4 # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Google Inc.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful, but
12 # WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 # General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22 """Module implementing the master-side code."""
24 # pylint: disable=W0201,C0302
26 # W0201 since most LU attributes are defined in CheckPrereq or similar
29 # C0302: since we have waaaay too many lines in this module
44 from ganeti import ssh
45 from ganeti import utils
46 from ganeti import errors
47 from ganeti import hypervisor
48 from ganeti import locking
49 from ganeti import constants
50 from ganeti import objects
51 from ganeti import ssconf
52 from ganeti import uidpool
53 from ganeti import compat
54 from ganeti import masterd
55 from ganeti import netutils
56 from ganeti import query
57 from ganeti import qlang
58 from ganeti import opcodes
60 from ganeti import rpc
61 from ganeti import runtime
62 from ganeti import pathutils
63 from ganeti import vcluster
64 from ganeti import network
65 from ganeti.masterd import iallocator
67 import ganeti.masterd.instance # pylint: disable=W0611
71 INSTANCE_DOWN = [constants.ADMINST_DOWN]
72 INSTANCE_ONLINE = [constants.ADMINST_DOWN, constants.ADMINST_UP]
73 INSTANCE_NOT_RUNNING = [constants.ADMINST_DOWN, constants.ADMINST_OFFLINE]
75 #: Instance status in which an instance can be marked as offline/online
76 CAN_CHANGE_INSTANCE_OFFLINE = (frozenset(INSTANCE_DOWN) | frozenset([
77 constants.ADMINST_OFFLINE,
82 """Data container for LU results with jobs.
84 Instances of this class returned from L{LogicalUnit.Exec} will be recognized
85 by L{mcpu._ProcessResult}. The latter will then submit the jobs
86 contained in the C{jobs} attribute and include the job IDs in the opcode
90 def __init__(self, jobs, **kwargs):
91 """Initializes this class.
93 Additional return values can be specified as keyword arguments.
95 @type jobs: list of lists of L{opcode.OpCode}
96 @param jobs: A list of lists of opcode objects
103 class LogicalUnit(object):
104 """Logical Unit base class.
106 Subclasses must follow these rules:
107 - implement ExpandNames
108 - implement CheckPrereq (except when tasklets are used)
109 - implement Exec (except when tasklets are used)
110 - implement BuildHooksEnv
111 - implement BuildHooksNodes
112 - redefine HPATH and HTYPE
113 - optionally redefine their run requirements:
114 REQ_BGL: the LU needs to hold the Big Ganeti Lock exclusively
116 Note that all commands require root permissions.
118 @ivar dry_run_result: the value (if any) that will be returned to the caller
119 in dry-run mode (signalled by opcode dry_run parameter)
126 def __init__(self, processor, op, context, rpc_runner):
127 """Constructor for LogicalUnit.
129 This needs to be overridden in derived classes in order to check op
133 self.proc = processor
135 self.cfg = context.cfg
136 self.glm = context.glm
138 self.owned_locks = context.glm.list_owned
139 self.context = context
140 self.rpc = rpc_runner
142 # Dictionaries used to declare locking needs to mcpu
143 self.needed_locks = None
144 self.share_locks = dict.fromkeys(locking.LEVELS, 0)
145 self.opportunistic_locks = dict.fromkeys(locking.LEVELS, False)
148 self.remove_locks = {}
150 # Used to force good behavior when calling helper functions
151 self.recalculate_locks = {}
154 self.Log = processor.Log # pylint: disable=C0103
155 self.LogWarning = processor.LogWarning # pylint: disable=C0103
156 self.LogInfo = processor.LogInfo # pylint: disable=C0103
157 self.LogStep = processor.LogStep # pylint: disable=C0103
158 # support for dry-run
159 self.dry_run_result = None
160 # support for generic debug attribute
161 if (not hasattr(self.op, "debug_level") or
162 not isinstance(self.op.debug_level, int)):
163 self.op.debug_level = 0
168 # Validate opcode parameters and set defaults
169 self.op.Validate(True)
171 self.CheckArguments()
173 def CheckArguments(self):
174 """Check syntactic validity for the opcode arguments.
176 This method is for doing a simple syntactic check and ensure
177 validity of opcode parameters, without any cluster-related
178 checks. While the same can be accomplished in ExpandNames and/or
179 CheckPrereq, doing these separate is better because:
181 - ExpandNames is left as as purely a lock-related function
182 - CheckPrereq is run after we have acquired locks (and possible
185 The function is allowed to change the self.op attribute so that
186 later methods can no longer worry about missing parameters.
191 def ExpandNames(self):
192 """Expand names for this LU.
194 This method is called before starting to execute the opcode, and it should
195 update all the parameters of the opcode to their canonical form (e.g. a
196 short node name must be fully expanded after this method has successfully
197 completed). This way locking, hooks, logging, etc. can work correctly.
199 LUs which implement this method must also populate the self.needed_locks
200 member, as a dict with lock levels as keys, and a list of needed lock names
203 - use an empty dict if you don't need any lock
204 - if you don't need any lock at a particular level omit that
205 level (note that in this case C{DeclareLocks} won't be called
206 at all for that level)
207 - if you need locks at a level, but you can't calculate it in
208 this function, initialise that level with an empty list and do
209 further processing in L{LogicalUnit.DeclareLocks} (see that
210 function's docstring)
211 - don't put anything for the BGL level
212 - if you want all locks at a level use L{locking.ALL_SET} as a value
214 If you need to share locks (rather than acquire them exclusively) at one
215 level you can modify self.share_locks, setting a true value (usually 1) for
216 that level. By default locks are not shared.
218 This function can also define a list of tasklets, which then will be
219 executed in order instead of the usual LU-level CheckPrereq and Exec
220 functions, if those are not defined by the LU.
224 # Acquire all nodes and one instance
225 self.needed_locks = {
226 locking.LEVEL_NODE: locking.ALL_SET,
227 locking.LEVEL_INSTANCE: ['instance1.example.com'],
229 # Acquire just two nodes
230 self.needed_locks = {
231 locking.LEVEL_NODE: ['node1.example.com', 'node2.example.com'],
234 self.needed_locks = {} # No, you can't leave it to the default value None
237 # The implementation of this method is mandatory only if the new LU is
238 # concurrent, so that old LUs don't need to be changed all at the same
241 self.needed_locks = {} # Exclusive LUs don't need locks.
243 raise NotImplementedError
245 def DeclareLocks(self, level):
246 """Declare LU locking needs for a level
248 While most LUs can just declare their locking needs at ExpandNames time,
249 sometimes there's the need to calculate some locks after having acquired
250 the ones before. This function is called just before acquiring locks at a
251 particular level, but after acquiring the ones at lower levels, and permits
252 such calculations. It can be used to modify self.needed_locks, and by
253 default it does nothing.
255 This function is only called if you have something already set in
256 self.needed_locks for the level.
258 @param level: Locking level which is going to be locked
259 @type level: member of L{ganeti.locking.LEVELS}
263 def CheckPrereq(self):
264 """Check prerequisites for this LU.
266 This method should check that the prerequisites for the execution
267 of this LU are fulfilled. It can do internode communication, but
268 it should be idempotent - no cluster or system changes are
271 The method should raise errors.OpPrereqError in case something is
272 not fulfilled. Its return value is ignored.
274 This method should also update all the parameters of the opcode to
275 their canonical form if it hasn't been done by ExpandNames before.
278 if self.tasklets is not None:
279 for (idx, tl) in enumerate(self.tasklets):
280 logging.debug("Checking prerequisites for tasklet %s/%s",
281 idx + 1, len(self.tasklets))
286 def Exec(self, feedback_fn):
289 This method should implement the actual work. It should raise
290 errors.OpExecError for failures that are somewhat dealt with in
294 if self.tasklets is not None:
295 for (idx, tl) in enumerate(self.tasklets):
296 logging.debug("Executing tasklet %s/%s", idx + 1, len(self.tasklets))
299 raise NotImplementedError
301 def BuildHooksEnv(self):
302 """Build hooks environment for this LU.
305 @return: Dictionary containing the environment that will be used for
306 running the hooks for this LU. The keys of the dict must not be prefixed
307 with "GANETI_"--that'll be added by the hooks runner. The hooks runner
308 will extend the environment with additional variables. If no environment
309 should be defined, an empty dictionary should be returned (not C{None}).
310 @note: If the C{HPATH} attribute of the LU class is C{None}, this function
314 raise NotImplementedError
316 def BuildHooksNodes(self):
317 """Build list of nodes to run LU's hooks.
319 @rtype: tuple; (list, list)
320 @return: Tuple containing a list of node names on which the hook
321 should run before the execution and a list of node names on which the
322 hook should run after the execution. No nodes should be returned as an
323 empty list (and not None).
324 @note: If the C{HPATH} attribute of the LU class is C{None}, this function
328 raise NotImplementedError
330 def HooksCallBack(self, phase, hook_results, feedback_fn, lu_result):
331 """Notify the LU about the results of its hooks.
333 This method is called every time a hooks phase is executed, and notifies
334 the Logical Unit about the hooks' result. The LU can then use it to alter
335 its result based on the hooks. By default the method does nothing and the
336 previous result is passed back unchanged but any LU can define it if it
337 wants to use the local cluster hook-scripts somehow.
339 @param phase: one of L{constants.HOOKS_PHASE_POST} or
340 L{constants.HOOKS_PHASE_PRE}; it denotes the hooks phase
341 @param hook_results: the results of the multi-node hooks rpc call
342 @param feedback_fn: function used send feedback back to the caller
343 @param lu_result: the previous Exec result this LU had, or None
345 @return: the new Exec result, based on the previous result
349 # API must be kept, thus we ignore the unused argument and could
350 # be a function warnings
351 # pylint: disable=W0613,R0201
354 def _ExpandAndLockInstance(self):
355 """Helper function to expand and lock an instance.
357 Many LUs that work on an instance take its name in self.op.instance_name
358 and need to expand it and then declare the expanded name for locking. This
359 function does it, and then updates self.op.instance_name to the expanded
360 name. It also initializes needed_locks as a dict, if this hasn't been done
364 if self.needed_locks is None:
365 self.needed_locks = {}
367 assert locking.LEVEL_INSTANCE not in self.needed_locks, \
368 "_ExpandAndLockInstance called with instance-level locks set"
369 self.op.instance_name = _ExpandInstanceName(self.cfg,
370 self.op.instance_name)
371 self.needed_locks[locking.LEVEL_INSTANCE] = self.op.instance_name
373 def _LockInstancesNodes(self, primary_only=False,
374 level=locking.LEVEL_NODE):
375 """Helper function to declare instances' nodes for locking.
377 This function should be called after locking one or more instances to lock
378 their nodes. Its effect is populating self.needed_locks[locking.LEVEL_NODE]
379 with all primary or secondary nodes for instances already locked and
380 present in self.needed_locks[locking.LEVEL_INSTANCE].
382 It should be called from DeclareLocks, and for safety only works if
383 self.recalculate_locks[locking.LEVEL_NODE] is set.
385 In the future it may grow parameters to just lock some instance's nodes, or
386 to just lock primaries or secondary nodes, if needed.
388 If should be called in DeclareLocks in a way similar to::
390 if level == locking.LEVEL_NODE:
391 self._LockInstancesNodes()
393 @type primary_only: boolean
394 @param primary_only: only lock primary nodes of locked instances
395 @param level: Which lock level to use for locking nodes
398 assert level in self.recalculate_locks, \
399 "_LockInstancesNodes helper function called with no nodes to recalculate"
401 # TODO: check if we're really been called with the instance locks held
403 # For now we'll replace self.needed_locks[locking.LEVEL_NODE], but in the
404 # future we might want to have different behaviors depending on the value
405 # of self.recalculate_locks[locking.LEVEL_NODE]
407 locked_i = self.owned_locks(locking.LEVEL_INSTANCE)
408 for _, instance in self.cfg.GetMultiInstanceInfo(locked_i):
409 wanted_nodes.append(instance.primary_node)
411 wanted_nodes.extend(instance.secondary_nodes)
413 if self.recalculate_locks[level] == constants.LOCKS_REPLACE:
414 self.needed_locks[level] = wanted_nodes
415 elif self.recalculate_locks[level] == constants.LOCKS_APPEND:
416 self.needed_locks[level].extend(wanted_nodes)
418 raise errors.ProgrammerError("Unknown recalculation mode")
420 del self.recalculate_locks[level]
423 class NoHooksLU(LogicalUnit): # pylint: disable=W0223
424 """Simple LU which runs no hooks.
426 This LU is intended as a parent for other LogicalUnits which will
427 run no hooks, in order to reduce duplicate code.
433 def BuildHooksEnv(self):
434 """Empty BuildHooksEnv for NoHooksLu.
436 This just raises an error.
439 raise AssertionError("BuildHooksEnv called for NoHooksLUs")
441 def BuildHooksNodes(self):
442 """Empty BuildHooksNodes for NoHooksLU.
445 raise AssertionError("BuildHooksNodes called for NoHooksLU")
449 """Tasklet base class.
451 Tasklets are subcomponents for LUs. LUs can consist entirely of tasklets or
452 they can mix legacy code with tasklets. Locking needs to be done in the LU,
453 tasklets know nothing about locks.
455 Subclasses must follow these rules:
456 - Implement CheckPrereq
460 def __init__(self, lu):
467 def CheckPrereq(self):
468 """Check prerequisites for this tasklets.
470 This method should check whether the prerequisites for the execution of
471 this tasklet are fulfilled. It can do internode communication, but it
472 should be idempotent - no cluster or system changes are allowed.
474 The method should raise errors.OpPrereqError in case something is not
475 fulfilled. Its return value is ignored.
477 This method should also update all parameters to their canonical form if it
478 hasn't been done before.
483 def Exec(self, feedback_fn):
484 """Execute the tasklet.
486 This method should implement the actual work. It should raise
487 errors.OpExecError for failures that are somewhat dealt with in code, or
491 raise NotImplementedError
495 """Base for query utility classes.
498 #: Attribute holding field definitions
504 def __init__(self, qfilter, fields, use_locking):
505 """Initializes this class.
508 self.use_locking = use_locking
510 self.query = query.Query(self.FIELDS, fields, qfilter=qfilter,
511 namefield=self.SORT_FIELD)
512 self.requested_data = self.query.RequestedData()
513 self.names = self.query.RequestedNames()
515 # Sort only if no names were requested
516 self.sort_by_name = not self.names
518 self.do_locking = None
521 def _GetNames(self, lu, all_names, lock_level):
522 """Helper function to determine names asked for in the query.
526 names = lu.owned_locks(lock_level)
530 if self.wanted == locking.ALL_SET:
531 assert not self.names
532 # caller didn't specify names, so ordering is not important
533 return utils.NiceSort(names)
535 # caller specified names and we must keep the same order
537 assert not self.do_locking or lu.glm.is_owned(lock_level)
539 missing = set(self.wanted).difference(names)
541 raise errors.OpExecError("Some items were removed before retrieving"
542 " their data: %s" % missing)
544 # Return expanded names
547 def ExpandNames(self, lu):
548 """Expand names for this query.
550 See L{LogicalUnit.ExpandNames}.
553 raise NotImplementedError()
555 def DeclareLocks(self, lu, level):
556 """Declare locks for this query.
558 See L{LogicalUnit.DeclareLocks}.
561 raise NotImplementedError()
563 def _GetQueryData(self, lu):
564 """Collects all data for this query.
566 @return: Query data object
569 raise NotImplementedError()
571 def NewStyleQuery(self, lu):
572 """Collect data and execute query.
575 return query.GetQueryResponse(self.query, self._GetQueryData(lu),
576 sort_by_name=self.sort_by_name)
578 def OldStyleQuery(self, lu):
579 """Collect data and execute query.
582 return self.query.OldStyleQuery(self._GetQueryData(lu),
583 sort_by_name=self.sort_by_name)
587 """Returns a dict declaring all lock levels shared.
590 return dict.fromkeys(locking.LEVELS, 1)
593 def _AnnotateDiskParams(instance, devs, cfg):
594 """Little helper wrapper to the rpc annotation method.
596 @param instance: The instance object
597 @type devs: List of L{objects.Disk}
598 @param devs: The root devices (not any of its children!)
599 @param cfg: The config object
600 @returns The annotated disk copies
601 @see L{rpc.AnnotateDiskParams}
604 return rpc.AnnotateDiskParams(instance.disk_template, devs,
605 cfg.GetInstanceDiskParams(instance))
608 def _CheckInstancesNodeGroups(cfg, instances, owned_groups, owned_nodes,
610 """Checks if node groups for locked instances are still correct.
612 @type cfg: L{config.ConfigWriter}
613 @param cfg: Cluster configuration
614 @type instances: dict; string as key, L{objects.Instance} as value
615 @param instances: Dictionary, instance name as key, instance object as value
616 @type owned_groups: iterable of string
617 @param owned_groups: List of owned groups
618 @type owned_nodes: iterable of string
619 @param owned_nodes: List of owned nodes
620 @type cur_group_uuid: string or None
621 @param cur_group_uuid: Optional group UUID to check against instance's groups
624 for (name, inst) in instances.items():
625 assert owned_nodes.issuperset(inst.all_nodes), \
626 "Instance %s's nodes changed while we kept the lock" % name
628 inst_groups = _CheckInstanceNodeGroups(cfg, name, owned_groups)
630 assert cur_group_uuid is None or cur_group_uuid in inst_groups, \
631 "Instance %s has no node in group %s" % (name, cur_group_uuid)
634 def _CheckInstanceNodeGroups(cfg, instance_name, owned_groups,
636 """Checks if the owned node groups are still correct for an instance.
638 @type cfg: L{config.ConfigWriter}
639 @param cfg: The cluster configuration
640 @type instance_name: string
641 @param instance_name: Instance name
642 @type owned_groups: set or frozenset
643 @param owned_groups: List of currently owned node groups
644 @type primary_only: boolean
645 @param primary_only: Whether to check node groups for only the primary node
648 inst_groups = cfg.GetInstanceNodeGroups(instance_name, primary_only)
650 if not owned_groups.issuperset(inst_groups):
651 raise errors.OpPrereqError("Instance %s's node groups changed since"
652 " locks were acquired, current groups are"
653 " are '%s', owning groups '%s'; retry the"
656 utils.CommaJoin(inst_groups),
657 utils.CommaJoin(owned_groups)),
663 def _CheckNodeGroupInstances(cfg, group_uuid, owned_instances):
664 """Checks if the instances in a node group are still correct.
666 @type cfg: L{config.ConfigWriter}
667 @param cfg: The cluster configuration
668 @type group_uuid: string
669 @param group_uuid: Node group UUID
670 @type owned_instances: set or frozenset
671 @param owned_instances: List of currently owned instances
674 wanted_instances = cfg.GetNodeGroupInstances(group_uuid)
675 if owned_instances != wanted_instances:
676 raise errors.OpPrereqError("Instances in node group '%s' changed since"
677 " locks were acquired, wanted '%s', have '%s';"
678 " retry the operation" %
680 utils.CommaJoin(wanted_instances),
681 utils.CommaJoin(owned_instances)),
684 return wanted_instances
687 def _SupportsOob(cfg, node):
688 """Tells if node supports OOB.
690 @type cfg: L{config.ConfigWriter}
691 @param cfg: The cluster configuration
692 @type node: L{objects.Node}
693 @param node: The node
694 @return: The OOB script if supported or an empty string otherwise
697 return cfg.GetNdParams(node)[constants.ND_OOB_PROGRAM]
700 def _CopyLockList(names):
701 """Makes a copy of a list of lock names.
703 Handles L{locking.ALL_SET} correctly.
706 if names == locking.ALL_SET:
707 return locking.ALL_SET
712 def _GetWantedNodes(lu, nodes):
713 """Returns list of checked and expanded node names.
715 @type lu: L{LogicalUnit}
716 @param lu: the logical unit on whose behalf we execute
718 @param nodes: list of node names or None for all nodes
720 @return: the list of nodes, sorted
721 @raise errors.ProgrammerError: if the nodes parameter is wrong type
725 return [_ExpandNodeName(lu.cfg, name) for name in nodes]
727 return utils.NiceSort(lu.cfg.GetNodeList())
730 def _GetWantedInstances(lu, instances):
731 """Returns list of checked and expanded instance names.
733 @type lu: L{LogicalUnit}
734 @param lu: the logical unit on whose behalf we execute
735 @type instances: list
736 @param instances: list of instance names or None for all instances
738 @return: the list of instances, sorted
739 @raise errors.OpPrereqError: if the instances parameter is wrong type
740 @raise errors.OpPrereqError: if any of the passed instances is not found
744 wanted = [_ExpandInstanceName(lu.cfg, name) for name in instances]
746 wanted = utils.NiceSort(lu.cfg.GetInstanceList())
750 def _GetUpdatedParams(old_params, update_dict,
751 use_default=True, use_none=False):
752 """Return the new version of a parameter dictionary.
754 @type old_params: dict
755 @param old_params: old parameters
756 @type update_dict: dict
757 @param update_dict: dict containing new parameter values, or
758 constants.VALUE_DEFAULT to reset the parameter to its default
760 @param use_default: boolean
761 @type use_default: whether to recognise L{constants.VALUE_DEFAULT}
762 values as 'to be deleted' values
763 @param use_none: boolean
764 @type use_none: whether to recognise C{None} values as 'to be
767 @return: the new parameter dictionary
770 params_copy = copy.deepcopy(old_params)
771 for key, val in update_dict.iteritems():
772 if ((use_default and val == constants.VALUE_DEFAULT) or
773 (use_none and val is None)):
779 params_copy[key] = val
783 def _GetUpdatedIPolicy(old_ipolicy, new_ipolicy, group_policy=False):
784 """Return the new version of a instance policy.
786 @param group_policy: whether this policy applies to a group and thus
787 we should support removal of policy entries
790 use_none = use_default = group_policy
791 ipolicy = copy.deepcopy(old_ipolicy)
792 for key, value in new_ipolicy.items():
793 if key not in constants.IPOLICY_ALL_KEYS:
794 raise errors.OpPrereqError("Invalid key in new ipolicy: %s" % key,
796 if key in constants.IPOLICY_ISPECS:
797 utils.ForceDictType(value, constants.ISPECS_PARAMETER_TYPES)
798 ipolicy[key] = _GetUpdatedParams(old_ipolicy.get(key, {}), value,
800 use_default=use_default)
802 if (not value or value == [constants.VALUE_DEFAULT] or
803 value == constants.VALUE_DEFAULT):
807 raise errors.OpPrereqError("Can't unset ipolicy attribute '%s'"
808 " on the cluster'" % key,
811 if key in constants.IPOLICY_PARAMETERS:
812 # FIXME: we assume all such values are float
814 ipolicy[key] = float(value)
815 except (TypeError, ValueError), err:
816 raise errors.OpPrereqError("Invalid value for attribute"
817 " '%s': '%s', error: %s" %
818 (key, value, err), errors.ECODE_INVAL)
820 # FIXME: we assume all others are lists; this should be redone
822 ipolicy[key] = list(value)
824 objects.InstancePolicy.CheckParameterSyntax(ipolicy, not group_policy)
825 except errors.ConfigurationError, err:
826 raise errors.OpPrereqError("Invalid instance policy: %s" % err,
831 def _UpdateAndVerifySubDict(base, updates, type_check):
832 """Updates and verifies a dict with sub dicts of the same type.
834 @param base: The dict with the old data
835 @param updates: The dict with the new data
836 @param type_check: Dict suitable to ForceDictType to verify correct types
837 @returns: A new dict with updated and verified values
841 new = _GetUpdatedParams(old, value)
842 utils.ForceDictType(new, type_check)
845 ret = copy.deepcopy(base)
846 ret.update(dict((key, fn(base.get(key, {}), value))
847 for key, value in updates.items()))
851 def _MergeAndVerifyHvState(op_input, obj_input):
852 """Combines the hv state from an opcode with the one of the object
854 @param op_input: The input dict from the opcode
855 @param obj_input: The input dict from the objects
856 @return: The verified and updated dict
860 invalid_hvs = set(op_input) - constants.HYPER_TYPES
862 raise errors.OpPrereqError("Invalid hypervisor(s) in hypervisor state:"
863 " %s" % utils.CommaJoin(invalid_hvs),
865 if obj_input is None:
867 type_check = constants.HVSTS_PARAMETER_TYPES
868 return _UpdateAndVerifySubDict(obj_input, op_input, type_check)
873 def _MergeAndVerifyDiskState(op_input, obj_input):
874 """Combines the disk state from an opcode with the one of the object
876 @param op_input: The input dict from the opcode
877 @param obj_input: The input dict from the objects
878 @return: The verified and updated dict
881 invalid_dst = set(op_input) - constants.DS_VALID_TYPES
883 raise errors.OpPrereqError("Invalid storage type(s) in disk state: %s" %
884 utils.CommaJoin(invalid_dst),
886 type_check = constants.DSS_PARAMETER_TYPES
887 if obj_input is None:
889 return dict((key, _UpdateAndVerifySubDict(obj_input.get(key, {}), value,
891 for key, value in op_input.items())
896 def _ReleaseLocks(lu, level, names=None, keep=None):
897 """Releases locks owned by an LU.
899 @type lu: L{LogicalUnit}
900 @param level: Lock level
901 @type names: list or None
902 @param names: Names of locks to release
903 @type keep: list or None
904 @param keep: Names of locks to retain
907 assert not (keep is not None and names is not None), \
908 "Only one of the 'names' and the 'keep' parameters can be given"
910 if names is not None:
911 should_release = names.__contains__
913 should_release = lambda name: name not in keep
915 should_release = None
917 owned = lu.owned_locks(level)
919 # Not owning any lock at this level, do nothing
926 # Determine which locks to release
928 if should_release(name):
933 assert len(lu.owned_locks(level)) == (len(retain) + len(release))
935 # Release just some locks
936 lu.glm.release(level, names=release)
938 assert frozenset(lu.owned_locks(level)) == frozenset(retain)
941 lu.glm.release(level)
943 assert not lu.glm.is_owned(level), "No locks should be owned"
946 def _MapInstanceDisksToNodes(instances):
947 """Creates a map from (node, volume) to instance name.
949 @type instances: list of L{objects.Instance}
950 @rtype: dict; tuple of (node name, volume name) as key, instance name as value
953 return dict(((node, vol), inst.name)
954 for inst in instances
955 for (node, vols) in inst.MapLVsByNode().items()
959 def _RunPostHook(lu, node_name):
960 """Runs the post-hook for an opcode on a single node.
963 hm = lu.proc.BuildHooksManager(lu)
965 hm.RunPhase(constants.HOOKS_PHASE_POST, nodes=[node_name])
966 except Exception, err: # pylint: disable=W0703
967 lu.LogWarning("Errors occurred running hooks on %s: %s",
971 def _CheckOutputFields(static, dynamic, selected):
972 """Checks whether all selected fields are valid.
974 @type static: L{utils.FieldSet}
975 @param static: static fields set
976 @type dynamic: L{utils.FieldSet}
977 @param dynamic: dynamic fields set
984 delta = f.NonMatching(selected)
986 raise errors.OpPrereqError("Unknown output fields selected: %s"
987 % ",".join(delta), errors.ECODE_INVAL)
990 def _CheckGlobalHvParams(params):
991 """Validates that given hypervisor params are not global ones.
993 This will ensure that instances don't get customised versions of
997 used_globals = constants.HVC_GLOBALS.intersection(params)
999 msg = ("The following hypervisor parameters are global and cannot"
1000 " be customized at instance level, please modify them at"
1001 " cluster level: %s" % utils.CommaJoin(used_globals))
1002 raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
1005 def _CheckNodeOnline(lu, node, msg=None):
1006 """Ensure that a given node is online.
1008 @param lu: the LU on behalf of which we make the check
1009 @param node: the node to check
1010 @param msg: if passed, should be a message to replace the default one
1011 @raise errors.OpPrereqError: if the node is offline
1015 msg = "Can't use offline node"
1016 if lu.cfg.GetNodeInfo(node).offline:
1017 raise errors.OpPrereqError("%s: %s" % (msg, node), errors.ECODE_STATE)
1020 def _CheckNodeNotDrained(lu, node):
1021 """Ensure that a given node is not drained.
1023 @param lu: the LU on behalf of which we make the check
1024 @param node: the node to check
1025 @raise errors.OpPrereqError: if the node is drained
1028 if lu.cfg.GetNodeInfo(node).drained:
1029 raise errors.OpPrereqError("Can't use drained node %s" % node,
1033 def _CheckNodeVmCapable(lu, node):
1034 """Ensure that a given node is vm capable.
1036 @param lu: the LU on behalf of which we make the check
1037 @param node: the node to check
1038 @raise errors.OpPrereqError: if the node is not vm capable
1041 if not lu.cfg.GetNodeInfo(node).vm_capable:
1042 raise errors.OpPrereqError("Can't use non-vm_capable node %s" % node,
1046 def _CheckNodeHasOS(lu, node, os_name, force_variant):
1047 """Ensure that a node supports a given OS.
1049 @param lu: the LU on behalf of which we make the check
1050 @param node: the node to check
1051 @param os_name: the OS to query about
1052 @param force_variant: whether to ignore variant errors
1053 @raise errors.OpPrereqError: if the node is not supporting the OS
1056 result = lu.rpc.call_os_get(node, os_name)
1057 result.Raise("OS '%s' not in supported OS list for node %s" %
1059 prereq=True, ecode=errors.ECODE_INVAL)
1060 if not force_variant:
1061 _CheckOSVariant(result.payload, os_name)
1064 def _CheckNodeHasSecondaryIP(lu, node, secondary_ip, prereq):
1065 """Ensure that a node has the given secondary ip.
1067 @type lu: L{LogicalUnit}
1068 @param lu: the LU on behalf of which we make the check
1070 @param node: the node to check
1071 @type secondary_ip: string
1072 @param secondary_ip: the ip to check
1073 @type prereq: boolean
1074 @param prereq: whether to throw a prerequisite or an execute error
1075 @raise errors.OpPrereqError: if the node doesn't have the ip, and prereq=True
1076 @raise errors.OpExecError: if the node doesn't have the ip, and prereq=False
1079 result = lu.rpc.call_node_has_ip_address(node, secondary_ip)
1080 result.Raise("Failure checking secondary ip on node %s" % node,
1081 prereq=prereq, ecode=errors.ECODE_ENVIRON)
1082 if not result.payload:
1083 msg = ("Node claims it doesn't have the secondary ip you gave (%s),"
1084 " please fix and re-run this command" % secondary_ip)
1086 raise errors.OpPrereqError(msg, errors.ECODE_ENVIRON)
1088 raise errors.OpExecError(msg)
1091 def _GetClusterDomainSecret():
1092 """Reads the cluster domain secret.
1095 return utils.ReadOneLineFile(pathutils.CLUSTER_DOMAIN_SECRET_FILE,
1099 def _CheckInstanceState(lu, instance, req_states, msg=None):
1100 """Ensure that an instance is in one of the required states.
1102 @param lu: the LU on behalf of which we make the check
1103 @param instance: the instance to check
1104 @param msg: if passed, should be a message to replace the default one
1105 @raise errors.OpPrereqError: if the instance is not in the required state
1109 msg = ("can't use instance from outside %s states" %
1110 utils.CommaJoin(req_states))
1111 if instance.admin_state not in req_states:
1112 raise errors.OpPrereqError("Instance '%s' is marked to be %s, %s" %
1113 (instance.name, instance.admin_state, msg),
1116 if constants.ADMINST_UP not in req_states:
1117 pnode = instance.primary_node
1118 if not lu.cfg.GetNodeInfo(pnode).offline:
1119 ins_l = lu.rpc.call_instance_list([pnode], [instance.hypervisor])[pnode]
1120 ins_l.Raise("Can't contact node %s for instance information" % pnode,
1121 prereq=True, ecode=errors.ECODE_ENVIRON)
1122 if instance.name in ins_l.payload:
1123 raise errors.OpPrereqError("Instance %s is running, %s" %
1124 (instance.name, msg), errors.ECODE_STATE)
1126 lu.LogWarning("Primary node offline, ignoring check that instance"
1130 def _ComputeMinMaxSpec(name, qualifier, ipolicy, value):
1131 """Computes if value is in the desired range.
1133 @param name: name of the parameter for which we perform the check
1134 @param qualifier: a qualifier used in the error message (e.g. 'disk/1',
1136 @param ipolicy: dictionary containing min, max and std values
1137 @param value: actual value that we want to use
1138 @return: None or element not meeting the criteria
1142 if value in [None, constants.VALUE_AUTO]:
1144 max_v = ipolicy[constants.ISPECS_MAX].get(name, value)
1145 min_v = ipolicy[constants.ISPECS_MIN].get(name, value)
1146 if value > max_v or min_v > value:
1148 fqn = "%s/%s" % (name, qualifier)
1151 return ("%s value %s is not in range [%s, %s]" %
1152 (fqn, value, min_v, max_v))
1156 def _ComputeIPolicySpecViolation(ipolicy, mem_size, cpu_count, disk_count,
1157 nic_count, disk_sizes, spindle_use,
1158 _compute_fn=_ComputeMinMaxSpec):
1159 """Verifies ipolicy against provided specs.
1162 @param ipolicy: The ipolicy
1164 @param mem_size: The memory size
1165 @type cpu_count: int
1166 @param cpu_count: Used cpu cores
1167 @type disk_count: int
1168 @param disk_count: Number of disks used
1169 @type nic_count: int
1170 @param nic_count: Number of nics used
1171 @type disk_sizes: list of ints
1172 @param disk_sizes: Disk sizes of used disk (len must match C{disk_count})
1173 @type spindle_use: int
1174 @param spindle_use: The number of spindles this instance uses
1175 @param _compute_fn: The compute function (unittest only)
1176 @return: A list of violations, or an empty list of no violations are found
1179 assert disk_count == len(disk_sizes)
1182 (constants.ISPEC_MEM_SIZE, "", mem_size),
1183 (constants.ISPEC_CPU_COUNT, "", cpu_count),
1184 (constants.ISPEC_DISK_COUNT, "", disk_count),
1185 (constants.ISPEC_NIC_COUNT, "", nic_count),
1186 (constants.ISPEC_SPINDLE_USE, "", spindle_use),
1187 ] + [(constants.ISPEC_DISK_SIZE, str(idx), d)
1188 for idx, d in enumerate(disk_sizes)]
1191 (_compute_fn(name, qualifier, ipolicy, value)
1192 for (name, qualifier, value) in test_settings))
1195 def _ComputeIPolicyInstanceViolation(ipolicy, instance,
1196 _compute_fn=_ComputeIPolicySpecViolation):
1197 """Compute if instance meets the specs of ipolicy.
1200 @param ipolicy: The ipolicy to verify against
1201 @type instance: L{objects.Instance}
1202 @param instance: The instance to verify
1203 @param _compute_fn: The function to verify ipolicy (unittest only)
1204 @see: L{_ComputeIPolicySpecViolation}
1207 mem_size = instance.beparams.get(constants.BE_MAXMEM, None)
1208 cpu_count = instance.beparams.get(constants.BE_VCPUS, None)
1209 spindle_use = instance.beparams.get(constants.BE_SPINDLE_USE, None)
1210 disk_count = len(instance.disks)
1211 disk_sizes = [disk.size for disk in instance.disks]
1212 nic_count = len(instance.nics)
1214 return _compute_fn(ipolicy, mem_size, cpu_count, disk_count, nic_count,
1215 disk_sizes, spindle_use)
1218 def _ComputeIPolicyInstanceSpecViolation(
1219 ipolicy, instance_spec, _compute_fn=_ComputeIPolicySpecViolation):
1220 """Compute if instance specs meets the specs of ipolicy.
1223 @param ipolicy: The ipolicy to verify against
1224 @param instance_spec: dict
1225 @param instance_spec: The instance spec to verify
1226 @param _compute_fn: The function to verify ipolicy (unittest only)
1227 @see: L{_ComputeIPolicySpecViolation}
1230 mem_size = instance_spec.get(constants.ISPEC_MEM_SIZE, None)
1231 cpu_count = instance_spec.get(constants.ISPEC_CPU_COUNT, None)
1232 disk_count = instance_spec.get(constants.ISPEC_DISK_COUNT, 0)
1233 disk_sizes = instance_spec.get(constants.ISPEC_DISK_SIZE, [])
1234 nic_count = instance_spec.get(constants.ISPEC_NIC_COUNT, 0)
1235 spindle_use = instance_spec.get(constants.ISPEC_SPINDLE_USE, None)
1237 return _compute_fn(ipolicy, mem_size, cpu_count, disk_count, nic_count,
1238 disk_sizes, spindle_use)
1241 def _ComputeIPolicyNodeViolation(ipolicy, instance, current_group,
1243 _compute_fn=_ComputeIPolicyInstanceViolation):
1244 """Compute if instance meets the specs of the new target group.
1246 @param ipolicy: The ipolicy to verify
1247 @param instance: The instance object to verify
1248 @param current_group: The current group of the instance
1249 @param target_group: The new group of the instance
1250 @param _compute_fn: The function to verify ipolicy (unittest only)
1251 @see: L{_ComputeIPolicySpecViolation}
1254 if current_group == target_group:
1257 return _compute_fn(ipolicy, instance)
1260 def _CheckTargetNodeIPolicy(lu, ipolicy, instance, node, ignore=False,
1261 _compute_fn=_ComputeIPolicyNodeViolation):
1262 """Checks that the target node is correct in terms of instance policy.
1264 @param ipolicy: The ipolicy to verify
1265 @param instance: The instance object to verify
1266 @param node: The new node to relocate
1267 @param ignore: Ignore violations of the ipolicy
1268 @param _compute_fn: The function to verify ipolicy (unittest only)
1269 @see: L{_ComputeIPolicySpecViolation}
1272 primary_node = lu.cfg.GetNodeInfo(instance.primary_node)
1273 res = _compute_fn(ipolicy, instance, primary_node.group, node.group)
1276 msg = ("Instance does not meet target node group's (%s) instance"
1277 " policy: %s") % (node.group, utils.CommaJoin(res))
1281 raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
1284 def _ComputeNewInstanceViolations(old_ipolicy, new_ipolicy, instances):
1285 """Computes a set of any instances that would violate the new ipolicy.
1287 @param old_ipolicy: The current (still in-place) ipolicy
1288 @param new_ipolicy: The new (to become) ipolicy
1289 @param instances: List of instances to verify
1290 @return: A list of instances which violates the new ipolicy but
1294 return (_ComputeViolatingInstances(new_ipolicy, instances) -
1295 _ComputeViolatingInstances(old_ipolicy, instances))
1298 def _ExpandItemName(fn, name, kind):
1299 """Expand an item name.
1301 @param fn: the function to use for expansion
1302 @param name: requested item name
1303 @param kind: text description ('Node' or 'Instance')
1304 @return: the resolved (full) name
1305 @raise errors.OpPrereqError: if the item is not found
1308 full_name = fn(name)
1309 if full_name is None:
1310 raise errors.OpPrereqError("%s '%s' not known" % (kind, name),
1315 def _ExpandNodeName(cfg, name):
1316 """Wrapper over L{_ExpandItemName} for nodes."""
1317 return _ExpandItemName(cfg.ExpandNodeName, name, "Node")
1320 def _ExpandInstanceName(cfg, name):
1321 """Wrapper over L{_ExpandItemName} for instance."""
1322 return _ExpandItemName(cfg.ExpandInstanceName, name, "Instance")
1325 def _BuildNetworkHookEnv(name, subnet, gateway, network6, gateway6,
1326 network_type, mac_prefix, tags):
1327 """Builds network related env variables for hooks
1329 This builds the hook environment from individual variables.
1332 @param name: the name of the network
1333 @type subnet: string
1334 @param subnet: the ipv4 subnet
1335 @type gateway: string
1336 @param gateway: the ipv4 gateway
1337 @type network6: string
1338 @param network6: the ipv6 subnet
1339 @type gateway6: string
1340 @param gateway6: the ipv6 gateway
1341 @type network_type: string
1342 @param network_type: the type of the network
1343 @type mac_prefix: string
1344 @param mac_prefix: the mac_prefix
1346 @param tags: the tags of the network
1351 env["NETWORK_NAME"] = name
1353 env["NETWORK_SUBNET"] = subnet
1355 env["NETWORK_GATEWAY"] = gateway
1357 env["NETWORK_SUBNET6"] = network6
1359 env["NETWORK_GATEWAY6"] = gateway6
1361 env["NETWORK_MAC_PREFIX"] = mac_prefix
1363 env["NETWORK_TYPE"] = network_type
1365 env["NETWORK_TAGS"] = " ".join(tags)
1370 def _BuildInstanceHookEnv(name, primary_node, secondary_nodes, os_type, status,
1371 minmem, maxmem, vcpus, nics, disk_template, disks,
1372 bep, hvp, hypervisor_name, tags):
1373 """Builds instance related env variables for hooks
1375 This builds the hook environment from individual variables.
1378 @param name: the name of the instance
1379 @type primary_node: string
1380 @param primary_node: the name of the instance's primary node
1381 @type secondary_nodes: list
1382 @param secondary_nodes: list of secondary nodes as strings
1383 @type os_type: string
1384 @param os_type: the name of the instance's OS
1385 @type status: string
1386 @param status: the desired status of the instance
1387 @type minmem: string
1388 @param minmem: the minimum memory size of the instance
1389 @type maxmem: string
1390 @param maxmem: the maximum memory size of the instance
1392 @param vcpus: the count of VCPUs the instance has
1394 @param nics: list of tuples (ip, mac, mode, link, network) representing
1395 the NICs the instance has
1396 @type disk_template: string
1397 @param disk_template: the disk template of the instance
1399 @param disks: the list of (size, mode) pairs
1401 @param bep: the backend parameters for the instance
1403 @param hvp: the hypervisor parameters for the instance
1404 @type hypervisor_name: string
1405 @param hypervisor_name: the hypervisor for the instance
1407 @param tags: list of instance tags as strings
1409 @return: the hook environment for this instance
1414 "INSTANCE_NAME": name,
1415 "INSTANCE_PRIMARY": primary_node,
1416 "INSTANCE_SECONDARIES": " ".join(secondary_nodes),
1417 "INSTANCE_OS_TYPE": os_type,
1418 "INSTANCE_STATUS": status,
1419 "INSTANCE_MINMEM": minmem,
1420 "INSTANCE_MAXMEM": maxmem,
1421 # TODO(2.7) remove deprecated "memory" value
1422 "INSTANCE_MEMORY": maxmem,
1423 "INSTANCE_VCPUS": vcpus,
1424 "INSTANCE_DISK_TEMPLATE": disk_template,
1425 "INSTANCE_HYPERVISOR": hypervisor_name,
1428 nic_count = len(nics)
1429 for idx, (ip, mac, mode, link, net, netinfo) in enumerate(nics):
1432 env["INSTANCE_NIC%d_IP" % idx] = ip
1433 env["INSTANCE_NIC%d_MAC" % idx] = mac
1434 env["INSTANCE_NIC%d_MODE" % idx] = mode
1435 env["INSTANCE_NIC%d_LINK" % idx] = link
1437 env["INSTANCE_NIC%d_NETWORK" % idx] = net
1439 nobj = objects.Network.FromDict(netinfo)
1441 env["INSTANCE_NIC%d_NETWORK_SUBNET" % idx] = nobj.network
1443 env["INSTANCE_NIC%d_NETWORK_GATEWAY" % idx] = nobj.gateway
1445 env["INSTANCE_NIC%d_NETWORK_SUBNET6" % idx] = nobj.network6
1447 env["INSTANCE_NIC%d_NETWORK_GATEWAY6" % idx] = nobj.gateway6
1449 env["INSTANCE_NIC%d_NETWORK_MAC_PREFIX" % idx] = nobj.mac_prefix
1450 if nobj.network_type:
1451 env["INSTANCE_NIC%d_NETWORK_TYPE" % idx] = nobj.network_type
1453 env["INSTANCE_NIC%d_NETWORK_TAGS" % idx] = " ".join(nobj.tags)
1454 if mode == constants.NIC_MODE_BRIDGED:
1455 env["INSTANCE_NIC%d_BRIDGE" % idx] = link
1459 env["INSTANCE_NIC_COUNT"] = nic_count
1462 disk_count = len(disks)
1463 for idx, (size, mode) in enumerate(disks):
1464 env["INSTANCE_DISK%d_SIZE" % idx] = size
1465 env["INSTANCE_DISK%d_MODE" % idx] = mode
1469 env["INSTANCE_DISK_COUNT"] = disk_count
1474 env["INSTANCE_TAGS"] = " ".join(tags)
1476 for source, kind in [(bep, "BE"), (hvp, "HV")]:
1477 for key, value in source.items():
1478 env["INSTANCE_%s_%s" % (kind, key)] = value
1483 def _NICToTuple(lu, nic):
1484 """Build a tupple of nic information.
1486 @type lu: L{LogicalUnit}
1487 @param lu: the logical unit on whose behalf we execute
1488 @type nic: L{objects.NIC}
1489 @param nic: nic to convert to hooks tuple
1494 cluster = lu.cfg.GetClusterInfo()
1495 filled_params = cluster.SimpleFillNIC(nic.nicparams)
1496 mode = filled_params[constants.NIC_MODE]
1497 link = filled_params[constants.NIC_LINK]
1501 net_uuid = lu.cfg.LookupNetwork(net)
1503 nobj = lu.cfg.GetNetwork(net_uuid)
1504 netinfo = objects.Network.ToDict(nobj)
1505 return (ip, mac, mode, link, net, netinfo)
1508 def _NICListToTuple(lu, nics):
1509 """Build a list of nic information tuples.
1511 This list is suitable to be passed to _BuildInstanceHookEnv or as a return
1512 value in LUInstanceQueryData.
1514 @type lu: L{LogicalUnit}
1515 @param lu: the logical unit on whose behalf we execute
1516 @type nics: list of L{objects.NIC}
1517 @param nics: list of nics to convert to hooks tuples
1522 hooks_nics.append(_NICToTuple(lu, nic))
1526 def _BuildInstanceHookEnvByObject(lu, instance, override=None):
1527 """Builds instance related env variables for hooks from an object.
1529 @type lu: L{LogicalUnit}
1530 @param lu: the logical unit on whose behalf we execute
1531 @type instance: L{objects.Instance}
1532 @param instance: the instance for which we should build the
1534 @type override: dict
1535 @param override: dictionary with key/values that will override
1538 @return: the hook environment dictionary
1541 cluster = lu.cfg.GetClusterInfo()
1542 bep = cluster.FillBE(instance)
1543 hvp = cluster.FillHV(instance)
1545 "name": instance.name,
1546 "primary_node": instance.primary_node,
1547 "secondary_nodes": instance.secondary_nodes,
1548 "os_type": instance.os,
1549 "status": instance.admin_state,
1550 "maxmem": bep[constants.BE_MAXMEM],
1551 "minmem": bep[constants.BE_MINMEM],
1552 "vcpus": bep[constants.BE_VCPUS],
1553 "nics": _NICListToTuple(lu, instance.nics),
1554 "disk_template": instance.disk_template,
1555 "disks": [(disk.size, disk.mode) for disk in instance.disks],
1558 "hypervisor_name": instance.hypervisor,
1559 "tags": instance.tags,
1562 args.update(override)
1563 return _BuildInstanceHookEnv(**args) # pylint: disable=W0142
1566 def _AdjustCandidatePool(lu, exceptions):
1567 """Adjust the candidate pool after node operations.
1570 mod_list = lu.cfg.MaintainCandidatePool(exceptions)
1572 lu.LogInfo("Promoted nodes to master candidate role: %s",
1573 utils.CommaJoin(node.name for node in mod_list))
1574 for name in mod_list:
1575 lu.context.ReaddNode(name)
1576 mc_now, mc_max, _ = lu.cfg.GetMasterCandidateStats(exceptions)
1578 lu.LogInfo("Note: more nodes are candidates (%d) than desired (%d)" %
1582 def _DecideSelfPromotion(lu, exceptions=None):
1583 """Decide whether I should promote myself as a master candidate.
1586 cp_size = lu.cfg.GetClusterInfo().candidate_pool_size
1587 mc_now, mc_should, _ = lu.cfg.GetMasterCandidateStats(exceptions)
1588 # the new node will increase mc_max with one, so:
1589 mc_should = min(mc_should + 1, cp_size)
1590 return mc_now < mc_should
1593 def _ComputeViolatingInstances(ipolicy, instances):
1594 """Computes a set of instances who violates given ipolicy.
1596 @param ipolicy: The ipolicy to verify
1597 @type instances: object.Instance
1598 @param instances: List of instances to verify
1599 @return: A frozenset of instance names violating the ipolicy
1602 return frozenset([inst.name for inst in instances
1603 if _ComputeIPolicyInstanceViolation(ipolicy, inst)])
1606 def _CheckNicsBridgesExist(lu, target_nics, target_node):
1607 """Check that the brigdes needed by a list of nics exist.
1610 cluster = lu.cfg.GetClusterInfo()
1611 paramslist = [cluster.SimpleFillNIC(nic.nicparams) for nic in target_nics]
1612 brlist = [params[constants.NIC_LINK] for params in paramslist
1613 if params[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED]
1615 result = lu.rpc.call_bridges_exist(target_node, brlist)
1616 result.Raise("Error checking bridges on destination node '%s'" %
1617 target_node, prereq=True, ecode=errors.ECODE_ENVIRON)
1620 def _CheckInstanceBridgesExist(lu, instance, node=None):
1621 """Check that the brigdes needed by an instance exist.
1625 node = instance.primary_node
1626 _CheckNicsBridgesExist(lu, instance.nics, node)
1629 def _CheckOSVariant(os_obj, name):
1630 """Check whether an OS name conforms to the os variants specification.
1632 @type os_obj: L{objects.OS}
1633 @param os_obj: OS object to check
1635 @param name: OS name passed by the user, to check for validity
1638 variant = objects.OS.GetVariant(name)
1639 if not os_obj.supported_variants:
1641 raise errors.OpPrereqError("OS '%s' doesn't support variants ('%s'"
1642 " passed)" % (os_obj.name, variant),
1646 raise errors.OpPrereqError("OS name must include a variant",
1649 if variant not in os_obj.supported_variants:
1650 raise errors.OpPrereqError("Unsupported OS variant", errors.ECODE_INVAL)
1653 def _GetNodeInstancesInner(cfg, fn):
1654 return [i for i in cfg.GetAllInstancesInfo().values() if fn(i)]
1657 def _GetNodeInstances(cfg, node_name):
1658 """Returns a list of all primary and secondary instances on a node.
1662 return _GetNodeInstancesInner(cfg, lambda inst: node_name in inst.all_nodes)
1665 def _GetNodePrimaryInstances(cfg, node_name):
1666 """Returns primary instances on a node.
1669 return _GetNodeInstancesInner(cfg,
1670 lambda inst: node_name == inst.primary_node)
1673 def _GetNodeSecondaryInstances(cfg, node_name):
1674 """Returns secondary instances on a node.
1677 return _GetNodeInstancesInner(cfg,
1678 lambda inst: node_name in inst.secondary_nodes)
1681 def _GetStorageTypeArgs(cfg, storage_type):
1682 """Returns the arguments for a storage type.
1685 # Special case for file storage
1686 if storage_type == constants.ST_FILE:
1687 # storage.FileStorage wants a list of storage directories
1688 return [[cfg.GetFileStorageDir(), cfg.GetSharedFileStorageDir()]]
1693 def _FindFaultyInstanceDisks(cfg, rpc_runner, instance, node_name, prereq):
1696 for dev in instance.disks:
1697 cfg.SetDiskID(dev, node_name)
1699 result = rpc_runner.call_blockdev_getmirrorstatus(node_name, (instance.disks,
1701 result.Raise("Failed to get disk status from node %s" % node_name,
1702 prereq=prereq, ecode=errors.ECODE_ENVIRON)
1704 for idx, bdev_status in enumerate(result.payload):
1705 if bdev_status and bdev_status.ldisk_status == constants.LDS_FAULTY:
1711 def _CheckIAllocatorOrNode(lu, iallocator_slot, node_slot):
1712 """Check the sanity of iallocator and node arguments and use the
1713 cluster-wide iallocator if appropriate.
1715 Check that at most one of (iallocator, node) is specified. If none is
1716 specified, or the iallocator is L{constants.DEFAULT_IALLOCATOR_SHORTCUT},
1717 then the LU's opcode's iallocator slot is filled with the cluster-wide
1720 @type iallocator_slot: string
1721 @param iallocator_slot: the name of the opcode iallocator slot
1722 @type node_slot: string
1723 @param node_slot: the name of the opcode target node slot
1726 node = getattr(lu.op, node_slot, None)
1727 ialloc = getattr(lu.op, iallocator_slot, None)
1731 if node is not None and ialloc is not None:
1732 raise errors.OpPrereqError("Do not specify both, iallocator and node",
1734 elif ((node is None and ialloc is None) or
1735 ialloc == constants.DEFAULT_IALLOCATOR_SHORTCUT):
1736 default_iallocator = lu.cfg.GetDefaultIAllocator()
1737 if default_iallocator:
1738 setattr(lu.op, iallocator_slot, default_iallocator)
1740 raise errors.OpPrereqError("No iallocator or node given and no"
1741 " cluster-wide default iallocator found;"
1742 " please specify either an iallocator or a"
1743 " node, or set a cluster-wide default"
1744 " iallocator", errors.ECODE_INVAL)
1747 def _GetDefaultIAllocator(cfg, ialloc):
1748 """Decides on which iallocator to use.
1750 @type cfg: L{config.ConfigWriter}
1751 @param cfg: Cluster configuration object
1752 @type ialloc: string or None
1753 @param ialloc: Iallocator specified in opcode
1755 @return: Iallocator name
1759 # Use default iallocator
1760 ialloc = cfg.GetDefaultIAllocator()
1763 raise errors.OpPrereqError("No iallocator was specified, neither in the"
1764 " opcode nor as a cluster-wide default",
1770 def _CheckHostnameSane(lu, name):
1771 """Ensures that a given hostname resolves to a 'sane' name.
1773 The given name is required to be a prefix of the resolved hostname,
1774 to prevent accidental mismatches.
1776 @param lu: the logical unit on behalf of which we're checking
1777 @param name: the name we should resolve and check
1778 @return: the resolved hostname object
1781 hostname = netutils.GetHostname(name=name)
1782 if hostname.name != name:
1783 lu.LogInfo("Resolved given name '%s' to '%s'", name, hostname.name)
1784 if not utils.MatchNameComponent(name, [hostname.name]):
1785 raise errors.OpPrereqError(("Resolved hostname '%s' does not look the"
1786 " same as given hostname '%s'") %
1787 (hostname.name, name), errors.ECODE_INVAL)
1791 class LUClusterPostInit(LogicalUnit):
1792 """Logical unit for running hooks after cluster initialization.
1795 HPATH = "cluster-init"
1796 HTYPE = constants.HTYPE_CLUSTER
1798 def BuildHooksEnv(self):
1803 "OP_TARGET": self.cfg.GetClusterName(),
1806 def BuildHooksNodes(self):
1807 """Build hooks nodes.
1810 return ([], [self.cfg.GetMasterNode()])
1812 def Exec(self, feedback_fn):
1819 class LUClusterDestroy(LogicalUnit):
1820 """Logical unit for destroying the cluster.
1823 HPATH = "cluster-destroy"
1824 HTYPE = constants.HTYPE_CLUSTER
1826 def BuildHooksEnv(self):
1831 "OP_TARGET": self.cfg.GetClusterName(),
1834 def BuildHooksNodes(self):
1835 """Build hooks nodes.
1840 def CheckPrereq(self):
1841 """Check prerequisites.
1843 This checks whether the cluster is empty.
1845 Any errors are signaled by raising errors.OpPrereqError.
1848 master = self.cfg.GetMasterNode()
1850 nodelist = self.cfg.GetNodeList()
1851 if len(nodelist) != 1 or nodelist[0] != master:
1852 raise errors.OpPrereqError("There are still %d node(s) in"
1853 " this cluster." % (len(nodelist) - 1),
1855 instancelist = self.cfg.GetInstanceList()
1857 raise errors.OpPrereqError("There are still %d instance(s) in"
1858 " this cluster." % len(instancelist),
1861 def Exec(self, feedback_fn):
1862 """Destroys the cluster.
1865 master_params = self.cfg.GetMasterNetworkParameters()
1867 # Run post hooks on master node before it's removed
1868 _RunPostHook(self, master_params.name)
1870 ems = self.cfg.GetUseExternalMipScript()
1871 result = self.rpc.call_node_deactivate_master_ip(master_params.name,
1874 self.LogWarning("Error disabling the master IP address: %s",
1877 return master_params.name
1880 def _VerifyCertificate(filename):
1881 """Verifies a certificate for L{LUClusterVerifyConfig}.
1883 @type filename: string
1884 @param filename: Path to PEM file
1888 cert = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM,
1889 utils.ReadFile(filename))
1890 except Exception, err: # pylint: disable=W0703
1891 return (LUClusterVerifyConfig.ETYPE_ERROR,
1892 "Failed to load X509 certificate %s: %s" % (filename, err))
1895 utils.VerifyX509Certificate(cert, constants.SSL_CERT_EXPIRATION_WARN,
1896 constants.SSL_CERT_EXPIRATION_ERROR)
1899 fnamemsg = "While verifying %s: %s" % (filename, msg)
1904 return (None, fnamemsg)
1905 elif errcode == utils.CERT_WARNING:
1906 return (LUClusterVerifyConfig.ETYPE_WARNING, fnamemsg)
1907 elif errcode == utils.CERT_ERROR:
1908 return (LUClusterVerifyConfig.ETYPE_ERROR, fnamemsg)
1910 raise errors.ProgrammerError("Unhandled certificate error code %r" % errcode)
1913 def _GetAllHypervisorParameters(cluster, instances):
1914 """Compute the set of all hypervisor parameters.
1916 @type cluster: L{objects.Cluster}
1917 @param cluster: the cluster object
1918 @param instances: list of L{objects.Instance}
1919 @param instances: additional instances from which to obtain parameters
1920 @rtype: list of (origin, hypervisor, parameters)
1921 @return: a list with all parameters found, indicating the hypervisor they
1922 apply to, and the origin (can be "cluster", "os X", or "instance Y")
1927 for hv_name in cluster.enabled_hypervisors:
1928 hvp_data.append(("cluster", hv_name, cluster.GetHVDefaults(hv_name)))
1930 for os_name, os_hvp in cluster.os_hvp.items():
1931 for hv_name, hv_params in os_hvp.items():
1933 full_params = cluster.GetHVDefaults(hv_name, os_name=os_name)
1934 hvp_data.append(("os %s" % os_name, hv_name, full_params))
1936 # TODO: collapse identical parameter values in a single one
1937 for instance in instances:
1938 if instance.hvparams:
1939 hvp_data.append(("instance %s" % instance.name, instance.hypervisor,
1940 cluster.FillHV(instance)))
1945 class _VerifyErrors(object):
1946 """Mix-in for cluster/group verify LUs.
1948 It provides _Error and _ErrorIf, and updates the self.bad boolean. (Expects
1949 self.op and self._feedback_fn to be available.)
1953 ETYPE_FIELD = "code"
1954 ETYPE_ERROR = "ERROR"
1955 ETYPE_WARNING = "WARNING"
1957 def _Error(self, ecode, item, msg, *args, **kwargs):
1958 """Format an error message.
1960 Based on the opcode's error_codes parameter, either format a
1961 parseable error code, or a simpler error string.
1963 This must be called only from Exec and functions called from Exec.
1966 ltype = kwargs.get(self.ETYPE_FIELD, self.ETYPE_ERROR)
1967 itype, etxt, _ = ecode
1968 # first complete the msg
1971 # then format the whole message
1972 if self.op.error_codes: # This is a mix-in. pylint: disable=E1101
1973 msg = "%s:%s:%s:%s:%s" % (ltype, etxt, itype, item, msg)
1979 msg = "%s: %s%s: %s" % (ltype, itype, item, msg)
1980 # and finally report it via the feedback_fn
1981 self._feedback_fn(" - %s" % msg) # Mix-in. pylint: disable=E1101
1983 def _ErrorIf(self, cond, ecode, *args, **kwargs):
1984 """Log an error message if the passed condition is True.
1988 or self.op.debug_simulate_errors) # pylint: disable=E1101
1990 # If the error code is in the list of ignored errors, demote the error to a
1992 (_, etxt, _) = ecode
1993 if etxt in self.op.ignore_errors: # pylint: disable=E1101
1994 kwargs[self.ETYPE_FIELD] = self.ETYPE_WARNING
1997 self._Error(ecode, *args, **kwargs)
1999 # do not mark the operation as failed for WARN cases only
2000 if kwargs.get(self.ETYPE_FIELD, self.ETYPE_ERROR) == self.ETYPE_ERROR:
2001 self.bad = self.bad or cond
2004 class LUClusterVerify(NoHooksLU):
2005 """Submits all jobs necessary to verify the cluster.
2010 def ExpandNames(self):
2011 self.needed_locks = {}
2013 def Exec(self, feedback_fn):
2016 if self.op.group_name:
2017 groups = [self.op.group_name]
2018 depends_fn = lambda: None
2020 groups = self.cfg.GetNodeGroupList()
2022 # Verify global configuration
2024 opcodes.OpClusterVerifyConfig(ignore_errors=self.op.ignore_errors),
2027 # Always depend on global verification
2028 depends_fn = lambda: [(-len(jobs), [])]
2031 [opcodes.OpClusterVerifyGroup(group_name=group,
2032 ignore_errors=self.op.ignore_errors,
2033 depends=depends_fn())]
2034 for group in groups)
2036 # Fix up all parameters
2037 for op in itertools.chain(*jobs): # pylint: disable=W0142
2038 op.debug_simulate_errors = self.op.debug_simulate_errors
2039 op.verbose = self.op.verbose
2040 op.error_codes = self.op.error_codes
2042 op.skip_checks = self.op.skip_checks
2043 except AttributeError:
2044 assert not isinstance(op, opcodes.OpClusterVerifyGroup)
2046 return ResultWithJobs(jobs)
2049 class LUClusterVerifyConfig(NoHooksLU, _VerifyErrors):
2050 """Verifies the cluster config.
2055 def _VerifyHVP(self, hvp_data):
2056 """Verifies locally the syntax of the hypervisor parameters.
2059 for item, hv_name, hv_params in hvp_data:
2060 msg = ("hypervisor %s parameters syntax check (source %s): %%s" %
2063 hv_class = hypervisor.GetHypervisor(hv_name)
2064 utils.ForceDictType(hv_params, constants.HVS_PARAMETER_TYPES)
2065 hv_class.CheckParameterSyntax(hv_params)
2066 except errors.GenericError, err:
2067 self._ErrorIf(True, constants.CV_ECLUSTERCFG, None, msg % str(err))
2069 def ExpandNames(self):
2070 self.needed_locks = dict.fromkeys(locking.LEVELS, locking.ALL_SET)
2071 self.share_locks = _ShareAll()
2073 def CheckPrereq(self):
2074 """Check prerequisites.
2077 # Retrieve all information
2078 self.all_group_info = self.cfg.GetAllNodeGroupsInfo()
2079 self.all_node_info = self.cfg.GetAllNodesInfo()
2080 self.all_inst_info = self.cfg.GetAllInstancesInfo()
2082 def Exec(self, feedback_fn):
2083 """Verify integrity of cluster, performing various test on nodes.
2087 self._feedback_fn = feedback_fn
2089 feedback_fn("* Verifying cluster config")
2091 for msg in self.cfg.VerifyConfig():
2092 self._ErrorIf(True, constants.CV_ECLUSTERCFG, None, msg)
2094 feedback_fn("* Verifying cluster certificate files")
2096 for cert_filename in pathutils.ALL_CERT_FILES:
2097 (errcode, msg) = _VerifyCertificate(cert_filename)
2098 self._ErrorIf(errcode, constants.CV_ECLUSTERCERT, None, msg, code=errcode)
2100 feedback_fn("* Verifying hypervisor parameters")
2102 self._VerifyHVP(_GetAllHypervisorParameters(self.cfg.GetClusterInfo(),
2103 self.all_inst_info.values()))
2105 feedback_fn("* Verifying all nodes belong to an existing group")
2107 # We do this verification here because, should this bogus circumstance
2108 # occur, it would never be caught by VerifyGroup, which only acts on
2109 # nodes/instances reachable from existing node groups.
2111 dangling_nodes = set(node.name for node in self.all_node_info.values()
2112 if node.group not in self.all_group_info)
2114 dangling_instances = {}
2115 no_node_instances = []
2117 for inst in self.all_inst_info.values():
2118 if inst.primary_node in dangling_nodes:
2119 dangling_instances.setdefault(inst.primary_node, []).append(inst.name)
2120 elif inst.primary_node not in self.all_node_info:
2121 no_node_instances.append(inst.name)
2126 utils.CommaJoin(dangling_instances.get(node.name,
2128 for node in dangling_nodes]
2130 self._ErrorIf(bool(dangling_nodes), constants.CV_ECLUSTERDANGLINGNODES,
2132 "the following nodes (and their instances) belong to a non"
2133 " existing group: %s", utils.CommaJoin(pretty_dangling))
2135 self._ErrorIf(bool(no_node_instances), constants.CV_ECLUSTERDANGLINGINST,
2137 "the following instances have a non-existing primary-node:"
2138 " %s", utils.CommaJoin(no_node_instances))
2143 class LUClusterVerifyGroup(LogicalUnit, _VerifyErrors):
2144 """Verifies the status of a node group.
2147 HPATH = "cluster-verify"
2148 HTYPE = constants.HTYPE_CLUSTER
2151 _HOOKS_INDENT_RE = re.compile("^", re.M)
2153 class NodeImage(object):
2154 """A class representing the logical and physical status of a node.
2157 @ivar name: the node name to which this object refers
2158 @ivar volumes: a structure as returned from
2159 L{ganeti.backend.GetVolumeList} (runtime)
2160 @ivar instances: a list of running instances (runtime)
2161 @ivar pinst: list of configured primary instances (config)
2162 @ivar sinst: list of configured secondary instances (config)
2163 @ivar sbp: dictionary of {primary-node: list of instances} for all
2164 instances for which this node is secondary (config)
2165 @ivar mfree: free memory, as reported by hypervisor (runtime)
2166 @ivar dfree: free disk, as reported by the node (runtime)
2167 @ivar offline: the offline status (config)
2168 @type rpc_fail: boolean
2169 @ivar rpc_fail: whether the RPC verify call was successfull (overall,
2170 not whether the individual keys were correct) (runtime)
2171 @type lvm_fail: boolean
2172 @ivar lvm_fail: whether the RPC call didn't return valid LVM data
2173 @type hyp_fail: boolean
2174 @ivar hyp_fail: whether the RPC call didn't return the instance list
2175 @type ghost: boolean
2176 @ivar ghost: whether this is a known node or not (config)
2177 @type os_fail: boolean
2178 @ivar os_fail: whether the RPC call didn't return valid OS data
2180 @ivar oslist: list of OSes as diagnosed by DiagnoseOS
2181 @type vm_capable: boolean
2182 @ivar vm_capable: whether the node can host instances
2185 def __init__(self, offline=False, name=None, vm_capable=True):
2194 self.offline = offline
2195 self.vm_capable = vm_capable
2196 self.rpc_fail = False
2197 self.lvm_fail = False
2198 self.hyp_fail = False
2200 self.os_fail = False
2203 def ExpandNames(self):
2204 # This raises errors.OpPrereqError on its own:
2205 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
2207 # Get instances in node group; this is unsafe and needs verification later
2209 self.cfg.GetNodeGroupInstances(self.group_uuid, primary_only=True)
2211 self.needed_locks = {
2212 locking.LEVEL_INSTANCE: inst_names,
2213 locking.LEVEL_NODEGROUP: [self.group_uuid],
2214 locking.LEVEL_NODE: [],
2216 # This opcode is run by watcher every five minutes and acquires all nodes
2217 # for a group. It doesn't run for a long time, so it's better to acquire
2218 # the node allocation lock as well.
2219 locking.LEVEL_NODE_ALLOC: locking.ALL_SET,
2222 self.share_locks = _ShareAll()
2224 def DeclareLocks(self, level):
2225 if level == locking.LEVEL_NODE:
2226 # Get members of node group; this is unsafe and needs verification later
2227 nodes = set(self.cfg.GetNodeGroup(self.group_uuid).members)
2229 all_inst_info = self.cfg.GetAllInstancesInfo()
2231 # In Exec(), we warn about mirrored instances that have primary and
2232 # secondary living in separate node groups. To fully verify that
2233 # volumes for these instances are healthy, we will need to do an
2234 # extra call to their secondaries. We ensure here those nodes will
2236 for inst in self.owned_locks(locking.LEVEL_INSTANCE):
2237 # Important: access only the instances whose lock is owned
2238 if all_inst_info[inst].disk_template in constants.DTS_INT_MIRROR:
2239 nodes.update(all_inst_info[inst].secondary_nodes)
2241 self.needed_locks[locking.LEVEL_NODE] = nodes
2243 def CheckPrereq(self):
2244 assert self.group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP)
2245 self.group_info = self.cfg.GetNodeGroup(self.group_uuid)
2247 group_nodes = set(self.group_info.members)
2249 self.cfg.GetNodeGroupInstances(self.group_uuid, primary_only=True)
2252 group_nodes.difference(self.owned_locks(locking.LEVEL_NODE))
2254 unlocked_instances = \
2255 group_instances.difference(self.owned_locks(locking.LEVEL_INSTANCE))
2258 raise errors.OpPrereqError("Missing lock for nodes: %s" %
2259 utils.CommaJoin(unlocked_nodes),
2262 if unlocked_instances:
2263 raise errors.OpPrereqError("Missing lock for instances: %s" %
2264 utils.CommaJoin(unlocked_instances),
2267 self.all_node_info = self.cfg.GetAllNodesInfo()
2268 self.all_inst_info = self.cfg.GetAllInstancesInfo()
2270 self.my_node_names = utils.NiceSort(group_nodes)
2271 self.my_inst_names = utils.NiceSort(group_instances)
2273 self.my_node_info = dict((name, self.all_node_info[name])
2274 for name in self.my_node_names)
2276 self.my_inst_info = dict((name, self.all_inst_info[name])
2277 for name in self.my_inst_names)
2279 # We detect here the nodes that will need the extra RPC calls for verifying
2280 # split LV volumes; they should be locked.
