4 # Copyright (C) 2006, 2007, 2008, 2009, 2010 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-msg=W0201,C0302
26 # W0201 since most LU attributes are defined in CheckPrereq or similar
29 # C0302: since we have waaaay to many lines in this module
43 from ganeti import ssh
44 from ganeti import utils
45 from ganeti import errors
46 from ganeti import hypervisor
47 from ganeti import locking
48 from ganeti import constants
49 from ganeti import objects
50 from ganeti import serializer
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
58 import ganeti.masterd.instance # pylint: disable-msg=W0611
60 # Common opcode attributes
62 #: output fields for a query operation
63 _POutputFields = ("output_fields", ht.NoDefault, ht.TListOf(ht.TNonEmptyString))
66 #: the shutdown timeout
67 _PShutdownTimeout = ("shutdown_timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT,
70 #: the force parameter
71 _PForce = ("force", False, ht.TBool)
73 #: a required instance name (for single-instance LUs)
74 _PInstanceName = ("instance_name", ht.NoDefault, ht.TNonEmptyString)
76 #: Whether to ignore offline nodes
77 _PIgnoreOfflineNodes = ("ignore_offline_nodes", False, ht.TBool)
79 #: a required node name (for single-node LUs)
80 _PNodeName = ("node_name", ht.NoDefault, ht.TNonEmptyString)
82 #: the migration type (live/non-live)
83 _PMigrationMode = ("mode", None,
84 ht.TOr(ht.TNone, ht.TElemOf(constants.HT_MIGRATION_MODES)))
86 #: the obsolete 'live' mode (boolean)
87 _PMigrationLive = ("live", None, ht.TMaybeBool)
91 class LogicalUnit(object):
92 """Logical Unit base class.
94 Subclasses must follow these rules:
95 - implement ExpandNames
96 - implement CheckPrereq (except when tasklets are used)
97 - implement Exec (except when tasklets are used)
98 - implement BuildHooksEnv
99 - redefine HPATH and HTYPE
100 - optionally redefine their run requirements:
101 REQ_BGL: the LU needs to hold the Big Ganeti Lock exclusively
103 Note that all commands require root permissions.
105 @ivar dry_run_result: the value (if any) that will be returned to the caller
106 in dry-run mode (signalled by opcode dry_run parameter)
107 @cvar _OP_PARAMS: a list of opcode attributes, their defaults values
108 they should get if not already defined, and types they must match
116 def __init__(self, processor, op, context, rpc):
117 """Constructor for LogicalUnit.
119 This needs to be overridden in derived classes in order to check op
123 self.proc = processor
125 self.cfg = context.cfg
126 self.context = context
128 # Dicts used to declare locking needs to mcpu
129 self.needed_locks = None
130 self.acquired_locks = {}
131 self.share_locks = dict.fromkeys(locking.LEVELS, 0)
133 self.remove_locks = {}
134 # Used to force good behavior when calling helper functions
135 self.recalculate_locks = {}
138 self.Log = processor.Log # pylint: disable-msg=C0103
139 self.LogWarning = processor.LogWarning # pylint: disable-msg=C0103
140 self.LogInfo = processor.LogInfo # pylint: disable-msg=C0103
141 self.LogStep = processor.LogStep # pylint: disable-msg=C0103
142 # support for dry-run
143 self.dry_run_result = None
144 # support for generic debug attribute
145 if (not hasattr(self.op, "debug_level") or
146 not isinstance(self.op.debug_level, int)):
147 self.op.debug_level = 0
152 # The new kind-of-type-system
153 op_id = self.op.OP_ID
154 for attr_name, aval, test in self._OP_PARAMS:
155 if not hasattr(op, attr_name):
156 if aval == ht.NoDefault:
157 raise errors.OpPrereqError("Required parameter '%s.%s' missing" %
158 (op_id, attr_name), errors.ECODE_INVAL)
164 setattr(self.op, attr_name, dval)
165 attr_val = getattr(op, attr_name)
166 if test == ht.NoType:
169 if not callable(test):
170 raise errors.ProgrammerError("Validation for parameter '%s.%s' failed,"
171 " given type is not a proper type (%s)" %
172 (op_id, attr_name, test))
173 if not test(attr_val):
174 logging.error("OpCode %s, parameter %s, has invalid type %s/value %s",
175 self.op.OP_ID, attr_name, type(attr_val), attr_val)
176 raise errors.OpPrereqError("Parameter '%s.%s' fails validation" %
177 (op_id, attr_name), errors.ECODE_INVAL)
179 self.CheckArguments()
182 """Returns the SshRunner object
186 self.__ssh = ssh.SshRunner(self.cfg.GetClusterName())
189 ssh = property(fget=__GetSSH)
191 def CheckArguments(self):
192 """Check syntactic validity for the opcode arguments.
194 This method is for doing a simple syntactic check and ensure
195 validity of opcode parameters, without any cluster-related
196 checks. While the same can be accomplished in ExpandNames and/or
197 CheckPrereq, doing these separate is better because:
199 - ExpandNames is left as as purely a lock-related function
200 - CheckPrereq is run after we have acquired locks (and possible
203 The function is allowed to change the self.op attribute so that
204 later methods can no longer worry about missing parameters.
209 def ExpandNames(self):
210 """Expand names for this LU.
212 This method is called before starting to execute the opcode, and it should
213 update all the parameters of the opcode to their canonical form (e.g. a
214 short node name must be fully expanded after this method has successfully
215 completed). This way locking, hooks, logging, ecc. can work correctly.
217 LUs which implement this method must also populate the self.needed_locks
218 member, as a dict with lock levels as keys, and a list of needed lock names
221 - use an empty dict if you don't need any lock
222 - if you don't need any lock at a particular level omit that level
223 - don't put anything for the BGL level
224 - if you want all locks at a level use locking.ALL_SET as a value
226 If you need to share locks (rather than acquire them exclusively) at one
227 level you can modify self.share_locks, setting a true value (usually 1) for
228 that level. By default locks are not shared.
230 This function can also define a list of tasklets, which then will be
231 executed in order instead of the usual LU-level CheckPrereq and Exec
232 functions, if those are not defined by the LU.
236 # Acquire all nodes and one instance
237 self.needed_locks = {
238 locking.LEVEL_NODE: locking.ALL_SET,
239 locking.LEVEL_INSTANCE: ['instance1.example.com'],
241 # Acquire just two nodes
242 self.needed_locks = {
243 locking.LEVEL_NODE: ['node1.example.com', 'node2.example.com'],
246 self.needed_locks = {} # No, you can't leave it to the default value None
249 # The implementation of this method is mandatory only if the new LU is
250 # concurrent, so that old LUs don't need to be changed all at the same
253 self.needed_locks = {} # Exclusive LUs don't need locks.
255 raise NotImplementedError
257 def DeclareLocks(self, level):
258 """Declare LU locking needs for a level
260 While most LUs can just declare their locking needs at ExpandNames time,
261 sometimes there's the need to calculate some locks after having acquired
262 the ones before. This function is called just before acquiring locks at a
263 particular level, but after acquiring the ones at lower levels, and permits
264 such calculations. It can be used to modify self.needed_locks, and by
265 default it does nothing.
267 This function is only called if you have something already set in
268 self.needed_locks for the level.
270 @param level: Locking level which is going to be locked
271 @type level: member of ganeti.locking.LEVELS
275 def CheckPrereq(self):
276 """Check prerequisites for this LU.
278 This method should check that the prerequisites for the execution
279 of this LU are fulfilled. It can do internode communication, but
280 it should be idempotent - no cluster or system changes are
283 The method should raise errors.OpPrereqError in case something is
284 not fulfilled. Its return value is ignored.
286 This method should also update all the parameters of the opcode to
287 their canonical form if it hasn't been done by ExpandNames before.
290 if self.tasklets is not None:
291 for (idx, tl) in enumerate(self.tasklets):
292 logging.debug("Checking prerequisites for tasklet %s/%s",
293 idx + 1, len(self.tasklets))
298 def Exec(self, feedback_fn):
301 This method should implement the actual work. It should raise
302 errors.OpExecError for failures that are somewhat dealt with in
306 if self.tasklets is not None:
307 for (idx, tl) in enumerate(self.tasklets):
308 logging.debug("Executing tasklet %s/%s", idx + 1, len(self.tasklets))
311 raise NotImplementedError
313 def BuildHooksEnv(self):
314 """Build hooks environment for this LU.
316 This method should return a three-node tuple consisting of: a dict
317 containing the environment that will be used for running the
318 specific hook for this LU, a list of node names on which the hook
319 should run before the execution, and a list of node names on which
320 the hook should run after the execution.
322 The keys of the dict must not have 'GANETI_' prefixed as this will
323 be handled in the hooks runner. Also note additional keys will be
324 added by the hooks runner. If the LU doesn't define any
325 environment, an empty dict (and not None) should be returned.
327 No nodes should be returned as an empty list (and not None).
329 Note that if the HPATH for a LU class is None, this function will
333 raise NotImplementedError
335 def HooksCallBack(self, phase, hook_results, feedback_fn, lu_result):
336 """Notify the LU about the results of its hooks.
338 This method is called every time a hooks phase is executed, and notifies
339 the Logical Unit about the hooks' result. The LU can then use it to alter
340 its result based on the hooks. By default the method does nothing and the
341 previous result is passed back unchanged but any LU can define it if it
342 wants to use the local cluster hook-scripts somehow.
344 @param phase: one of L{constants.HOOKS_PHASE_POST} or
345 L{constants.HOOKS_PHASE_PRE}; it denotes the hooks phase
346 @param hook_results: the results of the multi-node hooks rpc call
347 @param feedback_fn: function used send feedback back to the caller
348 @param lu_result: the previous Exec result this LU had, or None
350 @return: the new Exec result, based on the previous result
354 # API must be kept, thus we ignore the unused argument and could
355 # be a function warnings
356 # pylint: disable-msg=W0613,R0201
359 def _ExpandAndLockInstance(self):
360 """Helper function to expand and lock an instance.
362 Many LUs that work on an instance take its name in self.op.instance_name
363 and need to expand it and then declare the expanded name for locking. This
364 function does it, and then updates self.op.instance_name to the expanded
365 name. It also initializes needed_locks as a dict, if this hasn't been done
369 if self.needed_locks is None:
370 self.needed_locks = {}
372 assert locking.LEVEL_INSTANCE not in self.needed_locks, \
373 "_ExpandAndLockInstance called with instance-level locks set"
374 self.op.instance_name = _ExpandInstanceName(self.cfg,
375 self.op.instance_name)
376 self.needed_locks[locking.LEVEL_INSTANCE] = self.op.instance_name
378 def _LockInstancesNodes(self, primary_only=False):
379 """Helper function to declare instances' nodes for locking.
381 This function should be called after locking one or more instances to lock
382 their nodes. Its effect is populating self.needed_locks[locking.LEVEL_NODE]
383 with all primary or secondary nodes for instances already locked and
384 present in self.needed_locks[locking.LEVEL_INSTANCE].
386 It should be called from DeclareLocks, and for safety only works if
387 self.recalculate_locks[locking.LEVEL_NODE] is set.
389 In the future it may grow parameters to just lock some instance's nodes, or
390 to just lock primaries or secondary nodes, if needed.
392 If should be called in DeclareLocks in a way similar to::
394 if level == locking.LEVEL_NODE:
395 self._LockInstancesNodes()
397 @type primary_only: boolean
398 @param primary_only: only lock primary nodes of locked instances
401 assert locking.LEVEL_NODE in self.recalculate_locks, \
402 "_LockInstancesNodes helper function called with no nodes to recalculate"
404 # TODO: check if we're really been called with the instance locks held
406 # For now we'll replace self.needed_locks[locking.LEVEL_NODE], but in the
407 # future we might want to have different behaviors depending on the value
408 # of self.recalculate_locks[locking.LEVEL_NODE]
410 for instance_name in self.acquired_locks[locking.LEVEL_INSTANCE]:
411 instance = self.context.cfg.GetInstanceInfo(instance_name)
412 wanted_nodes.append(instance.primary_node)
414 wanted_nodes.extend(instance.secondary_nodes)
416 if self.recalculate_locks[locking.LEVEL_NODE] == constants.LOCKS_REPLACE:
417 self.needed_locks[locking.LEVEL_NODE] = wanted_nodes
418 elif self.recalculate_locks[locking.LEVEL_NODE] == constants.LOCKS_APPEND:
419 self.needed_locks[locking.LEVEL_NODE].extend(wanted_nodes)
421 del self.recalculate_locks[locking.LEVEL_NODE]
424 class NoHooksLU(LogicalUnit): # pylint: disable-msg=W0223
425 """Simple LU which runs no hooks.
427 This LU is intended as a parent for other LogicalUnits which will
428 run no hooks, in order to reduce duplicate code.
434 def BuildHooksEnv(self):
435 """Empty BuildHooksEnv for NoHooksLu.
437 This just raises an error.
440 assert False, "BuildHooksEnv called for NoHooksLUs"
444 """Tasklet base class.
446 Tasklets are subcomponents for LUs. LUs can consist entirely of tasklets or
447 they can mix legacy code with tasklets. Locking needs to be done in the LU,
448 tasklets know nothing about locks.
450 Subclasses must follow these rules:
451 - Implement CheckPrereq
455 def __init__(self, lu):
462 def CheckPrereq(self):
463 """Check prerequisites for this tasklets.
465 This method should check whether the prerequisites for the execution of
466 this tasklet are fulfilled. It can do internode communication, but it
467 should be idempotent - no cluster or system changes are allowed.
469 The method should raise errors.OpPrereqError in case something is not
470 fulfilled. Its return value is ignored.
472 This method should also update all parameters to their canonical form if it
473 hasn't been done before.
478 def Exec(self, feedback_fn):
479 """Execute the tasklet.
481 This method should implement the actual work. It should raise
482 errors.OpExecError for failures that are somewhat dealt with in code, or
486 raise NotImplementedError
489 def _GetWantedNodes(lu, nodes):
490 """Returns list of checked and expanded node names.
492 @type lu: L{LogicalUnit}
493 @param lu: the logical unit on whose behalf we execute
495 @param nodes: list of node names or None for all nodes
497 @return: the list of nodes, sorted
498 @raise errors.ProgrammerError: if the nodes parameter is wrong type
502 raise errors.ProgrammerError("_GetWantedNodes should only be called with a"
503 " non-empty list of nodes whose name is to be expanded.")
505 wanted = [_ExpandNodeName(lu.cfg, name) for name in nodes]
506 return utils.NiceSort(wanted)
509 def _GetWantedInstances(lu, instances):
510 """Returns list of checked and expanded instance names.
512 @type lu: L{LogicalUnit}
513 @param lu: the logical unit on whose behalf we execute
514 @type instances: list
515 @param instances: list of instance names or None for all instances
517 @return: the list of instances, sorted
518 @raise errors.OpPrereqError: if the instances parameter is wrong type
519 @raise errors.OpPrereqError: if any of the passed instances is not found
523 wanted = [_ExpandInstanceName(lu.cfg, name) for name in instances]
525 wanted = utils.NiceSort(lu.cfg.GetInstanceList())
529 def _GetUpdatedParams(old_params, update_dict,
530 use_default=True, use_none=False):
531 """Return the new version of a parameter dictionary.
533 @type old_params: dict
534 @param old_params: old parameters
535 @type update_dict: dict
536 @param update_dict: dict containing new parameter values, or
537 constants.VALUE_DEFAULT to reset the parameter to its default
539 @param use_default: boolean
540 @type use_default: whether to recognise L{constants.VALUE_DEFAULT}
541 values as 'to be deleted' values
542 @param use_none: boolean
543 @type use_none: whether to recognise C{None} values as 'to be
546 @return: the new parameter dictionary
549 params_copy = copy.deepcopy(old_params)
550 for key, val in update_dict.iteritems():
551 if ((use_default and val == constants.VALUE_DEFAULT) or
552 (use_none and val is None)):
558 params_copy[key] = val
562 def _CheckOutputFields(static, dynamic, selected):
563 """Checks whether all selected fields are valid.
565 @type static: L{utils.FieldSet}
566 @param static: static fields set
567 @type dynamic: L{utils.FieldSet}
568 @param dynamic: dynamic fields set
575 delta = f.NonMatching(selected)
577 raise errors.OpPrereqError("Unknown output fields selected: %s"
578 % ",".join(delta), errors.ECODE_INVAL)
581 def _CheckGlobalHvParams(params):
582 """Validates that given hypervisor params are not global ones.
584 This will ensure that instances don't get customised versions of
588 used_globals = constants.HVC_GLOBALS.intersection(params)
590 msg = ("The following hypervisor parameters are global and cannot"
591 " be customized at instance level, please modify them at"
592 " cluster level: %s" % utils.CommaJoin(used_globals))
593 raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
596 def _CheckNodeOnline(lu, node):
597 """Ensure that a given node is online.
599 @param lu: the LU on behalf of which we make the check
600 @param node: the node to check
601 @raise errors.OpPrereqError: if the node is offline
604 if lu.cfg.GetNodeInfo(node).offline:
605 raise errors.OpPrereqError("Can't use offline node %s" % node,
609 def _CheckNodeNotDrained(lu, node):
610 """Ensure that a given node is not drained.
612 @param lu: the LU on behalf of which we make the check
613 @param node: the node to check
614 @raise errors.OpPrereqError: if the node is drained
617 if lu.cfg.GetNodeInfo(node).drained:
618 raise errors.OpPrereqError("Can't use drained node %s" % node,
622 def _CheckNodeHasOS(lu, node, os_name, force_variant):
623 """Ensure that a node supports a given OS.
625 @param lu: the LU on behalf of which we make the check
626 @param node: the node to check
627 @param os_name: the OS to query about
628 @param force_variant: whether to ignore variant errors
629 @raise errors.OpPrereqError: if the node is not supporting the OS
632 result = lu.rpc.call_os_get(node, os_name)
633 result.Raise("OS '%s' not in supported OS list for node %s" %
635 prereq=True, ecode=errors.ECODE_INVAL)
636 if not force_variant:
637 _CheckOSVariant(result.payload, os_name)
640 def _RequireFileStorage():
641 """Checks that file storage is enabled.
643 @raise errors.OpPrereqError: when file storage is disabled
646 if not constants.ENABLE_FILE_STORAGE:
647 raise errors.OpPrereqError("File storage disabled at configure time",
651 def _CheckDiskTemplate(template):
652 """Ensure a given disk template is valid.
655 if template not in constants.DISK_TEMPLATES:
656 msg = ("Invalid disk template name '%s', valid templates are: %s" %
657 (template, utils.CommaJoin(constants.DISK_TEMPLATES)))
658 raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
659 if template == constants.DT_FILE:
660 _RequireFileStorage()
664 def _CheckStorageType(storage_type):
665 """Ensure a given storage type is valid.
668 if storage_type not in constants.VALID_STORAGE_TYPES:
669 raise errors.OpPrereqError("Unknown storage type: %s" % storage_type,
671 if storage_type == constants.ST_FILE:
672 _RequireFileStorage()
676 def _GetClusterDomainSecret():
677 """Reads the cluster domain secret.
680 return utils.ReadOneLineFile(constants.CLUSTER_DOMAIN_SECRET_FILE,
684 def _CheckInstanceDown(lu, instance, reason):
685 """Ensure that an instance is not running."""
686 if instance.admin_up:
687 raise errors.OpPrereqError("Instance %s is marked to be up, %s" %
688 (instance.name, reason), errors.ECODE_STATE)
690 pnode = instance.primary_node
691 ins_l = lu.rpc.call_instance_list([pnode], [instance.hypervisor])[pnode]
692 ins_l.Raise("Can't contact node %s for instance information" % pnode,
693 prereq=True, ecode=errors.ECODE_ENVIRON)
695 if instance.name in ins_l.payload:
696 raise errors.OpPrereqError("Instance %s is running, %s" %
697 (instance.name, reason), errors.ECODE_STATE)
700 def _ExpandItemName(fn, name, kind):
701 """Expand an item name.
703 @param fn: the function to use for expansion
704 @param name: requested item name
705 @param kind: text description ('Node' or 'Instance')
706 @return: the resolved (full) name
707 @raise errors.OpPrereqError: if the item is not found
711 if full_name is None:
712 raise errors.OpPrereqError("%s '%s' not known" % (kind, name),
717 def _ExpandNodeName(cfg, name):
718 """Wrapper over L{_ExpandItemName} for nodes."""
719 return _ExpandItemName(cfg.ExpandNodeName, name, "Node")
722 def _ExpandInstanceName(cfg, name):
723 """Wrapper over L{_ExpandItemName} for instance."""
724 return _ExpandItemName(cfg.ExpandInstanceName, name, "Instance")
727 def _BuildInstanceHookEnv(name, primary_node, secondary_nodes, os_type, status,
728 memory, vcpus, nics, disk_template, disks,
729 bep, hvp, hypervisor_name):
730 """Builds instance related env variables for hooks
732 This builds the hook environment from individual variables.
735 @param name: the name of the instance
736 @type primary_node: string
737 @param primary_node: the name of the instance's primary node
738 @type secondary_nodes: list
739 @param secondary_nodes: list of secondary nodes as strings
740 @type os_type: string
741 @param os_type: the name of the instance's OS
742 @type status: boolean
743 @param status: the should_run status of the instance
745 @param memory: the memory size of the instance
747 @param vcpus: the count of VCPUs the instance has
749 @param nics: list of tuples (ip, mac, mode, link) representing
750 the NICs the instance has
751 @type disk_template: string
752 @param disk_template: the disk template of the instance
754 @param disks: the list of (size, mode) pairs
756 @param bep: the backend parameters for the instance
758 @param hvp: the hypervisor parameters for the instance
759 @type hypervisor_name: string
760 @param hypervisor_name: the hypervisor for the instance
762 @return: the hook environment for this instance
771 "INSTANCE_NAME": name,
772 "INSTANCE_PRIMARY": primary_node,
773 "INSTANCE_SECONDARIES": " ".join(secondary_nodes),
774 "INSTANCE_OS_TYPE": os_type,
775 "INSTANCE_STATUS": str_status,
776 "INSTANCE_MEMORY": memory,
777 "INSTANCE_VCPUS": vcpus,
778 "INSTANCE_DISK_TEMPLATE": disk_template,
779 "INSTANCE_HYPERVISOR": hypervisor_name,
783 nic_count = len(nics)
784 for idx, (ip, mac, mode, link) in enumerate(nics):
787 env["INSTANCE_NIC%d_IP" % idx] = ip
788 env["INSTANCE_NIC%d_MAC" % idx] = mac
789 env["INSTANCE_NIC%d_MODE" % idx] = mode
790 env["INSTANCE_NIC%d_LINK" % idx] = link
791 if mode == constants.NIC_MODE_BRIDGED:
792 env["INSTANCE_NIC%d_BRIDGE" % idx] = link
796 env["INSTANCE_NIC_COUNT"] = nic_count
799 disk_count = len(disks)
800 for idx, (size, mode) in enumerate(disks):
801 env["INSTANCE_DISK%d_SIZE" % idx] = size
802 env["INSTANCE_DISK%d_MODE" % idx] = mode
806 env["INSTANCE_DISK_COUNT"] = disk_count
808 for source, kind in [(bep, "BE"), (hvp, "HV")]:
809 for key, value in source.items():
810 env["INSTANCE_%s_%s" % (kind, key)] = value
815 def _NICListToTuple(lu, nics):
816 """Build a list of nic information tuples.
818 This list is suitable to be passed to _BuildInstanceHookEnv or as a return
819 value in LUQueryInstanceData.
821 @type lu: L{LogicalUnit}
822 @param lu: the logical unit on whose behalf we execute
823 @type nics: list of L{objects.NIC}
824 @param nics: list of nics to convert to hooks tuples
828 cluster = lu.cfg.GetClusterInfo()
832 filled_params = cluster.SimpleFillNIC(nic.nicparams)
833 mode = filled_params[constants.NIC_MODE]
834 link = filled_params[constants.NIC_LINK]
835 hooks_nics.append((ip, mac, mode, link))
839 def _BuildInstanceHookEnvByObject(lu, instance, override=None):
840 """Builds instance related env variables for hooks from an object.