2281 extra_lv_nodes = set()
2283 for inst in self.my_inst_info.values():
2284 if inst.disk_template in constants.DTS_INT_MIRROR:
2285 for nname in inst.all_nodes:
2286 if self.all_node_info[nname].group != self.group_uuid:
2287 extra_lv_nodes.add(nname)
2289 unlocked_lv_nodes = \
2290 extra_lv_nodes.difference(self.owned_locks(locking.LEVEL_NODE))
2292 if unlocked_lv_nodes:
2293 raise errors.OpPrereqError("Missing node locks for LV check: %s" %
2294 utils.CommaJoin(unlocked_lv_nodes),
2296 self.extra_lv_nodes = list(extra_lv_nodes)
2298 def _VerifyNode(self, ninfo, nresult):
2299 """Perform some basic validation on data returned from a node.
2301 - check the result data structure is well formed and has all the
2303 - check ganeti version
2305 @type ninfo: L{objects.Node}
2306 @param ninfo: the node to check
2307 @param nresult: the results from the node
2309 @return: whether overall this call was successful (and we can expect
2310 reasonable values in the respose)
2314 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2316 # main result, nresult should be a non-empty dict
2317 test = not nresult or not isinstance(nresult, dict)
2318 _ErrorIf(test, constants.CV_ENODERPC, node,
2319 "unable to verify node: no data returned")
2323 # compares ganeti version
2324 local_version = constants.PROTOCOL_VERSION
2325 remote_version = nresult.get("version", None)
2326 test = not (remote_version and
2327 isinstance(remote_version, (list, tuple)) and
2328 len(remote_version) == 2)
2329 _ErrorIf(test, constants.CV_ENODERPC, node,
2330 "connection to node returned invalid data")
2334 test = local_version != remote_version[0]
2335 _ErrorIf(test, constants.CV_ENODEVERSION, node,
2336 "incompatible protocol versions: master %s,"
2337 " node %s", local_version, remote_version[0])
2341 # node seems compatible, we can actually try to look into its results
2343 # full package version
2344 self._ErrorIf(constants.RELEASE_VERSION != remote_version[1],
2345 constants.CV_ENODEVERSION, node,
2346 "software version mismatch: master %s, node %s",
2347 constants.RELEASE_VERSION, remote_version[1],
2348 code=self.ETYPE_WARNING)
2350 hyp_result = nresult.get(constants.NV_HYPERVISOR, None)
2351 if ninfo.vm_capable and isinstance(hyp_result, dict):
2352 for hv_name, hv_result in hyp_result.iteritems():
2353 test = hv_result is not None
2354 _ErrorIf(test, constants.CV_ENODEHV, node,
2355 "hypervisor %s verify failure: '%s'", hv_name, hv_result)
2357 hvp_result = nresult.get(constants.NV_HVPARAMS, None)
2358 if ninfo.vm_capable and isinstance(hvp_result, list):
2359 for item, hv_name, hv_result in hvp_result:
2360 _ErrorIf(True, constants.CV_ENODEHV, node,
2361 "hypervisor %s parameter verify failure (source %s): %s",
2362 hv_name, item, hv_result)
2364 test = nresult.get(constants.NV_NODESETUP,
2365 ["Missing NODESETUP results"])
2366 _ErrorIf(test, constants.CV_ENODESETUP, node, "node setup error: %s",
2371 def _VerifyNodeTime(self, ninfo, nresult,
2372 nvinfo_starttime, nvinfo_endtime):
2373 """Check the node time.
2375 @type ninfo: L{objects.Node}
2376 @param ninfo: the node to check
2377 @param nresult: the remote results for the node
2378 @param nvinfo_starttime: the start time of the RPC call
2379 @param nvinfo_endtime: the end time of the RPC call
2383 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2385 ntime = nresult.get(constants.NV_TIME, None)
2387 ntime_merged = utils.MergeTime(ntime)
2388 except (ValueError, TypeError):
2389 _ErrorIf(True, constants.CV_ENODETIME, node, "Node returned invalid time")
2392 if ntime_merged < (nvinfo_starttime - constants.NODE_MAX_CLOCK_SKEW):
2393 ntime_diff = "%.01fs" % abs(nvinfo_starttime - ntime_merged)
2394 elif ntime_merged > (nvinfo_endtime + constants.NODE_MAX_CLOCK_SKEW):
2395 ntime_diff = "%.01fs" % abs(ntime_merged - nvinfo_endtime)
2399 _ErrorIf(ntime_diff is not None, constants.CV_ENODETIME, node,
2400 "Node time diverges by at least %s from master node time",
2403 def _VerifyNodeLVM(self, ninfo, nresult, vg_name):
2404 """Check the node LVM results.
2406 @type ninfo: L{objects.Node}
2407 @param ninfo: the node to check
2408 @param nresult: the remote results for the node
2409 @param vg_name: the configured VG name
2416 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2418 # checks vg existence and size > 20G
2419 vglist = nresult.get(constants.NV_VGLIST, None)
2421 _ErrorIf(test, constants.CV_ENODELVM, node, "unable to check volume groups")
2423 vgstatus = utils.CheckVolumeGroupSize(vglist, vg_name,
2424 constants.MIN_VG_SIZE)
2425 _ErrorIf(vgstatus, constants.CV_ENODELVM, node, vgstatus)
2428 pvlist = nresult.get(constants.NV_PVLIST, None)
2429 test = pvlist is None
2430 _ErrorIf(test, constants.CV_ENODELVM, node, "Can't get PV list from node")
2432 # check that ':' is not present in PV names, since it's a
2433 # special character for lvcreate (denotes the range of PEs to
2435 for _, pvname, owner_vg in pvlist:
2436 test = ":" in pvname
2437 _ErrorIf(test, constants.CV_ENODELVM, node,
2438 "Invalid character ':' in PV '%s' of VG '%s'",
2441 def _VerifyNodeBridges(self, ninfo, nresult, bridges):
2442 """Check the node bridges.
2444 @type ninfo: L{objects.Node}
2445 @param ninfo: the node to check
2446 @param nresult: the remote results for the node
2447 @param bridges: the expected list of bridges
2454 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2456 missing = nresult.get(constants.NV_BRIDGES, None)
2457 test = not isinstance(missing, list)
2458 _ErrorIf(test, constants.CV_ENODENET, node,
2459 "did not return valid bridge information")
2461 _ErrorIf(bool(missing), constants.CV_ENODENET, node,
2462 "missing bridges: %s" % utils.CommaJoin(sorted(missing)))
2464 def _VerifyNodeUserScripts(self, ninfo, nresult):
2465 """Check the results of user scripts presence and executability on the node
2467 @type ninfo: L{objects.Node}
2468 @param ninfo: the node to check
2469 @param nresult: the remote results for the node
2474 test = not constants.NV_USERSCRIPTS in nresult
2475 self._ErrorIf(test, constants.CV_ENODEUSERSCRIPTS, node,
2476 "did not return user scripts information")
2478 broken_scripts = nresult.get(constants.NV_USERSCRIPTS, None)
2480 self._ErrorIf(broken_scripts, constants.CV_ENODEUSERSCRIPTS, node,
2481 "user scripts not present or not executable: %s" %
2482 utils.CommaJoin(sorted(broken_scripts)))
2484 def _VerifyNodeNetwork(self, ninfo, nresult):
2485 """Check the node network connectivity results.
2487 @type ninfo: L{objects.Node}
2488 @param ninfo: the node to check
2489 @param nresult: the remote results for the node
2493 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2495 test = constants.NV_NODELIST not in nresult
2496 _ErrorIf(test, constants.CV_ENODESSH, node,
2497 "node hasn't returned node ssh connectivity data")
2499 if nresult[constants.NV_NODELIST]:
2500 for a_node, a_msg in nresult[constants.NV_NODELIST].items():
2501 _ErrorIf(True, constants.CV_ENODESSH, node,
2502 "ssh communication with node '%s': %s", a_node, a_msg)
2504 test = constants.NV_NODENETTEST not in nresult
2505 _ErrorIf(test, constants.CV_ENODENET, node,
2506 "node hasn't returned node tcp connectivity data")
2508 if nresult[constants.NV_NODENETTEST]:
2509 nlist = utils.NiceSort(nresult[constants.NV_NODENETTEST].keys())
2511 _ErrorIf(True, constants.CV_ENODENET, node,
2512 "tcp communication with node '%s': %s",
2513 anode, nresult[constants.NV_NODENETTEST][anode])
2515 test = constants.NV_MASTERIP not in nresult
2516 _ErrorIf(test, constants.CV_ENODENET, node,
2517 "node hasn't returned node master IP reachability data")
2519 if not nresult[constants.NV_MASTERIP]:
2520 if node == self.master_node:
2521 msg = "the master node cannot reach the master IP (not configured?)"
2523 msg = "cannot reach the master IP"
2524 _ErrorIf(True, constants.CV_ENODENET, node, msg)
2526 def _VerifyInstance(self, instance, instanceconfig, node_image,
2528 """Verify an instance.
2530 This function checks to see if the required block devices are
2531 available on the instance's node.
2534 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2535 node_current = instanceconfig.primary_node
2537 node_vol_should = {}
2538 instanceconfig.MapLVsByNode(node_vol_should)
2540 cluster = self.cfg.GetClusterInfo()
2541 ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster,
2543 err = _ComputeIPolicyInstanceViolation(ipolicy, instanceconfig)
2544 _ErrorIf(err, constants.CV_EINSTANCEPOLICY, instance, utils.CommaJoin(err),
2545 code=self.ETYPE_WARNING)
2547 for node in node_vol_should:
2548 n_img = node_image[node]
2549 if n_img.offline or n_img.rpc_fail or n_img.lvm_fail:
2550 # ignore missing volumes on offline or broken nodes
2552 for volume in node_vol_should[node]:
2553 test = volume not in n_img.volumes
2554 _ErrorIf(test, constants.CV_EINSTANCEMISSINGDISK, instance,
2555 "volume %s missing on node %s", volume, node)
2557 if instanceconfig.admin_state == constants.ADMINST_UP:
2558 pri_img = node_image[node_current]
2559 test = instance not in pri_img.instances and not pri_img.offline
2560 _ErrorIf(test, constants.CV_EINSTANCEDOWN, instance,
2561 "instance not running on its primary node %s",
2564 diskdata = [(nname, success, status, idx)
2565 for (nname, disks) in diskstatus.items()
2566 for idx, (success, status) in enumerate(disks)]
2568 for nname, success, bdev_status, idx in diskdata:
2569 # the 'ghost node' construction in Exec() ensures that we have a
2571 snode = node_image[nname]
2572 bad_snode = snode.ghost or snode.offline
2573 _ErrorIf(instanceconfig.admin_state == constants.ADMINST_UP and
2574 not success and not bad_snode,
2575 constants.CV_EINSTANCEFAULTYDISK, instance,
2576 "couldn't retrieve status for disk/%s on %s: %s",
2577 idx, nname, bdev_status)
2578 _ErrorIf((instanceconfig.admin_state == constants.ADMINST_UP and
2579 success and bdev_status.ldisk_status == constants.LDS_FAULTY),
2580 constants.CV_EINSTANCEFAULTYDISK, instance,
2581 "disk/%s on %s is faulty", idx, nname)
2583 def _VerifyOrphanVolumes(self, node_vol_should, node_image, reserved):
2584 """Verify if there are any unknown volumes in the cluster.
2586 The .os, .swap and backup volumes are ignored. All other volumes are
2587 reported as unknown.
2589 @type reserved: L{ganeti.utils.FieldSet}
2590 @param reserved: a FieldSet of reserved volume names
2593 for node, n_img in node_image.items():
2594 if (n_img.offline or n_img.rpc_fail or n_img.lvm_fail or
2595 self.all_node_info[node].group != self.group_uuid):
2596 # skip non-healthy nodes
2598 for volume in n_img.volumes:
2599 test = ((node not in node_vol_should or
2600 volume not in node_vol_should[node]) and
2601 not reserved.Matches(volume))
2602 self._ErrorIf(test, constants.CV_ENODEORPHANLV, node,
2603 "volume %s is unknown", volume)
2605 def _VerifyNPlusOneMemory(self, node_image, instance_cfg):
2606 """Verify N+1 Memory Resilience.
2608 Check that if one single node dies we can still start all the
2609 instances it was primary for.
2612 cluster_info = self.cfg.GetClusterInfo()
2613 for node, n_img in node_image.items():
2614 # This code checks that every node which is now listed as
2615 # secondary has enough memory to host all instances it is
2616 # supposed to should a single other node in the cluster fail.
2617 # FIXME: not ready for failover to an arbitrary node
2618 # FIXME: does not support file-backed instances
2619 # WARNING: we currently take into account down instances as well
2620 # as up ones, considering that even if they're down someone
2621 # might want to start them even in the event of a node failure.
2622 if n_img.offline or self.all_node_info[node].group != self.group_uuid:
2623 # we're skipping nodes marked offline and nodes in other groups from
2624 # the N+1 warning, since most likely we don't have good memory
2625 # infromation from them; we already list instances living on such
2626 # nodes, and that's enough warning
2628 #TODO(dynmem): also consider ballooning out other instances
2629 for prinode, instances in n_img.sbp.items():
2631 for instance in instances:
2632 bep = cluster_info.FillBE(instance_cfg[instance])
2633 if bep[constants.BE_AUTO_BALANCE]:
2634 needed_mem += bep[constants.BE_MINMEM]
2635 test = n_img.mfree < needed_mem
2636 self._ErrorIf(test, constants.CV_ENODEN1, node,
2637 "not enough memory to accomodate instance failovers"
2638 " should node %s fail (%dMiB needed, %dMiB available)",
2639 prinode, needed_mem, n_img.mfree)
2642 def _VerifyFiles(cls, errorif, nodeinfo, master_node, all_nvinfo,
2643 (files_all, files_opt, files_mc, files_vm)):
2644 """Verifies file checksums collected from all nodes.
2646 @param errorif: Callback for reporting errors
2647 @param nodeinfo: List of L{objects.Node} objects
2648 @param master_node: Name of master node
2649 @param all_nvinfo: RPC results
2652 # Define functions determining which nodes to consider for a file
2655 (files_mc, lambda node: (node.master_candidate or
2656 node.name == master_node)),
2657 (files_vm, lambda node: node.vm_capable),
2660 # Build mapping from filename to list of nodes which should have the file
2662 for (files, fn) in files2nodefn:
2664 filenodes = nodeinfo
2666 filenodes = filter(fn, nodeinfo)
2667 nodefiles.update((filename,
2668 frozenset(map(operator.attrgetter("name"), filenodes)))
2669 for filename in files)
2671 assert set(nodefiles) == (files_all | files_mc | files_vm)
2673 fileinfo = dict((filename, {}) for filename in nodefiles)
2674 ignore_nodes = set()
2676 for node in nodeinfo:
2678 ignore_nodes.add(node.name)
2681 nresult = all_nvinfo[node.name]
2683 if nresult.fail_msg or not nresult.payload:
2686 fingerprints = nresult.payload.get(constants.NV_FILELIST, None)
2687 node_files = dict((vcluster.LocalizeVirtualPath(key), value)
2688 for (key, value) in fingerprints.items())
2691 test = not (node_files and isinstance(node_files, dict))
2692 errorif(test, constants.CV_ENODEFILECHECK, node.name,
2693 "Node did not return file checksum data")
2695 ignore_nodes.add(node.name)
2698 # Build per-checksum mapping from filename to nodes having it
2699 for (filename, checksum) in node_files.items():
2700 assert filename in nodefiles
2701 fileinfo[filename].setdefault(checksum, set()).add(node.name)
2703 for (filename, checksums) in fileinfo.items():
2704 assert compat.all(len(i) > 10 for i in checksums), "Invalid checksum"
2706 # Nodes having the file
2707 with_file = frozenset(node_name
2708 for nodes in fileinfo[filename].values()
2709 for node_name in nodes) - ignore_nodes
2711 expected_nodes = nodefiles[filename] - ignore_nodes
2713 # Nodes missing file
2714 missing_file = expected_nodes - with_file
2716 if filename in files_opt:
2718 errorif(missing_file and missing_file != expected_nodes,
2719 constants.CV_ECLUSTERFILECHECK, None,
2720 "File %s is optional, but it must exist on all or no"
2721 " nodes (not found on %s)",
2722 filename, utils.CommaJoin(utils.NiceSort(missing_file)))
2724 errorif(missing_file, constants.CV_ECLUSTERFILECHECK, None,
2725 "File %s is missing from node(s) %s", filename,
2726 utils.CommaJoin(utils.NiceSort(missing_file)))
2728 # Warn if a node has a file it shouldn't
2729 unexpected = with_file - expected_nodes
2731 constants.CV_ECLUSTERFILECHECK, None,
2732 "File %s should not exist on node(s) %s",
2733 filename, utils.CommaJoin(utils.NiceSort(unexpected)))
2735 # See if there are multiple versions of the file
2736 test = len(checksums) > 1
2738 variants = ["variant %s on %s" %
2739 (idx + 1, utils.CommaJoin(utils.NiceSort(nodes)))
2740 for (idx, (checksum, nodes)) in
2741 enumerate(sorted(checksums.items()))]
2745 errorif(test, constants.CV_ECLUSTERFILECHECK, None,
2746 "File %s found with %s different checksums (%s)",
2747 filename, len(checksums), "; ".join(variants))
2749 def _VerifyNodeDrbd(self, ninfo, nresult, instanceinfo, drbd_helper,
2751 """Verifies and the node DRBD status.
2753 @type ninfo: L{objects.Node}
2754 @param ninfo: the node to check
2755 @param nresult: the remote results for the node
2756 @param instanceinfo: the dict of instances
2757 @param drbd_helper: the configured DRBD usermode helper
2758 @param drbd_map: the DRBD map as returned by
2759 L{ganeti.config.ConfigWriter.ComputeDRBDMap}
2763 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2766 helper_result = nresult.get(constants.NV_DRBDHELPER, None)
2767 test = (helper_result is None)
2768 _ErrorIf(test, constants.CV_ENODEDRBDHELPER, node,
2769 "no drbd usermode helper returned")
2771 status, payload = helper_result
2773 _ErrorIf(test, constants.CV_ENODEDRBDHELPER, node,
2774 "drbd usermode helper check unsuccessful: %s", payload)
2775 test = status and (payload != drbd_helper)
2776 _ErrorIf(test, constants.CV_ENODEDRBDHELPER, node,
2777 "wrong drbd usermode helper: %s", payload)
2779 # compute the DRBD minors
2781 for minor, instance in drbd_map[node].items():
2782 test = instance not in instanceinfo
2783 _ErrorIf(test, constants.CV_ECLUSTERCFG, None,
2784 "ghost instance '%s' in temporary DRBD map", instance)
2785 # ghost instance should not be running, but otherwise we
2786 # don't give double warnings (both ghost instance and
2787 # unallocated minor in use)
2789 node_drbd[minor] = (instance, False)
2791 instance = instanceinfo[instance]
2792 node_drbd[minor] = (instance.name,
2793 instance.admin_state == constants.ADMINST_UP)
2795 # and now check them
2796 used_minors = nresult.get(constants.NV_DRBDLIST, [])
2797 test = not isinstance(used_minors, (tuple, list))
2798 _ErrorIf(test, constants.CV_ENODEDRBD, node,
2799 "cannot parse drbd status file: %s", str(used_minors))
2801 # we cannot check drbd status
2804 for minor, (iname, must_exist) in node_drbd.items():
2805 test = minor not in used_minors and must_exist
2806 _ErrorIf(test, constants.CV_ENODEDRBD, node,
2807 "drbd minor %d of instance %s is not active", minor, iname)
2808 for minor in used_minors:
2809 test = minor not in node_drbd
2810 _ErrorIf(test, constants.CV_ENODEDRBD, node,
2811 "unallocated drbd minor %d is in use", minor)
2813 def _UpdateNodeOS(self, ninfo, nresult, nimg):
2814 """Builds the node OS structures.
2816 @type ninfo: L{objects.Node}
2817 @param ninfo: the node to check
2818 @param nresult: the remote results for the node
2819 @param nimg: the node image object
2823 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2825 remote_os = nresult.get(constants.NV_OSLIST, None)
2826 test = (not isinstance(remote_os, list) or
2827 not compat.all(isinstance(v, list) and len(v) == 7
2828 for v in remote_os))
2830 _ErrorIf(test, constants.CV_ENODEOS, node,
2831 "node hasn't returned valid OS data")
2840 for (name, os_path, status, diagnose,
2841 variants, parameters, api_ver) in nresult[constants.NV_OSLIST]:
2843 if name not in os_dict:
2846 # parameters is a list of lists instead of list of tuples due to
2847 # JSON lacking a real tuple type, fix it:
2848 parameters = [tuple(v) for v in parameters]
2849 os_dict[name].append((os_path, status, diagnose,
2850 set(variants), set(parameters), set(api_ver)))
2852 nimg.oslist = os_dict
2854 def _VerifyNodeOS(self, ninfo, nimg, base):
2855 """Verifies the node OS list.
2857 @type ninfo: L{objects.Node}
2858 @param ninfo: the node to check
2859 @param nimg: the node image object
2860 @param base: the 'template' node we match against (e.g. from the master)
2864 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2866 assert not nimg.os_fail, "Entered _VerifyNodeOS with failed OS rpc?"
2868 beautify_params = lambda l: ["%s: %s" % (k, v) for (k, v) in l]
2869 for os_name, os_data in nimg.oslist.items():
2870 assert os_data, "Empty OS status for OS %s?!" % os_name
2871 f_path, f_status, f_diag, f_var, f_param, f_api = os_data[0]
2872 _ErrorIf(not f_status, constants.CV_ENODEOS, node,
2873 "Invalid OS %s (located at %s): %s", os_name, f_path, f_diag)
2874 _ErrorIf(len(os_data) > 1, constants.CV_ENODEOS, node,
2875 "OS '%s' has multiple entries (first one shadows the rest): %s",
2876 os_name, utils.CommaJoin([v[0] for v in os_data]))
2877 # comparisons with the 'base' image
2878 test = os_name not in base.oslist
2879 _ErrorIf(test, constants.CV_ENODEOS, node,
2880 "Extra OS %s not present on reference node (%s)",
2884 assert base.oslist[os_name], "Base node has empty OS status?"
2885 _, b_status, _, b_var, b_param, b_api = base.oslist[os_name][0]
2887 # base OS is invalid, skipping
2889 for kind, a, b in [("API version", f_api, b_api),
2890 ("variants list", f_var, b_var),
2891 ("parameters", beautify_params(f_param),
2892 beautify_params(b_param))]:
2893 _ErrorIf(a != b, constants.CV_ENODEOS, node,
2894 "OS %s for %s differs from reference node %s: [%s] vs. [%s]",
2895 kind, os_name, base.name,
2896 utils.CommaJoin(sorted(a)), utils.CommaJoin(sorted(b)))
2898 # check any missing OSes
2899 missing = set(base.oslist.keys()).difference(nimg.oslist.keys())
2900 _ErrorIf(missing, constants.CV_ENODEOS, node,
2901 "OSes present on reference node %s but missing on this node: %s",
2902 base.name, utils.CommaJoin(missing))
2904 def _VerifyFileStoragePaths(self, ninfo, nresult, is_master):
2905 """Verifies paths in L{pathutils.FILE_STORAGE_PATHS_FILE}.
2907 @type ninfo: L{objects.Node}
2908 @param ninfo: the node to check
2909 @param nresult: the remote results for the node
2910 @type is_master: bool
2911 @param is_master: Whether node is the master node
2917 (constants.ENABLE_FILE_STORAGE or
2918 constants.ENABLE_SHARED_FILE_STORAGE)):
2920 fspaths = nresult[constants.NV_FILE_STORAGE_PATHS]
2922 # This should never happen
2923 self._ErrorIf(True, constants.CV_ENODEFILESTORAGEPATHS, node,
2924 "Node did not return forbidden file storage paths")
2926 self._ErrorIf(fspaths, constants.CV_ENODEFILESTORAGEPATHS, node,
2927 "Found forbidden file storage paths: %s",
2928 utils.CommaJoin(fspaths))
2930 self._ErrorIf(constants.NV_FILE_STORAGE_PATHS in nresult,
2931 constants.CV_ENODEFILESTORAGEPATHS, node,
2932 "Node should not have returned forbidden file storage"
2935 def _VerifyOob(self, ninfo, nresult):
2936 """Verifies out of band functionality of a node.
2938 @type ninfo: L{objects.Node}
2939 @param ninfo: the node to check
2940 @param nresult: the remote results for the node
2944 # We just have to verify the paths on master and/or master candidates
2945 # as the oob helper is invoked on the master
2946 if ((ninfo.master_candidate or ninfo.master_capable) and
2947 constants.NV_OOB_PATHS in nresult):
2948 for path_result in nresult[constants.NV_OOB_PATHS]:
2949 self._ErrorIf(path_result, constants.CV_ENODEOOBPATH, node, path_result)
2951 def _UpdateNodeVolumes(self, ninfo, nresult, nimg, vg_name):
2952 """Verifies and updates the node volume data.
2954 This function will update a L{NodeImage}'s internal structures
2955 with data from the remote call.
2957 @type ninfo: L{objects.Node}
2958 @param ninfo: the node to check
2959 @param nresult: the remote results for the node
2960 @param nimg: the node image object
2961 @param vg_name: the configured VG name
2965 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2967 nimg.lvm_fail = True
2968 lvdata = nresult.get(constants.NV_LVLIST, "Missing LV data")
2971 elif isinstance(lvdata, basestring):
2972 _ErrorIf(True, constants.CV_ENODELVM, node, "LVM problem on node: %s",
2973 utils.SafeEncode(lvdata))
2974 elif not isinstance(lvdata, dict):
2975 _ErrorIf(True, constants.CV_ENODELVM, node,
2976 "rpc call to node failed (lvlist)")
2978 nimg.volumes = lvdata
2979 nimg.lvm_fail = False
2981 def _UpdateNodeInstances(self, ninfo, nresult, nimg):
2982 """Verifies and updates the node instance list.
2984 If the listing was successful, then updates this node's instance
2985 list. Otherwise, it marks the RPC call as failed for the instance
2988 @type ninfo: L{objects.Node}
2989 @param ninfo: the node to check
2990 @param nresult: the remote results for the node
2991 @param nimg: the node image object
2994 idata = nresult.get(constants.NV_INSTANCELIST, None)
2995 test = not isinstance(idata, list)
2996 self._ErrorIf(test, constants.CV_ENODEHV, ninfo.name,
2997 "rpc call to node failed (instancelist): %s",
2998 utils.SafeEncode(str(idata)))
3000 nimg.hyp_fail = True
3002 nimg.instances = idata
3004 def _UpdateNodeInfo(self, ninfo, nresult, nimg, vg_name):
3005 """Verifies and computes a node information map
3007 @type ninfo: L{objects.Node}
3008 @param ninfo: the node to check
3009 @param nresult: the remote results for the node
3010 @param nimg: the node image object
3011 @param vg_name: the configured VG name
3015 _ErrorIf = self._ErrorIf # pylint: disable=C0103
3017 # try to read free memory (from the hypervisor)
3018 hv_info = nresult.get(constants.NV_HVINFO, None)
3019 test = not isinstance(hv_info, dict) or "memory_free" not in hv_info
3020 _ErrorIf(test, constants.CV_ENODEHV, node,
3021 "rpc call to node failed (hvinfo)")
3024 nimg.mfree = int(hv_info["memory_free"])
3025 except (ValueError, TypeError):
3026 _ErrorIf(True, constants.CV_ENODERPC, node,
3027 "node returned invalid nodeinfo, check hypervisor")
3029 # FIXME: devise a free space model for file based instances as well
3030 if vg_name is not None:
3031 test = (constants.NV_VGLIST not in nresult or
3032 vg_name not in nresult[constants.NV_VGLIST])
3033 _ErrorIf(test, constants.CV_ENODELVM, node,
3034 "node didn't return data for the volume group '%s'"
3035 " - it is either missing or broken", vg_name)
3038 nimg.dfree = int(nresult[constants.NV_VGLIST][vg_name])
3039 except (ValueError, TypeError):
3040 _ErrorIf(True, constants.CV_ENODERPC, node,
3041 "node returned invalid LVM info, check LVM status")
3043 def _CollectDiskInfo(self, nodelist, node_image, instanceinfo):
3044 """Gets per-disk status information for all instances.
3046 @type nodelist: list of strings
3047 @param nodelist: Node names
3048 @type node_image: dict of (name, L{objects.Node})
3049 @param node_image: Node objects
3050 @type instanceinfo: dict of (name, L{objects.Instance})
3051 @param instanceinfo: Instance objects
3052 @rtype: {instance: {node: [(succes, payload)]}}
3053 @return: a dictionary of per-instance dictionaries with nodes as
3054 keys and disk information as values; the disk information is a
3055 list of tuples (success, payload)
3058 _ErrorIf = self._ErrorIf # pylint: disable=C0103
3061 node_disks_devonly = {}
3062 diskless_instances = set()
3063 diskless = constants.DT_DISKLESS
3065 for nname in nodelist:
3066 node_instances = list(itertools.chain(node_image[nname].pinst,
3067 node_image[nname].sinst))
3068 diskless_instances.update(inst for inst in node_instances
3069 if instanceinfo[inst].disk_template == diskless)
3070 disks = [(inst, disk)
3071 for inst in node_instances
3072 for disk in instanceinfo[inst].disks]
3075 # No need to collect data
3078 node_disks[nname] = disks
3080 # _AnnotateDiskParams makes already copies of the disks
3082 for (inst, dev) in disks:
3083 (anno_disk,) = _AnnotateDiskParams(instanceinfo[inst], [dev], self.cfg)
3084 self.cfg.SetDiskID(anno_disk, nname)
3085 devonly.append(anno_disk)
3087 node_disks_devonly[nname] = devonly
3089 assert len(node_disks) == len(node_disks_devonly)
3091 # Collect data from all nodes with disks
3092 result = self.rpc.call_blockdev_getmirrorstatus_multi(node_disks.keys(),
3095 assert len(result) == len(node_disks)
3099 for (nname, nres) in result.items():
3100 disks = node_disks[nname]
3103 # No data from this node
3104 data = len(disks) * [(False, "node offline")]
3107 _ErrorIf(msg, constants.CV_ENODERPC, nname,
3108 "while getting disk information: %s", msg)
3110 # No data from this node
3111 data = len(disks) * [(False, msg)]
3114 for idx, i in enumerate(nres.payload):
3115 if isinstance(i, (tuple, list)) and len(i) == 2:
3118 logging.warning("Invalid result from node %s, entry %d: %s",
3120 data.append((False, "Invalid result from the remote node"))
3122 for ((inst, _), status) in zip(disks, data):
3123 instdisk.setdefault(inst, {}).setdefault(nname, []).append(status)
3125 # Add empty entries for diskless instances.
3126 for inst in diskless_instances:
3127 assert inst not in instdisk
3130 assert compat.all(len(statuses) == len(instanceinfo[inst].disks) and
3131 len(nnames) <= len(instanceinfo[inst].all_nodes) and
3132 compat.all(isinstance(s, (tuple, list)) and
3133 len(s) == 2 for s in statuses)
3134 for inst, nnames in instdisk.items()
3135 for nname, statuses in nnames.items())
3136 assert set(instdisk) == set(instanceinfo), "instdisk consistency failure"
3141 def _SshNodeSelector(group_uuid, all_nodes):
3142 """Create endless iterators for all potential SSH check hosts.
3145 nodes = [node for node in all_nodes
3146 if (node.group != group_uuid and
3148 keyfunc = operator.attrgetter("group")
3150 return map(itertools.cycle,
3151 [sorted(map(operator.attrgetter("name"), names))
3152 for _, names in itertools.groupby(sorted(nodes, key=keyfunc),
3156 def _SelectSshCheckNodes(cls, group_nodes, group_uuid, all_nodes):
3157 """Choose which nodes should talk to which other nodes.
3159 We will make nodes contact all nodes in their group, and one node from
3162 @warning: This algorithm has a known issue if one node group is much
3163 smaller than others (e.g. just one node). In such a case all other
3164 nodes will talk to the single node.
3167 online_nodes = sorted(node.name for node in group_nodes if not node.offline)
3168 sel = cls._SshNodeSelector(group_uuid, all_nodes)
3170 return (online_nodes,
3171 dict((name, sorted([i.next() for i in sel]))
3172 for name in online_nodes))
3174 def BuildHooksEnv(self):
3177 Cluster-Verify hooks just ran in the post phase and their failure makes
3178 the output be logged in the verify output and the verification to fail.
3182 "CLUSTER_TAGS": " ".join(self.cfg.GetClusterInfo().GetTags()),
3185 env.update(("NODE_TAGS_%s" % node.name, " ".join(node.GetTags()))
3186 for node in self.my_node_info.values())
3190 def BuildHooksNodes(self):
3191 """Build hooks nodes.
3194 return ([], self.my_node_names)
3196 def Exec(self, feedback_fn):
3197 """Verify integrity of the node group, performing various test on nodes.
3200 # This method has too many local variables. pylint: disable=R0914
3201 feedback_fn("* Verifying group '%s'" % self.group_info.name)
3203 if not self.my_node_names:
3205 feedback_fn("* Empty node group, skipping verification")
3209 _ErrorIf = self._ErrorIf # pylint: disable=C0103
3210 verbose = self.op.verbose
3211 self._feedback_fn = feedback_fn
3213 vg_name = self.cfg.GetVGName()
3214 drbd_helper = self.cfg.GetDRBDHelper()
3215 cluster = self.cfg.GetClusterInfo()
3216 groupinfo = self.cfg.GetAllNodeGroupsInfo()
3217 hypervisors = cluster.enabled_hypervisors
3218 node_data_list = [self.my_node_info[name] for name in self.my_node_names]
3220 i_non_redundant = [] # Non redundant instances
3221 i_non_a_balanced = [] # Non auto-balanced instances
3222 i_offline = 0 # Count of offline instances
3223 n_offline = 0 # Count of offline nodes
3224 n_drained = 0 # Count of nodes being drained
3225 node_vol_should = {}
3227 # FIXME: verify OS list
3230 filemap = _ComputeAncillaryFiles(cluster, False)
3232 # do local checksums
3233 master_node = self.master_node = self.cfg.GetMasterNode()
3234 master_ip = self.cfg.GetMasterIP()
3236 feedback_fn("* Gathering data (%d nodes)" % len(self.my_node_names))
3239 if self.cfg.GetUseExternalMipScript():
3240 user_scripts.append(pathutils.EXTERNAL_MASTER_SETUP_SCRIPT)
3242 node_verify_param = {
3243 constants.NV_FILELIST:
3244 map(vcluster.MakeVirtualPath,
3245 utils.UniqueSequence(filename
3246 for files in filemap
3247 for filename in files)),
3248 constants.NV_NODELIST:
3249 self._SelectSshCheckNodes(node_data_list, self.group_uuid,
3250 self.all_node_info.values()),
3251 constants.NV_HYPERVISOR: hypervisors,
3252 constants.NV_HVPARAMS:
3253 _GetAllHypervisorParameters(cluster, self.all_inst_info.values()),
3254 constants.NV_NODENETTEST: [(node.name, node.primary_ip, node.secondary_ip)
3255 for node in node_data_list
3256 if not node.offline],
3257 constants.NV_INSTANCELIST: hypervisors,
3258 constants.NV_VERSION: None,
3259 constants.NV_HVINFO: self.cfg.GetHypervisorType(),
3260 constants.NV_NODESETUP: None,
3261 constants.NV_TIME: None,
3262 constants.NV_MASTERIP: (master_node, master_ip),
3263 constants.NV_OSLIST: None,
3264 constants.NV_VMNODES: self.cfg.GetNonVmCapableNodeList(),
3265 constants.NV_USERSCRIPTS: user_scripts,
3268 if vg_name is not None:
3269 node_verify_param[constants.NV_VGLIST] = None
3270 node_verify_param[constants.NV_LVLIST] = vg_name
3271 node_verify_param[constants.NV_PVLIST] = [vg_name]
3274 node_verify_param[constants.NV_DRBDLIST] = None
3275 node_verify_param[constants.NV_DRBDHELPER] = drbd_helper
3277 if constants.ENABLE_FILE_STORAGE or constants.ENABLE_SHARED_FILE_STORAGE:
3278 # Load file storage paths only from master node
3279 node_verify_param[constants.NV_FILE_STORAGE_PATHS] = master_node
3282 # FIXME: this needs to be changed per node-group, not cluster-wide
3284 default_nicpp = cluster.nicparams[constants.PP_DEFAULT]
3285 if default_nicpp[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
3286 bridges.add(default_nicpp[constants.NIC_LINK])
3287 for instance in self.my_inst_info.values():
3288 for nic in instance.nics:
3289 full_nic = cluster.SimpleFillNIC(nic.nicparams)
3290 if full_nic[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
3291 bridges.add(full_nic[constants.NIC_LINK])
3294 node_verify_param[constants.NV_BRIDGES] = list(bridges)
3296 # Build our expected cluster state
3297 node_image = dict((node.name, self.NodeImage(offline=node.offline,
3299 vm_capable=node.vm_capable))
3300 for node in node_data_list)
3304 for node in self.all_node_info.values():
3305 path = _SupportsOob(self.cfg, node)
3306 if path and path not in oob_paths:
3307 oob_paths.append(path)
3310 node_verify_param[constants.NV_OOB_PATHS] = oob_paths
3312 for instance in self.my_inst_names:
3313 inst_config = self.my_inst_info[instance]
3314 if inst_config.admin_state == constants.ADMINST_OFFLINE:
3317 for nname in inst_config.all_nodes:
3318 if nname not in node_image:
3319 gnode = self.NodeImage(name=nname)
3320 gnode.ghost = (nname not in self.all_node_info)
3321 node_image[nname] = gnode
3323 inst_config.MapLVsByNode(node_vol_should)
3325 pnode = inst_config.primary_node
3326 node_image[pnode].pinst.append(instance)
3328 for snode in inst_config.secondary_nodes:
3329 nimg = node_image[snode]
3330 nimg.sinst.append(instance)
3331 if pnode not in nimg.sbp:
3332 nimg.sbp[pnode] = []
3333 nimg.sbp[pnode].append(instance)
3335 # At this point, we have the in-memory data structures complete,
3336 # except for the runtime information, which we'll gather next
3338 # Due to the way our RPC system works, exact response times cannot be
3339 # guaranteed (e.g. a broken node could run into a timeout). By keeping the
3340 # time before and after executing the request, we can at least have a time
3342 nvinfo_starttime = time.time()
3343 all_nvinfo = self.rpc.call_node_verify(self.my_node_names,
3345 self.cfg.GetClusterName())
3346 nvinfo_endtime = time.time()
3348 if self.extra_lv_nodes and vg_name is not None:
3350 self.rpc.call_node_verify(self.extra_lv_nodes,
3351 {constants.NV_LVLIST: vg_name},
3352 self.cfg.GetClusterName())
3354 extra_lv_nvinfo = {}
3356 all_drbd_map = self.cfg.ComputeDRBDMap()
3358 feedback_fn("* Gathering disk information (%s nodes)" %
3359 len(self.my_node_names))
3360 instdisk = self._CollectDiskInfo(self.my_node_names, node_image,
3363 feedback_fn("* Verifying configuration file consistency")
3365 # If not all nodes are being checked, we need to make sure the master node
3366 # and a non-checked vm_capable node are in the list.
3367 absent_nodes = set(self.all_node_info).difference(self.my_node_info)
3369 vf_nvinfo = all_nvinfo.copy()
3370 vf_node_info = list(self.my_node_info.values())
3371 additional_nodes = []
3372 if master_node not in self.my_node_info:
3373 additional_nodes.append(master_node)
3374 vf_node_info.append(self.all_node_info[master_node])
3375 # Add the first vm_capable node we find which is not included,
3376 # excluding the master node (which we already have)
3377 for node in absent_nodes:
3378 nodeinfo = self.all_node_info[node]
3379 if (nodeinfo.vm_capable and not nodeinfo.offline and
3380 node != master_node):
3381 additional_nodes.append(node)
3382 vf_node_info.append(self.all_node_info[node])
3384 key = constants.NV_FILELIST
3385 vf_nvinfo.update(self.rpc.call_node_verify(additional_nodes,
3386 {key: node_verify_param[key]},
3387 self.cfg.GetClusterName()))
3389 vf_nvinfo = all_nvinfo
3390 vf_node_info = self.my_node_info.values()
3392 self._VerifyFiles(_ErrorIf, vf_node_info, master_node, vf_nvinfo, filemap)
3394 feedback_fn("* Verifying node status")
3398 for node_i in node_data_list:
3400 nimg = node_image[node]
3404 feedback_fn("* Skipping offline node %s" % (node,))
3408 if node == master_node:
3410 elif node_i.master_candidate:
3411 ntype = "master candidate"
3412 elif node_i.drained:
3418 feedback_fn("* Verifying node %s (%s)" % (node, ntype))
3420 msg = all_nvinfo[node].fail_msg
3421 _ErrorIf(msg, constants.CV_ENODERPC, node, "while contacting node: %s",
3424 nimg.rpc_fail = True
3427 nresult = all_nvinfo[node].payload
3429 nimg.call_ok = self._VerifyNode(node_i, nresult)
3430 self._VerifyNodeTime(node_i, nresult, nvinfo_starttime, nvinfo_endtime)
3431 self._VerifyNodeNetwork(node_i, nresult)
3432 self._VerifyNodeUserScripts(node_i, nresult)
3433 self._VerifyOob(node_i, nresult)
3434 self._VerifyFileStoragePaths(node_i, nresult,
3435 node == master_node)
3438 self._VerifyNodeLVM(node_i, nresult, vg_name)
3439 self._VerifyNodeDrbd(node_i, nresult, self.all_inst_info, drbd_helper,
3442 self._UpdateNodeVolumes(node_i, nresult, nimg, vg_name)
3443 self._UpdateNodeInstances(node_i, nresult, nimg)
3444 self._UpdateNodeInfo(node_i, nresult, nimg, vg_name)
3445 self._UpdateNodeOS(node_i, nresult, nimg)
3447 if not nimg.os_fail:
3448 if refos_img is None:
3450 self._VerifyNodeOS(node_i, nimg, refos_img)
3451 self._VerifyNodeBridges(node_i, nresult, bridges)
3453 # Check whether all running instancies are primary for the node. (This
3454 # can no longer be done from _VerifyInstance below, since some of the
3455 # wrong instances could be from other node groups.)
3456 non_primary_inst = set(nimg.instances).difference(nimg.pinst)
3458 for inst in non_primary_inst:
3459 test = inst in self.all_inst_info
3460 _ErrorIf(test, constants.CV_EINSTANCEWRONGNODE, inst,
3461 "instance should not run on node %s", node_i.name)
3462 _ErrorIf(not test, constants.CV_ENODEORPHANINSTANCE, node_i.name,
3463 "node is running unknown instance %s", inst)
3465 for node, result in extra_lv_nvinfo.items():
3466 self._UpdateNodeVolumes(self.all_node_info[node], result.payload,
3467 node_image[node], vg_name)
3469 feedback_fn("* Verifying instance status")
3470 for instance in self.my_inst_names:
3472 feedback_fn("* Verifying instance %s" % instance)
3473 inst_config = self.my_inst_info[instance]
3474 self._VerifyInstance(instance, inst_config, node_image,
3476 inst_nodes_offline = []
3478 pnode = inst_config.primary_node
3479 pnode_img = node_image[pnode]
3480 _ErrorIf(pnode_img.rpc_fail and not pnode_img.offline,
3481 constants.CV_ENODERPC, pnode, "instance %s, connection to"
3482 " primary node failed", instance)
3484 _ErrorIf(inst_config.admin_state == constants.ADMINST_UP and
3486 constants.CV_EINSTANCEBADNODE, instance,
3487 "instance is marked as running and lives on offline node %s",
3488 inst_config.primary_node)
3490 # If the instance is non-redundant we cannot survive losing its primary
3491 # node, so we are not N+1 compliant.
3492 if inst_config.disk_template not in constants.DTS_MIRRORED:
3493 i_non_redundant.append(instance)
3495 _ErrorIf(len(inst_config.secondary_nodes) > 1,
3496 constants.CV_EINSTANCELAYOUT,
3497 instance, "instance has multiple secondary nodes: %s",
3498 utils.CommaJoin(inst_config.secondary_nodes),
3499 code=self.ETYPE_WARNING)
3501 if inst_config.disk_template in constants.DTS_INT_MIRROR:
3502 pnode = inst_config.primary_node
3503 instance_nodes = utils.NiceSort(inst_config.all_nodes)
3504 instance_groups = {}
3506 for node in instance_nodes:
3507 instance_groups.setdefault(self.all_node_info[node].group,
3511 "%s (group %s)" % (utils.CommaJoin(nodes), groupinfo[group].name)
3512 # Sort so that we always list the primary node first.
3513 for group, nodes in sorted(instance_groups.items(),
3514 key=lambda (_, nodes): pnode in nodes,
3517 self._ErrorIf(len(instance_groups) > 1,
3518 constants.CV_EINSTANCESPLITGROUPS,
3519 instance, "instance has primary and secondary nodes in"
3520 " different groups: %s", utils.CommaJoin(pretty_list),
3521 code=self.ETYPE_WARNING)
3523 if not cluster.FillBE(inst_config)[constants.BE_AUTO_BALANCE]:
3524 i_non_a_balanced.append(instance)
3526 for snode in inst_config.secondary_nodes:
3527 s_img = node_image[snode]
3528 _ErrorIf(s_img.rpc_fail and not s_img.offline, constants.CV_ENODERPC,
3529 snode, "instance %s, connection to secondary node failed",
3533 inst_nodes_offline.append(snode)
3535 # warn that the instance lives on offline nodes
3536 _ErrorIf(inst_nodes_offline, constants.CV_EINSTANCEBADNODE, instance,
3537 "instance has offline secondary node(s) %s",
3538 utils.CommaJoin(inst_nodes_offline))
3539 # ... or ghost/non-vm_capable nodes
3540 for node in inst_config.all_nodes:
3541 _ErrorIf(node_image[node].ghost, constants.CV_EINSTANCEBADNODE,
3542 instance, "instance lives on ghost node %s", node)
3543 _ErrorIf(not node_image[node].vm_capable, constants.CV_EINSTANCEBADNODE,
3544 instance, "instance lives on non-vm_capable node %s", node)
3546 feedback_fn("* Verifying orphan volumes")
3547 reserved = utils.FieldSet(*cluster.reserved_lvs)
3549 # We will get spurious "unknown volume" warnings if any node of this group
3550 # is secondary for an instance whose primary is in another group. To avoid
3551 # them, we find these instances and add their volumes to node_vol_should.
3552 for inst in self.all_inst_info.values():
3553 for secondary in inst.secondary_nodes:
3554 if (secondary in self.my_node_info
3555 and inst.name not in self.my_inst_info):
3556 inst.MapLVsByNode(node_vol_should)
3559 self._VerifyOrphanVolumes(node_vol_should, node_image, reserved)
3561 if constants.VERIFY_NPLUSONE_MEM not in self.op.skip_checks:
3562 feedback_fn("* Verifying N+1 Memory redundancy")
3563 self._VerifyNPlusOneMemory(node_image, self.my_inst_info)
3565 feedback_fn("* Other Notes")
3567 feedback_fn(" - NOTICE: %d non-redundant instance(s) found."
3568 % len(i_non_redundant))
3570 if i_non_a_balanced:
3571 feedback_fn(" - NOTICE: %d non-auto-balanced instance(s) found."
3572 % len(i_non_a_balanced))
3575 feedback_fn(" - NOTICE: %d offline instance(s) found." % i_offline)
3578 feedback_fn(" - NOTICE: %d offline node(s) found." % n_offline)
3581 feedback_fn(" - NOTICE: %d drained node(s) found." % n_drained)
3585 def HooksCallBack(self, phase, hooks_results, feedback_fn, lu_result):
3586 """Analyze the post-hooks' result
3588 This method analyses the hook result, handles it, and sends some
3589 nicely-formatted feedback back to the user.
3591 @param phase: one of L{constants.HOOKS_PHASE_POST} or
3592 L{constants.HOOKS_PHASE_PRE}; it denotes the hooks phase
3593 @param hooks_results: the results of the multi-node hooks rpc call
3594 @param feedback_fn: function used send feedback back to the caller
3595 @param lu_result: previous Exec result
3596 @return: the new Exec result, based on the previous result
3600 # We only really run POST phase hooks, only for non-empty groups,
3601 # and are only interested in their results
3602 if not self.my_node_names:
3605 elif phase == constants.HOOKS_PHASE_POST:
3606 # Used to change hooks' output to proper indentation
3607 feedback_fn("* Hooks Results")
3608 assert hooks_results, "invalid result from hooks"
3610 for node_name in hooks_results:
3611 res = hooks_results[node_name]
3613 test = msg and not res.offline
3614 self._ErrorIf(test, constants.CV_ENODEHOOKS, node_name,
3615 "Communication failure in hooks execution: %s", msg)
3616 if res.offline or msg:
3617 # No need to investigate payload if node is offline or gave
3620 for script, hkr, output in res.payload:
3621 test = hkr == constants.HKR_FAIL
3622 self._ErrorIf(test, constants.CV_ENODEHOOKS, node_name,
3623 "Script %s failed, output:", script)
3625 output = self._HOOKS_INDENT_RE.sub(" ", output)
3626 feedback_fn("%s" % output)
3632 class LUClusterVerifyDisks(NoHooksLU):
3633 """Verifies the cluster disks status.
3638 def ExpandNames(self):
3639 self.share_locks = _ShareAll()
3640 self.needed_locks = {
3641 locking.LEVEL_NODEGROUP: locking.ALL_SET,
3644 def Exec(self, feedback_fn):
3645 group_names = self.owned_locks(locking.LEVEL_NODEGROUP)
3647 # Submit one instance of L{opcodes.OpGroupVerifyDisks} per node group
3648 return ResultWithJobs([[opcodes.OpGroupVerifyDisks(group_name=group)]
3649 for group in group_names])
3652 class LUGroupVerifyDisks(NoHooksLU):
3653 """Verifies the status of all disks in a node group.
3658 def ExpandNames(self):
3659 # Raises errors.OpPrereqError on its own if group can't be found
3660 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
3662 self.share_locks = _ShareAll()
3663 self.needed_locks = {
3664 locking.LEVEL_INSTANCE: [],
3665 locking.LEVEL_NODEGROUP: [],
3666 locking.LEVEL_NODE: [],
3668 # This opcode is acquires all node locks in a group. LUClusterVerifyDisks
3669 # starts one instance of this opcode for every group, which means all
3670 # nodes will be locked for a short amount of time, so it's better to
3671 # acquire the node allocation lock as well.
3672 locking.LEVEL_NODE_ALLOC: locking.ALL_SET,
3675 def DeclareLocks(self, level):
3676 if level == locking.LEVEL_INSTANCE:
3677 assert not self.needed_locks[locking.LEVEL_INSTANCE]
3679 # Lock instances optimistically, needs verification once node and group
3680 # locks have been acquired
3681 self.needed_locks[locking.LEVEL_INSTANCE] = \
3682 self.cfg.GetNodeGroupInstances(self.group_uuid)
3684 elif level == locking.LEVEL_NODEGROUP:
3685 assert not self.needed_locks[locking.LEVEL_NODEGROUP]
3687 self.needed_locks[locking.LEVEL_NODEGROUP] = \
3688 set([self.group_uuid] +
3689 # Lock all groups used by instances optimistically; this requires
3690 # going via the node before it's locked, requiring verification
3693 for instance_name in self.owned_locks(locking.LEVEL_INSTANCE)
3694 for group_uuid in self.cfg.GetInstanceNodeGroups(instance_name)])
3696 elif level == locking.LEVEL_NODE:
3697 # This will only lock the nodes in the group to be verified which contain
3699 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
3700 self._LockInstancesNodes()
3702 # Lock all nodes in group to be verified
3703 assert self.group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP)
3704 member_nodes = self.cfg.GetNodeGroup(self.group_uuid).members
3705 self.needed_locks[locking.LEVEL_NODE].extend(member_nodes)
3707 def CheckPrereq(self):
3708 owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE))
3709 owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP))
3710 owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE))
3712 assert self.group_uuid in owned_groups
3714 # Check if locked instances are still correct
3715 _CheckNodeGroupInstances(self.cfg, self.group_uuid, owned_instances)
3717 # Get instance information
3718 self.instances = dict(self.cfg.GetMultiInstanceInfo(owned_instances))
3720 # Check if node groups for locked instances are still correct
3721 _CheckInstancesNodeGroups(self.cfg, self.instances,
3722 owned_groups, owned_nodes, self.group_uuid)
3724 def Exec(self, feedback_fn):
3725 """Verify integrity of cluster disks.
3727 @rtype: tuple of three items
3728 @return: a tuple of (dict of node-to-node_error, list of instances
3729 which need activate-disks, dict of instance: (node, volume) for
3734 res_instances = set()
3737 nv_dict = _MapInstanceDisksToNodes(
3738 [inst for inst in self.instances.values()
3739 if inst.admin_state == constants.ADMINST_UP])
3742 nodes = utils.NiceSort(set(self.owned_locks(locking.LEVEL_NODE)) &
3743 set(self.cfg.GetVmCapableNodeList()))
3745 node_lvs = self.rpc.call_lv_list(nodes, [])
3747 for (node, node_res) in node_lvs.items():
3748 if node_res.offline:
3751 msg = node_res.fail_msg
3753 logging.warning("Error enumerating LVs on node %s: %s", node, msg)
3754 res_nodes[node] = msg
3757 for lv_name, (_, _, lv_online) in node_res.payload.items():
3758 inst = nv_dict.pop((node, lv_name), None)
3759 if not (lv_online or inst is None):
3760 res_instances.add(inst)
3762 # any leftover items in nv_dict are missing LVs, let's arrange the data
3764 for key, inst in nv_dict.iteritems():
3765 res_missing.setdefault(inst, []).append(list(key))
3767 return (res_nodes, list(res_instances), res_missing)
3770 class LUClusterRepairDiskSizes(NoHooksLU):
3771 """Verifies the cluster disks sizes.
3776 def ExpandNames(self):
3777 if self.op.instances:
3778 self.wanted_names = _GetWantedInstances(self, self.op.instances)
3779 # Not getting the node allocation lock as only a specific set of
3780 # instances (and their nodes) is going to be acquired
3781 self.needed_locks = {
3782 locking.LEVEL_NODE_RES: [],
3783 locking.LEVEL_INSTANCE: self.wanted_names,
3785 self.recalculate_locks[locking.LEVEL_NODE_RES] = constants.LOCKS_REPLACE
3787 self.wanted_names = None
3788 self.needed_locks = {
3789 locking.LEVEL_NODE_RES: locking.ALL_SET,
3790 locking.LEVEL_INSTANCE: locking.ALL_SET,
3792 # This opcode is acquires the node locks for all instances
3793 locking.LEVEL_NODE_ALLOC: locking.ALL_SET,
3796 self.share_locks = {
3797 locking.LEVEL_NODE_RES: 1,
3798 locking.LEVEL_INSTANCE: 0,
3799 locking.LEVEL_NODE_ALLOC: 1,
3802 def DeclareLocks(self, level):
3803 if level == locking.LEVEL_NODE_RES and self.wanted_names is not None:
3804 self._LockInstancesNodes(primary_only=True, level=level)
3806 def CheckPrereq(self):
3807 """Check prerequisites.
3809 This only checks the optional instance list against the existing names.
3812 if self.wanted_names is None:
3813 self.wanted_names = self.owned_locks(locking.LEVEL_INSTANCE)
3815 self.wanted_instances = \
3816 map(compat.snd, self.cfg.GetMultiInstanceInfo(self.wanted_names))
3818 def _EnsureChildSizes(self, disk):
3819 """Ensure children of the disk have the needed disk size.
3821 This is valid mainly for DRBD8 and fixes an issue where the
3822 children have smaller disk size.
3824 @param disk: an L{ganeti.objects.Disk} object
3827 if disk.dev_type == constants.LD_DRBD8:
3828 assert disk.children, "Empty children for DRBD8?"
3829 fchild = disk.children[0]
3830 mismatch = fchild.size < disk.size
3832 self.LogInfo("Child disk has size %d, parent %d, fixing",
3833 fchild.size, disk.size)
3834 fchild.size = disk.size
3836 # and we recurse on this child only, not on the metadev
3837 return self._EnsureChildSizes(fchild) or mismatch
3841 def Exec(self, feedback_fn):
3842 """Verify the size of cluster disks.
3845 # TODO: check child disks too
3846 # TODO: check differences in size between primary/secondary nodes
3848 for instance in self.wanted_instances:
3849 pnode = instance.primary_node
3850 if pnode not in per_node_disks:
3851 per_node_disks[pnode] = []
3852 for idx, disk in enumerate(instance.disks):
3853 per_node_disks[pnode].append((instance, idx, disk))
3855 assert not (frozenset(per_node_disks.keys()) -
3856 self.owned_locks(locking.LEVEL_NODE_RES)), \
3857 "Not owning correct locks"
3858 assert not self.owned_locks(locking.LEVEL_NODE)
3861 for node, dskl in per_node_disks.items():
3862 newl = [v[2].Copy() for v in dskl]
3864 self.cfg.SetDiskID(dsk, node)
3865 result = self.rpc.call_blockdev_getsize(node, newl)
3867 self.LogWarning("Failure in blockdev_getsize call to node"
3868 " %s, ignoring", node)
3870 if len(result.payload) != len(dskl):
3871 logging.warning("Invalid result from node %s: len(dksl)=%d,"
3872 " result.payload=%s", node, len(dskl), result.payload)
3873 self.LogWarning("Invalid result from node %s, ignoring node results",
3876 for ((instance, idx, disk), size) in zip(dskl, result.payload):
3878 self.LogWarning("Disk %d of instance %s did not return size"
3879 " information, ignoring", idx, instance.name)
3881 if not isinstance(size, (int, long)):
3882 self.LogWarning("Disk %d of instance %s did not return valid"
3883 " size information, ignoring", idx, instance.name)
3886 if size != disk.size:
3887 self.LogInfo("Disk %d of instance %s has mismatched size,"
3888 " correcting: recorded %d, actual %d", idx,
3889 instance.name, disk.size, size)
3891 self.cfg.Update(instance, feedback_fn)
3892 changed.append((instance.name, idx, size))
3893 if self._EnsureChildSizes(disk):
3894 self.cfg.Update(instance, feedback_fn)
3895 changed.append((instance.name, idx, disk.size))
3899 class LUClusterRename(LogicalUnit):
3900 """Rename the cluster.
3903 HPATH = "cluster-rename"
3904 HTYPE = constants.HTYPE_CLUSTER
3906 def BuildHooksEnv(self):
3911 "OP_TARGET": self.cfg.GetClusterName(),
3912 "NEW_NAME": self.op.name,
3915 def BuildHooksNodes(self):
3916 """Build hooks nodes.
3919 return ([self.cfg.GetMasterNode()], self.cfg.GetNodeList())
3921 def CheckPrereq(self):
3922 """Verify that the passed name is a valid one.
3925 hostname = netutils.GetHostname(name=self.op.name,
3926 family=self.cfg.GetPrimaryIPFamily())
3928 new_name = hostname.name
3929 self.ip = new_ip = hostname.ip
3930 old_name = self.cfg.GetClusterName()
3931 old_ip = self.cfg.GetMasterIP()
3932 if new_name == old_name and new_ip == old_ip:
3933 raise errors.OpPrereqError("Neither the name nor the IP address of the"
3934 " cluster has changed",
3936 if new_ip != old_ip:
3937 if netutils.TcpPing(new_ip, constants.DEFAULT_NODED_PORT):
3938 raise errors.OpPrereqError("The given cluster IP address (%s) is"
3939 " reachable on the network" %
3940 new_ip, errors.ECODE_NOTUNIQUE)
3942 self.op.name = new_name
3944 def Exec(self, feedback_fn):
3945 """Rename the cluster.
3948 clustername = self.op.name
3951 # shutdown the master IP
3952 master_params = self.cfg.GetMasterNetworkParameters()
3953 ems = self.cfg.GetUseExternalMipScript()
3954 result = self.rpc.call_node_deactivate_master_ip(master_params.name,
3956 result.Raise("Could not disable the master role")
3959 cluster = self.cfg.GetClusterInfo()
3960 cluster.cluster_name = clustername
3961 cluster.master_ip = new_ip
3962 self.cfg.Update(cluster, feedback_fn)
3964 # update the known hosts file
3965 ssh.WriteKnownHostsFile(self.cfg, pathutils.SSH_KNOWN_HOSTS_FILE)
3966 node_list = self.cfg.GetOnlineNodeList()
3968 node_list.remove(master_params.name)
3971 _UploadHelper(self, node_list, pathutils.SSH_KNOWN_HOSTS_FILE)
3973 master_params.ip = new_ip
3974 result = self.rpc.call_node_activate_master_ip(master_params.name,
3976 msg = result.fail_msg
3978 self.LogWarning("Could not re-enable the master role on"
3979 " the master, please restart manually: %s", msg)
3984 def _ValidateNetmask(cfg, netmask):
3985 """Checks if a netmask is valid.
3987 @type cfg: L{config.ConfigWriter}
3988 @param cfg: The cluster configuration
3990 @param netmask: the netmask to be verified
3991 @raise errors.OpPrereqError: if the validation fails
3994 ip_family = cfg.GetPrimaryIPFamily()
3996 ipcls = netutils.IPAddress.GetClassFromIpFamily(ip_family)
3997 except errors.ProgrammerError:
3998 raise errors.OpPrereqError("Invalid primary ip family: %s." %
3999 ip_family, errors.ECODE_INVAL)
4000 if not ipcls.ValidateNetmask(netmask):
4001 raise errors.OpPrereqError("CIDR netmask (%s) not valid" %
4002 (netmask), errors.ECODE_INVAL)
4005 class LUClusterSetParams(LogicalUnit):
4006 """Change the parameters of the cluster.
4009 HPATH = "cluster-modify"
4010 HTYPE = constants.HTYPE_CLUSTER
4013 def CheckArguments(self):
4017 if self.op.uid_pool:
4018 uidpool.CheckUidPool(self.op.uid_pool)
4020 if self.op.add_uids:
4021 uidpool.CheckUidPool(self.op.add_uids)
4023 if self.op.remove_uids:
4024 uidpool.CheckUidPool(self.op.remove_uids)
4026 if self.op.master_netmask is not None:
4027 _ValidateNetmask(self.cfg, self.op.master_netmask)
4029 if self.op.diskparams:
4030 for dt_params in self.op.diskparams.values():
4031 utils.ForceDictType(dt_params, constants.DISK_DT_TYPES)
4033 utils.VerifyDictOptions(self.op.diskparams, constants.DISK_DT_DEFAULTS)
4034 except errors.OpPrereqError, err:
4035 raise errors.OpPrereqError("While verify diskparams options: %s" % err,
4038 def ExpandNames(self):
4039 # FIXME: in the future maybe other cluster params won't require checking on
4040 # all nodes to be modified.
4041 # FIXME: This opcode changes cluster-wide settings. Is acquiring all
4042 # resource locks the right thing, shouldn't it be the BGL instead?
4043 self.needed_locks = {
4044 locking.LEVEL_NODE: locking.ALL_SET,
4045 locking.LEVEL_INSTANCE: locking.ALL_SET,
4046 locking.LEVEL_NODEGROUP: locking.ALL_SET,
4047 locking.LEVEL_NODE_ALLOC: locking.ALL_SET,
4049 self.share_locks = _ShareAll()
4051 def BuildHooksEnv(self):
4056 "OP_TARGET": self.cfg.GetClusterName(),
4057 "NEW_VG_NAME": self.op.vg_name,
4060 def BuildHooksNodes(self):
4061 """Build hooks nodes.
4064 mn = self.cfg.GetMasterNode()
4067 def CheckPrereq(self):
4068 """Check prerequisites.
4070 This checks whether the given params don't conflict and
4071 if the given volume group is valid.
4074 if self.op.vg_name is not None and not self.op.vg_name:
4075 if self.cfg.HasAnyDiskOfType(constants.LD_LV):
4076 raise errors.OpPrereqError("Cannot disable lvm storage while lvm-based"
4077 " instances exist", errors.ECODE_INVAL)
4079 if self.op.drbd_helper is not None and not self.op.drbd_helper:
4080 if self.cfg.HasAnyDiskOfType(constants.LD_DRBD8):
4081 raise errors.OpPrereqError("Cannot disable drbd helper while"
4082 " drbd-based instances exist",
4085 node_list = self.owned_locks(locking.LEVEL_NODE)
4087 # if vg_name not None, checks given volume group on all nodes
4089 vglist = self.rpc.call_vg_list(node_list)
4090 for node in node_list:
4091 msg = vglist[node].fail_msg
4093 # ignoring down node
4094 self.LogWarning("Error while gathering data on node %s"
4095 " (ignoring node): %s", node, msg)
4097 vgstatus = utils.CheckVolumeGroupSize(vglist[node].payload,
4099 constants.MIN_VG_SIZE)
4101 raise errors.OpPrereqError("Error on node '%s': %s" %
4102 (node, vgstatus), errors.ECODE_ENVIRON)
4104 if self.op.drbd_helper:
4105 # checks given drbd helper on all nodes
4106 helpers = self.rpc.call_drbd_helper(node_list)
4107 for (node, ninfo) in self.cfg.GetMultiNodeInfo(node_list):
4109 self.LogInfo("Not checking drbd helper on offline node %s", node)
4111 msg = helpers[node].fail_msg
4113 raise errors.OpPrereqError("Error checking drbd helper on node"
4114 " '%s': %s" % (node, msg),
4115 errors.ECODE_ENVIRON)
4116 node_helper = helpers[node].payload
4117 if node_helper != self.op.drbd_helper:
4118 raise errors.OpPrereqError("Error on node '%s': drbd helper is %s" %
4119 (node, node_helper), errors.ECODE_ENVIRON)
4121 self.cluster = cluster = self.cfg.GetClusterInfo()
4122 # validate params changes
4123 if self.op.beparams:
4124 objects.UpgradeBeParams(self.op.beparams)
4125 utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
4126 self.new_beparams = cluster.SimpleFillBE(self.op.beparams)
4128 if self.op.ndparams:
4129 utils.ForceDictType(self.op.ndparams, constants.NDS_PARAMETER_TYPES)
4130 self.new_ndparams = cluster.SimpleFillND(self.op.ndparams)
4132 # TODO: we need a more general way to handle resetting
4133 # cluster-level parameters to default values
4134 if self.new_ndparams["oob_program"] == "":
4135 self.new_ndparams["oob_program"] = \
4136 constants.NDC_DEFAULTS[constants.ND_OOB_PROGRAM]
4138 if self.op.hv_state:
4139 new_hv_state = _MergeAndVerifyHvState(self.op.hv_state,
4140 self.cluster.hv_state_static)
4141 self.new_hv_state = dict((hv, cluster.SimpleFillHvState(values))
4142 for hv, values in new_hv_state.items())
4144 if self.op.disk_state:
4145 new_disk_state = _MergeAndVerifyDiskState(self.op.disk_state,
4146 self.cluster.disk_state_static)
4147 self.new_disk_state = \
4148 dict((storage, dict((name, cluster.SimpleFillDiskState(values))
4149 for name, values in svalues.items()))
4150 for storage, svalues in new_disk_state.items())
4153 self.new_ipolicy = _GetUpdatedIPolicy(cluster.ipolicy, self.op.ipolicy,
4156 all_instances = self.cfg.GetAllInstancesInfo().values()
4158 for group in self.cfg.GetAllNodeGroupsInfo().values():
4159 instances = frozenset([inst for inst in all_instances
4160 if compat.any(node in group.members
4161 for node in inst.all_nodes)])
4162 new_ipolicy = objects.FillIPolicy(self.new_ipolicy, group.ipolicy)
4163 ipol = ganeti.masterd.instance.CalculateGroupIPolicy(cluster, group)
4164 new = _ComputeNewInstanceViolations(ipol,
4165 new_ipolicy, instances)
4167 violations.update(new)
4170 self.LogWarning("After the ipolicy change the following instances"
4171 " violate them: %s",
4172 utils.CommaJoin(utils.NiceSort(violations)))
4174 if self.op.nicparams:
4175 utils.ForceDictType(self.op.nicparams, constants.NICS_PARAMETER_TYPES)
4176 self.new_nicparams = cluster.SimpleFillNIC(self.op.nicparams)
4177 objects.NIC.CheckParameterSyntax(self.new_nicparams)
4180 # check all instances for consistency
4181 for instance in self.cfg.GetAllInstancesInfo().values():
4182 for nic_idx, nic in enumerate(instance.nics):
4183 params_copy = copy.deepcopy(nic.nicparams)
4184 params_filled = objects.FillDict(self.new_nicparams, params_copy)
4186 # check parameter syntax
4188 objects.NIC.CheckParameterSyntax(params_filled)
4189 except errors.ConfigurationError, err:
4190 nic_errors.append("Instance %s, nic/%d: %s" %
4191 (instance.name, nic_idx, err))
4193 # if we're moving instances to routed, check that they have an ip
4194 target_mode = params_filled[constants.NIC_MODE]
4195 if target_mode == constants.NIC_MODE_ROUTED and not nic.ip:
4196 nic_errors.append("Instance %s, nic/%d: routed NIC with no ip"
4197 " address" % (instance.name, nic_idx))
4199 raise errors.OpPrereqError("Cannot apply the change, errors:\n%s" %
4200 "\n".join(nic_errors), errors.ECODE_INVAL)
4202 # hypervisor list/parameters
4203 self.new_hvparams = new_hvp = objects.FillDict(cluster.hvparams, {})
4204 if self.op.hvparams:
4205 for hv_name, hv_dict in self.op.hvparams.items():
4206 if hv_name not in self.new_hvparams:
4207 self.new_hvparams[hv_name] = hv_dict
4209 self.new_hvparams[hv_name].update(hv_dict)
4211 # disk template parameters
4212 self.new_diskparams = objects.FillDict(cluster.diskparams, {})
4213 if self.op.diskparams:
4214 for dt_name, dt_params in self.op.diskparams.items():
4215 if dt_name not in self.op.diskparams:
4216 self.new_diskparams[dt_name] = dt_params
4218 self.new_diskparams[dt_name].update(dt_params)
4220 # os hypervisor parameters
4221 self.new_os_hvp = objects.FillDict(cluster.os_hvp, {})
4223 for os_name, hvs in self.op.os_hvp.items():
4224 if os_name not in self.new_os_hvp:
4225 self.new_os_hvp[os_name] = hvs
4227 for hv_name, hv_dict in hvs.items():
4228 if hv_name not in self.new_os_hvp[os_name]:
4229 self.new_os_hvp[os_name][hv_name] = hv_dict
4231 self.new_os_hvp[os_name][hv_name].update(hv_dict)
4234 self.new_osp = objects.FillDict(cluster.osparams, {})
4235 if self.op.osparams:
4236 for os_name, osp in self.op.osparams.items():
4237 if os_name not in self.new_osp:
4238 self.new_osp[os_name] = {}
4240 self.new_osp[os_name] = _GetUpdatedParams(self.new_osp[os_name], osp,
4243 if not self.new_osp[os_name]:
4244 # we removed all parameters
4245 del self.new_osp[os_name]
4247 # check the parameter validity (remote check)
4248 _CheckOSParams(self, False, [self.cfg.GetMasterNode()],
4249 os_name, self.new_osp[os_name])
4251 # changes to the hypervisor list
4252 if self.op.enabled_hypervisors is not None:
4253 self.hv_list = self.op.enabled_hypervisors
4254 for hv in self.hv_list:
4255 # if the hypervisor doesn't already exist in the cluster
4256 # hvparams, we initialize it to empty, and then (in both
4257 # cases) we make sure to fill the defaults, as we might not
4258 # have a complete defaults list if the hypervisor wasn't
4260 if hv not in new_hvp:
4262 new_hvp[hv] = objects.FillDict(constants.HVC_DEFAULTS[hv], new_hvp[hv])
4263 utils.ForceDictType(new_hvp[hv], constants.HVS_PARAMETER_TYPES)
4265 self.hv_list = cluster.enabled_hypervisors
4267 if self.op.hvparams or self.op.enabled_hypervisors is not None:
4268 # either the enabled list has changed, or the parameters have, validate
4269 for hv_name, hv_params in self.new_hvparams.items():
4270 if ((self.op.hvparams and hv_name in self.op.hvparams) or
4271 (self.op.enabled_hypervisors and
4272 hv_name in self.op.enabled_hypervisors)):
4273 # either this is a new hypervisor, or its parameters have changed
4274 hv_class = hypervisor.GetHypervisor(hv_name)
4275 utils.ForceDictType(hv_params, constants.HVS_PARAMETER_TYPES)
4276 hv_class.CheckParameterSyntax(hv_params)
4277 _CheckHVParams(self, node_list, hv_name, hv_params)
4280 # no need to check any newly-enabled hypervisors, since the
4281 # defaults have already been checked in the above code-block
4282 for os_name, os_hvp in self.new_os_hvp.items():
4283 for hv_name, hv_params in os_hvp.items():
4284 utils.ForceDictType(hv_params, constants.HVS_PARAMETER_TYPES)
4285 # we need to fill in the new os_hvp on top of the actual hv_p
4286 cluster_defaults = self.new_hvparams.get(hv_name, {})
4287 new_osp = objects.FillDict(cluster_defaults, hv_params)
4288 hv_class = hypervisor.GetHypervisor(hv_name)
4289 hv_class.CheckParameterSyntax(new_osp)
4290 _CheckHVParams(self, node_list, hv_name, new_osp)
4292 if self.op.default_iallocator:
4293 alloc_script = utils.FindFile(self.op.default_iallocator,
4294 constants.IALLOCATOR_SEARCH_PATH,
4296 if alloc_script is None:
4297 raise errors.OpPrereqError("Invalid default iallocator script '%s'"
4298 " specified" % self.op.default_iallocator,
4301 def Exec(self, feedback_fn):
4302 """Change the parameters of the cluster.