842 @type lu: L{LogicalUnit}
843 @param lu: the logical unit on whose behalf we execute
844 @type instance: L{objects.Instance}
845 @param instance: the instance for which we should build the
848 @param override: dictionary with key/values that will override
851 @return: the hook environment dictionary
854 cluster = lu.cfg.GetClusterInfo()
855 bep = cluster.FillBE(instance)
856 hvp = cluster.FillHV(instance)
858 'name': instance.name,
859 'primary_node': instance.primary_node,
860 'secondary_nodes': instance.secondary_nodes,
861 'os_type': instance.os,
862 'status': instance.admin_up,
863 'memory': bep[constants.BE_MEMORY],
864 'vcpus': bep[constants.BE_VCPUS],
865 'nics': _NICListToTuple(lu, instance.nics),
866 'disk_template': instance.disk_template,
867 'disks': [(disk.size, disk.mode) for disk in instance.disks],
870 'hypervisor_name': instance.hypervisor,
873 args.update(override)
874 return _BuildInstanceHookEnv(**args) # pylint: disable-msg=W0142
877 def _AdjustCandidatePool(lu, exceptions):
878 """Adjust the candidate pool after node operations.
881 mod_list = lu.cfg.MaintainCandidatePool(exceptions)
883 lu.LogInfo("Promoted nodes to master candidate role: %s",
884 utils.CommaJoin(node.name for node in mod_list))
885 for name in mod_list:
886 lu.context.ReaddNode(name)
887 mc_now, mc_max, _ = lu.cfg.GetMasterCandidateStats(exceptions)
889 lu.LogInfo("Note: more nodes are candidates (%d) than desired (%d)" %
893 def _DecideSelfPromotion(lu, exceptions=None):
894 """Decide whether I should promote myself as a master candidate.
897 cp_size = lu.cfg.GetClusterInfo().candidate_pool_size
898 mc_now, mc_should, _ = lu.cfg.GetMasterCandidateStats(exceptions)
899 # the new node will increase mc_max with one, so:
900 mc_should = min(mc_should + 1, cp_size)
901 return mc_now < mc_should
904 def _CheckNicsBridgesExist(lu, target_nics, target_node):
905 """Check that the brigdes needed by a list of nics exist.
908 cluster = lu.cfg.GetClusterInfo()
909 paramslist = [cluster.SimpleFillNIC(nic.nicparams) for nic in target_nics]
910 brlist = [params[constants.NIC_LINK] for params in paramslist
911 if params[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED]
913 result = lu.rpc.call_bridges_exist(target_node, brlist)
914 result.Raise("Error checking bridges on destination node '%s'" %
915 target_node, prereq=True, ecode=errors.ECODE_ENVIRON)
918 def _CheckInstanceBridgesExist(lu, instance, node=None):
919 """Check that the brigdes needed by an instance exist.
923 node = instance.primary_node
924 _CheckNicsBridgesExist(lu, instance.nics, node)
927 def _CheckOSVariant(os_obj, name):
928 """Check whether an OS name conforms to the os variants specification.
930 @type os_obj: L{objects.OS}
931 @param os_obj: OS object to check
933 @param name: OS name passed by the user, to check for validity
936 if not os_obj.supported_variants:
938 variant = objects.OS.GetVariant(name)
940 raise errors.OpPrereqError("OS name must include a variant",
943 if variant not in os_obj.supported_variants:
944 raise errors.OpPrereqError("Unsupported OS variant", errors.ECODE_INVAL)
947 def _GetNodeInstancesInner(cfg, fn):
948 return [i for i in cfg.GetAllInstancesInfo().values() if fn(i)]
951 def _GetNodeInstances(cfg, node_name):
952 """Returns a list of all primary and secondary instances on a node.
956 return _GetNodeInstancesInner(cfg, lambda inst: node_name in inst.all_nodes)
959 def _GetNodePrimaryInstances(cfg, node_name):
960 """Returns primary instances on a node.
963 return _GetNodeInstancesInner(cfg,
964 lambda inst: node_name == inst.primary_node)
967 def _GetNodeSecondaryInstances(cfg, node_name):
968 """Returns secondary instances on a node.
971 return _GetNodeInstancesInner(cfg,
972 lambda inst: node_name in inst.secondary_nodes)
975 def _GetStorageTypeArgs(cfg, storage_type):
976 """Returns the arguments for a storage type.
979 # Special case for file storage
980 if storage_type == constants.ST_FILE:
981 # storage.FileStorage wants a list of storage directories
982 return [[cfg.GetFileStorageDir()]]
987 def _FindFaultyInstanceDisks(cfg, rpc, instance, node_name, prereq):
990 for dev in instance.disks:
991 cfg.SetDiskID(dev, node_name)
993 result = rpc.call_blockdev_getmirrorstatus(node_name, instance.disks)
994 result.Raise("Failed to get disk status from node %s" % node_name,
995 prereq=prereq, ecode=errors.ECODE_ENVIRON)
997 for idx, bdev_status in enumerate(result.payload):
998 if bdev_status and bdev_status.ldisk_status == constants.LDS_FAULTY:
1004 def _CheckIAllocatorOrNode(lu, iallocator_slot, node_slot):
1005 """Check the sanity of iallocator and node arguments and use the
1006 cluster-wide iallocator if appropriate.
1008 Check that at most one of (iallocator, node) is specified. If none is
1009 specified, then the LU's opcode's iallocator slot is filled with the
1010 cluster-wide default iallocator.
1012 @type iallocator_slot: string
1013 @param iallocator_slot: the name of the opcode iallocator slot
1014 @type node_slot: string
1015 @param node_slot: the name of the opcode target node slot
1018 node = getattr(lu.op, node_slot, None)
1019 iallocator = getattr(lu.op, iallocator_slot, None)
1021 if node is not None and iallocator is not None:
1022 raise errors.OpPrereqError("Do not specify both, iallocator and node.",
1024 elif node is None and iallocator is None:
1025 default_iallocator = lu.cfg.GetDefaultIAllocator()
1026 if default_iallocator:
1027 setattr(lu.op, iallocator_slot, default_iallocator)
1029 raise errors.OpPrereqError("No iallocator or node given and no"
1030 " cluster-wide default iallocator found."
1031 " Please specify either an iallocator or a"
1032 " node, or set a cluster-wide default"
1036 class LUPostInitCluster(LogicalUnit):
1037 """Logical unit for running hooks after cluster initialization.
1040 HPATH = "cluster-init"
1041 HTYPE = constants.HTYPE_CLUSTER
1043 def BuildHooksEnv(self):
1047 env = {"OP_TARGET": self.cfg.GetClusterName()}
1048 mn = self.cfg.GetMasterNode()
1049 return env, [], [mn]
1051 def Exec(self, feedback_fn):
1058 class LUDestroyCluster(LogicalUnit):
1059 """Logical unit for destroying the cluster.
1062 HPATH = "cluster-destroy"
1063 HTYPE = constants.HTYPE_CLUSTER
1065 def BuildHooksEnv(self):
1069 env = {"OP_TARGET": self.cfg.GetClusterName()}
1072 def CheckPrereq(self):
1073 """Check prerequisites.
1075 This checks whether the cluster is empty.
1077 Any errors are signaled by raising errors.OpPrereqError.
1080 master = self.cfg.GetMasterNode()
1082 nodelist = self.cfg.GetNodeList()
1083 if len(nodelist) != 1 or nodelist[0] != master:
1084 raise errors.OpPrereqError("There are still %d node(s) in"
1085 " this cluster." % (len(nodelist) - 1),
1087 instancelist = self.cfg.GetInstanceList()
1089 raise errors.OpPrereqError("There are still %d instance(s) in"
1090 " this cluster." % len(instancelist),
1093 def Exec(self, feedback_fn):
1094 """Destroys the cluster.
1097 master = self.cfg.GetMasterNode()
1099 # Run post hooks on master node before it's removed
1100 hm = self.proc.hmclass(self.rpc.call_hooks_runner, self)
1102 hm.RunPhase(constants.HOOKS_PHASE_POST, [master])
1104 # pylint: disable-msg=W0702
1105 self.LogWarning("Errors occurred running hooks on %s" % master)
1107 result = self.rpc.call_node_stop_master(master, False)
1108 result.Raise("Could not disable the master role")
1113 def _VerifyCertificate(filename):
1114 """Verifies a certificate for LUVerifyCluster.
1116 @type filename: string
1117 @param filename: Path to PEM file
1121 cert = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM,
1122 utils.ReadFile(filename))
1123 except Exception, err: # pylint: disable-msg=W0703
1124 return (LUVerifyCluster.ETYPE_ERROR,
1125 "Failed to load X509 certificate %s: %s" % (filename, err))
1128 utils.VerifyX509Certificate(cert, constants.SSL_CERT_EXPIRATION_WARN,
1129 constants.SSL_CERT_EXPIRATION_ERROR)
1132 fnamemsg = "While verifying %s: %s" % (filename, msg)
1137 return (None, fnamemsg)
1138 elif errcode == utils.CERT_WARNING:
1139 return (LUVerifyCluster.ETYPE_WARNING, fnamemsg)
1140 elif errcode == utils.CERT_ERROR:
1141 return (LUVerifyCluster.ETYPE_ERROR, fnamemsg)
1143 raise errors.ProgrammerError("Unhandled certificate error code %r" % errcode)
1146 class LUVerifyCluster(LogicalUnit):
1147 """Verifies the cluster status.
1150 HPATH = "cluster-verify"
1151 HTYPE = constants.HTYPE_CLUSTER
1153 ("skip_checks", ht.EmptyList,
1154 ht.TListOf(ht.TElemOf(constants.VERIFY_OPTIONAL_CHECKS))),
1155 ("verbose", False, ht.TBool),
1156 ("error_codes", False, ht.TBool),
1157 ("debug_simulate_errors", False, ht.TBool),
1161 TCLUSTER = "cluster"
1163 TINSTANCE = "instance"
1165 ECLUSTERCFG = (TCLUSTER, "ECLUSTERCFG")
1166 ECLUSTERCERT = (TCLUSTER, "ECLUSTERCERT")
1167 EINSTANCEBADNODE = (TINSTANCE, "EINSTANCEBADNODE")
1168 EINSTANCEDOWN = (TINSTANCE, "EINSTANCEDOWN")
1169 EINSTANCELAYOUT = (TINSTANCE, "EINSTANCELAYOUT")
1170 EINSTANCEMISSINGDISK = (TINSTANCE, "EINSTANCEMISSINGDISK")
1171 EINSTANCEMISSINGDISK = (TINSTANCE, "EINSTANCEMISSINGDISK")
1172 EINSTANCEWRONGNODE = (TINSTANCE, "EINSTANCEWRONGNODE")
1173 ENODEDRBD = (TNODE, "ENODEDRBD")
1174 ENODEDRBDHELPER = (TNODE, "ENODEDRBDHELPER")
1175 ENODEFILECHECK = (TNODE, "ENODEFILECHECK")
1176 ENODEHOOKS = (TNODE, "ENODEHOOKS")
1177 ENODEHV = (TNODE, "ENODEHV")
1178 ENODELVM = (TNODE, "ENODELVM")
1179 ENODEN1 = (TNODE, "ENODEN1")
1180 ENODENET = (TNODE, "ENODENET")
1181 ENODEOS = (TNODE, "ENODEOS")
1182 ENODEORPHANINSTANCE = (TNODE, "ENODEORPHANINSTANCE")
1183 ENODEORPHANLV = (TNODE, "ENODEORPHANLV")
1184 ENODERPC = (TNODE, "ENODERPC")
1185 ENODESSH = (TNODE, "ENODESSH")
1186 ENODEVERSION = (TNODE, "ENODEVERSION")
1187 ENODESETUP = (TNODE, "ENODESETUP")
1188 ENODETIME = (TNODE, "ENODETIME")
1190 ETYPE_FIELD = "code"
1191 ETYPE_ERROR = "ERROR"
1192 ETYPE_WARNING = "WARNING"
1194 class NodeImage(object):
1195 """A class representing the logical and physical status of a node.
1198 @ivar name: the node name to which this object refers
1199 @ivar volumes: a structure as returned from
1200 L{ganeti.backend.GetVolumeList} (runtime)
1201 @ivar instances: a list of running instances (runtime)
1202 @ivar pinst: list of configured primary instances (config)
1203 @ivar sinst: list of configured secondary instances (config)
1204 @ivar sbp: diction of {secondary-node: list of instances} of all peers
1205 of this node (config)
1206 @ivar mfree: free memory, as reported by hypervisor (runtime)
1207 @ivar dfree: free disk, as reported by the node (runtime)
1208 @ivar offline: the offline status (config)
1209 @type rpc_fail: boolean
1210 @ivar rpc_fail: whether the RPC verify call was successfull (overall,
1211 not whether the individual keys were correct) (runtime)
1212 @type lvm_fail: boolean
1213 @ivar lvm_fail: whether the RPC call didn't return valid LVM data
1214 @type hyp_fail: boolean
1215 @ivar hyp_fail: whether the RPC call didn't return the instance list
1216 @type ghost: boolean
1217 @ivar ghost: whether this is a known node or not (config)
1218 @type os_fail: boolean
1219 @ivar os_fail: whether the RPC call didn't return valid OS data
1221 @ivar oslist: list of OSes as diagnosed by DiagnoseOS
1224 def __init__(self, offline=False, name=None):
1233 self.offline = offline
1234 self.rpc_fail = False
1235 self.lvm_fail = False
1236 self.hyp_fail = False
1238 self.os_fail = False
1241 def ExpandNames(self):
1242 self.needed_locks = {
1243 locking.LEVEL_NODE: locking.ALL_SET,
1244 locking.LEVEL_INSTANCE: locking.ALL_SET,
1246 self.share_locks = dict.fromkeys(locking.LEVELS, 1)
1248 def _Error(self, ecode, item, msg, *args, **kwargs):
1249 """Format an error message.
1251 Based on the opcode's error_codes parameter, either format a
1252 parseable error code, or a simpler error string.
1254 This must be called only from Exec and functions called from Exec.
1257 ltype = kwargs.get(self.ETYPE_FIELD, self.ETYPE_ERROR)
1259 # first complete the msg
1262 # then format the whole message
1263 if self.op.error_codes:
1264 msg = "%s:%s:%s:%s:%s" % (ltype, etxt, itype, item, msg)
1270 msg = "%s: %s%s: %s" % (ltype, itype, item, msg)
1271 # and finally report it via the feedback_fn
1272 self._feedback_fn(" - %s" % msg)
1274 def _ErrorIf(self, cond, *args, **kwargs):
1275 """Log an error message if the passed condition is True.
1278 cond = bool(cond) or self.op.debug_simulate_errors
1280 self._Error(*args, **kwargs)
1281 # do not mark the operation as failed for WARN cases only
1282 if kwargs.get(self.ETYPE_FIELD, self.ETYPE_ERROR) == self.ETYPE_ERROR:
1283 self.bad = self.bad or cond
1285 def _VerifyNode(self, ninfo, nresult):
1286 """Perform some basic validation on data returned from a node.
1288 - check the result data structure is well formed and has all the
1290 - check ganeti version
1292 @type ninfo: L{objects.Node}
1293 @param ninfo: the node to check
1294 @param nresult: the results from the node
1296 @return: whether overall this call was successful (and we can expect
1297 reasonable values in the respose)
1301 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1303 # main result, nresult should be a non-empty dict
1304 test = not nresult or not isinstance(nresult, dict)
1305 _ErrorIf(test, self.ENODERPC, node,
1306 "unable to verify node: no data returned")
1310 # compares ganeti version
1311 local_version = constants.PROTOCOL_VERSION
1312 remote_version = nresult.get("version", None)
1313 test = not (remote_version and
1314 isinstance(remote_version, (list, tuple)) and
1315 len(remote_version) == 2)
1316 _ErrorIf(test, self.ENODERPC, node,
1317 "connection to node returned invalid data")
1321 test = local_version != remote_version[0]
1322 _ErrorIf(test, self.ENODEVERSION, node,
1323 "incompatible protocol versions: master %s,"
1324 " node %s", local_version, remote_version[0])
1328 # node seems compatible, we can actually try to look into its results
1330 # full package version
1331 self._ErrorIf(constants.RELEASE_VERSION != remote_version[1],
1332 self.ENODEVERSION, node,
1333 "software version mismatch: master %s, node %s",
1334 constants.RELEASE_VERSION, remote_version[1],
1335 code=self.ETYPE_WARNING)
1337 hyp_result = nresult.get(constants.NV_HYPERVISOR, None)
1338 if isinstance(hyp_result, dict):
1339 for hv_name, hv_result in hyp_result.iteritems():
1340 test = hv_result is not None
1341 _ErrorIf(test, self.ENODEHV, node,
1342 "hypervisor %s verify failure: '%s'", hv_name, hv_result)
1345 test = nresult.get(constants.NV_NODESETUP,
1346 ["Missing NODESETUP results"])
1347 _ErrorIf(test, self.ENODESETUP, node, "node setup error: %s",
1352 def _VerifyNodeTime(self, ninfo, nresult,
1353 nvinfo_starttime, nvinfo_endtime):
1354 """Check the node time.
1356 @type ninfo: L{objects.Node}
1357 @param ninfo: the node to check
1358 @param nresult: the remote results for the node
1359 @param nvinfo_starttime: the start time of the RPC call
1360 @param nvinfo_endtime: the end time of the RPC call
1364 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1366 ntime = nresult.get(constants.NV_TIME, None)
1368 ntime_merged = utils.MergeTime(ntime)
1369 except (ValueError, TypeError):
1370 _ErrorIf(True, self.ENODETIME, node, "Node returned invalid time")
1373 if ntime_merged < (nvinfo_starttime - constants.NODE_MAX_CLOCK_SKEW):
1374 ntime_diff = "%.01fs" % abs(nvinfo_starttime - ntime_merged)
1375 elif ntime_merged > (nvinfo_endtime + constants.NODE_MAX_CLOCK_SKEW):
1376 ntime_diff = "%.01fs" % abs(ntime_merged - nvinfo_endtime)
1380 _ErrorIf(ntime_diff is not None, self.ENODETIME, node,
1381 "Node time diverges by at least %s from master node time",
1384 def _VerifyNodeLVM(self, ninfo, nresult, vg_name):
1385 """Check the node time.
1387 @type ninfo: L{objects.Node}
1388 @param ninfo: the node to check
1389 @param nresult: the remote results for the node
1390 @param vg_name: the configured VG name
1397 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1399 # checks vg existence and size > 20G
1400 vglist = nresult.get(constants.NV_VGLIST, None)
1402 _ErrorIf(test, self.ENODELVM, node, "unable to check volume groups")
1404 vgstatus = utils.CheckVolumeGroupSize(vglist, vg_name,
1405 constants.MIN_VG_SIZE)
1406 _ErrorIf(vgstatus, self.ENODELVM, node, vgstatus)
1409 pvlist = nresult.get(constants.NV_PVLIST, None)
1410 test = pvlist is None
1411 _ErrorIf(test, self.ENODELVM, node, "Can't get PV list from node")
1413 # check that ':' is not present in PV names, since it's a
1414 # special character for lvcreate (denotes the range of PEs to
1416 for _, pvname, owner_vg in pvlist:
1417 test = ":" in pvname
1418 _ErrorIf(test, self.ENODELVM, node, "Invalid character ':' in PV"
1419 " '%s' of VG '%s'", pvname, owner_vg)
1421 def _VerifyNodeNetwork(self, ninfo, nresult):
1422 """Check the node time.
1424 @type ninfo: L{objects.Node}
1425 @param ninfo: the node to check
1426 @param nresult: the remote results for the node
1430 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1432 test = constants.NV_NODELIST not in nresult
1433 _ErrorIf(test, self.ENODESSH, node,
1434 "node hasn't returned node ssh connectivity data")
1436 if nresult[constants.NV_NODELIST]:
1437 for a_node, a_msg in nresult[constants.NV_NODELIST].items():
1438 _ErrorIf(True, self.ENODESSH, node,
1439 "ssh communication with node '%s': %s", a_node, a_msg)
1441 test = constants.NV_NODENETTEST not in nresult
1442 _ErrorIf(test, self.ENODENET, node,
1443 "node hasn't returned node tcp connectivity data")
1445 if nresult[constants.NV_NODENETTEST]:
1446 nlist = utils.NiceSort(nresult[constants.NV_NODENETTEST].keys())
1448 _ErrorIf(True, self.ENODENET, node,
1449 "tcp communication with node '%s': %s",
1450 anode, nresult[constants.NV_NODENETTEST][anode])
1452 test = constants.NV_MASTERIP not in nresult
1453 _ErrorIf(test, self.ENODENET, node,
1454 "node hasn't returned node master IP reachability data")
1456 if not nresult[constants.NV_MASTERIP]:
1457 if node == self.master_node:
1458 msg = "the master node cannot reach the master IP (not configured?)"
1460 msg = "cannot reach the master IP"
1461 _ErrorIf(True, self.ENODENET, node, msg)
1464 def _VerifyInstance(self, instance, instanceconfig, node_image):
1465 """Verify an instance.
1467 This function checks to see if the required block devices are
1468 available on the instance's node.
1471 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1472 node_current = instanceconfig.primary_node
1474 node_vol_should = {}
1475 instanceconfig.MapLVsByNode(node_vol_should)
1477 for node in node_vol_should:
1478 n_img = node_image[node]
1479 if n_img.offline or n_img.rpc_fail or n_img.lvm_fail:
1480 # ignore missing volumes on offline or broken nodes
1482 for volume in node_vol_should[node]:
1483 test = volume not in n_img.volumes
1484 _ErrorIf(test, self.EINSTANCEMISSINGDISK, instance,
1485 "volume %s missing on node %s", volume, node)
1487 if instanceconfig.admin_up:
1488 pri_img = node_image[node_current]
1489 test = instance not in pri_img.instances and not pri_img.offline
1490 _ErrorIf(test, self.EINSTANCEDOWN, instance,
1491 "instance not running on its primary node %s",
1494 for node, n_img in node_image.items():
1495 if (not node == node_current):
1496 test = instance in n_img.instances
1497 _ErrorIf(test, self.EINSTANCEWRONGNODE, instance,
1498 "instance should not run on node %s", node)
1500 def _VerifyOrphanVolumes(self, node_vol_should, node_image, reserved):
1501 """Verify if there are any unknown volumes in the cluster.
1503 The .os, .swap and backup volumes are ignored. All other volumes are
1504 reported as unknown.
1506 @type reserved: L{ganeti.utils.FieldSet}
1507 @param reserved: a FieldSet of reserved volume names
1510 for node, n_img in node_image.items():
1511 if n_img.offline or n_img.rpc_fail or n_img.lvm_fail:
1512 # skip non-healthy nodes
1514 for volume in n_img.volumes:
1515 test = ((node not in node_vol_should or
1516 volume not in node_vol_should[node]) and
1517 not reserved.Matches(volume))
1518 self._ErrorIf(test, self.ENODEORPHANLV, node,
1519 "volume %s is unknown", volume)
1521 def _VerifyOrphanInstances(self, instancelist, node_image):
1522 """Verify the list of running instances.
1524 This checks what instances are running but unknown to the cluster.
1527 for node, n_img in node_image.items():
1528 for o_inst in n_img.instances:
1529 test = o_inst not in instancelist
1530 self._ErrorIf(test, self.ENODEORPHANINSTANCE, node,
1531 "instance %s on node %s should not exist", o_inst, node)
1533 def _VerifyNPlusOneMemory(self, node_image, instance_cfg):
1534 """Verify N+1 Memory Resilience.
1536 Check that if one single node dies we can still start all the
1537 instances it was primary for.
1540 for node, n_img in node_image.items():
1541 # This code checks that every node which is now listed as
1542 # secondary has enough memory to host all instances it is
1543 # supposed to should a single other node in the cluster fail.
1544 # FIXME: not ready for failover to an arbitrary node
1545 # FIXME: does not support file-backed instances
1546 # WARNING: we currently take into account down instances as well
1547 # as up ones, considering that even if they're down someone
1548 # might want to start them even in the event of a node failure.
1549 for prinode, instances in n_img.sbp.items():
1551 for instance in instances:
1552 bep = self.cfg.GetClusterInfo().FillBE(instance_cfg[instance])
1553 if bep[constants.BE_AUTO_BALANCE]:
1554 needed_mem += bep[constants.BE_MEMORY]
1555 test = n_img.mfree < needed_mem
1556 self._ErrorIf(test, self.ENODEN1, node,
1557 "not enough memory on to accommodate"
1558 " failovers should peer node %s fail", prinode)
1560 def _VerifyNodeFiles(self, ninfo, nresult, file_list, local_cksum,
1562 """Verifies and computes the node required file checksums.
1564 @type ninfo: L{objects.Node}
1565 @param ninfo: the node to check
1566 @param nresult: the remote results for the node
1567 @param file_list: required list of files
1568 @param local_cksum: dictionary of local files and their checksums
1569 @param master_files: list of files that only masters should have
1573 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1575 remote_cksum = nresult.get(constants.NV_FILELIST, None)
1576 test = not isinstance(remote_cksum, dict)
1577 _ErrorIf(test, self.ENODEFILECHECK, node,
1578 "node hasn't returned file checksum data")
1582 for file_name in file_list:
1583 node_is_mc = ninfo.master_candidate
1584 must_have = (file_name not in master_files) or node_is_mc
1586 test1 = file_name not in remote_cksum
1588 test2 = not test1 and remote_cksum[file_name] != local_cksum[file_name]
1590 test3 = not test1 and remote_cksum[file_name] == local_cksum[file_name]
1591 _ErrorIf(test1 and must_have, self.ENODEFILECHECK, node,
1592 "file '%s' missing", file_name)
1593 _ErrorIf(test2 and must_have, self.ENODEFILECHECK, node,
1594 "file '%s' has wrong checksum", file_name)
1595 # not candidate and this is not a must-have file
1596 _ErrorIf(test2 and not must_have, self.ENODEFILECHECK, node,
1597 "file '%s' should not exist on non master"
1598 " candidates (and the file is outdated)", file_name)
1599 # all good, except non-master/non-must have combination
1600 _ErrorIf(test3 and not must_have, self.ENODEFILECHECK, node,
1601 "file '%s' should not exist"
1602 " on non master candidates", file_name)
1604 def _VerifyNodeDrbd(self, ninfo, nresult, instanceinfo, drbd_helper,
1606 """Verifies and the node DRBD status.
1608 @type ninfo: L{objects.Node}
1609 @param ninfo: the node to check
1610 @param nresult: the remote results for the node
1611 @param instanceinfo: the dict of instances
1612 @param drbd_helper: the configured DRBD usermode helper
1613 @param drbd_map: the DRBD map as returned by
1614 L{ganeti.config.ConfigWriter.ComputeDRBDMap}
1618 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1621 helper_result = nresult.get(constants.NV_DRBDHELPER, None)
1622 test = (helper_result == None)
1623 _ErrorIf(test, self.ENODEDRBDHELPER, node,
1624 "no drbd usermode helper returned")
1626 status, payload = helper_result
1628 _ErrorIf(test, self.ENODEDRBDHELPER, node,
1629 "drbd usermode helper check unsuccessful: %s", payload)
1630 test = status and (payload != drbd_helper)
1631 _ErrorIf(test, self.ENODEDRBDHELPER, node,
1632 "wrong drbd usermode helper: %s", payload)
1634 # compute the DRBD minors
1636 for minor, instance in drbd_map[node].items():
1637 test = instance not in instanceinfo
1638 _ErrorIf(test, self.ECLUSTERCFG, None,
1639 "ghost instance '%s' in temporary DRBD map", instance)
1640 # ghost instance should not be running, but otherwise we
1641 # don't give double warnings (both ghost instance and
1642 # unallocated minor in use)
1644 node_drbd[minor] = (instance, False)
1646 instance = instanceinfo[instance]
1647 node_drbd[minor] = (instance.name, instance.admin_up)
1649 # and now check them
1650 used_minors = nresult.get(constants.NV_DRBDLIST, [])
1651 test = not isinstance(used_minors, (tuple, list))
1652 _ErrorIf(test, self.ENODEDRBD, node,
1653 "cannot parse drbd status file: %s", str(used_minors))
1655 # we cannot check drbd status
1658 for minor, (iname, must_exist) in node_drbd.items():
1659 test = minor not in used_minors and must_exist
1660 _ErrorIf(test, self.ENODEDRBD, node,
1661 "drbd minor %d of instance %s is not active", minor, iname)
1662 for minor in used_minors:
1663 test = minor not in node_drbd
1664 _ErrorIf(test, self.ENODEDRBD, node,
1665 "unallocated drbd minor %d is in use", minor)
1667 def _UpdateNodeOS(self, ninfo, nresult, nimg):
1668 """Builds the node OS structures.
1670 @type ninfo: L{objects.Node}
1671 @param ninfo: the node to check
1672 @param nresult: the remote results for the node
1673 @param nimg: the node image object
1677 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1679 remote_os = nresult.get(constants.NV_OSLIST, None)
1680 test = (not isinstance(remote_os, list) or
1681 not compat.all(isinstance(v, list) and len(v) == 7
1682 for v in remote_os))
1684 _ErrorIf(test, self.ENODEOS, node,
1685 "node hasn't returned valid OS data")
1694 for (name, os_path, status, diagnose,
1695 variants, parameters, api_ver) in nresult[constants.NV_OSLIST]:
1697 if name not in os_dict:
1700 # parameters is a list of lists instead of list of tuples due to
1701 # JSON lacking a real tuple type, fix it:
1702 parameters = [tuple(v) for v in parameters]
1703 os_dict[name].append((os_path, status, diagnose,
1704 set(variants), set(parameters), set(api_ver)))
1706 nimg.oslist = os_dict
1708 def _VerifyNodeOS(self, ninfo, nimg, base):
1709 """Verifies the node OS list.
1711 @type ninfo: L{objects.Node}
1712 @param ninfo: the node to check
1713 @param nimg: the node image object
1714 @param base: the 'template' node we match against (e.g. from the master)
1718 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1720 assert not nimg.os_fail, "Entered _VerifyNodeOS with failed OS rpc?"
1722 for os_name, os_data in nimg.oslist.items():
1723 assert os_data, "Empty OS status for OS %s?!" % os_name
1724 f_path, f_status, f_diag, f_var, f_param, f_api = os_data[0]
1725 _ErrorIf(not f_status, self.ENODEOS, node,
1726 "Invalid OS %s (located at %s): %s", os_name, f_path, f_diag)
1727 _ErrorIf(len(os_data) > 1, self.ENODEOS, node,
1728 "OS '%s' has multiple entries (first one shadows the rest): %s",
1729 os_name, utils.CommaJoin([v[0] for v in os_data]))
1730 # this will catched in backend too
1731 _ErrorIf(compat.any(v >= constants.OS_API_V15 for v in f_api)
1732 and not f_var, self.ENODEOS, node,
1733 "OS %s with API at least %d does not declare any variant",
1734 os_name, constants.OS_API_V15)
1735 # comparisons with the 'base' image
1736 test = os_name not in base.oslist
1737 _ErrorIf(test, self.ENODEOS, node,
1738 "Extra OS %s not present on reference node (%s)",
1742 assert base.oslist[os_name], "Base node has empty OS status?"
1743 _, b_status, _, b_var, b_param, b_api = base.oslist[os_name][0]
1745 # base OS is invalid, skipping
1747 for kind, a, b in [("API version", f_api, b_api),
1748 ("variants list", f_var, b_var),
1749 ("parameters", f_param, b_param)]:
1750 _ErrorIf(a != b, self.ENODEOS, node,
1751 "OS %s %s differs from reference node %s: %s vs. %s",
1752 kind, os_name, base.name,
1753 utils.CommaJoin(a), utils.CommaJoin(b))
1755 # check any missing OSes
1756 missing = set(base.oslist.keys()).difference(nimg.oslist.keys())
1757 _ErrorIf(missing, self.ENODEOS, node,
1758 "OSes present on reference node %s but missing on this node: %s",
1759 base.name, utils.CommaJoin(missing))
1761 def _UpdateNodeVolumes(self, ninfo, nresult, nimg, vg_name):
1762 """Verifies and updates the node volume data.
1764 This function will update a L{NodeImage}'s internal structures
1765 with data from the remote call.
1767 @type ninfo: L{objects.Node}
1768 @param ninfo: the node to check
1769 @param nresult: the remote results for the node
1770 @param nimg: the node image object
1771 @param vg_name: the configured VG name
1775 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1777 nimg.lvm_fail = True
1778 lvdata = nresult.get(constants.NV_LVLIST, "Missing LV data")
1781 elif isinstance(lvdata, basestring):
1782 _ErrorIf(True, self.ENODELVM, node, "LVM problem on node: %s",
1783 utils.SafeEncode(lvdata))
1784 elif not isinstance(lvdata, dict):
1785 _ErrorIf(True, self.ENODELVM, node, "rpc call to node failed (lvlist)")
1787 nimg.volumes = lvdata
1788 nimg.lvm_fail = False
1790 def _UpdateNodeInstances(self, ninfo, nresult, nimg):
1791 """Verifies and updates the node instance list.
1793 If the listing was successful, then updates this node's instance
1794 list. Otherwise, it marks the RPC call as failed for the instance
1797 @type ninfo: L{objects.Node}
1798 @param ninfo: the node to check
1799 @param nresult: the remote results for the node
1800 @param nimg: the node image object
1803 idata = nresult.get(constants.NV_INSTANCELIST, None)
1804 test = not isinstance(idata, list)
1805 self._ErrorIf(test, self.ENODEHV, ninfo.name, "rpc call to node failed"
1806 " (instancelist): %s", utils.SafeEncode(str(idata)))
1808 nimg.hyp_fail = True
1810 nimg.instances = idata
1812 def _UpdateNodeInfo(self, ninfo, nresult, nimg, vg_name):
1813 """Verifies and computes a node information map
1815 @type ninfo: L{objects.Node}
1816 @param ninfo: the node to check
1817 @param nresult: the remote results for the node
1818 @param nimg: the node image object
1819 @param vg_name: the configured VG name
1823 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1825 # try to read free memory (from the hypervisor)
1826 hv_info = nresult.get(constants.NV_HVINFO, None)
1827 test = not isinstance(hv_info, dict) or "memory_free" not in hv_info
1828 _ErrorIf(test, self.ENODEHV, node, "rpc call to node failed (hvinfo)")
1831 nimg.mfree = int(hv_info["memory_free"])
1832 except (ValueError, TypeError):
1833 _ErrorIf(True, self.ENODERPC, node,
1834 "node returned invalid nodeinfo, check hypervisor")
1836 # FIXME: devise a free space model for file based instances as well
1837 if vg_name is not None:
1838 test = (constants.NV_VGLIST not in nresult or
1839 vg_name not in nresult[constants.NV_VGLIST])
1840 _ErrorIf(test, self.ENODELVM, node,
1841 "node didn't return data for the volume group '%s'"
1842 " - it is either missing or broken", vg_name)
1845 nimg.dfree = int(nresult[constants.NV_VGLIST][vg_name])
1846 except (ValueError, TypeError):
1847 _ErrorIf(True, self.ENODERPC, node,
1848 "node returned invalid LVM info, check LVM status")
1850 def BuildHooksEnv(self):
1853 Cluster-Verify hooks just ran in the post phase and their failure makes
1854 the output be logged in the verify output and the verification to fail.
1857 all_nodes = self.cfg.GetNodeList()
1859 "CLUSTER_TAGS": " ".join(self.cfg.GetClusterInfo().GetTags())
1861 for node in self.cfg.GetAllNodesInfo().values():
1862 env["NODE_TAGS_%s" % node.name] = " ".join(node.GetTags())
1864 return env, [], all_nodes
1866 def Exec(self, feedback_fn):
1867 """Verify integrity of cluster, performing various test on nodes.
1871 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1872 verbose = self.op.verbose
1873 self._feedback_fn = feedback_fn
1874 feedback_fn("* Verifying global settings")
1875 for msg in self.cfg.VerifyConfig():
1876 _ErrorIf(True, self.ECLUSTERCFG, None, msg)
1878 # Check the cluster certificates
1879 for cert_filename in constants.ALL_CERT_FILES:
1880 (errcode, msg) = _VerifyCertificate(cert_filename)
1881 _ErrorIf(errcode, self.ECLUSTERCERT, None, msg, code=errcode)
1883 vg_name = self.cfg.GetVGName()
1884 drbd_helper = self.cfg.GetDRBDHelper()
1885 hypervisors = self.cfg.GetClusterInfo().enabled_hypervisors
1886 cluster = self.cfg.GetClusterInfo()
1887 nodelist = utils.NiceSort(self.cfg.GetNodeList())
1888 nodeinfo = [self.cfg.GetNodeInfo(nname) for nname in nodelist]
1889 instancelist = utils.NiceSort(self.cfg.GetInstanceList())
1890 instanceinfo = dict((iname, self.cfg.GetInstanceInfo(iname))
1891 for iname in instancelist)
1892 i_non_redundant = [] # Non redundant instances
1893 i_non_a_balanced = [] # Non auto-balanced instances
1894 n_offline = 0 # Count of offline nodes
1895 n_drained = 0 # Count of nodes being drained
1896 node_vol_should = {}
1898 # FIXME: verify OS list
1899 # do local checksums
1900 master_files = [constants.CLUSTER_CONF_FILE]
1901 master_node = self.master_node = self.cfg.GetMasterNode()
1902 master_ip = self.cfg.GetMasterIP()
1904 file_names = ssconf.SimpleStore().GetFileList()
1905 file_names.extend(constants.ALL_CERT_FILES)
1906 file_names.extend(master_files)
1907 if cluster.modify_etc_hosts:
1908 file_names.append(constants.ETC_HOSTS)
1910 local_checksums = utils.FingerprintFiles(file_names)
1912 feedback_fn("* Gathering data (%d nodes)" % len(nodelist))
1913 node_verify_param = {
1914 constants.NV_FILELIST: file_names,
1915 constants.NV_NODELIST: [node.name for node in nodeinfo
1916 if not node.offline],
1917 constants.NV_HYPERVISOR: hypervisors,
1918 constants.NV_NODENETTEST: [(node.name, node.primary_ip,
1919 node.secondary_ip) for node in nodeinfo
1920 if not node.offline],
1921 constants.NV_INSTANCELIST: hypervisors,
1922 constants.NV_VERSION: None,
1923 constants.NV_HVINFO: self.cfg.GetHypervisorType(),
1924 constants.NV_NODESETUP: None,
1925 constants.NV_TIME: None,
1926 constants.NV_MASTERIP: (master_node, master_ip),
1927 constants.NV_OSLIST: None,
1930 if vg_name is not None:
1931 node_verify_param[constants.NV_VGLIST] = None
1932 node_verify_param[constants.NV_LVLIST] = vg_name
1933 node_verify_param[constants.NV_PVLIST] = [vg_name]
1934 node_verify_param[constants.NV_DRBDLIST] = None
1937 node_verify_param[constants.NV_DRBDHELPER] = drbd_helper
1939 # Build our expected cluster state
1940 node_image = dict((node.name, self.NodeImage(offline=node.offline,
1942 for node in nodeinfo)
1944 for instance in instancelist:
1945 inst_config = instanceinfo[instance]
1947 for nname in inst_config.all_nodes:
1948 if nname not in node_image:
1950 gnode = self.NodeImage(name=nname)
1952 node_image[nname] = gnode
1954 inst_config.MapLVsByNode(node_vol_should)
1956 pnode = inst_config.primary_node
1957 node_image[pnode].pinst.append(instance)
1959 for snode in inst_config.secondary_nodes:
1960 nimg = node_image[snode]
1961 nimg.sinst.append(instance)
1962 if pnode not in nimg.sbp:
1963 nimg.sbp[pnode] = []
1964 nimg.sbp[pnode].append(instance)
1966 # At this point, we have the in-memory data structures complete,
1967 # except for the runtime information, which we'll gather next
1969 # Due to the way our RPC system works, exact response times cannot be
1970 # guaranteed (e.g. a broken node could run into a timeout). By keeping the
1971 # time before and after executing the request, we can at least have a time
1973 nvinfo_starttime = time.time()
1974 all_nvinfo = self.rpc.call_node_verify(nodelist, node_verify_param,
1975 self.cfg.GetClusterName())
1976 nvinfo_endtime = time.time()
1978 all_drbd_map = self.cfg.ComputeDRBDMap()
1980 feedback_fn("* Verifying node status")
1984 for node_i in nodeinfo:
1986 nimg = node_image[node]
1990 feedback_fn("* Skipping offline node %s" % (node,))
1994 if node == master_node:
1996 elif node_i.master_candidate:
1997 ntype = "master candidate"
1998 elif node_i.drained:
2004 feedback_fn("* Verifying node %s (%s)" % (node, ntype))
2006 msg = all_nvinfo[node].fail_msg
2007 _ErrorIf(msg, self.ENODERPC, node, "while contacting node: %s", msg)
2009 nimg.rpc_fail = True
2012 nresult = all_nvinfo[node].payload
2014 nimg.call_ok = self._VerifyNode(node_i, nresult)
2015 self._VerifyNodeNetwork(node_i, nresult)
2016 self._VerifyNodeLVM(node_i, nresult, vg_name)
2017 self._VerifyNodeFiles(node_i, nresult, file_names, local_checksums,
2019 self._VerifyNodeDrbd(node_i, nresult, instanceinfo, drbd_helper,
2021 self._VerifyNodeTime(node_i, nresult, nvinfo_starttime, nvinfo_endtime)
2023 self._UpdateNodeVolumes(node_i, nresult, nimg, vg_name)
2024 self._UpdateNodeInstances(node_i, nresult, nimg)
2025 self._UpdateNodeInfo(node_i, nresult, nimg, vg_name)
2026 self._UpdateNodeOS(node_i, nresult, nimg)
2027 if not nimg.os_fail:
2028 if refos_img is None:
2030 self._VerifyNodeOS(node_i, nimg, refos_img)
2032 feedback_fn("* Verifying instance status")
2033 for instance in instancelist:
2035 feedback_fn("* Verifying instance %s" % instance)
2036 inst_config = instanceinfo[instance]
2037 self._VerifyInstance(instance, inst_config, node_image)
2038 inst_nodes_offline = []
2040 pnode = inst_config.primary_node
2041 pnode_img = node_image[pnode]
2042 _ErrorIf(pnode_img.rpc_fail and not pnode_img.offline,
2043 self.ENODERPC, pnode, "instance %s, connection to"
2044 " primary node failed", instance)
2046 if pnode_img.offline:
2047 inst_nodes_offline.append(pnode)
2049 # If the instance is non-redundant we cannot survive losing its primary
2050 # node, so we are not N+1 compliant. On the other hand we have no disk
2051 # templates with more than one secondary so that situation is not well
2053 # FIXME: does not support file-backed instances
2054 if not inst_config.secondary_nodes:
2055 i_non_redundant.append(instance)
2056 _ErrorIf(len(inst_config.secondary_nodes) > 1, self.EINSTANCELAYOUT,
2057 instance, "instance has multiple secondary nodes: %s",
2058 utils.CommaJoin(inst_config.secondary_nodes),
2059 code=self.ETYPE_WARNING)
2061 if not cluster.FillBE(inst_config)[constants.BE_AUTO_BALANCE]:
2062 i_non_a_balanced.append(instance)
2064 for snode in inst_config.secondary_nodes:
2065 s_img = node_image[snode]
2066 _ErrorIf(s_img.rpc_fail and not s_img.offline, self.ENODERPC, snode,
2067 "instance %s, connection to secondary node failed", instance)
2070 inst_nodes_offline.append(snode)
2072 # warn that the instance lives on offline nodes
2073 _ErrorIf(inst_nodes_offline, self.EINSTANCEBADNODE, instance,
2074 "instance lives on offline node(s) %s",
2075 utils.CommaJoin(inst_nodes_offline))
2076 # ... or ghost nodes
2077 for node in inst_config.all_nodes:
2078 _ErrorIf(node_image[node].ghost, self.EINSTANCEBADNODE, instance,
2079 "instance lives on ghost node %s", node)
2081 feedback_fn("* Verifying orphan volumes")
2082 reserved = utils.FieldSet(*cluster.reserved_lvs)
2083 self._VerifyOrphanVolumes(node_vol_should, node_image, reserved)
2085 feedback_fn("* Verifying orphan instances")
2086 self._VerifyOrphanInstances(instancelist, node_image)
2088 if constants.VERIFY_NPLUSONE_MEM not in self.op.skip_checks:
2089 feedback_fn("* Verifying N+1 Memory redundancy")
2090 self._VerifyNPlusOneMemory(node_image, instanceinfo)
2092 feedback_fn("* Other Notes")
2094 feedback_fn(" - NOTICE: %d non-redundant instance(s) found."
2095 % len(i_non_redundant))
2097 if i_non_a_balanced:
2098 feedback_fn(" - NOTICE: %d non-auto-balanced instance(s) found."
2099 % len(i_non_a_balanced))
2102 feedback_fn(" - NOTICE: %d offline node(s) found." % n_offline)
2105 feedback_fn(" - NOTICE: %d drained node(s) found." % n_drained)
2109 def HooksCallBack(self, phase, hooks_results, feedback_fn, lu_result):
2110 """Analyze the post-hooks' result
2112 This method analyses the hook result, handles it, and sends some
2113 nicely-formatted feedback back to the user.
2115 @param phase: one of L{constants.HOOKS_PHASE_POST} or
2116 L{constants.HOOKS_PHASE_PRE}; it denotes the hooks phase
2117 @param hooks_results: the results of the multi-node hooks rpc call
2118 @param feedback_fn: function used send feedback back to the caller
2119 @param lu_result: previous Exec result
2120 @return: the new Exec result, based on the previous result
2124 # We only really run POST phase hooks, and are only interested in
2126 if phase == constants.HOOKS_PHASE_POST:
2127 # Used to change hooks' output to proper indentation
2128 indent_re = re.compile('^', re.M)
2129 feedback_fn("* Hooks Results")
2130 assert hooks_results, "invalid result from hooks"
2132 for node_name in hooks_results:
2133 res = hooks_results[node_name]
2135 test = msg and not res.offline
2136 self._ErrorIf(test, self.ENODEHOOKS, node_name,
2137 "Communication failure in hooks execution: %s", msg)
2138 if res.offline or msg:
2139 # No need to investigate payload if node is offline or gave an error.
2140 # override manually lu_result here as _ErrorIf only
2141 # overrides self.bad
2144 for script, hkr, output in res.payload:
2145 test = hkr == constants.HKR_FAIL
2146 self._ErrorIf(test, self.ENODEHOOKS, node_name,
2147 "Script %s failed, output:", script)
2149 output = indent_re.sub(' ', output)
2150 feedback_fn("%s" % output)
2156 class LUVerifyDisks(NoHooksLU):
2157 """Verifies the cluster disks status.
2162 def ExpandNames(self):
2163 self.needed_locks = {
2164 locking.LEVEL_NODE: locking.ALL_SET,
2165 locking.LEVEL_INSTANCE: locking.ALL_SET,
2167 self.share_locks = dict.fromkeys(locking.LEVELS, 1)
2169 def Exec(self, feedback_fn):
2170 """Verify integrity of cluster disks.
2172 @rtype: tuple of three items
2173 @return: a tuple of (dict of node-to-node_error, list of instances
2174 which need activate-disks, dict of instance: (node, volume) for
2178 result = res_nodes, res_instances, res_missing = {}, [], {}
2180 vg_name = self.cfg.GetVGName()
2181 nodes = utils.NiceSort(self.cfg.GetNodeList())
2182 instances = [self.cfg.GetInstanceInfo(name)
2183 for name in self.cfg.GetInstanceList()]
2186 for inst in instances:
2188 if (not inst.admin_up or
2189 inst.disk_template not in constants.DTS_NET_MIRROR):
2191 inst.MapLVsByNode(inst_lvs)
2192 # transform { iname: {node: [vol,],},} to {(node, vol): iname}
2193 for node, vol_list in inst_lvs.iteritems():
2194 for vol in vol_list:
2195 nv_dict[(node, vol)] = inst
2200 node_lvs = self.rpc.call_lv_list(nodes, vg_name)
2204 node_res = node_lvs[node]
2205 if node_res.offline:
2207 msg = node_res.fail_msg
2209 logging.warning("Error enumerating LVs on node %s: %s", node, msg)
2210 res_nodes[node] = msg
2213 lvs = node_res.payload
2214 for lv_name, (_, _, lv_online) in lvs.items():
2215 inst = nv_dict.pop((node, lv_name), None)
2216 if (not lv_online and inst is not None
2217 and inst.name not in res_instances):
2218 res_instances.append(inst.name)
2220 # any leftover items in nv_dict are missing LVs, let's arrange the
2222 for key, inst in nv_dict.iteritems():
2223 if inst.name not in res_missing:
2224 res_missing[inst.name] = []
2225 res_missing[inst.name].append(key)
2230 class LURepairDiskSizes(NoHooksLU):
2231 """Verifies the cluster disks sizes.
2234 _OP_PARAMS = [("instances", ht.EmptyList, ht.TListOf(ht.TNonEmptyString))]
2237 def ExpandNames(self):
2238 if self.op.instances:
2239 self.wanted_names = []
2240 for name in self.op.instances:
2241 full_name = _ExpandInstanceName(self.cfg, name)
2242 self.wanted_names.append(full_name)
2243 self.needed_locks = {
2244 locking.LEVEL_NODE: [],
2245 locking.LEVEL_INSTANCE: self.wanted_names,
2247 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
2249 self.wanted_names = None
2250 self.needed_locks = {
2251 locking.LEVEL_NODE: locking.ALL_SET,
2252 locking.LEVEL_INSTANCE: locking.ALL_SET,
2254 self.share_locks = dict(((i, 1) for i in locking.LEVELS))
2256 def DeclareLocks(self, level):
2257 if level == locking.LEVEL_NODE and self.wanted_names is not None:
2258 self._LockInstancesNodes(primary_only=True)
2260 def CheckPrereq(self):
2261 """Check prerequisites.