4305 if self.op.vg_name is not None:
4306 new_volume = self.op.vg_name
4309 if new_volume != self.cfg.GetVGName():
4310 self.cfg.SetVGName(new_volume)
4312 feedback_fn("Cluster LVM configuration already in desired"
4313 " state, not changing")
4314 if self.op.drbd_helper is not None:
4315 new_helper = self.op.drbd_helper
4318 if new_helper != self.cfg.GetDRBDHelper():
4319 self.cfg.SetDRBDHelper(new_helper)
4321 feedback_fn("Cluster DRBD helper already in desired state,"
4323 if self.op.hvparams:
4324 self.cluster.hvparams = self.new_hvparams
4326 self.cluster.os_hvp = self.new_os_hvp
4327 if self.op.enabled_hypervisors is not None:
4328 self.cluster.hvparams = self.new_hvparams
4329 self.cluster.enabled_hypervisors = self.op.enabled_hypervisors
4330 if self.op.beparams:
4331 self.cluster.beparams[constants.PP_DEFAULT] = self.new_beparams
4332 if self.op.nicparams:
4333 self.cluster.nicparams[constants.PP_DEFAULT] = self.new_nicparams
4335 self.cluster.ipolicy = self.new_ipolicy
4336 if self.op.osparams:
4337 self.cluster.osparams = self.new_osp
4338 if self.op.ndparams:
4339 self.cluster.ndparams = self.new_ndparams
4340 if self.op.diskparams:
4341 self.cluster.diskparams = self.new_diskparams
4342 if self.op.hv_state:
4343 self.cluster.hv_state_static = self.new_hv_state
4344 if self.op.disk_state:
4345 self.cluster.disk_state_static = self.new_disk_state
4347 if self.op.candidate_pool_size is not None:
4348 self.cluster.candidate_pool_size = self.op.candidate_pool_size
4349 # we need to update the pool size here, otherwise the save will fail
4350 _AdjustCandidatePool(self, [])
4352 if self.op.maintain_node_health is not None:
4353 if self.op.maintain_node_health and not constants.ENABLE_CONFD:
4354 feedback_fn("Note: CONFD was disabled at build time, node health"
4355 " maintenance is not useful (still enabling it)")
4356 self.cluster.maintain_node_health = self.op.maintain_node_health
4358 if self.op.prealloc_wipe_disks is not None:
4359 self.cluster.prealloc_wipe_disks = self.op.prealloc_wipe_disks
4361 if self.op.add_uids is not None:
4362 uidpool.AddToUidPool(self.cluster.uid_pool, self.op.add_uids)
4364 if self.op.remove_uids is not None:
4365 uidpool.RemoveFromUidPool(self.cluster.uid_pool, self.op.remove_uids)
4367 if self.op.uid_pool is not None:
4368 self.cluster.uid_pool = self.op.uid_pool
4370 if self.op.default_iallocator is not None:
4371 self.cluster.default_iallocator = self.op.default_iallocator
4373 if self.op.reserved_lvs is not None:
4374 self.cluster.reserved_lvs = self.op.reserved_lvs
4376 if self.op.use_external_mip_script is not None:
4377 self.cluster.use_external_mip_script = self.op.use_external_mip_script
4379 def helper_os(aname, mods, desc):
4381 lst = getattr(self.cluster, aname)
4382 for key, val in mods:
4383 if key == constants.DDM_ADD:
4385 feedback_fn("OS %s already in %s, ignoring" % (val, desc))
4388 elif key == constants.DDM_REMOVE:
4392 feedback_fn("OS %s not found in %s, ignoring" % (val, desc))
4394 raise errors.ProgrammerError("Invalid modification '%s'" % key)
4396 if self.op.hidden_os:
4397 helper_os("hidden_os", self.op.hidden_os, "hidden")
4399 if self.op.blacklisted_os:
4400 helper_os("blacklisted_os", self.op.blacklisted_os, "blacklisted")
4402 if self.op.master_netdev:
4403 master_params = self.cfg.GetMasterNetworkParameters()
4404 ems = self.cfg.GetUseExternalMipScript()
4405 feedback_fn("Shutting down master ip on the current netdev (%s)" %
4406 self.cluster.master_netdev)
4407 result = self.rpc.call_node_deactivate_master_ip(master_params.name,
4409 result.Raise("Could not disable the master ip")
4410 feedback_fn("Changing master_netdev from %s to %s" %
4411 (master_params.netdev, self.op.master_netdev))
4412 self.cluster.master_netdev = self.op.master_netdev
4414 if self.op.master_netmask:
4415 master_params = self.cfg.GetMasterNetworkParameters()
4416 feedback_fn("Changing master IP netmask to %s" % self.op.master_netmask)
4417 result = self.rpc.call_node_change_master_netmask(master_params.name,
4418 master_params.netmask,
4419 self.op.master_netmask,
4421 master_params.netdev)
4423 msg = "Could not change the master IP netmask: %s" % result.fail_msg
4426 self.cluster.master_netmask = self.op.master_netmask
4428 self.cfg.Update(self.cluster, feedback_fn)
4430 if self.op.master_netdev:
4431 master_params = self.cfg.GetMasterNetworkParameters()
4432 feedback_fn("Starting the master ip on the new master netdev (%s)" %
4433 self.op.master_netdev)
4434 ems = self.cfg.GetUseExternalMipScript()
4435 result = self.rpc.call_node_activate_master_ip(master_params.name,
4438 self.LogWarning("Could not re-enable the master ip on"
4439 " the master, please restart manually: %s",
4443 def _UploadHelper(lu, nodes, fname):
4444 """Helper for uploading a file and showing warnings.
4447 if os.path.exists(fname):
4448 result = lu.rpc.call_upload_file(nodes, fname)
4449 for to_node, to_result in result.items():
4450 msg = to_result.fail_msg
4452 msg = ("Copy of file %s to node %s failed: %s" %
4453 (fname, to_node, msg))
4457 def _ComputeAncillaryFiles(cluster, redist):
4458 """Compute files external to Ganeti which need to be consistent.
4460 @type redist: boolean
4461 @param redist: Whether to include files which need to be redistributed
4464 # Compute files for all nodes
4466 pathutils.SSH_KNOWN_HOSTS_FILE,
4467 pathutils.CONFD_HMAC_KEY,
4468 pathutils.CLUSTER_DOMAIN_SECRET_FILE,
4469 pathutils.SPICE_CERT_FILE,
4470 pathutils.SPICE_CACERT_FILE,
4471 pathutils.RAPI_USERS_FILE,
4475 # we need to ship at least the RAPI certificate
4476 files_all.add(pathutils.RAPI_CERT_FILE)
4478 files_all.update(pathutils.ALL_CERT_FILES)
4479 files_all.update(ssconf.SimpleStore().GetFileList())
4481 if cluster.modify_etc_hosts:
4482 files_all.add(pathutils.ETC_HOSTS)
4484 if cluster.use_external_mip_script:
4485 files_all.add(pathutils.EXTERNAL_MASTER_SETUP_SCRIPT)
4487 # Files which are optional, these must:
4488 # - be present in one other category as well
4489 # - either exist or not exist on all nodes of that category (mc, vm all)
4491 pathutils.RAPI_USERS_FILE,
4494 # Files which should only be on master candidates
4498 files_mc.add(pathutils.CLUSTER_CONF_FILE)
4502 (constants.ENABLE_FILE_STORAGE or constants.ENABLE_SHARED_FILE_STORAGE)):
4503 files_all.add(pathutils.FILE_STORAGE_PATHS_FILE)
4504 files_opt.add(pathutils.FILE_STORAGE_PATHS_FILE)
4506 # Files which should only be on VM-capable nodes
4509 for hv_name in cluster.enabled_hypervisors
4510 for filename in hypervisor.GetHypervisor(hv_name).GetAncillaryFiles()[0])
4514 for hv_name in cluster.enabled_hypervisors
4515 for filename in hypervisor.GetHypervisor(hv_name).GetAncillaryFiles()[1])
4517 # Filenames in each category must be unique
4518 all_files_set = files_all | files_mc | files_vm
4519 assert (len(all_files_set) ==
4520 sum(map(len, [files_all, files_mc, files_vm]))), \
4521 "Found file listed in more than one file list"
4523 # Optional files must be present in one other category
4524 assert all_files_set.issuperset(files_opt), \
4525 "Optional file not in a different required list"
4527 # This one file should never ever be re-distributed via RPC
4528 assert not (redist and
4529 pathutils.FILE_STORAGE_PATHS_FILE in all_files_set)
4531 return (files_all, files_opt, files_mc, files_vm)
4534 def _RedistributeAncillaryFiles(lu, additional_nodes=None, additional_vm=True):
4535 """Distribute additional files which are part of the cluster configuration.
4537 ConfigWriter takes care of distributing the config and ssconf files, but
4538 there are more files which should be distributed to all nodes. This function
4539 makes sure those are copied.
4541 @param lu: calling logical unit
4542 @param additional_nodes: list of nodes not in the config to distribute to
4543 @type additional_vm: boolean
4544 @param additional_vm: whether the additional nodes are vm-capable or not
4547 # Gather target nodes
4548 cluster = lu.cfg.GetClusterInfo()
4549 master_info = lu.cfg.GetNodeInfo(lu.cfg.GetMasterNode())
4551 online_nodes = lu.cfg.GetOnlineNodeList()
4552 online_set = frozenset(online_nodes)
4553 vm_nodes = list(online_set.intersection(lu.cfg.GetVmCapableNodeList()))
4555 if additional_nodes is not None:
4556 online_nodes.extend(additional_nodes)
4558 vm_nodes.extend(additional_nodes)
4560 # Never distribute to master node
4561 for nodelist in [online_nodes, vm_nodes]:
4562 if master_info.name in nodelist:
4563 nodelist.remove(master_info.name)
4566 (files_all, _, files_mc, files_vm) = \
4567 _ComputeAncillaryFiles(cluster, True)
4569 # Never re-distribute configuration file from here
4570 assert not (pathutils.CLUSTER_CONF_FILE in files_all or
4571 pathutils.CLUSTER_CONF_FILE in files_vm)
4572 assert not files_mc, "Master candidates not handled in this function"
4575 (online_nodes, files_all),
4576 (vm_nodes, files_vm),
4580 for (node_list, files) in filemap:
4582 _UploadHelper(lu, node_list, fname)
4585 class LUClusterRedistConf(NoHooksLU):
4586 """Force the redistribution of cluster configuration.
4588 This is a very simple LU.
4593 def ExpandNames(self):
4594 self.needed_locks = {
4595 locking.LEVEL_NODE: locking.ALL_SET,
4596 locking.LEVEL_NODE_ALLOC: locking.ALL_SET,
4598 self.share_locks = _ShareAll()
4600 def Exec(self, feedback_fn):
4601 """Redistribute the configuration.
4604 self.cfg.Update(self.cfg.GetClusterInfo(), feedback_fn)
4605 _RedistributeAncillaryFiles(self)
4608 class LUClusterActivateMasterIp(NoHooksLU):
4609 """Activate the master IP on the master node.
4612 def Exec(self, feedback_fn):
4613 """Activate the master IP.
4616 master_params = self.cfg.GetMasterNetworkParameters()
4617 ems = self.cfg.GetUseExternalMipScript()
4618 result = self.rpc.call_node_activate_master_ip(master_params.name,
4620 result.Raise("Could not activate the master IP")
4623 class LUClusterDeactivateMasterIp(NoHooksLU):
4624 """Deactivate the master IP on the master node.
4627 def Exec(self, feedback_fn):
4628 """Deactivate the master IP.
4631 master_params = self.cfg.GetMasterNetworkParameters()
4632 ems = self.cfg.GetUseExternalMipScript()
4633 result = self.rpc.call_node_deactivate_master_ip(master_params.name,
4635 result.Raise("Could not deactivate the master IP")
4638 def _WaitForSync(lu, instance, disks=None, oneshot=False):
4639 """Sleep and poll for an instance's disk to sync.
4642 if not instance.disks or disks is not None and not disks:
4645 disks = _ExpandCheckDisks(instance, disks)
4648 lu.LogInfo("Waiting for instance %s to sync disks", instance.name)
4650 node = instance.primary_node
4653 lu.cfg.SetDiskID(dev, node)
4655 # TODO: Convert to utils.Retry
4658 degr_retries = 10 # in seconds, as we sleep 1 second each time
4662 cumul_degraded = False
4663 rstats = lu.rpc.call_blockdev_getmirrorstatus(node, (disks, instance))
4664 msg = rstats.fail_msg
4666 lu.LogWarning("Can't get any data from node %s: %s", node, msg)
4669 raise errors.RemoteError("Can't contact node %s for mirror data,"
4670 " aborting." % node)
4673 rstats = rstats.payload
4675 for i, mstat in enumerate(rstats):
4677 lu.LogWarning("Can't compute data for node %s/%s",
4678 node, disks[i].iv_name)
4681 cumul_degraded = (cumul_degraded or
4682 (mstat.is_degraded and mstat.sync_percent is None))
4683 if mstat.sync_percent is not None:
4685 if mstat.estimated_time is not None:
4686 rem_time = ("%s remaining (estimated)" %
4687 utils.FormatSeconds(mstat.estimated_time))
4688 max_time = mstat.estimated_time
4690 rem_time = "no time estimate"
4691 lu.LogInfo("- device %s: %5.2f%% done, %s",
4692 disks[i].iv_name, mstat.sync_percent, rem_time)
4694 # if we're done but degraded, let's do a few small retries, to
4695 # make sure we see a stable and not transient situation; therefore
4696 # we force restart of the loop
4697 if (done or oneshot) and cumul_degraded and degr_retries > 0:
4698 logging.info("Degraded disks found, %d retries left", degr_retries)
4706 time.sleep(min(60, max_time))
4709 lu.LogInfo("Instance %s's disks are in sync", instance.name)
4711 return not cumul_degraded
4714 def _BlockdevFind(lu, node, dev, instance):
4715 """Wrapper around call_blockdev_find to annotate diskparams.
4717 @param lu: A reference to the lu object
4718 @param node: The node to call out
4719 @param dev: The device to find
4720 @param instance: The instance object the device belongs to
4721 @returns The result of the rpc call
4724 (disk,) = _AnnotateDiskParams(instance, [dev], lu.cfg)
4725 return lu.rpc.call_blockdev_find(node, disk)
4728 def _CheckDiskConsistency(lu, instance, dev, node, on_primary, ldisk=False):
4729 """Wrapper around L{_CheckDiskConsistencyInner}.
4732 (disk,) = _AnnotateDiskParams(instance, [dev], lu.cfg)
4733 return _CheckDiskConsistencyInner(lu, instance, disk, node, on_primary,
4737 def _CheckDiskConsistencyInner(lu, instance, dev, node, on_primary,
4739 """Check that mirrors are not degraded.
4741 @attention: The device has to be annotated already.
4743 The ldisk parameter, if True, will change the test from the
4744 is_degraded attribute (which represents overall non-ok status for
4745 the device(s)) to the ldisk (representing the local storage status).
4748 lu.cfg.SetDiskID(dev, node)
4752 if on_primary or dev.AssembleOnSecondary():
4753 rstats = lu.rpc.call_blockdev_find(node, dev)
4754 msg = rstats.fail_msg
4756 lu.LogWarning("Can't find disk on node %s: %s", node, msg)
4758 elif not rstats.payload:
4759 lu.LogWarning("Can't find disk on node %s", node)
4763 result = result and rstats.payload.ldisk_status == constants.LDS_OKAY
4765 result = result and not rstats.payload.is_degraded
4768 for child in dev.children:
4769 result = result and _CheckDiskConsistencyInner(lu, instance, child, node,
4775 class LUOobCommand(NoHooksLU):
4776 """Logical unit for OOB handling.
4780 _SKIP_MASTER = (constants.OOB_POWER_OFF, constants.OOB_POWER_CYCLE)
4782 def ExpandNames(self):
4783 """Gather locks we need.
4786 if self.op.node_names:
4787 self.op.node_names = _GetWantedNodes(self, self.op.node_names)
4788 lock_names = self.op.node_names
4790 lock_names = locking.ALL_SET
4792 self.needed_locks = {
4793 locking.LEVEL_NODE: lock_names,
4796 self.share_locks[locking.LEVEL_NODE_ALLOC] = 1
4798 if not self.op.node_names:
4799 # Acquire node allocation lock only if all nodes are affected
4800 self.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET
4802 def CheckPrereq(self):
4803 """Check prerequisites.
4806 - the node exists in the configuration
4809 Any errors are signaled by raising errors.OpPrereqError.
4813 self.master_node = self.cfg.GetMasterNode()
4815 assert self.op.power_delay >= 0.0
4817 if self.op.node_names:
4818 if (self.op.command in self._SKIP_MASTER and
4819 self.master_node in self.op.node_names):
4820 master_node_obj = self.cfg.GetNodeInfo(self.master_node)
4821 master_oob_handler = _SupportsOob(self.cfg, master_node_obj)
4823 if master_oob_handler:
4824 additional_text = ("run '%s %s %s' if you want to operate on the"
4825 " master regardless") % (master_oob_handler,
4829 additional_text = "it does not support out-of-band operations"
4831 raise errors.OpPrereqError(("Operating on the master node %s is not"
4832 " allowed for %s; %s") %
4833 (self.master_node, self.op.command,
4834 additional_text), errors.ECODE_INVAL)
4836 self.op.node_names = self.cfg.GetNodeList()
4837 if self.op.command in self._SKIP_MASTER:
4838 self.op.node_names.remove(self.master_node)
4840 if self.op.command in self._SKIP_MASTER:
4841 assert self.master_node not in self.op.node_names
4843 for (node_name, node) in self.cfg.GetMultiNodeInfo(self.op.node_names):
4845 raise errors.OpPrereqError("Node %s not found" % node_name,
4848 self.nodes.append(node)
4850 if (not self.op.ignore_status and
4851 (self.op.command == constants.OOB_POWER_OFF and not node.offline)):
4852 raise errors.OpPrereqError(("Cannot power off node %s because it is"
4853 " not marked offline") % node_name,
4856 def Exec(self, feedback_fn):
4857 """Execute OOB and return result if we expect any.
4860 master_node = self.master_node
4863 for idx, node in enumerate(utils.NiceSort(self.nodes,
4864 key=lambda node: node.name)):
4865 node_entry = [(constants.RS_NORMAL, node.name)]
4866 ret.append(node_entry)
4868 oob_program = _SupportsOob(self.cfg, node)
4871 node_entry.append((constants.RS_UNAVAIL, None))
4874 logging.info("Executing out-of-band command '%s' using '%s' on %s",
4875 self.op.command, oob_program, node.name)
4876 result = self.rpc.call_run_oob(master_node, oob_program,
4877 self.op.command, node.name,
4881 self.LogWarning("Out-of-band RPC failed on node '%s': %s",
4882 node.name, result.fail_msg)
4883 node_entry.append((constants.RS_NODATA, None))
4886 self._CheckPayload(result)
4887 except errors.OpExecError, err:
4888 self.LogWarning("Payload returned by node '%s' is not valid: %s",
4890 node_entry.append((constants.RS_NODATA, None))
4892 if self.op.command == constants.OOB_HEALTH:
4893 # For health we should log important events
4894 for item, status in result.payload:
4895 if status in [constants.OOB_STATUS_WARNING,
4896 constants.OOB_STATUS_CRITICAL]:
4897 self.LogWarning("Item '%s' on node '%s' has status '%s'",
4898 item, node.name, status)
4900 if self.op.command == constants.OOB_POWER_ON:
4902 elif self.op.command == constants.OOB_POWER_OFF:
4903 node.powered = False
4904 elif self.op.command == constants.OOB_POWER_STATUS:
4905 powered = result.payload[constants.OOB_POWER_STATUS_POWERED]
4906 if powered != node.powered:
4907 logging.warning(("Recorded power state (%s) of node '%s' does not"
4908 " match actual power state (%s)"), node.powered,
4911 # For configuration changing commands we should update the node
4912 if self.op.command in (constants.OOB_POWER_ON,
4913 constants.OOB_POWER_OFF):
4914 self.cfg.Update(node, feedback_fn)
4916 node_entry.append((constants.RS_NORMAL, result.payload))
4918 if (self.op.command == constants.OOB_POWER_ON and
4919 idx < len(self.nodes) - 1):
4920 time.sleep(self.op.power_delay)
4924 def _CheckPayload(self, result):
4925 """Checks if the payload is valid.
4927 @param result: RPC result
4928 @raises errors.OpExecError: If payload is not valid
4932 if self.op.command == constants.OOB_HEALTH:
4933 if not isinstance(result.payload, list):
4934 errs.append("command 'health' is expected to return a list but got %s" %
4935 type(result.payload))
4937 for item, status in result.payload:
4938 if status not in constants.OOB_STATUSES:
4939 errs.append("health item '%s' has invalid status '%s'" %
4942 if self.op.command == constants.OOB_POWER_STATUS:
4943 if not isinstance(result.payload, dict):
4944 errs.append("power-status is expected to return a dict but got %s" %
4945 type(result.payload))
4947 if self.op.command in [
4948 constants.OOB_POWER_ON,
4949 constants.OOB_POWER_OFF,
4950 constants.OOB_POWER_CYCLE,
4952 if result.payload is not None:
4953 errs.append("%s is expected to not return payload but got '%s'" %
4954 (self.op.command, result.payload))
4957 raise errors.OpExecError("Check of out-of-band payload failed due to %s" %
4958 utils.CommaJoin(errs))
4961 class _OsQuery(_QueryBase):
4962 FIELDS = query.OS_FIELDS
4964 def ExpandNames(self, lu):
4965 # Lock all nodes in shared mode
4966 # Temporary removal of locks, should be reverted later
4967 # TODO: reintroduce locks when they are lighter-weight
4968 lu.needed_locks = {}
4969 #self.share_locks[locking.LEVEL_NODE] = 1
4970 #self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
4972 # The following variables interact with _QueryBase._GetNames
4974 self.wanted = self.names
4976 self.wanted = locking.ALL_SET
4978 self.do_locking = self.use_locking
4980 def DeclareLocks(self, lu, level):
4984 def _DiagnoseByOS(rlist):
4985 """Remaps a per-node return list into an a per-os per-node dictionary
4987 @param rlist: a map with node names as keys and OS objects as values
4990 @return: a dictionary with osnames as keys and as value another
4991 map, with nodes as keys and tuples of (path, status, diagnose,
4992 variants, parameters, api_versions) as values, eg::
4994 {"debian-etch": {"node1": [(/usr/lib/..., True, "", [], []),
4995 (/srv/..., False, "invalid api")],
4996 "node2": [(/srv/..., True, "", [], [])]}
5001 # we build here the list of nodes that didn't fail the RPC (at RPC
5002 # level), so that nodes with a non-responding node daemon don't
5003 # make all OSes invalid
5004 good_nodes = [node_name for node_name in rlist
5005 if not rlist[node_name].fail_msg]
5006 for node_name, nr in rlist.items():
5007 if nr.fail_msg or not nr.payload:
5009 for (name, path, status, diagnose, variants,
5010 params, api_versions) in nr.payload:
5011 if name not in all_os:
5012 # build a list of nodes for this os containing empty lists
5013 # for each node in node_list
5015 for nname in good_nodes:
5016 all_os[name][nname] = []
5017 # convert params from [name, help] to (name, help)
5018 params = [tuple(v) for v in params]
5019 all_os[name][node_name].append((path, status, diagnose,
5020 variants, params, api_versions))
5023 def _GetQueryData(self, lu):
5024 """Computes the list of nodes and their attributes.
5027 # Locking is not used
5028 assert not (compat.any(lu.glm.is_owned(level)
5029 for level in locking.LEVELS
5030 if level != locking.LEVEL_CLUSTER) or
5031 self.do_locking or self.use_locking)
5033 valid_nodes = [node.name
5034 for node in lu.cfg.GetAllNodesInfo().values()
5035 if not node.offline and node.vm_capable]
5036 pol = self._DiagnoseByOS(lu.rpc.call_os_diagnose(valid_nodes))
5037 cluster = lu.cfg.GetClusterInfo()
5041 for (os_name, os_data) in pol.items():
5042 info = query.OsInfo(name=os_name, valid=True, node_status=os_data,
5043 hidden=(os_name in cluster.hidden_os),
5044 blacklisted=(os_name in cluster.blacklisted_os))
5048 api_versions = set()
5050 for idx, osl in enumerate(os_data.values()):
5051 info.valid = bool(info.valid and osl and osl[0][1])
5055 (node_variants, node_params, node_api) = osl[0][3:6]
5058 variants.update(node_variants)
5059 parameters.update(node_params)
5060 api_versions.update(node_api)
5062 # Filter out inconsistent values
5063 variants.intersection_update(node_variants)
5064 parameters.intersection_update(node_params)
5065 api_versions.intersection_update(node_api)
5067 info.variants = list(variants)
5068 info.parameters = list(parameters)
5069 info.api_versions = list(api_versions)
5071 data[os_name] = info
5073 # Prepare data in requested order
5074 return [data[name] for name in self._GetNames(lu, pol.keys(), None)
5078 class LUOsDiagnose(NoHooksLU):
5079 """Logical unit for OS diagnose/query.
5085 def _BuildFilter(fields, names):
5086 """Builds a filter for querying OSes.
5089 name_filter = qlang.MakeSimpleFilter("name", names)
5091 # Legacy behaviour: Hide hidden, blacklisted or invalid OSes if the
5092 # respective field is not requested
5093 status_filter = [[qlang.OP_NOT, [qlang.OP_TRUE, fname]]
5094 for fname in ["hidden", "blacklisted"]
5095 if fname not in fields]
5096 if "valid" not in fields:
5097 status_filter.append([qlang.OP_TRUE, "valid"])
5100 status_filter.insert(0, qlang.OP_AND)
5102 status_filter = None
5104 if name_filter and status_filter:
5105 return [qlang.OP_AND, name_filter, status_filter]
5109 return status_filter
5111 def CheckArguments(self):
5112 self.oq = _OsQuery(self._BuildFilter(self.op.output_fields, self.op.names),
5113 self.op.output_fields, False)
5115 def ExpandNames(self):
5116 self.oq.ExpandNames(self)
5118 def Exec(self, feedback_fn):
5119 return self.oq.OldStyleQuery(self)
5122 class LUNodeRemove(LogicalUnit):
5123 """Logical unit for removing a node.
5126 HPATH = "node-remove"
5127 HTYPE = constants.HTYPE_NODE
5129 def BuildHooksEnv(self):
5134 "OP_TARGET": self.op.node_name,
5135 "NODE_NAME": self.op.node_name,
5138 def BuildHooksNodes(self):
5139 """Build hooks nodes.
5141 This doesn't run on the target node in the pre phase as a failed
5142 node would then be impossible to remove.
5145 all_nodes = self.cfg.GetNodeList()
5147 all_nodes.remove(self.op.node_name)
5150 return (all_nodes, all_nodes)
5152 def CheckPrereq(self):
5153 """Check prerequisites.
5156 - the node exists in the configuration
5157 - it does not have primary or secondary instances
5158 - it's not the master
5160 Any errors are signaled by raising errors.OpPrereqError.
5163 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
5164 node = self.cfg.GetNodeInfo(self.op.node_name)
5165 assert node is not None
5167 masternode = self.cfg.GetMasterNode()
5168 if node.name == masternode:
5169 raise errors.OpPrereqError("Node is the master node, failover to another"
5170 " node is required", errors.ECODE_INVAL)
5172 for instance_name, instance in self.cfg.GetAllInstancesInfo().items():
5173 if node.name in instance.all_nodes:
5174 raise errors.OpPrereqError("Instance %s is still running on the node,"
5175 " please remove first" % instance_name,
5177 self.op.node_name = node.name
5180 def Exec(self, feedback_fn):
5181 """Removes the node from the cluster.
5185 logging.info("Stopping the node daemon and removing configs from node %s",
5188 modify_ssh_setup = self.cfg.GetClusterInfo().modify_ssh_setup
5190 assert locking.BGL in self.owned_locks(locking.LEVEL_CLUSTER), \
5193 # Promote nodes to master candidate as needed
5194 _AdjustCandidatePool(self, exceptions=[node.name])
5195 self.context.RemoveNode(node.name)
5197 # Run post hooks on the node before it's removed
5198 _RunPostHook(self, node.name)
5200 result = self.rpc.call_node_leave_cluster(node.name, modify_ssh_setup)
5201 msg = result.fail_msg
5203 self.LogWarning("Errors encountered on the remote node while leaving"
5204 " the cluster: %s", msg)
5206 # Remove node from our /etc/hosts
5207 if self.cfg.GetClusterInfo().modify_etc_hosts:
5208 master_node = self.cfg.GetMasterNode()
5209 result = self.rpc.call_etc_hosts_modify(master_node,
5210 constants.ETC_HOSTS_REMOVE,
5212 result.Raise("Can't update hosts file with new host data")
5213 _RedistributeAncillaryFiles(self)
5216 class _NodeQuery(_QueryBase):
5217 FIELDS = query.NODE_FIELDS
5219 def ExpandNames(self, lu):
5220 lu.needed_locks = {}
5221 lu.share_locks = _ShareAll()
5224 self.wanted = _GetWantedNodes(lu, self.names)
5226 self.wanted = locking.ALL_SET
5228 self.do_locking = (self.use_locking and
5229 query.NQ_LIVE in self.requested_data)
5232 # If any non-static field is requested we need to lock the nodes
5233 lu.needed_locks[locking.LEVEL_NODE] = self.wanted
5234 lu.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET
5236 def DeclareLocks(self, lu, level):
5239 def _GetQueryData(self, lu):
5240 """Computes the list of nodes and their attributes.
5243 all_info = lu.cfg.GetAllNodesInfo()
5245 nodenames = self._GetNames(lu, all_info.keys(), locking.LEVEL_NODE)
5247 # Gather data as requested
5248 if query.NQ_LIVE in self.requested_data:
5249 # filter out non-vm_capable nodes
5250 toquery_nodes = [name for name in nodenames if all_info[name].vm_capable]
5252 node_data = lu.rpc.call_node_info(toquery_nodes, [lu.cfg.GetVGName()],
5253 [lu.cfg.GetHypervisorType()])
5254 live_data = dict((name, rpc.MakeLegacyNodeInfo(nresult.payload))
5255 for (name, nresult) in node_data.items()
5256 if not nresult.fail_msg and nresult.payload)
5260 if query.NQ_INST in self.requested_data:
5261 node_to_primary = dict([(name, set()) for name in nodenames])
5262 node_to_secondary = dict([(name, set()) for name in nodenames])
5264 inst_data = lu.cfg.GetAllInstancesInfo()
5266 for inst in inst_data.values():
5267 if inst.primary_node in node_to_primary:
5268 node_to_primary[inst.primary_node].add(inst.name)
5269 for secnode in inst.secondary_nodes:
5270 if secnode in node_to_secondary:
5271 node_to_secondary[secnode].add(inst.name)
5273 node_to_primary = None
5274 node_to_secondary = None
5276 if query.NQ_OOB in self.requested_data:
5277 oob_support = dict((name, bool(_SupportsOob(lu.cfg, node)))
5278 for name, node in all_info.iteritems())
5282 if query.NQ_GROUP in self.requested_data:
5283 groups = lu.cfg.GetAllNodeGroupsInfo()
5287 return query.NodeQueryData([all_info[name] for name in nodenames],
5288 live_data, lu.cfg.GetMasterNode(),
5289 node_to_primary, node_to_secondary, groups,
5290 oob_support, lu.cfg.GetClusterInfo())
5293 class LUNodeQuery(NoHooksLU):
5294 """Logical unit for querying nodes.
5297 # pylint: disable=W0142
5300 def CheckArguments(self):
5301 self.nq = _NodeQuery(qlang.MakeSimpleFilter("name", self.op.names),
5302 self.op.output_fields, self.op.use_locking)
5304 def ExpandNames(self):
5305 self.nq.ExpandNames(self)
5307 def DeclareLocks(self, level):
5308 self.nq.DeclareLocks(self, level)
5310 def Exec(self, feedback_fn):
5311 return self.nq.OldStyleQuery(self)
5314 class LUNodeQueryvols(NoHooksLU):
5315 """Logical unit for getting volumes on node(s).
5319 _FIELDS_DYNAMIC = utils.FieldSet("phys", "vg", "name", "size", "instance")
5320 _FIELDS_STATIC = utils.FieldSet("node")
5322 def CheckArguments(self):
5323 _CheckOutputFields(static=self._FIELDS_STATIC,
5324 dynamic=self._FIELDS_DYNAMIC,
5325 selected=self.op.output_fields)
5327 def ExpandNames(self):
5328 self.share_locks = _ShareAll()
5331 self.needed_locks = {
5332 locking.LEVEL_NODE: _GetWantedNodes(self, self.op.nodes),
5335 self.needed_locks = {
5336 locking.LEVEL_NODE: locking.ALL_SET,
5337 locking.LEVEL_NODE_ALLOC: locking.ALL_SET,
5340 def Exec(self, feedback_fn):
5341 """Computes the list of nodes and their attributes.
5344 nodenames = self.owned_locks(locking.LEVEL_NODE)
5345 volumes = self.rpc.call_node_volumes(nodenames)
5347 ilist = self.cfg.GetAllInstancesInfo()
5348 vol2inst = _MapInstanceDisksToNodes(ilist.values())
5351 for node in nodenames:
5352 nresult = volumes[node]
5355 msg = nresult.fail_msg
5357 self.LogWarning("Can't compute volume data on node %s: %s", node, msg)
5360 node_vols = sorted(nresult.payload,
5361 key=operator.itemgetter("dev"))
5363 for vol in node_vols:
5365 for field in self.op.output_fields:
5368 elif field == "phys":
5372 elif field == "name":
5374 elif field == "size":
5375 val = int(float(vol["size"]))
5376 elif field == "instance":
5377 val = vol2inst.get((node, vol["vg"] + "/" + vol["name"]), "-")
5379 raise errors.ParameterError(field)
5380 node_output.append(str(val))
5382 output.append(node_output)
5387 class LUNodeQueryStorage(NoHooksLU):
5388 """Logical unit for getting information on storage units on node(s).
5391 _FIELDS_STATIC = utils.FieldSet(constants.SF_NODE)
5394 def CheckArguments(self):
5395 _CheckOutputFields(static=self._FIELDS_STATIC,
5396 dynamic=utils.FieldSet(*constants.VALID_STORAGE_FIELDS),
5397 selected=self.op.output_fields)
5399 def ExpandNames(self):
5400 self.share_locks = _ShareAll()
5403 self.needed_locks = {
5404 locking.LEVEL_NODE: _GetWantedNodes(self, self.op.nodes),
5407 self.needed_locks = {
5408 locking.LEVEL_NODE: locking.ALL_SET,
5409 locking.LEVEL_NODE_ALLOC: locking.ALL_SET,
5412 def Exec(self, feedback_fn):
5413 """Computes the list of nodes and their attributes.
5416 self.nodes = self.owned_locks(locking.LEVEL_NODE)
5418 # Always get name to sort by
5419 if constants.SF_NAME in self.op.output_fields:
5420 fields = self.op.output_fields[:]
5422 fields = [constants.SF_NAME] + self.op.output_fields
5424 # Never ask for node or type as it's only known to the LU
5425 for extra in [constants.SF_NODE, constants.SF_TYPE]:
5426 while extra in fields:
5427 fields.remove(extra)
5429 field_idx = dict([(name, idx) for (idx, name) in enumerate(fields)])
5430 name_idx = field_idx[constants.SF_NAME]
5432 st_args = _GetStorageTypeArgs(self.cfg, self.op.storage_type)
5433 data = self.rpc.call_storage_list(self.nodes,
5434 self.op.storage_type, st_args,
5435 self.op.name, fields)
5439 for node in utils.NiceSort(self.nodes):
5440 nresult = data[node]
5444 msg = nresult.fail_msg
5446 self.LogWarning("Can't get storage data from node %s: %s", node, msg)
5449 rows = dict([(row[name_idx], row) for row in nresult.payload])
5451 for name in utils.NiceSort(rows.keys()):
5456 for field in self.op.output_fields:
5457 if field == constants.SF_NODE:
5459 elif field == constants.SF_TYPE:
5460 val = self.op.storage_type
5461 elif field in field_idx:
5462 val = row[field_idx[field]]
5464 raise errors.ParameterError(field)
5473 class _InstanceQuery(_QueryBase):
5474 FIELDS = query.INSTANCE_FIELDS
5476 def ExpandNames(self, lu):
5477 lu.needed_locks = {}
5478 lu.share_locks = _ShareAll()
5481 self.wanted = _GetWantedInstances(lu, self.names)
5483 self.wanted = locking.ALL_SET
5485 self.do_locking = (self.use_locking and
5486 query.IQ_LIVE in self.requested_data)
5488 lu.needed_locks[locking.LEVEL_INSTANCE] = self.wanted
5489 lu.needed_locks[locking.LEVEL_NODEGROUP] = []
5490 lu.needed_locks[locking.LEVEL_NODE] = []
5491 lu.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
5493 self.do_grouplocks = (self.do_locking and
5494 query.IQ_NODES in self.requested_data)
5496 def DeclareLocks(self, lu, level):
5498 if level == locking.LEVEL_NODEGROUP and self.do_grouplocks:
5499 assert not lu.needed_locks[locking.LEVEL_NODEGROUP]
5501 # Lock all groups used by instances optimistically; this requires going
5502 # via the node before it's locked, requiring verification later on
5503 lu.needed_locks[locking.LEVEL_NODEGROUP] = \
5505 for instance_name in lu.owned_locks(locking.LEVEL_INSTANCE)
5506 for group_uuid in lu.cfg.GetInstanceNodeGroups(instance_name))
5507 elif level == locking.LEVEL_NODE:
5508 lu._LockInstancesNodes() # pylint: disable=W0212
5511 def _CheckGroupLocks(lu):
5512 owned_instances = frozenset(lu.owned_locks(locking.LEVEL_INSTANCE))
5513 owned_groups = frozenset(lu.owned_locks(locking.LEVEL_NODEGROUP))
5515 # Check if node groups for locked instances are still correct
5516 for instance_name in owned_instances:
5517 _CheckInstanceNodeGroups(lu.cfg, instance_name, owned_groups)
5519 def _GetQueryData(self, lu):
5520 """Computes the list of instances and their attributes.
5523 if self.do_grouplocks:
5524 self._CheckGroupLocks(lu)
5526 cluster = lu.cfg.GetClusterInfo()
5527 all_info = lu.cfg.GetAllInstancesInfo()
5529 instance_names = self._GetNames(lu, all_info.keys(), locking.LEVEL_INSTANCE)
5531 instance_list = [all_info[name] for name in instance_names]
5532 nodes = frozenset(itertools.chain(*(inst.all_nodes
5533 for inst in instance_list)))
5534 hv_list = list(set([inst.hypervisor for inst in instance_list]))
5537 wrongnode_inst = set()
5539 # Gather data as requested
5540 if self.requested_data & set([query.IQ_LIVE, query.IQ_CONSOLE]):
5542 node_data = lu.rpc.call_all_instances_info(nodes, hv_list)
5544 result = node_data[name]
5546 # offline nodes will be in both lists
5547 assert result.fail_msg
5548 offline_nodes.append(name)
5550 bad_nodes.append(name)
5551 elif result.payload:
5552 for inst in result.payload:
5553 if inst in all_info:
5554 if all_info[inst].primary_node == name:
5555 live_data.update(result.payload)
5557 wrongnode_inst.add(inst)
5559 # orphan instance; we don't list it here as we don't
5560 # handle this case yet in the output of instance listing
5561 logging.warning("Orphan instance '%s' found on node %s",
5563 # else no instance is alive
5567 if query.IQ_DISKUSAGE in self.requested_data:
5568 gmi = ganeti.masterd.instance
5569 disk_usage = dict((inst.name,
5570 gmi.ComputeDiskSize(inst.disk_template,
5571 [{constants.IDISK_SIZE: disk.size}
5572 for disk in inst.disks]))
5573 for inst in instance_list)
5577 if query.IQ_CONSOLE in self.requested_data:
5579 for inst in instance_list:
5580 if inst.name in live_data:
5581 # Instance is running
5582 consinfo[inst.name] = _GetInstanceConsole(cluster, inst)
5584 consinfo[inst.name] = None
5585 assert set(consinfo.keys()) == set(instance_names)
5589 if query.IQ_NODES in self.requested_data:
5590 node_names = set(itertools.chain(*map(operator.attrgetter("all_nodes"),
5592 nodes = dict(lu.cfg.GetMultiNodeInfo(node_names))
5593 groups = dict((uuid, lu.cfg.GetNodeGroup(uuid))
5594 for uuid in set(map(operator.attrgetter("group"),
5600 return query.InstanceQueryData(instance_list, lu.cfg.GetClusterInfo(),
5601 disk_usage, offline_nodes, bad_nodes,
5602 live_data, wrongnode_inst, consinfo,
5606 class LUQuery(NoHooksLU):
5607 """Query for resources/items of a certain kind.
5610 # pylint: disable=W0142
5613 def CheckArguments(self):
5614 qcls = _GetQueryImplementation(self.op.what)
5616 self.impl = qcls(self.op.qfilter, self.op.fields, self.op.use_locking)
5618 def ExpandNames(self):
5619 self.impl.ExpandNames(self)
5621 def DeclareLocks(self, level):
5622 self.impl.DeclareLocks(self, level)
5624 def Exec(self, feedback_fn):
5625 return self.impl.NewStyleQuery(self)
5628 class LUQueryFields(NoHooksLU):
5629 """Query for resources/items of a certain kind.
5632 # pylint: disable=W0142
5635 def CheckArguments(self):
5636 self.qcls = _GetQueryImplementation(self.op.what)
5638 def ExpandNames(self):
5639 self.needed_locks = {}
5641 def Exec(self, feedback_fn):
5642 return query.QueryFields(self.qcls.FIELDS, self.op.fields)
5645 class LUNodeModifyStorage(NoHooksLU):
5646 """Logical unit for modifying a storage volume on a node.
5651 def CheckArguments(self):
5652 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
5654 storage_type = self.op.storage_type
5657 modifiable = constants.MODIFIABLE_STORAGE_FIELDS[storage_type]
5659 raise errors.OpPrereqError("Storage units of type '%s' can not be"
5660 " modified" % storage_type,
5663 diff = set(self.op.changes.keys()) - modifiable
5665 raise errors.OpPrereqError("The following fields can not be modified for"
5666 " storage units of type '%s': %r" %
5667 (storage_type, list(diff)),
5670 def ExpandNames(self):
5671 self.needed_locks = {
5672 locking.LEVEL_NODE: self.op.node_name,
5675 def Exec(self, feedback_fn):
5676 """Computes the list of nodes and their attributes.
5679 st_args = _GetStorageTypeArgs(self.cfg, self.op.storage_type)
5680 result = self.rpc.call_storage_modify(self.op.node_name,
5681 self.op.storage_type, st_args,
5682 self.op.name, self.op.changes)
5683 result.Raise("Failed to modify storage unit '%s' on %s" %
5684 (self.op.name, self.op.node_name))
5687 class LUNodeAdd(LogicalUnit):
5688 """Logical unit for adding node to the cluster.
5692 HTYPE = constants.HTYPE_NODE
5693 _NFLAGS = ["master_capable", "vm_capable"]
5695 def CheckArguments(self):
5696 self.primary_ip_family = self.cfg.GetPrimaryIPFamily()
5697 # validate/normalize the node name
5698 self.hostname = netutils.GetHostname(name=self.op.node_name,
5699 family=self.primary_ip_family)
5700 self.op.node_name = self.hostname.name
5702 if self.op.readd and self.op.node_name == self.cfg.GetMasterNode():
5703 raise errors.OpPrereqError("Cannot readd the master node",
5706 if self.op.readd and self.op.group:
5707 raise errors.OpPrereqError("Cannot pass a node group when a node is"
5708 " being readded", errors.ECODE_INVAL)
5710 def BuildHooksEnv(self):
5713 This will run on all nodes before, and on all nodes + the new node after.
5717 "OP_TARGET": self.op.node_name,
5718 "NODE_NAME": self.op.node_name,
5719 "NODE_PIP": self.op.primary_ip,
5720 "NODE_SIP": self.op.secondary_ip,
5721 "MASTER_CAPABLE": str(self.op.master_capable),
5722 "VM_CAPABLE": str(self.op.vm_capable),
5725 def BuildHooksNodes(self):
5726 """Build hooks nodes.
5729 # Exclude added node
5730 pre_nodes = list(set(self.cfg.GetNodeList()) - set([self.op.node_name]))
5731 post_nodes = pre_nodes + [self.op.node_name, ]
5733 return (pre_nodes, post_nodes)
5735 def CheckPrereq(self):
5736 """Check prerequisites.
5739 - the new node is not already in the config
5741 - its parameters (single/dual homed) matches the cluster
5743 Any errors are signaled by raising errors.OpPrereqError.
5747 hostname = self.hostname
5748 node = hostname.name
5749 primary_ip = self.op.primary_ip = hostname.ip
5750 if self.op.secondary_ip is None:
5751 if self.primary_ip_family == netutils.IP6Address.family:
5752 raise errors.OpPrereqError("When using a IPv6 primary address, a valid"
5753 " IPv4 address must be given as secondary",
5755 self.op.secondary_ip = primary_ip
5757 secondary_ip = self.op.secondary_ip
5758 if not netutils.IP4Address.IsValid(secondary_ip):
5759 raise errors.OpPrereqError("Secondary IP (%s) needs to be a valid IPv4"
5760 " address" % secondary_ip, errors.ECODE_INVAL)
5762 node_list = cfg.GetNodeList()
5763 if not self.op.readd and node in node_list:
5764 raise errors.OpPrereqError("Node %s is already in the configuration" %
5765 node, errors.ECODE_EXISTS)
5766 elif self.op.readd and node not in node_list:
5767 raise errors.OpPrereqError("Node %s is not in the configuration" % node,
5770 self.changed_primary_ip = False
5772 for existing_node_name, existing_node in cfg.GetMultiNodeInfo(node_list):
5773 if self.op.readd and node == existing_node_name:
5774 if existing_node.secondary_ip != secondary_ip:
5775 raise errors.OpPrereqError("Readded node doesn't have the same IP"
5776 " address configuration as before",
5778 if existing_node.primary_ip != primary_ip:
5779 self.changed_primary_ip = True
5783 if (existing_node.primary_ip == primary_ip or
5784 existing_node.secondary_ip == primary_ip or
5785 existing_node.primary_ip == secondary_ip or
5786 existing_node.secondary_ip == secondary_ip):
5787 raise errors.OpPrereqError("New node ip address(es) conflict with"
5788 " existing node %s" % existing_node.name,
5789 errors.ECODE_NOTUNIQUE)
5791 # After this 'if' block, None is no longer a valid value for the
5792 # _capable op attributes
5794 old_node = self.cfg.GetNodeInfo(node)
5795 assert old_node is not None, "Can't retrieve locked node %s" % node
5796 for attr in self._NFLAGS:
5797 if getattr(self.op, attr) is None:
5798 setattr(self.op, attr, getattr(old_node, attr))
5800 for attr in self._NFLAGS:
5801 if getattr(self.op, attr) is None:
5802 setattr(self.op, attr, True)
5804 if self.op.readd and not self.op.vm_capable:
5805 pri, sec = cfg.GetNodeInstances(node)
5807 raise errors.OpPrereqError("Node %s being re-added with vm_capable"
5808 " flag set to false, but it already holds"
5809 " instances" % node,
5812 # check that the type of the node (single versus dual homed) is the
5813 # same as for the master
5814 myself = cfg.GetNodeInfo(self.cfg.GetMasterNode())
5815 master_singlehomed = myself.secondary_ip == myself.primary_ip
5816 newbie_singlehomed = secondary_ip == primary_ip
5817 if master_singlehomed != newbie_singlehomed:
5818 if master_singlehomed:
5819 raise errors.OpPrereqError("The master has no secondary ip but the"
5820 " new node has one",
5823 raise errors.OpPrereqError("The master has a secondary ip but the"
5824 " new node doesn't have one",
5827 # checks reachability
5828 if not netutils.TcpPing(primary_ip, constants.DEFAULT_NODED_PORT):
5829 raise errors.OpPrereqError("Node not reachable by ping",
5830 errors.ECODE_ENVIRON)
5832 if not newbie_singlehomed:
5833 # check reachability from my secondary ip to newbie's secondary ip
5834 if not netutils.TcpPing(secondary_ip, constants.DEFAULT_NODED_PORT,
5835 source=myself.secondary_ip):
5836 raise errors.OpPrereqError("Node secondary ip not reachable by TCP"
5837 " based ping to node daemon port",
5838 errors.ECODE_ENVIRON)
5845 if self.op.master_capable:
5846 self.master_candidate = _DecideSelfPromotion(self, exceptions=exceptions)
5848 self.master_candidate = False
5851 self.new_node = old_node
5853 node_group = cfg.LookupNodeGroup(self.op.group)
5854 self.new_node = objects.Node(name=node,
5855 primary_ip=primary_ip,
5856 secondary_ip=secondary_ip,
5857 master_candidate=self.master_candidate,
5858 offline=False, drained=False,
5861 if self.op.ndparams:
5862 utils.ForceDictType(self.op.ndparams, constants.NDS_PARAMETER_TYPES)
5864 if self.op.hv_state:
5865 self.new_hv_state = _MergeAndVerifyHvState(self.op.hv_state, None)
5867 if self.op.disk_state:
5868 self.new_disk_state = _MergeAndVerifyDiskState(self.op.disk_state, None)
5870 # TODO: If we need to have multiple DnsOnlyRunner we probably should make
5871 # it a property on the base class.
5872 result = rpc.DnsOnlyRunner().call_version([node])[node]
5873 result.Raise("Can't get version information from node %s" % node)
5874 if constants.PROTOCOL_VERSION == result.payload:
5875 logging.info("Communication to node %s fine, sw version %s match",
5876 node, result.payload)
5878 raise errors.OpPrereqError("Version mismatch master version %s,"
5879 " node version %s" %
5880 (constants.PROTOCOL_VERSION, result.payload),
5881 errors.ECODE_ENVIRON)
5883 def Exec(self, feedback_fn):
5884 """Adds the new node to the cluster.
5887 new_node = self.new_node
5888 node = new_node.name
5890 assert locking.BGL in self.owned_locks(locking.LEVEL_CLUSTER), \
5893 # We adding a new node so we assume it's powered
5894 new_node.powered = True
5896 # for re-adds, reset the offline/drained/master-candidate flags;
5897 # we need to reset here, otherwise offline would prevent RPC calls
5898 # later in the procedure; this also means that if the re-add
5899 # fails, we are left with a non-offlined, broken node
5901 new_node.drained = new_node.offline = False # pylint: disable=W0201
5902 self.LogInfo("Readding a node, the offline/drained flags were reset")
5903 # if we demote the node, we do cleanup later in the procedure
5904 new_node.master_candidate = self.master_candidate
5905 if self.changed_primary_ip:
5906 new_node.primary_ip = self.op.primary_ip
5908 # copy the master/vm_capable flags
5909 for attr in self._NFLAGS:
5910 setattr(new_node, attr, getattr(self.op, attr))
5912 # notify the user about any possible mc promotion
5913 if new_node.master_candidate:
5914 self.LogInfo("Node will be a master candidate")
5916 if self.op.ndparams:
5917 new_node.ndparams = self.op.ndparams
5919 new_node.ndparams = {}
5921 if self.op.hv_state:
5922 new_node.hv_state_static = self.new_hv_state
5924 if self.op.disk_state:
5925 new_node.disk_state_static = self.new_disk_state
5927 # Add node to our /etc/hosts, and add key to known_hosts
5928 if self.cfg.GetClusterInfo().modify_etc_hosts:
5929 master_node = self.cfg.GetMasterNode()
5930 result = self.rpc.call_etc_hosts_modify(master_node,
5931 constants.ETC_HOSTS_ADD,
5934 result.Raise("Can't update hosts file with new host data")
5936 if new_node.secondary_ip != new_node.primary_ip:
5937 _CheckNodeHasSecondaryIP(self, new_node.name, new_node.secondary_ip,
5940 node_verify_list = [self.cfg.GetMasterNode()]
5941 node_verify_param = {
5942 constants.NV_NODELIST: ([node], {}),
5943 # TODO: do a node-net-test as well?
5946 result = self.rpc.call_node_verify(node_verify_list, node_verify_param,
5947 self.cfg.GetClusterName())
5948 for verifier in node_verify_list:
5949 result[verifier].Raise("Cannot communicate with node %s" % verifier)
5950 nl_payload = result[verifier].payload[constants.NV_NODELIST]
5952 for failed in nl_payload:
5953 feedback_fn("ssh/hostname verification failed"
5954 " (checking from %s): %s" %
5955 (verifier, nl_payload[failed]))
5956 raise errors.OpExecError("ssh/hostname verification failed")
5959 _RedistributeAncillaryFiles(self)
5960 self.context.ReaddNode(new_node)
5961 # make sure we redistribute the config
5962 self.cfg.Update(new_node, feedback_fn)
5963 # and make sure the new node will not have old files around
5964 if not new_node.master_candidate:
5965 result = self.rpc.call_node_demote_from_mc(new_node.name)
5966 msg = result.fail_msg
5968 self.LogWarning("Node failed to demote itself from master"
5969 " candidate status: %s" % msg)
5971 _RedistributeAncillaryFiles(self, additional_nodes=[node],
5972 additional_vm=self.op.vm_capable)
5973 self.context.AddNode(new_node, self.proc.GetECId())
5976 class LUNodeSetParams(LogicalUnit):
5977 """Modifies the parameters of a node.
5979 @cvar _F2R: a dictionary from tuples of flags (mc, drained, offline)
5980 to the node role (as _ROLE_*)
5981 @cvar _R2F: a dictionary from node role to tuples of flags
5982 @cvar _FLAGS: a list of attribute names corresponding to the flags
5985 HPATH = "node-modify"
5986 HTYPE = constants.HTYPE_NODE
5988 (_ROLE_CANDIDATE, _ROLE_DRAINED, _ROLE_OFFLINE, _ROLE_REGULAR) = range(4)
5990 (True, False, False): _ROLE_CANDIDATE,
5991 (False, True, False): _ROLE_DRAINED,
5992 (False, False, True): _ROLE_OFFLINE,
5993 (False, False, False): _ROLE_REGULAR,
5995 _R2F = dict((v, k) for k, v in _F2R.items())
5996 _FLAGS = ["master_candidate", "drained", "offline"]
5998 def CheckArguments(self):
5999 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
6000 all_mods = [self.op.offline, self.op.master_candidate, self.op.drained,
6001 self.op.master_capable, self.op.vm_capable,
6002 self.op.secondary_ip, self.op.ndparams, self.op.hv_state,
6004 if all_mods.count(None) == len(all_mods):
6005 raise errors.OpPrereqError("Please pass at least one modification",
6007 if all_mods.count(True) > 1:
6008 raise errors.OpPrereqError("Can't set the node into more than one"
6009 " state at the same time",
6012 # Boolean value that tells us whether we might be demoting from MC
6013 self.might_demote = (self.op.master_candidate is False or
6014 self.op.offline is True or
6015 self.op.drained is True or
6016 self.op.master_capable is False)
6018 if self.op.secondary_ip:
6019 if not netutils.IP4Address.IsValid(self.op.secondary_ip):
6020 raise errors.OpPrereqError("Secondary IP (%s) needs to be a valid IPv4"
6021 " address" % self.op.secondary_ip,
6024 self.lock_all = self.op.auto_promote and self.might_demote
6025 self.lock_instances = self.op.secondary_ip is not None
6027 def _InstanceFilter(self, instance):
6028 """Filter for getting affected instances.
6031 return (instance.disk_template in constants.DTS_INT_MIRROR and
6032 self.op.node_name in instance.all_nodes)
6034 def ExpandNames(self):
6036 self.needed_locks = {
6037 locking.LEVEL_NODE: locking.ALL_SET,
6039 # Block allocations when all nodes are locked
6040 locking.LEVEL_NODE_ALLOC: locking.ALL_SET,
6043 self.needed_locks = {
6044 locking.LEVEL_NODE: self.op.node_name,
6047 # Since modifying a node can have severe effects on currently running
6048 # operations the resource lock is at least acquired in shared mode
6049 self.needed_locks[locking.LEVEL_NODE_RES] = \
6050 self.needed_locks[locking.LEVEL_NODE]
6052 # Get all locks except nodes in shared mode; they are not used for anything
6053 # but read-only access
6054 self.share_locks = _ShareAll()
6055 self.share_locks[locking.LEVEL_NODE] = 0
6056 self.share_locks[locking.LEVEL_NODE_RES] = 0
6057 self.share_locks[locking.LEVEL_NODE_ALLOC] = 0
6059 if self.lock_instances:
6060 self.needed_locks[locking.LEVEL_INSTANCE] = \
6061 frozenset(self.cfg.GetInstancesInfoByFilter(self._InstanceFilter))
6063 def BuildHooksEnv(self):
6066 This runs on the master node.
6070 "OP_TARGET": self.op.node_name,
6071 "MASTER_CANDIDATE": str(self.op.master_candidate),
6072 "OFFLINE": str(self.op.offline),
6073 "DRAINED": str(self.op.drained),
6074 "MASTER_CAPABLE": str(self.op.master_capable),
6075 "VM_CAPABLE": str(self.op.vm_capable),
6078 def BuildHooksNodes(self):
6079 """Build hooks nodes.
6082 nl = [self.cfg.GetMasterNode(), self.op.node_name]
6085 def CheckPrereq(self):
6086 """Check prerequisites.
6088 This only checks the instance list against the existing names.
6091 node = self.node = self.cfg.GetNodeInfo(self.op.node_name)
6093 if self.lock_instances:
6094 affected_instances = \
6095 self.cfg.GetInstancesInfoByFilter(self._InstanceFilter)
6097 # Verify instance locks
6098 owned_instances = self.owned_locks(locking.LEVEL_INSTANCE)
6099 wanted_instances = frozenset(affected_instances.keys())
6100 if wanted_instances - owned_instances:
6101 raise errors.OpPrereqError("Instances affected by changing node %s's"
6102 " secondary IP address have changed since"
6103 " locks were acquired, wanted '%s', have"
6104 " '%s'; retry the operation" %
6106 utils.CommaJoin(wanted_instances),
6107 utils.CommaJoin(owned_instances)),
6110 affected_instances = None
6112 if (self.op.master_candidate is not None or
6113 self.op.drained is not None or
6114 self.op.offline is not None):
6115 # we can't change the master's node flags
6116 if self.op.node_name == self.cfg.GetMasterNode():
6117 raise errors.OpPrereqError("The master role can be changed"
6118 " only via master-failover",
6121 if self.op.master_candidate and not node.master_capable:
6122 raise errors.OpPrereqError("Node %s is not master capable, cannot make"
6123 " it a master candidate" % node.name,
6126 if self.op.vm_capable is False:
6127 (ipri, isec) = self.cfg.GetNodeInstances(self.op.node_name)
6129 raise errors.OpPrereqError("Node %s hosts instances, cannot unset"
6130 " the vm_capable flag" % node.name,
6133 if node.master_candidate and self.might_demote and not self.lock_all:
6134 assert not self.op.auto_promote, "auto_promote set but lock_all not"
6135 # check if after removing the current node, we're missing master
6137 (mc_remaining, mc_should, _) = \
6138 self.cfg.GetMasterCandidateStats(exceptions=[node.name])
6139 if mc_remaining < mc_should:
6140 raise errors.OpPrereqError("Not enough master candidates, please"
6141 " pass auto promote option to allow"
6142 " promotion (--auto-promote or RAPI"
6143 " auto_promote=True)", errors.ECODE_STATE)
6145 self.old_flags = old_flags = (node.master_candidate,
6146 node.drained, node.offline)
6147 assert old_flags in self._F2R, "Un-handled old flags %s" % str(old_flags)
6148 self.old_role = old_role = self._F2R[old_flags]
6150 # Check for ineffective changes
6151 for attr in self._FLAGS:
6152 if (getattr(self.op, attr) is False and getattr(node, attr) is False):
6153 self.LogInfo("Ignoring request to unset flag %s, already unset", attr)
6154 setattr(self.op, attr, None)
6156 # Past this point, any flag change to False means a transition
6157 # away from the respective state, as only real changes are kept
6159 # TODO: We might query the real power state if it supports OOB
6160 if _SupportsOob(self.cfg, node):
6161 if self.op.offline is False and not (node.powered or
6162 self.op.powered is True):
6163 raise errors.OpPrereqError(("Node %s needs to be turned on before its"
6164 " offline status can be reset") %
6165 self.op.node_name, errors.ECODE_STATE)
6166 elif self.op.powered is not None:
6167 raise errors.OpPrereqError(("Unable to change powered state for node %s"
6168 " as it does not support out-of-band"
6169 " handling") % self.op.node_name,
6172 # If we're being deofflined/drained, we'll MC ourself if needed
6173 if (self.op.drained is False or self.op.offline is False or
6174 (self.op.master_capable and not node.master_capable)):
6175 if _DecideSelfPromotion(self):
6176 self.op.master_candidate = True
6177 self.LogInfo("Auto-promoting node to master candidate")
6179 # If we're no longer master capable, we'll demote ourselves from MC
6180 if self.op.master_capable is False and node.master_candidate:
6181 self.LogInfo("Demoting from master candidate")
6182 self.op.master_candidate = False
6185 assert [getattr(self.op, attr) for attr in self._FLAGS].count(True) <= 1
6186 if self.op.master_candidate:
6187 new_role = self._ROLE_CANDIDATE
6188 elif self.op.drained:
6189 new_role = self._ROLE_DRAINED
6190 elif self.op.offline:
6191 new_role = self._ROLE_OFFLINE
6192 elif False in [self.op.master_candidate, self.op.drained, self.op.offline]:
6193 # False is still in new flags, which means we're un-setting (the
6195 new_role = self._ROLE_REGULAR
6196 else: # no new flags, nothing, keep old role
6199 self.new_role = new_role
6201 if old_role == self._ROLE_OFFLINE and new_role != old_role:
6202 # Trying to transition out of offline status
6203 result = self.rpc.call_version([node.name])[node.name]
6205 raise errors.OpPrereqError("Node %s is being de-offlined but fails"
6206 " to report its version: %s" %
6207 (node.name, result.fail_msg),
6210 self.LogWarning("Transitioning node from offline to online state"
6211 " without using re-add. Please make sure the node"
6214 # When changing the secondary ip, verify if this is a single-homed to
6215 # multi-homed transition or vice versa, and apply the relevant
6217 if self.op.secondary_ip:
6218 # Ok even without locking, because this can't be changed by any LU
6219 master = self.cfg.GetNodeInfo(self.cfg.GetMasterNode())
6220 master_singlehomed = master.secondary_ip == master.primary_ip
6221 if master_singlehomed and self.op.secondary_ip != node.primary_ip:
6222 if self.op.force and node.name == master.name:
6223 self.LogWarning("Transitioning from single-homed to multi-homed"
6224 " cluster; all nodes will require a secondary IP"
6227 raise errors.OpPrereqError("Changing the secondary ip on a"
6228 " single-homed cluster requires the"
6229 " --force option to be passed, and the"
6230 " target node to be the master",
6232 elif not master_singlehomed and self.op.secondary_ip == node.primary_ip:
6233 if self.op.force and node.name == master.name:
6234 self.LogWarning("Transitioning from multi-homed to single-homed"
6235 " cluster; secondary IP addresses will have to be"
6238 raise errors.OpPrereqError("Cannot set the secondary IP to be the"
6239 " same as the primary IP on a multi-homed"
6240 " cluster, unless the --force option is"
6241 " passed, and the target node is the"
6242 " master", errors.ECODE_INVAL)
6244 assert not (frozenset(affected_instances) -
6245 self.owned_locks(locking.LEVEL_INSTANCE))
6248 if affected_instances:
6249 msg = ("Cannot change secondary IP address: offline node has"
6250 " instances (%s) configured to use it" %
6251 utils.CommaJoin(affected_instances.keys()))
6252 raise errors.OpPrereqError(msg, errors.ECODE_STATE)
6254 # On online nodes, check that no instances are running, and that
6255 # the node has the new ip and we can reach it.