2263 This only checks the optional instance list against the existing names.
2266 if self.wanted_names is None:
2267 self.wanted_names = self.acquired_locks[locking.LEVEL_INSTANCE]
2269 self.wanted_instances = [self.cfg.GetInstanceInfo(name) for name
2270 in self.wanted_names]
2272 def _EnsureChildSizes(self, disk):
2273 """Ensure children of the disk have the needed disk size.
2275 This is valid mainly for DRBD8 and fixes an issue where the
2276 children have smaller disk size.
2278 @param disk: an L{ganeti.objects.Disk} object
2281 if disk.dev_type == constants.LD_DRBD8:
2282 assert disk.children, "Empty children for DRBD8?"
2283 fchild = disk.children[0]
2284 mismatch = fchild.size < disk.size
2286 self.LogInfo("Child disk has size %d, parent %d, fixing",
2287 fchild.size, disk.size)
2288 fchild.size = disk.size
2290 # and we recurse on this child only, not on the metadev
2291 return self._EnsureChildSizes(fchild) or mismatch
2295 def Exec(self, feedback_fn):
2296 """Verify the size of cluster disks.
2299 # TODO: check child disks too
2300 # TODO: check differences in size between primary/secondary nodes
2302 for instance in self.wanted_instances:
2303 pnode = instance.primary_node
2304 if pnode not in per_node_disks:
2305 per_node_disks[pnode] = []
2306 for idx, disk in enumerate(instance.disks):
2307 per_node_disks[pnode].append((instance, idx, disk))
2310 for node, dskl in per_node_disks.items():
2311 newl = [v[2].Copy() for v in dskl]
2313 self.cfg.SetDiskID(dsk, node)
2314 result = self.rpc.call_blockdev_getsizes(node, newl)
2316 self.LogWarning("Failure in blockdev_getsizes call to node"
2317 " %s, ignoring", node)
2319 if len(result.data) != len(dskl):
2320 self.LogWarning("Invalid result from node %s, ignoring node results",
2323 for ((instance, idx, disk), size) in zip(dskl, result.data):
2325 self.LogWarning("Disk %d of instance %s did not return size"
2326 " information, ignoring", idx, instance.name)
2328 if not isinstance(size, (int, long)):
2329 self.LogWarning("Disk %d of instance %s did not return valid"
2330 " size information, ignoring", idx, instance.name)
2333 if size != disk.size:
2334 self.LogInfo("Disk %d of instance %s has mismatched size,"
2335 " correcting: recorded %d, actual %d", idx,
2336 instance.name, disk.size, size)
2338 self.cfg.Update(instance, feedback_fn)
2339 changed.append((instance.name, idx, size))
2340 if self._EnsureChildSizes(disk):
2341 self.cfg.Update(instance, feedback_fn)
2342 changed.append((instance.name, idx, disk.size))
2346 class LURenameCluster(LogicalUnit):
2347 """Rename the cluster.
2350 HPATH = "cluster-rename"
2351 HTYPE = constants.HTYPE_CLUSTER
2352 _OP_PARAMS = [("name", ht.NoDefault, ht.TNonEmptyString)]
2354 def BuildHooksEnv(self):
2359 "OP_TARGET": self.cfg.GetClusterName(),
2360 "NEW_NAME": self.op.name,
2362 mn = self.cfg.GetMasterNode()
2363 all_nodes = self.cfg.GetNodeList()
2364 return env, [mn], all_nodes
2366 def CheckPrereq(self):
2367 """Verify that the passed name is a valid one.
2370 hostname = netutils.GetHostname(name=self.op.name,
2371 family=self.cfg.GetPrimaryIPFamily())
2373 new_name = hostname.name
2374 self.ip = new_ip = hostname.ip
2375 old_name = self.cfg.GetClusterName()
2376 old_ip = self.cfg.GetMasterIP()
2377 if new_name == old_name and new_ip == old_ip:
2378 raise errors.OpPrereqError("Neither the name nor the IP address of the"
2379 " cluster has changed",
2381 if new_ip != old_ip:
2382 if netutils.TcpPing(new_ip, constants.DEFAULT_NODED_PORT):
2383 raise errors.OpPrereqError("The given cluster IP address (%s) is"
2384 " reachable on the network" %
2385 new_ip, errors.ECODE_NOTUNIQUE)
2387 self.op.name = new_name
2389 def Exec(self, feedback_fn):
2390 """Rename the cluster.
2393 clustername = self.op.name
2396 # shutdown the master IP
2397 master = self.cfg.GetMasterNode()
2398 result = self.rpc.call_node_stop_master(master, False)
2399 result.Raise("Could not disable the master role")
2402 cluster = self.cfg.GetClusterInfo()
2403 cluster.cluster_name = clustername
2404 cluster.master_ip = ip
2405 self.cfg.Update(cluster, feedback_fn)
2407 # update the known hosts file
2408 ssh.WriteKnownHostsFile(self.cfg, constants.SSH_KNOWN_HOSTS_FILE)
2409 node_list = self.cfg.GetNodeList()
2411 node_list.remove(master)
2414 result = self.rpc.call_upload_file(node_list,
2415 constants.SSH_KNOWN_HOSTS_FILE)
2416 for to_node, to_result in result.iteritems():
2417 msg = to_result.fail_msg
2419 msg = ("Copy of file %s to node %s failed: %s" %
2420 (constants.SSH_KNOWN_HOSTS_FILE, to_node, msg))
2421 self.proc.LogWarning(msg)
2424 result = self.rpc.call_node_start_master(master, False, False)
2425 msg = result.fail_msg
2427 self.LogWarning("Could not re-enable the master role on"
2428 " the master, please restart manually: %s", msg)
2433 class LUSetClusterParams(LogicalUnit):
2434 """Change the parameters of the cluster.
2437 HPATH = "cluster-modify"
2438 HTYPE = constants.HTYPE_CLUSTER
2440 ("vg_name", None, ht.TMaybeString),
2441 ("enabled_hypervisors", None,
2442 ht.TOr(ht.TAnd(ht.TListOf(ht.TElemOf(constants.HYPER_TYPES)), ht.TTrue),
2444 ("hvparams", None, ht.TOr(ht.TDictOf(ht.TNonEmptyString, ht.TDict),
2446 ("beparams", None, ht.TOr(ht.TDictOf(ht.TNonEmptyString, ht.TDict),
2448 ("os_hvp", None, ht.TOr(ht.TDictOf(ht.TNonEmptyString, ht.TDict),
2450 ("osparams", None, ht.TOr(ht.TDictOf(ht.TNonEmptyString, ht.TDict),
2452 ("candidate_pool_size", None, ht.TOr(ht.TStrictPositiveInt, ht.TNone)),
2453 ("uid_pool", None, ht.NoType),
2454 ("add_uids", None, ht.NoType),
2455 ("remove_uids", None, ht.NoType),
2456 ("maintain_node_health", None, ht.TMaybeBool),
2457 ("nicparams", None, ht.TOr(ht.TDict, ht.TNone)),
2458 ("drbd_helper", None, ht.TOr(ht.TString, ht.TNone)),
2459 ("default_iallocator", None, ht.TOr(ht.TString, ht.TNone)),
2460 ("reserved_lvs", None, ht.TOr(ht.TListOf(ht.TNonEmptyString), ht.TNone)),
2461 ("hidden_os", None, ht.TOr(ht.TListOf(\
2464 ht.TMap(lambda v: v[0], ht.TElemOf(constants.DDMS_VALUES)))),
2466 ("blacklisted_os", None, ht.TOr(ht.TListOf(\
2469 ht.TMap(lambda v: v[0], ht.TElemOf(constants.DDMS_VALUES)))),
2474 def CheckArguments(self):
2478 if self.op.uid_pool:
2479 uidpool.CheckUidPool(self.op.uid_pool)
2481 if self.op.add_uids:
2482 uidpool.CheckUidPool(self.op.add_uids)
2484 if self.op.remove_uids:
2485 uidpool.CheckUidPool(self.op.remove_uids)
2487 def ExpandNames(self):
2488 # FIXME: in the future maybe other cluster params won't require checking on
2489 # all nodes to be modified.
2490 self.needed_locks = {
2491 locking.LEVEL_NODE: locking.ALL_SET,
2493 self.share_locks[locking.LEVEL_NODE] = 1
2495 def BuildHooksEnv(self):
2500 "OP_TARGET": self.cfg.GetClusterName(),
2501 "NEW_VG_NAME": self.op.vg_name,
2503 mn = self.cfg.GetMasterNode()
2504 return env, [mn], [mn]
2506 def CheckPrereq(self):
2507 """Check prerequisites.
2509 This checks whether the given params don't conflict and
2510 if the given volume group is valid.
2513 if self.op.vg_name is not None and not self.op.vg_name:
2514 if self.cfg.HasAnyDiskOfType(constants.LD_LV):
2515 raise errors.OpPrereqError("Cannot disable lvm storage while lvm-based"
2516 " instances exist", errors.ECODE_INVAL)
2518 if self.op.drbd_helper is not None and not self.op.drbd_helper:
2519 if self.cfg.HasAnyDiskOfType(constants.LD_DRBD8):
2520 raise errors.OpPrereqError("Cannot disable drbd helper while"
2521 " drbd-based instances exist",
2524 node_list = self.acquired_locks[locking.LEVEL_NODE]
2526 # if vg_name not None, checks given volume group on all nodes
2528 vglist = self.rpc.call_vg_list(node_list)
2529 for node in node_list:
2530 msg = vglist[node].fail_msg
2532 # ignoring down node
2533 self.LogWarning("Error while gathering data on node %s"
2534 " (ignoring node): %s", node, msg)
2536 vgstatus = utils.CheckVolumeGroupSize(vglist[node].payload,
2538 constants.MIN_VG_SIZE)
2540 raise errors.OpPrereqError("Error on node '%s': %s" %
2541 (node, vgstatus), errors.ECODE_ENVIRON)
2543 if self.op.drbd_helper:
2544 # checks given drbd helper on all nodes
2545 helpers = self.rpc.call_drbd_helper(node_list)
2546 for node in node_list:
2547 ninfo = self.cfg.GetNodeInfo(node)
2549 self.LogInfo("Not checking drbd helper on offline node %s", node)
2551 msg = helpers[node].fail_msg
2553 raise errors.OpPrereqError("Error checking drbd helper on node"
2554 " '%s': %s" % (node, msg),
2555 errors.ECODE_ENVIRON)
2556 node_helper = helpers[node].payload
2557 if node_helper != self.op.drbd_helper:
2558 raise errors.OpPrereqError("Error on node '%s': drbd helper is %s" %
2559 (node, node_helper), errors.ECODE_ENVIRON)
2561 self.cluster = cluster = self.cfg.GetClusterInfo()
2562 # validate params changes
2563 if self.op.beparams:
2564 utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
2565 self.new_beparams = cluster.SimpleFillBE(self.op.beparams)
2567 if self.op.nicparams:
2568 utils.ForceDictType(self.op.nicparams, constants.NICS_PARAMETER_TYPES)
2569 self.new_nicparams = cluster.SimpleFillNIC(self.op.nicparams)
2570 objects.NIC.CheckParameterSyntax(self.new_nicparams)
2573 # check all instances for consistency
2574 for instance in self.cfg.GetAllInstancesInfo().values():
2575 for nic_idx, nic in enumerate(instance.nics):
2576 params_copy = copy.deepcopy(nic.nicparams)
2577 params_filled = objects.FillDict(self.new_nicparams, params_copy)
2579 # check parameter syntax
2581 objects.NIC.CheckParameterSyntax(params_filled)
2582 except errors.ConfigurationError, err:
2583 nic_errors.append("Instance %s, nic/%d: %s" %
2584 (instance.name, nic_idx, err))
2586 # if we're moving instances to routed, check that they have an ip
2587 target_mode = params_filled[constants.NIC_MODE]
2588 if target_mode == constants.NIC_MODE_ROUTED and not nic.ip:
2589 nic_errors.append("Instance %s, nic/%d: routed nick with no ip" %
2590 (instance.name, nic_idx))
2592 raise errors.OpPrereqError("Cannot apply the change, errors:\n%s" %
2593 "\n".join(nic_errors))
2595 # hypervisor list/parameters
2596 self.new_hvparams = new_hvp = objects.FillDict(cluster.hvparams, {})
2597 if self.op.hvparams:
2598 for hv_name, hv_dict in self.op.hvparams.items():
2599 if hv_name not in self.new_hvparams:
2600 self.new_hvparams[hv_name] = hv_dict
2602 self.new_hvparams[hv_name].update(hv_dict)
2604 # os hypervisor parameters
2605 self.new_os_hvp = objects.FillDict(cluster.os_hvp, {})
2607 for os_name, hvs in self.op.os_hvp.items():
2608 if os_name not in self.new_os_hvp:
2609 self.new_os_hvp[os_name] = hvs
2611 for hv_name, hv_dict in hvs.items():
2612 if hv_name not in self.new_os_hvp[os_name]:
2613 self.new_os_hvp[os_name][hv_name] = hv_dict
2615 self.new_os_hvp[os_name][hv_name].update(hv_dict)
2618 self.new_osp = objects.FillDict(cluster.osparams, {})
2619 if self.op.osparams:
2620 for os_name, osp in self.op.osparams.items():
2621 if os_name not in self.new_osp:
2622 self.new_osp[os_name] = {}
2624 self.new_osp[os_name] = _GetUpdatedParams(self.new_osp[os_name], osp,
2627 if not self.new_osp[os_name]:
2628 # we removed all parameters
2629 del self.new_osp[os_name]
2631 # check the parameter validity (remote check)
2632 _CheckOSParams(self, False, [self.cfg.GetMasterNode()],
2633 os_name, self.new_osp[os_name])
2635 # changes to the hypervisor list
2636 if self.op.enabled_hypervisors is not None:
2637 self.hv_list = self.op.enabled_hypervisors
2638 for hv in self.hv_list:
2639 # if the hypervisor doesn't already exist in the cluster
2640 # hvparams, we initialize it to empty, and then (in both
2641 # cases) we make sure to fill the defaults, as we might not
2642 # have a complete defaults list if the hypervisor wasn't
2644 if hv not in new_hvp:
2646 new_hvp[hv] = objects.FillDict(constants.HVC_DEFAULTS[hv], new_hvp[hv])
2647 utils.ForceDictType(new_hvp[hv], constants.HVS_PARAMETER_TYPES)
2649 self.hv_list = cluster.enabled_hypervisors
2651 if self.op.hvparams or self.op.enabled_hypervisors is not None:
2652 # either the enabled list has changed, or the parameters have, validate
2653 for hv_name, hv_params in self.new_hvparams.items():
2654 if ((self.op.hvparams and hv_name in self.op.hvparams) or
2655 (self.op.enabled_hypervisors and
2656 hv_name in self.op.enabled_hypervisors)):
2657 # either this is a new hypervisor, or its parameters have changed
2658 hv_class = hypervisor.GetHypervisor(hv_name)
2659 utils.ForceDictType(hv_params, constants.HVS_PARAMETER_TYPES)
2660 hv_class.CheckParameterSyntax(hv_params)
2661 _CheckHVParams(self, node_list, hv_name, hv_params)
2664 # no need to check any newly-enabled hypervisors, since the
2665 # defaults have already been checked in the above code-block
2666 for os_name, os_hvp in self.new_os_hvp.items():
2667 for hv_name, hv_params in os_hvp.items():
2668 utils.ForceDictType(hv_params, constants.HVS_PARAMETER_TYPES)
2669 # we need to fill in the new os_hvp on top of the actual hv_p
2670 cluster_defaults = self.new_hvparams.get(hv_name, {})
2671 new_osp = objects.FillDict(cluster_defaults, hv_params)
2672 hv_class = hypervisor.GetHypervisor(hv_name)
2673 hv_class.CheckParameterSyntax(new_osp)
2674 _CheckHVParams(self, node_list, hv_name, new_osp)
2676 if self.op.default_iallocator:
2677 alloc_script = utils.FindFile(self.op.default_iallocator,
2678 constants.IALLOCATOR_SEARCH_PATH,
2680 if alloc_script is None:
2681 raise errors.OpPrereqError("Invalid default iallocator script '%s'"
2682 " specified" % self.op.default_iallocator,
2685 def Exec(self, feedback_fn):
2686 """Change the parameters of the cluster.
2689 if self.op.vg_name is not None:
2690 new_volume = self.op.vg_name
2693 if new_volume != self.cfg.GetVGName():
2694 self.cfg.SetVGName(new_volume)
2696 feedback_fn("Cluster LVM configuration already in desired"
2697 " state, not changing")
2698 if self.op.drbd_helper is not None:
2699 new_helper = self.op.drbd_helper
2702 if new_helper != self.cfg.GetDRBDHelper():
2703 self.cfg.SetDRBDHelper(new_helper)
2705 feedback_fn("Cluster DRBD helper already in desired state,"
2707 if self.op.hvparams:
2708 self.cluster.hvparams = self.new_hvparams
2710 self.cluster.os_hvp = self.new_os_hvp
2711 if self.op.enabled_hypervisors is not None:
2712 self.cluster.hvparams = self.new_hvparams
2713 self.cluster.enabled_hypervisors = self.op.enabled_hypervisors
2714 if self.op.beparams:
2715 self.cluster.beparams[constants.PP_DEFAULT] = self.new_beparams
2716 if self.op.nicparams:
2717 self.cluster.nicparams[constants.PP_DEFAULT] = self.new_nicparams
2718 if self.op.osparams:
2719 self.cluster.osparams = self.new_osp
2721 if self.op.candidate_pool_size is not None:
2722 self.cluster.candidate_pool_size = self.op.candidate_pool_size
2723 # we need to update the pool size here, otherwise the save will fail
2724 _AdjustCandidatePool(self, [])
2726 if self.op.maintain_node_health is not None:
2727 self.cluster.maintain_node_health = self.op.maintain_node_health
2729 if self.op.add_uids is not None:
2730 uidpool.AddToUidPool(self.cluster.uid_pool, self.op.add_uids)
2732 if self.op.remove_uids is not None:
2733 uidpool.RemoveFromUidPool(self.cluster.uid_pool, self.op.remove_uids)
2735 if self.op.uid_pool is not None:
2736 self.cluster.uid_pool = self.op.uid_pool
2738 if self.op.default_iallocator is not None:
2739 self.cluster.default_iallocator = self.op.default_iallocator
2741 if self.op.reserved_lvs is not None:
2742 self.cluster.reserved_lvs = self.op.reserved_lvs
2744 def helper_os(aname, mods, desc):
2746 lst = getattr(self.cluster, aname)
2747 for key, val in mods:
2748 if key == constants.DDM_ADD:
2750 feedback_fn("OS %s already in %s, ignoring", val, desc)
2753 elif key == constants.DDM_REMOVE:
2757 feedback_fn("OS %s not found in %s, ignoring", val, desc)
2759 raise errors.ProgrammerError("Invalid modification '%s'" % key)
2761 if self.op.hidden_os:
2762 helper_os("hidden_os", self.op.hidden_os, "hidden")
2764 if self.op.blacklisted_os:
2765 helper_os("blacklisted_os", self.op.blacklisted_os, "blacklisted")
2767 self.cfg.Update(self.cluster, feedback_fn)
2770 def _RedistributeAncillaryFiles(lu, additional_nodes=None):
2771 """Distribute additional files which are part of the cluster configuration.
2773 ConfigWriter takes care of distributing the config and ssconf files, but
2774 there are more files which should be distributed to all nodes. This function
2775 makes sure those are copied.
2777 @param lu: calling logical unit
2778 @param additional_nodes: list of nodes not in the config to distribute to
2781 # 1. Gather target nodes
2782 myself = lu.cfg.GetNodeInfo(lu.cfg.GetMasterNode())
2783 dist_nodes = lu.cfg.GetOnlineNodeList()
2784 if additional_nodes is not None:
2785 dist_nodes.extend(additional_nodes)
2786 if myself.name in dist_nodes:
2787 dist_nodes.remove(myself.name)
2789 # 2. Gather files to distribute
2790 dist_files = set([constants.ETC_HOSTS,
2791 constants.SSH_KNOWN_HOSTS_FILE,
2792 constants.RAPI_CERT_FILE,
2793 constants.RAPI_USERS_FILE,
2794 constants.CONFD_HMAC_KEY,
2795 constants.CLUSTER_DOMAIN_SECRET_FILE,
2798 enabled_hypervisors = lu.cfg.GetClusterInfo().enabled_hypervisors
2799 for hv_name in enabled_hypervisors:
2800 hv_class = hypervisor.GetHypervisor(hv_name)
2801 dist_files.update(hv_class.GetAncillaryFiles())
2803 # 3. Perform the files upload
2804 for fname in dist_files:
2805 if os.path.exists(fname):
2806 result = lu.rpc.call_upload_file(dist_nodes, fname)
2807 for to_node, to_result in result.items():
2808 msg = to_result.fail_msg
2810 msg = ("Copy of file %s to node %s failed: %s" %
2811 (fname, to_node, msg))
2812 lu.proc.LogWarning(msg)
2815 class LURedistributeConfig(NoHooksLU):
2816 """Force the redistribution of cluster configuration.
2818 This is a very simple LU.
2823 def ExpandNames(self):
2824 self.needed_locks = {
2825 locking.LEVEL_NODE: locking.ALL_SET,
2827 self.share_locks[locking.LEVEL_NODE] = 1
2829 def Exec(self, feedback_fn):
2830 """Redistribute the configuration.
2833 self.cfg.Update(self.cfg.GetClusterInfo(), feedback_fn)
2834 _RedistributeAncillaryFiles(self)
2837 def _WaitForSync(lu, instance, disks=None, oneshot=False):
2838 """Sleep and poll for an instance's disk to sync.
2841 if not instance.disks or disks is not None and not disks:
2844 disks = _ExpandCheckDisks(instance, disks)
2847 lu.proc.LogInfo("Waiting for instance %s to sync disks." % instance.name)
2849 node = instance.primary_node
2852 lu.cfg.SetDiskID(dev, node)
2854 # TODO: Convert to utils.Retry
2857 degr_retries = 10 # in seconds, as we sleep 1 second each time
2861 cumul_degraded = False
2862 rstats = lu.rpc.call_blockdev_getmirrorstatus(node, disks)
2863 msg = rstats.fail_msg
2865 lu.LogWarning("Can't get any data from node %s: %s", node, msg)
2868 raise errors.RemoteError("Can't contact node %s for mirror data,"
2869 " aborting." % node)
2872 rstats = rstats.payload
2874 for i, mstat in enumerate(rstats):
2876 lu.LogWarning("Can't compute data for node %s/%s",
2877 node, disks[i].iv_name)
2880 cumul_degraded = (cumul_degraded or
2881 (mstat.is_degraded and mstat.sync_percent is None))
2882 if mstat.sync_percent is not None:
2884 if mstat.estimated_time is not None:
2885 rem_time = ("%s remaining (estimated)" %
2886 utils.FormatSeconds(mstat.estimated_time))
2887 max_time = mstat.estimated_time
2889 rem_time = "no time estimate"
2890 lu.proc.LogInfo("- device %s: %5.2f%% done, %s" %
2891 (disks[i].iv_name, mstat.sync_percent, rem_time))
2893 # if we're done but degraded, let's do a few small retries, to
2894 # make sure we see a stable and not transient situation; therefore
2895 # we force restart of the loop
2896 if (done or oneshot) and cumul_degraded and degr_retries > 0:
2897 logging.info("Degraded disks found, %d retries left", degr_retries)
2905 time.sleep(min(60, max_time))
2908 lu.proc.LogInfo("Instance %s's disks are in sync." % instance.name)
2909 return not cumul_degraded
2912 def _CheckDiskConsistency(lu, dev, node, on_primary, ldisk=False):
2913 """Check that mirrors are not degraded.
2915 The ldisk parameter, if True, will change the test from the
2916 is_degraded attribute (which represents overall non-ok status for
2917 the device(s)) to the ldisk (representing the local storage status).
2920 lu.cfg.SetDiskID(dev, node)
2924 if on_primary or dev.AssembleOnSecondary():
2925 rstats = lu.rpc.call_blockdev_find(node, dev)
2926 msg = rstats.fail_msg
2928 lu.LogWarning("Can't find disk on node %s: %s", node, msg)
2930 elif not rstats.payload:
2931 lu.LogWarning("Can't find disk on node %s", node)
2935 result = result and rstats.payload.ldisk_status == constants.LDS_OKAY
2937 result = result and not rstats.payload.is_degraded
2940 for child in dev.children:
2941 result = result and _CheckDiskConsistency(lu, child, node, on_primary)
2946 class LUDiagnoseOS(NoHooksLU):
2947 """Logical unit for OS diagnose/query.
2952 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
2956 _BLK = "blacklisted"
2958 _FIELDS_STATIC = utils.FieldSet()
2959 _FIELDS_DYNAMIC = utils.FieldSet("name", _VLD, "node_status", "variants",
2960 "parameters", "api_versions", _HID, _BLK)
2962 def CheckArguments(self):
2964 raise errors.OpPrereqError("Selective OS query not supported",
2967 _CheckOutputFields(static=self._FIELDS_STATIC,
2968 dynamic=self._FIELDS_DYNAMIC,
2969 selected=self.op.output_fields)
2971 def ExpandNames(self):
2972 # Lock all nodes, in shared mode
2973 # Temporary removal of locks, should be reverted later
2974 # TODO: reintroduce locks when they are lighter-weight
2975 self.needed_locks = {}
2976 #self.share_locks[locking.LEVEL_NODE] = 1
2977 #self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
2980 def _DiagnoseByOS(rlist):
2981 """Remaps a per-node return list into an a per-os per-node dictionary
2983 @param rlist: a map with node names as keys and OS objects as values
2986 @return: a dictionary with osnames as keys and as value another
2987 map, with nodes as keys and tuples of (path, status, diagnose,
2988 variants, parameters, api_versions) as values, eg::
2990 {"debian-etch": {"node1": [(/usr/lib/..., True, "", [], []),
2991 (/srv/..., False, "invalid api")],
2992 "node2": [(/srv/..., True, "", [], [])]}
2997 # we build here the list of nodes that didn't fail the RPC (at RPC
2998 # level), so that nodes with a non-responding node daemon don't
2999 # make all OSes invalid
3000 good_nodes = [node_name for node_name in rlist
3001 if not rlist[node_name].fail_msg]
3002 for node_name, nr in rlist.items():
3003 if nr.fail_msg or not nr.payload:
3005 for (name, path, status, diagnose, variants,
3006 params, api_versions) in nr.payload:
3007 if name not in all_os:
3008 # build a list of nodes for this os containing empty lists
3009 # for each node in node_list
3011 for nname in good_nodes:
3012 all_os[name][nname] = []
3013 # convert params from [name, help] to (name, help)
3014 params = [tuple(v) for v in params]
3015 all_os[name][node_name].append((path, status, diagnose,
3016 variants, params, api_versions))
3019 def Exec(self, feedback_fn):
3020 """Compute the list of OSes.
3023 valid_nodes = [node for node in self.cfg.GetOnlineNodeList()]
3024 node_data = self.rpc.call_os_diagnose(valid_nodes)
3025 pol = self._DiagnoseByOS(node_data)
3027 cluster = self.cfg.GetClusterInfo()
3029 for os_name in utils.NiceSort(pol.keys()):
3030 os_data = pol[os_name]
3033 (variants, params, api_versions) = null_state = (set(), set(), set())
3034 for idx, osl in enumerate(os_data.values()):
3035 valid = bool(valid and osl and osl[0][1])
3037 (variants, params, api_versions) = null_state
3039 node_variants, node_params, node_api = osl[0][3:6]
3040 if idx == 0: # first entry
3041 variants = set(node_variants)
3042 params = set(node_params)
3043 api_versions = set(node_api)
3044 else: # keep consistency
3045 variants.intersection_update(node_variants)
3046 params.intersection_update(node_params)
3047 api_versions.intersection_update(node_api)
3049 is_hid = os_name in cluster.hidden_os
3050 is_blk = os_name in cluster.blacklisted_os
3051 if ((self._HID not in self.op.output_fields and is_hid) or
3052 (self._BLK not in self.op.output_fields and is_blk) or
3053 (self._VLD not in self.op.output_fields and not valid)):
3056 for field in self.op.output_fields:
3059 elif field == self._VLD:
3061 elif field == "node_status":
3062 # this is just a copy of the dict
3064 for node_name, nos_list in os_data.items():
3065 val[node_name] = nos_list
3066 elif field == "variants":
3067 val = utils.NiceSort(list(variants))
3068 elif field == "parameters":
3070 elif field == "api_versions":
3071 val = list(api_versions)
3072 elif field == self._HID:
3074 elif field == self._BLK:
3077 raise errors.ParameterError(field)
3084 class LURemoveNode(LogicalUnit):
3085 """Logical unit for removing a node.
3088 HPATH = "node-remove"
3089 HTYPE = constants.HTYPE_NODE
3094 def BuildHooksEnv(self):
3097 This doesn't run on the target node in the pre phase as a failed
3098 node would then be impossible to remove.
3102 "OP_TARGET": self.op.node_name,
3103 "NODE_NAME": self.op.node_name,
3105 all_nodes = self.cfg.GetNodeList()
3107 all_nodes.remove(self.op.node_name)
3109 logging.warning("Node %s which is about to be removed not found"
3110 " in the all nodes list", self.op.node_name)
3111 return env, all_nodes, all_nodes
3113 def CheckPrereq(self):
3114 """Check prerequisites.
3117 - the node exists in the configuration
3118 - it does not have primary or secondary instances
3119 - it's not the master
3121 Any errors are signaled by raising errors.OpPrereqError.
3124 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
3125 node = self.cfg.GetNodeInfo(self.op.node_name)
3126 assert node is not None
3128 instance_list = self.cfg.GetInstanceList()
3130 masternode = self.cfg.GetMasterNode()
3131 if node.name == masternode:
3132 raise errors.OpPrereqError("Node is the master node,"
3133 " you need to failover first.",
3136 for instance_name in instance_list:
3137 instance = self.cfg.GetInstanceInfo(instance_name)
3138 if node.name in instance.all_nodes:
3139 raise errors.OpPrereqError("Instance %s is still running on the node,"
3140 " please remove first." % instance_name,
3142 self.op.node_name = node.name
3145 def Exec(self, feedback_fn):
3146 """Removes the node from the cluster.
3150 logging.info("Stopping the node daemon and removing configs from node %s",
3153 modify_ssh_setup = self.cfg.GetClusterInfo().modify_ssh_setup
3155 # Promote nodes to master candidate as needed
3156 _AdjustCandidatePool(self, exceptions=[node.name])
3157 self.context.RemoveNode(node.name)
3159 # Run post hooks on the node before it's removed
3160 hm = self.proc.hmclass(self.rpc.call_hooks_runner, self)
3162 hm.RunPhase(constants.HOOKS_PHASE_POST, [node.name])
3164 # pylint: disable-msg=W0702
3165 self.LogWarning("Errors occurred running hooks on %s" % node.name)
3167 result = self.rpc.call_node_leave_cluster(node.name, modify_ssh_setup)
3168 msg = result.fail_msg
3170 self.LogWarning("Errors encountered on the remote node while leaving"
3171 " the cluster: %s", msg)
3173 # Remove node from our /etc/hosts
3174 if self.cfg.GetClusterInfo().modify_etc_hosts:
3175 master_node = self.cfg.GetMasterNode()
3176 result = self.rpc.call_etc_hosts_modify(master_node,
3177 constants.ETC_HOSTS_REMOVE,
3179 result.Raise("Can't update hosts file with new host data")
3180 _RedistributeAncillaryFiles(self)
3183 class LUQueryNodes(NoHooksLU):
3184 """Logical unit for querying nodes.
3187 # pylint: disable-msg=W0142
3190 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
3191 ("use_locking", False, ht.TBool),
3195 _SIMPLE_FIELDS = ["name", "serial_no", "ctime", "mtime", "uuid",
3196 "master_candidate", "offline", "drained"]
3198 _FIELDS_DYNAMIC = utils.FieldSet(
3200 "mtotal", "mnode", "mfree",
3202 "ctotal", "cnodes", "csockets",
3205 _FIELDS_STATIC = utils.FieldSet(*[
3206 "pinst_cnt", "sinst_cnt",
3207 "pinst_list", "sinst_list",
3208 "pip", "sip", "tags",
3210 "role"] + _SIMPLE_FIELDS
3213 def CheckArguments(self):
3214 _CheckOutputFields(static=self._FIELDS_STATIC,
3215 dynamic=self._FIELDS_DYNAMIC,
3216 selected=self.op.output_fields)
3218 def ExpandNames(self):
3219 self.needed_locks = {}
3220 self.share_locks[locking.LEVEL_NODE] = 1
3223 self.wanted = _GetWantedNodes(self, self.op.names)
3225 self.wanted = locking.ALL_SET
3227 self.do_node_query = self._FIELDS_STATIC.NonMatching(self.op.output_fields)
3228 self.do_locking = self.do_node_query and self.op.use_locking
3230 # if we don't request only static fields, we need to lock the nodes
3231 self.needed_locks[locking.LEVEL_NODE] = self.wanted
3233 def Exec(self, feedback_fn):
3234 """Computes the list of nodes and their attributes.
3237 all_info = self.cfg.GetAllNodesInfo()
3239 nodenames = self.acquired_locks[locking.LEVEL_NODE]
3240 elif self.wanted != locking.ALL_SET:
3241 nodenames = self.wanted
3242 missing = set(nodenames).difference(all_info.keys())
3244 raise errors.OpExecError(
3245 "Some nodes were removed before retrieving their data: %s" % missing)
3247 nodenames = all_info.keys()
3249 nodenames = utils.NiceSort(nodenames)
3250 nodelist = [all_info[name] for name in nodenames]
3252 # begin data gathering
3254 if self.do_node_query:
3256 node_data = self.rpc.call_node_info(nodenames, self.cfg.GetVGName(),
3257 self.cfg.GetHypervisorType())
3258 for name in nodenames:
3259 nodeinfo = node_data[name]
3260 if not nodeinfo.fail_msg and nodeinfo.payload:
3261 nodeinfo = nodeinfo.payload
3262 fn = utils.TryConvert
3264 "mtotal": fn(int, nodeinfo.get('memory_total', None)),
3265 "mnode": fn(int, nodeinfo.get('memory_dom0', None)),
3266 "mfree": fn(int, nodeinfo.get('memory_free', None)),
3267 "dtotal": fn(int, nodeinfo.get('vg_size', None)),
3268 "dfree": fn(int, nodeinfo.get('vg_free', None)),
3269 "ctotal": fn(int, nodeinfo.get('cpu_total', None)),
3270 "bootid": nodeinfo.get('bootid', None),
3271 "cnodes": fn(int, nodeinfo.get('cpu_nodes', None)),
3272 "csockets": fn(int, nodeinfo.get('cpu_sockets', None)),
3275 live_data[name] = {}
3277 live_data = dict.fromkeys(nodenames, {})
3279 node_to_primary = dict([(name, set()) for name in nodenames])
3280 node_to_secondary = dict([(name, set()) for name in nodenames])
3282 inst_fields = frozenset(("pinst_cnt", "pinst_list",
3283 "sinst_cnt", "sinst_list"))
3284 if inst_fields & frozenset(self.op.output_fields):
3285 inst_data = self.cfg.GetAllInstancesInfo()
3287 for inst in inst_data.values():
3288 if inst.primary_node in node_to_primary:
3289 node_to_primary[inst.primary_node].add(inst.name)
3290 for secnode in inst.secondary_nodes:
3291 if secnode in node_to_secondary:
3292 node_to_secondary[secnode].add(inst.name)
3294 master_node = self.cfg.GetMasterNode()
3296 # end data gathering
3299 for node in nodelist:
3301 for field in self.op.output_fields:
3302 if field in self._SIMPLE_FIELDS:
3303 val = getattr(node, field)
3304 elif field == "pinst_list":
3305 val = list(node_to_primary[node.name])
3306 elif field == "sinst_list":
3307 val = list(node_to_secondary[node.name])
3308 elif field == "pinst_cnt":
3309 val = len(node_to_primary[node.name])
3310 elif field == "sinst_cnt":
3311 val = len(node_to_secondary[node.name])
3312 elif field == "pip":
3313 val = node.primary_ip
3314 elif field == "sip":
3315 val = node.secondary_ip
3316 elif field == "tags":
3317 val = list(node.GetTags())
3318 elif field == "master":
3319 val = node.name == master_node
3320 elif self._FIELDS_DYNAMIC.Matches(field):
3321 val = live_data[node.name].get(field, None)
3322 elif field == "role":
3323 if node.name == master_node:
3325 elif node.master_candidate:
3334 raise errors.ParameterError(field)
3335 node_output.append(val)
3336 output.append(node_output)
3341 class LUQueryNodeVolumes(NoHooksLU):
3342 """Logical unit for getting volumes on node(s).
3346 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
3347 ("output_fields", ht.NoDefault, ht.TListOf(ht.TNonEmptyString)),
3350 _FIELDS_DYNAMIC = utils.FieldSet("phys", "vg", "name", "size", "instance")
3351 _FIELDS_STATIC = utils.FieldSet("node")
3353 def CheckArguments(self):
3354 _CheckOutputFields(static=self._FIELDS_STATIC,
3355 dynamic=self._FIELDS_DYNAMIC,
3356 selected=self.op.output_fields)
3358 def ExpandNames(self):
3359 self.needed_locks = {}
3360 self.share_locks[locking.LEVEL_NODE] = 1
3361 if not self.op.nodes:
3362 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
3364 self.needed_locks[locking.LEVEL_NODE] = \
3365 _GetWantedNodes(self, self.op.nodes)
3367 def Exec(self, feedback_fn):
3368 """Computes the list of nodes and their attributes.
3371 nodenames = self.acquired_locks[locking.LEVEL_NODE]
3372 volumes = self.rpc.call_node_volumes(nodenames)
3374 ilist = [self.cfg.GetInstanceInfo(iname) for iname
3375 in self.cfg.GetInstanceList()]
3377 lv_by_node = dict([(inst, inst.MapLVsByNode()) for inst in ilist])
3380 for node in nodenames:
3381 nresult = volumes[node]
3384 msg = nresult.fail_msg
3386 self.LogWarning("Can't compute volume data on node %s: %s", node, msg)
3389 node_vols = nresult.payload[:]
3390 node_vols.sort(key=lambda vol: vol['dev'])
3392 for vol in node_vols:
3394 for field in self.op.output_fields:
3397 elif field == "phys":
3401 elif field == "name":
3403 elif field == "size":
3404 val = int(float(vol['size']))
3405 elif field == "instance":
3407 if node not in lv_by_node[inst]:
3409 if vol['name'] in lv_by_node[inst][node]:
3415 raise errors.ParameterError(field)
3416 node_output.append(str(val))
3418 output.append(node_output)
3423 class LUQueryNodeStorage(NoHooksLU):
3424 """Logical unit for getting information on storage units on node(s).
3427 _FIELDS_STATIC = utils.FieldSet(constants.SF_NODE)
3429 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
3430 ("storage_type", ht.NoDefault, _CheckStorageType),
3431 ("output_fields", ht.NoDefault, ht.TListOf(ht.TNonEmptyString)),
3432 ("name", None, ht.TMaybeString),
3436 def CheckArguments(self):
3437 _CheckOutputFields(static=self._FIELDS_STATIC,
3438 dynamic=utils.FieldSet(*constants.VALID_STORAGE_FIELDS),
3439 selected=self.op.output_fields)
3441 def ExpandNames(self):
3442 self.needed_locks = {}
3443 self.share_locks[locking.LEVEL_NODE] = 1
3446 self.needed_locks[locking.LEVEL_NODE] = \
3447 _GetWantedNodes(self, self.op.nodes)
3449 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
3451 def Exec(self, feedback_fn):
3452 """Computes the list of nodes and their attributes.
3455 self.nodes = self.acquired_locks[locking.LEVEL_NODE]
3457 # Always get name to sort by
3458 if constants.SF_NAME in self.op.output_fields:
3459 fields = self.op.output_fields[:]
3461 fields = [constants.SF_NAME] + self.op.output_fields
3463 # Never ask for node or type as it's only known to the LU
3464 for extra in [constants.SF_NODE, constants.SF_TYPE]:
3465 while extra in fields:
3466 fields.remove(extra)
3468 field_idx = dict([(name, idx) for (idx, name) in enumerate(fields)])
3469 name_idx = field_idx[constants.SF_NAME]
3471 st_args = _GetStorageTypeArgs(self.cfg, self.op.storage_type)
3472 data = self.rpc.call_storage_list(self.nodes,
3473 self.op.storage_type, st_args,
3474 self.op.name, fields)
3478 for node in utils.NiceSort(self.nodes):
3479 nresult = data[node]
3483 msg = nresult.fail_msg
3485 self.LogWarning("Can't get storage data from node %s: %s", node, msg)
3488 rows = dict([(row[name_idx], row) for row in nresult.payload])
3490 for name in utils.NiceSort(rows.keys()):
3495 for field in self.op.output_fields:
3496 if field == constants.SF_NODE:
3498 elif field == constants.SF_TYPE:
3499 val = self.op.storage_type
3500 elif field in field_idx:
3501 val = row[field_idx[field]]
3503 raise errors.ParameterError(field)
3512 class LUModifyNodeStorage(NoHooksLU):
3513 """Logical unit for modifying a storage volume on a node.
3518 ("storage_type", ht.NoDefault, _CheckStorageType),
3519 ("name", ht.NoDefault, ht.TNonEmptyString),
3520 ("changes", ht.NoDefault, ht.TDict),
3524 def CheckArguments(self):
3525 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
3527 storage_type = self.op.storage_type
3530 modifiable = constants.MODIFIABLE_STORAGE_FIELDS[storage_type]
3532 raise errors.OpPrereqError("Storage units of type '%s' can not be"
3533 " modified" % storage_type,
3536 diff = set(self.op.changes.keys()) - modifiable
3538 raise errors.OpPrereqError("The following fields can not be modified for"
3539 " storage units of type '%s': %r" %
3540 (storage_type, list(diff)),
3543 def ExpandNames(self):
3544 self.needed_locks = {
3545 locking.LEVEL_NODE: self.op.node_name,
3548 def Exec(self, feedback_fn):
3549 """Computes the list of nodes and their attributes.
3552 st_args = _GetStorageTypeArgs(self.cfg, self.op.storage_type)
3553 result = self.rpc.call_storage_modify(self.op.node_name,
3554 self.op.storage_type, st_args,
3555 self.op.name, self.op.changes)
3556 result.Raise("Failed to modify storage unit '%s' on %s" %
3557 (self.op.name, self.op.node_name))
3560 class LUAddNode(LogicalUnit):
3561 """Logical unit for adding node to the cluster.
3565 HTYPE = constants.HTYPE_NODE
3568 ("primary_ip", None, ht.NoType),
3569 ("secondary_ip", None, ht.TMaybeString),
3570 ("readd", False, ht.TBool),
3571 ("nodegroup", None, ht.TMaybeString)
3574 def CheckArguments(self):
3575 self.primary_ip_family = self.cfg.GetPrimaryIPFamily()
3576 # validate/normalize the node name
3577 self.hostname = netutils.GetHostname(name=self.op.node_name,
3578 family=self.primary_ip_family)
3579 self.op.node_name = self.hostname.name
3580 if self.op.readd and self.op.nodegroup:
3581 raise errors.OpPrereqError("Cannot pass a nodegroup when a node is"
3582 " being readded", errors.ECODE_INVAL)
3584 def BuildHooksEnv(self):
3587 This will run on all nodes before, and on all nodes + the new node after.
3591 "OP_TARGET": self.op.node_name,
3592 "NODE_NAME": self.op.node_name,
3593 "NODE_PIP": self.op.primary_ip,
3594 "NODE_SIP": self.op.secondary_ip,
3596 nodes_0 = self.cfg.GetNodeList()
3597 nodes_1 = nodes_0 + [self.op.node_name, ]
3598 return env, nodes_0, nodes_1
3600 def CheckPrereq(self):
3601 """Check prerequisites.
3604 - the new node is not already in the config
3606 - its parameters (single/dual homed) matches the cluster
3608 Any errors are signaled by raising errors.OpPrereqError.
3612 hostname = self.hostname
3613 node = hostname.name
3614 primary_ip = self.op.primary_ip = hostname.ip
3615 if self.op.secondary_ip is None:
3616 if self.primary_ip_family == netutils.IP6Address.family:
3617 raise errors.OpPrereqError("When using a IPv6 primary address, a valid"
3618 " IPv4 address must be given as secondary",
3620 self.op.secondary_ip = primary_ip
3622 secondary_ip = self.op.secondary_ip
3623 if not netutils.IP4Address.IsValid(secondary_ip):
3624 raise errors.OpPrereqError("Secondary IP (%s) needs to be a valid IPv4"
3625 " address" % secondary_ip, errors.ECODE_INVAL)
3627 node_list = cfg.GetNodeList()
3628 if not self.op.readd and node in node_list:
3629 raise errors.OpPrereqError("Node %s is already in the configuration" %
3630 node, errors.ECODE_EXISTS)
3631 elif self.op.readd and node not in node_list:
3632 raise errors.OpPrereqError("Node %s is not in the configuration" % node,
3635 self.changed_primary_ip = False
3637 for existing_node_name in node_list:
3638 existing_node = cfg.GetNodeInfo(existing_node_name)
3640 if self.op.readd and node == existing_node_name:
3641 if existing_node.secondary_ip != secondary_ip:
3642 raise errors.OpPrereqError("Readded node doesn't have the same IP"
3643 " address configuration as before",
3645 if existing_node.primary_ip != primary_ip:
3646 self.changed_primary_ip = True
3650 if (existing_node.primary_ip == primary_ip or
3651 existing_node.secondary_ip == primary_ip or
3652 existing_node.primary_ip == secondary_ip or
3653 existing_node.secondary_ip == secondary_ip):
3654 raise errors.OpPrereqError("New node ip address(es) conflict with"
3655 " existing node %s" % existing_node.name,
3656 errors.ECODE_NOTUNIQUE)
3658 # check that the type of the node (single versus dual homed) is the
3659 # same as for the master
3660 myself = cfg.GetNodeInfo(self.cfg.GetMasterNode())
3661 master_singlehomed = myself.secondary_ip == myself.primary_ip
3662 newbie_singlehomed = secondary_ip == primary_ip
3663 if master_singlehomed != newbie_singlehomed:
3664 if master_singlehomed:
3665 raise errors.OpPrereqError("The master has no private ip but the"
3666 " new node has one",
3669 raise errors.OpPrereqError("The master has a private ip but the"
3670 " new node doesn't have one",
3673 # checks reachability
3674 if not netutils.TcpPing(primary_ip, constants.DEFAULT_NODED_PORT):
3675 raise errors.OpPrereqError("Node not reachable by ping",
3676 errors.ECODE_ENVIRON)
3678 if not newbie_singlehomed:
3679 # check reachability from my secondary ip to newbie's secondary ip
3680 if not netutils.TcpPing(secondary_ip, constants.DEFAULT_NODED_PORT,
3681 source=myself.secondary_ip):
3682 raise errors.OpPrereqError("Node secondary ip not reachable by TCP"
3683 " based ping to noded port",
3684 errors.ECODE_ENVIRON)
3691 self.master_candidate = _DecideSelfPromotion(self, exceptions=exceptions)
3694 self.new_node = self.cfg.GetNodeInfo(node)
3695 assert self.new_node is not None, "Can't retrieve locked node %s" % node
3697 nodegroup = cfg.LookupNodeGroup(self.op.nodegroup)
3698 self.new_node = objects.Node(name=node,
3699 primary_ip=primary_ip,
3700 secondary_ip=secondary_ip,
3701 master_candidate=self.master_candidate,
3702 offline=False, drained=False,
3703 nodegroup=nodegroup)
3705 def Exec(self, feedback_fn):
3706 """Adds the new node to the cluster.