6256 for instance in affected_instances.values():
6257 _CheckInstanceState(self, instance, INSTANCE_DOWN,
6258 msg="cannot change secondary ip")
6260 _CheckNodeHasSecondaryIP(self, node.name, self.op.secondary_ip, True)
6261 if master.name != node.name:
6262 # check reachability from master secondary ip to new secondary ip
6263 if not netutils.TcpPing(self.op.secondary_ip,
6264 constants.DEFAULT_NODED_PORT,
6265 source=master.secondary_ip):
6266 raise errors.OpPrereqError("Node secondary ip not reachable by TCP"
6267 " based ping to node daemon port",
6268 errors.ECODE_ENVIRON)
6270 if self.op.ndparams:
6271 new_ndparams = _GetUpdatedParams(self.node.ndparams, self.op.ndparams)
6272 utils.ForceDictType(new_ndparams, constants.NDS_PARAMETER_TYPES)
6273 self.new_ndparams = new_ndparams
6275 if self.op.hv_state:
6276 self.new_hv_state = _MergeAndVerifyHvState(self.op.hv_state,
6277 self.node.hv_state_static)
6279 if self.op.disk_state:
6280 self.new_disk_state = \
6281 _MergeAndVerifyDiskState(self.op.disk_state,
6282 self.node.disk_state_static)
6284 def Exec(self, feedback_fn):
6289 old_role = self.old_role
6290 new_role = self.new_role
6294 if self.op.ndparams:
6295 node.ndparams = self.new_ndparams
6297 if self.op.powered is not None:
6298 node.powered = self.op.powered
6300 if self.op.hv_state:
6301 node.hv_state_static = self.new_hv_state
6303 if self.op.disk_state:
6304 node.disk_state_static = self.new_disk_state
6306 for attr in ["master_capable", "vm_capable"]:
6307 val = getattr(self.op, attr)
6309 setattr(node, attr, val)
6310 result.append((attr, str(val)))
6312 if new_role != old_role:
6313 # Tell the node to demote itself, if no longer MC and not offline
6314 if old_role == self._ROLE_CANDIDATE and new_role != self._ROLE_OFFLINE:
6315 msg = self.rpc.call_node_demote_from_mc(node.name).fail_msg
6317 self.LogWarning("Node failed to demote itself: %s", msg)
6319 new_flags = self._R2F[new_role]
6320 for of, nf, desc in zip(self.old_flags, new_flags, self._FLAGS):
6322 result.append((desc, str(nf)))
6323 (node.master_candidate, node.drained, node.offline) = new_flags
6325 # we locked all nodes, we adjust the CP before updating this node
6327 _AdjustCandidatePool(self, [node.name])
6329 if self.op.secondary_ip:
6330 node.secondary_ip = self.op.secondary_ip
6331 result.append(("secondary_ip", self.op.secondary_ip))
6333 # this will trigger configuration file update, if needed
6334 self.cfg.Update(node, feedback_fn)
6336 # this will trigger job queue propagation or cleanup if the mc
6338 if [old_role, new_role].count(self._ROLE_CANDIDATE) == 1:
6339 self.context.ReaddNode(node)
6344 class LUNodePowercycle(NoHooksLU):
6345 """Powercycles a node.
6350 def CheckArguments(self):
6351 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
6352 if self.op.node_name == self.cfg.GetMasterNode() and not self.op.force:
6353 raise errors.OpPrereqError("The node is the master and the force"
6354 " parameter was not set",
6357 def ExpandNames(self):
6358 """Locking for PowercycleNode.
6360 This is a last-resort option and shouldn't block on other
6361 jobs. Therefore, we grab no locks.
6364 self.needed_locks = {}
6366 def Exec(self, feedback_fn):
6370 result = self.rpc.call_node_powercycle(self.op.node_name,
6371 self.cfg.GetHypervisorType())
6372 result.Raise("Failed to schedule the reboot")
6373 return result.payload
6376 class LUClusterQuery(NoHooksLU):
6377 """Query cluster configuration.
6382 def ExpandNames(self):
6383 self.needed_locks = {}
6385 def Exec(self, feedback_fn):
6386 """Return cluster config.
6389 cluster = self.cfg.GetClusterInfo()
6392 # Filter just for enabled hypervisors
6393 for os_name, hv_dict in cluster.os_hvp.items():
6394 os_hvp[os_name] = {}
6395 for hv_name, hv_params in hv_dict.items():
6396 if hv_name in cluster.enabled_hypervisors:
6397 os_hvp[os_name][hv_name] = hv_params
6399 # Convert ip_family to ip_version
6400 primary_ip_version = constants.IP4_VERSION
6401 if cluster.primary_ip_family == netutils.IP6Address.family:
6402 primary_ip_version = constants.IP6_VERSION
6405 "software_version": constants.RELEASE_VERSION,
6406 "protocol_version": constants.PROTOCOL_VERSION,
6407 "config_version": constants.CONFIG_VERSION,
6408 "os_api_version": max(constants.OS_API_VERSIONS),
6409 "export_version": constants.EXPORT_VERSION,
6410 "architecture": runtime.GetArchInfo(),
6411 "name": cluster.cluster_name,
6412 "master": cluster.master_node,
6413 "default_hypervisor": cluster.primary_hypervisor,
6414 "enabled_hypervisors": cluster.enabled_hypervisors,
6415 "hvparams": dict([(hypervisor_name, cluster.hvparams[hypervisor_name])
6416 for hypervisor_name in cluster.enabled_hypervisors]),
6418 "beparams": cluster.beparams,
6419 "osparams": cluster.osparams,
6420 "ipolicy": cluster.ipolicy,
6421 "nicparams": cluster.nicparams,
6422 "ndparams": cluster.ndparams,
6423 "diskparams": cluster.diskparams,
6424 "candidate_pool_size": cluster.candidate_pool_size,
6425 "master_netdev": cluster.master_netdev,
6426 "master_netmask": cluster.master_netmask,
6427 "use_external_mip_script": cluster.use_external_mip_script,
6428 "volume_group_name": cluster.volume_group_name,
6429 "drbd_usermode_helper": cluster.drbd_usermode_helper,
6430 "file_storage_dir": cluster.file_storage_dir,
6431 "shared_file_storage_dir": cluster.shared_file_storage_dir,
6432 "maintain_node_health": cluster.maintain_node_health,
6433 "ctime": cluster.ctime,
6434 "mtime": cluster.mtime,
6435 "uuid": cluster.uuid,
6436 "tags": list(cluster.GetTags()),
6437 "uid_pool": cluster.uid_pool,
6438 "default_iallocator": cluster.default_iallocator,
6439 "reserved_lvs": cluster.reserved_lvs,
6440 "primary_ip_version": primary_ip_version,
6441 "prealloc_wipe_disks": cluster.prealloc_wipe_disks,
6442 "hidden_os": cluster.hidden_os,
6443 "blacklisted_os": cluster.blacklisted_os,
6449 class LUClusterConfigQuery(NoHooksLU):
6450 """Return configuration values.
6455 def CheckArguments(self):
6456 self.cq = _ClusterQuery(None, self.op.output_fields, False)
6458 def ExpandNames(self):
6459 self.cq.ExpandNames(self)
6461 def DeclareLocks(self, level):
6462 self.cq.DeclareLocks(self, level)
6464 def Exec(self, feedback_fn):
6465 result = self.cq.OldStyleQuery(self)
6467 assert len(result) == 1
6472 class _ClusterQuery(_QueryBase):
6473 FIELDS = query.CLUSTER_FIELDS
6475 #: Do not sort (there is only one item)
6478 def ExpandNames(self, lu):
6479 lu.needed_locks = {}
6481 # The following variables interact with _QueryBase._GetNames
6482 self.wanted = locking.ALL_SET
6483 self.do_locking = self.use_locking
6486 raise errors.OpPrereqError("Can not use locking for cluster queries",
6489 def DeclareLocks(self, lu, level):
6492 def _GetQueryData(self, lu):
6493 """Computes the list of nodes and their attributes.
6496 # Locking is not used
6497 assert not (compat.any(lu.glm.is_owned(level)
6498 for level in locking.LEVELS
6499 if level != locking.LEVEL_CLUSTER) or
6500 self.do_locking or self.use_locking)
6502 if query.CQ_CONFIG in self.requested_data:
6503 cluster = lu.cfg.GetClusterInfo()
6505 cluster = NotImplemented
6507 if query.CQ_QUEUE_DRAINED in self.requested_data:
6508 drain_flag = os.path.exists(pathutils.JOB_QUEUE_DRAIN_FILE)
6510 drain_flag = NotImplemented
6512 if query.CQ_WATCHER_PAUSE in self.requested_data:
6513 master_name = lu.cfg.GetMasterNode()
6515 result = lu.rpc.call_get_watcher_pause(master_name)
6516 result.Raise("Can't retrieve watcher pause from master node '%s'" %
6519 watcher_pause = result.payload
6521 watcher_pause = NotImplemented
6523 return query.ClusterQueryData(cluster, drain_flag, watcher_pause)
6526 class LUInstanceActivateDisks(NoHooksLU):
6527 """Bring up an instance's disks.
6532 def ExpandNames(self):
6533 self._ExpandAndLockInstance()
6534 self.needed_locks[locking.LEVEL_NODE] = []
6535 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
6537 def DeclareLocks(self, level):
6538 if level == locking.LEVEL_NODE:
6539 self._LockInstancesNodes()
6541 def CheckPrereq(self):
6542 """Check prerequisites.
6544 This checks that the instance is in the cluster.
6547 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6548 assert self.instance is not None, \
6549 "Cannot retrieve locked instance %s" % self.op.instance_name
6550 _CheckNodeOnline(self, self.instance.primary_node)
6552 def Exec(self, feedback_fn):
6553 """Activate the disks.
6556 disks_ok, disks_info = \
6557 _AssembleInstanceDisks(self, self.instance,
6558 ignore_size=self.op.ignore_size)
6560 raise errors.OpExecError("Cannot activate block devices")
6562 if self.op.wait_for_sync:
6563 if not _WaitForSync(self, self.instance):
6564 raise errors.OpExecError("Some disks of the instance are degraded!")
6569 def _AssembleInstanceDisks(lu, instance, disks=None, ignore_secondaries=False,
6571 """Prepare the block devices for an instance.
6573 This sets up the block devices on all nodes.
6575 @type lu: L{LogicalUnit}
6576 @param lu: the logical unit on whose behalf we execute
6577 @type instance: L{objects.Instance}
6578 @param instance: the instance for whose disks we assemble
6579 @type disks: list of L{objects.Disk} or None
6580 @param disks: which disks to assemble (or all, if None)
6581 @type ignore_secondaries: boolean
6582 @param ignore_secondaries: if true, errors on secondary nodes
6583 won't result in an error return from the function
6584 @type ignore_size: boolean
6585 @param ignore_size: if true, the current known size of the disk
6586 will not be used during the disk activation, useful for cases
6587 when the size is wrong
6588 @return: False if the operation failed, otherwise a list of
6589 (host, instance_visible_name, node_visible_name)
6590 with the mapping from node devices to instance devices
6595 iname = instance.name
6596 disks = _ExpandCheckDisks(instance, disks)
6598 # With the two passes mechanism we try to reduce the window of
6599 # opportunity for the race condition of switching DRBD to primary
6600 # before handshaking occured, but we do not eliminate it
6602 # The proper fix would be to wait (with some limits) until the
6603 # connection has been made and drbd transitions from WFConnection
6604 # into any other network-connected state (Connected, SyncTarget,
6607 # 1st pass, assemble on all nodes in secondary mode
6608 for idx, inst_disk in enumerate(disks):
6609 for node, node_disk in inst_disk.ComputeNodeTree(instance.primary_node):
6611 node_disk = node_disk.Copy()
6612 node_disk.UnsetSize()
6613 lu.cfg.SetDiskID(node_disk, node)
6614 result = lu.rpc.call_blockdev_assemble(node, (node_disk, instance), iname,
6616 msg = result.fail_msg
6618 is_offline_secondary = (node in instance.secondary_nodes and
6620 lu.LogWarning("Could not prepare block device %s on node %s"
6621 " (is_primary=False, pass=1): %s",
6622 inst_disk.iv_name, node, msg)
6623 if not (ignore_secondaries or is_offline_secondary):
6626 # FIXME: race condition on drbd migration to primary
6628 # 2nd pass, do only the primary node
6629 for idx, inst_disk in enumerate(disks):
6632 for node, node_disk in inst_disk.ComputeNodeTree(instance.primary_node):
6633 if node != instance.primary_node:
6636 node_disk = node_disk.Copy()
6637 node_disk.UnsetSize()
6638 lu.cfg.SetDiskID(node_disk, node)
6639 result = lu.rpc.call_blockdev_assemble(node, (node_disk, instance), iname,
6641 msg = result.fail_msg
6643 lu.LogWarning("Could not prepare block device %s on node %s"
6644 " (is_primary=True, pass=2): %s",
6645 inst_disk.iv_name, node, msg)
6648 dev_path = result.payload
6650 device_info.append((instance.primary_node, inst_disk.iv_name, dev_path))
6652 # leave the disks configured for the primary node
6653 # this is a workaround that would be fixed better by
6654 # improving the logical/physical id handling
6656 lu.cfg.SetDiskID(disk, instance.primary_node)
6658 return disks_ok, device_info
6661 def _StartInstanceDisks(lu, instance, force):
6662 """Start the disks of an instance.
6665 disks_ok, _ = _AssembleInstanceDisks(lu, instance,
6666 ignore_secondaries=force)
6668 _ShutdownInstanceDisks(lu, instance)
6669 if force is not None and not force:
6671 hint=("If the message above refers to a secondary node,"
6672 " you can retry the operation using '--force'"))
6673 raise errors.OpExecError("Disk consistency error")
6676 class LUInstanceDeactivateDisks(NoHooksLU):
6677 """Shutdown an instance's disks.
6682 def ExpandNames(self):
6683 self._ExpandAndLockInstance()
6684 self.needed_locks[locking.LEVEL_NODE] = []
6685 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
6687 def DeclareLocks(self, level):
6688 if level == locking.LEVEL_NODE:
6689 self._LockInstancesNodes()
6691 def CheckPrereq(self):
6692 """Check prerequisites.
6694 This checks that the instance is in the cluster.
6697 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6698 assert self.instance is not None, \
6699 "Cannot retrieve locked instance %s" % self.op.instance_name
6701 def Exec(self, feedback_fn):
6702 """Deactivate the disks
6705 instance = self.instance
6707 _ShutdownInstanceDisks(self, instance)
6709 _SafeShutdownInstanceDisks(self, instance)
6712 def _SafeShutdownInstanceDisks(lu, instance, disks=None):
6713 """Shutdown block devices of an instance.
6715 This function checks if an instance is running, before calling
6716 _ShutdownInstanceDisks.
6719 _CheckInstanceState(lu, instance, INSTANCE_DOWN, msg="cannot shutdown disks")
6720 _ShutdownInstanceDisks(lu, instance, disks=disks)
6723 def _ExpandCheckDisks(instance, disks):
6724 """Return the instance disks selected by the disks list
6726 @type disks: list of L{objects.Disk} or None
6727 @param disks: selected disks
6728 @rtype: list of L{objects.Disk}
6729 @return: selected instance disks to act on
6733 return instance.disks
6735 if not set(disks).issubset(instance.disks):
6736 raise errors.ProgrammerError("Can only act on disks belonging to the"
6741 def _ShutdownInstanceDisks(lu, instance, disks=None, ignore_primary=False):
6742 """Shutdown block devices of an instance.
6744 This does the shutdown on all nodes of the instance.
6746 If the ignore_primary is false, errors on the primary node are
6751 disks = _ExpandCheckDisks(instance, disks)
6754 for node, top_disk in disk.ComputeNodeTree(instance.primary_node):
6755 lu.cfg.SetDiskID(top_disk, node)
6756 result = lu.rpc.call_blockdev_shutdown(node, (top_disk, instance))
6757 msg = result.fail_msg
6759 lu.LogWarning("Could not shutdown block device %s on node %s: %s",
6760 disk.iv_name, node, msg)
6761 if ((node == instance.primary_node and not ignore_primary) or
6762 (node != instance.primary_node and not result.offline)):
6767 def _CheckNodeFreeMemory(lu, node, reason, requested, hypervisor_name):
6768 """Checks if a node has enough free memory.
6770 This function checks if a given node has the needed amount of free
6771 memory. In case the node has less memory or we cannot get the
6772 information from the node, this function raises an OpPrereqError
6775 @type lu: C{LogicalUnit}
6776 @param lu: a logical unit from which we get configuration data
6778 @param node: the node to check
6779 @type reason: C{str}
6780 @param reason: string to use in the error message
6781 @type requested: C{int}
6782 @param requested: the amount of memory in MiB to check for
6783 @type hypervisor_name: C{str}
6784 @param hypervisor_name: the hypervisor to ask for memory stats
6786 @return: node current free memory
6787 @raise errors.OpPrereqError: if the node doesn't have enough memory, or
6788 we cannot check the node
6791 nodeinfo = lu.rpc.call_node_info([node], None, [hypervisor_name])
6792 nodeinfo[node].Raise("Can't get data from node %s" % node,
6793 prereq=True, ecode=errors.ECODE_ENVIRON)
6794 (_, _, (hv_info, )) = nodeinfo[node].payload
6796 free_mem = hv_info.get("memory_free", None)
6797 if not isinstance(free_mem, int):
6798 raise errors.OpPrereqError("Can't compute free memory on node %s, result"
6799 " was '%s'" % (node, free_mem),
6800 errors.ECODE_ENVIRON)
6801 if requested > free_mem:
6802 raise errors.OpPrereqError("Not enough memory on node %s for %s:"
6803 " needed %s MiB, available %s MiB" %
6804 (node, reason, requested, free_mem),
6809 def _CheckNodesFreeDiskPerVG(lu, nodenames, req_sizes):
6810 """Checks if nodes have enough free disk space in all the VGs.
6812 This function checks if all given nodes have the needed amount of
6813 free disk. In case any node has less disk or we cannot get the
6814 information from the node, this function raises an OpPrereqError
6817 @type lu: C{LogicalUnit}
6818 @param lu: a logical unit from which we get configuration data
6819 @type nodenames: C{list}
6820 @param nodenames: the list of node names to check
6821 @type req_sizes: C{dict}
6822 @param req_sizes: the hash of vg and corresponding amount of disk in
6824 @raise errors.OpPrereqError: if the node doesn't have enough disk,
6825 or we cannot check the node
6828 for vg, req_size in req_sizes.items():
6829 _CheckNodesFreeDiskOnVG(lu, nodenames, vg, req_size)
6832 def _CheckNodesFreeDiskOnVG(lu, nodenames, vg, requested):
6833 """Checks if nodes have enough free disk space in the specified VG.
6835 This function checks if all given nodes have the needed amount of
6836 free disk. In case any node has less disk or we cannot get the
6837 information from the node, this function raises an OpPrereqError
6840 @type lu: C{LogicalUnit}
6841 @param lu: a logical unit from which we get configuration data
6842 @type nodenames: C{list}
6843 @param nodenames: the list of node names to check
6845 @param vg: the volume group to check
6846 @type requested: C{int}
6847 @param requested: the amount of disk in MiB to check for
6848 @raise errors.OpPrereqError: if the node doesn't have enough disk,
6849 or we cannot check the node
6852 nodeinfo = lu.rpc.call_node_info(nodenames, [vg], None)
6853 for node in nodenames:
6854 info = nodeinfo[node]
6855 info.Raise("Cannot get current information from node %s" % node,
6856 prereq=True, ecode=errors.ECODE_ENVIRON)
6857 (_, (vg_info, ), _) = info.payload
6858 vg_free = vg_info.get("vg_free", None)
6859 if not isinstance(vg_free, int):
6860 raise errors.OpPrereqError("Can't compute free disk space on node"
6861 " %s for vg %s, result was '%s'" %
6862 (node, vg, vg_free), errors.ECODE_ENVIRON)
6863 if requested > vg_free:
6864 raise errors.OpPrereqError("Not enough disk space on target node %s"
6865 " vg %s: required %d MiB, available %d MiB" %
6866 (node, vg, requested, vg_free),
6870 def _CheckNodesPhysicalCPUs(lu, nodenames, requested, hypervisor_name):
6871 """Checks if nodes have enough physical CPUs
6873 This function checks if all given nodes have the needed number of
6874 physical CPUs. In case any node has less CPUs or we cannot get the
6875 information from the node, this function raises an OpPrereqError
6878 @type lu: C{LogicalUnit}
6879 @param lu: a logical unit from which we get configuration data
6880 @type nodenames: C{list}
6881 @param nodenames: the list of node names to check
6882 @type requested: C{int}
6883 @param requested: the minimum acceptable number of physical CPUs
6884 @raise errors.OpPrereqError: if the node doesn't have enough CPUs,
6885 or we cannot check the node
6888 nodeinfo = lu.rpc.call_node_info(nodenames, None, [hypervisor_name])
6889 for node in nodenames:
6890 info = nodeinfo[node]
6891 info.Raise("Cannot get current information from node %s" % node,
6892 prereq=True, ecode=errors.ECODE_ENVIRON)
6893 (_, _, (hv_info, )) = info.payload
6894 num_cpus = hv_info.get("cpu_total", None)
6895 if not isinstance(num_cpus, int):
6896 raise errors.OpPrereqError("Can't compute the number of physical CPUs"
6897 " on node %s, result was '%s'" %
6898 (node, num_cpus), errors.ECODE_ENVIRON)
6899 if requested > num_cpus:
6900 raise errors.OpPrereqError("Node %s has %s physical CPUs, but %s are "
6901 "required" % (node, num_cpus, requested),
6905 class LUInstanceStartup(LogicalUnit):
6906 """Starts an instance.
6909 HPATH = "instance-start"
6910 HTYPE = constants.HTYPE_INSTANCE
6913 def CheckArguments(self):
6915 if self.op.beparams:
6916 # fill the beparams dict
6917 objects.UpgradeBeParams(self.op.beparams)
6918 utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
6920 def ExpandNames(self):
6921 self._ExpandAndLockInstance()
6922 self.recalculate_locks[locking.LEVEL_NODE_RES] = constants.LOCKS_REPLACE
6924 def DeclareLocks(self, level):
6925 if level == locking.LEVEL_NODE_RES:
6926 self._LockInstancesNodes(primary_only=True, level=locking.LEVEL_NODE_RES)
6928 def BuildHooksEnv(self):
6931 This runs on master, primary and secondary nodes of the instance.
6935 "FORCE": self.op.force,
6938 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
6942 def BuildHooksNodes(self):
6943 """Build hooks nodes.
6946 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
6949 def CheckPrereq(self):
6950 """Check prerequisites.
6952 This checks that the instance is in the cluster.
6955 self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6956 assert self.instance is not None, \
6957 "Cannot retrieve locked instance %s" % self.op.instance_name
6960 if self.op.hvparams:
6961 # check hypervisor parameter syntax (locally)
6962 cluster = self.cfg.GetClusterInfo()
6963 utils.ForceDictType(self.op.hvparams, constants.HVS_PARAMETER_TYPES)
6964 filled_hvp = cluster.FillHV(instance)
6965 filled_hvp.update(self.op.hvparams)
6966 hv_type = hypervisor.GetHypervisor(instance.hypervisor)
6967 hv_type.CheckParameterSyntax(filled_hvp)
6968 _CheckHVParams(self, instance.all_nodes, instance.hypervisor, filled_hvp)
6970 _CheckInstanceState(self, instance, INSTANCE_ONLINE)
6972 self.primary_offline = self.cfg.GetNodeInfo(instance.primary_node).offline
6974 if self.primary_offline and self.op.ignore_offline_nodes:
6975 self.LogWarning("Ignoring offline primary node")
6977 if self.op.hvparams or self.op.beparams:
6978 self.LogWarning("Overridden parameters are ignored")
6980 _CheckNodeOnline(self, instance.primary_node)
6982 bep = self.cfg.GetClusterInfo().FillBE(instance)
6983 bep.update(self.op.beparams)
6985 # check bridges existence
6986 _CheckInstanceBridgesExist(self, instance)
6988 remote_info = self.rpc.call_instance_info(instance.primary_node,
6990 instance.hypervisor)
6991 remote_info.Raise("Error checking node %s" % instance.primary_node,
6992 prereq=True, ecode=errors.ECODE_ENVIRON)
6993 if not remote_info.payload: # not running already
6994 _CheckNodeFreeMemory(self, instance.primary_node,
6995 "starting instance %s" % instance.name,
6996 bep[constants.BE_MINMEM], instance.hypervisor)
6998 def Exec(self, feedback_fn):
6999 """Start the instance.
7002 instance = self.instance
7003 force = self.op.force
7005 if not self.op.no_remember:
7006 self.cfg.MarkInstanceUp(instance.name)
7008 if self.primary_offline:
7009 assert self.op.ignore_offline_nodes
7010 self.LogInfo("Primary node offline, marked instance as started")
7012 node_current = instance.primary_node
7014 _StartInstanceDisks(self, instance, force)
7017 self.rpc.call_instance_start(node_current,
7018 (instance, self.op.hvparams,
7020 self.op.startup_paused)
7021 msg = result.fail_msg
7023 _ShutdownInstanceDisks(self, instance)
7024 raise errors.OpExecError("Could not start instance: %s" % msg)
7027 class LUInstanceReboot(LogicalUnit):
7028 """Reboot an instance.
7031 HPATH = "instance-reboot"
7032 HTYPE = constants.HTYPE_INSTANCE
7035 def ExpandNames(self):
7036 self._ExpandAndLockInstance()
7038 def BuildHooksEnv(self):
7041 This runs on master, primary and secondary nodes of the instance.
7045 "IGNORE_SECONDARIES": self.op.ignore_secondaries,
7046 "REBOOT_TYPE": self.op.reboot_type,
7047 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
7050 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
7054 def BuildHooksNodes(self):
7055 """Build hooks nodes.
7058 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
7061 def CheckPrereq(self):
7062 """Check prerequisites.
7064 This checks that the instance is in the cluster.
7067 self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name)
7068 assert self.instance is not None, \
7069 "Cannot retrieve locked instance %s" % self.op.instance_name
7070 _CheckInstanceState(self, instance, INSTANCE_ONLINE)
7071 _CheckNodeOnline(self, instance.primary_node)
7073 # check bridges existence
7074 _CheckInstanceBridgesExist(self, instance)
7076 def Exec(self, feedback_fn):
7077 """Reboot the instance.
7080 instance = self.instance
7081 ignore_secondaries = self.op.ignore_secondaries
7082 reboot_type = self.op.reboot_type
7084 remote_info = self.rpc.call_instance_info(instance.primary_node,
7086 instance.hypervisor)
7087 remote_info.Raise("Error checking node %s" % instance.primary_node)
7088 instance_running = bool(remote_info.payload)
7090 node_current = instance.primary_node
7092 if instance_running and reboot_type in [constants.INSTANCE_REBOOT_SOFT,
7093 constants.INSTANCE_REBOOT_HARD]:
7094 for disk in instance.disks:
7095 self.cfg.SetDiskID(disk, node_current)
7096 result = self.rpc.call_instance_reboot(node_current, instance,
7098 self.op.shutdown_timeout)
7099 result.Raise("Could not reboot instance")
7101 if instance_running:
7102 result = self.rpc.call_instance_shutdown(node_current, instance,
7103 self.op.shutdown_timeout)
7104 result.Raise("Could not shutdown instance for full reboot")
7105 _ShutdownInstanceDisks(self, instance)
7107 self.LogInfo("Instance %s was already stopped, starting now",
7109 _StartInstanceDisks(self, instance, ignore_secondaries)
7110 result = self.rpc.call_instance_start(node_current,
7111 (instance, None, None), False)
7112 msg = result.fail_msg
7114 _ShutdownInstanceDisks(self, instance)
7115 raise errors.OpExecError("Could not start instance for"
7116 " full reboot: %s" % msg)
7118 self.cfg.MarkInstanceUp(instance.name)
7121 class LUInstanceShutdown(LogicalUnit):
7122 """Shutdown an instance.
7125 HPATH = "instance-stop"
7126 HTYPE = constants.HTYPE_INSTANCE
7129 def ExpandNames(self):
7130 self._ExpandAndLockInstance()
7132 def BuildHooksEnv(self):
7135 This runs on master, primary and secondary nodes of the instance.
7138 env = _BuildInstanceHookEnvByObject(self, self.instance)
7139 env["TIMEOUT"] = self.op.timeout
7142 def BuildHooksNodes(self):
7143 """Build hooks nodes.
7146 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
7149 def CheckPrereq(self):
7150 """Check prerequisites.
7152 This checks that the instance is in the cluster.
7155 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
7156 assert self.instance is not None, \
7157 "Cannot retrieve locked instance %s" % self.op.instance_name
7159 if not self.op.force:
7160 _CheckInstanceState(self, self.instance, INSTANCE_ONLINE)
7162 self.LogWarning("Ignoring offline instance check")
7164 self.primary_offline = \
7165 self.cfg.GetNodeInfo(self.instance.primary_node).offline
7167 if self.primary_offline and self.op.ignore_offline_nodes:
7168 self.LogWarning("Ignoring offline primary node")
7170 _CheckNodeOnline(self, self.instance.primary_node)
7172 def Exec(self, feedback_fn):
7173 """Shutdown the instance.
7176 instance = self.instance
7177 node_current = instance.primary_node
7178 timeout = self.op.timeout
7180 if not self.op.no_remember:
7181 self.cfg.MarkInstanceDown(instance.name)
7183 if self.primary_offline:
7184 assert self.op.ignore_offline_nodes
7185 self.LogInfo("Primary node offline, marked instance as stopped")
7187 result = self.rpc.call_instance_shutdown(node_current, instance, timeout)
7188 msg = result.fail_msg
7190 self.LogWarning("Could not shutdown instance: %s", msg)
7192 _ShutdownInstanceDisks(self, instance)
7195 class LUInstanceReinstall(LogicalUnit):
7196 """Reinstall an instance.
7199 HPATH = "instance-reinstall"
7200 HTYPE = constants.HTYPE_INSTANCE
7203 def ExpandNames(self):
7204 self._ExpandAndLockInstance()
7206 def BuildHooksEnv(self):
7209 This runs on master, primary and secondary nodes of the instance.
7212 return _BuildInstanceHookEnvByObject(self, self.instance)
7214 def BuildHooksNodes(self):
7215 """Build hooks nodes.
7218 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
7221 def CheckPrereq(self):
7222 """Check prerequisites.
7224 This checks that the instance is in the cluster and is not running.
7227 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
7228 assert instance is not None, \
7229 "Cannot retrieve locked instance %s" % self.op.instance_name
7230 _CheckNodeOnline(self, instance.primary_node, "Instance primary node"
7231 " offline, cannot reinstall")
7233 if instance.disk_template == constants.DT_DISKLESS:
7234 raise errors.OpPrereqError("Instance '%s' has no disks" %
7235 self.op.instance_name,
7237 _CheckInstanceState(self, instance, INSTANCE_DOWN, msg="cannot reinstall")
7239 if self.op.os_type is not None:
7241 pnode = _ExpandNodeName(self.cfg, instance.primary_node)
7242 _CheckNodeHasOS(self, pnode, self.op.os_type, self.op.force_variant)
7243 instance_os = self.op.os_type
7245 instance_os = instance.os
7247 nodelist = list(instance.all_nodes)
7249 if self.op.osparams:
7250 i_osdict = _GetUpdatedParams(instance.osparams, self.op.osparams)
7251 _CheckOSParams(self, True, nodelist, instance_os, i_osdict)
7252 self.os_inst = i_osdict # the new dict (without defaults)
7256 self.instance = instance
7258 def Exec(self, feedback_fn):
7259 """Reinstall the instance.
7262 inst = self.instance
7264 if self.op.os_type is not None:
7265 feedback_fn("Changing OS to '%s'..." % self.op.os_type)
7266 inst.os = self.op.os_type
7267 # Write to configuration
7268 self.cfg.Update(inst, feedback_fn)
7270 _StartInstanceDisks(self, inst, None)
7272 feedback_fn("Running the instance OS create scripts...")
7273 # FIXME: pass debug option from opcode to backend
7274 result = self.rpc.call_instance_os_add(inst.primary_node,
7275 (inst, self.os_inst), True,
7276 self.op.debug_level)
7277 result.Raise("Could not install OS for instance %s on node %s" %
7278 (inst.name, inst.primary_node))
7280 _ShutdownInstanceDisks(self, inst)
7283 class LUInstanceRecreateDisks(LogicalUnit):
7284 """Recreate an instance's missing disks.
7287 HPATH = "instance-recreate-disks"
7288 HTYPE = constants.HTYPE_INSTANCE
7291 _MODIFYABLE = compat.UniqueFrozenset([
7292 constants.IDISK_SIZE,
7293 constants.IDISK_MODE,
7296 # New or changed disk parameters may have different semantics
7297 assert constants.IDISK_PARAMS == (_MODIFYABLE | frozenset([
7298 constants.IDISK_ADOPT,
7300 # TODO: Implement support changing VG while recreating
7302 constants.IDISK_METAVG,
7305 def _RunAllocator(self):
7306 """Run the allocator based on input opcode.
7309 be_full = self.cfg.GetClusterInfo().FillBE(self.instance)
7312 # The allocator should actually run in "relocate" mode, but current
7313 # allocators don't support relocating all the nodes of an instance at
7314 # the same time. As a workaround we use "allocate" mode, but this is
7315 # suboptimal for two reasons:
7316 # - The instance name passed to the allocator is present in the list of
7317 # existing instances, so there could be a conflict within the
7318 # internal structures of the allocator. This doesn't happen with the
7319 # current allocators, but it's a liability.
7320 # - The allocator counts the resources used by the instance twice: once
7321 # because the instance exists already, and once because it tries to
7322 # allocate a new instance.
7323 # The allocator could choose some of the nodes on which the instance is
7324 # running, but that's not a problem. If the instance nodes are broken,
7325 # they should be already be marked as drained or offline, and hence
7326 # skipped by the allocator. If instance disks have been lost for other
7327 # reasons, then recreating the disks on the same nodes should be fine.
7328 disk_template = self.instance.disk_template
7329 spindle_use = be_full[constants.BE_SPINDLE_USE]
7330 req = iallocator.IAReqInstanceAlloc(name=self.op.instance_name,
7331 disk_template=disk_template,
7332 tags=list(self.instance.GetTags()),
7333 os=self.instance.os,
7335 vcpus=be_full[constants.BE_VCPUS],
7336 memory=be_full[constants.BE_MAXMEM],
7337 spindle_use=spindle_use,
7338 disks=[{constants.IDISK_SIZE: d.size,
7339 constants.IDISK_MODE: d.mode}
7340 for d in self.instance.disks],
7341 hypervisor=self.instance.hypervisor)
7342 ial = iallocator.IAllocator(self.cfg, self.rpc, req)
7344 ial.Run(self.op.iallocator)
7346 assert req.RequiredNodes() == len(self.instance.all_nodes)
7349 raise errors.OpPrereqError("Can't compute nodes using iallocator '%s':"
7350 " %s" % (self.op.iallocator, ial.info),
7353 self.op.nodes = ial.result
7354 self.LogInfo("Selected nodes for instance %s via iallocator %s: %s",
7355 self.op.instance_name, self.op.iallocator,
7356 utils.CommaJoin(ial.result))
7358 def CheckArguments(self):
7359 if self.op.disks and ht.TNonNegativeInt(self.op.disks[0]):
7360 # Normalize and convert deprecated list of disk indices
7361 self.op.disks = [(idx, {}) for idx in sorted(frozenset(self.op.disks))]
7363 duplicates = utils.FindDuplicates(map(compat.fst, self.op.disks))
7365 raise errors.OpPrereqError("Some disks have been specified more than"
7366 " once: %s" % utils.CommaJoin(duplicates),
7369 # We don't want _CheckIAllocatorOrNode selecting the default iallocator
7370 # when neither iallocator nor nodes are specified
7371 if self.op.iallocator or self.op.nodes:
7372 _CheckIAllocatorOrNode(self, "iallocator", "nodes")
7374 for (idx, params) in self.op.disks:
7375 utils.ForceDictType(params, constants.IDISK_PARAMS_TYPES)
7376 unsupported = frozenset(params.keys()) - self._MODIFYABLE
7378 raise errors.OpPrereqError("Parameters for disk %s try to change"
7379 " unmodifyable parameter(s): %s" %
7380 (idx, utils.CommaJoin(unsupported)),
7383 def ExpandNames(self):
7384 self._ExpandAndLockInstance()
7385 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
7388 self.op.nodes = [_ExpandNodeName(self.cfg, n) for n in self.op.nodes]
7389 self.needed_locks[locking.LEVEL_NODE] = list(self.op.nodes)
7391 self.needed_locks[locking.LEVEL_NODE] = []
7392 if self.op.iallocator:
7393 # iallocator will select a new node in the same group
7394 self.needed_locks[locking.LEVEL_NODEGROUP] = []
7395 self.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET
7397 self.needed_locks[locking.LEVEL_NODE_RES] = []
7399 def DeclareLocks(self, level):
7400 if level == locking.LEVEL_NODEGROUP:
7401 assert self.op.iallocator is not None
7402 assert not self.op.nodes
7403 assert not self.needed_locks[locking.LEVEL_NODEGROUP]
7404 self.share_locks[locking.LEVEL_NODEGROUP] = 1
7405 # Lock the primary group used by the instance optimistically; this
7406 # requires going via the node before it's locked, requiring
7407 # verification later on
7408 self.needed_locks[locking.LEVEL_NODEGROUP] = \
7409 self.cfg.GetInstanceNodeGroups(self.op.instance_name, primary_only=True)
7411 elif level == locking.LEVEL_NODE:
7412 # If an allocator is used, then we lock all the nodes in the current
7413 # instance group, as we don't know yet which ones will be selected;
7414 # if we replace the nodes without using an allocator, locks are
7415 # already declared in ExpandNames; otherwise, we need to lock all the
7416 # instance nodes for disk re-creation
7417 if self.op.iallocator:
7418 assert not self.op.nodes
7419 assert not self.needed_locks[locking.LEVEL_NODE]
7420 assert len(self.owned_locks(locking.LEVEL_NODEGROUP)) == 1
7422 # Lock member nodes of the group of the primary node
7423 for group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP):
7424 self.needed_locks[locking.LEVEL_NODE].extend(
7425 self.cfg.GetNodeGroup(group_uuid).members)
7427 assert locking.NAL in self.owned_locks(locking.LEVEL_NODE_ALLOC)
7428 elif not self.op.nodes:
7429 self._LockInstancesNodes(primary_only=False)
7430 elif level == locking.LEVEL_NODE_RES:
7432 self.needed_locks[locking.LEVEL_NODE_RES] = \
7433 _CopyLockList(self.needed_locks[locking.LEVEL_NODE])
7435 def BuildHooksEnv(self):
7438 This runs on master, primary and secondary nodes of the instance.
7441 return _BuildInstanceHookEnvByObject(self, self.instance)
7443 def BuildHooksNodes(self):
7444 """Build hooks nodes.
7447 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
7450 def CheckPrereq(self):
7451 """Check prerequisites.
7453 This checks that the instance is in the cluster and is not running.
7456 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
7457 assert instance is not None, \
7458 "Cannot retrieve locked instance %s" % self.op.instance_name
7460 if len(self.op.nodes) != len(instance.all_nodes):
7461 raise errors.OpPrereqError("Instance %s currently has %d nodes, but"
7462 " %d replacement nodes were specified" %
7463 (instance.name, len(instance.all_nodes),
7464 len(self.op.nodes)),
7466 assert instance.disk_template != constants.DT_DRBD8 or \
7467 len(self.op.nodes) == 2
7468 assert instance.disk_template != constants.DT_PLAIN or \
7469 len(self.op.nodes) == 1
7470 primary_node = self.op.nodes[0]
7472 primary_node = instance.primary_node
7473 if not self.op.iallocator:
7474 _CheckNodeOnline(self, primary_node)
7476 if instance.disk_template == constants.DT_DISKLESS:
7477 raise errors.OpPrereqError("Instance '%s' has no disks" %
7478 self.op.instance_name, errors.ECODE_INVAL)
7480 # Verify if node group locks are still correct
7481 owned_groups = self.owned_locks(locking.LEVEL_NODEGROUP)
7483 # Node group locks are acquired only for the primary node (and only
7484 # when the allocator is used)
7485 _CheckInstanceNodeGroups(self.cfg, self.op.instance_name, owned_groups,
7488 # if we replace nodes *and* the old primary is offline, we don't
7489 # check the instance state
7490 old_pnode = self.cfg.GetNodeInfo(instance.primary_node)
7491 if not ((self.op.iallocator or self.op.nodes) and old_pnode.offline):
7492 _CheckInstanceState(self, instance, INSTANCE_NOT_RUNNING,
7493 msg="cannot recreate disks")
7496 self.disks = dict(self.op.disks)
7498 self.disks = dict((idx, {}) for idx in range(len(instance.disks)))
7500 maxidx = max(self.disks.keys())
7501 if maxidx >= len(instance.disks):
7502 raise errors.OpPrereqError("Invalid disk index '%s'" % maxidx,
7505 if ((self.op.nodes or self.op.iallocator) and
7506 sorted(self.disks.keys()) != range(len(instance.disks))):
7507 raise errors.OpPrereqError("Can't recreate disks partially and"
7508 " change the nodes at the same time",
7511 self.instance = instance
7513 if self.op.iallocator:
7514 self._RunAllocator()
7515 # Release unneeded node and node resource locks
7516 _ReleaseLocks(self, locking.LEVEL_NODE, keep=self.op.nodes)
7517 _ReleaseLocks(self, locking.LEVEL_NODE_RES, keep=self.op.nodes)
7518 _ReleaseLocks(self, locking.LEVEL_NODE_ALLOC)
7520 assert not self.glm.is_owned(locking.LEVEL_NODE_ALLOC)
7522 def Exec(self, feedback_fn):
7523 """Recreate the disks.
7526 instance = self.instance
7528 assert (self.owned_locks(locking.LEVEL_NODE) ==
7529 self.owned_locks(locking.LEVEL_NODE_RES))
7532 mods = [] # keeps track of needed changes
7534 for idx, disk in enumerate(instance.disks):
7536 changes = self.disks[idx]
7538 # Disk should not be recreated
7542 # update secondaries for disks, if needed
7543 if self.op.nodes and disk.dev_type == constants.LD_DRBD8:
7544 # need to update the nodes and minors
7545 assert len(self.op.nodes) == 2
7546 assert len(disk.logical_id) == 6 # otherwise disk internals
7548 (_, _, old_port, _, _, old_secret) = disk.logical_id
7549 new_minors = self.cfg.AllocateDRBDMinor(self.op.nodes, instance.name)
7550 new_id = (self.op.nodes[0], self.op.nodes[1], old_port,
7551 new_minors[0], new_minors[1], old_secret)
7552 assert len(disk.logical_id) == len(new_id)
7556 mods.append((idx, new_id, changes))
7558 # now that we have passed all asserts above, we can apply the mods
7559 # in a single run (to avoid partial changes)
7560 for idx, new_id, changes in mods:
7561 disk = instance.disks[idx]
7562 if new_id is not None:
7563 assert disk.dev_type == constants.LD_DRBD8
7564 disk.logical_id = new_id
7566 disk.Update(size=changes.get(constants.IDISK_SIZE, None),
7567 mode=changes.get(constants.IDISK_MODE, None))
7569 # change primary node, if needed
7571 instance.primary_node = self.op.nodes[0]
7572 self.LogWarning("Changing the instance's nodes, you will have to"
7573 " remove any disks left on the older nodes manually")
7576 self.cfg.Update(instance, feedback_fn)
7578 # All touched nodes must be locked
7579 mylocks = self.owned_locks(locking.LEVEL_NODE)
7580 assert mylocks.issuperset(frozenset(instance.all_nodes))
7581 _CreateDisks(self, instance, to_skip=to_skip)
7584 class LUInstanceRename(LogicalUnit):
7585 """Rename an instance.
7588 HPATH = "instance-rename"
7589 HTYPE = constants.HTYPE_INSTANCE
7591 def CheckArguments(self):
7595 if self.op.ip_check and not self.op.name_check:
7596 # TODO: make the ip check more flexible and not depend on the name check
7597 raise errors.OpPrereqError("IP address check requires a name check",
7600 def BuildHooksEnv(self):
7603 This runs on master, primary and secondary nodes of the instance.
7606 env = _BuildInstanceHookEnvByObject(self, self.instance)
7607 env["INSTANCE_NEW_NAME"] = self.op.new_name
7610 def BuildHooksNodes(self):
7611 """Build hooks nodes.
7614 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
7617 def CheckPrereq(self):
7618 """Check prerequisites.
7620 This checks that the instance is in the cluster and is not running.
7623 self.op.instance_name = _ExpandInstanceName(self.cfg,
7624 self.op.instance_name)
7625 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
7626 assert instance is not None
7627 _CheckNodeOnline(self, instance.primary_node)
7628 _CheckInstanceState(self, instance, INSTANCE_NOT_RUNNING,
7629 msg="cannot rename")
7630 self.instance = instance
7632 new_name = self.op.new_name
7633 if self.op.name_check:
7634 hostname = _CheckHostnameSane(self, new_name)
7635 new_name = self.op.new_name = hostname.name
7636 if (self.op.ip_check and
7637 netutils.TcpPing(hostname.ip, constants.DEFAULT_NODED_PORT)):
7638 raise errors.OpPrereqError("IP %s of instance %s already in use" %
7639 (hostname.ip, new_name),
7640 errors.ECODE_NOTUNIQUE)
7642 instance_list = self.cfg.GetInstanceList()
7643 if new_name in instance_list and new_name != instance.name:
7644 raise errors.OpPrereqError("Instance '%s' is already in the cluster" %
7645 new_name, errors.ECODE_EXISTS)
7647 def Exec(self, feedback_fn):
7648 """Rename the instance.
7651 inst = self.instance
7652 old_name = inst.name
7654 rename_file_storage = False
7655 if (inst.disk_template in constants.DTS_FILEBASED and
7656 self.op.new_name != inst.name):
7657 old_file_storage_dir = os.path.dirname(inst.disks[0].logical_id[1])
7658 rename_file_storage = True
7660 self.cfg.RenameInstance(inst.name, self.op.new_name)
7661 # Change the instance lock. This is definitely safe while we hold the BGL.
7662 # Otherwise the new lock would have to be added in acquired mode.
7664 assert locking.BGL in self.owned_locks(locking.LEVEL_CLUSTER)
7665 self.glm.remove(locking.LEVEL_INSTANCE, old_name)
7666 self.glm.add(locking.LEVEL_INSTANCE, self.op.new_name)
7668 # re-read the instance from the configuration after rename
7669 inst = self.cfg.GetInstanceInfo(self.op.new_name)
7671 if rename_file_storage:
7672 new_file_storage_dir = os.path.dirname(inst.disks[0].logical_id[1])
7673 result = self.rpc.call_file_storage_dir_rename(inst.primary_node,
7674 old_file_storage_dir,
7675 new_file_storage_dir)
7676 result.Raise("Could not rename on node %s directory '%s' to '%s'"
7677 " (but the instance has been renamed in Ganeti)" %
7678 (inst.primary_node, old_file_storage_dir,
7679 new_file_storage_dir))
7681 _StartInstanceDisks(self, inst, None)
7682 # update info on disks
7683 info = _GetInstanceInfoText(inst)
7684 for (idx, disk) in enumerate(inst.disks):
7685 for node in inst.all_nodes:
7686 self.cfg.SetDiskID(disk, node)
7687 result = self.rpc.call_blockdev_setinfo(node, disk, info)
7689 self.LogWarning("Error setting info on node %s for disk %s: %s",
7690 node, idx, result.fail_msg)
7692 result = self.rpc.call_instance_run_rename(inst.primary_node, inst,
7693 old_name, self.op.debug_level)
7694 msg = result.fail_msg
7696 msg = ("Could not run OS rename script for instance %s on node %s"
7697 " (but the instance has been renamed in Ganeti): %s" %
7698 (inst.name, inst.primary_node, msg))
7699 self.LogWarning(msg)
7701 _ShutdownInstanceDisks(self, inst)
7706 class LUInstanceRemove(LogicalUnit):
7707 """Remove an instance.
7710 HPATH = "instance-remove"
7711 HTYPE = constants.HTYPE_INSTANCE
7714 def ExpandNames(self):
7715 self._ExpandAndLockInstance()
7716 self.needed_locks[locking.LEVEL_NODE] = []
7717 self.needed_locks[locking.LEVEL_NODE_RES] = []
7718 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
7720 def DeclareLocks(self, level):
7721 if level == locking.LEVEL_NODE:
7722 self._LockInstancesNodes()
7723 elif level == locking.LEVEL_NODE_RES:
7725 self.needed_locks[locking.LEVEL_NODE_RES] = \
7726 _CopyLockList(self.needed_locks[locking.LEVEL_NODE])
7728 def BuildHooksEnv(self):
7731 This runs on master, primary and secondary nodes of the instance.
7734 env = _BuildInstanceHookEnvByObject(self, self.instance)
7735 env["SHUTDOWN_TIMEOUT"] = self.op.shutdown_timeout
7738 def BuildHooksNodes(self):
7739 """Build hooks nodes.
7742 nl = [self.cfg.GetMasterNode()]
7743 nl_post = list(self.instance.all_nodes) + nl
7744 return (nl, nl_post)
7746 def CheckPrereq(self):
7747 """Check prerequisites.
7749 This checks that the instance is in the cluster.
7752 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
7753 assert self.instance is not None, \
7754 "Cannot retrieve locked instance %s" % self.op.instance_name
7756 def Exec(self, feedback_fn):
7757 """Remove the instance.
7760 instance = self.instance
7761 logging.info("Shutting down instance %s on node %s",
7762 instance.name, instance.primary_node)
7764 result = self.rpc.call_instance_shutdown(instance.primary_node, instance,
7765 self.op.shutdown_timeout)
7766 msg = result.fail_msg
7768 if self.op.ignore_failures:
7769 feedback_fn("Warning: can't shutdown instance: %s" % msg)
7771 raise errors.OpExecError("Could not shutdown instance %s on"
7773 (instance.name, instance.primary_node, msg))
7775 assert (self.owned_locks(locking.LEVEL_NODE) ==
7776 self.owned_locks(locking.LEVEL_NODE_RES))
7777 assert not (set(instance.all_nodes) -
7778 self.owned_locks(locking.LEVEL_NODE)), \
7779 "Not owning correct locks"
7781 _RemoveInstance(self, feedback_fn, instance, self.op.ignore_failures)
7784 def _RemoveInstance(lu, feedback_fn, instance, ignore_failures):
7785 """Utility function to remove an instance.
7788 logging.info("Removing block devices for instance %s", instance.name)
7790 if not _RemoveDisks(lu, instance, ignore_failures=ignore_failures):
7791 if not ignore_failures:
7792 raise errors.OpExecError("Can't remove instance's disks")
7793 feedback_fn("Warning: can't remove instance's disks")
7795 logging.info("Removing instance %s out of cluster config", instance.name)
7797 lu.cfg.RemoveInstance(instance.name)
7799 assert not lu.remove_locks.get(locking.LEVEL_INSTANCE), \
7800 "Instance lock removal conflict"
7802 # Remove lock for the instance
7803 lu.remove_locks[locking.LEVEL_INSTANCE] = instance.name
7806 class LUInstanceQuery(NoHooksLU):
7807 """Logical unit for querying instances.
7810 # pylint: disable=W0142
7813 def CheckArguments(self):
7814 self.iq = _InstanceQuery(qlang.MakeSimpleFilter("name", self.op.names),
7815 self.op.output_fields, self.op.use_locking)
7817 def ExpandNames(self):
7818 self.iq.ExpandNames(self)
7820 def DeclareLocks(self, level):
7821 self.iq.DeclareLocks(self, level)
7823 def Exec(self, feedback_fn):
7824 return self.iq.OldStyleQuery(self)
7827 def _ExpandNamesForMigration(lu):
7828 """Expands names for use with L{TLMigrateInstance}.
7830 @type lu: L{LogicalUnit}
7833 if lu.op.target_node is not None:
7834 lu.op.target_node = _ExpandNodeName(lu.cfg, lu.op.target_node)
7836 lu.needed_locks[locking.LEVEL_NODE] = []
7837 lu.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
7839 lu.needed_locks[locking.LEVEL_NODE_RES] = []
7840 lu.recalculate_locks[locking.LEVEL_NODE_RES] = constants.LOCKS_REPLACE
7842 # The node allocation lock is actually only needed for replicated instances
7843 # (e.g. DRBD8) and if an iallocator is used.
7844 lu.needed_locks[locking.LEVEL_NODE_ALLOC] = []
7847 def _DeclareLocksForMigration(lu, level):
7848 """Declares locks for L{TLMigrateInstance}.
7850 @type lu: L{LogicalUnit}
7851 @param level: Lock level
7854 if level == locking.LEVEL_NODE_ALLOC:
7855 assert lu.op.instance_name in lu.owned_locks(locking.LEVEL_INSTANCE)
7857 instance = lu.cfg.GetInstanceInfo(lu.op.instance_name)
7859 # Node locks are already declared here rather than at LEVEL_NODE as we need
7860 # the instance object anyway to declare the node allocation lock.
7861 if instance.disk_template in constants.DTS_EXT_MIRROR:
7862 if lu.op.target_node is None:
7863 lu.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
7864 lu.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET
7866 lu.needed_locks[locking.LEVEL_NODE] = [instance.primary_node,
7868 del lu.recalculate_locks[locking.LEVEL_NODE]
7870 lu._LockInstancesNodes() # pylint: disable=W0212
7872 elif level == locking.LEVEL_NODE:
7873 # Node locks are declared together with the node allocation lock
7874 assert (lu.needed_locks[locking.LEVEL_NODE] or
7875 lu.needed_locks[locking.LEVEL_NODE] is locking.ALL_SET)
7877 elif level == locking.LEVEL_NODE_RES:
7879 lu.needed_locks[locking.LEVEL_NODE_RES] = \
7880 _CopyLockList(lu.needed_locks[locking.LEVEL_NODE])
7883 class LUInstanceFailover(LogicalUnit):
7884 """Failover an instance.
7887 HPATH = "instance-failover"
7888 HTYPE = constants.HTYPE_INSTANCE
7891 def CheckArguments(self):
7892 """Check the arguments.
7895 self.iallocator = getattr(self.op, "iallocator", None)
7896 self.target_node = getattr(self.op, "target_node", None)
7898 def ExpandNames(self):
7899 self._ExpandAndLockInstance()
7900 _ExpandNamesForMigration(self)
7903 TLMigrateInstance(self, self.op.instance_name, False, True, False,
7904 self.op.ignore_consistency, True,
7905 self.op.shutdown_timeout, self.op.ignore_ipolicy)
7907 self.tasklets = [self._migrater]
7909 def DeclareLocks(self, level):
7910 _DeclareLocksForMigration(self, level)
7912 def BuildHooksEnv(self):
7915 This runs on master, primary and secondary nodes of the instance.
7918 instance = self._migrater.instance
7919 source_node = instance.primary_node
7920 target_node = self.op.target_node
7922 "IGNORE_CONSISTENCY": self.op.ignore_consistency,
7923 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
7924 "OLD_PRIMARY": source_node,
7925 "NEW_PRIMARY": target_node,
7928 if instance.disk_template in constants.DTS_INT_MIRROR:
7929 env["OLD_SECONDARY"] = instance.secondary_nodes[0]
7930 env["NEW_SECONDARY"] = source_node
7932 env["OLD_SECONDARY"] = env["NEW_SECONDARY"] = ""
7934 env.update(_BuildInstanceHookEnvByObject(self, instance))
7938 def BuildHooksNodes(self):
7939 """Build hooks nodes.
7942 instance = self._migrater.instance
7943 nl = [self.cfg.GetMasterNode()] + list(instance.secondary_nodes)
7944 return (nl, nl + [instance.primary_node])
7947 class LUInstanceMigrate(LogicalUnit):
7948 """Migrate an instance.
7950 This is migration without shutting down, compared to the failover,
7951 which is done with shutdown.
7954 HPATH = "instance-migrate"
7955 HTYPE = constants.HTYPE_INSTANCE
7958 def ExpandNames(self):
7959 self._ExpandAndLockInstance()
7960 _ExpandNamesForMigration(self)
7963 TLMigrateInstance(self, self.op.instance_name, self.op.cleanup,
7964 False, self.op.allow_failover, False,
7965 self.op.allow_runtime_changes,
7966 constants.DEFAULT_SHUTDOWN_TIMEOUT,
7967 self.op.ignore_ipolicy)
7969 self.tasklets = [self._migrater]
7971 def DeclareLocks(self, level):
7972 _DeclareLocksForMigration(self, level)
7974 def BuildHooksEnv(self):
7977 This runs on master, primary and secondary nodes of the instance.
7980 instance = self._migrater.instance
7981 source_node = instance.primary_node
7982 target_node = self.op.target_node
7983 env = _BuildInstanceHookEnvByObject(self, instance)
7985 "MIGRATE_LIVE": self._migrater.live,
7986 "MIGRATE_CLEANUP": self.op.cleanup,
7987 "OLD_PRIMARY": source_node,
7988 "NEW_PRIMARY": target_node,
7989 "ALLOW_RUNTIME_CHANGES": self.op.allow_runtime_changes,
7992 if instance.disk_template in constants.DTS_INT_MIRROR:
7993 env["OLD_SECONDARY"] = target_node
7994 env["NEW_SECONDARY"] = source_node
7996 env["OLD_SECONDARY"] = env["NEW_SECONDARY"] = None
8000 def BuildHooksNodes(self):
8001 """Build hooks nodes.
8004 instance = self._migrater.instance
8005 nl = [self.cfg.GetMasterNode()] + list(instance.secondary_nodes)
8006 return (nl, nl + [instance.primary_node])
8009 class LUInstanceMove(LogicalUnit):
8010 """Move an instance by data-copying.
8013 HPATH = "instance-move"
8014 HTYPE = constants.HTYPE_INSTANCE
8017 def ExpandNames(self):
8018 self._ExpandAndLockInstance()
8019 target_node = _ExpandNodeName(self.cfg, self.op.target_node)
8020 self.op.target_node = target_node
8021 self.needed_locks[locking.LEVEL_NODE] = [target_node]
8022 self.needed_locks[locking.LEVEL_NODE_RES] = []
8023 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
8025 def DeclareLocks(self, level):
8026 if level == locking.LEVEL_NODE:
8027 self._LockInstancesNodes(primary_only=True)
8028 elif level == locking.LEVEL_NODE_RES:
8030 self.needed_locks[locking.LEVEL_NODE_RES] = \
8031 _CopyLockList(self.needed_locks[locking.LEVEL_NODE])
8033 def BuildHooksEnv(self):
8036 This runs on master, primary and secondary nodes of the instance.
8040 "TARGET_NODE": self.op.target_node,
8041 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
8043 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
8046 def BuildHooksNodes(self):
8047 """Build hooks nodes.
8051 self.cfg.GetMasterNode(),
8052 self.instance.primary_node,
8053 self.op.target_node,
8057 def CheckPrereq(self):
8058 """Check prerequisites.
8060 This checks that the instance is in the cluster.
8063 self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name)
8064 assert self.instance is not None, \
8065 "Cannot retrieve locked instance %s" % self.op.instance_name
8067 node = self.cfg.GetNodeInfo(self.op.target_node)
8068 assert node is not None, \
8069 "Cannot retrieve locked node %s" % self.op.target_node
8071 self.target_node = target_node = node.name
8073 if target_node == instance.primary_node:
8074 raise errors.OpPrereqError("Instance %s is already on the node %s" %
8075 (instance.name, target_node),
8078 bep = self.cfg.GetClusterInfo().FillBE(instance)
8080 for idx, dsk in enumerate(instance.disks):
8081 if dsk.dev_type not in (constants.LD_LV, constants.LD_FILE):
8082 raise errors.OpPrereqError("Instance disk %d has a complex layout,"
8083 " cannot copy" % idx, errors.ECODE_STATE)
8085 _CheckNodeOnline(self, target_node)
8086 _CheckNodeNotDrained(self, target_node)
8087 _CheckNodeVmCapable(self, target_node)
8088 cluster = self.cfg.GetClusterInfo()
8089 group_info = self.cfg.GetNodeGroup(node.group)
8090 ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster, group_info)
8091 _CheckTargetNodeIPolicy(self, ipolicy, instance, node,
8092 ignore=self.op.ignore_ipolicy)
8094 if instance.admin_state == constants.ADMINST_UP:
8095 # check memory requirements on the secondary node
8096 _CheckNodeFreeMemory(self, target_node, "failing over instance %s" %
8097 instance.name, bep[constants.BE_MAXMEM],
8098 instance.hypervisor)
8100 self.LogInfo("Not checking memory on the secondary node as"
8101 " instance will not be started")
8103 # check bridge existance
8104 _CheckInstanceBridgesExist(self, instance, node=target_node)
8106 def Exec(self, feedback_fn):
8107 """Move an instance.
8109 The move is done by shutting it down on its present node, copying
8110 the data over (slow) and starting it on the new node.
8113 instance = self.instance
8115 source_node = instance.primary_node
8116 target_node = self.target_node
8118 self.LogInfo("Shutting down instance %s on source node %s",
8119 instance.name, source_node)
8121 assert (self.owned_locks(locking.LEVEL_NODE) ==
8122 self.owned_locks(locking.LEVEL_NODE_RES))
8124 result = self.rpc.call_instance_shutdown(source_node, instance,
8125 self.op.shutdown_timeout)
8126 msg = result.fail_msg
8128 if self.op.ignore_consistency:
8129 self.LogWarning("Could not shutdown instance %s on node %s."
8130 " Proceeding anyway. Please make sure node"
8131 " %s is down. Error details: %s",
8132 instance.name, source_node, source_node, msg)
8134 raise errors.OpExecError("Could not shutdown instance %s on"
8136 (instance.name, source_node, msg))
8138 # create the target disks
8140 _CreateDisks(self, instance, target_node=target_node)
8141 except errors.OpExecError:
8142 self.LogWarning("Device creation failed, reverting...")
8144 _RemoveDisks(self, instance, target_node=target_node)
8146 self.cfg.ReleaseDRBDMinors(instance.name)
8149 cluster_name = self.cfg.GetClusterInfo().cluster_name
8152 # activate, get path, copy the data over
8153 for idx, disk in enumerate(instance.disks):
8154 self.LogInfo("Copying data for disk %d", idx)
8155 result = self.rpc.call_blockdev_assemble(target_node, (disk, instance),
8156 instance.name, True, idx)
8158 self.LogWarning("Can't assemble newly created disk %d: %s",
8159 idx, result.fail_msg)
8160 errs.append(result.fail_msg)
8162 dev_path = result.payload
8163 result = self.rpc.call_blockdev_export(source_node, (disk, instance),
8164 target_node, dev_path,
8167 self.LogWarning("Can't copy data over for disk %d: %s",
8168 idx, result.fail_msg)
8169 errs.append(result.fail_msg)
8173 self.LogWarning("Some disks failed to copy, aborting")
8175 _RemoveDisks(self, instance, target_node=target_node)
8177 self.cfg.ReleaseDRBDMinors(instance.name)
8178 raise errors.OpExecError("Errors during disk copy: %s" %
8181 instance.primary_node = target_node
8182 self.cfg.Update(instance, feedback_fn)
8184 self.LogInfo("Removing the disks on the original node")
8185 _RemoveDisks(self, instance, target_node=source_node)
8187 # Only start the instance if it's marked as up
8188 if instance.admin_state == constants.ADMINST_UP:
8189 self.LogInfo("Starting instance %s on node %s",
8190 instance.name, target_node)
8192 disks_ok, _ = _AssembleInstanceDisks(self, instance,
8193 ignore_secondaries=True)
8195 _ShutdownInstanceDisks(self, instance)
8196 raise errors.OpExecError("Can't activate the instance's disks")
8198 result = self.rpc.call_instance_start(target_node,
8199 (instance, None, None), False)
8200 msg = result.fail_msg
8202 _ShutdownInstanceDisks(self, instance)
8203 raise errors.OpExecError("Could not start instance %s on node %s: %s" %
8204 (instance.name, target_node, msg))
8207 class LUNodeMigrate(LogicalUnit):
8208 """Migrate all instances from a node.
8211 HPATH = "node-migrate"
8212 HTYPE = constants.HTYPE_NODE
8215 def CheckArguments(self):
8218 def ExpandNames(self):
8219 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
8221 self.share_locks = _ShareAll()
8222 self.needed_locks = {
8223 locking.LEVEL_NODE: [self.op.node_name],
8226 def BuildHooksEnv(self):
8229 This runs on the master, the primary and all the secondaries.
8233 "NODE_NAME": self.op.node_name,
8234 "ALLOW_RUNTIME_CHANGES": self.op.allow_runtime_changes,
8237 def BuildHooksNodes(self):
8238 """Build hooks nodes.
8241 nl = [self.cfg.GetMasterNode()]
8244 def CheckPrereq(self):
8247 def Exec(self, feedback_fn):
8248 # Prepare jobs for migration instances
8249 allow_runtime_changes = self.op.allow_runtime_changes
8251 [opcodes.OpInstanceMigrate(instance_name=inst.name,
8254 iallocator=self.op.iallocator,
8255 target_node=self.op.target_node,
8256 allow_runtime_changes=allow_runtime_changes,
8257 ignore_ipolicy=self.op.ignore_ipolicy)]
8258 for inst in _GetNodePrimaryInstances(self.cfg, self.op.node_name)]
8260 # TODO: Run iallocator in this opcode and pass correct placement options to
8261 # OpInstanceMigrate. Since other jobs can modify the cluster between
8262 # running the iallocator and the actual migration, a good consistency model
8263 # will have to be found.
8265 assert (frozenset(self.owned_locks(locking.LEVEL_NODE)) ==
8266 frozenset([self.op.node_name]))
8268 return ResultWithJobs(jobs)
8271 class TLMigrateInstance(Tasklet):
8272 """Tasklet class for instance migration.
8275 @ivar live: whether the migration will be done live or non-live;
8276 this variable is initalized only after CheckPrereq has run
8277 @type cleanup: boolean
8278 @ivar cleanup: Wheater we cleanup from a failed migration
8279 @type iallocator: string
8280 @ivar iallocator: The iallocator used to determine target_node
8281 @type target_node: string
8282 @ivar target_node: If given, the target_node to reallocate the instance to
8283 @type failover: boolean
8284 @ivar failover: Whether operation results in failover or migration
8285 @type fallback: boolean
8286 @ivar fallback: Whether fallback to failover is allowed if migration not
8288 @type ignore_consistency: boolean
8289 @ivar ignore_consistency: Wheter we should ignore consistency between source
8291 @type shutdown_timeout: int
8292 @ivar shutdown_timeout: In case of failover timeout of the shutdown
8293 @type ignore_ipolicy: bool
8294 @ivar ignore_ipolicy: If true, we can ignore instance policy when migrating
8299 _MIGRATION_POLL_INTERVAL = 1 # seconds
8300 _MIGRATION_FEEDBACK_INTERVAL = 10 # seconds
8302 def __init__(self, lu, instance_name, cleanup, failover, fallback,
8303 ignore_consistency, allow_runtime_changes, shutdown_timeout,
8305 """Initializes this class.
8308 Tasklet.__init__(self, lu)
8311 self.instance_name = instance_name
8312 self.cleanup = cleanup
8313 self.live = False # will be overridden later
8314 self.failover = failover
8315 self.fallback = fallback
8316 self.ignore_consistency = ignore_consistency
8317 self.shutdown_timeout = shutdown_timeout
8318 self.ignore_ipolicy = ignore_ipolicy
8319 self.allow_runtime_changes = allow_runtime_changes
8321 def CheckPrereq(self):
8322 """Check prerequisites.
8324 This checks that the instance is in the cluster.
8327 instance_name = _ExpandInstanceName(self.lu.cfg, self.instance_name)
8328 instance = self.cfg.GetInstanceInfo(instance_name)
8329 assert instance is not None
8330 self.instance = instance
8331 cluster = self.cfg.GetClusterInfo()
8333 if (not self.cleanup and
8334 not instance.admin_state == constants.ADMINST_UP and
8335 not self.failover and self.fallback):
8336 self.lu.LogInfo("Instance is marked down or offline, fallback allowed,"
8337 " switching to failover")
8338 self.failover = True
8340 if instance.disk_template not in constants.DTS_MIRRORED:
8345 raise errors.OpPrereqError("Instance's disk layout '%s' does not allow"
8346 " %s" % (instance.disk_template, text),
8349 if instance.disk_template in constants.DTS_EXT_MIRROR:
8350 assert locking.NAL in self.lu.owned_locks(locking.LEVEL_NODE_ALLOC)
8352 _CheckIAllocatorOrNode(self.lu, "iallocator", "target_node")
8354 if self.lu.op.iallocator:
8355 self._RunAllocator()
8357 # We set set self.target_node as it is required by
8359 self.target_node = self.lu.op.target_node
8361 # Check that the target node is correct in terms of instance policy
8362 nodeinfo = self.cfg.GetNodeInfo(self.target_node)
8363 group_info = self.cfg.GetNodeGroup(nodeinfo.group)
8364 ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster,
8366 _CheckTargetNodeIPolicy(self.lu, ipolicy, instance, nodeinfo,
8367 ignore=self.ignore_ipolicy)
8369 # self.target_node is already populated, either directly or by the
8371 target_node = self.target_node
8372 if self.target_node == instance.primary_node:
8373 raise errors.OpPrereqError("Cannot migrate instance %s"
8374 " to its primary (%s)" %
8375 (instance.name, instance.primary_node),
8378 if len(self.lu.tasklets) == 1:
8379 # It is safe to release locks only when we're the only tasklet
8381 _ReleaseLocks(self.lu, locking.LEVEL_NODE,
8382 keep=[instance.primary_node, self.target_node])
8383 _ReleaseLocks(self.lu, locking.LEVEL_NODE_ALLOC)
8386 assert not self.lu.glm.is_owned(locking.LEVEL_NODE_ALLOC)
8388 secondary_nodes = instance.secondary_nodes
8389 if not secondary_nodes:
8390 raise errors.ConfigurationError("No secondary node but using"
8391 " %s disk template" %
8392 instance.disk_template)
8393 target_node = secondary_nodes[0]
8394 if self.lu.op.iallocator or (self.lu.op.target_node and
8395 self.lu.op.target_node != target_node):
8397 text = "failed over"
8400 raise errors.OpPrereqError("Instances with disk template %s cannot"
8401 " be %s to arbitrary nodes"
8402 " (neither an iallocator nor a target"
8403 " node can be passed)" %
8404 (instance.disk_template, text),
8406 nodeinfo = self.cfg.GetNodeInfo(target_node)
8407 group_info = self.cfg.GetNodeGroup(nodeinfo.group)
8408 ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster,
8410 _CheckTargetNodeIPolicy(self.lu, ipolicy, instance, nodeinfo,
8411 ignore=self.ignore_ipolicy)
8413 i_be = cluster.FillBE(instance)
8415 # check memory requirements on the secondary node
8416 if (not self.cleanup and
8417 (not self.failover or instance.admin_state == constants.ADMINST_UP)):
8418 self.tgt_free_mem = _CheckNodeFreeMemory(self.lu, target_node,
8419 "migrating instance %s" %
8421 i_be[constants.BE_MINMEM],
8422 instance.hypervisor)
8424 self.lu.LogInfo("Not checking memory on the secondary node as"
8425 " instance will not be started")
8427 # check if failover must be forced instead of migration
8428 if (not self.cleanup and not self.failover and
8429 i_be[constants.BE_ALWAYS_FAILOVER]):
8430 self.lu.LogInfo("Instance configured to always failover; fallback"
8432 self.failover = True
8434 # check bridge existance
8435 _CheckInstanceBridgesExist(self.lu, instance, node=target_node)
8437 if not self.cleanup:
8438 _CheckNodeNotDrained(self.lu, target_node)
8439 if not self.failover:
8440 result = self.rpc.call_instance_migratable(instance.primary_node,
8442 if result.fail_msg and self.fallback:
8443 self.lu.LogInfo("Can't migrate, instance offline, fallback to"
8445 self.failover = True
8447 result.Raise("Can't migrate, please use failover",
8448 prereq=True, ecode=errors.ECODE_STATE)
8450 assert not (self.failover and self.cleanup)
8452 if not self.failover:
8453 if self.lu.op.live is not None and self.lu.op.mode is not None:
8454 raise errors.OpPrereqError("Only one of the 'live' and 'mode'"
8455 " parameters are accepted",
8457 if self.lu.op.live is not None:
8459 self.lu.op.mode = constants.HT_MIGRATION_LIVE
8461 self.lu.op.mode = constants.HT_MIGRATION_NONLIVE
8462 # reset the 'live' parameter to None so that repeated
8463 # invocations of CheckPrereq do not raise an exception
8464 self.lu.op.live = None
8465 elif self.lu.op.mode is None:
8466 # read the default value from the hypervisor
8467 i_hv = cluster.FillHV(self.instance, skip_globals=False)
8468 self.lu.op.mode = i_hv[constants.HV_MIGRATION_MODE]
8470 self.live = self.lu.op.mode == constants.HT_MIGRATION_LIVE
8472 # Failover is never live
8475 if not (self.failover or self.cleanup):
8476 remote_info = self.rpc.call_instance_info(instance.primary_node,
8478 instance.hypervisor)
8479 remote_info.Raise("Error checking instance on node %s" %
8480 instance.primary_node)
8481 instance_running = bool(remote_info.payload)
8482 if instance_running:
8483 self.current_mem = int(remote_info.payload["memory"])
8485 def _RunAllocator(self):
8486 """Run the allocator based on input opcode.