3709 new_node = self.new_node
3710 node = new_node.name
3712 # for re-adds, reset the offline/drained/master-candidate flags;
3713 # we need to reset here, otherwise offline would prevent RPC calls
3714 # later in the procedure; this also means that if the re-add
3715 # fails, we are left with a non-offlined, broken node
3717 new_node.drained = new_node.offline = False # pylint: disable-msg=W0201
3718 self.LogInfo("Readding a node, the offline/drained flags were reset")
3719 # if we demote the node, we do cleanup later in the procedure
3720 new_node.master_candidate = self.master_candidate
3721 if self.changed_primary_ip:
3722 new_node.primary_ip = self.op.primary_ip
3724 # notify the user about any possible mc promotion
3725 if new_node.master_candidate:
3726 self.LogInfo("Node will be a master candidate")
3728 # check connectivity
3729 result = self.rpc.call_version([node])[node]
3730 result.Raise("Can't get version information from node %s" % node)
3731 if constants.PROTOCOL_VERSION == result.payload:
3732 logging.info("Communication to node %s fine, sw version %s match",
3733 node, result.payload)
3735 raise errors.OpExecError("Version mismatch master version %s,"
3736 " node version %s" %
3737 (constants.PROTOCOL_VERSION, result.payload))
3739 # Add node to our /etc/hosts, and add key to known_hosts
3740 if self.cfg.GetClusterInfo().modify_etc_hosts:
3741 master_node = self.cfg.GetMasterNode()
3742 result = self.rpc.call_etc_hosts_modify(master_node,
3743 constants.ETC_HOSTS_ADD,
3746 result.Raise("Can't update hosts file with new host data")
3748 if new_node.secondary_ip != new_node.primary_ip:
3749 result = self.rpc.call_node_has_ip_address(new_node.name,
3750 new_node.secondary_ip)
3751 result.Raise("Failure checking secondary ip on node %s" % new_node.name,
3752 prereq=True, ecode=errors.ECODE_ENVIRON)
3753 if not result.payload:
3754 raise errors.OpExecError("Node claims it doesn't have the secondary ip"
3755 " you gave (%s). Please fix and re-run this"
3756 " command." % new_node.secondary_ip)
3758 node_verify_list = [self.cfg.GetMasterNode()]
3759 node_verify_param = {
3760 constants.NV_NODELIST: [node],
3761 # TODO: do a node-net-test as well?
3764 result = self.rpc.call_node_verify(node_verify_list, node_verify_param,
3765 self.cfg.GetClusterName())
3766 for verifier in node_verify_list:
3767 result[verifier].Raise("Cannot communicate with node %s" % verifier)
3768 nl_payload = result[verifier].payload[constants.NV_NODELIST]
3770 for failed in nl_payload:
3771 feedback_fn("ssh/hostname verification failed"
3772 " (checking from %s): %s" %
3773 (verifier, nl_payload[failed]))
3774 raise errors.OpExecError("ssh/hostname verification failed.")
3777 _RedistributeAncillaryFiles(self)
3778 self.context.ReaddNode(new_node)
3779 # make sure we redistribute the config
3780 self.cfg.Update(new_node, feedback_fn)
3781 # and make sure the new node will not have old files around
3782 if not new_node.master_candidate:
3783 result = self.rpc.call_node_demote_from_mc(new_node.name)
3784 msg = result.fail_msg
3786 self.LogWarning("Node failed to demote itself from master"
3787 " candidate status: %s" % msg)
3789 _RedistributeAncillaryFiles(self, additional_nodes=[node])
3790 self.context.AddNode(new_node, self.proc.GetECId())
3793 class LUSetNodeParams(LogicalUnit):
3794 """Modifies the parameters of a node.
3797 HPATH = "node-modify"
3798 HTYPE = constants.HTYPE_NODE
3801 ("master_candidate", None, ht.TMaybeBool),
3802 ("offline", None, ht.TMaybeBool),
3803 ("drained", None, ht.TMaybeBool),
3804 ("auto_promote", False, ht.TBool),
3809 def CheckArguments(self):
3810 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
3811 all_mods = [self.op.offline, self.op.master_candidate, self.op.drained]
3812 if all_mods.count(None) == 3:
3813 raise errors.OpPrereqError("Please pass at least one modification",
3815 if all_mods.count(True) > 1:
3816 raise errors.OpPrereqError("Can't set the node into more than one"
3817 " state at the same time",
3820 # Boolean value that tells us whether we're offlining or draining the node
3821 self.offline_or_drain = (self.op.offline == True or
3822 self.op.drained == True)
3823 self.deoffline_or_drain = (self.op.offline == False or
3824 self.op.drained == False)
3825 self.might_demote = (self.op.master_candidate == False or
3826 self.offline_or_drain)
3828 self.lock_all = self.op.auto_promote and self.might_demote
3831 def ExpandNames(self):
3833 self.needed_locks = {locking.LEVEL_NODE: locking.ALL_SET}
3835 self.needed_locks = {locking.LEVEL_NODE: self.op.node_name}
3837 def BuildHooksEnv(self):
3840 This runs on the master node.
3844 "OP_TARGET": self.op.node_name,
3845 "MASTER_CANDIDATE": str(self.op.master_candidate),
3846 "OFFLINE": str(self.op.offline),
3847 "DRAINED": str(self.op.drained),
3849 nl = [self.cfg.GetMasterNode(),
3853 def CheckPrereq(self):
3854 """Check prerequisites.
3856 This only checks the instance list against the existing names.
3859 node = self.node = self.cfg.GetNodeInfo(self.op.node_name)
3861 if (self.op.master_candidate is not None or
3862 self.op.drained is not None or
3863 self.op.offline is not None):
3864 # we can't change the master's node flags
3865 if self.op.node_name == self.cfg.GetMasterNode():
3866 raise errors.OpPrereqError("The master role can be changed"
3867 " only via master-failover",
3871 if node.master_candidate and self.might_demote and not self.lock_all:
3872 assert not self.op.auto_promote, "auto-promote set but lock_all not"
3873 # check if after removing the current node, we're missing master
3875 (mc_remaining, mc_should, _) = \
3876 self.cfg.GetMasterCandidateStats(exceptions=[node.name])
3877 if mc_remaining < mc_should:
3878 raise errors.OpPrereqError("Not enough master candidates, please"
3879 " pass auto_promote to allow promotion",
3882 if (self.op.master_candidate == True and
3883 ((node.offline and not self.op.offline == False) or
3884 (node.drained and not self.op.drained == False))):
3885 raise errors.OpPrereqError("Node '%s' is offline or drained, can't set"
3886 " to master_candidate" % node.name,
3889 # If we're being deofflined/drained, we'll MC ourself if needed
3890 if (self.deoffline_or_drain and not self.offline_or_drain and not
3891 self.op.master_candidate == True and not node.master_candidate):
3892 self.op.master_candidate = _DecideSelfPromotion(self)
3893 if self.op.master_candidate:
3894 self.LogInfo("Autopromoting node to master candidate")
3898 def Exec(self, feedback_fn):
3907 if self.op.offline is not None:
3908 node.offline = self.op.offline
3909 result.append(("offline", str(self.op.offline)))
3910 if self.op.offline == True:
3911 if node.master_candidate:
3912 node.master_candidate = False
3914 result.append(("master_candidate", "auto-demotion due to offline"))
3916 node.drained = False
3917 result.append(("drained", "clear drained status due to offline"))
3919 if self.op.master_candidate is not None:
3920 node.master_candidate = self.op.master_candidate
3922 result.append(("master_candidate", str(self.op.master_candidate)))
3923 if self.op.master_candidate == False:
3924 rrc = self.rpc.call_node_demote_from_mc(node.name)
3927 self.LogWarning("Node failed to demote itself: %s" % msg)
3929 if self.op.drained is not None:
3930 node.drained = self.op.drained
3931 result.append(("drained", str(self.op.drained)))
3932 if self.op.drained == True:
3933 if node.master_candidate:
3934 node.master_candidate = False
3936 result.append(("master_candidate", "auto-demotion due to drain"))
3937 rrc = self.rpc.call_node_demote_from_mc(node.name)
3940 self.LogWarning("Node failed to demote itself: %s" % msg)
3942 node.offline = False
3943 result.append(("offline", "clear offline status due to drain"))
3945 # we locked all nodes, we adjust the CP before updating this node
3947 _AdjustCandidatePool(self, [node.name])
3949 # this will trigger configuration file update, if needed
3950 self.cfg.Update(node, feedback_fn)
3952 # this will trigger job queue propagation or cleanup
3954 self.context.ReaddNode(node)
3959 class LUPowercycleNode(NoHooksLU):
3960 """Powercycles a node.
3969 def CheckArguments(self):
3970 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
3971 if self.op.node_name == self.cfg.GetMasterNode() and not self.op.force:
3972 raise errors.OpPrereqError("The node is the master and the force"
3973 " parameter was not set",
3976 def ExpandNames(self):
3977 """Locking for PowercycleNode.
3979 This is a last-resort option and shouldn't block on other
3980 jobs. Therefore, we grab no locks.
3983 self.needed_locks = {}
3985 def Exec(self, feedback_fn):
3989 result = self.rpc.call_node_powercycle(self.op.node_name,
3990 self.cfg.GetHypervisorType())
3991 result.Raise("Failed to schedule the reboot")
3992 return result.payload
3995 class LUQueryClusterInfo(NoHooksLU):
3996 """Query cluster configuration.
4001 def ExpandNames(self):
4002 self.needed_locks = {}
4004 def Exec(self, feedback_fn):
4005 """Return cluster config.
4008 cluster = self.cfg.GetClusterInfo()
4011 # Filter just for enabled hypervisors
4012 for os_name, hv_dict in cluster.os_hvp.items():
4013 os_hvp[os_name] = {}
4014 for hv_name, hv_params in hv_dict.items():
4015 if hv_name in cluster.enabled_hypervisors:
4016 os_hvp[os_name][hv_name] = hv_params
4018 # Convert ip_family to ip_version
4019 primary_ip_version = constants.IP4_VERSION
4020 if cluster.primary_ip_family == netutils.IP6Address.family:
4021 primary_ip_version = constants.IP6_VERSION
4024 "software_version": constants.RELEASE_VERSION,
4025 "protocol_version": constants.PROTOCOL_VERSION,
4026 "config_version": constants.CONFIG_VERSION,
4027 "os_api_version": max(constants.OS_API_VERSIONS),
4028 "export_version": constants.EXPORT_VERSION,
4029 "architecture": (platform.architecture()[0], platform.machine()),
4030 "name": cluster.cluster_name,
4031 "master": cluster.master_node,
4032 "default_hypervisor": cluster.enabled_hypervisors[0],
4033 "enabled_hypervisors": cluster.enabled_hypervisors,
4034 "hvparams": dict([(hypervisor_name, cluster.hvparams[hypervisor_name])
4035 for hypervisor_name in cluster.enabled_hypervisors]),
4037 "beparams": cluster.beparams,
4038 "osparams": cluster.osparams,
4039 "nicparams": cluster.nicparams,
4040 "candidate_pool_size": cluster.candidate_pool_size,
4041 "master_netdev": cluster.master_netdev,
4042 "volume_group_name": cluster.volume_group_name,
4043 "drbd_usermode_helper": cluster.drbd_usermode_helper,
4044 "file_storage_dir": cluster.file_storage_dir,
4045 "maintain_node_health": cluster.maintain_node_health,
4046 "ctime": cluster.ctime,
4047 "mtime": cluster.mtime,
4048 "uuid": cluster.uuid,
4049 "tags": list(cluster.GetTags()),
4050 "uid_pool": cluster.uid_pool,
4051 "default_iallocator": cluster.default_iallocator,
4052 "reserved_lvs": cluster.reserved_lvs,
4053 "primary_ip_version": primary_ip_version,
4054 "prealloc_wipe_disks": cluster.prealloc_wipe_disks,
4060 class LUQueryConfigValues(NoHooksLU):
4061 """Return configuration values.
4064 _OP_PARAMS = [_POutputFields]
4066 _FIELDS_DYNAMIC = utils.FieldSet()
4067 _FIELDS_STATIC = utils.FieldSet("cluster_name", "master_node", "drain_flag",
4068 "watcher_pause", "volume_group_name")
4070 def CheckArguments(self):
4071 _CheckOutputFields(static=self._FIELDS_STATIC,
4072 dynamic=self._FIELDS_DYNAMIC,
4073 selected=self.op.output_fields)
4075 def ExpandNames(self):
4076 self.needed_locks = {}
4078 def Exec(self, feedback_fn):
4079 """Dump a representation of the cluster config to the standard output.
4083 for field in self.op.output_fields:
4084 if field == "cluster_name":
4085 entry = self.cfg.GetClusterName()
4086 elif field == "master_node":
4087 entry = self.cfg.GetMasterNode()
4088 elif field == "drain_flag":
4089 entry = os.path.exists(constants.JOB_QUEUE_DRAIN_FILE)
4090 elif field == "watcher_pause":
4091 entry = utils.ReadWatcherPauseFile(constants.WATCHER_PAUSEFILE)
4092 elif field == "volume_group_name":
4093 entry = self.cfg.GetVGName()
4095 raise errors.ParameterError(field)
4096 values.append(entry)
4100 class LUActivateInstanceDisks(NoHooksLU):
4101 """Bring up an instance's disks.
4106 ("ignore_size", False, ht.TBool),
4110 def ExpandNames(self):
4111 self._ExpandAndLockInstance()
4112 self.needed_locks[locking.LEVEL_NODE] = []
4113 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
4115 def DeclareLocks(self, level):
4116 if level == locking.LEVEL_NODE:
4117 self._LockInstancesNodes()
4119 def CheckPrereq(self):
4120 """Check prerequisites.
4122 This checks that the instance is in the cluster.
4125 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
4126 assert self.instance is not None, \
4127 "Cannot retrieve locked instance %s" % self.op.instance_name
4128 _CheckNodeOnline(self, self.instance.primary_node)
4130 def Exec(self, feedback_fn):
4131 """Activate the disks.
4134 disks_ok, disks_info = \
4135 _AssembleInstanceDisks(self, self.instance,
4136 ignore_size=self.op.ignore_size)
4138 raise errors.OpExecError("Cannot activate block devices")
4143 def _AssembleInstanceDisks(lu, instance, disks=None, ignore_secondaries=False,
4145 """Prepare the block devices for an instance.
4147 This sets up the block devices on all nodes.
4149 @type lu: L{LogicalUnit}
4150 @param lu: the logical unit on whose behalf we execute
4151 @type instance: L{objects.Instance}
4152 @param instance: the instance for whose disks we assemble
4153 @type disks: list of L{objects.Disk} or None
4154 @param disks: which disks to assemble (or all, if None)
4155 @type ignore_secondaries: boolean
4156 @param ignore_secondaries: if true, errors on secondary nodes
4157 won't result in an error return from the function
4158 @type ignore_size: boolean
4159 @param ignore_size: if true, the current known size of the disk
4160 will not be used during the disk activation, useful for cases
4161 when the size is wrong
4162 @return: False if the operation failed, otherwise a list of
4163 (host, instance_visible_name, node_visible_name)
4164 with the mapping from node devices to instance devices
4169 iname = instance.name
4170 disks = _ExpandCheckDisks(instance, disks)
4172 # With the two passes mechanism we try to reduce the window of
4173 # opportunity for the race condition of switching DRBD to primary
4174 # before handshaking occured, but we do not eliminate it
4176 # The proper fix would be to wait (with some limits) until the
4177 # connection has been made and drbd transitions from WFConnection
4178 # into any other network-connected state (Connected, SyncTarget,
4181 # 1st pass, assemble on all nodes in secondary mode
4182 for inst_disk in disks:
4183 for node, node_disk in inst_disk.ComputeNodeTree(instance.primary_node):
4185 node_disk = node_disk.Copy()
4186 node_disk.UnsetSize()
4187 lu.cfg.SetDiskID(node_disk, node)
4188 result = lu.rpc.call_blockdev_assemble(node, node_disk, iname, False)
4189 msg = result.fail_msg
4191 lu.proc.LogWarning("Could not prepare block device %s on node %s"
4192 " (is_primary=False, pass=1): %s",
4193 inst_disk.iv_name, node, msg)
4194 if not ignore_secondaries:
4197 # FIXME: race condition on drbd migration to primary
4199 # 2nd pass, do only the primary node
4200 for inst_disk in disks:
4203 for node, node_disk in inst_disk.ComputeNodeTree(instance.primary_node):
4204 if node != instance.primary_node:
4207 node_disk = node_disk.Copy()
4208 node_disk.UnsetSize()
4209 lu.cfg.SetDiskID(node_disk, node)
4210 result = lu.rpc.call_blockdev_assemble(node, node_disk, iname, True)
4211 msg = result.fail_msg
4213 lu.proc.LogWarning("Could not prepare block device %s on node %s"
4214 " (is_primary=True, pass=2): %s",
4215 inst_disk.iv_name, node, msg)
4218 dev_path = result.payload
4220 device_info.append((instance.primary_node, inst_disk.iv_name, dev_path))
4222 # leave the disks configured for the primary node
4223 # this is a workaround that would be fixed better by
4224 # improving the logical/physical id handling
4226 lu.cfg.SetDiskID(disk, instance.primary_node)
4228 return disks_ok, device_info
4231 def _StartInstanceDisks(lu, instance, force):
4232 """Start the disks of an instance.
4235 disks_ok, _ = _AssembleInstanceDisks(lu, instance,
4236 ignore_secondaries=force)
4238 _ShutdownInstanceDisks(lu, instance)
4239 if force is not None and not force:
4240 lu.proc.LogWarning("", hint="If the message above refers to a"
4242 " you can retry the operation using '--force'.")
4243 raise errors.OpExecError("Disk consistency error")
4246 class LUDeactivateInstanceDisks(NoHooksLU):
4247 """Shutdown an instance's disks.
4255 def ExpandNames(self):
4256 self._ExpandAndLockInstance()
4257 self.needed_locks[locking.LEVEL_NODE] = []
4258 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
4260 def DeclareLocks(self, level):
4261 if level == locking.LEVEL_NODE:
4262 self._LockInstancesNodes()
4264 def CheckPrereq(self):
4265 """Check prerequisites.
4267 This checks that the instance is in the cluster.
4270 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
4271 assert self.instance is not None, \
4272 "Cannot retrieve locked instance %s" % self.op.instance_name
4274 def Exec(self, feedback_fn):
4275 """Deactivate the disks
4278 instance = self.instance
4279 _SafeShutdownInstanceDisks(self, instance)
4282 def _SafeShutdownInstanceDisks(lu, instance, disks=None):
4283 """Shutdown block devices of an instance.
4285 This function checks if an instance is running, before calling
4286 _ShutdownInstanceDisks.
4289 _CheckInstanceDown(lu, instance, "cannot shutdown disks")
4290 _ShutdownInstanceDisks(lu, instance, disks=disks)
4293 def _ExpandCheckDisks(instance, disks):
4294 """Return the instance disks selected by the disks list
4296 @type disks: list of L{objects.Disk} or None
4297 @param disks: selected disks
4298 @rtype: list of L{objects.Disk}
4299 @return: selected instance disks to act on
4303 return instance.disks
4305 if not set(disks).issubset(instance.disks):
4306 raise errors.ProgrammerError("Can only act on disks belonging to the"
4311 def _ShutdownInstanceDisks(lu, instance, disks=None, ignore_primary=False):
4312 """Shutdown block devices of an instance.
4314 This does the shutdown on all nodes of the instance.
4316 If the ignore_primary is false, errors on the primary node are
4321 disks = _ExpandCheckDisks(instance, disks)
4324 for node, top_disk in disk.ComputeNodeTree(instance.primary_node):
4325 lu.cfg.SetDiskID(top_disk, node)
4326 result = lu.rpc.call_blockdev_shutdown(node, top_disk)
4327 msg = result.fail_msg
4329 lu.LogWarning("Could not shutdown block device %s on node %s: %s",
4330 disk.iv_name, node, msg)
4331 if not ignore_primary or node != instance.primary_node:
4336 def _CheckNodeFreeMemory(lu, node, reason, requested, hypervisor_name):
4337 """Checks if a node has enough free memory.
4339 This function check if a given node has the needed amount of free
4340 memory. In case the node has less memory or we cannot get the
4341 information from the node, this function raise an OpPrereqError
4344 @type lu: C{LogicalUnit}
4345 @param lu: a logical unit from which we get configuration data
4347 @param node: the node to check
4348 @type reason: C{str}
4349 @param reason: string to use in the error message
4350 @type requested: C{int}
4351 @param requested: the amount of memory in MiB to check for
4352 @type hypervisor_name: C{str}
4353 @param hypervisor_name: the hypervisor to ask for memory stats
4354 @raise errors.OpPrereqError: if the node doesn't have enough memory, or
4355 we cannot check the node
4358 nodeinfo = lu.rpc.call_node_info([node], lu.cfg.GetVGName(), hypervisor_name)
4359 nodeinfo[node].Raise("Can't get data from node %s" % node,
4360 prereq=True, ecode=errors.ECODE_ENVIRON)
4361 free_mem = nodeinfo[node].payload.get('memory_free', None)
4362 if not isinstance(free_mem, int):
4363 raise errors.OpPrereqError("Can't compute free memory on node %s, result"
4364 " was '%s'" % (node, free_mem),
4365 errors.ECODE_ENVIRON)
4366 if requested > free_mem:
4367 raise errors.OpPrereqError("Not enough memory on node %s for %s:"
4368 " needed %s MiB, available %s MiB" %
4369 (node, reason, requested, free_mem),
4373 def _CheckNodesFreeDisk(lu, nodenames, requested):
4374 """Checks if nodes have enough free disk space in the default VG.
4376 This function check if all given nodes have the needed amount of
4377 free disk. In case any node has less disk or we cannot get the
4378 information from the node, this function raise an OpPrereqError
4381 @type lu: C{LogicalUnit}
4382 @param lu: a logical unit from which we get configuration data
4383 @type nodenames: C{list}
4384 @param nodenames: the list of node names to check
4385 @type requested: C{int}
4386 @param requested: the amount of disk in MiB to check for
4387 @raise errors.OpPrereqError: if the node doesn't have enough disk, or
4388 we cannot check the node
4391 nodeinfo = lu.rpc.call_node_info(nodenames, lu.cfg.GetVGName(),
4392 lu.cfg.GetHypervisorType())
4393 for node in nodenames:
4394 info = nodeinfo[node]
4395 info.Raise("Cannot get current information from node %s" % node,
4396 prereq=True, ecode=errors.ECODE_ENVIRON)
4397 vg_free = info.payload.get("vg_free", None)
4398 if not isinstance(vg_free, int):
4399 raise errors.OpPrereqError("Can't compute free disk space on node %s,"
4400 " result was '%s'" % (node, vg_free),
4401 errors.ECODE_ENVIRON)
4402 if requested > vg_free:
4403 raise errors.OpPrereqError("Not enough disk space on target node %s:"
4404 " required %d MiB, available %d MiB" %
4405 (node, requested, vg_free),
4409 class LUStartupInstance(LogicalUnit):
4410 """Starts an instance.
4413 HPATH = "instance-start"
4414 HTYPE = constants.HTYPE_INSTANCE
4418 _PIgnoreOfflineNodes,
4419 ("hvparams", ht.EmptyDict, ht.TDict),
4420 ("beparams", ht.EmptyDict, ht.TDict),
4424 def CheckArguments(self):
4426 if self.op.beparams:
4427 # fill the beparams dict
4428 utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
4430 def ExpandNames(self):
4431 self._ExpandAndLockInstance()
4433 def BuildHooksEnv(self):
4436 This runs on master, primary and secondary nodes of the instance.
4440 "FORCE": self.op.force,
4442 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
4443 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
4446 def CheckPrereq(self):
4447 """Check prerequisites.
4449 This checks that the instance is in the cluster.
4452 self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name)
4453 assert self.instance is not None, \
4454 "Cannot retrieve locked instance %s" % self.op.instance_name
4457 if self.op.hvparams:
4458 # check hypervisor parameter syntax (locally)
4459 cluster = self.cfg.GetClusterInfo()
4460 utils.ForceDictType(self.op.hvparams, constants.HVS_PARAMETER_TYPES)
4461 filled_hvp = cluster.FillHV(instance)
4462 filled_hvp.update(self.op.hvparams)
4463 hv_type = hypervisor.GetHypervisor(instance.hypervisor)
4464 hv_type.CheckParameterSyntax(filled_hvp)
4465 _CheckHVParams(self, instance.all_nodes, instance.hypervisor, filled_hvp)
4467 self.primary_offline = self.cfg.GetNodeInfo(instance.primary_node).offline
4469 if self.primary_offline and self.op.ignore_offline_nodes:
4470 self.proc.LogWarning("Ignoring offline primary node")
4472 if self.op.hvparams or self.op.beparams:
4473 self.proc.LogWarning("Overridden parameters are ignored")
4475 _CheckNodeOnline(self, instance.primary_node)
4477 bep = self.cfg.GetClusterInfo().FillBE(instance)
4479 # check bridges existence
4480 _CheckInstanceBridgesExist(self, instance)
4482 remote_info = self.rpc.call_instance_info(instance.primary_node,
4484 instance.hypervisor)
4485 remote_info.Raise("Error checking node %s" % instance.primary_node,
4486 prereq=True, ecode=errors.ECODE_ENVIRON)
4487 if not remote_info.payload: # not running already
4488 _CheckNodeFreeMemory(self, instance.primary_node,
4489 "starting instance %s" % instance.name,
4490 bep[constants.BE_MEMORY], instance.hypervisor)
4492 def Exec(self, feedback_fn):
4493 """Start the instance.
4496 instance = self.instance
4497 force = self.op.force
4499 self.cfg.MarkInstanceUp(instance.name)
4501 if self.primary_offline:
4502 assert self.op.ignore_offline_nodes
4503 self.proc.LogInfo("Primary node offline, marked instance as started")
4505 node_current = instance.primary_node
4507 _StartInstanceDisks(self, instance, force)
4509 result = self.rpc.call_instance_start(node_current, instance,
4510 self.op.hvparams, self.op.beparams)
4511 msg = result.fail_msg
4513 _ShutdownInstanceDisks(self, instance)
4514 raise errors.OpExecError("Could not start instance: %s" % msg)
4517 class LURebootInstance(LogicalUnit):
4518 """Reboot an instance.
4521 HPATH = "instance-reboot"
4522 HTYPE = constants.HTYPE_INSTANCE
4525 ("ignore_secondaries", False, ht.TBool),
4526 ("reboot_type", ht.NoDefault, ht.TElemOf(constants.REBOOT_TYPES)),
4531 def ExpandNames(self):
4532 self._ExpandAndLockInstance()
4534 def BuildHooksEnv(self):
4537 This runs on master, primary and secondary nodes of the instance.
4541 "IGNORE_SECONDARIES": self.op.ignore_secondaries,
4542 "REBOOT_TYPE": self.op.reboot_type,
4543 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
4545 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
4546 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
4549 def CheckPrereq(self):
4550 """Check prerequisites.
4552 This checks that the instance is in the cluster.
4555 self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name)
4556 assert self.instance is not None, \
4557 "Cannot retrieve locked instance %s" % self.op.instance_name
4559 _CheckNodeOnline(self, instance.primary_node)
4561 # check bridges existence
4562 _CheckInstanceBridgesExist(self, instance)
4564 def Exec(self, feedback_fn):
4565 """Reboot the instance.
4568 instance = self.instance
4569 ignore_secondaries = self.op.ignore_secondaries
4570 reboot_type = self.op.reboot_type
4572 node_current = instance.primary_node
4574 if reboot_type in [constants.INSTANCE_REBOOT_SOFT,
4575 constants.INSTANCE_REBOOT_HARD]:
4576 for disk in instance.disks:
4577 self.cfg.SetDiskID(disk, node_current)
4578 result = self.rpc.call_instance_reboot(node_current, instance,
4580 self.op.shutdown_timeout)
4581 result.Raise("Could not reboot instance")
4583 result = self.rpc.call_instance_shutdown(node_current, instance,
4584 self.op.shutdown_timeout)
4585 result.Raise("Could not shutdown instance for full reboot")
4586 _ShutdownInstanceDisks(self, instance)
4587 _StartInstanceDisks(self, instance, ignore_secondaries)
4588 result = self.rpc.call_instance_start(node_current, instance, None, None)
4589 msg = result.fail_msg
4591 _ShutdownInstanceDisks(self, instance)
4592 raise errors.OpExecError("Could not start instance for"
4593 " full reboot: %s" % msg)
4595 self.cfg.MarkInstanceUp(instance.name)
4598 class LUShutdownInstance(LogicalUnit):
4599 """Shutdown an instance.
4602 HPATH = "instance-stop"
4603 HTYPE = constants.HTYPE_INSTANCE
4606 _PIgnoreOfflineNodes,
4607 ("timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT, ht.TPositiveInt),
4611 def ExpandNames(self):
4612 self._ExpandAndLockInstance()
4614 def BuildHooksEnv(self):
4617 This runs on master, primary and secondary nodes of the instance.
4620 env = _BuildInstanceHookEnvByObject(self, self.instance)
4621 env["TIMEOUT"] = self.op.timeout
4622 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
4625 def CheckPrereq(self):
4626 """Check prerequisites.
4628 This checks that the instance is in the cluster.
4631 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
4632 assert self.instance is not None, \
4633 "Cannot retrieve locked instance %s" % self.op.instance_name
4635 self.primary_offline = \
4636 self.cfg.GetNodeInfo(self.instance.primary_node).offline
4638 if self.primary_offline and self.op.ignore_offline_nodes:
4639 self.proc.LogWarning("Ignoring offline primary node")
4641 _CheckNodeOnline(self, self.instance.primary_node)
4643 def Exec(self, feedback_fn):
4644 """Shutdown the instance.
4647 instance = self.instance
4648 node_current = instance.primary_node
4649 timeout = self.op.timeout
4651 self.cfg.MarkInstanceDown(instance.name)
4653 if self.primary_offline:
4654 assert self.op.ignore_offline_nodes
4655 self.proc.LogInfo("Primary node offline, marked instance as stopped")
4657 result = self.rpc.call_instance_shutdown(node_current, instance, timeout)
4658 msg = result.fail_msg
4660 self.proc.LogWarning("Could not shutdown instance: %s" % msg)
4662 _ShutdownInstanceDisks(self, instance)
4665 class LUReinstallInstance(LogicalUnit):
4666 """Reinstall an instance.
4669 HPATH = "instance-reinstall"
4670 HTYPE = constants.HTYPE_INSTANCE
4673 ("os_type", None, ht.TMaybeString),
4674 ("force_variant", False, ht.TBool),
4675 ("osparams", None, ht.TOr(ht.TDict, ht.TNone)),
4679 def ExpandNames(self):
4680 self._ExpandAndLockInstance()
4682 def BuildHooksEnv(self):
4685 This runs on master, primary and secondary nodes of the instance.
4688 env = _BuildInstanceHookEnvByObject(self, self.instance)
4689 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
4692 def CheckPrereq(self):
4693 """Check prerequisites.
4695 This checks that the instance is in the cluster and is not running.
4698 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
4699 assert instance is not None, \
4700 "Cannot retrieve locked instance %s" % self.op.instance_name
4701 _CheckNodeOnline(self, instance.primary_node)
4703 if instance.disk_template == constants.DT_DISKLESS:
4704 raise errors.OpPrereqError("Instance '%s' has no disks" %
4705 self.op.instance_name,
4707 _CheckInstanceDown(self, instance, "cannot reinstall")
4709 if self.op.os_type is not None:
4711 pnode = _ExpandNodeName(self.cfg, instance.primary_node)
4712 _CheckNodeHasOS(self, pnode, self.op.os_type, self.op.force_variant)
4713 instance_os = self.op.os_name
4715 instance_os = instance.os
4717 nodelist = list(instance.all_nodes)
4719 if self.op.osparams:
4720 i_osdict = _GetUpdatedParams(instance.osparams, self.op.osparams)
4721 _CheckOSParams(self, True, nodelist, instance_os, i_osdict)
4722 self.os_inst = i_osdict # the new dict (without defaults)
4726 self.instance = instance
4728 def Exec(self, feedback_fn):
4729 """Reinstall the instance.
4732 inst = self.instance
4734 if self.op.os_type is not None:
4735 feedback_fn("Changing OS to '%s'..." % self.op.os_type)
4736 inst.os = self.op.os_type
4737 # Write to configuration
4738 self.cfg.Update(inst, feedback_fn)
4740 _StartInstanceDisks(self, inst, None)
4742 feedback_fn("Running the instance OS create scripts...")
4743 # FIXME: pass debug option from opcode to backend
4744 result = self.rpc.call_instance_os_add(inst.primary_node, inst, True,
4745 self.op.debug_level,
4746 osparams=self.os_inst)
4747 result.Raise("Could not install OS for instance %s on node %s" %
4748 (inst.name, inst.primary_node))
4750 _ShutdownInstanceDisks(self, inst)
4753 class LURecreateInstanceDisks(LogicalUnit):
4754 """Recreate an instance's missing disks.
4757 HPATH = "instance-recreate-disks"
4758 HTYPE = constants.HTYPE_INSTANCE
4761 ("disks", ht.EmptyList, ht.TListOf(ht.TPositiveInt)),
4765 def ExpandNames(self):
4766 self._ExpandAndLockInstance()
4768 def BuildHooksEnv(self):
4771 This runs on master, primary and secondary nodes of the instance.
4774 env = _BuildInstanceHookEnvByObject(self, self.instance)
4775 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
4778 def CheckPrereq(self):
4779 """Check prerequisites.
4781 This checks that the instance is in the cluster and is not running.
4784 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
4785 assert instance is not None, \
4786 "Cannot retrieve locked instance %s" % self.op.instance_name
4787 _CheckNodeOnline(self, instance.primary_node)
4789 if instance.disk_template == constants.DT_DISKLESS:
4790 raise errors.OpPrereqError("Instance '%s' has no disks" %
4791 self.op.instance_name, errors.ECODE_INVAL)
4792 _CheckInstanceDown(self, instance, "cannot recreate disks")
4794 if not self.op.disks:
4795 self.op.disks = range(len(instance.disks))
4797 for idx in self.op.disks:
4798 if idx >= len(instance.disks):
4799 raise errors.OpPrereqError("Invalid disk index passed '%s'" % idx,
4802 self.instance = instance
4804 def Exec(self, feedback_fn):
4805 """Recreate the disks.
4809 for idx, _ in enumerate(self.instance.disks):
4810 if idx not in self.op.disks: # disk idx has not been passed in
4814 _CreateDisks(self, self.instance, to_skip=to_skip)
4817 class LURenameInstance(LogicalUnit):
4818 """Rename an instance.
4821 HPATH = "instance-rename"
4822 HTYPE = constants.HTYPE_INSTANCE
4825 ("new_name", ht.NoDefault, ht.TNonEmptyString),
4826 ("ip_check", False, ht.TBool),
4827 ("name_check", True, ht.TBool),
4830 def CheckArguments(self):
4834 if self.op.ip_check and not self.op.name_check:
4835 # TODO: make the ip check more flexible and not depend on the name check
4836 raise errors.OpPrereqError("Cannot do ip check without a name check",
4839 def BuildHooksEnv(self):
4842 This runs on master, primary and secondary nodes of the instance.
4845 env = _BuildInstanceHookEnvByObject(self, self.instance)
4846 env["INSTANCE_NEW_NAME"] = self.op.new_name
4847 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
4850 def CheckPrereq(self):
4851 """Check prerequisites.
4853 This checks that the instance is in the cluster and is not running.
4856 self.op.instance_name = _ExpandInstanceName(self.cfg,
4857 self.op.instance_name)
4858 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
4859 assert instance is not None
4860 _CheckNodeOnline(self, instance.primary_node)
4861 _CheckInstanceDown(self, instance, "cannot rename")
4862 self.instance = instance
4864 new_name = self.op.new_name
4865 if self.op.name_check:
4866 hostname = netutils.GetHostname(name=new_name)
4867 new_name = self.op.new_name = hostname.name
4868 if (self.op.ip_check and
4869 netutils.TcpPing(hostname.ip, constants.DEFAULT_NODED_PORT)):
4870 raise errors.OpPrereqError("IP %s of instance %s already in use" %
4871 (hostname.ip, new_name),
4872 errors.ECODE_NOTUNIQUE)
4874 instance_list = self.cfg.GetInstanceList()
4875 if new_name in instance_list:
4876 raise errors.OpPrereqError("Instance '%s' is already in the cluster" %
4877 new_name, errors.ECODE_EXISTS)
4879 def Exec(self, feedback_fn):
4880 """Reinstall the instance.
4883 inst = self.instance
4884 old_name = inst.name
4886 if inst.disk_template == constants.DT_FILE:
4887 old_file_storage_dir = os.path.dirname(inst.disks[0].logical_id[1])
4889 self.cfg.RenameInstance(inst.name, self.op.new_name)
4890 # Change the instance lock. This is definitely safe while we hold the BGL
4891 self.context.glm.remove(locking.LEVEL_INSTANCE, old_name)
4892 self.context.glm.add(locking.LEVEL_INSTANCE, self.op.new_name)
4894 # re-read the instance from the configuration after rename
4895 inst = self.cfg.GetInstanceInfo(self.op.new_name)
4897 if inst.disk_template == constants.DT_FILE:
4898 new_file_storage_dir = os.path.dirname(inst.disks[0].logical_id[1])
4899 result = self.rpc.call_file_storage_dir_rename(inst.primary_node,
4900 old_file_storage_dir,
4901 new_file_storage_dir)
4902 result.Raise("Could not rename on node %s directory '%s' to '%s'"
4903 " (but the instance has been renamed in Ganeti)" %
4904 (inst.primary_node, old_file_storage_dir,
4905 new_file_storage_dir))
4907 _StartInstanceDisks(self, inst, None)
4909 result = self.rpc.call_instance_run_rename(inst.primary_node, inst,
4910 old_name, self.op.debug_level)
4911 msg = result.fail_msg
4913 msg = ("Could not run OS rename script for instance %s on node %s"
4914 " (but the instance has been renamed in Ganeti): %s" %
4915 (inst.name, inst.primary_node, msg))
4916 self.proc.LogWarning(msg)
4918 _ShutdownInstanceDisks(self, inst)
4923 class LURemoveInstance(LogicalUnit):
4924 """Remove an instance.
4927 HPATH = "instance-remove"
4928 HTYPE = constants.HTYPE_INSTANCE
4931 ("ignore_failures", False, ht.TBool),
4936 def ExpandNames(self):
4937 self._ExpandAndLockInstance()
4938 self.needed_locks[locking.LEVEL_NODE] = []
4939 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
4941 def DeclareLocks(self, level):
4942 if level == locking.LEVEL_NODE:
4943 self._LockInstancesNodes()
4945 def BuildHooksEnv(self):
4948 This runs on master, primary and secondary nodes of the instance.
4951 env = _BuildInstanceHookEnvByObject(self, self.instance)
4952 env["SHUTDOWN_TIMEOUT"] = self.op.shutdown_timeout
4953 nl = [self.cfg.GetMasterNode()]
4954 nl_post = list(self.instance.all_nodes) + nl
4955 return env, nl, nl_post
4957 def CheckPrereq(self):
4958 """Check prerequisites.
4960 This checks that the instance is in the cluster.
4963 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
4964 assert self.instance is not None, \
4965 "Cannot retrieve locked instance %s" % self.op.instance_name
4967 def Exec(self, feedback_fn):
4968 """Remove the instance.
4971 instance = self.instance
4972 logging.info("Shutting down instance %s on node %s",
4973 instance.name, instance.primary_node)
4975 result = self.rpc.call_instance_shutdown(instance.primary_node, instance,
4976 self.op.shutdown_timeout)
4977 msg = result.fail_msg
4979 if self.op.ignore_failures:
4980 feedback_fn("Warning: can't shutdown instance: %s" % msg)
4982 raise errors.OpExecError("Could not shutdown instance %s on"
4984 (instance.name, instance.primary_node, msg))
4986 _RemoveInstance(self, feedback_fn, instance, self.op.ignore_failures)
4989 def _RemoveInstance(lu, feedback_fn, instance, ignore_failures):
4990 """Utility function to remove an instance.
4993 logging.info("Removing block devices for instance %s", instance.name)
4995 if not _RemoveDisks(lu, instance):
4996 if not ignore_failures:
4997 raise errors.OpExecError("Can't remove instance's disks")
4998 feedback_fn("Warning: can't remove instance's disks")
5000 logging.info("Removing instance %s out of cluster config", instance.name)
5002 lu.cfg.RemoveInstance(instance.name)
5004 assert not lu.remove_locks.get(locking.LEVEL_INSTANCE), \
5005 "Instance lock removal conflict"
5007 # Remove lock for the instance
5008 lu.remove_locks[locking.LEVEL_INSTANCE] = instance.name
5011 class LUQueryInstances(NoHooksLU):
5012 """Logical unit for querying instances.
5015 # pylint: disable-msg=W0142
5017 ("output_fields", ht.NoDefault, ht.TListOf(ht.TNonEmptyString)),
5018 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
5019 ("use_locking", False, ht.TBool),
5022 _SIMPLE_FIELDS = ["name", "os", "network_port", "hypervisor",
5023 "serial_no", "ctime", "mtime", "uuid"]
5024 _FIELDS_STATIC = utils.FieldSet(*["name", "os", "pnode", "snodes",
5026 "disk_template", "ip", "mac", "bridge",
5027 "nic_mode", "nic_link",
5028 "sda_size", "sdb_size", "vcpus", "tags",
5029 "network_port", "beparams",
5030 r"(disk)\.(size)/([0-9]+)",
5031 r"(disk)\.(sizes)", "disk_usage",
5032 r"(nic)\.(mac|ip|mode|link)/([0-9]+)",
5033 r"(nic)\.(bridge)/([0-9]+)",
5034 r"(nic)\.(macs|ips|modes|links|bridges)",
5035 r"(disk|nic)\.(count)",
5036 "hvparams", "custom_hvparams",
5037 "custom_beparams", "custom_nicparams",
5038 ] + _SIMPLE_FIELDS +
5040 for name in constants.HVS_PARAMETERS
5041 if name not in constants.HVC_GLOBALS] +
5043 for name in constants.BES_PARAMETERS])
5044 _FIELDS_DYNAMIC = utils.FieldSet("oper_state",
5050 def CheckArguments(self):
5051 _CheckOutputFields(static=self._FIELDS_STATIC,
5052 dynamic=self._FIELDS_DYNAMIC,
5053 selected=self.op.output_fields)
5055 def ExpandNames(self):
5056 self.needed_locks = {}
5057 self.share_locks[locking.LEVEL_INSTANCE] = 1
5058 self.share_locks[locking.LEVEL_NODE] = 1
5061 self.wanted = _GetWantedInstances(self, self.op.names)
5063 self.wanted = locking.ALL_SET
5065 self.do_node_query = self._FIELDS_STATIC.NonMatching(self.op.output_fields)
5066 self.do_locking = self.do_node_query and self.op.use_locking
5068 self.needed_locks[locking.LEVEL_INSTANCE] = self.wanted
5069 self.needed_locks[locking.LEVEL_NODE] = []
5070 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
5072 def DeclareLocks(self, level):
5073 if level == locking.LEVEL_NODE and self.do_locking:
5074 self._LockInstancesNodes()
5076 def Exec(self, feedback_fn):
5077 """Computes the list of nodes and their attributes.
5080 # pylint: disable-msg=R0912
5081 # way too many branches here
5082 all_info = self.cfg.GetAllInstancesInfo()
5083 if self.wanted == locking.ALL_SET:
5084 # caller didn't specify instance names, so ordering is not important
5086 instance_names = self.acquired_locks[locking.LEVEL_INSTANCE]
5088 instance_names = all_info.keys()
5089 instance_names = utils.NiceSort(instance_names)
5091 # caller did specify names, so we must keep the ordering
5093 tgt_set = self.acquired_locks[locking.LEVEL_INSTANCE]
5095 tgt_set = all_info.keys()
5096 missing = set(self.wanted).difference(tgt_set)
5098 raise errors.OpExecError("Some instances were removed before"
5099 " retrieving their data: %s" % missing)
5100 instance_names = self.wanted
5102 instance_list = [all_info[iname] for iname in instance_names]
5104 # begin data gathering
5106 nodes = frozenset([inst.primary_node for inst in instance_list])
5107 hv_list = list(set([inst.hypervisor for inst in instance_list]))
5111 if self.do_node_query:
5113 node_data = self.rpc.call_all_instances_info(nodes, hv_list)
5115 result = node_data[name]
5117 # offline nodes will be in both lists
5118 off_nodes.append(name)
5120 bad_nodes.append(name)
5123 live_data.update(result.payload)
5124 # else no instance is alive
5126 live_data = dict([(name, {}) for name in instance_names])
5128 # end data gathering
5133 cluster = self.cfg.GetClusterInfo()
5134 for instance in instance_list:
5136 i_hv = cluster.FillHV(instance, skip_globals=True)
5137 i_be = cluster.FillBE(instance)
5138 i_nicp = [cluster.SimpleFillNIC(nic.nicparams) for nic in instance.nics]
5139 for field in self.op.output_fields:
5140 st_match = self._FIELDS_STATIC.Matches(field)
5141 if field in self._SIMPLE_FIELDS:
5142 val = getattr(instance, field)
5143 elif field == "pnode":
5144 val = instance.primary_node
5145 elif field == "snodes":
5146 val = list(instance.secondary_nodes)
5147 elif field == "admin_state":
5148 val = instance.admin_up
5149 elif field == "oper_state":
5150 if instance.primary_node in bad_nodes:
5153 val = bool(live_data.get(instance.name))
5154 elif field == "status":
5155 if instance.primary_node in off_nodes:
5156 val = "ERROR_nodeoffline"
5157 elif instance.primary_node in bad_nodes:
5158 val = "ERROR_nodedown"
5160 running = bool(live_data.get(instance.name))
5162 if instance.admin_up:
5167 if instance.admin_up:
5171 elif field == "oper_ram":
5172 if instance.primary_node in bad_nodes:
5174 elif instance.name in live_data:
5175 val = live_data[instance.name].get("memory", "?")
5178 elif field == "oper_vcpus":
5179 if instance.primary_node in bad_nodes:
5181 elif instance.name in live_data:
5182 val = live_data[instance.name].get("vcpus", "?")
5185 elif field == "vcpus":
5186 val = i_be[constants.BE_VCPUS]
5187 elif field == "disk_template":
5188 val = instance.disk_template
5191 val = instance.nics[0].ip
5194 elif field == "nic_mode":
5196 val = i_nicp[0][constants.NIC_MODE]
5199 elif field == "nic_link":
5201 val = i_nicp[0][constants.NIC_LINK]
5204 elif field == "bridge":
5205 if (instance.nics and
5206 i_nicp[0][constants.NIC_MODE] == constants.NIC_MODE_BRIDGED):
5207 val = i_nicp[0][constants.NIC_LINK]
5210 elif field == "mac":
5212 val = instance.nics[0].mac
5215 elif field == "custom_nicparams":
5216 val = [nic.nicparams for nic in instance.nics]
5217 elif field == "sda_size" or field == "sdb_size":
5218 idx = ord(field[2]) - ord('a')
5220 val = instance.FindDisk(idx).size
5221 except errors.OpPrereqError:
5223 elif field == "disk_usage": # total disk usage per node
5224 disk_sizes = [{'size': disk.size} for disk in instance.disks]
5225 val = _ComputeDiskSize(instance.disk_template, disk_sizes)
5226 elif field == "tags":
5227 val = list(instance.GetTags())
5228 elif field == "custom_hvparams":
5229 val = instance.hvparams # not filled!
5230 elif field == "hvparams":
5232 elif (field.startswith(HVPREFIX) and
5233 field[len(HVPREFIX):] in constants.HVS_PARAMETERS and
5234 field[len(HVPREFIX):] not in constants.HVC_GLOBALS):
5235 val = i_hv.get(field[len(HVPREFIX):], None)
5236 elif field == "custom_beparams":
5237 val = instance.beparams
5238 elif field == "beparams":
5240 elif (field.startswith(BEPREFIX) and
5241 field[len(BEPREFIX):] in constants.BES_PARAMETERS):
5242 val = i_be.get(field[len(BEPREFIX):], None)
5243 elif st_match and st_match.groups():
5244 # matches a variable list
5245 st_groups = st_match.groups()
5246 if st_groups and st_groups[0] == "disk":
5247 if st_groups[1] == "count":
5248 val = len(instance.disks)
5249 elif st_groups[1] == "sizes":
5250 val = [disk.size for disk in instance.disks]
5251 elif st_groups[1] == "size":
5253 val = instance.FindDisk(st_groups[2]).size
5254 except errors.OpPrereqError:
5257 assert False, "Unhandled disk parameter"
5258 elif st_groups[0] == "nic":
5259 if st_groups[1] == "count":
5260 val = len(instance.nics)
5261 elif st_groups[1] == "macs":
5262 val = [nic.mac for nic in instance.nics]
5263 elif st_groups[1] == "ips":
5264 val = [nic.ip for nic in instance.nics]
5265 elif st_groups[1] == "modes":
5266 val = [nicp[constants.NIC_MODE] for nicp in i_nicp]
5267 elif st_groups[1] == "links":
5268 val = [nicp[constants.NIC_LINK] for nicp in i_nicp]
5269 elif st_groups[1] == "bridges":
5272 if nicp[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
5273 val.append(nicp[constants.NIC_LINK])
5278 nic_idx = int(st_groups[2])
5279 if nic_idx >= len(instance.nics):
5282 if st_groups[1] == "mac":
5283 val = instance.nics[nic_idx].mac
5284 elif st_groups[1] == "ip":
5285 val = instance.nics[nic_idx].ip
5286 elif st_groups[1] == "mode":
5287 val = i_nicp[nic_idx][constants.NIC_MODE]
5288 elif st_groups[1] == "link":
5289 val = i_nicp[nic_idx][constants.NIC_LINK]
5290 elif st_groups[1] == "bridge":
5291 nic_mode = i_nicp[nic_idx][constants.NIC_MODE]
5292 if nic_mode == constants.NIC_MODE_BRIDGED:
5293 val = i_nicp[nic_idx][constants.NIC_LINK]
5297 assert False, "Unhandled NIC parameter"
5299 assert False, ("Declared but unhandled variable parameter '%s'" %
5302 assert False, "Declared but unhandled parameter '%s'" % field
5309 class LUFailoverInstance(LogicalUnit):
5310 """Failover an instance.