8489 assert locking.NAL in self.lu.owned_locks(locking.LEVEL_NODE_ALLOC)
8491 # FIXME: add a self.ignore_ipolicy option
8492 req = iallocator.IAReqRelocate(name=self.instance_name,
8493 relocate_from=[self.instance.primary_node])
8494 ial = iallocator.IAllocator(self.cfg, self.rpc, req)
8496 ial.Run(self.lu.op.iallocator)
8499 raise errors.OpPrereqError("Can't compute nodes using"
8500 " iallocator '%s': %s" %
8501 (self.lu.op.iallocator, ial.info),
8503 self.target_node = ial.result[0]
8504 self.lu.LogInfo("Selected nodes for instance %s via iallocator %s: %s",
8505 self.instance_name, self.lu.op.iallocator,
8506 utils.CommaJoin(ial.result))
8508 def _WaitUntilSync(self):
8509 """Poll with custom rpc for disk sync.
8511 This uses our own step-based rpc call.
8514 self.feedback_fn("* wait until resync is done")
8518 result = self.rpc.call_drbd_wait_sync(self.all_nodes,
8520 (self.instance.disks,
8523 for node, nres in result.items():
8524 nres.Raise("Cannot resync disks on node %s" % node)
8525 node_done, node_percent = nres.payload
8526 all_done = all_done and node_done
8527 if node_percent is not None:
8528 min_percent = min(min_percent, node_percent)
8530 if min_percent < 100:
8531 self.feedback_fn(" - progress: %.1f%%" % min_percent)
8534 def _EnsureSecondary(self, node):
8535 """Demote a node to secondary.
8538 self.feedback_fn("* switching node %s to secondary mode" % node)
8540 for dev in self.instance.disks:
8541 self.cfg.SetDiskID(dev, node)
8543 result = self.rpc.call_blockdev_close(node, self.instance.name,
8544 self.instance.disks)
8545 result.Raise("Cannot change disk to secondary on node %s" % node)
8547 def _GoStandalone(self):
8548 """Disconnect from the network.
8551 self.feedback_fn("* changing into standalone mode")
8552 result = self.rpc.call_drbd_disconnect_net(self.all_nodes, self.nodes_ip,
8553 self.instance.disks)
8554 for node, nres in result.items():
8555 nres.Raise("Cannot disconnect disks node %s" % node)
8557 def _GoReconnect(self, multimaster):
8558 """Reconnect to the network.
8564 msg = "single-master"
8565 self.feedback_fn("* changing disks into %s mode" % msg)
8566 result = self.rpc.call_drbd_attach_net(self.all_nodes, self.nodes_ip,
8567 (self.instance.disks, self.instance),
8568 self.instance.name, multimaster)
8569 for node, nres in result.items():
8570 nres.Raise("Cannot change disks config on node %s" % node)
8572 def _ExecCleanup(self):
8573 """Try to cleanup after a failed migration.
8575 The cleanup is done by:
8576 - check that the instance is running only on one node
8577 (and update the config if needed)
8578 - change disks on its secondary node to secondary
8579 - wait until disks are fully synchronized
8580 - disconnect from the network
8581 - change disks into single-master mode
8582 - wait again until disks are fully synchronized
8585 instance = self.instance
8586 target_node = self.target_node
8587 source_node = self.source_node
8589 # check running on only one node
8590 self.feedback_fn("* checking where the instance actually runs"
8591 " (if this hangs, the hypervisor might be in"
8593 ins_l = self.rpc.call_instance_list(self.all_nodes, [instance.hypervisor])
8594 for node, result in ins_l.items():
8595 result.Raise("Can't contact node %s" % node)
8597 runningon_source = instance.name in ins_l[source_node].payload
8598 runningon_target = instance.name in ins_l[target_node].payload
8600 if runningon_source and runningon_target:
8601 raise errors.OpExecError("Instance seems to be running on two nodes,"
8602 " or the hypervisor is confused; you will have"
8603 " to ensure manually that it runs only on one"
8604 " and restart this operation")
8606 if not (runningon_source or runningon_target):
8607 raise errors.OpExecError("Instance does not seem to be running at all;"
8608 " in this case it's safer to repair by"
8609 " running 'gnt-instance stop' to ensure disk"
8610 " shutdown, and then restarting it")
8612 if runningon_target:
8613 # the migration has actually succeeded, we need to update the config
8614 self.feedback_fn("* instance running on secondary node (%s),"
8615 " updating config" % target_node)
8616 instance.primary_node = target_node
8617 self.cfg.Update(instance, self.feedback_fn)
8618 demoted_node = source_node
8620 self.feedback_fn("* instance confirmed to be running on its"
8621 " primary node (%s)" % source_node)
8622 demoted_node = target_node
8624 if instance.disk_template in constants.DTS_INT_MIRROR:
8625 self._EnsureSecondary(demoted_node)
8627 self._WaitUntilSync()
8628 except errors.OpExecError:
8629 # we ignore here errors, since if the device is standalone, it
8630 # won't be able to sync
8632 self._GoStandalone()
8633 self._GoReconnect(False)
8634 self._WaitUntilSync()
8636 self.feedback_fn("* done")
8638 def _RevertDiskStatus(self):
8639 """Try to revert the disk status after a failed migration.
8642 target_node = self.target_node
8643 if self.instance.disk_template in constants.DTS_EXT_MIRROR:
8647 self._EnsureSecondary(target_node)
8648 self._GoStandalone()
8649 self._GoReconnect(False)
8650 self._WaitUntilSync()
8651 except errors.OpExecError, err:
8652 self.lu.LogWarning("Migration failed and I can't reconnect the drives,"
8653 " please try to recover the instance manually;"
8654 " error '%s'" % str(err))
8656 def _AbortMigration(self):
8657 """Call the hypervisor code to abort a started migration.
8660 instance = self.instance
8661 target_node = self.target_node
8662 source_node = self.source_node
8663 migration_info = self.migration_info
8665 abort_result = self.rpc.call_instance_finalize_migration_dst(target_node,
8669 abort_msg = abort_result.fail_msg
8671 logging.error("Aborting migration failed on target node %s: %s",
8672 target_node, abort_msg)
8673 # Don't raise an exception here, as we stil have to try to revert the
8674 # disk status, even if this step failed.
8676 abort_result = self.rpc.call_instance_finalize_migration_src(
8677 source_node, instance, False, self.live)
8678 abort_msg = abort_result.fail_msg
8680 logging.error("Aborting migration failed on source node %s: %s",
8681 source_node, abort_msg)
8683 def _ExecMigration(self):
8684 """Migrate an instance.
8686 The migrate is done by:
8687 - change the disks into dual-master mode
8688 - wait until disks are fully synchronized again
8689 - migrate the instance
8690 - change disks on the new secondary node (the old primary) to secondary
8691 - wait until disks are fully synchronized
8692 - change disks into single-master mode
8695 instance = self.instance
8696 target_node = self.target_node
8697 source_node = self.source_node
8699 # Check for hypervisor version mismatch and warn the user.
8700 nodeinfo = self.rpc.call_node_info([source_node, target_node],
8701 None, [self.instance.hypervisor])
8702 for ninfo in nodeinfo.values():
8703 ninfo.Raise("Unable to retrieve node information from node '%s'" %
8705 (_, _, (src_info, )) = nodeinfo[source_node].payload
8706 (_, _, (dst_info, )) = nodeinfo[target_node].payload
8708 if ((constants.HV_NODEINFO_KEY_VERSION in src_info) and
8709 (constants.HV_NODEINFO_KEY_VERSION in dst_info)):
8710 src_version = src_info[constants.HV_NODEINFO_KEY_VERSION]
8711 dst_version = dst_info[constants.HV_NODEINFO_KEY_VERSION]
8712 if src_version != dst_version:
8713 self.feedback_fn("* warning: hypervisor version mismatch between"
8714 " source (%s) and target (%s) node" %
8715 (src_version, dst_version))
8717 self.feedback_fn("* checking disk consistency between source and target")
8718 for (idx, dev) in enumerate(instance.disks):
8719 if not _CheckDiskConsistency(self.lu, instance, dev, target_node, False):
8720 raise errors.OpExecError("Disk %s is degraded or not fully"
8721 " synchronized on target node,"
8722 " aborting migration" % idx)
8724 if self.current_mem > self.tgt_free_mem:
8725 if not self.allow_runtime_changes:
8726 raise errors.OpExecError("Memory ballooning not allowed and not enough"
8727 " free memory to fit instance %s on target"
8728 " node %s (have %dMB, need %dMB)" %
8729 (instance.name, target_node,
8730 self.tgt_free_mem, self.current_mem))
8731 self.feedback_fn("* setting instance memory to %s" % self.tgt_free_mem)
8732 rpcres = self.rpc.call_instance_balloon_memory(instance.primary_node,
8735 rpcres.Raise("Cannot modify instance runtime memory")
8737 # First get the migration information from the remote node
8738 result = self.rpc.call_migration_info(source_node, instance)
8739 msg = result.fail_msg
8741 log_err = ("Failed fetching source migration information from %s: %s" %
8743 logging.error(log_err)
8744 raise errors.OpExecError(log_err)
8746 self.migration_info = migration_info = result.payload
8748 if self.instance.disk_template not in constants.DTS_EXT_MIRROR:
8749 # Then switch the disks to master/master mode
8750 self._EnsureSecondary(target_node)
8751 self._GoStandalone()
8752 self._GoReconnect(True)
8753 self._WaitUntilSync()
8755 self.feedback_fn("* preparing %s to accept the instance" % target_node)
8756 result = self.rpc.call_accept_instance(target_node,
8759 self.nodes_ip[target_node])
8761 msg = result.fail_msg
8763 logging.error("Instance pre-migration failed, trying to revert"
8764 " disk status: %s", msg)
8765 self.feedback_fn("Pre-migration failed, aborting")
8766 self._AbortMigration()
8767 self._RevertDiskStatus()
8768 raise errors.OpExecError("Could not pre-migrate instance %s: %s" %
8769 (instance.name, msg))
8771 self.feedback_fn("* migrating instance to %s" % target_node)
8772 result = self.rpc.call_instance_migrate(source_node, instance,
8773 self.nodes_ip[target_node],
8775 msg = result.fail_msg
8777 logging.error("Instance migration failed, trying to revert"
8778 " disk status: %s", msg)
8779 self.feedback_fn("Migration failed, aborting")
8780 self._AbortMigration()
8781 self._RevertDiskStatus()
8782 raise errors.OpExecError("Could not migrate instance %s: %s" %
8783 (instance.name, msg))
8785 self.feedback_fn("* starting memory transfer")
8786 last_feedback = time.time()
8788 result = self.rpc.call_instance_get_migration_status(source_node,
8790 msg = result.fail_msg
8791 ms = result.payload # MigrationStatus instance
8792 if msg or (ms.status in constants.HV_MIGRATION_FAILED_STATUSES):
8793 logging.error("Instance migration failed, trying to revert"
8794 " disk status: %s", msg)
8795 self.feedback_fn("Migration failed, aborting")
8796 self._AbortMigration()
8797 self._RevertDiskStatus()
8799 msg = "hypervisor returned failure"
8800 raise errors.OpExecError("Could not migrate instance %s: %s" %
8801 (instance.name, msg))
8803 if result.payload.status != constants.HV_MIGRATION_ACTIVE:
8804 self.feedback_fn("* memory transfer complete")
8807 if (utils.TimeoutExpired(last_feedback,
8808 self._MIGRATION_FEEDBACK_INTERVAL) and
8809 ms.transferred_ram is not None):
8810 mem_progress = 100 * float(ms.transferred_ram) / float(ms.total_ram)
8811 self.feedback_fn("* memory transfer progress: %.2f %%" % mem_progress)
8812 last_feedback = time.time()
8814 time.sleep(self._MIGRATION_POLL_INTERVAL)
8816 result = self.rpc.call_instance_finalize_migration_src(source_node,
8820 msg = result.fail_msg
8822 logging.error("Instance migration succeeded, but finalization failed"
8823 " on the source node: %s", msg)
8824 raise errors.OpExecError("Could not finalize instance migration: %s" %
8827 instance.primary_node = target_node
8829 # distribute new instance config to the other nodes
8830 self.cfg.Update(instance, self.feedback_fn)
8832 result = self.rpc.call_instance_finalize_migration_dst(target_node,
8836 msg = result.fail_msg
8838 logging.error("Instance migration succeeded, but finalization failed"
8839 " on the target node: %s", msg)
8840 raise errors.OpExecError("Could not finalize instance migration: %s" %
8843 if self.instance.disk_template not in constants.DTS_EXT_MIRROR:
8844 self._EnsureSecondary(source_node)
8845 self._WaitUntilSync()
8846 self._GoStandalone()
8847 self._GoReconnect(False)
8848 self._WaitUntilSync()
8850 # If the instance's disk template is `rbd' and there was a successful
8851 # migration, unmap the device from the source node.
8852 if self.instance.disk_template == constants.DT_RBD:
8853 disks = _ExpandCheckDisks(instance, instance.disks)
8854 self.feedback_fn("* unmapping instance's disks from %s" % source_node)
8856 result = self.rpc.call_blockdev_shutdown(source_node, (disk, instance))
8857 msg = result.fail_msg
8859 logging.error("Migration was successful, but couldn't unmap the"
8860 " block device %s on source node %s: %s",
8861 disk.iv_name, source_node, msg)
8862 logging.error("You need to unmap the device %s manually on %s",
8863 disk.iv_name, source_node)
8865 self.feedback_fn("* done")
8867 def _ExecFailover(self):
8868 """Failover an instance.
8870 The failover is done by shutting it down on its present node and
8871 starting it on the secondary.
8874 instance = self.instance
8875 primary_node = self.cfg.GetNodeInfo(instance.primary_node)
8877 source_node = instance.primary_node
8878 target_node = self.target_node
8880 if instance.admin_state == constants.ADMINST_UP:
8881 self.feedback_fn("* checking disk consistency between source and target")
8882 for (idx, dev) in enumerate(instance.disks):
8883 # for drbd, these are drbd over lvm
8884 if not _CheckDiskConsistency(self.lu, instance, dev, target_node,
8886 if primary_node.offline:
8887 self.feedback_fn("Node %s is offline, ignoring degraded disk %s on"
8889 (primary_node.name, idx, target_node))
8890 elif not self.ignore_consistency:
8891 raise errors.OpExecError("Disk %s is degraded on target node,"
8892 " aborting failover" % idx)
8894 self.feedback_fn("* not checking disk consistency as instance is not"
8897 self.feedback_fn("* shutting down instance on source node")
8898 logging.info("Shutting down instance %s on node %s",
8899 instance.name, source_node)
8901 result = self.rpc.call_instance_shutdown(source_node, instance,
8902 self.shutdown_timeout)
8903 msg = result.fail_msg
8905 if self.ignore_consistency or primary_node.offline:
8906 self.lu.LogWarning("Could not shutdown instance %s on node %s,"
8907 " proceeding anyway; please make sure node"
8908 " %s is down; error details: %s",
8909 instance.name, source_node, source_node, msg)
8911 raise errors.OpExecError("Could not shutdown instance %s on"
8913 (instance.name, source_node, msg))
8915 self.feedback_fn("* deactivating the instance's disks on source node")
8916 if not _ShutdownInstanceDisks(self.lu, instance, ignore_primary=True):
8917 raise errors.OpExecError("Can't shut down the instance's disks")
8919 instance.primary_node = target_node
8920 # distribute new instance config to the other nodes
8921 self.cfg.Update(instance, self.feedback_fn)
8923 # Only start the instance if it's marked as up
8924 if instance.admin_state == constants.ADMINST_UP:
8925 self.feedback_fn("* activating the instance's disks on target node %s" %
8927 logging.info("Starting instance %s on node %s",
8928 instance.name, target_node)
8930 disks_ok, _ = _AssembleInstanceDisks(self.lu, instance,
8931 ignore_secondaries=True)
8933 _ShutdownInstanceDisks(self.lu, instance)
8934 raise errors.OpExecError("Can't activate the instance's disks")
8936 self.feedback_fn("* starting the instance on the target node %s" %
8938 result = self.rpc.call_instance_start(target_node, (instance, None, None),
8940 msg = result.fail_msg
8942 _ShutdownInstanceDisks(self.lu, instance)
8943 raise errors.OpExecError("Could not start instance %s on node %s: %s" %
8944 (instance.name, target_node, msg))
8946 def Exec(self, feedback_fn):
8947 """Perform the migration.
8950 self.feedback_fn = feedback_fn
8951 self.source_node = self.instance.primary_node
8953 # FIXME: if we implement migrate-to-any in DRBD, this needs fixing
8954 if self.instance.disk_template in constants.DTS_INT_MIRROR:
8955 self.target_node = self.instance.secondary_nodes[0]
8956 # Otherwise self.target_node has been populated either
8957 # directly, or through an iallocator.
8959 self.all_nodes = [self.source_node, self.target_node]
8960 self.nodes_ip = dict((name, node.secondary_ip) for (name, node)
8961 in self.cfg.GetMultiNodeInfo(self.all_nodes))
8964 feedback_fn("Failover instance %s" % self.instance.name)
8965 self._ExecFailover()
8967 feedback_fn("Migrating instance %s" % self.instance.name)
8970 return self._ExecCleanup()
8972 return self._ExecMigration()
8975 def _CreateBlockDev(lu, node, instance, device, force_create, info,
8977 """Wrapper around L{_CreateBlockDevInner}.
8979 This method annotates the root device first.
8982 (disk,) = _AnnotateDiskParams(instance, [device], lu.cfg)
8983 return _CreateBlockDevInner(lu, node, instance, disk, force_create, info,
8987 def _CreateBlockDevInner(lu, node, instance, device, force_create,
8989 """Create a tree of block devices on a given node.
8991 If this device type has to be created on secondaries, create it and
8994 If not, just recurse to children keeping the same 'force' value.
8996 @attention: The device has to be annotated already.
8998 @param lu: the lu on whose behalf we execute
8999 @param node: the node on which to create the device
9000 @type instance: L{objects.Instance}
9001 @param instance: the instance which owns the device
9002 @type device: L{objects.Disk}
9003 @param device: the device to create
9004 @type force_create: boolean
9005 @param force_create: whether to force creation of this device; this
9006 will be change to True whenever we find a device which has
9007 CreateOnSecondary() attribute
9008 @param info: the extra 'metadata' we should attach to the device
9009 (this will be represented as a LVM tag)
9010 @type force_open: boolean
9011 @param force_open: this parameter will be passes to the
9012 L{backend.BlockdevCreate} function where it specifies
9013 whether we run on primary or not, and it affects both
9014 the child assembly and the device own Open() execution
9017 if device.CreateOnSecondary():
9021 for child in device.children:
9022 _CreateBlockDevInner(lu, node, instance, child, force_create,
9025 if not force_create:
9028 _CreateSingleBlockDev(lu, node, instance, device, info, force_open)
9031 def _CreateSingleBlockDev(lu, node, instance, device, info, force_open):
9032 """Create a single block device on a given node.
9034 This will not recurse over children of the device, so they must be
9037 @param lu: the lu on whose behalf we execute
9038 @param node: the node on which to create the device
9039 @type instance: L{objects.Instance}
9040 @param instance: the instance which owns the device
9041 @type device: L{objects.Disk}
9042 @param device: the device to create
9043 @param info: the extra 'metadata' we should attach to the device
9044 (this will be represented as a LVM tag)
9045 @type force_open: boolean
9046 @param force_open: this parameter will be passes to the
9047 L{backend.BlockdevCreate} function where it specifies
9048 whether we run on primary or not, and it affects both
9049 the child assembly and the device own Open() execution
9052 lu.cfg.SetDiskID(device, node)
9053 result = lu.rpc.call_blockdev_create(node, device, device.size,
9054 instance.name, force_open, info)
9055 result.Raise("Can't create block device %s on"
9056 " node %s for instance %s" % (device, node, instance.name))
9057 if device.physical_id is None:
9058 device.physical_id = result.payload
9061 def _GenerateUniqueNames(lu, exts):
9062 """Generate a suitable LV name.
9064 This will generate a logical volume name for the given instance.
9069 new_id = lu.cfg.GenerateUniqueID(lu.proc.GetECId())
9070 results.append("%s%s" % (new_id, val))
9074 def _GenerateDRBD8Branch(lu, primary, secondary, size, vgnames, names,
9075 iv_name, p_minor, s_minor):
9076 """Generate a drbd8 device complete with its children.
9079 assert len(vgnames) == len(names) == 2
9080 port = lu.cfg.AllocatePort()
9081 shared_secret = lu.cfg.GenerateDRBDSecret(lu.proc.GetECId())
9083 dev_data = objects.Disk(dev_type=constants.LD_LV, size=size,
9084 logical_id=(vgnames[0], names[0]),
9086 dev_meta = objects.Disk(dev_type=constants.LD_LV,
9087 size=constants.DRBD_META_SIZE,
9088 logical_id=(vgnames[1], names[1]),
9090 drbd_dev = objects.Disk(dev_type=constants.LD_DRBD8, size=size,
9091 logical_id=(primary, secondary, port,
9094 children=[dev_data, dev_meta],
9095 iv_name=iv_name, params={})
9099 _DISK_TEMPLATE_NAME_PREFIX = {
9100 constants.DT_PLAIN: "",
9101 constants.DT_RBD: ".rbd",
9105 _DISK_TEMPLATE_DEVICE_TYPE = {
9106 constants.DT_PLAIN: constants.LD_LV,
9107 constants.DT_FILE: constants.LD_FILE,
9108 constants.DT_SHARED_FILE: constants.LD_FILE,
9109 constants.DT_BLOCK: constants.LD_BLOCKDEV,
9110 constants.DT_RBD: constants.LD_RBD,
9114 def _GenerateDiskTemplate(
9115 lu, template_name, instance_name, primary_node, secondary_nodes,
9116 disk_info, file_storage_dir, file_driver, base_index,
9117 feedback_fn, full_disk_params, _req_file_storage=opcodes.RequireFileStorage,
9118 _req_shr_file_storage=opcodes.RequireSharedFileStorage):
9119 """Generate the entire disk layout for a given template type.
9122 vgname = lu.cfg.GetVGName()
9123 disk_count = len(disk_info)
9126 if template_name == constants.DT_DISKLESS:
9128 elif template_name == constants.DT_DRBD8:
9129 if len(secondary_nodes) != 1:
9130 raise errors.ProgrammerError("Wrong template configuration")
9131 remote_node = secondary_nodes[0]
9132 minors = lu.cfg.AllocateDRBDMinor(
9133 [primary_node, remote_node] * len(disk_info), instance_name)
9135 (drbd_params, _, _) = objects.Disk.ComputeLDParams(template_name,
9137 drbd_default_metavg = drbd_params[constants.LDP_DEFAULT_METAVG]
9140 for lv_prefix in _GenerateUniqueNames(lu, [".disk%d" % (base_index + i)
9141 for i in range(disk_count)]):
9142 names.append(lv_prefix + "_data")
9143 names.append(lv_prefix + "_meta")
9144 for idx, disk in enumerate(disk_info):
9145 disk_index = idx + base_index
9146 data_vg = disk.get(constants.IDISK_VG, vgname)
9147 meta_vg = disk.get(constants.IDISK_METAVG, drbd_default_metavg)
9148 disk_dev = _GenerateDRBD8Branch(lu, primary_node, remote_node,
9149 disk[constants.IDISK_SIZE],
9151 names[idx * 2:idx * 2 + 2],
9152 "disk/%d" % disk_index,
9153 minors[idx * 2], minors[idx * 2 + 1])
9154 disk_dev.mode = disk[constants.IDISK_MODE]
9155 disks.append(disk_dev)
9158 raise errors.ProgrammerError("Wrong template configuration")
9160 if template_name == constants.DT_FILE:
9162 elif template_name == constants.DT_SHARED_FILE:
9163 _req_shr_file_storage()
9165 name_prefix = _DISK_TEMPLATE_NAME_PREFIX.get(template_name, None)
9166 if name_prefix is None:
9169 names = _GenerateUniqueNames(lu, ["%s.disk%s" %
9170 (name_prefix, base_index + i)
9171 for i in range(disk_count)])
9173 if template_name == constants.DT_PLAIN:
9175 def logical_id_fn(idx, _, disk):
9176 vg = disk.get(constants.IDISK_VG, vgname)
9177 return (vg, names[idx])
9179 elif template_name in (constants.DT_FILE, constants.DT_SHARED_FILE):
9181 lambda _, disk_index, disk: (file_driver,
9182 "%s/disk%d" % (file_storage_dir,
9184 elif template_name == constants.DT_BLOCK:
9186 lambda idx, disk_index, disk: (constants.BLOCKDEV_DRIVER_MANUAL,
9187 disk[constants.IDISK_ADOPT])
9188 elif template_name == constants.DT_RBD:
9189 logical_id_fn = lambda idx, _, disk: ("rbd", names[idx])
9191 raise errors.ProgrammerError("Unknown disk template '%s'" % template_name)
9193 dev_type = _DISK_TEMPLATE_DEVICE_TYPE[template_name]
9195 for idx, disk in enumerate(disk_info):
9196 disk_index = idx + base_index
9197 size = disk[constants.IDISK_SIZE]
9198 feedback_fn("* disk %s, size %s" %
9199 (disk_index, utils.FormatUnit(size, "h")))
9200 disks.append(objects.Disk(dev_type=dev_type, size=size,
9201 logical_id=logical_id_fn(idx, disk_index, disk),
9202 iv_name="disk/%d" % disk_index,
9203 mode=disk[constants.IDISK_MODE],
9209 def _GetInstanceInfoText(instance):
9210 """Compute that text that should be added to the disk's metadata.
9213 return "originstname+%s" % instance.name
9216 def _CalcEta(time_taken, written, total_size):
9217 """Calculates the ETA based on size written and total size.
9219 @param time_taken: The time taken so far
9220 @param written: amount written so far
9221 @param total_size: The total size of data to be written
9222 @return: The remaining time in seconds
9225 avg_time = time_taken / float(written)
9226 return (total_size - written) * avg_time
9229 def _WipeDisks(lu, instance, disks=None):
9230 """Wipes instance disks.
9232 @type lu: L{LogicalUnit}
9233 @param lu: the logical unit on whose behalf we execute
9234 @type instance: L{objects.Instance}
9235 @param instance: the instance whose disks we should create
9236 @return: the success of the wipe
9239 node = instance.primary_node
9242 disks = [(idx, disk, 0)
9243 for (idx, disk) in enumerate(instance.disks)]
9245 for (_, device, _) in disks:
9246 lu.cfg.SetDiskID(device, node)
9248 logging.info("Pausing synchronization of disks of instance '%s'",
9250 result = lu.rpc.call_blockdev_pause_resume_sync(node,
9251 (map(compat.snd, disks),
9254 result.Raise("Failed to pause disk synchronization on node '%s'" % node)
9256 for idx, success in enumerate(result.payload):
9258 logging.warn("Pausing synchronization of disk %s of instance '%s'"
9259 " failed", idx, instance.name)
9262 for (idx, device, offset) in disks:
9263 # The wipe size is MIN_WIPE_CHUNK_PERCENT % of the instance disk but
9264 # MAX_WIPE_CHUNK at max. Truncating to integer to avoid rounding errors.
9266 int(min(constants.MAX_WIPE_CHUNK,
9267 device.size / 100.0 * constants.MIN_WIPE_CHUNK_PERCENT))
9271 start_time = time.time()
9276 info_text = (" (from %s to %s)" %
9277 (utils.FormatUnit(offset, "h"),
9278 utils.FormatUnit(size, "h")))
9280 lu.LogInfo("* Wiping disk %s%s", idx, info_text)
9282 logging.info("Wiping disk %d for instance %s on node %s using"
9283 " chunk size %s", idx, instance.name, node, wipe_chunk_size)
9285 while offset < size:
9286 wipe_size = min(wipe_chunk_size, size - offset)
9288 logging.debug("Wiping disk %d, offset %s, chunk %s",
9289 idx, offset, wipe_size)
9291 result = lu.rpc.call_blockdev_wipe(node, (device, instance), offset,
9293 result.Raise("Could not wipe disk %d at offset %d for size %d" %
9294 (idx, offset, wipe_size))
9298 if now - last_output >= 60:
9299 eta = _CalcEta(now - start_time, offset, size)
9300 lu.LogInfo(" - done: %.1f%% ETA: %s",
9301 offset / float(size) * 100, utils.FormatSeconds(eta))
9304 logging.info("Resuming synchronization of disks for instance '%s'",
9307 result = lu.rpc.call_blockdev_pause_resume_sync(node,
9308 (map(compat.snd, disks),
9313 lu.LogWarning("Failed to resume disk synchronization on node '%s': %s",
9314 node, result.fail_msg)
9316 for idx, success in enumerate(result.payload):
9318 lu.LogWarning("Resuming synchronization of disk %s of instance '%s'"
9319 " failed", idx, instance.name)
9322 def _CreateDisks(lu, instance, to_skip=None, target_node=None):
9323 """Create all disks for an instance.
9325 This abstracts away some work from AddInstance.
9327 @type lu: L{LogicalUnit}
9328 @param lu: the logical unit on whose behalf we execute
9329 @type instance: L{objects.Instance}
9330 @param instance: the instance whose disks we should create
9332 @param to_skip: list of indices to skip
9333 @type target_node: string
9334 @param target_node: if passed, overrides the target node for creation
9336 @return: the success of the creation
9339 info = _GetInstanceInfoText(instance)
9340 if target_node is None:
9341 pnode = instance.primary_node
9342 all_nodes = instance.all_nodes
9347 if instance.disk_template in constants.DTS_FILEBASED:
9348 file_storage_dir = os.path.dirname(instance.disks[0].logical_id[1])
9349 result = lu.rpc.call_file_storage_dir_create(pnode, file_storage_dir)
9351 result.Raise("Failed to create directory '%s' on"
9352 " node %s" % (file_storage_dir, pnode))
9354 # Note: this needs to be kept in sync with adding of disks in
9355 # LUInstanceSetParams
9356 for idx, device in enumerate(instance.disks):
9357 if to_skip and idx in to_skip:
9359 logging.info("Creating disk %s for instance '%s'", idx, instance.name)
9361 for node in all_nodes:
9362 f_create = node == pnode
9363 _CreateBlockDev(lu, node, instance, device, f_create, info, f_create)
9366 def _RemoveDisks(lu, instance, target_node=None, ignore_failures=False):
9367 """Remove all disks for an instance.
9369 This abstracts away some work from `AddInstance()` and
9370 `RemoveInstance()`. Note that in case some of the devices couldn't
9371 be removed, the removal will continue with the other ones (compare
9372 with `_CreateDisks()`).
9374 @type lu: L{LogicalUnit}
9375 @param lu: the logical unit on whose behalf we execute
9376 @type instance: L{objects.Instance}
9377 @param instance: the instance whose disks we should remove
9378 @type target_node: string
9379 @param target_node: used to override the node on which to remove the disks
9381 @return: the success of the removal
9384 logging.info("Removing block devices for instance %s", instance.name)
9387 ports_to_release = set()
9388 anno_disks = _AnnotateDiskParams(instance, instance.disks, lu.cfg)
9389 for (idx, device) in enumerate(anno_disks):
9391 edata = [(target_node, device)]
9393 edata = device.ComputeNodeTree(instance.primary_node)
9394 for node, disk in edata:
9395 lu.cfg.SetDiskID(disk, node)
9396 result = lu.rpc.call_blockdev_remove(node, disk)
9398 lu.LogWarning("Could not remove disk %s on node %s,"
9399 " continuing anyway: %s", idx, node, result.fail_msg)
9400 if not (result.offline and node != instance.primary_node):
9403 # if this is a DRBD disk, return its port to the pool
9404 if device.dev_type in constants.LDS_DRBD:
9405 ports_to_release.add(device.logical_id[2])
9407 if all_result or ignore_failures:
9408 for port in ports_to_release:
9409 lu.cfg.AddTcpUdpPort(port)
9411 if instance.disk_template in constants.DTS_FILEBASED:
9412 file_storage_dir = os.path.dirname(instance.disks[0].logical_id[1])
9416 tgt = instance.primary_node
9417 result = lu.rpc.call_file_storage_dir_remove(tgt, file_storage_dir)
9419 lu.LogWarning("Could not remove directory '%s' on node %s: %s",
9420 file_storage_dir, instance.primary_node, result.fail_msg)
9426 def _ComputeDiskSizePerVG(disk_template, disks):
9427 """Compute disk size requirements in the volume group
9430 def _compute(disks, payload):
9431 """Universal algorithm.
9436 vgs[disk[constants.IDISK_VG]] = \
9437 vgs.get(constants.IDISK_VG, 0) + disk[constants.IDISK_SIZE] + payload
9441 # Required free disk space as a function of disk and swap space
9443 constants.DT_DISKLESS: {},
9444 constants.DT_PLAIN: _compute(disks, 0),
9445 # 128 MB are added for drbd metadata for each disk
9446 constants.DT_DRBD8: _compute(disks, constants.DRBD_META_SIZE),
9447 constants.DT_FILE: {},
9448 constants.DT_SHARED_FILE: {},
9451 if disk_template not in req_size_dict:
9452 raise errors.ProgrammerError("Disk template '%s' size requirement"
9453 " is unknown" % disk_template)
9455 return req_size_dict[disk_template]
9458 def _FilterVmNodes(lu, nodenames):
9459 """Filters out non-vm_capable nodes from a list.
9461 @type lu: L{LogicalUnit}
9462 @param lu: the logical unit for which we check
9463 @type nodenames: list
9464 @param nodenames: the list of nodes on which we should check
9466 @return: the list of vm-capable nodes
9469 vm_nodes = frozenset(lu.cfg.GetNonVmCapableNodeList())
9470 return [name for name in nodenames if name not in vm_nodes]
9473 def _CheckHVParams(lu, nodenames, hvname, hvparams):
9474 """Hypervisor parameter validation.
9476 This function abstract the hypervisor parameter validation to be
9477 used in both instance create and instance modify.
9479 @type lu: L{LogicalUnit}
9480 @param lu: the logical unit for which we check
9481 @type nodenames: list
9482 @param nodenames: the list of nodes on which we should check
9483 @type hvname: string
9484 @param hvname: the name of the hypervisor we should use
9485 @type hvparams: dict
9486 @param hvparams: the parameters which we need to check
9487 @raise errors.OpPrereqError: if the parameters are not valid
9490 nodenames = _FilterVmNodes(lu, nodenames)
9492 cluster = lu.cfg.GetClusterInfo()
9493 hvfull = objects.FillDict(cluster.hvparams.get(hvname, {}), hvparams)
9495 hvinfo = lu.rpc.call_hypervisor_validate_params(nodenames, hvname, hvfull)
9496 for node in nodenames:
9500 info.Raise("Hypervisor parameter validation failed on node %s" % node)
9503 def _CheckOSParams(lu, required, nodenames, osname, osparams):
9504 """OS parameters validation.
9506 @type lu: L{LogicalUnit}
9507 @param lu: the logical unit for which we check
9508 @type required: boolean
9509 @param required: whether the validation should fail if the OS is not
9511 @type nodenames: list
9512 @param nodenames: the list of nodes on which we should check
9513 @type osname: string
9514 @param osname: the name of the hypervisor we should use
9515 @type osparams: dict
9516 @param osparams: the parameters which we need to check
9517 @raise errors.OpPrereqError: if the parameters are not valid
9520 nodenames = _FilterVmNodes(lu, nodenames)
9521 result = lu.rpc.call_os_validate(nodenames, required, osname,
9522 [constants.OS_VALIDATE_PARAMETERS],
9524 for node, nres in result.items():
9525 # we don't check for offline cases since this should be run only
9526 # against the master node and/or an instance's nodes
9527 nres.Raise("OS Parameters validation failed on node %s" % node)
9528 if not nres.payload:
9529 lu.LogInfo("OS %s not found on node %s, validation skipped",
9533 def _CreateInstanceAllocRequest(op, disks, nics, beparams, node_whitelist):
9534 """Wrapper around IAReqInstanceAlloc.
9536 @param op: The instance opcode
9537 @param disks: The computed disks
9538 @param nics: The computed nics
9539 @param beparams: The full filled beparams
9540 @param node_whitelist: List of nodes which should appear as online to the
9541 allocator (unless the node is already marked offline)
9543 @returns: A filled L{iallocator.IAReqInstanceAlloc}
9546 spindle_use = beparams[constants.BE_SPINDLE_USE]
9547 return iallocator.IAReqInstanceAlloc(name=op.instance_name,
9548 disk_template=op.disk_template,
9551 vcpus=beparams[constants.BE_VCPUS],
9552 memory=beparams[constants.BE_MAXMEM],
9553 spindle_use=spindle_use,
9555 nics=[n.ToDict() for n in nics],
9556 hypervisor=op.hypervisor,
9557 node_whitelist=node_whitelist)
9560 def _ComputeNics(op, cluster, default_ip, cfg, ec_id):
9561 """Computes the nics.
9563 @param op: The instance opcode
9564 @param cluster: Cluster configuration object
9565 @param default_ip: The default ip to assign
9566 @param cfg: An instance of the configuration object
9567 @param ec_id: Execution context ID
9569 @returns: The build up nics
9574 nic_mode_req = nic.get(constants.INIC_MODE, None)
9575 nic_mode = nic_mode_req
9576 if nic_mode is None or nic_mode == constants.VALUE_AUTO:
9577 nic_mode = cluster.nicparams[constants.PP_DEFAULT][constants.NIC_MODE]
9579 net = nic.get(constants.INIC_NETWORK, None)
9580 link = nic.get(constants.NIC_LINK, None)
9581 ip = nic.get(constants.INIC_IP, None)
9583 if net is None or net.lower() == constants.VALUE_NONE:
9586 if nic_mode_req is not None or link is not None:
9587 raise errors.OpPrereqError("If network is given, no mode or link"
9588 " is allowed to be passed",
9591 # ip validity checks
9592 if ip is None or ip.lower() == constants.VALUE_NONE:
9594 elif ip.lower() == constants.VALUE_AUTO:
9595 if not op.name_check:
9596 raise errors.OpPrereqError("IP address set to auto but name checks"
9597 " have been skipped",
9601 # We defer pool operations until later, so that the iallocator has
9602 # filled in the instance's node(s) dimara
9603 if ip.lower() == constants.NIC_IP_POOL:
9605 raise errors.OpPrereqError("if ip=pool, parameter network"
9606 " must be passed too",
9609 elif not netutils.IPAddress.IsValid(ip):
9610 raise errors.OpPrereqError("Invalid IP address '%s'" % ip,
9615 # TODO: check the ip address for uniqueness
9616 if nic_mode == constants.NIC_MODE_ROUTED and not nic_ip:
9617 raise errors.OpPrereqError("Routed nic mode requires an ip address",
9620 # MAC address verification
9621 mac = nic.get(constants.INIC_MAC, constants.VALUE_AUTO)
9622 if mac not in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
9623 mac = utils.NormalizeAndValidateMac(mac)
9626 # TODO: We need to factor this out
9627 cfg.ReserveMAC(mac, ec_id)
9628 except errors.ReservationError:
9629 raise errors.OpPrereqError("MAC address %s already in use"
9630 " in cluster" % mac,
9631 errors.ECODE_NOTUNIQUE)
9633 # Build nic parameters
9636 nicparams[constants.NIC_MODE] = nic_mode
9638 nicparams[constants.NIC_LINK] = link
9640 check_params = cluster.SimpleFillNIC(nicparams)
9641 objects.NIC.CheckParameterSyntax(check_params)
9642 nics.append(objects.NIC(mac=mac, ip=nic_ip,
9643 network=net, nicparams=nicparams))
9648 def _ComputeDisks(op, default_vg):
9649 """Computes the instance disks.
9651 @param op: The instance opcode
9652 @param default_vg: The default_vg to assume
9654 @return: The computer disks
9658 for disk in op.disks:
9659 mode = disk.get(constants.IDISK_MODE, constants.DISK_RDWR)
9660 if mode not in constants.DISK_ACCESS_SET:
9661 raise errors.OpPrereqError("Invalid disk access mode '%s'" %
9662 mode, errors.ECODE_INVAL)
9663 size = disk.get(constants.IDISK_SIZE, None)
9665 raise errors.OpPrereqError("Missing disk size", errors.ECODE_INVAL)
9668 except (TypeError, ValueError):
9669 raise errors.OpPrereqError("Invalid disk size '%s'" % size,
9672 data_vg = disk.get(constants.IDISK_VG, default_vg)
9674 constants.IDISK_SIZE: size,
9675 constants.IDISK_MODE: mode,
9676 constants.IDISK_VG: data_vg,
9678 if constants.IDISK_METAVG in disk:
9679 new_disk[constants.IDISK_METAVG] = disk[constants.IDISK_METAVG]
9680 if constants.IDISK_ADOPT in disk:
9681 new_disk[constants.IDISK_ADOPT] = disk[constants.IDISK_ADOPT]
9682 disks.append(new_disk)
9687 def _ComputeFullBeParams(op, cluster):
9688 """Computes the full beparams.
9690 @param op: The instance opcode
9691 @param cluster: The cluster config object
9693 @return: The fully filled beparams
9696 default_beparams = cluster.beparams[constants.PP_DEFAULT]
9697 for param, value in op.beparams.iteritems():
9698 if value == constants.VALUE_AUTO:
9699 op.beparams[param] = default_beparams[param]
9700 objects.UpgradeBeParams(op.beparams)
9701 utils.ForceDictType(op.beparams, constants.BES_PARAMETER_TYPES)
9702 return cluster.SimpleFillBE(op.beparams)
9705 class LUInstanceCreate(LogicalUnit):
9706 """Create an instance.
9709 HPATH = "instance-add"
9710 HTYPE = constants.HTYPE_INSTANCE
9713 def CheckArguments(self):
9717 # do not require name_check to ease forward/backward compatibility
9719 if self.op.no_install and self.op.start:
9720 self.LogInfo("No-installation mode selected, disabling startup")
9721 self.op.start = False
9722 # validate/normalize the instance name
9723 self.op.instance_name = \
9724 netutils.Hostname.GetNormalizedName(self.op.instance_name)
9726 if self.op.ip_check and not self.op.name_check:
9727 # TODO: make the ip check more flexible and not depend on the name check
9728 raise errors.OpPrereqError("Cannot do IP address check without a name"
9729 " check", errors.ECODE_INVAL)
9731 # check nics' parameter names
9732 for nic in self.op.nics:
9733 utils.ForceDictType(nic, constants.INIC_PARAMS_TYPES)
9735 # check disks. parameter names and consistent adopt/no-adopt strategy
9736 has_adopt = has_no_adopt = False
9737 for disk in self.op.disks:
9738 utils.ForceDictType(disk, constants.IDISK_PARAMS_TYPES)
9739 if constants.IDISK_ADOPT in disk:
9743 if has_adopt and has_no_adopt:
9744 raise errors.OpPrereqError("Either all disks are adopted or none is",
9747 if self.op.disk_template not in constants.DTS_MAY_ADOPT:
9748 raise errors.OpPrereqError("Disk adoption is not supported for the"
9749 " '%s' disk template" %
9750 self.op.disk_template,
9752 if self.op.iallocator is not None:
9753 raise errors.OpPrereqError("Disk adoption not allowed with an"
9754 " iallocator script", errors.ECODE_INVAL)
9755 if self.op.mode == constants.INSTANCE_IMPORT:
9756 raise errors.OpPrereqError("Disk adoption not allowed for"
9757 " instance import", errors.ECODE_INVAL)
9759 if self.op.disk_template in constants.DTS_MUST_ADOPT:
9760 raise errors.OpPrereqError("Disk template %s requires disk adoption,"
9761 " but no 'adopt' parameter given" %
9762 self.op.disk_template,
9765 self.adopt_disks = has_adopt
9767 # instance name verification
9768 if self.op.name_check:
9769 self.hostname1 = _CheckHostnameSane(self, self.op.instance_name)
9770 self.op.instance_name = self.hostname1.name
9771 # used in CheckPrereq for ip ping check
9772 self.check_ip = self.hostname1.ip
9774 self.check_ip = None
9776 # file storage checks
9777 if (self.op.file_driver and
9778 not self.op.file_driver in constants.FILE_DRIVER):
9779 raise errors.OpPrereqError("Invalid file driver name '%s'" %
9780 self.op.file_driver, errors.ECODE_INVAL)
9782 if self.op.disk_template == constants.DT_FILE:
9783 opcodes.RequireFileStorage()
9784 elif self.op.disk_template == constants.DT_SHARED_FILE:
9785 opcodes.RequireSharedFileStorage()
9787 ### Node/iallocator related checks
9788 _CheckIAllocatorOrNode(self, "iallocator", "pnode")
9790 if self.op.pnode is not None:
9791 if self.op.disk_template in constants.DTS_INT_MIRROR:
9792 if self.op.snode is None:
9793 raise errors.OpPrereqError("The networked disk templates need"
9794 " a mirror node", errors.ECODE_INVAL)
9796 self.LogWarning("Secondary node will be ignored on non-mirrored disk"
9798 self.op.snode = None
9800 self._cds = _GetClusterDomainSecret()
9802 if self.op.mode == constants.INSTANCE_IMPORT:
9803 # On import force_variant must be True, because if we forced it at
9804 # initial install, our only chance when importing it back is that it
9806 self.op.force_variant = True
9808 if self.op.no_install:
9809 self.LogInfo("No-installation mode has no effect during import")
9811 elif self.op.mode == constants.INSTANCE_CREATE:
9812 if self.op.os_type is None:
9813 raise errors.OpPrereqError("No guest OS specified",
9815 if self.op.os_type in self.cfg.GetClusterInfo().blacklisted_os:
9816 raise errors.OpPrereqError("Guest OS '%s' is not allowed for"
9817 " installation" % self.op.os_type,
9819 if self.op.disk_template is None:
9820 raise errors.OpPrereqError("No disk template specified",
9823 elif self.op.mode == constants.INSTANCE_REMOTE_IMPORT:
9824 # Check handshake to ensure both clusters have the same domain secret
9825 src_handshake = self.op.source_handshake
9826 if not src_handshake:
9827 raise errors.OpPrereqError("Missing source handshake",
9830 errmsg = masterd.instance.CheckRemoteExportHandshake(self._cds,
9833 raise errors.OpPrereqError("Invalid handshake: %s" % errmsg,
9836 # Load and check source CA
9837 self.source_x509_ca_pem = self.op.source_x509_ca
9838 if not self.source_x509_ca_pem:
9839 raise errors.OpPrereqError("Missing source X509 CA",
9843 (cert, _) = utils.LoadSignedX509Certificate(self.source_x509_ca_pem,
9845 except OpenSSL.crypto.Error, err:
9846 raise errors.OpPrereqError("Unable to load source X509 CA (%s)" %
9847 (err, ), errors.ECODE_INVAL)
9849 (errcode, msg) = utils.VerifyX509Certificate(cert, None, None)
9850 if errcode is not None:
9851 raise errors.OpPrereqError("Invalid source X509 CA (%s)" % (msg, ),
9854 self.source_x509_ca = cert
9856 src_instance_name = self.op.source_instance_name
9857 if not src_instance_name:
9858 raise errors.OpPrereqError("Missing source instance name",
9861 self.source_instance_name = \
9862 netutils.GetHostname(name=src_instance_name).name
9865 raise errors.OpPrereqError("Invalid instance creation mode %r" %
9866 self.op.mode, errors.ECODE_INVAL)
9868 def ExpandNames(self):
9869 """ExpandNames for CreateInstance.
9871 Figure out the right locks for instance creation.
9874 self.needed_locks = {}
9876 instance_name = self.op.instance_name
9877 # this is just a preventive check, but someone might still add this
9878 # instance in the meantime, and creation will fail at lock-add time
9879 if instance_name in self.cfg.GetInstanceList():
9880 raise errors.OpPrereqError("Instance '%s' is already in the cluster" %
9881 instance_name, errors.ECODE_EXISTS)
9883 self.add_locks[locking.LEVEL_INSTANCE] = instance_name
9885 if self.op.iallocator:
9886 # TODO: Find a solution to not lock all nodes in the cluster, e.g. by
9887 # specifying a group on instance creation and then selecting nodes from
9889 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
9890 self.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET
9892 if self.op.opportunistic_locking:
9893 self.opportunistic_locks[locking.LEVEL_NODE] = True
9894 self.opportunistic_locks[locking.LEVEL_NODE_RES] = True
9896 self.op.pnode = _ExpandNodeName(self.cfg, self.op.pnode)
9897 nodelist = [self.op.pnode]
9898 if self.op.snode is not None:
9899 self.op.snode = _ExpandNodeName(self.cfg, self.op.snode)
9900 nodelist.append(self.op.snode)
9901 self.needed_locks[locking.LEVEL_NODE] = nodelist
9903 # in case of import lock the source node too
9904 if self.op.mode == constants.INSTANCE_IMPORT:
9905 src_node = self.op.src_node
9906 src_path = self.op.src_path
9908 if src_path is None:
9909 self.op.src_path = src_path = self.op.instance_name
9911 if src_node is None:
9912 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
9913 self.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET
9914 self.op.src_node = None
9915 if os.path.isabs(src_path):
9916 raise errors.OpPrereqError("Importing an instance from a path"
9917 " requires a source node option",
9920 self.op.src_node = src_node = _ExpandNodeName(self.cfg, src_node)
9921 if self.needed_locks[locking.LEVEL_NODE] is not locking.ALL_SET:
9922 self.needed_locks[locking.LEVEL_NODE].append(src_node)
9923 if not os.path.isabs(src_path):
9924 self.op.src_path = src_path = \
9925 utils.PathJoin(pathutils.EXPORT_DIR, src_path)
9927 self.needed_locks[locking.LEVEL_NODE_RES] = \
9928 _CopyLockList(self.needed_locks[locking.LEVEL_NODE])
9930 def _RunAllocator(self):
9931 """Run the allocator based on input opcode.
9934 if self.op.opportunistic_locking:
9935 # Only consider nodes for which a lock is held
9936 node_whitelist = self.owned_locks(locking.LEVEL_NODE)
9938 node_whitelist = None
9940 #TODO Export network to iallocator so that it chooses a pnode
9941 # in a nodegroup that has the desired network connected to
9942 req = _CreateInstanceAllocRequest(self.op, self.disks,
9943 self.nics, self.be_full,
9945 ial = iallocator.IAllocator(self.cfg, self.rpc, req)
9947 ial.Run(self.op.iallocator)
9950 # When opportunistic locks are used only a temporary failure is generated
9951 if self.op.opportunistic_locking:
9952 ecode = errors.ECODE_TEMP_NORES
9954 ecode = errors.ECODE_NORES
9956 raise errors.OpPrereqError("Can't compute nodes using"
9957 " iallocator '%s': %s" %
9958 (self.op.iallocator, ial.info),
9961 self.op.pnode = ial.result[0]
9962 self.LogInfo("Selected nodes for instance %s via iallocator %s: %s",
9963 self.op.instance_name, self.op.iallocator,
9964 utils.CommaJoin(ial.result))
9966 assert req.RequiredNodes() in (1, 2), "Wrong node count from iallocator"
9968 if req.RequiredNodes() == 2:
9969 self.op.snode = ial.result[1]
9971 def BuildHooksEnv(self):
9974 This runs on master, primary and secondary nodes of the instance.
9978 "ADD_MODE": self.op.mode,
9980 if self.op.mode == constants.INSTANCE_IMPORT:
9981 env["SRC_NODE"] = self.op.src_node
9982 env["SRC_PATH"] = self.op.src_path
9983 env["SRC_IMAGES"] = self.src_images
9985 env.update(_BuildInstanceHookEnv(
9986 name=self.op.instance_name,
9987 primary_node=self.op.pnode,
9988 secondary_nodes=self.secondaries,
9989 status=self.op.start,
9990 os_type=self.op.os_type,
9991 minmem=self.be_full[constants.BE_MINMEM],
9992 maxmem=self.be_full[constants.BE_MAXMEM],
9993 vcpus=self.be_full[constants.BE_VCPUS],
9994 nics=_NICListToTuple(self, self.nics),
9995 disk_template=self.op.disk_template,
9996 disks=[(d[constants.IDISK_SIZE], d[constants.IDISK_MODE])
9997 for d in self.disks],
10000 hypervisor_name=self.op.hypervisor,
10006 def BuildHooksNodes(self):
10007 """Build hooks nodes.
10010 nl = [self.cfg.GetMasterNode(), self.op.pnode] + self.secondaries
10013 def _ReadExportInfo(self):
10014 """Reads the export information from disk.
10016 It will override the opcode source node and path with the actual
10017 information, if these two were not specified before.
10019 @return: the export information
10022 assert self.op.mode == constants.INSTANCE_IMPORT
10024 src_node = self.op.src_node
10025 src_path = self.op.src_path
10027 if src_node is None:
10028 locked_nodes = self.owned_locks(locking.LEVEL_NODE)
10029 exp_list = self.rpc.call_export_list(locked_nodes)
10031 for node in exp_list:
10032 if exp_list[node].fail_msg:
10034 if src_path in exp_list[node].payload:
10036 self.op.src_node = src_node = node
10037 self.op.src_path = src_path = utils.PathJoin(pathutils.EXPORT_DIR,
10041 raise errors.OpPrereqError("No export found for relative path %s" %
10042 src_path, errors.ECODE_INVAL)
10044 _CheckNodeOnline(self, src_node)
10045 result = self.rpc.call_export_info(src_node, src_path)
10046 result.Raise("No export or invalid export found in dir %s" % src_path)
10048 export_info = objects.SerializableConfigParser.Loads(str(result.payload))
10049 if not export_info.has_section(constants.INISECT_EXP):
10050 raise errors.ProgrammerError("Corrupted export config",
10051 errors.ECODE_ENVIRON)
10053 ei_version = export_info.get(constants.INISECT_EXP, "version")
10054 if (int(ei_version) != constants.EXPORT_VERSION):
10055 raise errors.OpPrereqError("Wrong export version %s (wanted %d)" %
10056 (ei_version, constants.EXPORT_VERSION),
10057 errors.ECODE_ENVIRON)
10060 def _ReadExportParams(self, einfo):
10061 """Use export parameters as defaults.
10063 In case the opcode doesn't specify (as in override) some instance
10064 parameters, then try to use them from the export information, if
10065 that declares them.
10068 self.op.os_type = einfo.get(constants.INISECT_EXP, "os")
10070 if self.op.disk_template is None:
10071 if einfo.has_option(constants.INISECT_INS, "disk_template"):
10072 self.op.disk_template = einfo.get(constants.INISECT_INS,
10074 if self.op.disk_template not in constants.DISK_TEMPLATES:
10075 raise errors.OpPrereqError("Disk template specified in configuration"
10076 " file is not one of the allowed values:"
10078 " ".join(constants.DISK_TEMPLATES),
10079 errors.ECODE_INVAL)
10081 raise errors.OpPrereqError("No disk template specified and the export"
10082 " is missing the disk_template information",
10083 errors.ECODE_INVAL)
10085 if not self.op.disks:
10087 # TODO: import the disk iv_name too
10088 for idx in range(constants.MAX_DISKS):
10089 if einfo.has_option(constants.INISECT_INS, "disk%d_size" % idx):
10090 disk_sz = einfo.getint(constants.INISECT_INS, "disk%d_size" % idx)
10091 disks.append({constants.IDISK_SIZE: disk_sz})
10092 self.op.disks = disks
10093 if not disks and self.op.disk_template != constants.DT_DISKLESS:
10094 raise errors.OpPrereqError("No disk info specified and the export"
10095 " is missing the disk information",
10096 errors.ECODE_INVAL)
10098 if not self.op.nics:
10100 for idx in range(constants.MAX_NICS):
10101 if einfo.has_option(constants.INISECT_INS, "nic%d_mac" % idx):
10103 for name in list(constants.NICS_PARAMETERS) + ["ip", "mac"]:
10104 v = einfo.get(constants.INISECT_INS, "nic%d_%s" % (idx, name))
10109 self.op.nics = nics
10111 if not self.op.tags and einfo.has_option(constants.INISECT_INS, "tags"):
10112 self.op.tags = einfo.get(constants.INISECT_INS, "tags").split()
10114 if (self.op.hypervisor is None and
10115 einfo.has_option(constants.INISECT_INS, "hypervisor")):
10116 self.op.hypervisor = einfo.get(constants.INISECT_INS, "hypervisor")
10118 if einfo.has_section(constants.INISECT_HYP):
10119 # use the export parameters but do not override the ones
10120 # specified by the user
10121 for name, value in einfo.items(constants.INISECT_HYP):
10122 if name not in self.op.hvparams:
10123 self.op.hvparams[name] = value
10125 if einfo.has_section(constants.INISECT_BEP):
10126 # use the parameters, without overriding
10127 for name, value in einfo.items(constants.INISECT_BEP):
10128 if name not in self.op.beparams:
10129 self.op.beparams[name] = value
10130 # Compatibility for the old "memory" be param
10131 if name == constants.BE_MEMORY:
10132 if constants.BE_MAXMEM not in self.op.beparams:
10133 self.op.beparams[constants.BE_MAXMEM] = value
10134 if constants.BE_MINMEM not in self.op.beparams:
10135 self.op.beparams[constants.BE_MINMEM] = value
10137 # try to read the parameters old style, from the main section
10138 for name in constants.BES_PARAMETERS:
10139 if (name not in self.op.beparams and
10140 einfo.has_option(constants.INISECT_INS, name)):
10141 self.op.beparams[name] = einfo.get(constants.INISECT_INS, name)
10143 if einfo.has_section(constants.INISECT_OSP):
10144 # use the parameters, without overriding
10145 for name, value in einfo.items(constants.INISECT_OSP):
10146 if name not in self.op.osparams:
10147 self.op.osparams[name] = value
10149 def _RevertToDefaults(self, cluster):
10150 """Revert the instance parameters to the default values.
10154 hv_defs = cluster.SimpleFillHV(self.op.hypervisor, self.op.os_type, {})
10155 for name in self.op.hvparams.keys():
10156 if name in hv_defs and hv_defs[name] == self.op.hvparams[name]:
10157 del self.op.hvparams[name]
10159 be_defs = cluster.SimpleFillBE({})
10160 for name in self.op.beparams.keys():
10161 if name in be_defs and be_defs[name] == self.op.beparams[name]:
10162 del self.op.beparams[name]
10164 nic_defs = cluster.SimpleFillNIC({})
10165 for nic in self.op.nics:
10166 for name in constants.NICS_PARAMETERS:
10167 if name in nic and name in nic_defs and nic[name] == nic_defs[name]:
10170 os_defs = cluster.SimpleFillOS(self.op.os_type, {})
10171 for name in self.op.osparams.keys():
10172 if name in os_defs and os_defs[name] == self.op.osparams[name]:
10173 del self.op.osparams[name]
10175 def _CalculateFileStorageDir(self):
10176 """Calculate final instance file storage dir.
10179 # file storage dir calculation/check
10180 self.instance_file_storage_dir = None
10181 if self.op.disk_template in constants.DTS_FILEBASED:
10182 # build the full file storage dir path
10185 if self.op.disk_template == constants.DT_SHARED_FILE:
10186 get_fsd_fn = self.cfg.GetSharedFileStorageDir
10188 get_fsd_fn = self.cfg.GetFileStorageDir
10190 cfg_storagedir = get_fsd_fn()
10191 if not cfg_storagedir:
10192 raise errors.OpPrereqError("Cluster file storage dir not defined",
10193 errors.ECODE_STATE)
10194 joinargs.append(cfg_storagedir)
10196 if self.op.file_storage_dir is not None:
10197 joinargs.append(self.op.file_storage_dir)
10199 joinargs.append(self.op.instance_name)
10201 # pylint: disable=W0142
10202 self.instance_file_storage_dir = utils.PathJoin(*joinargs)
10204 def CheckPrereq(self): # pylint: disable=R0914
10205 """Check prerequisites.
10208 self._CalculateFileStorageDir()
10210 if self.op.mode == constants.INSTANCE_IMPORT:
10211 export_info = self._ReadExportInfo()
10212 self._ReadExportParams(export_info)
10213 self._old_instance_name = export_info.get(constants.INISECT_INS, "name")
10215 self._old_instance_name = None
10217 if (not self.cfg.GetVGName() and
10218 self.op.disk_template not in constants.DTS_NOT_LVM):
10219 raise errors.OpPrereqError("Cluster does not support lvm-based"
10220 " instances", errors.ECODE_STATE)
10222 if (self.op.hypervisor is None or
10223 self.op.hypervisor == constants.VALUE_AUTO):
10224 self.op.hypervisor = self.cfg.GetHypervisorType()
10226 cluster = self.cfg.GetClusterInfo()
10227 enabled_hvs = cluster.enabled_hypervisors
10228 if self.op.hypervisor not in enabled_hvs:
10229 raise errors.OpPrereqError("Selected hypervisor (%s) not enabled in the"
10231 (self.op.hypervisor, ",".join(enabled_hvs)),
10232 errors.ECODE_STATE)
10234 # Check tag validity
10235 for tag in self.op.tags:
10236 objects.TaggableObject.ValidateTag(tag)
10238 # check hypervisor parameter syntax (locally)
10239 utils.ForceDictType(self.op.hvparams, constants.HVS_PARAMETER_TYPES)
10240 filled_hvp = cluster.SimpleFillHV(self.op.hypervisor, self.op.os_type,
10242 hv_type = hypervisor.GetHypervisor(self.op.hypervisor)
10243 hv_type.CheckParameterSyntax(filled_hvp)
10244 self.hv_full = filled_hvp
10245 # check that we don't specify global parameters on an instance
10246 _CheckGlobalHvParams(self.op.hvparams)
10248 # fill and remember the beparams dict
10249 self.be_full = _ComputeFullBeParams(self.op, cluster)
10251 # build os parameters
10252 self.os_full = cluster.SimpleFillOS(self.op.os_type, self.op.osparams)
10254 # now that hvp/bep are in final format, let's reset to defaults,
10256 if self.op.identify_defaults:
10257 self._RevertToDefaults(cluster)
10260 self.nics = _ComputeNics(self.op, cluster, self.check_ip, self.cfg,
10261 self.proc.GetECId())
10263 # disk checks/pre-build
10264 default_vg = self.cfg.GetVGName()
10265 self.disks = _ComputeDisks(self.op, default_vg)
10267 if self.op.mode == constants.INSTANCE_IMPORT:
10269 for idx in range(len(self.disks)):
10270 option = "disk%d_dump" % idx
10271 if export_info.has_option(constants.INISECT_INS, option):
10272 # FIXME: are the old os-es, disk sizes, etc. useful?
10273 export_name = export_info.get(constants.INISECT_INS, option)
10274 image = utils.PathJoin(self.op.src_path, export_name)
10275 disk_images.append(image)
10277 disk_images.append(False)
10279 self.src_images = disk_images
10281 if self.op.instance_name == self._old_instance_name:
10282 for idx, nic in enumerate(self.nics):
10283 if nic.mac == constants.VALUE_AUTO:
10284 nic_mac_ini = "nic%d_mac" % idx
10285 nic.mac = export_info.get(constants.INISECT_INS, nic_mac_ini)
10287 # ENDIF: self.op.mode == constants.INSTANCE_IMPORT
10289 # ip ping checks (we use the same ip that was resolved in ExpandNames)
10290 if self.op.ip_check:
10291 if netutils.TcpPing(self.check_ip, constants.DEFAULT_NODED_PORT):
10292 raise errors.OpPrereqError("IP %s of instance %s already in use" %
10293 (self.check_ip, self.op.instance_name),
10294 errors.ECODE_NOTUNIQUE)
10296 #### mac address generation
10297 # By generating here the mac address both the allocator and the hooks get
10298 # the real final mac address rather than the 'auto' or 'generate' value.
10299 # There is a race condition between the generation and the instance object
10300 # creation, which means that we know the mac is valid now, but we're not
10301 # sure it will be when we actually add the instance. If things go bad
10302 # adding the instance will abort because of a duplicate mac, and the
10303 # creation job will fail.
10304 for nic in self.nics:
10305 if nic.mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
10306 nic.mac = self.cfg.GenerateMAC(nic.network, self.proc.GetECId())
10310 if self.op.iallocator is not None:
10311 self._RunAllocator()
10313 # Release all unneeded node locks
10314 keep_locks = filter(None, [self.op.pnode, self.op.snode, self.op.src_node])
10315 _ReleaseLocks(self, locking.LEVEL_NODE, keep=keep_locks)
10316 _ReleaseLocks(self, locking.LEVEL_NODE_RES, keep=keep_locks)
10317 _ReleaseLocks(self, locking.LEVEL_NODE_ALLOC)
10319 assert (self.owned_locks(locking.LEVEL_NODE) ==
10320 self.owned_locks(locking.LEVEL_NODE_RES)), \
10321 "Node locks differ from node resource locks"
10323 #### node related checks
10325 # check primary node
10326 self.pnode = pnode = self.cfg.GetNodeInfo(self.op.pnode)
10327 assert self.pnode is not None, \
10328 "Cannot retrieve locked node %s" % self.op.pnode
10330 raise errors.OpPrereqError("Cannot use offline primary node '%s'" %
10331 pnode.name, errors.ECODE_STATE)
10333 raise errors.OpPrereqError("Cannot use drained primary node '%s'" %
10334 pnode.name, errors.ECODE_STATE)
10335 if not pnode.vm_capable:
10336 raise errors.OpPrereqError("Cannot use non-vm_capable primary node"
10337 " '%s'" % pnode.name, errors.ECODE_STATE)
10339 self.secondaries = []
10341 # Fill in any IPs from IP pools. This must happen here, because we need to
10342 # know the nic's primary node, as specified by the iallocator
10343 for idx, nic in enumerate(self.nics):
10345 if net is not None:
10346 netparams = self.cfg.GetGroupNetParams(net, self.pnode.name)
10347 if netparams is None:
10348 raise errors.OpPrereqError("No netparams found for network"
10349 " %s. Propably not connected to"
10350 " node's %s nodegroup" %
10351 (net, self.pnode.name),
10352 errors.ECODE_INVAL)
10353 self.LogInfo("NIC/%d inherits netparams %s" %
10354 (idx, netparams.values()))
10355 nic.nicparams = dict(netparams)
10356 if nic.ip is not None:
10357 if nic.ip.lower() == constants.NIC_IP_POOL:
10359 nic.ip = self.cfg.GenerateIp(net, self.proc.GetECId())
10360 except errors.ReservationError:
10361 raise errors.OpPrereqError("Unable to get a free IP for NIC %d"
10362 " from the address pool" % idx,
10363 errors.ECODE_STATE)
10364 self.LogInfo("Chose IP %s from network %s", nic.ip, net)
10367 self.cfg.ReserveIp(net, nic.ip, self.proc.GetECId())
10368 except errors.ReservationError:
10369 raise errors.OpPrereqError("IP address %s already in use"
10370 " or does not belong to network %s" %
10372 errors.ECODE_NOTUNIQUE)
10374 # net is None, ip None or given
10375 if self.op.conflicts_check:
10376 _CheckForConflictingIp(self, nic.ip, self.pnode.name)
10378 # mirror node verification
10379 if self.op.disk_template in constants.DTS_INT_MIRROR:
10380 if self.op.snode == pnode.name:
10381 raise errors.OpPrereqError("The secondary node cannot be the"
10382 " primary node", errors.ECODE_INVAL)
10383 _CheckNodeOnline(self, self.op.snode)
10384 _CheckNodeNotDrained(self, self.op.snode)
10385 _CheckNodeVmCapable(self, self.op.snode)
10386 self.secondaries.append(self.op.snode)
10388 snode = self.cfg.GetNodeInfo(self.op.snode)
10389 if pnode.group != snode.group:
10390 self.LogWarning("The primary and secondary nodes are in two"
10391 " different node groups; the disk parameters"
10392 " from the first disk's node group will be"
10395 nodenames = [pnode.name] + self.secondaries
10397 # Verify instance specs
10398 spindle_use = self.be_full.get(constants.BE_SPINDLE_USE, None)
10400 constants.ISPEC_MEM_SIZE: self.be_full.get(constants.BE_MAXMEM, None),
10401 constants.ISPEC_CPU_COUNT: self.be_full.get(constants.BE_VCPUS, None),
10402 constants.ISPEC_DISK_COUNT: len(self.disks),
10403 constants.ISPEC_DISK_SIZE: [disk["size"] for disk in self.disks],
10404 constants.ISPEC_NIC_COUNT: len(self.nics),
10405 constants.ISPEC_SPINDLE_USE: spindle_use,
10408 group_info = self.cfg.GetNodeGroup(pnode.group)
10409 ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster, group_info)
10410 res = _ComputeIPolicyInstanceSpecViolation(ipolicy, ispec)
10411 if not self.op.ignore_ipolicy and res:
10412 msg = ("Instance allocation to group %s (%s) violates policy: %s" %
10413 (pnode.group, group_info.name, utils.CommaJoin(res)))
10414 raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
10416 if not self.adopt_disks:
10417 if self.op.disk_template == constants.DT_RBD:
10418 # _CheckRADOSFreeSpace() is just a placeholder.
10419 # Any function that checks prerequisites can be placed here.
10420 # Check if there is enough space on the RADOS cluster.
10421 _CheckRADOSFreeSpace()
10423 # Check lv size requirements, if not adopting
10424 req_sizes = _ComputeDiskSizePerVG(self.op.disk_template, self.disks)
10425 _CheckNodesFreeDiskPerVG(self, nodenames, req_sizes)
10427 elif self.op.disk_template == constants.DT_PLAIN: # Check the adoption data
10428 all_lvs = set(["%s/%s" % (disk[constants.IDISK_VG],
10429 disk[constants.IDISK_ADOPT])
10430 for disk in self.disks])
10431 if len(all_lvs) != len(self.disks):
10432 raise errors.OpPrereqError("Duplicate volume names given for adoption",
10433 errors.ECODE_INVAL)
10434 for lv_name in all_lvs:
10436 # FIXME: lv_name here is "vg/lv" need to ensure that other calls
10437 # to ReserveLV uses the same syntax
10438 self.cfg.ReserveLV(lv_name, self.proc.GetECId())
10439 except errors.ReservationError:
10440 raise errors.OpPrereqError("LV named %s used by another instance" %
10441 lv_name, errors.ECODE_NOTUNIQUE)
10443 vg_names = self.rpc.call_vg_list([pnode.name])[pnode.name]
10444 vg_names.Raise("Cannot get VG information from node %s" % pnode.name)
10446 node_lvs = self.rpc.call_lv_list([pnode.name],
10447 vg_names.payload.keys())[pnode.name]
10448 node_lvs.Raise("Cannot get LV information from node %s" % pnode.name)
10449 node_lvs = node_lvs.payload
10451 delta = all_lvs.difference(node_lvs.keys())
10453 raise errors.OpPrereqError("Missing logical volume(s): %s" %
10454 utils.CommaJoin(delta),
10455 errors.ECODE_INVAL)
10456 online_lvs = [lv for lv in all_lvs if node_lvs[lv][2]]
10458 raise errors.OpPrereqError("Online logical volumes found, cannot"
10459 " adopt: %s" % utils.CommaJoin(online_lvs),
10460 errors.ECODE_STATE)
10461 # update the size of disk based on what is found
10462 for dsk in self.disks:
10463 dsk[constants.IDISK_SIZE] = \
10464 int(float(node_lvs["%s/%s" % (dsk[constants.IDISK_VG],
10465 dsk[constants.IDISK_ADOPT])][0]))
10467 elif self.op.disk_template == constants.DT_BLOCK:
10468 # Normalize and de-duplicate device paths
10469 all_disks = set([os.path.abspath(disk[constants.IDISK_ADOPT])
10470 for disk in self.disks])
10471 if len(all_disks) != len(self.disks):
10472 raise errors.OpPrereqError("Duplicate disk names given for adoption",
10473 errors.ECODE_INVAL)
10474 baddisks = [d for d in all_disks
10475 if not d.startswith(constants.ADOPTABLE_BLOCKDEV_ROOT)]
10477 raise errors.OpPrereqError("Device node(s) %s lie outside %s and"
10478 " cannot be adopted" %
10479 (utils.CommaJoin(baddisks),
10480 constants.ADOPTABLE_BLOCKDEV_ROOT),
10481 errors.ECODE_INVAL)
10483 node_disks = self.rpc.call_bdev_sizes([pnode.name],
10484 list(all_disks))[pnode.name]
10485 node_disks.Raise("Cannot get block device information from node %s" %
10487 node_disks = node_disks.payload
10488 delta = all_disks.difference(node_disks.keys())
10490 raise errors.OpPrereqError("Missing block device(s): %s" %
10491 utils.CommaJoin(delta),
10492 errors.ECODE_INVAL)
10493 for dsk in self.disks:
10494 dsk[constants.IDISK_SIZE] = \
10495 int(float(node_disks[dsk[constants.IDISK_ADOPT]]))
10497 # Verify instance specs
10498 spindle_use = self.be_full.get(constants.BE_SPINDLE_USE, None)
10500 constants.ISPEC_MEM_SIZE: self.be_full.get(constants.BE_MAXMEM, None),
10501 constants.ISPEC_CPU_COUNT: self.be_full.get(constants.BE_VCPUS, None),
10502 constants.ISPEC_DISK_COUNT: len(self.disks),
10503 constants.ISPEC_DISK_SIZE: [disk[constants.IDISK_SIZE]
10504 for disk in self.disks],
10505 constants.ISPEC_NIC_COUNT: len(self.nics),
10506 constants.ISPEC_SPINDLE_USE: spindle_use,
10509 group_info = self.cfg.GetNodeGroup(pnode.group)
10510 ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster, group_info)
10511 res = _ComputeIPolicyInstanceSpecViolation(ipolicy, ispec)
10512 if not self.op.ignore_ipolicy and res:
10513 raise errors.OpPrereqError(("Instance allocation to group %s violates"
10514 " policy: %s") % (pnode.group,
10515 utils.CommaJoin(res)),
10516 errors.ECODE_INVAL)
10518 _CheckHVParams(self, nodenames, self.op.hypervisor, self.op.hvparams)
10520 _CheckNodeHasOS(self, pnode.name, self.op.os_type, self.op.force_variant)
10521 # check OS parameters (remotely)
10522 _CheckOSParams(self, True, nodenames, self.op.os_type, self.os_full)
10524 _CheckNicsBridgesExist(self, self.nics, self.pnode.name)
10526 # memory check on primary node
10527 #TODO(dynmem): use MINMEM for checking
10529 _CheckNodeFreeMemory(self, self.pnode.name,
10530 "creating instance %s" % self.op.instance_name,
10531 self.be_full[constants.BE_MAXMEM],
10532 self.op.hypervisor)
10534 self.dry_run_result = list(nodenames)
10536 def Exec(self, feedback_fn):
10537 """Create and add the instance to the cluster.
10540 instance = self.op.instance_name
10541 pnode_name = self.pnode.name
10543 assert not (self.owned_locks(locking.LEVEL_NODE_RES) -
10544 self.owned_locks(locking.LEVEL_NODE)), \
10545 "Node locks differ from node resource locks"
10546 assert not self.glm.is_owned(locking.LEVEL_NODE_ALLOC)
10548 ht_kind = self.op.hypervisor
10549 if ht_kind in constants.HTS_REQ_PORT:
10550 network_port = self.cfg.AllocatePort()
10552 network_port = None
10554 # This is ugly but we got a chicken-egg problem here
10555 # We can only take the group disk parameters, as the instance
10556 # has no disks yet (we are generating them right here).
10557 node = self.cfg.GetNodeInfo(pnode_name)
10558 nodegroup = self.cfg.GetNodeGroup(node.group)
10559 disks = _GenerateDiskTemplate(self,
10560 self.op.disk_template,
10561 instance, pnode_name,
10564 self.instance_file_storage_dir,
10565 self.op.file_driver,
10568 self.cfg.GetGroupDiskParams(nodegroup))
10570 iobj = objects.Instance(name=instance, os=self.op.os_type,
10571 primary_node=pnode_name,
10572 nics=self.nics, disks=disks,
10573 disk_template=self.op.disk_template,
10574 admin_state=constants.ADMINST_DOWN,
10575 network_port=network_port,
10576 beparams=self.op.beparams,
10577 hvparams=self.op.hvparams,
10578 hypervisor=self.op.hypervisor,
10579 osparams=self.op.osparams,
10583 for tag in self.op.tags:
10586 if self.adopt_disks:
10587 if self.op.disk_template == constants.DT_PLAIN:
10588 # rename LVs to the newly-generated names; we need to construct
10589 # 'fake' LV disks with the old data, plus the new unique_id
10590 tmp_disks = [objects.Disk.FromDict(v.ToDict()) for v in disks]
10592 for t_dsk, a_dsk in zip(tmp_disks, self.disks):
10593 rename_to.append(t_dsk.logical_id)
10594 t_dsk.logical_id = (t_dsk.logical_id[0], a_dsk[constants.IDISK_ADOPT])
10595 self.cfg.SetDiskID(t_dsk, pnode_name)
10596 result = self.rpc.call_blockdev_rename(pnode_name,
10597 zip(tmp_disks, rename_to))
10598 result.Raise("Failed to rename adoped LVs")
10600 feedback_fn("* creating instance disks...")
10602 _CreateDisks(self, iobj)
10603 except errors.OpExecError:
10604 self.LogWarning("Device creation failed, reverting...")
10606 _RemoveDisks(self, iobj)
10608 self.cfg.ReleaseDRBDMinors(instance)
10611 feedback_fn("adding instance %s to cluster config" % instance)
10613 self.cfg.AddInstance(iobj, self.proc.GetECId())
10615 # Declare that we don't want to remove the instance lock anymore, as we've
10616 # added the instance to the config
10617 del self.remove_locks[locking.LEVEL_INSTANCE]
10619 if self.op.mode == constants.INSTANCE_IMPORT:
10620 # Release unused nodes
10621 _ReleaseLocks(self, locking.LEVEL_NODE, keep=[self.op.src_node])
10623 # Release all nodes
10624 _ReleaseLocks(self, locking.LEVEL_NODE)
10627 if not self.adopt_disks and self.cfg.GetClusterInfo().prealloc_wipe_disks:
10628 feedback_fn("* wiping instance disks...")
10630 _WipeDisks(self, iobj)
10631 except errors.OpExecError, err:
10632 logging.exception("Wiping disks failed")
10633 self.LogWarning("Wiping instance disks failed (%s)", err)
10637 # Something is already wrong with the disks, don't do anything else
10639 elif self.op.wait_for_sync:
10640 disk_abort = not _WaitForSync(self, iobj)
10641 elif iobj.disk_template in constants.DTS_INT_MIRROR:
10642 # make sure the disks are not degraded (still sync-ing is ok)
10643 feedback_fn("* checking mirrors status")
10644 disk_abort = not _WaitForSync(self, iobj, oneshot=True)
10649 _RemoveDisks(self, iobj)
10650 self.cfg.RemoveInstance(iobj.name)
10651 # Make sure the instance lock gets removed
10652 self.remove_locks[locking.LEVEL_INSTANCE] = iobj.name
10653 raise errors.OpExecError("There are some degraded disks for"
10656 # Release all node resource locks
10657 _ReleaseLocks(self, locking.LEVEL_NODE_RES)
10659 if iobj.disk_template != constants.DT_DISKLESS and not self.adopt_disks:
10660 # we need to set the disks ID to the primary node, since the
10661 # preceding code might or might have not done it, depending on
10662 # disk template and other options
10663 for disk in iobj.disks:
10664 self.cfg.SetDiskID(disk, pnode_name)
10665 if self.op.mode == constants.INSTANCE_CREATE:
10666 if not self.op.no_install:
10667 pause_sync = (iobj.disk_template in constants.DTS_INT_MIRROR and
10668 not self.op.wait_for_sync)
10670 feedback_fn("* pausing disk sync to install instance OS")
10671 result = self.rpc.call_blockdev_pause_resume_sync(pnode_name,
10674 for idx, success in enumerate(result.payload):
10676 logging.warn("pause-sync of instance %s for disk %d failed",
10679 feedback_fn("* running the instance OS create scripts...")
10680 # FIXME: pass debug option from opcode to backend
10682 self.rpc.call_instance_os_add(pnode_name, (iobj, None), False,
10683 self.op.debug_level)
10685 feedback_fn("* resuming disk sync")
10686 result = self.rpc.call_blockdev_pause_resume_sync(pnode_name,
10689 for idx, success in enumerate(result.payload):
10691 logging.warn("resume-sync of instance %s for disk %d failed",
10694 os_add_result.Raise("Could not add os for instance %s"
10695 " on node %s" % (instance, pnode_name))
10698 if self.op.mode == constants.INSTANCE_IMPORT:
10699 feedback_fn("* running the instance OS import scripts...")
10703 for idx, image in enumerate(self.src_images):
10707 # FIXME: pass debug option from opcode to backend
10708 dt = masterd.instance.DiskTransfer("disk/%s" % idx,
10709 constants.IEIO_FILE, (image, ),
10710 constants.IEIO_SCRIPT,
10711 (iobj.disks[idx], idx),
10713 transfers.append(dt)
10716 masterd.instance.TransferInstanceData(self, feedback_fn,
10717 self.op.src_node, pnode_name,
10718 self.pnode.secondary_ip,
10720 if not compat.all(import_result):
10721 self.LogWarning("Some disks for instance %s on node %s were not"
10722 " imported successfully" % (instance, pnode_name))
10724 rename_from = self._old_instance_name
10726 elif self.op.mode == constants.INSTANCE_REMOTE_IMPORT:
10727 feedback_fn("* preparing remote import...")
10728 # The source cluster will stop the instance before attempting to make
10729 # a connection. In some cases stopping an instance can take a long
10730 # time, hence the shutdown timeout is added to the connection
10732 connect_timeout = (constants.RIE_CONNECT_TIMEOUT +
10733 self.op.source_shutdown_timeout)
10734 timeouts = masterd.instance.ImportExportTimeouts(connect_timeout)
10736 assert iobj.primary_node == self.pnode.name
10738 masterd.instance.RemoteImport(self, feedback_fn, iobj, self.pnode,
10739 self.source_x509_ca,
10740 self._cds, timeouts)
10741 if not compat.all(disk_results):
10742 # TODO: Should the instance still be started, even if some disks
10743 # failed to import (valid for local imports, too)?
10744 self.LogWarning("Some disks for instance %s on node %s were not"
10745 " imported successfully" % (instance, pnode_name))
10747 rename_from = self.source_instance_name
10750 # also checked in the prereq part
10751 raise errors.ProgrammerError("Unknown OS initialization mode '%s'"
10754 # Run rename script on newly imported instance
10755 assert iobj.name == instance
10756 feedback_fn("Running rename script for %s" % instance)
10757 result = self.rpc.call_instance_run_rename(pnode_name, iobj,
10759 self.op.debug_level)
10760 if result.fail_msg:
10761 self.LogWarning("Failed to run rename script for %s on node"
10762 " %s: %s" % (instance, pnode_name, result.fail_msg))
10764 assert not self.owned_locks(locking.LEVEL_NODE_RES)
10767 iobj.admin_state = constants.ADMINST_UP
10768 self.cfg.Update(iobj, feedback_fn)
10769 logging.info("Starting instance %s on node %s", instance, pnode_name)
10770 feedback_fn("* starting instance...")
10771 result = self.rpc.call_instance_start(pnode_name, (iobj, None, None),
10773 result.Raise("Could not start instance")
10775 return list(iobj.all_nodes)
10778 class LUInstanceMultiAlloc(NoHooksLU):
10779 """Allocates multiple instances at the same time.
10784 def CheckArguments(self):
10785 """Check arguments.
10789 for inst in self.op.instances:
10790 if inst.iallocator is not None:
10791 raise errors.OpPrereqError("iallocator are not allowed to be set on"
10792 " instance objects", errors.ECODE_INVAL)
10793 nodes.append(bool(inst.pnode))
10794 if inst.disk_template in constants.DTS_INT_MIRROR:
10795 nodes.append(bool(inst.snode))
10797 has_nodes = compat.any(nodes)
10798 if compat.all(nodes) ^ has_nodes:
10799 raise errors.OpPrereqError("There are instance objects providing"
10800 " pnode/snode while others do not",
10801 errors.ECODE_INVAL)
10803 if self.op.iallocator is None:
10804 default_iallocator = self.cfg.GetDefaultIAllocator()
10805 if default_iallocator and has_nodes:
10806 self.op.iallocator = default_iallocator
10808 raise errors.OpPrereqError("No iallocator or nodes on the instances"
10809 " given and no cluster-wide default"
10810 " iallocator found; please specify either"
10811 " an iallocator or nodes on the instances"
10812 " or set a cluster-wide default iallocator",
10813 errors.ECODE_INVAL)
10815 dups = utils.FindDuplicates([op.instance_name for op in self.op.instances])
10817 raise errors.OpPrereqError("There are duplicate instance names: %s" %
10818 utils.CommaJoin(dups), errors.ECODE_INVAL)
10820 def ExpandNames(self):
10821 """Calculate the locks.
10824 self.share_locks = _ShareAll()
10825 self.needed_locks = {
10826 # iallocator will select nodes and even if no iallocator is used,
10827 # collisions with LUInstanceCreate should be avoided
10828 locking.LEVEL_NODE_ALLOC: locking.ALL_SET,
10831 if self.op.iallocator:
10832 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
10833 self.needed_locks[locking.LEVEL_NODE_RES] = locking.ALL_SET
10835 if self.op.opportunistic_locking:
10836 self.opportunistic_locks[locking.LEVEL_NODE] = True
10837 self.opportunistic_locks[locking.LEVEL_NODE_RES] = True
10840 for inst in self.op.instances:
10841 inst.pnode = _ExpandNodeName(self.cfg, inst.pnode)
10842 nodeslist.append(inst.pnode)
10843 if inst.snode is not None:
10844 inst.snode = _ExpandNodeName(self.cfg, inst.snode)
10845 nodeslist.append(inst.snode)
10847 self.needed_locks[locking.LEVEL_NODE] = nodeslist
10848 # Lock resources of instance's primary and secondary nodes (copy to
10849 # prevent accidential modification)
10850 self.needed_locks[locking.LEVEL_NODE_RES] = list(nodeslist)
10852 def CheckPrereq(self):
10853 """Check prerequisite.
10856 cluster = self.cfg.GetClusterInfo()
10857 default_vg = self.cfg.GetVGName()
10858 ec_id = self.proc.GetECId()
10860 if self.op.opportunistic_locking:
10861 # Only consider nodes for which a lock is held
10862 node_whitelist = self.owned_locks(locking.LEVEL_NODE)
10864 node_whitelist = None
10866 insts = [_CreateInstanceAllocRequest(op, _ComputeDisks(op, default_vg),
10867 _ComputeNics(op, cluster, None,
10869 _ComputeFullBeParams(op, cluster),
10871 for op in self.op.instances]
10873 req = iallocator.IAReqMultiInstanceAlloc(instances=insts)
10874 ial = iallocator.IAllocator(self.cfg, self.rpc, req)
10876 ial.Run(self.op.iallocator)
10878 if not ial.success:
10879 raise errors.OpPrereqError("Can't compute nodes using"
10880 " iallocator '%s': %s" %
10881 (self.op.iallocator, ial.info),
10882 errors.ECODE_NORES)
10884 self.ia_result = ial.result
10886 if self.op.dry_run:
10887 self.dry_run_result = objects.FillDict(self._ConstructPartialResult(), {
10888 constants.JOB_IDS_KEY: [],
10891 def _ConstructPartialResult(self):
10892 """Contructs the partial result.
10895 (allocatable, failed) = self.ia_result
10897 opcodes.OpInstanceMultiAlloc.ALLOCATABLE_KEY:
10898 map(compat.fst, allocatable),
10899 opcodes.OpInstanceMultiAlloc.FAILED_KEY: failed,
10902 def Exec(self, feedback_fn):
10903 """Executes the opcode.
10906 op2inst = dict((op.instance_name, op) for op in self.op.instances)
10907 (allocatable, failed) = self.ia_result
10910 for (name, nodes) in allocatable:
10911 op = op2inst.pop(name)
10914 (op.pnode, op.snode) = nodes
10916 (op.pnode,) = nodes
10920 missing = set(op2inst.keys()) - set(failed)
10921 assert not missing, \
10922 "Iallocator did return incomplete result: %s" % utils.CommaJoin(missing)
10924 return ResultWithJobs(jobs, **self._ConstructPartialResult())
10927 def _CheckRADOSFreeSpace():
10928 """Compute disk size requirements inside the RADOS cluster.
10931 # For the RADOS cluster we assume there is always enough space.
10935 class LUInstanceConsole(NoHooksLU):
10936 """Connect to an instance's console.
10938 This is somewhat special in that it returns the command line that
10939 you need to run on the master node in order to connect to the
10945 def ExpandNames(self):
10946 self.share_locks = _ShareAll()
10947 self._ExpandAndLockInstance()
10949 def CheckPrereq(self):
10950 """Check prerequisites.
10952 This checks that the instance is in the cluster.
10955 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
10956 assert self.instance is not None, \
10957 "Cannot retrieve locked instance %s" % self.op.instance_name
10958 _CheckNodeOnline(self, self.instance.primary_node)
10960 def Exec(self, feedback_fn):
10961 """Connect to the console of an instance
10964 instance = self.instance
10965 node = instance.primary_node
10967 node_insts = self.rpc.call_instance_list([node],
10968 [instance.hypervisor])[node]
10969 node_insts.Raise("Can't get node information from %s" % node)
10971 if instance.name not in node_insts.payload:
10972 if instance.admin_state == constants.ADMINST_UP:
10973 state = constants.INSTST_ERRORDOWN
10974 elif instance.admin_state == constants.ADMINST_DOWN:
10975 state = constants.INSTST_ADMINDOWN
10977 state = constants.INSTST_ADMINOFFLINE
10978 raise errors.OpExecError("Instance %s is not running (state %s)" %
10979 (instance.name, state))
10981 logging.debug("Connecting to console of %s on %s", instance.name, node)
10983 return _GetInstanceConsole(self.cfg.GetClusterInfo(), instance)
10986 def _GetInstanceConsole(cluster, instance):
10987 """Returns console information for an instance.
10989 @type cluster: L{objects.Cluster}
10990 @type instance: L{objects.Instance}
10994 hyper = hypervisor.GetHypervisor(instance.hypervisor)
10995 # beparams and hvparams are passed separately, to avoid editing the
10996 # instance and then saving the defaults in the instance itself.
10997 hvparams = cluster.FillHV(instance)
10998 beparams = cluster.FillBE(instance)
10999 console = hyper.GetInstanceConsole(instance, hvparams, beparams)
11001 assert console.instance == instance.name
11002 assert console.Validate()
11004 return console.ToDict()
11007 class LUInstanceReplaceDisks(LogicalUnit):
11008 """Replace the disks of an instance.
11011 HPATH = "mirrors-replace"
11012 HTYPE = constants.HTYPE_INSTANCE
11015 def CheckArguments(self):
11016 """Check arguments.
11019 remote_node = self.op.remote_node
11020 ialloc = self.op.iallocator
11021 if self.op.mode == constants.REPLACE_DISK_CHG:
11022 if remote_node is None and ialloc is None:
11023 raise errors.OpPrereqError("When changing the secondary either an"
11024 " iallocator script must be used or the"
11025 " new node given", errors.ECODE_INVAL)
11027 _CheckIAllocatorOrNode(self, "iallocator", "remote_node")
11029 elif remote_node is not None or ialloc is not None:
11030 # Not replacing the secondary
11031 raise errors.OpPrereqError("The iallocator and new node options can"
11032 " only be used when changing the"
11033 " secondary node", errors.ECODE_INVAL)
11035 def ExpandNames(self):
11036 self._ExpandAndLockInstance()
11038 assert locking.LEVEL_NODE not in self.needed_locks
11039 assert locking.LEVEL_NODE_RES not in self.needed_locks
11040 assert locking.LEVEL_NODEGROUP not in self.needed_locks
11042 assert self.op.iallocator is None or self.op.remote_node is None, \
11043 "Conflicting options"
11045 if self.op.remote_node is not None:
11046 self.op.remote_node = _ExpandNodeName(self.cfg, self.op.remote_node)
11048 # Warning: do not remove the locking of the new secondary here
11049 # unless DRBD8.AddChildren is changed to work in parallel;
11050 # currently it doesn't since parallel invocations of
11051 # FindUnusedMinor will conflict
11052 self.needed_locks[locking.LEVEL_NODE] = [self.op.remote_node]
11053 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
11055 self.needed_locks[locking.LEVEL_NODE] = []
11056 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
11058 if self.op.iallocator is not None:
11059 # iallocator will select a new node in the same group
11060 self.needed_locks[locking.LEVEL_NODEGROUP] = []
11061 self.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET
11063 self.needed_locks[locking.LEVEL_NODE_RES] = []
11065 self.replacer = TLReplaceDisks(self, self.op.instance_name, self.op.mode,
11066 self.op.iallocator, self.op.remote_node,
11067 self.op.disks, self.op.early_release,
11068 self.op.ignore_ipolicy)
11070 self.tasklets = [self.replacer]
11072 def DeclareLocks(self, level):
11073 if level == locking.LEVEL_NODEGROUP:
11074 assert self.op.remote_node is None
11075 assert self.op.iallocator is not None
11076 assert not self.needed_locks[locking.LEVEL_NODEGROUP]
11078 self.share_locks[locking.LEVEL_NODEGROUP] = 1
11079 # Lock all groups used by instance optimistically; this requires going
11080 # via the node before it's locked, requiring verification later on
11081 self.needed_locks[locking.LEVEL_NODEGROUP] = \
11082 self.cfg.GetInstanceNodeGroups(self.op.instance_name)
11084 elif level == locking.LEVEL_NODE:
11085 if self.op.iallocator is not None:
11086 assert self.op.remote_node is None
11087 assert not self.needed_locks[locking.LEVEL_NODE]
11088 assert locking.NAL in self.owned_locks(locking.LEVEL_NODE_ALLOC)
11090 # Lock member nodes of all locked groups
11091 self.needed_locks[locking.LEVEL_NODE] = \
11093 for group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP)
11094 for node_name in self.cfg.GetNodeGroup(group_uuid).members]
11096 assert not self.glm.is_owned(locking.LEVEL_NODE_ALLOC)
11098 self._LockInstancesNodes()
11100 elif level == locking.LEVEL_NODE_RES:
11102 self.needed_locks[locking.LEVEL_NODE_RES] = \
11103 self.needed_locks[locking.LEVEL_NODE]
11105 def BuildHooksEnv(self):
11106 """Build hooks env.
11108 This runs on the master, the primary and all the secondaries.
11111 instance = self.replacer.instance
11113 "MODE": self.op.mode,
11114 "NEW_SECONDARY": self.op.remote_node,
11115 "OLD_SECONDARY": instance.secondary_nodes[0],
11117 env.update(_BuildInstanceHookEnvByObject(self, instance))
11120 def BuildHooksNodes(self):
11121 """Build hooks nodes.
11124 instance = self.replacer.instance
11126 self.cfg.GetMasterNode(),
11127 instance.primary_node,
11129 if self.op.remote_node is not None:
11130 nl.append(self.op.remote_node)
11133 def CheckPrereq(self):
11134 """Check prerequisites.
11137 assert (self.glm.is_owned(locking.LEVEL_NODEGROUP) or
11138 self.op.iallocator is None)
11140 # Verify if node group locks are still correct
11141 owned_groups = self.owned_locks(locking.LEVEL_NODEGROUP)
11143 _CheckInstanceNodeGroups(self.cfg, self.op.instance_name, owned_groups)
11145 return LogicalUnit.CheckPrereq(self)
11148 class TLReplaceDisks(Tasklet):
11149 """Replaces disks for an instance.
11151 Note: Locking is not within the scope of this class.
11154 def __init__(self, lu, instance_name, mode, iallocator_name, remote_node,
11155 disks, early_release, ignore_ipolicy):
11156 """Initializes this class.
11159 Tasklet.__init__(self, lu)
11162 self.instance_name = instance_name
11164 self.iallocator_name = iallocator_name
11165 self.remote_node = remote_node
11167 self.early_release = early_release
11168 self.ignore_ipolicy = ignore_ipolicy
11171 self.instance = None
11172 self.new_node = None
11173 self.target_node = None
11174 self.other_node = None
11175 self.remote_node_info = None
11176 self.node_secondary_ip = None
11179 def _RunAllocator(lu, iallocator_name, instance_name, relocate_from):
11180 """Compute a new secondary node using an IAllocator.
11183 req = iallocator.IAReqRelocate(name=instance_name,
11184 relocate_from=list(relocate_from))
11185 ial = iallocator.IAllocator(lu.cfg, lu.rpc, req)
11187 ial.Run(iallocator_name)
11189 if not ial.success:
11190 raise errors.OpPrereqError("Can't compute nodes using iallocator '%s':"
11191 " %s" % (iallocator_name, ial.info),
11192 errors.ECODE_NORES)
11194 remote_node_name = ial.result[0]
11196 lu.LogInfo("Selected new secondary for instance '%s': %s",
11197 instance_name, remote_node_name)
11199 return remote_node_name
11201 def _FindFaultyDisks(self, node_name):
11202 """Wrapper for L{_FindFaultyInstanceDisks}.
11205 return _FindFaultyInstanceDisks(self.cfg, self.rpc, self.instance,
11208 def _CheckDisksActivated(self, instance):
11209 """Checks if the instance disks are activated.
11211 @param instance: The instance to check disks
11212 @return: True if they are activated, False otherwise
11215 nodes = instance.all_nodes
11217 for idx, dev in enumerate(instance.disks):
11219 self.lu.LogInfo("Checking disk/%d on %s", idx, node)
11220 self.cfg.SetDiskID(dev, node)
11222 result = _BlockdevFind(self, node, dev, instance)
11226 elif result.fail_msg or not result.payload:
11231 def CheckPrereq(self):
11232 """Check prerequisites.
11234 This checks that the instance is in the cluster.
11237 self.instance = instance = self.cfg.GetInstanceInfo(self.instance_name)
11238 assert instance is not None, \
11239 "Cannot retrieve locked instance %s" % self.instance_name
11241 if instance.disk_template != constants.DT_DRBD8:
11242 raise errors.OpPrereqError("Can only run replace disks for DRBD8-based"
11243 " instances", errors.ECODE_INVAL)
11245 if len(instance.secondary_nodes) != 1:
11246 raise errors.OpPrereqError("The instance has a strange layout,"
11247 " expected one secondary but found %d" %
11248 len(instance.secondary_nodes),
11249 errors.ECODE_FAULT)
11251 instance = self.instance
11252 secondary_node = instance.secondary_nodes[0]
11254 if self.iallocator_name is None:
11255 remote_node = self.remote_node
11257 remote_node = self._RunAllocator(self.lu, self.iallocator_name,
11258 instance.name, instance.secondary_nodes)
11260 if remote_node is None:
11261 self.remote_node_info = None
11263 assert remote_node in self.lu.owned_locks(locking.LEVEL_NODE), \
11264 "Remote node '%s' is not locked" % remote_node
11266 self.remote_node_info = self.cfg.GetNodeInfo(remote_node)
11267 assert self.remote_node_info is not None, \
11268 "Cannot retrieve locked node %s" % remote_node
11270 if remote_node == self.instance.primary_node:
11271 raise errors.OpPrereqError("The specified node is the primary node of"
11272 " the instance", errors.ECODE_INVAL)
11274 if remote_node == secondary_node:
11275 raise errors.OpPrereqError("The specified node is already the"
11276 " secondary node of the instance",
11277 errors.ECODE_INVAL)
11279 if self.disks and self.mode in (constants.REPLACE_DISK_AUTO,
11280 constants.REPLACE_DISK_CHG):
11281 raise errors.OpPrereqError("Cannot specify disks to be replaced",
11282 errors.ECODE_INVAL)
11284 if self.mode == constants.REPLACE_DISK_AUTO:
11285 if not self._CheckDisksActivated(instance):
11286 raise errors.OpPrereqError("Please run activate-disks on instance %s"
11287 " first" % self.instance_name,
11288 errors.ECODE_STATE)
11289 faulty_primary = self._FindFaultyDisks(instance.primary_node)
11290 faulty_secondary = self._FindFaultyDisks(secondary_node)
11292 if faulty_primary and faulty_secondary:
11293 raise errors.OpPrereqError("Instance %s has faulty disks on more than"
11294 " one node and can not be repaired"
11295 " automatically" % self.instance_name,
11296 errors.ECODE_STATE)
11299 self.disks = faulty_primary
11300 self.target_node = instance.primary_node
11301 self.other_node = secondary_node
11302 check_nodes = [self.target_node, self.other_node]
11303 elif faulty_secondary:
11304 self.disks = faulty_secondary
11305 self.target_node = secondary_node
11306 self.other_node = instance.primary_node
11307 check_nodes = [self.target_node, self.other_node]
11313 # Non-automatic modes
11314 if self.mode == constants.REPLACE_DISK_PRI:
11315 self.target_node = instance.primary_node
11316 self.other_node = secondary_node
11317 check_nodes = [self.target_node, self.other_node]
11319 elif self.mode == constants.REPLACE_DISK_SEC:
11320 self.target_node = secondary_node
11321 self.other_node = instance.primary_node
11322 check_nodes = [self.target_node, self.other_node]
11324 elif self.mode == constants.REPLACE_DISK_CHG:
11325 self.new_node = remote_node
11326 self.other_node = instance.primary_node
11327 self.target_node = secondary_node
11328 check_nodes = [self.new_node, self.other_node]
11330 _CheckNodeNotDrained(self.lu, remote_node)
11331 _CheckNodeVmCapable(self.lu, remote_node)
11333 old_node_info = self.cfg.GetNodeInfo(secondary_node)
11334 assert old_node_info is not None
11335 if old_node_info.offline and not self.early_release:
11336 # doesn't make sense to delay the release
11337 self.early_release = True
11338 self.lu.LogInfo("Old secondary %s is offline, automatically enabling"
11339 " early-release mode", secondary_node)
11342 raise errors.ProgrammerError("Unhandled disk replace mode (%s)" %
11345 # If not specified all disks should be replaced
11347 self.disks = range(len(self.instance.disks))
11349 # TODO: This is ugly, but right now we can't distinguish between internal
11350 # submitted opcode and external one. We should fix that.
11351 if self.remote_node_info:
11352 # We change the node, lets verify it still meets instance policy
11353 new_group_info = self.cfg.GetNodeGroup(self.remote_node_info.group)
11354 cluster = self.cfg.GetClusterInfo()
11355 ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster,
11357 _CheckTargetNodeIPolicy(self, ipolicy, instance, self.remote_node_info,
11358 ignore=self.ignore_ipolicy)
11360 for node in check_nodes:
11361 _CheckNodeOnline(self.lu, node)
11363 touched_nodes = frozenset(node_name for node_name in [self.new_node,
11366 if node_name is not None)
11368 # Release unneeded node and node resource locks
11369 _ReleaseLocks(self.lu, locking.LEVEL_NODE, keep=touched_nodes)
11370 _ReleaseLocks(self.lu, locking.LEVEL_NODE_RES, keep=touched_nodes)
11371 _ReleaseLocks(self.lu, locking.LEVEL_NODE_ALLOC)
11373 # Release any owned node group
11374 _ReleaseLocks(self.lu, locking.LEVEL_NODEGROUP)
11376 # Check whether disks are valid
11377 for disk_idx in self.disks:
11378 instance.FindDisk(disk_idx)
11380 # Get secondary node IP addresses
11381 self.node_secondary_ip = dict((name, node.secondary_ip) for (name, node)
11382 in self.cfg.GetMultiNodeInfo(touched_nodes))
11384 def Exec(self, feedback_fn):
11385 """Execute disk replacement.
11387 This dispatches the disk replacement to the appropriate handler.
11391 # Verify owned locks before starting operation
11392 owned_nodes = self.lu.owned_locks(locking.LEVEL_NODE)
11393 assert set(owned_nodes) == set(self.node_secondary_ip), \
11394 ("Incorrect node locks, owning %s, expected %s" %
11395 (owned_nodes, self.node_secondary_ip.keys()))
11396 assert (self.lu.owned_locks(locking.LEVEL_NODE) ==
11397 self.lu.owned_locks(locking.LEVEL_NODE_RES))
11398 assert not self.lu.glm.is_owned(locking.LEVEL_NODE_ALLOC)
11400 owned_instances = self.lu.owned_locks(locking.LEVEL_INSTANCE)
11401 assert list(owned_instances) == [self.instance_name], \
11402 "Instance '%s' not locked" % self.instance_name
11404 assert not self.lu.glm.is_owned(locking.LEVEL_NODEGROUP), \
11405 "Should not own any node group lock at this point"
11408 feedback_fn("No disks need replacement for instance '%s'" %
11409 self.instance.name)
11412 feedback_fn("Replacing disk(s) %s for instance '%s'" %
11413 (utils.CommaJoin(self.disks), self.instance.name))
11414 feedback_fn("Current primary node: %s" % self.instance.primary_node)
11415 feedback_fn("Current seconary node: %s" %
11416 utils.CommaJoin(self.instance.secondary_nodes))
11418 activate_disks = (self.instance.admin_state != constants.ADMINST_UP)
11420 # Activate the instance disks if we're replacing them on a down instance
11422 _StartInstanceDisks(self.lu, self.instance, True)
11425 # Should we replace the secondary node?
11426 if self.new_node is not None:
11427 fn = self._ExecDrbd8Secondary
11429 fn = self._ExecDrbd8DiskOnly
11431 result = fn(feedback_fn)
11433 # Deactivate the instance disks if we're replacing them on a
11436 _SafeShutdownInstanceDisks(self.lu, self.instance)
11438 assert not self.lu.owned_locks(locking.LEVEL_NODE)
11441 # Verify owned locks
11442 owned_nodes = self.lu.owned_locks(locking.LEVEL_NODE_RES)
11443 nodes = frozenset(self.node_secondary_ip)
11444 assert ((self.early_release and not owned_nodes) or
11445 (not self.early_release and not (set(owned_nodes) - nodes))), \
11446 ("Not owning the correct locks, early_release=%s, owned=%r,"
11447 " nodes=%r" % (self.early_release, owned_nodes, nodes))
11451 def _CheckVolumeGroup(self, nodes):
11452 self.lu.LogInfo("Checking volume groups")
11454 vgname = self.cfg.GetVGName()
11456 # Make sure volume group exists on all involved nodes
11457 results = self.rpc.call_vg_list(nodes)
11459 raise errors.OpExecError("Can't list volume groups on the nodes")
11462 res = results[node]
11463 res.Raise("Error checking node %s" % node)
11464 if vgname not in res.payload:
11465 raise errors.OpExecError("Volume group '%s' not found on node %s" %
11468 def _CheckDisksExistence(self, nodes):
11469 # Check disk existence
11470 for idx, dev in enumerate(self.instance.disks):
11471 if idx not in self.disks:
11475 self.lu.LogInfo("Checking disk/%d on %s", idx, node)
11476 self.cfg.SetDiskID(dev, node)
11478 result = _BlockdevFind(self, node, dev, self.instance)
11480 msg = result.fail_msg
11481 if msg or not result.payload:
11483 msg = "disk not found"
11484 raise errors.OpExecError("Can't find disk/%d on node %s: %s" %
11487 def _CheckDisksConsistency(self, node_name, on_primary, ldisk):
11488 for idx, dev in enumerate(self.instance.disks):
11489 if idx not in self.disks:
11492 self.lu.LogInfo("Checking disk/%d consistency on node %s" %
11495 if not _CheckDiskConsistency(self.lu, self.instance, dev, node_name,
11496 on_primary, ldisk=ldisk):
11497 raise errors.OpExecError("Node %s has degraded storage, unsafe to"
11498 " replace disks for instance %s" %
11499 (node_name, self.instance.name))
11501 def _CreateNewStorage(self, node_name):
11502 """Create new storage on the primary or secondary node.
11504 This is only used for same-node replaces, not for changing the
11505 secondary node, hence we don't want to modify the existing disk.
11510 disks = _AnnotateDiskParams(self.instance, self.instance.disks, self.cfg)
11511 for idx, dev in enumerate(disks):
11512 if idx not in self.disks:
11515 self.lu.LogInfo("Adding storage on %s for disk/%d", node_name, idx)
11517 self.cfg.SetDiskID(dev, node_name)
11519 lv_names = [".disk%d_%s" % (idx, suffix) for suffix in ["data", "meta"]]
11520 names = _GenerateUniqueNames(self.lu, lv_names)
11522 (data_disk, meta_disk) = dev.children
11523 vg_data = data_disk.logical_id[0]
11524 lv_data = objects.Disk(dev_type=constants.LD_LV, size=dev.size,
11525 logical_id=(vg_data, names[0]),
11526 params=data_disk.params)
11527 vg_meta = meta_disk.logical_id[0]
11528 lv_meta = objects.Disk(dev_type=constants.LD_LV,
11529 size=constants.DRBD_META_SIZE,
11530 logical_id=(vg_meta, names[1]),
11531 params=meta_disk.params)
11533 new_lvs = [lv_data, lv_meta]
11534 old_lvs = [child.Copy() for child in dev.children]
11535 iv_names[dev.iv_name] = (dev, old_lvs, new_lvs)
11537 # we pass force_create=True to force the LVM creation
11538 for new_lv in new_lvs:
11539 _CreateBlockDevInner(self.lu, node_name, self.instance, new_lv, True,
11540 _GetInstanceInfoText(self.instance), False)
11544 def _CheckDevices(self, node_name, iv_names):
11545 for name, (dev, _, _) in iv_names.iteritems():
11546 self.cfg.SetDiskID(dev, node_name)
11548 result = _BlockdevFind(self, node_name, dev, self.instance)
11550 msg = result.fail_msg
11551 if msg or not result.payload:
11553 msg = "disk not found"
11554 raise errors.OpExecError("Can't find DRBD device %s: %s" %
11557 if result.payload.is_degraded:
11558 raise errors.OpExecError("DRBD device %s is degraded!" % name)
11560 def _RemoveOldStorage(self, node_name, iv_names):
11561 for name, (_, old_lvs, _) in iv_names.iteritems():
11562 self.lu.LogInfo("Remove logical volumes for %s", name)
11565 self.cfg.SetDiskID(lv, node_name)
11567 msg = self.rpc.call_blockdev_remove(node_name, lv).fail_msg
11569 self.lu.LogWarning("Can't remove old LV: %s", msg,
11570 hint="remove unused LVs manually")
11572 def _ExecDrbd8DiskOnly(self, feedback_fn): # pylint: disable=W0613
11573 """Replace a disk on the primary or secondary for DRBD 8.
11575 The algorithm for replace is quite complicated:
11577 1. for each disk to be replaced:
11579 1. create new LVs on the target node with unique names
11580 1. detach old LVs from the drbd device
11581 1. rename old LVs to name_replaced.<time_t>
11582 1. rename new LVs to old LVs
11583 1. attach the new LVs (with the old names now) to the drbd device
11585 1. wait for sync across all devices
11587 1. for each modified disk:
11589 1. remove old LVs (which have the name name_replaces.<time_t>)
11591 Failures are not very well handled.
11596 # Step: check device activation
11597 self.lu.LogStep(1, steps_total, "Check device existence")
11598 self._CheckDisksExistence([self.other_node, self.target_node])
11599 self._CheckVolumeGroup([self.target_node, self.other_node])
11601 # Step: check other node consistency
11602 self.lu.LogStep(2, steps_total, "Check peer consistency")
11603 self._CheckDisksConsistency(self.other_node,
11604 self.other_node == self.instance.primary_node,
11607 # Step: create new storage
11608 self.lu.LogStep(3, steps_total, "Allocate new storage")
11609 iv_names = self._CreateNewStorage(self.target_node)
11611 # Step: for each lv, detach+rename*2+attach
11612 self.lu.LogStep(4, steps_total, "Changing drbd configuration")
11613 for dev, old_lvs, new_lvs in iv_names.itervalues():
11614 self.lu.LogInfo("Detaching %s drbd from local storage", dev.iv_name)
11616 result = self.rpc.call_blockdev_removechildren(self.target_node, dev,
11618 result.Raise("Can't detach drbd from local storage on node"
11619 " %s for device %s" % (self.target_node, dev.iv_name))
11621 #cfg.Update(instance)
11623 # ok, we created the new LVs, so now we know we have the needed
11624 # storage; as such, we proceed on the target node to rename
11625 # old_lv to _old, and new_lv to old_lv; note that we rename LVs
11626 # using the assumption that logical_id == physical_id (which in
11627 # turn is the unique_id on that node)
11629 # FIXME(iustin): use a better name for the replaced LVs
11630 temp_suffix = int(time.time())
11631 ren_fn = lambda d, suff: (d.physical_id[0],
11632 d.physical_id[1] + "_replaced-%s" % suff)
11634 # Build the rename list based on what LVs exist on the node
11635 rename_old_to_new = []
11636 for to_ren in old_lvs:
11637 result = self.rpc.call_blockdev_find(self.target_node, to_ren)
11638 if not result.fail_msg and result.payload:
11640 rename_old_to_new.append((to_ren, ren_fn(to_ren, temp_suffix)))
11642 self.lu.LogInfo("Renaming the old LVs on the target node")
11643 result = self.rpc.call_blockdev_rename(self.target_node,
11645 result.Raise("Can't rename old LVs on node %s" % self.target_node)
11647 # Now we rename the new LVs to the old LVs
11648 self.lu.LogInfo("Renaming the new LVs on the target node")
11649 rename_new_to_old = [(new, old.physical_id)
11650 for old, new in zip(old_lvs, new_lvs)]
11651 result = self.rpc.call_blockdev_rename(self.target_node,
11653 result.Raise("Can't rename new LVs on node %s" % self.target_node)
11655 # Intermediate steps of in memory modifications
11656 for old, new in zip(old_lvs, new_lvs):
11657 new.logical_id = old.logical_id
11658 self.cfg.SetDiskID(new, self.target_node)
11660 # We need to modify old_lvs so that removal later removes the
11661 # right LVs, not the newly added ones; note that old_lvs is a
11663 for disk in old_lvs:
11664 disk.logical_id = ren_fn(disk, temp_suffix)
11665 self.cfg.SetDiskID(disk, self.target_node)
11667 # Now that the new lvs have the old name, we can add them to the device
11668 self.lu.LogInfo("Adding new mirror component on %s", self.target_node)
11669 result = self.rpc.call_blockdev_addchildren(self.target_node,
11670 (dev, self.instance), new_lvs)
11671 msg = result.fail_msg
11673 for new_lv in new_lvs:
11674 msg2 = self.rpc.call_blockdev_remove(self.target_node,
11677 self.lu.LogWarning("Can't rollback device %s: %s", dev, msg2,
11678 hint=("cleanup manually the unused logical"
11680 raise errors.OpExecError("Can't add local storage to drbd: %s" % msg)
11682 cstep = itertools.count(5)
11684 if self.early_release:
11685 self.lu.LogStep(cstep.next(), steps_total, "Removing old storage")
11686 self._RemoveOldStorage(self.target_node, iv_names)
11687 # TODO: Check if releasing locks early still makes sense
11688 _ReleaseLocks(self.lu, locking.LEVEL_NODE_RES)
11690 # Release all resource locks except those used by the instance
11691 _ReleaseLocks(self.lu, locking.LEVEL_NODE_RES,
11692 keep=self.node_secondary_ip.keys())
11694 # Release all node locks while waiting for sync
11695 _ReleaseLocks(self.lu, locking.LEVEL_NODE)
11697 # TODO: Can the instance lock be downgraded here? Take the optional disk
11698 # shutdown in the caller into consideration.
11701 # This can fail as the old devices are degraded and _WaitForSync
11702 # does a combined result over all disks, so we don't check its return value
11703 self.lu.LogStep(cstep.next(), steps_total, "Sync devices")
11704 _WaitForSync(self.lu, self.instance)
11706 # Check all devices manually
11707 self._CheckDevices(self.instance.primary_node, iv_names)
11709 # Step: remove old storage
11710 if not self.early_release:
11711 self.lu.LogStep(cstep.next(), steps_total, "Removing old storage")
11712 self._RemoveOldStorage(self.target_node, iv_names)
11714 def _ExecDrbd8Secondary(self, feedback_fn):
11715 """Replace the secondary node for DRBD 8.
11717 The algorithm for replace is quite complicated:
11718 - for all disks of the instance:
11719 - create new LVs on the new node with same names
11720 - shutdown the drbd device on the old secondary
11721 - disconnect the drbd network on the primary
11722 - create the drbd device on the new secondary
11723 - network attach the drbd on the primary, using an artifice:
11724 the drbd code for Attach() will connect to the network if it
11725 finds a device which is connected to the good local disks but
11726 not network enabled
11727 - wait for sync across all devices
11728 - remove all disks from the old secondary
11730 Failures are not very well handled.
11735 pnode = self.instance.primary_node
11737 # Step: check device activation
11738 self.lu.LogStep(1, steps_total, "Check device existence")
11739 self._CheckDisksExistence([self.instance.primary_node])
11740 self._CheckVolumeGroup([self.instance.primary_node])
11742 # Step: check other node consistency
11743 self.lu.LogStep(2, steps_total, "Check peer consistency")
11744 self._CheckDisksConsistency(self.instance.primary_node, True, True)
11746 # Step: create new storage
11747 self.lu.LogStep(3, steps_total, "Allocate new storage")
11748 disks = _AnnotateDiskParams(self.instance, self.instance.disks, self.cfg)
11749 for idx, dev in enumerate(disks):
11750 self.lu.LogInfo("Adding new local storage on %s for disk/%d" %
11751 (self.new_node, idx))
11752 # we pass force_create=True to force LVM creation
11753 for new_lv in dev.children:
11754 _CreateBlockDevInner(self.lu, self.new_node, self.instance, new_lv,
11755 True, _GetInstanceInfoText(self.instance), False)
11757 # Step 4: dbrd minors and drbd setups changes
11758 # after this, we must manually remove the drbd minors on both the
11759 # error and the success paths
11760 self.lu.LogStep(4, steps_total, "Changing drbd configuration")
11761 minors = self.cfg.AllocateDRBDMinor([self.new_node
11762 for dev in self.instance.disks],
11763 self.instance.name)
11764 logging.debug("Allocated minors %r", minors)
11767 for idx, (dev, new_minor) in enumerate(zip(self.instance.disks, minors)):
11768 self.lu.LogInfo("activating a new drbd on %s for disk/%d" %
11769 (self.new_node, idx))
11770 # create new devices on new_node; note that we create two IDs:
11771 # one without port, so the drbd will be activated without
11772 # networking information on the new node at this stage, and one
11773 # with network, for the latter activation in step 4
11774 (o_node1, o_node2, o_port, o_minor1, o_minor2, o_secret) = dev.logical_id
11775 if self.instance.primary_node == o_node1:
11778 assert self.instance.primary_node == o_node2, "Three-node instance?"
11781 new_alone_id = (self.instance.primary_node, self.new_node, None,
11782 p_minor, new_minor, o_secret)
11783 new_net_id = (self.instance.primary_node, self.new_node, o_port,
11784 p_minor, new_minor, o_secret)
11786 iv_names[idx] = (dev, dev.children, new_net_id)
11787 logging.debug("Allocated new_minor: %s, new_logical_id: %s", new_minor,
11789 new_drbd = objects.Disk(dev_type=constants.LD_DRBD8,
11790 logical_id=new_alone_id,
11791 children=dev.children,
11794 (anno_new_drbd,) = _AnnotateDiskParams(self.instance, [new_drbd],
11797 _CreateSingleBlockDev(self.lu, self.new_node, self.instance,
11799 _GetInstanceInfoText(self.instance), False)
11800 except errors.GenericError:
11801 self.cfg.ReleaseDRBDMinors(self.instance.name)
11804 # We have new devices, shutdown the drbd on the old secondary
11805 for idx, dev in enumerate(self.instance.disks):
11806 self.lu.LogInfo("Shutting down drbd for disk/%d on old node", idx)
11807 self.cfg.SetDiskID(dev, self.target_node)
11808 msg = self.rpc.call_blockdev_shutdown(self.target_node,
11809 (dev, self.instance)).fail_msg
11811 self.lu.LogWarning("Failed to shutdown drbd for disk/%d on old"
11812 "node: %s" % (idx, msg),
11813 hint=("Please cleanup this device manually as"
11814 " soon as possible"))
11816 self.lu.LogInfo("Detaching primary drbds from the network (=> standalone)")
11817 result = self.rpc.call_drbd_disconnect_net([pnode], self.node_secondary_ip,
11818 self.instance.disks)[pnode]
11820 msg = result.fail_msg
11822 # detaches didn't succeed (unlikely)
11823 self.cfg.ReleaseDRBDMinors(self.instance.name)
11824 raise errors.OpExecError("Can't detach the disks from the network on"
11825 " old node: %s" % (msg,))
11827 # if we managed to detach at least one, we update all the disks of
11828 # the instance to point to the new secondary
11829 self.lu.LogInfo("Updating instance configuration")
11830 for dev, _, new_logical_id in iv_names.itervalues():
11831 dev.logical_id = new_logical_id
11832 self.cfg.SetDiskID(dev, self.instance.primary_node)
11834 self.cfg.Update(self.instance, feedback_fn)
11836 # Release all node locks (the configuration has been updated)
11837 _ReleaseLocks(self.lu, locking.LEVEL_NODE)
11839 # and now perform the drbd attach
11840 self.lu.LogInfo("Attaching primary drbds to new secondary"
11841 " (standalone => connected)")
11842 result = self.rpc.call_drbd_attach_net([self.instance.primary_node,
11844 self.node_secondary_ip,
11845 (self.instance.disks, self.instance),
11846 self.instance.name,
11848 for to_node, to_result in result.items():
11849 msg = to_result.fail_msg
11851 self.lu.LogWarning("Can't attach drbd disks on node %s: %s",
11853 hint=("please do a gnt-instance info to see the"
11854 " status of disks"))
11856 cstep = itertools.count(5)
11858 if self.early_release:
11859 self.lu.LogStep(cstep.next(), steps_total, "Removing old storage")
11860 self._RemoveOldStorage(self.target_node, iv_names)
11861 # TODO: Check if releasing locks early still makes sense
11862 _ReleaseLocks(self.lu, locking.LEVEL_NODE_RES)
11864 # Release all resource locks except those used by the instance
11865 _ReleaseLocks(self.lu, locking.LEVEL_NODE_RES,
11866 keep=self.node_secondary_ip.keys())
11868 # TODO: Can the instance lock be downgraded here? Take the optional disk
11869 # shutdown in the caller into consideration.
11872 # This can fail as the old devices are degraded and _WaitForSync
11873 # does a combined result over all disks, so we don't check its return value
11874 self.lu.LogStep(cstep.next(), steps_total, "Sync devices")
11875 _WaitForSync(self.lu, self.instance)
11877 # Check all devices manually
11878 self._CheckDevices(self.instance.primary_node, iv_names)
11880 # Step: remove old storage
11881 if not self.early_release:
11882 self.lu.LogStep(cstep.next(), steps_total, "Removing old storage")
11883 self._RemoveOldStorage(self.target_node, iv_names)
11886 class LURepairNodeStorage(NoHooksLU):
11887 """Repairs the volume group on a node.
11892 def CheckArguments(self):
11893 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
11895 storage_type = self.op.storage_type
11897 if (constants.SO_FIX_CONSISTENCY not in
11898 constants.VALID_STORAGE_OPERATIONS.get(storage_type, [])):
11899 raise errors.OpPrereqError("Storage units of type '%s' can not be"
11900 " repaired" % storage_type,
11901 errors.ECODE_INVAL)
11903 def ExpandNames(self):
11904 self.needed_locks = {
11905 locking.LEVEL_NODE: [self.op.node_name],
11908 def _CheckFaultyDisks(self, instance, node_name):
11909 """Ensure faulty disks abort the opcode or at least warn."""
11911 if _FindFaultyInstanceDisks(self.cfg, self.rpc, instance,
11913 raise errors.OpPrereqError("Instance '%s' has faulty disks on"
11914 " node '%s'" % (instance.name, node_name),
11915 errors.ECODE_STATE)
11916 except errors.OpPrereqError, err:
11917 if self.op.ignore_consistency:
11918 self.LogWarning(str(err.args[0]))
11922 def CheckPrereq(self):
11923 """Check prerequisites.
11926 # Check whether any instance on this node has faulty disks
11927 for inst in _GetNodeInstances(self.cfg, self.op.node_name):
11928 if inst.admin_state != constants.ADMINST_UP:
11930 check_nodes = set(inst.all_nodes)
11931 check_nodes.discard(self.op.node_name)
11932 for inst_node_name in check_nodes:
11933 self._CheckFaultyDisks(inst, inst_node_name)
11935 def Exec(self, feedback_fn):
11936 feedback_fn("Repairing storage unit '%s' on %s ..." %
11937 (self.op.name, self.op.node_name))
11939 st_args = _GetStorageTypeArgs(self.cfg, self.op.storage_type)
11940 result = self.rpc.call_storage_execute(self.op.node_name,
11941 self.op.storage_type, st_args,
11943 constants.SO_FIX_CONSISTENCY)
11944 result.Raise("Failed to repair storage unit '%s' on %s" %
11945 (self.op.name, self.op.node_name))
11948 class LUNodeEvacuate(NoHooksLU):
11949 """Evacuates instances off a list of nodes.
11954 _MODE2IALLOCATOR = {
11955 constants.NODE_EVAC_PRI: constants.IALLOCATOR_NEVAC_PRI,
11956 constants.NODE_EVAC_SEC: constants.IALLOCATOR_NEVAC_SEC,
11957 constants.NODE_EVAC_ALL: constants.IALLOCATOR_NEVAC_ALL,
11959 assert frozenset(_MODE2IALLOCATOR.keys()) == constants.NODE_EVAC_MODES
11960 assert (frozenset(_MODE2IALLOCATOR.values()) ==
11961 constants.IALLOCATOR_NEVAC_MODES)
11963 def CheckArguments(self):
11964 _CheckIAllocatorOrNode(self, "iallocator", "remote_node")
11966 def ExpandNames(self):
11967 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
11969 if self.op.remote_node is not None:
11970 self.op.remote_node = _ExpandNodeName(self.cfg, self.op.remote_node)
11971 assert self.op.remote_node
11973 if self.op.remote_node == self.op.node_name:
11974 raise errors.OpPrereqError("Can not use evacuated node as a new"
11975 " secondary node", errors.ECODE_INVAL)
11977 if self.op.mode != constants.NODE_EVAC_SEC:
11978 raise errors.OpPrereqError("Without the use of an iallocator only"
11979 " secondary instances can be evacuated",
11980 errors.ECODE_INVAL)
11983 self.share_locks = _ShareAll()
11984 self.needed_locks = {
11985 locking.LEVEL_INSTANCE: [],
11986 locking.LEVEL_NODEGROUP: [],
11987 locking.LEVEL_NODE: [],
11990 # Determine nodes (via group) optimistically, needs verification once locks
11991 # have been acquired
11992 self.lock_nodes = self._DetermineNodes()
11994 def _DetermineNodes(self):
11995 """Gets the list of nodes to operate on.
11998 if self.op.remote_node is None:
11999 # Iallocator will choose any node(s) in the same group
12000 group_nodes = self.cfg.GetNodeGroupMembersByNodes([self.op.node_name])
12002 group_nodes = frozenset([self.op.remote_node])
12004 # Determine nodes to be locked
12005 return set([self.op.node_name]) | group_nodes
12007 def _DetermineInstances(self):
12008 """Builds list of instances to operate on.
12011 assert self.op.mode in constants.NODE_EVAC_MODES
12013 if self.op.mode == constants.NODE_EVAC_PRI:
12014 # Primary instances only
12015 inst_fn = _GetNodePrimaryInstances
12016 assert self.op.remote_node is None, \
12017 "Evacuating primary instances requires iallocator"
12018 elif self.op.mode == constants.NODE_EVAC_SEC:
12019 # Secondary instances only
12020 inst_fn = _GetNodeSecondaryInstances
12023 assert self.op.mode == constants.NODE_EVAC_ALL
12024 inst_fn = _GetNodeInstances
12025 # TODO: In 2.6, change the iallocator interface to take an evacuation mode
12027 raise errors.OpPrereqError("Due to an issue with the iallocator"
12028 " interface it is not possible to evacuate"
12029 " all instances at once; specify explicitly"
12030 " whether to evacuate primary or secondary"
12032 errors.ECODE_INVAL)
12034 return inst_fn(self.cfg, self.op.node_name)
12036 def DeclareLocks(self, level):
12037 if level == locking.LEVEL_INSTANCE:
12038 # Lock instances optimistically, needs verification once node and group
12039 # locks have been acquired
12040 self.needed_locks[locking.LEVEL_INSTANCE] = \
12041 set(i.name for i in self._DetermineInstances())
12043 elif level == locking.LEVEL_NODEGROUP:
12044 # Lock node groups for all potential target nodes optimistically, needs
12045 # verification once nodes have been acquired
12046 self.needed_locks[locking.LEVEL_NODEGROUP] = \
12047 self.cfg.GetNodeGroupsFromNodes(self.lock_nodes)
12049 elif level == locking.LEVEL_NODE:
12050 self.needed_locks[locking.LEVEL_NODE] = self.lock_nodes
12052 def CheckPrereq(self):
12054 owned_instances = self.owned_locks(locking.LEVEL_INSTANCE)
12055 owned_nodes = self.owned_locks(locking.LEVEL_NODE)
12056 owned_groups = self.owned_locks(locking.LEVEL_NODEGROUP)
12058 need_nodes = self._DetermineNodes()
12060 if not owned_nodes.issuperset(need_nodes):
12061 raise errors.OpPrereqError("Nodes in same group as '%s' changed since"
12062 " locks were acquired, current nodes are"
12063 " are '%s', used to be '%s'; retry the"
12065 (self.op.node_name,
12066 utils.CommaJoin(need_nodes),
12067 utils.CommaJoin(owned_nodes)),
12068 errors.ECODE_STATE)
12070 wanted_groups = self.cfg.GetNodeGroupsFromNodes(owned_nodes)
12071 if owned_groups != wanted_groups:
12072 raise errors.OpExecError("Node groups changed since locks were acquired,"
12073 " current groups are '%s', used to be '%s';"
12074 " retry the operation" %
12075 (utils.CommaJoin(wanted_groups),
12076 utils.CommaJoin(owned_groups)))
12078 # Determine affected instances
12079 self.instances = self._DetermineInstances()
12080 self.instance_names = [i.name for i in self.instances]
12082 if set(self.instance_names) != owned_instances:
12083 raise errors.OpExecError("Instances on node '%s' changed since locks"
12084 " were acquired, current instances are '%s',"
12085 " used to be '%s'; retry the operation" %
12086 (self.op.node_name,
12087 utils.CommaJoin(self.instance_names),
12088 utils.CommaJoin(owned_instances)))
12090 if self.instance_names:
12091 self.LogInfo("Evacuating instances from node '%s': %s",
12093 utils.CommaJoin(utils.NiceSort(self.instance_names)))
12095 self.LogInfo("No instances to evacuate from node '%s'",
12098 if self.op.remote_node is not None:
12099 for i in self.instances:
12100 if i.primary_node == self.op.remote_node:
12101 raise errors.OpPrereqError("Node %s is the primary node of"
12102 " instance %s, cannot use it as"
12104 (self.op.remote_node, i.name),
12105 errors.ECODE_INVAL)
12107 def Exec(self, feedback_fn):
12108 assert (self.op.iallocator is not None) ^ (self.op.remote_node is not None)
12110 if not self.instance_names:
12111 # No instances to evacuate
12114 elif self.op.iallocator is not None:
12115 # TODO: Implement relocation to other group
12116 evac_mode = self._MODE2IALLOCATOR[self.op.mode]
12117 req = iallocator.IAReqNodeEvac(evac_mode=evac_mode,
12118 instances=list(self.instance_names))
12119 ial = iallocator.IAllocator(self.cfg, self.rpc, req)
12121 ial.Run(self.op.iallocator)
12123 if not ial.success:
12124 raise errors.OpPrereqError("Can't compute node evacuation using"
12125 " iallocator '%s': %s" %
12126 (self.op.iallocator, ial.info),
12127 errors.ECODE_NORES)
12129 jobs = _LoadNodeEvacResult(self, ial.result, self.op.early_release, True)
12131 elif self.op.remote_node is not None:
12132 assert self.op.mode == constants.NODE_EVAC_SEC
12134 [opcodes.OpInstanceReplaceDisks(instance_name=instance_name,
12135 remote_node=self.op.remote_node,
12137 mode=constants.REPLACE_DISK_CHG,
12138 early_release=self.op.early_release)]
12139 for instance_name in self.instance_names]
12142 raise errors.ProgrammerError("No iallocator or remote node")
12144 return ResultWithJobs(jobs)
12147 def _SetOpEarlyRelease(early_release, op):
12148 """Sets C{early_release} flag on opcodes if available.
12152 op.early_release = early_release
12153 except AttributeError:
12154 assert not isinstance(op, opcodes.OpInstanceReplaceDisks)
12159 def _NodeEvacDest(use_nodes, group, nodes):
12160 """Returns group or nodes depending on caller's choice.
12164 return utils.CommaJoin(nodes)
12169 def _LoadNodeEvacResult(lu, alloc_result, early_release, use_nodes):
12170 """Unpacks the result of change-group and node-evacuate iallocator requests.
12172 Iallocator modes L{constants.IALLOCATOR_MODE_NODE_EVAC} and
12173 L{constants.IALLOCATOR_MODE_CHG_GROUP}.
12175 @type lu: L{LogicalUnit}
12176 @param lu: Logical unit instance
12177 @type alloc_result: tuple/list
12178 @param alloc_result: Result from iallocator
12179 @type early_release: bool
12180 @param early_release: Whether to release locks early if possible
12181 @type use_nodes: bool
12182 @param use_nodes: Whether to display node names instead of groups
12185 (moved, failed, jobs) = alloc_result
12188 failreason = utils.CommaJoin("%s (%s)" % (name, reason)
12189 for (name, reason) in failed)
12190 lu.LogWarning("Unable to evacuate instances %s", failreason)
12191 raise errors.OpExecError("Unable to evacuate instances %s" % failreason)
12194 lu.LogInfo("Instances to be moved: %s",
12195 utils.CommaJoin("%s (to %s)" %
12196 (name, _NodeEvacDest(use_nodes, group, nodes))
12197 for (name, group, nodes) in moved))
12199 return [map(compat.partial(_SetOpEarlyRelease, early_release),
12200 map(opcodes.OpCode.LoadOpCode, ops))
12204 def _DiskSizeInBytesToMebibytes(lu, size):
12205 """Converts a disk size in bytes to mebibytes.
12207 Warns and rounds up if the size isn't an even multiple of 1 MiB.
12210 (mib, remainder) = divmod(size, 1024 * 1024)
12213 lu.LogWarning("Disk size is not an even multiple of 1 MiB; rounding up"
12214 " to not overwrite existing data (%s bytes will not be"
12215 " wiped)", (1024 * 1024) - remainder)
12221 class LUInstanceGrowDisk(LogicalUnit):
12222 """Grow a disk of an instance.
12225 HPATH = "disk-grow"
12226 HTYPE = constants.HTYPE_INSTANCE
12229 def ExpandNames(self):
12230 self._ExpandAndLockInstance()
12231 self.needed_locks[locking.LEVEL_NODE] = []
12232 self.needed_locks[locking.LEVEL_NODE_RES] = []
12233 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
12234 self.recalculate_locks[locking.LEVEL_NODE_RES] = constants.LOCKS_REPLACE
12236 def DeclareLocks(self, level):
12237 if level == locking.LEVEL_NODE:
12238 self._LockInstancesNodes()
12239 elif level == locking.LEVEL_NODE_RES:
12241 self.needed_locks[locking.LEVEL_NODE_RES] = \
12242 _CopyLockList(self.needed_locks[locking.LEVEL_NODE])
12244 def BuildHooksEnv(self):
12245 """Build hooks env.
12247 This runs on the master, the primary and all the secondaries.
12251 "DISK": self.op.disk,
12252 "AMOUNT": self.op.amount,
12253 "ABSOLUTE": self.op.absolute,
12255 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
12258 def BuildHooksNodes(self):
12259 """Build hooks nodes.
12262 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
12265 def CheckPrereq(self):
12266 """Check prerequisites.
12268 This checks that the instance is in the cluster.
12271 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
12272 assert instance is not None, \
12273 "Cannot retrieve locked instance %s" % self.op.instance_name
12274 nodenames = list(instance.all_nodes)
12275 for node in nodenames:
12276 _CheckNodeOnline(self, node)
12278 self.instance = instance
12280 if instance.disk_template not in constants.DTS_GROWABLE:
12281 raise errors.OpPrereqError("Instance's disk layout does not support"
12282 " growing", errors.ECODE_INVAL)
12284 self.disk = instance.FindDisk(self.op.disk)
12286 if self.op.absolute:
12287 self.target = self.op.amount
12288 self.delta = self.target - self.disk.size
12290 raise errors.OpPrereqError("Requested size (%s) is smaller than "
12291 "current disk size (%s)" %
12292 (utils.FormatUnit(self.target, "h"),
12293 utils.FormatUnit(self.disk.size, "h")),
12294 errors.ECODE_STATE)
12296 self.delta = self.op.amount
12297 self.target = self.disk.size + self.delta
12299 raise errors.OpPrereqError("Requested increment (%s) is negative" %
12300 utils.FormatUnit(self.delta, "h"),
12301 errors.ECODE_INVAL)
12303 if instance.disk_template not in (constants.DT_FILE,
12304 constants.DT_SHARED_FILE,
12306 # TODO: check the free disk space for file, when that feature will be
12308 _CheckNodesFreeDiskPerVG(self, nodenames,
12309 self.disk.ComputeGrowth(self.delta))
12311 def Exec(self, feedback_fn):
12312 """Execute disk grow.
12315 instance = self.instance
12318 assert set([instance.name]) == self.owned_locks(locking.LEVEL_INSTANCE)
12319 assert (self.owned_locks(locking.LEVEL_NODE) ==
12320 self.owned_locks(locking.LEVEL_NODE_RES))
12322 wipe_disks = self.cfg.GetClusterInfo().prealloc_wipe_disks
12324 disks_ok, _ = _AssembleInstanceDisks(self, self.instance, disks=[disk])
12326 raise errors.OpExecError("Cannot activate block device to grow")
12328 feedback_fn("Growing disk %s of instance '%s' by %s to %s" %
12329 (self.op.disk, instance.name,
12330 utils.FormatUnit(self.delta, "h"),
12331 utils.FormatUnit(self.target, "h")))
12333 # First run all grow ops in dry-run mode
12334 for node in instance.all_nodes:
12335 self.cfg.SetDiskID(disk, node)
12336 result = self.rpc.call_blockdev_grow(node, (disk, instance), self.delta,
12338 result.Raise("Dry-run grow request failed to node %s" % node)
12341 # Get disk size from primary node for wiping
12342 result = self.rpc.call_blockdev_getsize(instance.primary_node, [disk])
12343 result.Raise("Failed to retrieve disk size from node '%s'" %
12344 instance.primary_node)
12346 (disk_size_in_bytes, ) = result.payload
12348 if disk_size_in_bytes is None:
12349 raise errors.OpExecError("Failed to retrieve disk size from primary"
12350 " node '%s'" % instance.primary_node)
12352 old_disk_size = _DiskSizeInBytesToMebibytes(self, disk_size_in_bytes)
12354 assert old_disk_size >= disk.size, \
12355 ("Retrieved disk size too small (got %s, should be at least %s)" %
12356 (old_disk_size, disk.size))
12358 old_disk_size = None
12360 # We know that (as far as we can test) operations across different
12361 # nodes will succeed, time to run it for real on the backing storage
12362 for node in instance.all_nodes:
12363 self.cfg.SetDiskID(disk, node)
12364 result = self.rpc.call_blockdev_grow(node, (disk, instance), self.delta,
12366 result.Raise("Grow request failed to node %s" % node)
12368 # And now execute it for logical storage, on the primary node
12369 node = instance.primary_node
12370 self.cfg.SetDiskID(disk, node)
12371 result = self.rpc.call_blockdev_grow(node, (disk, instance), self.delta,
12373 result.Raise("Grow request failed to node %s" % node)
12375 disk.RecordGrow(self.delta)
12376 self.cfg.Update(instance, feedback_fn)
12378 # Changes have been recorded, release node lock
12379 _ReleaseLocks(self, locking.LEVEL_NODE)
12381 # Downgrade lock while waiting for sync
12382 self.glm.downgrade(locking.LEVEL_INSTANCE)
12384 assert wipe_disks ^ (old_disk_size is None)
12387 assert instance.disks[self.op.disk] == disk
12389 # Wipe newly added disk space
12390 _WipeDisks(self, instance,
12391 disks=[(self.op.disk, disk, old_disk_size)])
12393 if self.op.wait_for_sync:
12394 disk_abort = not _WaitForSync(self, instance, disks=[disk])
12396 self.LogWarning("Disk syncing has not returned a good status; check"
12398 if instance.admin_state != constants.ADMINST_UP:
12399 _SafeShutdownInstanceDisks(self, instance, disks=[disk])
12400 elif instance.admin_state != constants.ADMINST_UP:
12401 self.LogWarning("Not shutting down the disk even if the instance is"
12402 " not supposed to be running because no wait for"
12403 " sync mode was requested")
12405 assert self.owned_locks(locking.LEVEL_NODE_RES)
12406 assert set([instance.name]) == self.owned_locks(locking.LEVEL_INSTANCE)
12409 class LUInstanceQueryData(NoHooksLU):
12410 """Query runtime instance data.
12415 def ExpandNames(self):
12416 self.needed_locks = {}
12418 # Use locking if requested or when non-static information is wanted
12419 if not (self.op.static or self.op.use_locking):
12420 self.LogWarning("Non-static data requested, locks need to be acquired")
12421 self.op.use_locking = True
12423 if self.op.instances or not self.op.use_locking:
12424 # Expand instance names right here
12425 self.wanted_names = _GetWantedInstances(self, self.op.instances)
12427 # Will use acquired locks
12428 self.wanted_names = None
12430 if self.op.use_locking:
12431 self.share_locks = _ShareAll()
12433 if self.wanted_names is None:
12434 self.needed_locks[locking.LEVEL_INSTANCE] = locking.ALL_SET
12436 self.needed_locks[locking.LEVEL_INSTANCE] = self.wanted_names
12438 self.needed_locks[locking.LEVEL_NODEGROUP] = []
12439 self.needed_locks[locking.LEVEL_NODE] = []
12440 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
12442 def DeclareLocks(self, level):
12443 if self.op.use_locking:
12444 if level == locking.LEVEL_NODEGROUP:
12445 owned_instances = self.owned_locks(locking.LEVEL_INSTANCE)
12447 # Lock all groups used by instances optimistically; this requires going
12448 # via the node before it's locked, requiring verification later on
12449 self.needed_locks[locking.LEVEL_NODEGROUP] = \
12450 frozenset(group_uuid
12451 for instance_name in owned_instances
12453 self.cfg.GetInstanceNodeGroups(instance_name))
12455 elif level == locking.LEVEL_NODE:
12456 self._LockInstancesNodes()
12458 def CheckPrereq(self):
12459 """Check prerequisites.
12461 This only checks the optional instance list against the existing names.
12464 owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE))
12465 owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP))
12466 owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE))
12468 if self.wanted_names is None:
12469 assert self.op.use_locking, "Locking was not used"
12470 self.wanted_names = owned_instances
12472 instances = dict(self.cfg.GetMultiInstanceInfo(self.wanted_names))
12474 if self.op.use_locking:
12475 _CheckInstancesNodeGroups(self.cfg, instances, owned_groups, owned_nodes,
12478 assert not (owned_instances or owned_groups or owned_nodes)
12480 self.wanted_instances = instances.values()
12482 def _ComputeBlockdevStatus(self, node, instance, dev):
12483 """Returns the status of a block device
12486 if self.op.static or not node:
12489 self.cfg.SetDiskID(dev, node)
12491 result = self.rpc.call_blockdev_find(node, dev)
12495 result.Raise("Can't compute disk status for %s" % instance.name)
12497 status = result.payload
12501 return (status.dev_path, status.major, status.minor,
12502 status.sync_percent, status.estimated_time,
12503 status.is_degraded, status.ldisk_status)
12505 def _ComputeDiskStatus(self, instance, snode, dev):
12506 """Compute block device status.
12509 (anno_dev,) = _AnnotateDiskParams(instance, [dev], self.cfg)
12511 return self._ComputeDiskStatusInner(instance, snode, anno_dev)
12513 def _ComputeDiskStatusInner(self, instance, snode, dev):
12514 """Compute block device status.
12516 @attention: The device has to be annotated already.
12519 if dev.dev_type in constants.LDS_DRBD:
12520 # we change the snode then (otherwise we use the one passed in)
12521 if dev.logical_id[0] == instance.primary_node:
12522 snode = dev.logical_id[1]
12524 snode = dev.logical_id[0]
12526 dev_pstatus = self._ComputeBlockdevStatus(instance.primary_node,
12528 dev_sstatus = self._ComputeBlockdevStatus(snode, instance, dev)
12531 dev_children = map(compat.partial(self._ComputeDiskStatusInner,
12538 "iv_name": dev.iv_name,
12539 "dev_type": dev.dev_type,
12540 "logical_id": dev.logical_id,
12541 "physical_id": dev.physical_id,
12542 "pstatus": dev_pstatus,
12543 "sstatus": dev_sstatus,
12544 "children": dev_children,
12549 def Exec(self, feedback_fn):
12550 """Gather and return data"""
12553 cluster = self.cfg.GetClusterInfo()
12555 node_names = itertools.chain(*(i.all_nodes for i in self.wanted_instances))
12556 nodes = dict(self.cfg.GetMultiNodeInfo(node_names))
12558 groups = dict(self.cfg.GetMultiNodeGroupInfo(node.group
12559 for node in nodes.values()))
12561 group2name_fn = lambda uuid: groups[uuid].name
12563 for instance in self.wanted_instances:
12564 pnode = nodes[instance.primary_node]
12566 if self.op.static or pnode.offline:
12567 remote_state = None
12569 self.LogWarning("Primary node %s is marked offline, returning static"
12570 " information only for instance %s" %
12571 (pnode.name, instance.name))
12573 remote_info = self.rpc.call_instance_info(instance.primary_node,
12575 instance.hypervisor)
12576 remote_info.Raise("Error checking node %s" % instance.primary_node)
12577 remote_info = remote_info.payload
12578 if remote_info and "state" in remote_info:
12579 remote_state = "up"
12581 if instance.admin_state == constants.ADMINST_UP:
12582 remote_state = "down"
12584 remote_state = instance.admin_state
12586 disks = map(compat.partial(self._ComputeDiskStatus, instance, None),
12589 snodes_group_uuids = [nodes[snode_name].group
12590 for snode_name in instance.secondary_nodes]
12592 result[instance.name] = {
12593 "name": instance.name,
12594 "config_state": instance.admin_state,
12595 "run_state": remote_state,
12596 "pnode": instance.primary_node,
12597 "pnode_group_uuid": pnode.group,
12598 "pnode_group_name": group2name_fn(pnode.group),
12599 "snodes": instance.secondary_nodes,
12600 "snodes_group_uuids": snodes_group_uuids,
12601 "snodes_group_names": map(group2name_fn, snodes_group_uuids),
12603 # this happens to be the same format used for hooks
12604 "nics": _NICListToTuple(self, instance.nics),
12605 "disk_template": instance.disk_template,
12607 "hypervisor": instance.hypervisor,
12608 "network_port": instance.network_port,
12609 "hv_instance": instance.hvparams,
12610 "hv_actual": cluster.FillHV(instance, skip_globals=True),
12611 "be_instance": instance.beparams,
12612 "be_actual": cluster.FillBE(instance),
12613 "os_instance": instance.osparams,
12614 "os_actual": cluster.SimpleFillOS(instance.os, instance.osparams),
12615 "serial_no": instance.serial_no,
12616 "mtime": instance.mtime,
12617 "ctime": instance.ctime,
12618 "uuid": instance.uuid,
12624 def PrepareContainerMods(mods, private_fn):
12625 """Prepares a list of container modifications by adding a private data field.
12627 @type mods: list of tuples; (operation, index, parameters)
12628 @param mods: List of modifications
12629 @type private_fn: callable or None
12630 @param private_fn: Callable for constructing a private data field for a
12635 if private_fn is None:
12640 return [(op, idx, params, fn()) for (op, idx, params) in mods]
12643 #: Type description for changes as returned by L{ApplyContainerMods}'s
12645 _TApplyContModsCbChanges = \
12646 ht.TMaybeListOf(ht.TAnd(ht.TIsLength(2), ht.TItems([
12647 ht.TNonEmptyString,
12652 def ApplyContainerMods(kind, container, chgdesc, mods,
12653 create_fn, modify_fn, remove_fn):
12654 """Applies descriptions in C{mods} to C{container}.
12657 @param kind: One-word item description
12658 @type container: list
12659 @param container: Container to modify
12660 @type chgdesc: None or list
12661 @param chgdesc: List of applied changes
12663 @param mods: Modifications as returned by L{PrepareContainerMods}
12664 @type create_fn: callable
12665 @param create_fn: Callback for creating a new item (L{constants.DDM_ADD});
12666 receives absolute item index, parameters and private data object as added
12667 by L{PrepareContainerMods}, returns tuple containing new item and changes
12669 @type modify_fn: callable
12670 @param modify_fn: Callback for modifying an existing item
12671 (L{constants.DDM_MODIFY}); receives absolute item index, item, parameters
12672 and private data object as added by L{PrepareContainerMods}, returns
12674 @type remove_fn: callable
12675 @param remove_fn: Callback on removing item; receives absolute item index,
12676 item and private data object as added by L{PrepareContainerMods}
12679 for (op, idx, params, private) in mods:
12682 absidx = len(container) - 1
12684 raise IndexError("Not accepting negative indices other than -1")
12685 elif idx > len(container):
12686 raise IndexError("Got %s index %s, but there are only %s" %
12687 (kind, idx, len(container)))
12693 if op == constants.DDM_ADD:
12694 # Calculate where item will be added
12696 addidx = len(container)
12700 if create_fn is None:
12703 (item, changes) = create_fn(addidx, params, private)
12706 container.append(item)
12709 assert idx <= len(container)
12710 # list.insert does so before the specified index
12711 container.insert(idx, item)
12713 # Retrieve existing item
12715 item = container[absidx]
12717 raise IndexError("Invalid %s index %s" % (kind, idx))
12719 if op == constants.DDM_REMOVE:
12722 if remove_fn is not None:
12723 remove_fn(absidx, item, private)
12725 changes = [("%s/%s" % (kind, absidx), "remove")]
12727 assert container[absidx] == item
12728 del container[absidx]
12729 elif op == constants.DDM_MODIFY:
12730 if modify_fn is not None:
12731 changes = modify_fn(absidx, item, params, private)
12733 raise errors.ProgrammerError("Unhandled operation '%s'" % op)
12735 assert _TApplyContModsCbChanges(changes)
12737 if not (chgdesc is None or changes is None):
12738 chgdesc.extend(changes)
12741 def _UpdateIvNames(base_index, disks):
12742 """Updates the C{iv_name} attribute of disks.
12744 @type disks: list of L{objects.Disk}
12747 for (idx, disk) in enumerate(disks):
12748 disk.iv_name = "disk/%s" % (base_index + idx, )
12751 class _InstNicModPrivate:
12752 """Data structure for network interface modifications.
12754 Used by L{LUInstanceSetParams}.
12757 def __init__(self):
12762 class LUInstanceSetParams(LogicalUnit):
12763 """Modifies an instances's parameters.
12766 HPATH = "instance-modify"
12767 HTYPE = constants.HTYPE_INSTANCE
12771 def _UpgradeDiskNicMods(kind, mods, verify_fn):
12772 assert ht.TList(mods)
12773 assert not mods or len(mods[0]) in (2, 3)
12775 if mods and len(mods[0]) == 2:
12779 for op, params in mods:
12780 if op in (constants.DDM_ADD, constants.DDM_REMOVE):
12781 result.append((op, -1, params))
12785 raise errors.OpPrereqError("Only one %s add or remove operation is"
12786 " supported at a time" % kind,
12787 errors.ECODE_INVAL)
12789 result.append((constants.DDM_MODIFY, op, params))
12791 assert verify_fn(result)
12798 def _CheckMods(kind, mods, key_types, item_fn):
12799 """Ensures requested disk/NIC modifications are valid.
12802 for (op, _, params) in mods:
12803 assert ht.TDict(params)
12805 utils.ForceDictType(params, key_types)
12807 if op == constants.DDM_REMOVE:
12809 raise errors.OpPrereqError("No settings should be passed when"
12810 " removing a %s" % kind,
12811 errors.ECODE_INVAL)
12812 elif op in (constants.DDM_ADD, constants.DDM_MODIFY):
12813 item_fn(op, params)
12815 raise errors.ProgrammerError("Unhandled operation '%s'" % op)
12818 def _VerifyDiskModification(op, params):
12819 """Verifies a disk modification.
12822 if op == constants.DDM_ADD:
12823 mode = params.setdefault(constants.IDISK_MODE, constants.DISK_RDWR)
12824 if mode not in constants.DISK_ACCESS_SET:
12825 raise errors.OpPrereqError("Invalid disk access mode '%s'" % mode,
12826 errors.ECODE_INVAL)
12828 size = params.get(constants.IDISK_SIZE, None)
12830 raise errors.OpPrereqError("Required disk parameter '%s' missing" %
12831 constants.IDISK_SIZE, errors.ECODE_INVAL)
12835 except (TypeError, ValueError), err:
12836 raise errors.OpPrereqError("Invalid disk size parameter: %s" % err,
12837 errors.ECODE_INVAL)
12839 params[constants.IDISK_SIZE] = size
12841 elif op == constants.DDM_MODIFY and constants.IDISK_SIZE in params:
12842 raise errors.OpPrereqError("Disk size change not possible, use"
12843 " grow-disk", errors.ECODE_INVAL)
12846 def _VerifyNicModification(op, params):
12847 """Verifies a network interface modification.
12850 if op in (constants.DDM_ADD, constants.DDM_MODIFY):
12851 ip = params.get(constants.INIC_IP, None)
12852 req_net = params.get(constants.INIC_NETWORK, None)
12853 link = params.get(constants.NIC_LINK, None)
12854 mode = params.get(constants.NIC_MODE, None)
12855 if req_net is not None:
12856 if req_net.lower() == constants.VALUE_NONE:
12857 params[constants.INIC_NETWORK] = None
12859 elif link is not None or mode is not None:
12860 raise errors.OpPrereqError("If network is given"
12861 " mode or link should not",
12862 errors.ECODE_INVAL)
12864 if op == constants.DDM_ADD:
12865 macaddr = params.get(constants.INIC_MAC, None)
12866 if macaddr is None:
12867 params[constants.INIC_MAC] = constants.VALUE_AUTO
12870 if ip.lower() == constants.VALUE_NONE:
12871 params[constants.INIC_IP] = None
12873 if ip.lower() == constants.NIC_IP_POOL:
12874 if op == constants.DDM_ADD and req_net is None:
12875 raise errors.OpPrereqError("If ip=pool, parameter network"
12877 errors.ECODE_INVAL)
12879 if not netutils.IPAddress.IsValid(ip):
12880 raise errors.OpPrereqError("Invalid IP address '%s'" % ip,
12881 errors.ECODE_INVAL)
12883 if constants.INIC_MAC in params:
12884 macaddr = params[constants.INIC_MAC]
12885 if macaddr not in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
12886 macaddr = utils.NormalizeAndValidateMac(macaddr)
12888 if op == constants.DDM_MODIFY and macaddr == constants.VALUE_AUTO:
12889 raise errors.OpPrereqError("'auto' is not a valid MAC address when"
12890 " modifying an existing NIC",
12891 errors.ECODE_INVAL)
12893 def CheckArguments(self):
12894 if not (self.op.nics or self.op.disks or self.op.disk_template or
12895 self.op.hvparams or self.op.beparams or self.op.os_name or
12896 self.op.offline is not None or self.op.runtime_mem):
12897 raise errors.OpPrereqError("No changes submitted", errors.ECODE_INVAL)
12899 if self.op.hvparams:
12900 _CheckGlobalHvParams(self.op.hvparams)
12902 self.op.disks = self._UpgradeDiskNicMods(
12903 "disk", self.op.disks, opcodes.OpInstanceSetParams.TestDiskModifications)
12904 self.op.nics = self._UpgradeDiskNicMods(
12905 "NIC", self.op.nics, opcodes.OpInstanceSetParams.TestNicModifications)
12907 # Check disk modifications
12908 self._CheckMods("disk", self.op.disks, constants.IDISK_PARAMS_TYPES,
12909 self._VerifyDiskModification)
12911 if self.op.disks and self.op.disk_template is not None:
12912 raise errors.OpPrereqError("Disk template conversion and other disk"
12913 " changes not supported at the same time",
12914 errors.ECODE_INVAL)
12916 if (self.op.disk_template and
12917 self.op.disk_template in constants.DTS_INT_MIRROR and
12918 self.op.remote_node is None):
12919 raise errors.OpPrereqError("Changing the disk template to a mirrored"
12920 " one requires specifying a secondary node",
12921 errors.ECODE_INVAL)
12923 # Check NIC modifications
12924 self._CheckMods("NIC", self.op.nics, constants.INIC_PARAMS_TYPES,
12925 self._VerifyNicModification)
12927 def ExpandNames(self):
12928 self._ExpandAndLockInstance()
12929 self.needed_locks[locking.LEVEL_NODEGROUP] = []
12930 # Can't even acquire node locks in shared mode as upcoming changes in
12931 # Ganeti 2.6 will start to modify the node object on disk conversion
12932 self.needed_locks[locking.LEVEL_NODE] = []
12933 self.needed_locks[locking.LEVEL_NODE_RES] = []
12934 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
12935 # Look node group to look up the ipolicy
12936 self.share_locks[locking.LEVEL_NODEGROUP] = 1
12938 def DeclareLocks(self, level):
12939 if level == locking.LEVEL_NODEGROUP:
12940 assert not self.needed_locks[locking.LEVEL_NODEGROUP]
12941 # Acquire locks for the instance's nodegroups optimistically. Needs
12942 # to be verified in CheckPrereq
12943 self.needed_locks[locking.LEVEL_NODEGROUP] = \
12944 self.cfg.GetInstanceNodeGroups(self.op.instance_name)
12945 elif level == locking.LEVEL_NODE:
12946 self._LockInstancesNodes()
12947 if self.op.disk_template and self.op.remote_node:
12948 self.op.remote_node = _ExpandNodeName(self.cfg, self.op.remote_node)
12949 self.needed_locks[locking.LEVEL_NODE].append(self.op.remote_node)
12950 elif level == locking.LEVEL_NODE_RES and self.op.disk_template:
12952 self.needed_locks[locking.LEVEL_NODE_RES] = \
12953 _CopyLockList(self.needed_locks[locking.LEVEL_NODE])
12955 def BuildHooksEnv(self):
12956 """Build hooks env.
12958 This runs on the master, primary and secondaries.
12962 if constants.BE_MINMEM in self.be_new:
12963 args["minmem"] = self.be_new[constants.BE_MINMEM]
12964 if constants.BE_MAXMEM in self.be_new:
12965 args["maxmem"] = self.be_new[constants.BE_MAXMEM]
12966 if constants.BE_VCPUS in self.be_new:
12967 args["vcpus"] = self.be_new[constants.BE_VCPUS]
12968 # TODO: export disk changes. Note: _BuildInstanceHookEnv* don't export disk
12969 # information at all.
12971 if self._new_nics is not None:
12974 for nic in self._new_nics:
12975 n = copy.deepcopy(nic)
12976 nicparams = self.cluster.SimpleFillNIC(n.nicparams)
12977 n.nicparams = nicparams
12978 nics.append(_NICToTuple(self, n))
12980 args["nics"] = nics
12982 env = _BuildInstanceHookEnvByObject(self, self.instance, override=args)
12983 if self.op.disk_template:
12984 env["NEW_DISK_TEMPLATE"] = self.op.disk_template
12985 if self.op.runtime_mem:
12986 env["RUNTIME_MEMORY"] = self.op.runtime_mem
12990 def BuildHooksNodes(self):
12991 """Build hooks nodes.
12994 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
12997 def _PrepareNicModification(self, params, private, old_ip, old_net,
12998 old_params, cluster, pnode):
13000 update_params_dict = dict([(key, params[key])
13001 for key in constants.NICS_PARAMETERS
13004 req_link = update_params_dict.get(constants.NIC_LINK, None)
13005 req_mode = update_params_dict.get(constants.NIC_MODE, None)
13007 new_net = params.get(constants.INIC_NETWORK, old_net)
13008 if new_net is not None:
13009 netparams = self.cfg.GetGroupNetParams(new_net, pnode)
13010 if netparams is None:
13011 raise errors.OpPrereqError("No netparams found for the network"
13012 " %s, probably not connected" % new_net,
13013 errors.ECODE_INVAL)
13014 new_params = dict(netparams)
13016 new_params = _GetUpdatedParams(old_params, update_params_dict)
13018 utils.ForceDictType(new_params, constants.NICS_PARAMETER_TYPES)
13020 new_filled_params = cluster.SimpleFillNIC(new_params)
13021 objects.NIC.CheckParameterSyntax(new_filled_params)
13023 new_mode = new_filled_params[constants.NIC_MODE]
13024 if new_mode == constants.NIC_MODE_BRIDGED:
13025 bridge = new_filled_params[constants.NIC_LINK]
13026 msg = self.rpc.call_bridges_exist(pnode, [bridge]).fail_msg
13028 msg = "Error checking bridges on node '%s': %s" % (pnode, msg)
13030 self.warn.append(msg)
13032 raise errors.OpPrereqError(msg, errors.ECODE_ENVIRON)
13034 elif new_mode == constants.NIC_MODE_ROUTED:
13035 ip = params.get(constants.INIC_IP, old_ip)
13037 raise errors.OpPrereqError("Cannot set the NIC IP address to None"
13038 " on a routed NIC", errors.ECODE_INVAL)
13040 elif new_mode == constants.NIC_MODE_OVS:
13041 # TODO: check OVS link
13042 self.LogInfo("OVS links are currently not checked for correctness")
13044 if constants.INIC_MAC in params:
13045 mac = params[constants.INIC_MAC]
13047 raise errors.OpPrereqError("Cannot unset the NIC MAC address",
13048 errors.ECODE_INVAL)
13049 elif mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
13050 # otherwise generate the MAC address
13051 params[constants.INIC_MAC] = \
13052 self.cfg.GenerateMAC(new_net, self.proc.GetECId())
13054 # or validate/reserve the current one
13056 self.cfg.ReserveMAC(mac, self.proc.GetECId())
13057 except errors.ReservationError:
13058 raise errors.OpPrereqError("MAC address '%s' already in use"
13059 " in cluster" % mac,
13060 errors.ECODE_NOTUNIQUE)
13061 elif new_net != old_net:
13063 def get_net_prefix(net):
13065 uuid = self.cfg.LookupNetwork(net)
13067 nobj = self.cfg.GetNetwork(uuid)
13068 return nobj.mac_prefix
13071 new_prefix = get_net_prefix(new_net)
13072 old_prefix = get_net_prefix(old_net)
13073 if old_prefix != new_prefix:
13074 params[constants.INIC_MAC] = \
13075 self.cfg.GenerateMAC(new_net, self.proc.GetECId())
13077 #if there is a change in nic-network configuration
13078 new_ip = params.get(constants.INIC_IP, old_ip)
13079 if (new_ip, new_net) != (old_ip, old_net):
13082 if new_ip.lower() == constants.NIC_IP_POOL:
13084 new_ip = self.cfg.GenerateIp(new_net, self.proc.GetECId())
13085 except errors.ReservationError:
13086 raise errors.OpPrereqError("Unable to get a free IP"
13087 " from the address pool",
13088 errors.ECODE_STATE)
13089 self.LogInfo("Chose IP %s from pool %s", new_ip, new_net)
13090 params[constants.INIC_IP] = new_ip
13091 elif new_ip != old_ip or new_net != old_net:
13093 self.LogInfo("Reserving IP %s in pool %s", new_ip, new_net)
13094 self.cfg.ReserveIp(new_net, new_ip, self.proc.GetECId())
13095 except errors.ReservationError:
13096 raise errors.OpPrereqError("IP %s not available in network %s" %
13098 errors.ECODE_NOTUNIQUE)
13099 elif new_ip.lower() == constants.NIC_IP_POOL:
13100 raise errors.OpPrereqError("ip=pool, but no network found",
13101 errors.ECODE_INVAL)
13104 if self.op.conflicts_check:
13105 _CheckForConflictingIp(self, new_ip, pnode)
13110 self.cfg.ReleaseIp(old_net, old_ip, self.proc.GetECId())
13111 except errors.AddressPoolError:
13112 logging.warning("Release IP %s not contained in network %s",
13115 # there are no changes in (net, ip) tuple
13116 elif (old_net is not None and
13117 (req_link is not None or req_mode is not None)):
13118 raise errors.OpPrereqError("Not allowed to change link or mode of"
13119 " a NIC that is connected to a network",
13120 errors.ECODE_INVAL)
13122 private.params = new_params
13123 private.filled = new_filled_params
13125 def CheckPrereq(self):
13126 """Check prerequisites.
13128 This only checks the instance list against the existing names.
13131 assert self.op.instance_name in self.owned_locks(locking.LEVEL_INSTANCE)
13132 instance = self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
13134 cluster = self.cluster = self.cfg.GetClusterInfo()
13135 assert self.instance is not None, \
13136 "Cannot retrieve locked instance %s" % self.op.instance_name
13138 pnode = instance.primary_node
13139 assert pnode in self.owned_locks(locking.LEVEL_NODE)
13140 nodelist = list(instance.all_nodes)
13141 pnode_info = self.cfg.GetNodeInfo(pnode)
13142 self.diskparams = self.cfg.GetInstanceDiskParams(instance)
13144 #_CheckInstanceNodeGroups(self.cfg, self.op.instance_name, owned_groups)
13145 assert pnode_info.group in self.owned_locks(locking.LEVEL_NODEGROUP)
13146 group_info = self.cfg.GetNodeGroup(pnode_info.group)
13148 # dictionary with instance information after the modification
13151 # Prepare disk/NIC modifications
13152 self.diskmod = PrepareContainerMods(self.op.disks, None)
13153 self.nicmod = PrepareContainerMods(self.op.nics, _InstNicModPrivate)
13156 if self.op.os_name and not self.op.force:
13157 _CheckNodeHasOS(self, instance.primary_node, self.op.os_name,
13158 self.op.force_variant)
13159 instance_os = self.op.os_name
13161 instance_os = instance.os
13163 assert not (self.op.disk_template and self.op.disks), \
13164 "Can't modify disk template and apply disk changes at the same time"
13166 if self.op.disk_template:
13167 if instance.disk_template == self.op.disk_template:
13168 raise errors.OpPrereqError("Instance already has disk template %s" %
13169 instance.disk_template, errors.ECODE_INVAL)
13171 if (instance.disk_template,
13172 self.op.disk_template) not in self._DISK_CONVERSIONS:
13173 raise errors.OpPrereqError("Unsupported disk template conversion from"
13174 " %s to %s" % (instance.disk_template,
13175 self.op.disk_template),
13176 errors.ECODE_INVAL)
13177 _CheckInstanceState(self, instance, INSTANCE_DOWN,
13178 msg="cannot change disk template")
13179 if self.op.disk_template in constants.DTS_INT_MIRROR:
13180 if self.op.remote_node == pnode:
13181 raise errors.OpPrereqError("Given new secondary node %s is the same"
13182 " as the primary node of the instance" %
13183 self.op.remote_node, errors.ECODE_STATE)
13184 _CheckNodeOnline(self, self.op.remote_node)
13185 _CheckNodeNotDrained(self, self.op.remote_node)
13186 # FIXME: here we assume that the old instance type is DT_PLAIN
13187 assert instance.disk_template == constants.DT_PLAIN
13188 disks = [{constants.IDISK_SIZE: d.size,
13189 constants.IDISK_VG: d.logical_id[0]}
13190 for d in instance.disks]
13191 required = _ComputeDiskSizePerVG(self.op.disk_template, disks)
13192 _CheckNodesFreeDiskPerVG(self, [self.op.remote_node], required)
13194 snode_info = self.cfg.GetNodeInfo(self.op.remote_node)
13195 snode_group = self.cfg.GetNodeGroup(snode_info.group)
13196 ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster,
13198 _CheckTargetNodeIPolicy(self, ipolicy, instance, snode_info,
13199 ignore=self.op.ignore_ipolicy)
13200 if pnode_info.group != snode_info.group:
13201 self.LogWarning("The primary and secondary nodes are in two"
13202 " different node groups; the disk parameters"
13203 " from the first disk's node group will be"
13206 # hvparams processing
13207 if self.op.hvparams:
13208 hv_type = instance.hypervisor
13209 i_hvdict = _GetUpdatedParams(instance.hvparams, self.op.hvparams)
13210 utils.ForceDictType(i_hvdict, constants.HVS_PARAMETER_TYPES)
13211 hv_new = cluster.SimpleFillHV(hv_type, instance.os, i_hvdict)
13214 hypervisor.GetHypervisor(hv_type).CheckParameterSyntax(hv_new)
13215 _CheckHVParams(self, nodelist, instance.hypervisor, hv_new)
13216 self.hv_proposed = self.hv_new = hv_new # the new actual values
13217 self.hv_inst = i_hvdict # the new dict (without defaults)
13219 self.hv_proposed = cluster.SimpleFillHV(instance.hypervisor, instance.os,
13221 self.hv_new = self.hv_inst = {}
13223 # beparams processing
13224 if self.op.beparams:
13225 i_bedict = _GetUpdatedParams(instance.beparams, self.op.beparams,
13227 objects.UpgradeBeParams(i_bedict)
13228 utils.ForceDictType(i_bedict, constants.BES_PARAMETER_TYPES)
13229 be_new = cluster.SimpleFillBE(i_bedict)
13230 self.be_proposed = self.be_new = be_new # the new actual values
13231 self.be_inst = i_bedict # the new dict (without defaults)
13233 self.be_new = self.be_inst = {}
13234 self.be_proposed = cluster.SimpleFillBE(instance.beparams)
13235 be_old = cluster.FillBE(instance)
13237 # CPU param validation -- checking every time a parameter is
13238 # changed to cover all cases where either CPU mask or vcpus have
13240 if (constants.BE_VCPUS in self.be_proposed and
13241 constants.HV_CPU_MASK in self.hv_proposed):
13243 utils.ParseMultiCpuMask(self.hv_proposed[constants.HV_CPU_MASK])
13244 # Verify mask is consistent with number of vCPUs. Can skip this
13245 # test if only 1 entry in the CPU mask, which means same mask
13246 # is applied to all vCPUs.
13247 if (len(cpu_list) > 1 and
13248 len(cpu_list) != self.be_proposed[constants.BE_VCPUS]):
13249 raise errors.OpPrereqError("Number of vCPUs [%d] does not match the"
13251 (self.be_proposed[constants.BE_VCPUS],
13252 self.hv_proposed[constants.HV_CPU_MASK]),
13253 errors.ECODE_INVAL)
13255 # Only perform this test if a new CPU mask is given
13256 if constants.HV_CPU_MASK in self.hv_new:
13257 # Calculate the largest CPU number requested
13258 max_requested_cpu = max(map(max, cpu_list))
13259 # Check that all of the instance's nodes have enough physical CPUs to
13260 # satisfy the requested CPU mask
13261 _CheckNodesPhysicalCPUs(self, instance.all_nodes,
13262 max_requested_cpu + 1, instance.hypervisor)
13264 # osparams processing
13265 if self.op.osparams:
13266 i_osdict = _GetUpdatedParams(instance.osparams, self.op.osparams)
13267 _CheckOSParams(self, True, nodelist, instance_os, i_osdict)
13268 self.os_inst = i_osdict # the new dict (without defaults)
13274 #TODO(dynmem): do the appropriate check involving MINMEM
13275 if (constants.BE_MAXMEM in self.op.beparams and not self.op.force and
13276 be_new[constants.BE_MAXMEM] > be_old[constants.BE_MAXMEM]):
13277 mem_check_list = [pnode]
13278 if be_new[constants.BE_AUTO_BALANCE]:
13279 # either we changed auto_balance to yes or it was from before
13280 mem_check_list.extend(instance.secondary_nodes)
13281 instance_info = self.rpc.call_instance_info(pnode, instance.name,
13282 instance.hypervisor)
13283 nodeinfo = self.rpc.call_node_info(mem_check_list, None,
13284 [instance.hypervisor])
13285 pninfo = nodeinfo[pnode]
13286 msg = pninfo.fail_msg
13288 # Assume the primary node is unreachable and go ahead
13289 self.warn.append("Can't get info from primary node %s: %s" %
13292 (_, _, (pnhvinfo, )) = pninfo.payload
13293 if not isinstance(pnhvinfo.get("memory_free", None), int):
13294 self.warn.append("Node data from primary node %s doesn't contain"
13295 " free memory information" % pnode)
13296 elif instance_info.fail_msg:
13297 self.warn.append("Can't get instance runtime information: %s" %
13298 instance_info.fail_msg)
13300 if instance_info.payload:
13301 current_mem = int(instance_info.payload["memory"])
13303 # Assume instance not running
13304 # (there is a slight race condition here, but it's not very
13305 # probable, and we have no other way to check)
13306 # TODO: Describe race condition
13308 #TODO(dynmem): do the appropriate check involving MINMEM
13309 miss_mem = (be_new[constants.BE_MAXMEM] - current_mem -
13310 pnhvinfo["memory_free"])
13312 raise errors.OpPrereqError("This change will prevent the instance"
13313 " from starting, due to %d MB of memory"
13314 " missing on its primary node" %
13315 miss_mem, errors.ECODE_NORES)
13317 if be_new[constants.BE_AUTO_BALANCE]:
13318 for node, nres in nodeinfo.items():
13319 if node not in instance.secondary_nodes:
13321 nres.Raise("Can't get info from secondary node %s" % node,
13322 prereq=True, ecode=errors.ECODE_STATE)
13323 (_, _, (nhvinfo, )) = nres.payload
13324 if not isinstance(nhvinfo.get("memory_free", None), int):
13325 raise errors.OpPrereqError("Secondary node %s didn't return free"
13326 " memory information" % node,
13327 errors.ECODE_STATE)
13328 #TODO(dynmem): do the appropriate check involving MINMEM
13329 elif be_new[constants.BE_MAXMEM] > nhvinfo["memory_free"]:
13330 raise errors.OpPrereqError("This change will prevent the instance"
13331 " from failover to its secondary node"
13332 " %s, due to not enough memory" % node,
13333 errors.ECODE_STATE)
13335 if self.op.runtime_mem:
13336 remote_info = self.rpc.call_instance_info(instance.primary_node,
13338 instance.hypervisor)
13339 remote_info.Raise("Error checking node %s" % instance.primary_node)
13340 if not remote_info.payload: # not running already
13341 raise errors.OpPrereqError("Instance %s is not running" %
13342 instance.name, errors.ECODE_STATE)
13344 current_memory = remote_info.payload["memory"]
13345 if (not self.op.force and
13346 (self.op.runtime_mem > self.be_proposed[constants.BE_MAXMEM] or
13347 self.op.runtime_mem < self.be_proposed[constants.BE_MINMEM])):
13348 raise errors.OpPrereqError("Instance %s must have memory between %d"
13349 " and %d MB of memory unless --force is"
13352 self.be_proposed[constants.BE_MINMEM],
13353 self.be_proposed[constants.BE_MAXMEM]),
13354 errors.ECODE_INVAL)
13356 delta = self.op.runtime_mem - current_memory
13358 _CheckNodeFreeMemory(self, instance.primary_node,
13359 "ballooning memory for instance %s" %
13360 instance.name, delta, instance.hypervisor)
13362 if self.op.disks and instance.disk_template == constants.DT_DISKLESS:
13363 raise errors.OpPrereqError("Disk operations not supported for"
13364 " diskless instances", errors.ECODE_INVAL)
13366 def _PrepareNicCreate(_, params, private):
13367 self._PrepareNicModification(params, private, None, None,
13368 {}, cluster, pnode)
13369 return (None, None)
13371 def _PrepareNicMod(_, nic, params, private):
13372 self._PrepareNicModification(params, private, nic.ip, nic.network,
13373 nic.nicparams, cluster, pnode)
13376 def _PrepareNicRemove(_, params, __):
13378 net = params.network
13379 if net is not None and ip is not None:
13380 self.cfg.ReleaseIp(net, ip, self.proc.GetECId())
13382 # Verify NIC changes (operating on copy)
13383 nics = instance.nics[:]
13384 ApplyContainerMods("NIC", nics, None, self.nicmod,
13385 _PrepareNicCreate, _PrepareNicMod, _PrepareNicRemove)
13386 if len(nics) > constants.MAX_NICS:
13387 raise errors.OpPrereqError("Instance has too many network interfaces"
13388 " (%d), cannot add more" % constants.MAX_NICS,
13389 errors.ECODE_STATE)
13391 # Verify disk changes (operating on a copy)
13392 disks = instance.disks[:]
13393 ApplyContainerMods("disk", disks, None, self.diskmod, None, None, None)
13394 if len(disks) > constants.MAX_DISKS:
13395 raise errors.OpPrereqError("Instance has too many disks (%d), cannot add"
13396 " more" % constants.MAX_DISKS,
13397 errors.ECODE_STATE)
13398 disk_sizes = [disk.size for disk in instance.disks]
13399 disk_sizes.extend(params["size"] for (op, idx, params, private) in
13400 self.diskmod if op == constants.DDM_ADD)
13401 ispec[constants.ISPEC_DISK_COUNT] = len(disk_sizes)
13402 ispec[constants.ISPEC_DISK_SIZE] = disk_sizes
13404 if self.op.offline is not None and self.op.offline:
13405 _CheckInstanceState(self, instance, CAN_CHANGE_INSTANCE_OFFLINE,
13406 msg="can't change to offline")
13408 # Pre-compute NIC changes (necessary to use result in hooks)
13409 self._nic_chgdesc = []
13411 # Operate on copies as this is still in prereq
13412 nics = [nic.Copy() for nic in instance.nics]
13413 ApplyContainerMods("NIC", nics, self._nic_chgdesc, self.nicmod,
13414 self._CreateNewNic, self._ApplyNicMods, None)
13415 self._new_nics = nics
13416 ispec[constants.ISPEC_NIC_COUNT] = len(self._new_nics)
13418 self._new_nics = None
13419 ispec[constants.ISPEC_NIC_COUNT] = len(instance.nics)
13421 if not self.op.ignore_ipolicy:
13422 ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster,
13425 # Fill ispec with backend parameters
13426 ispec[constants.ISPEC_SPINDLE_USE] = \
13427 self.be_new.get(constants.BE_SPINDLE_USE, None)
13428 ispec[constants.ISPEC_CPU_COUNT] = self.be_new.get(constants.BE_VCPUS,
13431 # Copy ispec to verify parameters with min/max values separately
13432 ispec_max = ispec.copy()
13433 ispec_max[constants.ISPEC_MEM_SIZE] = \
13434 self.be_new.get(constants.BE_MAXMEM, None)
13435 res_max = _ComputeIPolicyInstanceSpecViolation(ipolicy, ispec_max)
13436 ispec_min = ispec.copy()
13437 ispec_min[constants.ISPEC_MEM_SIZE] = \
13438 self.be_new.get(constants.BE_MINMEM, None)
13439 res_min = _ComputeIPolicyInstanceSpecViolation(ipolicy, ispec_min)
13441 if (res_max or res_min):
13442 # FIXME: Improve error message by including information about whether
13443 # the upper or lower limit of the parameter fails the ipolicy.
13444 msg = ("Instance allocation to group %s (%s) violates policy: %s" %
13445 (group_info, group_info.name,
13446 utils.CommaJoin(set(res_max + res_min))))
13447 raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
13449 def _ConvertPlainToDrbd(self, feedback_fn):
13450 """Converts an instance from plain to drbd.
13453 feedback_fn("Converting template to drbd")
13454 instance = self.instance
13455 pnode = instance.primary_node
13456 snode = self.op.remote_node
13458 assert instance.disk_template == constants.DT_PLAIN
13460 # create a fake disk info for _GenerateDiskTemplate
13461 disk_info = [{constants.IDISK_SIZE: d.size, constants.IDISK_MODE: d.mode,
13462 constants.IDISK_VG: d.logical_id[0]}
13463 for d in instance.disks]
13464 new_disks = _GenerateDiskTemplate(self, self.op.disk_template,
13465 instance.name, pnode, [snode],
13466 disk_info, None, None, 0, feedback_fn,
13468 anno_disks = rpc.AnnotateDiskParams(constants.DT_DRBD8, new_disks,
13470 info = _GetInstanceInfoText(instance)
13471 feedback_fn("Creating additional volumes...")
13472 # first, create the missing data and meta devices
13473 for disk in anno_disks:
13474 # unfortunately this is... not too nice
13475 _CreateSingleBlockDev(self, pnode, instance, disk.children[1],
13477 for child in disk.children:
13478 _CreateSingleBlockDev(self, snode, instance, child, info, True)
13479 # at this stage, all new LVs have been created, we can rename the
13481 feedback_fn("Renaming original volumes...")
13482 rename_list = [(o, n.children[0].logical_id)
13483 for (o, n) in zip(instance.disks, new_disks)]
13484 result = self.rpc.call_blockdev_rename(pnode, rename_list)
13485 result.Raise("Failed to rename original LVs")
13487 feedback_fn("Initializing DRBD devices...")
13488 # all child devices are in place, we can now create the DRBD devices
13489 for disk in anno_disks:
13490 for node in [pnode, snode]:
13491 f_create = node == pnode
13492 _CreateSingleBlockDev(self, node, instance, disk, info, f_create)
13494 # at this point, the instance has been modified
13495 instance.disk_template = constants.DT_DRBD8
13496 instance.disks = new_disks
13497 self.cfg.Update(instance, feedback_fn)
13499 # Release node locks while waiting for sync
13500 _ReleaseLocks(self, locking.LEVEL_NODE)
13502 # disks are created, waiting for sync
13503 disk_abort = not _WaitForSync(self, instance,
13504 oneshot=not self.op.wait_for_sync)
13506 raise errors.OpExecError("There are some degraded disks for"
13507 " this instance, please cleanup manually")
13509 # Node resource locks will be released by caller
13511 def _ConvertDrbdToPlain(self, feedback_fn):
13512 """Converts an instance from drbd to plain.
13515 instance = self.instance
13517 assert len(instance.secondary_nodes) == 1
13518 assert instance.disk_template == constants.DT_DRBD8
13520 pnode = instance.primary_node
13521 snode = instance.secondary_nodes[0]
13522 feedback_fn("Converting template to plain")
13524 old_disks = _AnnotateDiskParams(instance, instance.disks, self.cfg)
13525 new_disks = [d.children[0] for d in instance.disks]
13527 # copy over size and mode
13528 for parent, child in zip(old_disks, new_disks):
13529 child.size = parent.size
13530 child.mode = parent.mode
13532 # this is a DRBD disk, return its port to the pool
13533 # NOTE: this must be done right before the call to cfg.Update!
13534 for disk in old_disks:
13535 tcp_port = disk.logical_id[2]
13536 self.cfg.AddTcpUdpPort(tcp_port)
13538 # update instance structure
13539 instance.disks = new_disks
13540 instance.disk_template = constants.DT_PLAIN
13541 self.cfg.Update(instance, feedback_fn)
13543 # Release locks in case removing disks takes a while
13544 _ReleaseLocks(self, locking.LEVEL_NODE)
13546 feedback_fn("Removing volumes on the secondary node...")
13547 for disk in old_disks:
13548 self.cfg.SetDiskID(disk, snode)
13549 msg = self.rpc.call_blockdev_remove(snode, disk).fail_msg
13551 self.LogWarning("Could not remove block device %s on node %s,"
13552 " continuing anyway: %s", disk.iv_name, snode, msg)
13554 feedback_fn("Removing unneeded volumes on the primary node...")
13555 for idx, disk in enumerate(old_disks):
13556 meta = disk.children[1]
13557 self.cfg.SetDiskID(meta, pnode)
13558 msg = self.rpc.call_blockdev_remove(pnode, meta).fail_msg
13560 self.LogWarning("Could not remove metadata for disk %d on node %s,"
13561 " continuing anyway: %s", idx, pnode, msg)
13563 def _CreateNewDisk(self, idx, params, _):
13564 """Creates a new disk.
13567 instance = self.instance
13570 if instance.disk_template in constants.DTS_FILEBASED:
13571 (file_driver, file_path) = instance.disks[0].logical_id
13572 file_path = os.path.dirname(file_path)
13574 file_driver = file_path = None
13577 _GenerateDiskTemplate(self, instance.disk_template, instance.name,
13578 instance.primary_node, instance.secondary_nodes,
13579 [params], file_path, file_driver, idx,
13580 self.Log, self.diskparams)[0]
13582 info = _GetInstanceInfoText(instance)
13584 logging.info("Creating volume %s for instance %s",
13585 disk.iv_name, instance.name)
13586 # Note: this needs to be kept in sync with _CreateDisks
13588 for node in instance.all_nodes:
13589 f_create = (node == instance.primary_node)
13591 _CreateBlockDev(self, node, instance, disk, f_create, info, f_create)
13592 except errors.OpExecError, err:
13593 self.LogWarning("Failed to create volume %s (%s) on node '%s': %s",
13594 disk.iv_name, disk, node, err)
13597 ("disk/%d" % idx, "add:size=%s,mode=%s" % (disk.size, disk.mode)),
13601 def _ModifyDisk(idx, disk, params, _):
13602 """Modifies a disk.
13605 disk.mode = params[constants.IDISK_MODE]
13608 ("disk.mode/%d" % idx, disk.mode),
13611 def _RemoveDisk(self, idx, root, _):
13615 (anno_disk,) = _AnnotateDiskParams(self.instance, [root], self.cfg)
13616 for node, disk in anno_disk.ComputeNodeTree(self.instance.primary_node):
13617 self.cfg.SetDiskID(disk, node)
13618 msg = self.rpc.call_blockdev_remove(node, disk).fail_msg
13620 self.LogWarning("Could not remove disk/%d on node '%s': %s,"
13621 " continuing anyway", idx, node, msg)
13623 # if this is a DRBD disk, return its port to the pool
13624 if root.dev_type in constants.LDS_DRBD:
13625 self.cfg.AddTcpUdpPort(root.logical_id[2])
13628 def _CreateNewNic(idx, params, private):
13629 """Creates data structure for a new network interface.
13632 mac = params[constants.INIC_MAC]
13633 ip = params.get(constants.INIC_IP, None)
13634 net = params.get(constants.INIC_NETWORK, None)
13635 #TODO: not private.filled?? can a nic have no nicparams??
13636 nicparams = private.filled
13638 return (objects.NIC(mac=mac, ip=ip, network=net, nicparams=nicparams), [
13640 "add:mac=%s,ip=%s,mode=%s,link=%s,network=%s" %
13641 (mac, ip, private.filled[constants.NIC_MODE],
13642 private.filled[constants.NIC_LINK],
13647 def _ApplyNicMods(idx, nic, params, private):
13648 """Modifies a network interface.
13653 for key in [constants.INIC_MAC, constants.INIC_IP, constants.INIC_NETWORK]:
13655 changes.append(("nic.%s/%d" % (key, idx), params[key]))
13656 setattr(nic, key, params[key])
13659 nic.nicparams = private.filled
13661 for (key, val) in nic.nicparams.items():
13662 changes.append(("nic.%s/%d" % (key, idx), val))
13666 def Exec(self, feedback_fn):
13667 """Modifies an instance.
13669 All parameters take effect only at the next restart of the instance.
13672 # Process here the warnings from CheckPrereq, as we don't have a
13673 # feedback_fn there.
13674 # TODO: Replace with self.LogWarning
13675 for warn in self.warn:
13676 feedback_fn("WARNING: %s" % warn)
13678 assert ((self.op.disk_template is None) ^
13679 bool(self.owned_locks(locking.LEVEL_NODE_RES))), \
13680 "Not owning any node resource locks"
13683 instance = self.instance
13686 if self.op.runtime_mem:
13687 rpcres = self.rpc.call_instance_balloon_memory(instance.primary_node,
13689 self.op.runtime_mem)
13690 rpcres.Raise("Cannot modify instance runtime memory")
13691 result.append(("runtime_memory", self.op.runtime_mem))
13693 # Apply disk changes
13694 ApplyContainerMods("disk", instance.disks, result, self.diskmod,
13695 self._CreateNewDisk, self._ModifyDisk, self._RemoveDisk)
13696 _UpdateIvNames(0, instance.disks)
13698 if self.op.disk_template:
13700 check_nodes = set(instance.all_nodes)
13701 if self.op.remote_node:
13702 check_nodes.add(self.op.remote_node)
13703 for level in [locking.LEVEL_NODE, locking.LEVEL_NODE_RES]:
13704 owned = self.owned_locks(level)
13705 assert not (check_nodes - owned), \
13706 ("Not owning the correct locks, owning %r, expected at least %r" %
13707 (owned, check_nodes))
13709 r_shut = _ShutdownInstanceDisks(self, instance)
13711 raise errors.OpExecError("Cannot shutdown instance disks, unable to"
13712 " proceed with disk template conversion")
13713 mode = (instance.disk_template, self.op.disk_template)
13715 self._DISK_CONVERSIONS[mode](self, feedback_fn)
13717 self.cfg.ReleaseDRBDMinors(instance.name)
13719 result.append(("disk_template", self.op.disk_template))
13721 assert instance.disk_template == self.op.disk_template, \
13722 ("Expected disk template '%s', found '%s'" %
13723 (self.op.disk_template, instance.disk_template))
13725 # Release node and resource locks if there are any (they might already have
13726 # been released during disk conversion)
13727 _ReleaseLocks(self, locking.LEVEL_NODE)
13728 _ReleaseLocks(self, locking.LEVEL_NODE_RES)
13730 # Apply NIC changes
13731 if self._new_nics is not None:
13732 instance.nics = self._new_nics
13733 result.extend(self._nic_chgdesc)
13736 if self.op.hvparams:
13737 instance.hvparams = self.hv_inst
13738 for key, val in self.op.hvparams.iteritems():
13739 result.append(("hv/%s" % key, val))
13742 if self.op.beparams:
13743 instance.beparams = self.be_inst
13744 for key, val in self.op.beparams.iteritems():
13745 result.append(("be/%s" % key, val))
13748 if self.op.os_name:
13749 instance.os = self.op.os_name
13752 if self.op.osparams:
13753 instance.osparams = self.os_inst
13754 for key, val in self.op.osparams.iteritems():
13755 result.append(("os/%s" % key, val))
13757 if self.op.offline is None:
13760 elif self.op.offline:
13761 # Mark instance as offline
13762 self.cfg.MarkInstanceOffline(instance.name)
13763 result.append(("admin_state", constants.ADMINST_OFFLINE))
13765 # Mark instance as online, but stopped
13766 self.cfg.MarkInstanceDown(instance.name)
13767 result.append(("admin_state", constants.ADMINST_DOWN))
13769 self.cfg.Update(instance, feedback_fn, self.proc.GetECId())
13771 assert not (self.owned_locks(locking.LEVEL_NODE_RES) or
13772 self.owned_locks(locking.LEVEL_NODE)), \
13773 "All node locks should have been released by now"
13777 _DISK_CONVERSIONS = {
13778 (constants.DT_PLAIN, constants.DT_DRBD8): _ConvertPlainToDrbd,
13779 (constants.DT_DRBD8, constants.DT_PLAIN): _ConvertDrbdToPlain,
13783 class LUInstanceChangeGroup(LogicalUnit):
13784 HPATH = "instance-change-group"
13785 HTYPE = constants.HTYPE_INSTANCE
13788 def ExpandNames(self):
13789 self.share_locks = _ShareAll()
13791 self.needed_locks = {
13792 locking.LEVEL_NODEGROUP: [],
13793 locking.LEVEL_NODE: [],
13794 locking.LEVEL_NODE_ALLOC: locking.ALL_SET,
13797 self._ExpandAndLockInstance()
13799 if self.op.target_groups:
13800 self.req_target_uuids = map(self.cfg.LookupNodeGroup,
13801 self.op.target_groups)
13803 self.req_target_uuids = None
13805 self.op.iallocator = _GetDefaultIAllocator(self.cfg, self.op.iallocator)
13807 def DeclareLocks(self, level):
13808 if level == locking.LEVEL_NODEGROUP:
13809 assert not self.needed_locks[locking.LEVEL_NODEGROUP]
13811 if self.req_target_uuids:
13812 lock_groups = set(self.req_target_uuids)
13814 # Lock all groups used by instance optimistically; this requires going
13815 # via the node before it's locked, requiring verification later on
13816 instance_groups = self.cfg.GetInstanceNodeGroups(self.op.instance_name)
13817 lock_groups.update(instance_groups)
13819 # No target groups, need to lock all of them
13820 lock_groups = locking.ALL_SET
13822 self.needed_locks[locking.LEVEL_NODEGROUP] = lock_groups
13824 elif level == locking.LEVEL_NODE:
13825 if self.req_target_uuids:
13826 # Lock all nodes used by instances
13827 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
13828 self._LockInstancesNodes()
13830 # Lock all nodes in all potential target groups
13831 lock_groups = (frozenset(self.owned_locks(locking.LEVEL_NODEGROUP)) -
13832 self.cfg.GetInstanceNodeGroups(self.op.instance_name))
13833 member_nodes = [node_name
13834 for group in lock_groups
13835 for node_name in self.cfg.GetNodeGroup(group).members]
13836 self.needed_locks[locking.LEVEL_NODE].extend(member_nodes)
13838 # Lock all nodes as all groups are potential targets
13839 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
13841 def CheckPrereq(self):
13842 owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE))
13843 owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP))
13844 owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE))
13846 assert (self.req_target_uuids is None or
13847 owned_groups.issuperset(self.req_target_uuids))
13848 assert owned_instances == set([self.op.instance_name])
13850 # Get instance information
13851 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
13853 # Check if node groups for locked instance are still correct
13854 assert owned_nodes.issuperset(self.instance.all_nodes), \
13855 ("Instance %s's nodes changed while we kept the lock" %
13856 self.op.instance_name)
13858 inst_groups = _CheckInstanceNodeGroups(self.cfg, self.op.instance_name,
13861 if self.req_target_uuids:
13862 # User requested specific target groups
13863 self.target_uuids = frozenset(self.req_target_uuids)
13865 # All groups except those used by the instance are potential targets
13866 self.target_uuids = owned_groups - inst_groups
13868 conflicting_groups = self.target_uuids & inst_groups
13869 if conflicting_groups:
13870 raise errors.OpPrereqError("Can't use group(s) '%s' as targets, they are"
13871 " used by the instance '%s'" %
13872 (utils.CommaJoin(conflicting_groups),
13873 self.op.instance_name),
13874 errors.ECODE_INVAL)
13876 if not self.target_uuids:
13877 raise errors.OpPrereqError("There are no possible target groups",
13878 errors.ECODE_INVAL)
13880 def BuildHooksEnv(self):
13881 """Build hooks env.
13884 assert self.target_uuids
13887 "TARGET_GROUPS": " ".join(self.target_uuids),
13890 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
13894 def BuildHooksNodes(self):
13895 """Build hooks nodes.
13898 mn = self.cfg.GetMasterNode()
13899 return ([mn], [mn])
13901 def Exec(self, feedback_fn):
13902 instances = list(self.owned_locks(locking.LEVEL_INSTANCE))
13904 assert instances == [self.op.instance_name], "Instance not locked"
13906 req = iallocator.IAReqGroupChange(instances=instances,
13907 target_groups=list(self.target_uuids))
13908 ial = iallocator.IAllocator(self.cfg, self.rpc, req)
13910 ial.Run(self.op.iallocator)
13912 if not ial.success:
13913 raise errors.OpPrereqError("Can't compute solution for changing group of"
13914 " instance '%s' using iallocator '%s': %s" %
13915 (self.op.instance_name, self.op.iallocator,
13916 ial.info), errors.ECODE_NORES)
13918 jobs = _LoadNodeEvacResult(self, ial.result, self.op.early_release, False)
13920 self.LogInfo("Iallocator returned %s job(s) for changing group of"
13921 " instance '%s'", len(jobs), self.op.instance_name)
13923 return ResultWithJobs(jobs)
13926 class LUBackupQuery(NoHooksLU):
13927 """Query the exports list
13932 def CheckArguments(self):
13933 self.expq = _ExportQuery(qlang.MakeSimpleFilter("node", self.op.nodes),
13934 ["node", "export"], self.op.use_locking)
13936 def ExpandNames(self):
13937 self.expq.ExpandNames(self)
13939 def DeclareLocks(self, level):
13940 self.expq.DeclareLocks(self, level)
13942 def Exec(self, feedback_fn):
13945 for (node, expname) in self.expq.OldStyleQuery(self):
13946 if expname is None:
13947 result[node] = False
13949 result.setdefault(node, []).append(expname)
13954 class _ExportQuery(_QueryBase):
13955 FIELDS = query.EXPORT_FIELDS
13957 #: The node name is not a unique key for this query
13958 SORT_FIELD = "node"
13960 def ExpandNames(self, lu):
13961 lu.needed_locks = {}
13963 # The following variables interact with _QueryBase._GetNames
13965 self.wanted = _GetWantedNodes(lu, self.names)
13967 self.wanted = locking.ALL_SET
13969 self.do_locking = self.use_locking
13971 if self.do_locking:
13972 lu.share_locks = _ShareAll()
13973 lu.needed_locks = {
13974 locking.LEVEL_NODE: self.wanted,
13978 lu.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET
13980 def DeclareLocks(self, lu, level):
13983 def _GetQueryData(self, lu):
13984 """Computes the list of nodes and their attributes.
13987 # Locking is not used
13989 assert not (compat.any(lu.glm.is_owned(level)
13990 for level in locking.LEVELS
13991 if level != locking.LEVEL_CLUSTER) or
13992 self.do_locking or self.use_locking)
13994 nodes = self._GetNames(lu, lu.cfg.GetNodeList(), locking.LEVEL_NODE)
13998 for (node, nres) in lu.rpc.call_export_list(nodes).items():
14000 result.append((node, None))
14002 result.extend((node, expname) for expname in nres.payload)
14007 class LUBackupPrepare(NoHooksLU):
14008 """Prepares an instance for an export and returns useful information.
14013 def ExpandNames(self):
14014 self._ExpandAndLockInstance()
14016 def CheckPrereq(self):
14017 """Check prerequisites.
14020 instance_name = self.op.instance_name
14022 self.instance = self.cfg.GetInstanceInfo(instance_name)
14023 assert self.instance is not None, \
14024 "Cannot retrieve locked instance %s" % self.op.instance_name
14025 _CheckNodeOnline(self, self.instance.primary_node)
14027 self._cds = _GetClusterDomainSecret()
14029 def Exec(self, feedback_fn):
14030 """Prepares an instance for an export.
14033 instance = self.instance
14035 if self.op.mode == constants.EXPORT_MODE_REMOTE:
14036 salt = utils.GenerateSecret(8)
14038 feedback_fn("Generating X509 certificate on %s" % instance.primary_node)
14039 result = self.rpc.call_x509_cert_create(instance.primary_node,
14040 constants.RIE_CERT_VALIDITY)
14041 result.Raise("Can't create X509 key and certificate on %s" % result.node)
14043 (name, cert_pem) = result.payload
14045 cert = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM,
14049 "handshake": masterd.instance.ComputeRemoteExportHandshake(self._cds),
14050 "x509_key_name": (name, utils.Sha1Hmac(self._cds, name, salt=salt),
14052 "x509_ca": utils.SignX509Certificate(cert, self._cds, salt),
14058 class LUBackupExport(LogicalUnit):
14059 """Export an instance to an image in the cluster.
14062 HPATH = "instance-export"
14063 HTYPE = constants.HTYPE_INSTANCE
14066 def CheckArguments(self):
14067 """Check the arguments.
14070 self.x509_key_name = self.op.x509_key_name
14071 self.dest_x509_ca_pem = self.op.destination_x509_ca
14073 if self.op.mode == constants.EXPORT_MODE_REMOTE:
14074 if not self.x509_key_name:
14075 raise errors.OpPrereqError("Missing X509 key name for encryption",
14076 errors.ECODE_INVAL)
14078 if not self.dest_x509_ca_pem:
14079 raise errors.OpPrereqError("Missing destination X509 CA",
14080 errors.ECODE_INVAL)
14082 def ExpandNames(self):
14083 self._ExpandAndLockInstance()
14085 # Lock all nodes for local exports
14086 if self.op.mode == constants.EXPORT_MODE_LOCAL:
14087 # FIXME: lock only instance primary and destination node
14089 # Sad but true, for now we have do lock all nodes, as we don't know where
14090 # the previous export might be, and in this LU we search for it and
14091 # remove it from its current node. In the future we could fix this by:
14092 # - making a tasklet to search (share-lock all), then create the
14093 # new one, then one to remove, after
14094 # - removing the removal operation altogether
14095 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
14097 # Allocations should be stopped while this LU runs with node locks, but
14098 # it doesn't have to be exclusive
14099 self.share_locks[locking.LEVEL_NODE_ALLOC] = 1
14100 self.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET
14102 def DeclareLocks(self, level):
14103 """Last minute lock declaration."""
14104 # All nodes are locked anyway, so nothing to do here.
14106 def BuildHooksEnv(self):
14107 """Build hooks env.
14109 This will run on the master, primary node and target node.
14113 "EXPORT_MODE": self.op.mode,
14114 "EXPORT_NODE": self.op.target_node,
14115 "EXPORT_DO_SHUTDOWN": self.op.shutdown,
14116 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
14117 # TODO: Generic function for boolean env variables
14118 "REMOVE_INSTANCE": str(bool(self.op.remove_instance)),
14121 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
14125 def BuildHooksNodes(self):
14126 """Build hooks nodes.
14129 nl = [self.cfg.GetMasterNode(), self.instance.primary_node]
14131 if self.op.mode == constants.EXPORT_MODE_LOCAL:
14132 nl.append(self.op.target_node)
14136 def CheckPrereq(self):
14137 """Check prerequisites.
14139 This checks that the instance and node names are valid.
14142 instance_name = self.op.instance_name
14144 self.instance = self.cfg.GetInstanceInfo(instance_name)
14145 assert self.instance is not None, \
14146 "Cannot retrieve locked instance %s" % self.op.instance_name
14147 _CheckNodeOnline(self, self.instance.primary_node)
14149 if (self.op.remove_instance and
14150 self.instance.admin_state == constants.ADMINST_UP and
14151 not self.op.shutdown):
14152 raise errors.OpPrereqError("Can not remove instance without shutting it"
14153 " down before", errors.ECODE_STATE)
14155 if self.op.mode == constants.EXPORT_MODE_LOCAL:
14156 self.op.target_node = _ExpandNodeName(self.cfg, self.op.target_node)
14157 self.dst_node = self.cfg.GetNodeInfo(self.op.target_node)
14158 assert self.dst_node is not None
14160 _CheckNodeOnline(self, self.dst_node.name)
14161 _CheckNodeNotDrained(self, self.dst_node.name)
14164 self.dest_disk_info = None
14165 self.dest_x509_ca = None
14167 elif self.op.mode == constants.EXPORT_MODE_REMOTE:
14168 self.dst_node = None
14170 if len(self.op.target_node) != len(self.instance.disks):
14171 raise errors.OpPrereqError(("Received destination information for %s"
14172 " disks, but instance %s has %s disks") %
14173 (len(self.op.target_node), instance_name,
14174 len(self.instance.disks)),
14175 errors.ECODE_INVAL)
14177 cds = _GetClusterDomainSecret()
14179 # Check X509 key name
14181 (key_name, hmac_digest, hmac_salt) = self.x509_key_name
14182 except (TypeError, ValueError), err:
14183 raise errors.OpPrereqError("Invalid data for X509 key name: %s" % err,
14184 errors.ECODE_INVAL)
14186 if not utils.VerifySha1Hmac(cds, key_name, hmac_digest, salt=hmac_salt):
14187 raise errors.OpPrereqError("HMAC for X509 key name is wrong",
14188 errors.ECODE_INVAL)
14190 # Load and verify CA
14192 (cert, _) = utils.LoadSignedX509Certificate(self.dest_x509_ca_pem, cds)
14193 except OpenSSL.crypto.Error, err:
14194 raise errors.OpPrereqError("Unable to load destination X509 CA (%s)" %
14195 (err, ), errors.ECODE_INVAL)
14197 (errcode, msg) = utils.VerifyX509Certificate(cert, None, None)
14198 if errcode is not None:
14199 raise errors.OpPrereqError("Invalid destination X509 CA (%s)" %
14200 (msg, ), errors.ECODE_INVAL)
14202 self.dest_x509_ca = cert
14204 # Verify target information
14206 for idx, disk_data in enumerate(self.op.target_node):
14208 (host, port, magic) = \
14209 masterd.instance.CheckRemoteExportDiskInfo(cds, idx, disk_data)
14210 except errors.GenericError, err:
14211 raise errors.OpPrereqError("Target info for disk %s: %s" %
14212 (idx, err), errors.ECODE_INVAL)
14214 disk_info.append((host, port, magic))
14216 assert len(disk_info) == len(self.op.target_node)
14217 self.dest_disk_info = disk_info
14220 raise errors.ProgrammerError("Unhandled export mode %r" %
14223 # instance disk type verification
14224 # TODO: Implement export support for file-based disks
14225 for disk in self.instance.disks:
14226 if disk.dev_type == constants.LD_FILE:
14227 raise errors.OpPrereqError("Export not supported for instances with"
14228 " file-based disks", errors.ECODE_INVAL)
14230 def _CleanupExports(self, feedback_fn):
14231 """Removes exports of current instance from all other nodes.
14233 If an instance in a cluster with nodes A..D was exported to node C, its
14234 exports will be removed from the nodes A, B and D.
14237 assert self.op.mode != constants.EXPORT_MODE_REMOTE
14239 nodelist = self.cfg.GetNodeList()
14240 nodelist.remove(self.dst_node.name)
14242 # on one-node clusters nodelist will be empty after the removal
14243 # if we proceed the backup would be removed because OpBackupQuery
14244 # substitutes an empty list with the full cluster node list.
14245 iname = self.instance.name
14247 feedback_fn("Removing old exports for instance %s" % iname)
14248 exportlist = self.rpc.call_export_list(nodelist)
14249 for node in exportlist:
14250 if exportlist[node].fail_msg:
14252 if iname in exportlist[node].payload:
14253 msg = self.rpc.call_export_remove(node, iname).fail_msg
14255 self.LogWarning("Could not remove older export for instance %s"
14256 " on node %s: %s", iname, node, msg)
14258 def Exec(self, feedback_fn):
14259 """Export an instance to an image in the cluster.
14262 assert self.op.mode in constants.EXPORT_MODES
14264 instance = self.instance
14265 src_node = instance.primary_node
14267 if self.op.shutdown:
14268 # shutdown the instance, but not the disks
14269 feedback_fn("Shutting down instance %s" % instance.name)
14270 result = self.rpc.call_instance_shutdown(src_node, instance,
14271 self.op.shutdown_timeout)
14272 # TODO: Maybe ignore failures if ignore_remove_failures is set
14273 result.Raise("Could not shutdown instance %s on"
14274 " node %s" % (instance.name, src_node))
14276 # set the disks ID correctly since call_instance_start needs the
14277 # correct drbd minor to create the symlinks
14278 for disk in instance.disks:
14279 self.cfg.SetDiskID(disk, src_node)
14281 activate_disks = (instance.admin_state != constants.ADMINST_UP)
14284 # Activate the instance disks if we'exporting a stopped instance
14285 feedback_fn("Activating disks for %s" % instance.name)
14286 _StartInstanceDisks(self, instance, None)
14289 helper = masterd.instance.ExportInstanceHelper(self, feedback_fn,
14292 helper.CreateSnapshots()
14294 if (self.op.shutdown and
14295 instance.admin_state == constants.ADMINST_UP and
14296 not self.op.remove_instance):
14297 assert not activate_disks
14298 feedback_fn("Starting instance %s" % instance.name)
14299 result = self.rpc.call_instance_start(src_node,
14300 (instance, None, None), False)
14301 msg = result.fail_msg
14303 feedback_fn("Failed to start instance: %s" % msg)
14304 _ShutdownInstanceDisks(self, instance)
14305 raise errors.OpExecError("Could not start instance: %s" % msg)
14307 if self.op.mode == constants.EXPORT_MODE_LOCAL:
14308 (fin_resu, dresults) = helper.LocalExport(self.dst_node)
14309 elif self.op.mode == constants.EXPORT_MODE_REMOTE:
14310 connect_timeout = constants.RIE_CONNECT_TIMEOUT
14311 timeouts = masterd.instance.ImportExportTimeouts(connect_timeout)
14313 (key_name, _, _) = self.x509_key_name
14316 OpenSSL.crypto.dump_certificate(OpenSSL.crypto.FILETYPE_PEM,
14319 (fin_resu, dresults) = helper.RemoteExport(self.dest_disk_info,
14320 key_name, dest_ca_pem,
14325 # Check for backwards compatibility
14326 assert len(dresults) == len(instance.disks)
14327 assert compat.all(isinstance(i, bool) for i in dresults), \
14328 "Not all results are boolean: %r" % dresults
14332 feedback_fn("Deactivating disks for %s" % instance.name)
14333 _ShutdownInstanceDisks(self, instance)
14335 if not (compat.all(dresults) and fin_resu):
14338 failures.append("export finalization")
14339 if not compat.all(dresults):
14340 fdsk = utils.CommaJoin(idx for (idx, dsk) in enumerate(dresults)
14342 failures.append("disk export: disk(s) %s" % fdsk)
14344 raise errors.OpExecError("Export failed, errors in %s" %
14345 utils.CommaJoin(failures))
14347 # At this point, the export was successful, we can cleanup/finish
14349 # Remove instance if requested
14350 if self.op.remove_instance:
14351 feedback_fn("Removing instance %s" % instance.name)
14352 _RemoveInstance(self, feedback_fn, instance,
14353 self.op.ignore_remove_failures)
14355 if self.op.mode == constants.EXPORT_MODE_LOCAL:
14356 self._CleanupExports(feedback_fn)
14358 return fin_resu, dresults
14361 class LUBackupRemove(NoHooksLU):
14362 """Remove exports related to the named instance.
14367 def ExpandNames(self):
14368 self.needed_locks = {
14369 # We need all nodes to be locked in order for RemoveExport to work, but
14370 # we don't need to lock the instance itself, as nothing will happen to it
14371 # (and we can remove exports also for a removed instance)
14372 locking.LEVEL_NODE: locking.ALL_SET,
14374 # Removing backups is quick, so blocking allocations is justified
14375 locking.LEVEL_NODE_ALLOC: locking.ALL_SET,
14378 # Allocations should be stopped while this LU runs with node locks, but it
14379 # doesn't have to be exclusive
14380 self.share_locks[locking.LEVEL_NODE_ALLOC] = 1
14382 def Exec(self, feedback_fn):
14383 """Remove any export.
14386 instance_name = self.cfg.ExpandInstanceName(self.op.instance_name)
14387 # If the instance was not found we'll try with the name that was passed in.
14388 # This will only work if it was an FQDN, though.
14390 if not instance_name:
14392 instance_name = self.op.instance_name
14394 locked_nodes = self.owned_locks(locking.LEVEL_NODE)
14395 exportlist = self.rpc.call_export_list(locked_nodes)
14397 for node in exportlist:
14398 msg = exportlist[node].fail_msg
14400 self.LogWarning("Failed to query node %s (continuing): %s", node, msg)
14402 if instance_name in exportlist[node].payload:
14404 result = self.rpc.call_export_remove(node, instance_name)
14405 msg = result.fail_msg
14407 logging.error("Could not remove export for instance %s"
14408 " on node %s: %s", instance_name, node, msg)
14410 if fqdn_warn and not found:
14411 feedback_fn("Export not found. If trying to remove an export belonging"
14412 " to a deleted instance please use its Fully Qualified"
14416 class LUGroupAdd(LogicalUnit):
14417 """Logical unit for creating node groups.
14420 HPATH = "group-add"
14421 HTYPE = constants.HTYPE_GROUP
14424 def ExpandNames(self):
14425 # We need the new group's UUID here so that we can create and acquire the
14426 # corresponding lock. Later, in Exec(), we'll indicate to cfg.AddNodeGroup
14427 # that it should not check whether the UUID exists in the configuration.
14428 self.group_uuid = self.cfg.GenerateUniqueID(self.proc.GetECId())
14429 self.needed_locks = {}
14430 self.add_locks[locking.LEVEL_NODEGROUP] = self.group_uuid
14432 def CheckPrereq(self):
14433 """Check prerequisites.
14435 This checks that the given group name is not an existing node group
14440 existing_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
14441 except errors.OpPrereqError:
14444 raise errors.OpPrereqError("Desired group name '%s' already exists as a"
14445 " node group (UUID: %s)" %
14446 (self.op.group_name, existing_uuid),
14447 errors.ECODE_EXISTS)
14449 if self.op.ndparams:
14450 utils.ForceDictType(self.op.ndparams, constants.NDS_PARAMETER_TYPES)
14452 if self.op.hv_state:
14453 self.new_hv_state = _MergeAndVerifyHvState(self.op.hv_state, None)
14455 self.new_hv_state = None
14457 if self.op.disk_state:
14458 self.new_disk_state = _MergeAndVerifyDiskState(self.op.disk_state, None)
14460 self.new_disk_state = None
14462 if self.op.diskparams:
14463 for templ in constants.DISK_TEMPLATES:
14464 if templ in self.op.diskparams:
14465 utils.ForceDictType(self.op.diskparams[templ],
14466 constants.DISK_DT_TYPES)
14467 self.new_diskparams = self.op.diskparams
14469 utils.VerifyDictOptions(self.new_diskparams, constants.DISK_DT_DEFAULTS)
14470 except errors.OpPrereqError, err:
14471 raise errors.OpPrereqError("While verify diskparams options: %s" % err,
14472 errors.ECODE_INVAL)
14474 self.new_diskparams = {}
14476 if self.op.ipolicy:
14477 cluster = self.cfg.GetClusterInfo()
14478 full_ipolicy = cluster.SimpleFillIPolicy(self.op.ipolicy)
14480 objects.InstancePolicy.CheckParameterSyntax(full_ipolicy, False)
14481 except errors.ConfigurationError, err:
14482 raise errors.OpPrereqError("Invalid instance policy: %s" % err,
14483 errors.ECODE_INVAL)
14485 def BuildHooksEnv(self):
14486 """Build hooks env.
14490 "GROUP_NAME": self.op.group_name,
14493 def BuildHooksNodes(self):
14494 """Build hooks nodes.
14497 mn = self.cfg.GetMasterNode()
14498 return ([mn], [mn])
14500 def Exec(self, feedback_fn):
14501 """Add the node group to the cluster.
14504 group_obj = objects.NodeGroup(name=self.op.group_name, members=[],
14505 uuid=self.group_uuid,
14506 alloc_policy=self.op.alloc_policy,
14507 ndparams=self.op.ndparams,
14508 diskparams=self.new_diskparams,
14509 ipolicy=self.op.ipolicy,
14510 hv_state_static=self.new_hv_state,
14511 disk_state_static=self.new_disk_state)
14513 self.cfg.AddNodeGroup(group_obj, self.proc.GetECId(), check_uuid=False)
14514 del self.remove_locks[locking.LEVEL_NODEGROUP]
14517 class LUGroupAssignNodes(NoHooksLU):
14518 """Logical unit for assigning nodes to groups.
14523 def ExpandNames(self):
14524 # These raise errors.OpPrereqError on their own:
14525 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
14526 self.op.nodes = _GetWantedNodes(self, self.op.nodes)
14528 # We want to lock all the affected nodes and groups. We have readily
14529 # available the list of nodes, and the *destination* group. To gather the
14530 # list of "source" groups, we need to fetch node information later on.
14531 self.needed_locks = {
14532 locking.LEVEL_NODEGROUP: set([self.group_uuid]),
14533 locking.LEVEL_NODE: self.op.nodes,
14536 def DeclareLocks(self, level):
14537 if level == locking.LEVEL_NODEGROUP:
14538 assert len(self.needed_locks[locking.LEVEL_NODEGROUP]) == 1
14540 # Try to get all affected nodes' groups without having the group or node
14541 # lock yet. Needs verification later in the code flow.
14542 groups = self.cfg.GetNodeGroupsFromNodes(self.op.nodes)
14544 self.needed_locks[locking.LEVEL_NODEGROUP].update(groups)
14546 def CheckPrereq(self):
14547 """Check prerequisites.
14550 assert self.needed_locks[locking.LEVEL_NODEGROUP]
14551 assert (frozenset(self.owned_locks(locking.LEVEL_NODE)) ==
14552 frozenset(self.op.nodes))
14554 expected_locks = (set([self.group_uuid]) |
14555 self.cfg.GetNodeGroupsFromNodes(self.op.nodes))
14556 actual_locks = self.owned_locks(locking.LEVEL_NODEGROUP)
14557 if actual_locks != expected_locks:
14558 raise errors.OpExecError("Nodes changed groups since locks were acquired,"
14559 " current groups are '%s', used to be '%s'" %
14560 (utils.CommaJoin(expected_locks),
14561 utils.CommaJoin(actual_locks)))
14563 self.node_data = self.cfg.GetAllNodesInfo()
14564 self.group = self.cfg.GetNodeGroup(self.group_uuid)
14565 instance_data = self.cfg.GetAllInstancesInfo()
14567 if self.group is None:
14568 raise errors.OpExecError("Could not retrieve group '%s' (UUID: %s)" %
14569 (self.op.group_name, self.group_uuid))
14571 (new_splits, previous_splits) = \
14572 self.CheckAssignmentForSplitInstances([(node, self.group_uuid)
14573 for node in self.op.nodes],
14574 self.node_data, instance_data)
14577 fmt_new_splits = utils.CommaJoin(utils.NiceSort(new_splits))
14579 if not self.op.force:
14580 raise errors.OpExecError("The following instances get split by this"
14581 " change and --force was not given: %s" %
14584 self.LogWarning("This operation will split the following instances: %s",
14587 if previous_splits:
14588 self.LogWarning("In addition, these already-split instances continue"
14589 " to be split across groups: %s",
14590 utils.CommaJoin(utils.NiceSort(previous_splits)))
14592 def Exec(self, feedback_fn):
14593 """Assign nodes to a new group.
14596 mods = [(node_name, self.group_uuid) for node_name in self.op.nodes]
14598 self.cfg.AssignGroupNodes(mods)
14601 def CheckAssignmentForSplitInstances(changes, node_data, instance_data):
14602 """Check for split instances after a node assignment.
14604 This method considers a series of node assignments as an atomic operation,
14605 and returns information about split instances after applying the set of
14608 In particular, it returns information about newly split instances, and
14609 instances that were already split, and remain so after the change.
14611 Only instances whose disk template is listed in constants.DTS_INT_MIRROR are
14614 @type changes: list of (node_name, new_group_uuid) pairs.
14615 @param changes: list of node assignments to consider.
14616 @param node_data: a dict with data for all nodes
14617 @param instance_data: a dict with all instances to consider
14618 @rtype: a two-tuple
14619 @return: a list of instances that were previously okay and result split as a
14620 consequence of this change, and a list of instances that were previously
14621 split and this change does not fix.
14624 changed_nodes = dict((node, group) for node, group in changes
14625 if node_data[node].group != group)
14627 all_split_instances = set()
14628 previously_split_instances = set()
14630 def InstanceNodes(instance):
14631 return [instance.primary_node] + list(instance.secondary_nodes)
14633 for inst in instance_data.values():
14634 if inst.disk_template not in constants.DTS_INT_MIRROR:
14637 instance_nodes = InstanceNodes(inst)
14639 if len(set(node_data[node].group for node in instance_nodes)) > 1:
14640 previously_split_instances.add(inst.name)
14642 if len(set(changed_nodes.get(node, node_data[node].group)
14643 for node in instance_nodes)) > 1:
14644 all_split_instances.add(inst.name)
14646 return (list(all_split_instances - previously_split_instances),
14647 list(previously_split_instances & all_split_instances))
14650 class _GroupQuery(_QueryBase):
14651 FIELDS = query.GROUP_FIELDS
14653 def ExpandNames(self, lu):
14654 lu.needed_locks = {}
14656 self._all_groups = lu.cfg.GetAllNodeGroupsInfo()
14657 self._cluster = lu.cfg.GetClusterInfo()
14658 name_to_uuid = dict((g.name, g.uuid) for g in self._all_groups.values())
14661 self.wanted = [name_to_uuid[name]
14662 for name in utils.NiceSort(name_to_uuid.keys())]
14664 # Accept names to be either names or UUIDs.
14667 all_uuid = frozenset(self._all_groups.keys())
14669 for name in self.names:
14670 if name in all_uuid:
14671 self.wanted.append(name)
14672 elif name in name_to_uuid:
14673 self.wanted.append(name_to_uuid[name])
14675 missing.append(name)
14678 raise errors.OpPrereqError("Some groups do not exist: %s" %
14679 utils.CommaJoin(missing),
14680 errors.ECODE_NOENT)
14682 def DeclareLocks(self, lu, level):
14685 def _GetQueryData(self, lu):
14686 """Computes the list of node groups and their attributes.
14689 do_nodes = query.GQ_NODE in self.requested_data
14690 do_instances = query.GQ_INST in self.requested_data
14692 group_to_nodes = None
14693 group_to_instances = None
14695 # For GQ_NODE, we need to map group->[nodes], and group->[instances] for
14696 # GQ_INST. The former is attainable with just GetAllNodesInfo(), but for the
14697 # latter GetAllInstancesInfo() is not enough, for we have to go through
14698 # instance->node. Hence, we will need to process nodes even if we only need
14699 # instance information.
14700 if do_nodes or do_instances:
14701 all_nodes = lu.cfg.GetAllNodesInfo()
14702 group_to_nodes = dict((uuid, []) for uuid in self.wanted)
14705 for node in all_nodes.values():
14706 if node.group in group_to_nodes:
14707 group_to_nodes[node.group].append(node.name)
14708 node_to_group[node.name] = node.group
14711 all_instances = lu.cfg.GetAllInstancesInfo()
14712 group_to_instances = dict((uuid, []) for uuid in self.wanted)
14714 for instance in all_instances.values():
14715 node = instance.primary_node
14716 if node in node_to_group:
14717 group_to_instances[node_to_group[node]].append(instance.name)
14720 # Do not pass on node information if it was not requested.
14721 group_to_nodes = None
14723 return query.GroupQueryData(self._cluster,
14724 [self._all_groups[uuid]
14725 for uuid in self.wanted],
14726 group_to_nodes, group_to_instances,
14727 query.GQ_DISKPARAMS in self.requested_data)
14730 class LUGroupQuery(NoHooksLU):
14731 """Logical unit for querying node groups.
14736 def CheckArguments(self):
14737 self.gq = _GroupQuery(qlang.MakeSimpleFilter("name", self.op.names),
14738 self.op.output_fields, False)
14740 def ExpandNames(self):
14741 self.gq.ExpandNames(self)
14743 def DeclareLocks(self, level):
14744 self.gq.DeclareLocks(self, level)
14746 def Exec(self, feedback_fn):
14747 return self.gq.OldStyleQuery(self)
14750 class LUGroupSetParams(LogicalUnit):
14751 """Modifies the parameters of a node group.
14754 HPATH = "group-modify"
14755 HTYPE = constants.HTYPE_GROUP
14758 def CheckArguments(self):
14761 self.op.diskparams,
14762 self.op.alloc_policy,
14764 self.op.disk_state,
14768 if all_changes.count(None) == len(all_changes):
14769 raise errors.OpPrereqError("Please pass at least one modification",
14770 errors.ECODE_INVAL)
14772 def ExpandNames(self):
14773 # This raises errors.OpPrereqError on its own:
14774 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
14776 self.needed_locks = {
14777 locking.LEVEL_INSTANCE: [],
14778 locking.LEVEL_NODEGROUP: [self.group_uuid],
14781 self.share_locks[locking.LEVEL_INSTANCE] = 1
14783 def DeclareLocks(self, level):
14784 if level == locking.LEVEL_INSTANCE:
14785 assert not self.needed_locks[locking.LEVEL_INSTANCE]
14787 # Lock instances optimistically, needs verification once group lock has
14789 self.needed_locks[locking.LEVEL_INSTANCE] = \
14790 self.cfg.GetNodeGroupInstances(self.group_uuid)
14793 def _UpdateAndVerifyDiskParams(old, new):
14794 """Updates and verifies disk parameters.
14797 new_params = _GetUpdatedParams(old, new)
14798 utils.ForceDictType(new_params, constants.DISK_DT_TYPES)
14801 def CheckPrereq(self):
14802 """Check prerequisites.
14805 owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE))
14807 # Check if locked instances are still correct
14808 _CheckNodeGroupInstances(self.cfg, self.group_uuid, owned_instances)
14810 self.group = self.cfg.GetNodeGroup(self.group_uuid)
14811 cluster = self.cfg.GetClusterInfo()
14813 if self.group is None:
14814 raise errors.OpExecError("Could not retrieve group '%s' (UUID: %s)" %
14815 (self.op.group_name, self.group_uuid))
14817 if self.op.ndparams:
14818 new_ndparams = _GetUpdatedParams(self.group.ndparams, self.op.ndparams)
14819 utils.ForceDictType(new_ndparams, constants.NDS_PARAMETER_TYPES)
14820 self.new_ndparams = new_ndparams
14822 if self.op.diskparams:
14823 diskparams = self.group.diskparams
14824 uavdp = self._UpdateAndVerifyDiskParams
14825 # For each disktemplate subdict update and verify the values
14826 new_diskparams = dict((dt,
14827 uavdp(diskparams.get(dt, {}),
14828 self.op.diskparams[dt]))
14829 for dt in constants.DISK_TEMPLATES
14830 if dt in self.op.diskparams)
14831 # As we've all subdicts of diskparams ready, lets merge the actual
14832 # dict with all updated subdicts
14833 self.new_diskparams = objects.FillDict(diskparams, new_diskparams)
14835 utils.VerifyDictOptions(self.new_diskparams, constants.DISK_DT_DEFAULTS)
14836 except errors.OpPrereqError, err:
14837 raise errors.OpPrereqError("While verify diskparams options: %s" % err,
14838 errors.ECODE_INVAL)
14840 if self.op.hv_state:
14841 self.new_hv_state = _MergeAndVerifyHvState(self.op.hv_state,
14842 self.group.hv_state_static)
14844 if self.op.disk_state:
14845 self.new_disk_state = \
14846 _MergeAndVerifyDiskState(self.op.disk_state,
14847 self.group.disk_state_static)
14849 if self.op.ipolicy:
14850 self.new_ipolicy = _GetUpdatedIPolicy(self.group.ipolicy,
14854 new_ipolicy = cluster.SimpleFillIPolicy(self.new_ipolicy)
14855 inst_filter = lambda inst: inst.name in owned_instances
14856 instances = self.cfg.GetInstancesInfoByFilter(inst_filter).values()
14857 gmi = ganeti.masterd.instance
14859 _ComputeNewInstanceViolations(gmi.CalculateGroupIPolicy(cluster,
14861 new_ipolicy, instances)
14864 self.LogWarning("After the ipolicy change the following instances"
14865 " violate them: %s",
14866 utils.CommaJoin(violations))
14868 def BuildHooksEnv(self):
14869 """Build hooks env.
14873 "GROUP_NAME": self.op.group_name,
14874 "NEW_ALLOC_POLICY": self.op.alloc_policy,
14877 def BuildHooksNodes(self):
14878 """Build hooks nodes.
14881 mn = self.cfg.GetMasterNode()
14882 return ([mn], [mn])
14884 def Exec(self, feedback_fn):
14885 """Modifies the node group.
14890 if self.op.ndparams:
14891 self.group.ndparams = self.new_ndparams
14892 result.append(("ndparams", str(self.group.ndparams)))
14894 if self.op.diskparams:
14895 self.group.diskparams = self.new_diskparams
14896 result.append(("diskparams", str(self.group.diskparams)))
14898 if self.op.alloc_policy:
14899 self.group.alloc_policy = self.op.alloc_policy
14901 if self.op.hv_state:
14902 self.group.hv_state_static = self.new_hv_state
14904 if self.op.disk_state:
14905 self.group.disk_state_static = self.new_disk_state
14907 if self.op.ipolicy:
14908 self.group.ipolicy = self.new_ipolicy
14910 self.cfg.Update(self.group, feedback_fn)
14914 class LUGroupRemove(LogicalUnit):
14915 HPATH = "group-remove"
14916 HTYPE = constants.HTYPE_GROUP
14919 def ExpandNames(self):
14920 # This will raises errors.OpPrereqError on its own:
14921 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
14922 self.needed_locks = {
14923 locking.LEVEL_NODEGROUP: [self.group_uuid],
14926 def CheckPrereq(self):
14927 """Check prerequisites.
14929 This checks that the given group name exists as a node group, that is
14930 empty (i.e., contains no nodes), and that is not the last group of the
14934 # Verify that the group is empty.
14935 group_nodes = [node.name
14936 for node in self.cfg.GetAllNodesInfo().values()
14937 if node.group == self.group_uuid]
14940 raise errors.OpPrereqError("Group '%s' not empty, has the following"
14942 (self.op.group_name,
14943 utils.CommaJoin(utils.NiceSort(group_nodes))),
14944 errors.ECODE_STATE)
14946 # Verify the cluster would not be left group-less.
14947 if len(self.cfg.GetNodeGroupList()) == 1:
14948 raise errors.OpPrereqError("Group '%s' is the only group, cannot be"
14949 " removed" % self.op.group_name,
14950 errors.ECODE_STATE)
14952 def BuildHooksEnv(self):
14953 """Build hooks env.
14957 "GROUP_NAME": self.op.group_name,
14960 def BuildHooksNodes(self):
14961 """Build hooks nodes.
14964 mn = self.cfg.GetMasterNode()
14965 return ([mn], [mn])
14967 def Exec(self, feedback_fn):
14968 """Remove the node group.
14972 self.cfg.RemoveNodeGroup(self.group_uuid)
14973 except errors.ConfigurationError:
14974 raise errors.OpExecError("Group '%s' with UUID %s disappeared" %
14975 (self.op.group_name, self.group_uuid))
14977 self.remove_locks[locking.LEVEL_NODEGROUP] = self.group_uuid
14980 class LUGroupRename(LogicalUnit):
14981 HPATH = "group-rename"
14982 HTYPE = constants.HTYPE_GROUP
14985 def ExpandNames(self):
14986 # This raises errors.OpPrereqError on its own:
14987 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
14989 self.needed_locks = {
14990 locking.LEVEL_NODEGROUP: [self.group_uuid],
14993 def CheckPrereq(self):
14994 """Check prerequisites.
14996 Ensures requested new name is not yet used.
15000 new_name_uuid = self.cfg.LookupNodeGroup(self.op.new_name)
15001 except errors.OpPrereqError:
15004 raise errors.OpPrereqError("Desired new name '%s' clashes with existing"
15005 " node group (UUID: %s)" %
15006 (self.op.new_name, new_name_uuid),
15007 errors.ECODE_EXISTS)
15009 def BuildHooksEnv(self):
15010 """Build hooks env.
15014 "OLD_NAME": self.op.group_name,
15015 "NEW_NAME": self.op.new_name,
15018 def BuildHooksNodes(self):
15019 """Build hooks nodes.
15022 mn = self.cfg.GetMasterNode()
15024 all_nodes = self.cfg.GetAllNodesInfo()
15025 all_nodes.pop(mn, None)
15028 run_nodes.extend(node.name for node in all_nodes.values()
15029 if node.group == self.group_uuid)
15031 return (run_nodes, run_nodes)
15033 def Exec(self, feedback_fn):
15034 """Rename the node group.
15037 group = self.cfg.GetNodeGroup(self.group_uuid)
15040 raise errors.OpExecError("Could not retrieve group '%s' (UUID: %s)" %
15041 (self.op.group_name, self.group_uuid))
15043 group.name = self.op.new_name
15044 self.cfg.Update(group, feedback_fn)
15046 return self.op.new_name
15049 class LUGroupEvacuate(LogicalUnit):
15050 HPATH = "group-evacuate"
15051 HTYPE = constants.HTYPE_GROUP
15054 def ExpandNames(self):
15055 # This raises errors.OpPrereqError on its own:
15056 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
15058 if self.op.target_groups:
15059 self.req_target_uuids = map(self.cfg.LookupNodeGroup,
15060 self.op.target_groups)
15062 self.req_target_uuids = []
15064 if self.group_uuid in self.req_target_uuids:
15065 raise errors.OpPrereqError("Group to be evacuated (%s) can not be used"
15066 " as a target group (targets are %s)" %
15068 utils.CommaJoin(self.req_target_uuids)),
15069 errors.ECODE_INVAL)
15071 self.op.iallocator = _GetDefaultIAllocator(self.cfg, self.op.iallocator)
15073 self.share_locks = _ShareAll()
15074 self.needed_locks = {
15075 locking.LEVEL_INSTANCE: [],
15076 locking.LEVEL_NODEGROUP: [],
15077 locking.LEVEL_NODE: [],
15080 def DeclareLocks(self, level):
15081 if level == locking.LEVEL_INSTANCE:
15082 assert not self.needed_locks[locking.LEVEL_INSTANCE]
15084 # Lock instances optimistically, needs verification once node and group
15085 # locks have been acquired
15086 self.needed_locks[locking.LEVEL_INSTANCE] = \
15087 self.cfg.GetNodeGroupInstances(self.group_uuid)
15089 elif level == locking.LEVEL_NODEGROUP:
15090 assert not self.needed_locks[locking.LEVEL_NODEGROUP]
15092 if self.req_target_uuids:
15093 lock_groups = set([self.group_uuid] + self.req_target_uuids)
15095 # Lock all groups used by instances optimistically; this requires going
15096 # via the node before it's locked, requiring verification later on
15097 lock_groups.update(group_uuid
15098 for instance_name in
15099 self.owned_locks(locking.LEVEL_INSTANCE)
15101 self.cfg.GetInstanceNodeGroups(instance_name))
15103 # No target groups, need to lock all of them
15104 lock_groups = locking.ALL_SET
15106 self.needed_locks[locking.LEVEL_NODEGROUP] = lock_groups
15108 elif level == locking.LEVEL_NODE:
15109 # This will only lock the nodes in the group to be evacuated which
15110 # contain actual instances
15111 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
15112 self._LockInstancesNodes()
15114 # Lock all nodes in group to be evacuated and target groups
15115 owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP))
15116 assert self.group_uuid in owned_groups
15117 member_nodes = [node_name
15118 for group in owned_groups
15119 for node_name in self.cfg.GetNodeGroup(group).members]
15120 self.needed_locks[locking.LEVEL_NODE].extend(member_nodes)
15122 def CheckPrereq(self):
15123 owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE))
15124 owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP))
15125 owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE))
15127 assert owned_groups.issuperset(self.req_target_uuids)
15128 assert self.group_uuid in owned_groups
15130 # Check if locked instances are still correct
15131 _CheckNodeGroupInstances(self.cfg, self.group_uuid, owned_instances)
15133 # Get instance information
15134 self.instances = dict(self.cfg.GetMultiInstanceInfo(owned_instances))
15136 # Check if node groups for locked instances are still correct
15137 _CheckInstancesNodeGroups(self.cfg, self.instances,
15138 owned_groups, owned_nodes, self.group_uuid)
15140 if self.req_target_uuids:
15141 # User requested specific target groups
15142 self.target_uuids = self.req_target_uuids
15144 # All groups except the one to be evacuated are potential targets
15145 self.target_uuids = [group_uuid for group_uuid in owned_groups
15146 if group_uuid != self.group_uuid]
15148 if not self.target_uuids:
15149 raise errors.OpPrereqError("There are no possible target groups",
15150 errors.ECODE_INVAL)
15152 def BuildHooksEnv(self):
15153 """Build hooks env.
15157 "GROUP_NAME": self.op.group_name,
15158 "TARGET_GROUPS": " ".join(self.target_uuids),
15161 def BuildHooksNodes(self):
15162 """Build hooks nodes.
15165 mn = self.cfg.GetMasterNode()
15167 assert self.group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP)
15169 run_nodes = [mn] + self.cfg.GetNodeGroup(self.group_uuid).members
15171 return (run_nodes, run_nodes)
15173 def Exec(self, feedback_fn):
15174 instances = list(self.owned_locks(locking.LEVEL_INSTANCE))
15176 assert self.group_uuid not in self.target_uuids
15178 req = iallocator.IAReqGroupChange(instances=instances,
15179 target_groups=self.target_uuids)
15180 ial = iallocator.IAllocator(self.cfg, self.rpc, req)
15182 ial.Run(self.op.iallocator)
15184 if not ial.success:
15185 raise errors.OpPrereqError("Can't compute group evacuation using"
15186 " iallocator '%s': %s" %
15187 (self.op.iallocator, ial.info),
15188 errors.ECODE_NORES)
15190 jobs = _LoadNodeEvacResult(self, ial.result, self.op.early_release, False)
15192 self.LogInfo("Iallocator returned %s job(s) for evacuating node group %s",
15193 len(jobs), self.op.group_name)
15195 return ResultWithJobs(jobs)
15198 class TagsLU(NoHooksLU): # pylint: disable=W0223
15199 """Generic tags LU.
15201 This is an abstract class which is the parent of all the other tags LUs.
15204 def ExpandNames(self):
15205 self.group_uuid = None
15206 self.needed_locks = {}
15208 if self.op.kind == constants.TAG_NODE:
15209 self.op.name = _ExpandNodeName(self.cfg, self.op.name)
15210 lock_level = locking.LEVEL_NODE
15211 lock_name = self.op.name
15212 elif self.op.kind == constants.TAG_INSTANCE:
15213 self.op.name = _ExpandInstanceName(self.cfg, self.op.name)
15214 lock_level = locking.LEVEL_INSTANCE
15215 lock_name = self.op.name
15216 elif self.op.kind == constants.TAG_NODEGROUP:
15217 self.group_uuid = self.cfg.LookupNodeGroup(self.op.name)
15218 lock_level = locking.LEVEL_NODEGROUP
15219 lock_name = self.group_uuid
15220 elif self.op.kind == constants.TAG_NETWORK:
15221 self.network_uuid = self.cfg.LookupNetwork(self.op.name)
15222 lock_level = locking.LEVEL_NETWORK
15223 lock_name = self.network_uuid
15228 if lock_level and getattr(self.op, "use_locking", True):
15229 self.needed_locks[lock_level] = lock_name
15231 # FIXME: Acquire BGL for cluster tag operations (as of this writing it's
15232 # not possible to acquire the BGL based on opcode parameters)
15234 def CheckPrereq(self):
15235 """Check prerequisites.
15238 if self.op.kind == constants.TAG_CLUSTER:
15239 self.target = self.cfg.GetClusterInfo()
15240 elif self.op.kind == constants.TAG_NODE:
15241 self.target = self.cfg.GetNodeInfo(self.op.name)
15242 elif self.op.kind == constants.TAG_INSTANCE:
15243 self.target = self.cfg.GetInstanceInfo(self.op.name)
15244 elif self.op.kind == constants.TAG_NODEGROUP:
15245 self.target = self.cfg.GetNodeGroup(self.group_uuid)
15246 elif self.op.kind == constants.TAG_NETWORK:
15247 self.target = self.cfg.GetNetwork(self.network_uuid)
15249 raise errors.OpPrereqError("Wrong tag type requested (%s)" %
15250 str(self.op.kind), errors.ECODE_INVAL)
15253 class LUTagsGet(TagsLU):
15254 """Returns the tags of a given object.
15259 def ExpandNames(self):
15260 TagsLU.ExpandNames(self)
15262 # Share locks as this is only a read operation
15263 self.share_locks = _ShareAll()
15265 def Exec(self, feedback_fn):
15266 """Returns the tag list.
15269 return list(self.target.GetTags())
15272 class LUTagsSearch(NoHooksLU):
15273 """Searches the tags for a given pattern.
15278 def ExpandNames(self):
15279 self.needed_locks = {}
15281 def CheckPrereq(self):
15282 """Check prerequisites.
15284 This checks the pattern passed for validity by compiling it.
15288 self.re = re.compile(self.op.pattern)
15289 except re.error, err:
15290 raise errors.OpPrereqError("Invalid search pattern '%s': %s" %
15291 (self.op.pattern, err), errors.ECODE_INVAL)
15293 def Exec(self, feedback_fn):
15294 """Returns the tag list.
15298 tgts = [("/cluster", cfg.GetClusterInfo())]
15299 ilist = cfg.GetAllInstancesInfo().values()
15300 tgts.extend([("/instances/%s" % i.name, i) for i in ilist])
15301 nlist = cfg.GetAllNodesInfo().values()
15302 tgts.extend([("/nodes/%s" % n.name, n) for n in nlist])
15303 tgts.extend(("/nodegroup/%s" % n.name, n)
15304 for n in cfg.GetAllNodeGroupsInfo().values())
15306 for path, target in tgts:
15307 for tag in target.GetTags():
15308 if self.re.search(tag):
15309 results.append((path, tag))
15313 class LUTagsSet(TagsLU):
15314 """Sets a tag on a given object.
15319 def CheckPrereq(self):
15320 """Check prerequisites.
15322 This checks the type and length of the tag name and value.
15325 TagsLU.CheckPrereq(self)
15326 for tag in self.op.tags:
15327 objects.TaggableObject.ValidateTag(tag)
15329 def Exec(self, feedback_fn):
15334 for tag in self.op.tags:
15335 self.target.AddTag(tag)
15336 except errors.TagError, err:
15337 raise errors.OpExecError("Error while setting tag: %s" % str(err))
15338 self.cfg.Update(self.target, feedback_fn)
15341 class LUTagsDel(TagsLU):
15342 """Delete a list of tags from a given object.
15347 def CheckPrereq(self):
15348 """Check prerequisites.
15350 This checks that we have the given tag.
15353 TagsLU.CheckPrereq(self)
15354 for tag in self.op.tags:
15355 objects.TaggableObject.ValidateTag(tag)
15356 del_tags = frozenset(self.op.tags)
15357 cur_tags = self.target.GetTags()
15359 diff_tags = del_tags - cur_tags
15361 diff_names = ("'%s'" % i for i in sorted(diff_tags))
15362 raise errors.OpPrereqError("Tag(s) %s not found" %
15363 (utils.CommaJoin(diff_names), ),
15364 errors.ECODE_NOENT)
15366 def Exec(self, feedback_fn):
15367 """Remove the tag from the object.
15370 for tag in self.op.tags:
15371 self.target.RemoveTag(tag)
15372 self.cfg.Update(self.target, feedback_fn)
15375 class LUTestDelay(NoHooksLU):
15376 """Sleep for a specified amount of time.
15378 This LU sleeps on the master and/or nodes for a specified amount of
15384 def ExpandNames(self):
15385 """Expand names and set required locks.
15387 This expands the node list, if any.
15390 self.needed_locks = {}
15391 if self.op.on_nodes:
15392 # _GetWantedNodes can be used here, but is not always appropriate to use
15393 # this way in ExpandNames. Check LogicalUnit.ExpandNames docstring for
15394 # more information.
15395 self.op.on_nodes = _GetWantedNodes(self, self.op.on_nodes)
15396 self.needed_locks[locking.LEVEL_NODE] = self.op.on_nodes
15398 def _TestDelay(self):
15399 """Do the actual sleep.
15402 if self.op.on_master:
15403 if not utils.TestDelay(self.op.duration):
15404 raise errors.OpExecError("Error during master delay test")
15405 if self.op.on_nodes:
15406 result = self.rpc.call_test_delay(self.op.on_nodes, self.op.duration)
15407 for node, node_result in result.items():
15408 node_result.Raise("Failure during rpc call to node %s" % node)
15410 def Exec(self, feedback_fn):
15411 """Execute the test delay opcode, with the wanted repetitions.
15414 if self.op.repeat == 0:
15417 top_value = self.op.repeat - 1
15418 for i in range(self.op.repeat):
15419 self.LogInfo("Test delay iteration %d/%d", i, top_value)
15423 class LURestrictedCommand(NoHooksLU):
15424 """Logical unit for executing restricted commands.
15429 def ExpandNames(self):
15431 self.op.nodes = _GetWantedNodes(self, self.op.nodes)
15433 self.needed_locks = {
15434 locking.LEVEL_NODE: self.op.nodes,
15436 self.share_locks = {
15437 locking.LEVEL_NODE: not self.op.use_locking,
15440 def CheckPrereq(self):
15441 """Check prerequisites.
15445 def Exec(self, feedback_fn):
15446 """Execute restricted command and return output.
15449 owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE))
15451 # Check if correct locks are held
15452 assert set(self.op.nodes).issubset(owned_nodes)
15454 rpcres = self.rpc.call_restricted_command(self.op.nodes, self.op.command)
15458 for node_name in self.op.nodes:
15459 nres = rpcres[node_name]
15461 msg = ("Command '%s' on node '%s' failed: %s" %
15462 (self.op.command, node_name, nres.fail_msg))
15463 result.append((False, msg))
15465 result.append((True, nres.payload))
15470 class LUTestJqueue(NoHooksLU):
15471 """Utility LU to test some aspects of the job queue.
15476 # Must be lower than default timeout for WaitForJobChange to see whether it
15477 # notices changed jobs
15478 _CLIENT_CONNECT_TIMEOUT = 20.0
15479 _CLIENT_CONFIRM_TIMEOUT = 60.0
15482 def _NotifyUsingSocket(cls, cb, errcls):
15483 """Opens a Unix socket and waits for another program to connect.
15486 @param cb: Callback to send socket name to client
15487 @type errcls: class
15488 @param errcls: Exception class to use for errors
15491 # Using a temporary directory as there's no easy way to create temporary
15492 # sockets without writing a custom loop around tempfile.mktemp and
15494 tmpdir = tempfile.mkdtemp()
15496 tmpsock = utils.PathJoin(tmpdir, "sock")
15498 logging.debug("Creating temporary socket at %s", tmpsock)
15499 sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
15504 # Send details to client
15507 # Wait for client to connect before continuing
15508 sock.settimeout(cls._CLIENT_CONNECT_TIMEOUT)
15510 (conn, _) = sock.accept()
15511 except socket.error, err:
15512 raise errcls("Client didn't connect in time (%s)" % err)
15516 # Remove as soon as client is connected
15517 shutil.rmtree(tmpdir)
15519 # Wait for client to close
15522 # pylint: disable=E1101
15523 # Instance of '_socketobject' has no ... member
15524 conn.settimeout(cls._CLIENT_CONFIRM_TIMEOUT)
15526 except socket.error, err:
15527 raise errcls("Client failed to confirm notification (%s)" % err)
15531 def _SendNotification(self, test, arg, sockname):
15532 """Sends a notification to the client.
15535 @param test: Test name
15536 @param arg: Test argument (depends on test)
15537 @type sockname: string
15538 @param sockname: Socket path
15541 self.Log(constants.ELOG_JQUEUE_TEST, (sockname, test, arg))
15543 def _Notify(self, prereq, test, arg):
15544 """Notifies the client of a test.
15547 @param prereq: Whether this is a prereq-phase test
15549 @param test: Test name
15550 @param arg: Test argument (depends on test)
15554 errcls = errors.OpPrereqError
15556 errcls = errors.OpExecError
15558 return self._NotifyUsingSocket(compat.partial(self._SendNotification,
15562 def CheckArguments(self):
15563 self.checkargs_calls = getattr(self, "checkargs_calls", 0) + 1
15564 self.expandnames_calls = 0
15566 def ExpandNames(self):
15567 checkargs_calls = getattr(self, "checkargs_calls", 0)
15568 if checkargs_calls < 1:
15569 raise errors.ProgrammerError("CheckArguments was not called")
15571 self.expandnames_calls += 1
15573 if self.op.notify_waitlock:
15574 self._Notify(True, constants.JQT_EXPANDNAMES, None)
15576 self.LogInfo("Expanding names")
15578 # Get lock on master node (just to get a lock, not for a particular reason)
15579 self.needed_locks = {
15580 locking.LEVEL_NODE: self.cfg.GetMasterNode(),
15583 def Exec(self, feedback_fn):
15584 if self.expandnames_calls < 1:
15585 raise errors.ProgrammerError("ExpandNames was not called")
15587 if self.op.notify_exec:
15588 self._Notify(False, constants.JQT_EXEC, None)
15590 self.LogInfo("Executing")
15592 if self.op.log_messages:
15593 self._Notify(False, constants.JQT_STARTMSG, len(self.op.log_messages))
15594 for idx, msg in enumerate(self.op.log_messages):
15595 self.LogInfo("Sending log message %s", idx + 1)
15596 feedback_fn(constants.JQT_MSGPREFIX + msg)
15597 # Report how many test messages have been sent
15598 self._Notify(False, constants.JQT_LOGMSG, idx + 1)
15601 raise errors.OpExecError("Opcode failure was requested")
15606 class LUTestAllocator(NoHooksLU):
15607 """Run allocator tests.
15609 This LU runs the allocator tests
15612 def CheckPrereq(self):
15613 """Check prerequisites.
15615 This checks the opcode parameters depending on the director and mode test.
15618 if self.op.mode in (constants.IALLOCATOR_MODE_ALLOC,
15619 constants.IALLOCATOR_MODE_MULTI_ALLOC):
15620 for attr in ["memory", "disks", "disk_template",
15621 "os", "tags", "nics", "vcpus"]:
15622 if not hasattr(self.op, attr):
15623 raise errors.OpPrereqError("Missing attribute '%s' on opcode input" %
15624 attr, errors.ECODE_INVAL)
15625 iname = self.cfg.ExpandInstanceName(self.op.name)
15626 if iname is not None:
15627 raise errors.OpPrereqError("Instance '%s' already in the cluster" %
15628 iname, errors.ECODE_EXISTS)
15629 if not isinstance(self.op.nics, list):
15630 raise errors.OpPrereqError("Invalid parameter 'nics'",
15631 errors.ECODE_INVAL)
15632 if not isinstance(self.op.disks, list):
15633 raise errors.OpPrereqError("Invalid parameter 'disks'",
15634 errors.ECODE_INVAL)
15635 for row in self.op.disks:
15636 if (not isinstance(row, dict) or
15637 constants.IDISK_SIZE not in row or
15638 not isinstance(row[constants.IDISK_SIZE], int) or
15639 constants.IDISK_MODE not in row or
15640 row[constants.IDISK_MODE] not in constants.DISK_ACCESS_SET):
15641 raise errors.OpPrereqError("Invalid contents of the 'disks'"
15642 " parameter", errors.ECODE_INVAL)
15643 if self.op.hypervisor is None:
15644 self.op.hypervisor = self.cfg.GetHypervisorType()
15645 elif self.op.mode == constants.IALLOCATOR_MODE_RELOC:
15646 fname = _ExpandInstanceName(self.cfg, self.op.name)
15647 self.op.name = fname
15648 self.relocate_from = \
15649 list(self.cfg.GetInstanceInfo(fname).secondary_nodes)
15650 elif self.op.mode in (constants.IALLOCATOR_MODE_CHG_GROUP,
15651 constants.IALLOCATOR_MODE_NODE_EVAC):
15652 if not self.op.instances:
15653 raise errors.OpPrereqError("Missing instances", errors.ECODE_INVAL)
15654 self.op.instances = _GetWantedInstances(self, self.op.instances)
15656 raise errors.OpPrereqError("Invalid test allocator mode '%s'" %
15657 self.op.mode, errors.ECODE_INVAL)
15659 if self.op.direction == constants.IALLOCATOR_DIR_OUT:
15660 if self.op.iallocator is None:
15661 raise errors.OpPrereqError("Missing allocator name",
15662 errors.ECODE_INVAL)
15663 elif self.op.direction != constants.IALLOCATOR_DIR_IN:
15664 raise errors.OpPrereqError("Wrong allocator test '%s'" %
15665 self.op.direction, errors.ECODE_INVAL)
15667 def Exec(self, feedback_fn):
15668 """Run the allocator test.
15671 if self.op.mode == constants.IALLOCATOR_MODE_ALLOC:
15672 req = iallocator.IAReqInstanceAlloc(name=self.op.name,
15673 memory=self.op.memory,
15674 disks=self.op.disks,
15675 disk_template=self.op.disk_template,
15679 vcpus=self.op.vcpus,
15680 spindle_use=self.op.spindle_use,
15681 hypervisor=self.op.hypervisor)
15682 elif self.op.mode == constants.IALLOCATOR_MODE_RELOC:
15683 req = iallocator.IAReqRelocate(name=self.op.name,
15684 relocate_from=list(self.relocate_from))
15685 elif self.op.mode == constants.IALLOCATOR_MODE_CHG_GROUP:
15686 req = iallocator.IAReqGroupChange(instances=self.op.instances,
15687 target_groups=self.op.target_groups)
15688 elif self.op.mode == constants.IALLOCATOR_MODE_NODE_EVAC:
15689 req = iallocator.IAReqNodeEvac(instances=self.op.instances,
15690 evac_mode=self.op.evac_mode)
15691 elif self.op.mode == constants.IALLOCATOR_MODE_MULTI_ALLOC:
15692 disk_template = self.op.disk_template
15693 insts = [iallocator.IAReqInstanceAlloc(name="%s%s" % (self.op.name, idx),
15694 memory=self.op.memory,
15695 disks=self.op.disks,
15696 disk_template=disk_template,
15700 vcpus=self.op.vcpus,
15701 spindle_use=self.op.spindle_use,
15702 hypervisor=self.op.hypervisor)
15703 for idx in range(self.op.count)]
15704 req = iallocator.IAReqMultiInstanceAlloc(instances=insts)
15706 raise errors.ProgrammerError("Uncatched mode %s in"
15707 " LUTestAllocator.Exec", self.op.mode)
15709 ial = iallocator.IAllocator(self.cfg, self.rpc, req)
15710 if self.op.direction == constants.IALLOCATOR_DIR_IN:
15711 result = ial.in_text
15713 ial.Run(self.op.iallocator, validate=False)
15714 result = ial.out_text
15718 class LUNetworkAdd(LogicalUnit):
15719 """Logical unit for creating networks.
15722 HPATH = "network-add"
15723 HTYPE = constants.HTYPE_NETWORK
15726 def BuildHooksNodes(self):
15727 """Build hooks nodes.
15730 mn = self.cfg.GetMasterNode()
15731 return ([mn], [mn])
15733 def CheckArguments(self):
15734 if self.op.mac_prefix:
15735 self.op.mac_prefix = \
15736 utils.NormalizeAndValidateThreeOctetMacPrefix(self.op.mac_prefix)
15738 def ExpandNames(self):
15739 self.network_uuid = self.cfg.GenerateUniqueID(self.proc.GetECId())
15741 if self.op.conflicts_check:
15742 self.share_locks[locking.LEVEL_NODE] = 1
15743 self.share_locks[locking.LEVEL_NODE_ALLOC] = 1
15744 self.needed_locks = {
15745 locking.LEVEL_NODE: locking.ALL_SET,
15746 locking.LEVEL_NODE_ALLOC: locking.ALL_SET,
15749 self.needed_locks = {}
15751 self.add_locks[locking.LEVEL_NETWORK] = self.network_uuid
15753 def CheckPrereq(self):
15754 if self.op.network is None:
15755 raise errors.OpPrereqError("Network must be given",
15756 errors.ECODE_INVAL)
15758 uuid = self.cfg.LookupNetwork(self.op.network_name)
15761 raise errors.OpPrereqError("Network '%s' already defined" %
15762 self.op.network, errors.ECODE_EXISTS)
15764 # Check tag validity
15765 for tag in self.op.tags:
15766 objects.TaggableObject.ValidateTag(tag)
15768 def BuildHooksEnv(self):
15769 """Build hooks env.
15773 "name": self.op.network_name,
15774 "subnet": self.op.network,
15775 "gateway": self.op.gateway,
15776 "network6": self.op.network6,
15777 "gateway6": self.op.gateway6,
15778 "mac_prefix": self.op.mac_prefix,
15779 "network_type": self.op.network_type,
15780 "tags": self.op.tags,
15782 return _BuildNetworkHookEnv(**args) # pylint: disable=W0142
15784 def Exec(self, feedback_fn):
15785 """Add the ip pool to the cluster.
15788 nobj = objects.Network(name=self.op.network_name,
15789 network=self.op.network,
15790 gateway=self.op.gateway,
15791 network6=self.op.network6,
15792 gateway6=self.op.gateway6,
15793 mac_prefix=self.op.mac_prefix,
15794 network_type=self.op.network_type,
15795 uuid=self.network_uuid,
15796 family=constants.IP4_VERSION)
15797 # Initialize the associated address pool
15799 pool = network.AddressPool.InitializeNetwork(nobj)
15800 except errors.AddressPoolError, e:
15801 raise errors.OpExecError("Cannot create IP pool for this network: %s" % e)
15803 # Check if we need to reserve the nodes and the cluster master IP
15804 # These may not be allocated to any instances in routed mode, as
15805 # they wouldn't function anyway.
15806 if self.op.conflicts_check:
15807 for node in self.cfg.GetAllNodesInfo().values():
15808 for ip in [node.primary_ip, node.secondary_ip]:
15810 if pool.Contains(ip):
15812 self.LogInfo("Reserved IP address of node '%s' (%s)",
15814 except errors.AddressPoolError:
15815 self.LogWarning("Cannot reserve IP address of node '%s' (%s)",
15818 master_ip = self.cfg.GetClusterInfo().master_ip
15820 if pool.Contains(master_ip):
15821 pool.Reserve(master_ip)
15822 self.LogInfo("Reserved cluster master IP address (%s)", master_ip)
15823 except errors.AddressPoolError:
15824 self.LogWarning("Cannot reserve cluster master IP address (%s)",
15827 if self.op.add_reserved_ips:
15828 for ip in self.op.add_reserved_ips:
15830 pool.Reserve(ip, external=True)
15831 except errors.AddressPoolError, e:
15832 raise errors.OpExecError("Cannot reserve IP %s. %s " % (ip, e))
15835 for tag in self.op.tags:
15838 self.cfg.AddNetwork(nobj, self.proc.GetECId(), check_uuid=False)
15839 del self.remove_locks[locking.LEVEL_NETWORK]
15842 class LUNetworkRemove(LogicalUnit):
15843 HPATH = "network-remove"
15844 HTYPE = constants.HTYPE_NETWORK
15847 def ExpandNames(self):
15848 self.network_uuid = self.cfg.LookupNetwork(self.op.network_name)
15850 if not self.network_uuid:
15851 raise errors.OpPrereqError(("Network '%s' not found" %
15852 self.op.network_name),
15853 errors.ECODE_INVAL)
15855 self.share_locks[locking.LEVEL_NODEGROUP] = 1
15856 self.needed_locks = {
15857 locking.LEVEL_NETWORK: [self.network_uuid],
15858 locking.LEVEL_NODEGROUP: locking.ALL_SET,
15861 def CheckPrereq(self):
15862 """Check prerequisites.
15864 This checks that the given network name exists as a network, that is
15865 empty (i.e., contains no nodes), and that is not the last group of the
15869 # Verify that the network is not conncted.
15870 node_groups = [group.name
15871 for group in self.cfg.GetAllNodeGroupsInfo().values()
15872 if self.network_uuid in group.networks]
15875 self.LogWarning("Network '%s' is connected to the following"
15876 " node groups: %s" %
15877 (self.op.network_name,
15878 utils.CommaJoin(utils.NiceSort(node_groups))))
15879 raise errors.OpPrereqError("Network still connected", errors.ECODE_STATE)
15881 def BuildHooksEnv(self):
15882 """Build hooks env.
15886 "NETWORK_NAME": self.op.network_name,
15889 def BuildHooksNodes(self):
15890 """Build hooks nodes.
15893 mn = self.cfg.GetMasterNode()
15894 return ([mn], [mn])
15896 def Exec(self, feedback_fn):
15897 """Remove the network.
15901 self.cfg.RemoveNetwork(self.network_uuid)
15902 except errors.ConfigurationError:
15903 raise errors.OpExecError("Network '%s' with UUID %s disappeared" %
15904 (self.op.network_name, self.network_uuid))
15907 class LUNetworkSetParams(LogicalUnit):
15908 """Modifies the parameters of a network.
15911 HPATH = "network-modify"
15912 HTYPE = constants.HTYPE_NETWORK
15915 def CheckArguments(self):
15916 if (self.op.gateway and
15917 (self.op.add_reserved_ips or self.op.remove_reserved_ips)):
15918 raise errors.OpPrereqError("Cannot modify gateway and reserved ips"
15919 " at once", errors.ECODE_INVAL)
15921 def ExpandNames(self):
15922 self.network_uuid = self.cfg.LookupNetwork(self.op.network_name)
15923 if self.network_uuid is None:
15924 raise errors.OpPrereqError(("Network '%s' not found" %
15925 self.op.network_name),
15926 errors.ECODE_INVAL)
15928 self.needed_locks = {
15929 locking.LEVEL_NETWORK: [self.network_uuid],
15932 def CheckPrereq(self):
15933 """Check prerequisites.
15936 self.network = self.cfg.GetNetwork(self.network_uuid)
15937 self.gateway = self.network.gateway
15938 self.network_type = self.network.network_type
15939 self.mac_prefix = self.network.mac_prefix
15940 self.network6 = self.network.network6
15941 self.gateway6 = self.network.gateway6
15942 self.tags = self.network.tags
15944 self.pool = network.AddressPool(self.network)
15946 if self.op.gateway:
15947 if self.op.gateway == constants.VALUE_NONE:
15948 self.gateway = None
15950 self.gateway = self.op.gateway
15951 if self.pool.IsReserved(self.gateway):
15952 raise errors.OpPrereqError("%s is already reserved" %
15953 self.gateway, errors.ECODE_INVAL)
15955 if self.op.network_type:
15956 if self.op.network_type == constants.VALUE_NONE:
15957 self.network_type = None
15959 self.network_type = self.op.network_type
15961 if self.op.mac_prefix:
15962 if self.op.mac_prefix == constants.VALUE_NONE:
15963 self.mac_prefix = None
15965 self.mac_prefix = \
15966 utils.NormalizeAndValidateThreeOctetMacPrefix(self.op.mac_prefix)
15968 if self.op.gateway6:
15969 if self.op.gateway6 == constants.VALUE_NONE:
15970 self.gateway6 = None
15972 self.gateway6 = self.op.gateway6
15974 if self.op.network6:
15975 if self.op.network6 == constants.VALUE_NONE:
15976 self.network6 = None
15978 self.network6 = self.op.network6
15980 def BuildHooksEnv(self):
15981 """Build hooks env.
15985 "name": self.op.network_name,
15986 "subnet": self.network.network,
15987 "gateway": self.gateway,
15988 "network6": self.network6,
15989 "gateway6": self.gateway6,
15990 "mac_prefix": self.mac_prefix,
15991 "network_type": self.network_type,
15994 return _BuildNetworkHookEnv(**args) # pylint: disable=W0142
15996 def BuildHooksNodes(self):
15997 """Build hooks nodes.
16000 mn = self.cfg.GetMasterNode()
16001 return ([mn], [mn])
16003 def Exec(self, feedback_fn):
16004 """Modifies the network.
16007 #TODO: reserve/release via temporary reservation manager
16008 # extend cfg.ReserveIp/ReleaseIp with the external flag
16009 if self.op.gateway:
16010 if self.gateway == self.network.gateway:
16011 self.LogWarning("Gateway is already %s", self.gateway)
16014 self.pool.Reserve(self.gateway, external=True)
16015 if self.network.gateway:
16016 self.pool.Release(self.network.gateway, external=True)
16017 self.network.gateway = self.gateway
16019 if self.op.add_reserved_ips:
16020 for ip in self.op.add_reserved_ips:
16022 if self.pool.IsReserved(ip):
16023 self.LogWarning("IP address %s is already reserved", ip)
16025 self.pool.Reserve(ip, external=True)
16026 except errors.AddressPoolError, err:
16027 self.LogWarning("Cannot reserve IP address %s: %s", ip, err)
16029 if self.op.remove_reserved_ips:
16030 for ip in self.op.remove_reserved_ips:
16031 if ip == self.network.gateway:
16032 self.LogWarning("Cannot unreserve Gateway's IP")
16035 if not self.pool.IsReserved(ip):
16036 self.LogWarning("IP address %s is already unreserved", ip)
16038 self.pool.Release(ip, external=True)
16039 except errors.AddressPoolError, err:
16040 self.LogWarning("Cannot release IP address %s: %s", ip, err)
16042 if self.op.mac_prefix:
16043 self.network.mac_prefix = self.mac_prefix
16045 if self.op.network6:
16046 self.network.network6 = self.network6
16048 if self.op.gateway6:
16049 self.network.gateway6 = self.gateway6
16051 if self.op.network_type:
16052 self.network.network_type = self.network_type
16054 self.pool.Validate()
16056 self.cfg.Update(self.network, feedback_fn)
16059 class _NetworkQuery(_QueryBase):
16060 FIELDS = query.NETWORK_FIELDS
16062 def ExpandNames(self, lu):
16063 lu.needed_locks = {}
16065 self._all_networks = lu.cfg.GetAllNetworksInfo()
16066 name_to_uuid = dict((n.name, n.uuid) for n in self._all_networks.values())
16069 self.wanted = [name_to_uuid[name]
16070 for name in utils.NiceSort(name_to_uuid.keys())]
16072 # Accept names to be either names or UUIDs.
16075 all_uuid = frozenset(self._all_networks.keys())
16077 for name in self.names:
16078 if name in all_uuid:
16079 self.wanted.append(name)
16080 elif name in name_to_uuid:
16081 self.wanted.append(name_to_uuid[name])
16083 missing.append(name)
16086 raise errors.OpPrereqError("Some networks do not exist: %s" % missing,
16087 errors.ECODE_NOENT)
16089 def DeclareLocks(self, lu, level):
16092 def _GetQueryData(self, lu):
16093 """Computes the list of networks and their attributes.
16096 do_instances = query.NETQ_INST in self.requested_data
16097 do_groups = do_instances or (query.NETQ_GROUP in self.requested_data)
16098 do_stats = query.NETQ_STATS in self.requested_data
16100 network_to_groups = None
16101 network_to_instances = None
16104 # For NETQ_GROUP, we need to map network->[groups]
16106 all_groups = lu.cfg.GetAllNodeGroupsInfo()
16107 network_to_groups = dict((uuid, []) for uuid in self.wanted)
16110 all_instances = lu.cfg.GetAllInstancesInfo()
16111 all_nodes = lu.cfg.GetAllNodesInfo()
16112 network_to_instances = dict((uuid, []) for uuid in self.wanted)
16114 for group in all_groups.values():
16116 group_nodes = [node.name for node in all_nodes.values() if
16117 node.group == group.uuid]
16118 group_instances = [instance for instance in all_instances.values()
16119 if instance.primary_node in group_nodes]
16121 for net_uuid in group.networks.keys():
16122 if net_uuid in network_to_groups:
16123 netparams = group.networks[net_uuid]
16124 mode = netparams[constants.NIC_MODE]
16125 link = netparams[constants.NIC_LINK]
16126 info = group.name + "(" + mode + ", " + link + ")"
16127 network_to_groups[net_uuid].append(info)
16130 for instance in group_instances:
16131 for nic in instance.nics:
16132 if nic.network == self._all_networks[net_uuid].name:
16133 network_to_instances[net_uuid].append(instance.name)
16138 for uuid, net in self._all_networks.items():
16139 if uuid in self.wanted:
16140 pool = network.AddressPool(net)
16142 "free_count": pool.GetFreeCount(),
16143 "reserved_count": pool.GetReservedCount(),
16144 "map": pool.GetMap(),
16145 "external_reservations":
16146 utils.CommaJoin(pool.GetExternalReservations()),
16149 return query.NetworkQueryData([self._all_networks[uuid]
16150 for uuid in self.wanted],
16152 network_to_instances,
16156 class LUNetworkQuery(NoHooksLU):
16157 """Logical unit for querying networks.
16162 def CheckArguments(self):
16163 self.nq = _NetworkQuery(qlang.MakeSimpleFilter("name", self.op.names),
16164 self.op.output_fields, False)
16166 def ExpandNames(self):
16167 self.nq.ExpandNames(self)
16169 def Exec(self, feedback_fn):
16170 return self.nq.OldStyleQuery(self)
16173 class LUNetworkConnect(LogicalUnit):
16174 """Connect a network to a nodegroup
16177 HPATH = "network-connect"
16178 HTYPE = constants.HTYPE_NETWORK
16181 def ExpandNames(self):
16182 self.network_name = self.op.network_name
16183 self.group_name = self.op.group_name
16184 self.network_mode = self.op.network_mode
16185 self.network_link = self.op.network_link
16187 self.network_uuid = self.cfg.LookupNetwork(self.network_name)
16188 if self.network_uuid is None:
16189 raise errors.OpPrereqError("Network %s does not exist" %
16190 self.network_name, errors.ECODE_INVAL)
16192 self.group_uuid = self.cfg.LookupNodeGroup(self.group_name)
16193 if self.group_uuid is None:
16194 raise errors.OpPrereqError("Group %s does not exist" %
16195 self.group_name, errors.ECODE_INVAL)
16197 self.needed_locks = {
16198 locking.LEVEL_INSTANCE: [],
16199 locking.LEVEL_NODEGROUP: [self.group_uuid],
16201 self.share_locks[locking.LEVEL_INSTANCE] = 1
16203 if self.op.conflicts_check:
16204 self.needed_locks[locking.LEVEL_NETWORK] = [self.network_uuid]
16205 self.share_locks[locking.LEVEL_NETWORK] = 1
16207 def DeclareLocks(self, level):
16208 if level == locking.LEVEL_INSTANCE:
16209 assert not self.needed_locks[locking.LEVEL_INSTANCE]
16211 # Lock instances optimistically, needs verification once group lock has
16213 if self.op.conflicts_check:
16214 self.needed_locks[locking.LEVEL_INSTANCE] = \
16215 self.cfg.GetNodeGroupInstances(self.group_uuid)
16217 def BuildHooksEnv(self):
16219 "GROUP_NAME": self.group_name,
16220 "GROUP_NETWORK_MODE": self.network_mode,
16221 "GROUP_NETWORK_LINK": self.network_link,
16225 def BuildHooksNodes(self):
16226 nodes = self.cfg.GetNodeGroup(self.group_uuid).members
16227 return (nodes, nodes)
16229 def CheckPrereq(self):
16230 owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP))
16232 assert self.group_uuid in owned_groups
16235 constants.NIC_MODE: self.network_mode,
16236 constants.NIC_LINK: self.network_link,
16238 objects.NIC.CheckParameterSyntax(self.netparams)
16240 self.group = self.cfg.GetNodeGroup(self.group_uuid)
16241 #if self.network_mode == constants.NIC_MODE_BRIDGED:
16242 # _CheckNodeGroupBridgesExist(self, self.network_link, self.group_uuid)
16243 self.connected = False
16244 if self.network_uuid in self.group.networks:
16245 self.LogWarning("Network '%s' is already mapped to group '%s'" %
16246 (self.network_name, self.group.name))
16247 self.connected = True
16250 if self.op.conflicts_check:
16251 pool = network.AddressPool(self.cfg.GetNetwork(self.network_uuid))
16253 _NetworkConflictCheck(self, lambda nic: pool.Contains(nic.ip),
16256 def Exec(self, feedback_fn):
16260 self.group.networks[self.network_uuid] = self.netparams
16261 self.cfg.Update(self.group, feedback_fn)
16264 def _NetworkConflictCheck(lu, check_fn, action):
16265 """Checks for network interface conflicts with a network.
16267 @type lu: L{LogicalUnit}
16268 @type check_fn: callable receiving one parameter (L{objects.NIC}) and
16270 @param check_fn: Function checking for conflict
16271 @type action: string
16272 @param action: Part of error message (see code)
16273 @raise errors.OpPrereqError: If conflicting IP addresses are found.
16276 # Check if locked instances are still correct
16277 owned_instances = frozenset(lu.owned_locks(locking.LEVEL_INSTANCE))
16278 _CheckNodeGroupInstances(lu.cfg, lu.group_uuid, owned_instances)
16282 for (_, instance) in lu.cfg.GetMultiInstanceInfo(owned_instances):
16283 instconflicts = [(idx, nic.ip)
16284 for (idx, nic) in enumerate(instance.nics)
16288 conflicts.append((instance.name, instconflicts))
16291 lu.LogWarning("IP addresses from network '%s', which is about to %s"
16292 " node group '%s', are in use: %s" %
16293 (lu.network_name, action, lu.group.name,
16294 utils.CommaJoin(("%s: %s" %
16295 (name, _FmtNetworkConflict(details)))
16296 for (name, details) in conflicts)))
16298 raise errors.OpPrereqError("Conflicting IP addresses found; "
16299 " remove/modify the corresponding network"
16300 " interfaces", errors.ECODE_INVAL)
16303 def _FmtNetworkConflict(details):
16304 """Utility for L{_NetworkConflictCheck}.
16307 return utils.CommaJoin("nic%s/%s" % (idx, ipaddr)
16308 for (idx, ipaddr) in details)
16311 class LUNetworkDisconnect(LogicalUnit):
16312 """Disconnect a network to a nodegroup
16315 HPATH = "network-disconnect"
16316 HTYPE = constants.HTYPE_NETWORK
16319 def ExpandNames(self):
16320 self.network_name = self.op.network_name
16321 self.group_name = self.op.group_name
16323 self.network_uuid = self.cfg.LookupNetwork(self.network_name)
16324 if self.network_uuid is None:
16325 raise errors.OpPrereqError("Network %s does not exist" %
16326 self.network_name, errors.ECODE_INVAL)
16328 self.group_uuid = self.cfg.LookupNodeGroup(self.group_name)
16329 if self.group_uuid is None:
16330 raise errors.OpPrereqError("Group %s does not exist" %
16331 self.group_name, errors.ECODE_INVAL)
16333 self.needed_locks = {
16334 locking.LEVEL_INSTANCE: [],
16335 locking.LEVEL_NODEGROUP: [self.group_uuid],
16337 self.share_locks[locking.LEVEL_INSTANCE] = 1
16339 def DeclareLocks(self, level):
16340 if level == locking.LEVEL_INSTANCE:
16341 assert not self.needed_locks[locking.LEVEL_INSTANCE]
16343 # Lock instances optimistically, needs verification once group lock has
16345 if self.op.conflicts_check:
16346 self.needed_locks[locking.LEVEL_INSTANCE] = \
16347 self.cfg.GetNodeGroupInstances(self.group_uuid)
16349 def BuildHooksEnv(self):
16351 "GROUP_NAME": self.group_name,
16355 def BuildHooksNodes(self):
16356 nodes = self.cfg.GetNodeGroup(self.group_uuid).members
16357 return (nodes, nodes)
16359 def CheckPrereq(self):
16360 owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP))
16362 assert self.group_uuid in owned_groups
16364 self.group = self.cfg.GetNodeGroup(self.group_uuid)
16365 self.connected = True
16366 if self.network_uuid not in self.group.networks:
16367 self.LogWarning("Network '%s' is not mapped to group '%s'",
16368 self.network_name, self.group.name)
16369 self.connected = False
16372 if self.op.conflicts_check:
16373 _NetworkConflictCheck(self, lambda nic: nic.network == self.network_name,
16376 def Exec(self, feedback_fn):
16377 if not self.connected:
16380 del self.group.networks[self.network_uuid]
16381 self.cfg.Update(self.group, feedback_fn)
16384 #: Query type implementations
16386 constants.QR_CLUSTER: _ClusterQuery,
16387 constants.QR_INSTANCE: _InstanceQuery,
16388 constants.QR_NODE: _NodeQuery,
16389 constants.QR_GROUP: _GroupQuery,
16390 constants.QR_NETWORK: _NetworkQuery,
16391 constants.QR_OS: _OsQuery,
16392 constants.QR_EXPORT: _ExportQuery,
16395 assert set(_QUERY_IMPL.keys()) == constants.QR_VIA_OP
16398 def _GetQueryImplementation(name):
16399 """Returns the implemtnation for a query type.
16401 @param name: Query type, must be one of L{constants.QR_VIA_OP}
16405 return _QUERY_IMPL[name]
16407 raise errors.OpPrereqError("Unknown query resource '%s'" % name,
16408 errors.ECODE_INVAL)
16411 def _CheckForConflictingIp(lu, ip, node):
16412 """In case of conflicting ip raise error.
16415 @param ip: ip address
16417 @param node: node name
16420 (conf_net, _) = lu.cfg.CheckIPInNodeGroup(ip, node)
16421 if conf_net is not None:
16422 raise errors.OpPrereqError("Conflicting IP found:"
16423 " %s <> %s." % (ip, conf_net),
16424 errors.ECODE_INVAL)
16426 return (None, None)