5313 HPATH = "instance-failover"
5314 HTYPE = constants.HTYPE_INSTANCE
5317 ("ignore_consistency", False, ht.TBool),
5322 def ExpandNames(self):
5323 self._ExpandAndLockInstance()
5324 self.needed_locks[locking.LEVEL_NODE] = []
5325 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
5327 def DeclareLocks(self, level):
5328 if level == locking.LEVEL_NODE:
5329 self._LockInstancesNodes()
5331 def BuildHooksEnv(self):
5334 This runs on master, primary and secondary nodes of the instance.
5337 instance = self.instance
5338 source_node = instance.primary_node
5339 target_node = instance.secondary_nodes[0]
5341 "IGNORE_CONSISTENCY": self.op.ignore_consistency,
5342 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
5343 "OLD_PRIMARY": source_node,
5344 "OLD_SECONDARY": target_node,
5345 "NEW_PRIMARY": target_node,
5346 "NEW_SECONDARY": source_node,
5348 env.update(_BuildInstanceHookEnvByObject(self, instance))
5349 nl = [self.cfg.GetMasterNode()] + list(instance.secondary_nodes)
5351 nl_post.append(source_node)
5352 return env, nl, nl_post
5354 def CheckPrereq(self):
5355 """Check prerequisites.
5357 This checks that the instance is in the cluster.
5360 self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name)
5361 assert self.instance is not None, \
5362 "Cannot retrieve locked instance %s" % self.op.instance_name
5364 bep = self.cfg.GetClusterInfo().FillBE(instance)
5365 if instance.disk_template not in constants.DTS_NET_MIRROR:
5366 raise errors.OpPrereqError("Instance's disk layout is not"
5367 " network mirrored, cannot failover.",
5370 secondary_nodes = instance.secondary_nodes
5371 if not secondary_nodes:
5372 raise errors.ProgrammerError("no secondary node but using "
5373 "a mirrored disk template")
5375 target_node = secondary_nodes[0]
5376 _CheckNodeOnline(self, target_node)
5377 _CheckNodeNotDrained(self, target_node)
5378 if instance.admin_up:
5379 # check memory requirements on the secondary node
5380 _CheckNodeFreeMemory(self, target_node, "failing over instance %s" %
5381 instance.name, bep[constants.BE_MEMORY],
5382 instance.hypervisor)
5384 self.LogInfo("Not checking memory on the secondary node as"
5385 " instance will not be started")
5387 # check bridge existance
5388 _CheckInstanceBridgesExist(self, instance, node=target_node)
5390 def Exec(self, feedback_fn):
5391 """Failover an instance.
5393 The failover is done by shutting it down on its present node and
5394 starting it on the secondary.
5397 instance = self.instance
5398 primary_node = self.cfg.GetNodeInfo(instance.primary_node)
5400 source_node = instance.primary_node
5401 target_node = instance.secondary_nodes[0]
5403 if instance.admin_up:
5404 feedback_fn("* checking disk consistency between source and target")
5405 for dev in instance.disks:
5406 # for drbd, these are drbd over lvm
5407 if not _CheckDiskConsistency(self, dev, target_node, False):
5408 if not self.op.ignore_consistency:
5409 raise errors.OpExecError("Disk %s is degraded on target node,"
5410 " aborting failover." % dev.iv_name)
5412 feedback_fn("* not checking disk consistency as instance is not running")
5414 feedback_fn("* shutting down instance on source node")
5415 logging.info("Shutting down instance %s on node %s",
5416 instance.name, source_node)
5418 result = self.rpc.call_instance_shutdown(source_node, instance,
5419 self.op.shutdown_timeout)
5420 msg = result.fail_msg
5422 if self.op.ignore_consistency or primary_node.offline:
5423 self.proc.LogWarning("Could not shutdown instance %s on node %s."
5424 " Proceeding anyway. Please make sure node"
5425 " %s is down. Error details: %s",
5426 instance.name, source_node, source_node, msg)
5428 raise errors.OpExecError("Could not shutdown instance %s on"
5430 (instance.name, source_node, msg))
5432 feedback_fn("* deactivating the instance's disks on source node")
5433 if not _ShutdownInstanceDisks(self, instance, ignore_primary=True):
5434 raise errors.OpExecError("Can't shut down the instance's disks.")
5436 instance.primary_node = target_node
5437 # distribute new instance config to the other nodes
5438 self.cfg.Update(instance, feedback_fn)
5440 # Only start the instance if it's marked as up
5441 if instance.admin_up:
5442 feedback_fn("* activating the instance's disks on target node")
5443 logging.info("Starting instance %s on node %s",
5444 instance.name, target_node)
5446 disks_ok, _ = _AssembleInstanceDisks(self, instance,
5447 ignore_secondaries=True)
5449 _ShutdownInstanceDisks(self, instance)
5450 raise errors.OpExecError("Can't activate the instance's disks")
5452 feedback_fn("* starting the instance on the target node")
5453 result = self.rpc.call_instance_start(target_node, instance, None, None)
5454 msg = result.fail_msg
5456 _ShutdownInstanceDisks(self, instance)
5457 raise errors.OpExecError("Could not start instance %s on node %s: %s" %
5458 (instance.name, target_node, msg))
5461 class LUMigrateInstance(LogicalUnit):
5462 """Migrate an instance.
5464 This is migration without shutting down, compared to the failover,
5465 which is done with shutdown.
5468 HPATH = "instance-migrate"
5469 HTYPE = constants.HTYPE_INSTANCE
5474 ("cleanup", False, ht.TBool),
5479 def ExpandNames(self):
5480 self._ExpandAndLockInstance()
5482 self.needed_locks[locking.LEVEL_NODE] = []
5483 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
5485 self._migrater = TLMigrateInstance(self, self.op.instance_name,
5487 self.tasklets = [self._migrater]
5489 def DeclareLocks(self, level):
5490 if level == locking.LEVEL_NODE:
5491 self._LockInstancesNodes()
5493 def BuildHooksEnv(self):
5496 This runs on master, primary and secondary nodes of the instance.
5499 instance = self._migrater.instance
5500 source_node = instance.primary_node
5501 target_node = instance.secondary_nodes[0]
5502 env = _BuildInstanceHookEnvByObject(self, instance)
5503 env["MIGRATE_LIVE"] = self._migrater.live
5504 env["MIGRATE_CLEANUP"] = self.op.cleanup
5506 "OLD_PRIMARY": source_node,
5507 "OLD_SECONDARY": target_node,
5508 "NEW_PRIMARY": target_node,
5509 "NEW_SECONDARY": source_node,
5511 nl = [self.cfg.GetMasterNode()] + list(instance.secondary_nodes)
5513 nl_post.append(source_node)
5514 return env, nl, nl_post
5517 class LUMoveInstance(LogicalUnit):
5518 """Move an instance by data-copying.
5521 HPATH = "instance-move"
5522 HTYPE = constants.HTYPE_INSTANCE
5525 ("target_node", ht.NoDefault, ht.TNonEmptyString),
5530 def ExpandNames(self):
5531 self._ExpandAndLockInstance()
5532 target_node = _ExpandNodeName(self.cfg, self.op.target_node)
5533 self.op.target_node = target_node
5534 self.needed_locks[locking.LEVEL_NODE] = [target_node]
5535 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
5537 def DeclareLocks(self, level):
5538 if level == locking.LEVEL_NODE:
5539 self._LockInstancesNodes(primary_only=True)
5541 def BuildHooksEnv(self):
5544 This runs on master, primary and secondary nodes of the instance.
5548 "TARGET_NODE": self.op.target_node,
5549 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
5551 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
5552 nl = [self.cfg.GetMasterNode()] + [self.instance.primary_node,
5553 self.op.target_node]
5556 def CheckPrereq(self):
5557 """Check prerequisites.
5559 This checks that the instance is in the cluster.
5562 self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name)
5563 assert self.instance is not None, \
5564 "Cannot retrieve locked instance %s" % self.op.instance_name
5566 node = self.cfg.GetNodeInfo(self.op.target_node)
5567 assert node is not None, \
5568 "Cannot retrieve locked node %s" % self.op.target_node
5570 self.target_node = target_node = node.name
5572 if target_node == instance.primary_node:
5573 raise errors.OpPrereqError("Instance %s is already on the node %s" %
5574 (instance.name, target_node),
5577 bep = self.cfg.GetClusterInfo().FillBE(instance)
5579 for idx, dsk in enumerate(instance.disks):
5580 if dsk.dev_type not in (constants.LD_LV, constants.LD_FILE):
5581 raise errors.OpPrereqError("Instance disk %d has a complex layout,"
5582 " cannot copy" % idx, errors.ECODE_STATE)
5584 _CheckNodeOnline(self, target_node)
5585 _CheckNodeNotDrained(self, target_node)
5587 if instance.admin_up:
5588 # check memory requirements on the secondary node
5589 _CheckNodeFreeMemory(self, target_node, "failing over instance %s" %
5590 instance.name, bep[constants.BE_MEMORY],
5591 instance.hypervisor)
5593 self.LogInfo("Not checking memory on the secondary node as"
5594 " instance will not be started")
5596 # check bridge existance
5597 _CheckInstanceBridgesExist(self, instance, node=target_node)
5599 def Exec(self, feedback_fn):
5600 """Move an instance.
5602 The move is done by shutting it down on its present node, copying
5603 the data over (slow) and starting it on the new node.
5606 instance = self.instance
5608 source_node = instance.primary_node
5609 target_node = self.target_node
5611 self.LogInfo("Shutting down instance %s on source node %s",
5612 instance.name, source_node)
5614 result = self.rpc.call_instance_shutdown(source_node, instance,
5615 self.op.shutdown_timeout)
5616 msg = result.fail_msg
5618 if self.op.ignore_consistency:
5619 self.proc.LogWarning("Could not shutdown instance %s on node %s."
5620 " Proceeding anyway. Please make sure node"
5621 " %s is down. Error details: %s",
5622 instance.name, source_node, source_node, msg)
5624 raise errors.OpExecError("Could not shutdown instance %s on"
5626 (instance.name, source_node, msg))
5628 # create the target disks
5630 _CreateDisks(self, instance, target_node=target_node)
5631 except errors.OpExecError:
5632 self.LogWarning("Device creation failed, reverting...")
5634 _RemoveDisks(self, instance, target_node=target_node)
5636 self.cfg.ReleaseDRBDMinors(instance.name)
5639 cluster_name = self.cfg.GetClusterInfo().cluster_name
5642 # activate, get path, copy the data over
5643 for idx, disk in enumerate(instance.disks):
5644 self.LogInfo("Copying data for disk %d", idx)
5645 result = self.rpc.call_blockdev_assemble(target_node, disk,
5646 instance.name, True)
5648 self.LogWarning("Can't assemble newly created disk %d: %s",
5649 idx, result.fail_msg)
5650 errs.append(result.fail_msg)
5652 dev_path = result.payload
5653 result = self.rpc.call_blockdev_export(source_node, disk,
5654 target_node, dev_path,
5657 self.LogWarning("Can't copy data over for disk %d: %s",
5658 idx, result.fail_msg)
5659 errs.append(result.fail_msg)
5663 self.LogWarning("Some disks failed to copy, aborting")
5665 _RemoveDisks(self, instance, target_node=target_node)
5667 self.cfg.ReleaseDRBDMinors(instance.name)
5668 raise errors.OpExecError("Errors during disk copy: %s" %
5671 instance.primary_node = target_node
5672 self.cfg.Update(instance, feedback_fn)
5674 self.LogInfo("Removing the disks on the original node")
5675 _RemoveDisks(self, instance, target_node=source_node)
5677 # Only start the instance if it's marked as up
5678 if instance.admin_up:
5679 self.LogInfo("Starting instance %s on node %s",
5680 instance.name, target_node)
5682 disks_ok, _ = _AssembleInstanceDisks(self, instance,
5683 ignore_secondaries=True)
5685 _ShutdownInstanceDisks(self, instance)
5686 raise errors.OpExecError("Can't activate the instance's disks")
5688 result = self.rpc.call_instance_start(target_node, instance, None, None)
5689 msg = result.fail_msg
5691 _ShutdownInstanceDisks(self, instance)
5692 raise errors.OpExecError("Could not start instance %s on node %s: %s" %
5693 (instance.name, target_node, msg))
5696 class LUMigrateNode(LogicalUnit):
5697 """Migrate all instances from a node.
5700 HPATH = "node-migrate"
5701 HTYPE = constants.HTYPE_NODE
5709 def ExpandNames(self):
5710 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
5712 self.needed_locks = {
5713 locking.LEVEL_NODE: [self.op.node_name],
5716 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
5718 # Create tasklets for migrating instances for all instances on this node
5722 for inst in _GetNodePrimaryInstances(self.cfg, self.op.node_name):
5723 logging.debug("Migrating instance %s", inst.name)
5724 names.append(inst.name)
5726 tasklets.append(TLMigrateInstance(self, inst.name, False))
5728 self.tasklets = tasklets
5730 # Declare instance locks
5731 self.needed_locks[locking.LEVEL_INSTANCE] = names
5733 def DeclareLocks(self, level):
5734 if level == locking.LEVEL_NODE:
5735 self._LockInstancesNodes()
5737 def BuildHooksEnv(self):
5740 This runs on the master, the primary and all the secondaries.
5744 "NODE_NAME": self.op.node_name,
5747 nl = [self.cfg.GetMasterNode()]
5749 return (env, nl, nl)
5752 class TLMigrateInstance(Tasklet):
5753 """Tasklet class for instance migration.
5756 @ivar live: whether the migration will be done live or non-live;
5757 this variable is initalized only after CheckPrereq has run
5760 def __init__(self, lu, instance_name, cleanup):
5761 """Initializes this class.
5764 Tasklet.__init__(self, lu)
5767 self.instance_name = instance_name
5768 self.cleanup = cleanup
5769 self.live = False # will be overridden later
5771 def CheckPrereq(self):
5772 """Check prerequisites.
5774 This checks that the instance is in the cluster.
5777 instance_name = _ExpandInstanceName(self.lu.cfg, self.instance_name)
5778 instance = self.cfg.GetInstanceInfo(instance_name)
5779 assert instance is not None
5781 if instance.disk_template != constants.DT_DRBD8:
5782 raise errors.OpPrereqError("Instance's disk layout is not"
5783 " drbd8, cannot migrate.", errors.ECODE_STATE)
5785 secondary_nodes = instance.secondary_nodes
5786 if not secondary_nodes:
5787 raise errors.ConfigurationError("No secondary node but using"
5788 " drbd8 disk template")
5790 i_be = self.cfg.GetClusterInfo().FillBE(instance)
5792 target_node = secondary_nodes[0]
5793 # check memory requirements on the secondary node
5794 _CheckNodeFreeMemory(self.lu, target_node, "migrating instance %s" %
5795 instance.name, i_be[constants.BE_MEMORY],
5796 instance.hypervisor)
5798 # check bridge existance
5799 _CheckInstanceBridgesExist(self.lu, instance, node=target_node)
5801 if not self.cleanup:
5802 _CheckNodeNotDrained(self.lu, target_node)
5803 result = self.rpc.call_instance_migratable(instance.primary_node,
5805 result.Raise("Can't migrate, please use failover",
5806 prereq=True, ecode=errors.ECODE_STATE)
5808 self.instance = instance
5810 if self.lu.op.live is not None and self.lu.op.mode is not None:
5811 raise errors.OpPrereqError("Only one of the 'live' and 'mode'"
5812 " parameters are accepted",
5814 if self.lu.op.live is not None:
5816 self.lu.op.mode = constants.HT_MIGRATION_LIVE
5818 self.lu.op.mode = constants.HT_MIGRATION_NONLIVE
5819 # reset the 'live' parameter to None so that repeated
5820 # invocations of CheckPrereq do not raise an exception
5821 self.lu.op.live = None
5822 elif self.lu.op.mode is None:
5823 # read the default value from the hypervisor
5824 i_hv = self.cfg.GetClusterInfo().FillHV(instance, skip_globals=False)
5825 self.lu.op.mode = i_hv[constants.HV_MIGRATION_MODE]
5827 self.live = self.lu.op.mode == constants.HT_MIGRATION_LIVE
5829 def _WaitUntilSync(self):
5830 """Poll with custom rpc for disk sync.
5832 This uses our own step-based rpc call.
5835 self.feedback_fn("* wait until resync is done")
5839 result = self.rpc.call_drbd_wait_sync(self.all_nodes,
5841 self.instance.disks)
5843 for node, nres in result.items():
5844 nres.Raise("Cannot resync disks on node %s" % node)
5845 node_done, node_percent = nres.payload
5846 all_done = all_done and node_done
5847 if node_percent is not None:
5848 min_percent = min(min_percent, node_percent)
5850 if min_percent < 100:
5851 self.feedback_fn(" - progress: %.1f%%" % min_percent)
5854 def _EnsureSecondary(self, node):
5855 """Demote a node to secondary.
5858 self.feedback_fn("* switching node %s to secondary mode" % node)
5860 for dev in self.instance.disks:
5861 self.cfg.SetDiskID(dev, node)
5863 result = self.rpc.call_blockdev_close(node, self.instance.name,
5864 self.instance.disks)
5865 result.Raise("Cannot change disk to secondary on node %s" % node)
5867 def _GoStandalone(self):
5868 """Disconnect from the network.
5871 self.feedback_fn("* changing into standalone mode")
5872 result = self.rpc.call_drbd_disconnect_net(self.all_nodes, self.nodes_ip,
5873 self.instance.disks)
5874 for node, nres in result.items():
5875 nres.Raise("Cannot disconnect disks node %s" % node)
5877 def _GoReconnect(self, multimaster):
5878 """Reconnect to the network.
5884 msg = "single-master"
5885 self.feedback_fn("* changing disks into %s mode" % msg)
5886 result = self.rpc.call_drbd_attach_net(self.all_nodes, self.nodes_ip,
5887 self.instance.disks,
5888 self.instance.name, multimaster)
5889 for node, nres in result.items():
5890 nres.Raise("Cannot change disks config on node %s" % node)
5892 def _ExecCleanup(self):
5893 """Try to cleanup after a failed migration.
5895 The cleanup is done by:
5896 - check that the instance is running only on one node
5897 (and update the config if needed)
5898 - change disks on its secondary node to secondary
5899 - wait until disks are fully synchronized
5900 - disconnect from the network
5901 - change disks into single-master mode
5902 - wait again until disks are fully synchronized
5905 instance = self.instance
5906 target_node = self.target_node
5907 source_node = self.source_node
5909 # check running on only one node
5910 self.feedback_fn("* checking where the instance actually runs"
5911 " (if this hangs, the hypervisor might be in"
5913 ins_l = self.rpc.call_instance_list(self.all_nodes, [instance.hypervisor])
5914 for node, result in ins_l.items():
5915 result.Raise("Can't contact node %s" % node)
5917 runningon_source = instance.name in ins_l[source_node].payload
5918 runningon_target = instance.name in ins_l[target_node].payload
5920 if runningon_source and runningon_target:
5921 raise errors.OpExecError("Instance seems to be running on two nodes,"
5922 " or the hypervisor is confused. You will have"
5923 " to ensure manually that it runs only on one"
5924 " and restart this operation.")
5926 if not (runningon_source or runningon_target):
5927 raise errors.OpExecError("Instance does not seem to be running at all."
5928 " In this case, it's safer to repair by"
5929 " running 'gnt-instance stop' to ensure disk"
5930 " shutdown, and then restarting it.")
5932 if runningon_target:
5933 # the migration has actually succeeded, we need to update the config
5934 self.feedback_fn("* instance running on secondary node (%s),"
5935 " updating config" % target_node)
5936 instance.primary_node = target_node
5937 self.cfg.Update(instance, self.feedback_fn)
5938 demoted_node = source_node
5940 self.feedback_fn("* instance confirmed to be running on its"
5941 " primary node (%s)" % source_node)
5942 demoted_node = target_node
5944 self._EnsureSecondary(demoted_node)
5946 self._WaitUntilSync()
5947 except errors.OpExecError:
5948 # we ignore here errors, since if the device is standalone, it
5949 # won't be able to sync
5951 self._GoStandalone()
5952 self._GoReconnect(False)
5953 self._WaitUntilSync()
5955 self.feedback_fn("* done")
5957 def _RevertDiskStatus(self):
5958 """Try to revert the disk status after a failed migration.
5961 target_node = self.target_node
5963 self._EnsureSecondary(target_node)
5964 self._GoStandalone()
5965 self._GoReconnect(False)
5966 self._WaitUntilSync()
5967 except errors.OpExecError, err:
5968 self.lu.LogWarning("Migration failed and I can't reconnect the"
5969 " drives: error '%s'\n"
5970 "Please look and recover the instance status" %
5973 def _AbortMigration(self):
5974 """Call the hypervisor code to abort a started migration.
5977 instance = self.instance
5978 target_node = self.target_node
5979 migration_info = self.migration_info
5981 abort_result = self.rpc.call_finalize_migration(target_node,
5985 abort_msg = abort_result.fail_msg
5987 logging.error("Aborting migration failed on target node %s: %s",
5988 target_node, abort_msg)
5989 # Don't raise an exception here, as we stil have to try to revert the
5990 # disk status, even if this step failed.
5992 def _ExecMigration(self):
5993 """Migrate an instance.
5995 The migrate is done by:
5996 - change the disks into dual-master mode
5997 - wait until disks are fully synchronized again
5998 - migrate the instance
5999 - change disks on the new secondary node (the old primary) to secondary
6000 - wait until disks are fully synchronized
6001 - change disks into single-master mode
6004 instance = self.instance
6005 target_node = self.target_node
6006 source_node = self.source_node
6008 self.feedback_fn("* checking disk consistency between source and target")
6009 for dev in instance.disks:
6010 if not _CheckDiskConsistency(self.lu, dev, target_node, False):
6011 raise errors.OpExecError("Disk %s is degraded or not fully"
6012 " synchronized on target node,"
6013 " aborting migrate." % dev.iv_name)
6015 # First get the migration information from the remote node
6016 result = self.rpc.call_migration_info(source_node, instance)
6017 msg = result.fail_msg
6019 log_err = ("Failed fetching source migration information from %s: %s" %
6021 logging.error(log_err)
6022 raise errors.OpExecError(log_err)
6024 self.migration_info = migration_info = result.payload
6026 # Then switch the disks to master/master mode
6027 self._EnsureSecondary(target_node)
6028 self._GoStandalone()
6029 self._GoReconnect(True)
6030 self._WaitUntilSync()
6032 self.feedback_fn("* preparing %s to accept the instance" % target_node)
6033 result = self.rpc.call_accept_instance(target_node,
6036 self.nodes_ip[target_node])
6038 msg = result.fail_msg
6040 logging.error("Instance pre-migration failed, trying to revert"
6041 " disk status: %s", msg)
6042 self.feedback_fn("Pre-migration failed, aborting")
6043 self._AbortMigration()
6044 self._RevertDiskStatus()
6045 raise errors.OpExecError("Could not pre-migrate instance %s: %s" %
6046 (instance.name, msg))
6048 self.feedback_fn("* migrating instance to %s" % target_node)
6050 result = self.rpc.call_instance_migrate(source_node, instance,
6051 self.nodes_ip[target_node],
6053 msg = result.fail_msg
6055 logging.error("Instance migration failed, trying to revert"
6056 " disk status: %s", msg)
6057 self.feedback_fn("Migration failed, aborting")
6058 self._AbortMigration()
6059 self._RevertDiskStatus()
6060 raise errors.OpExecError("Could not migrate instance %s: %s" %
6061 (instance.name, msg))
6064 instance.primary_node = target_node
6065 # distribute new instance config to the other nodes
6066 self.cfg.Update(instance, self.feedback_fn)
6068 result = self.rpc.call_finalize_migration(target_node,
6072 msg = result.fail_msg
6074 logging.error("Instance migration succeeded, but finalization failed:"
6076 raise errors.OpExecError("Could not finalize instance migration: %s" %
6079 self._EnsureSecondary(source_node)
6080 self._WaitUntilSync()
6081 self._GoStandalone()
6082 self._GoReconnect(False)
6083 self._WaitUntilSync()
6085 self.feedback_fn("* done")
6087 def Exec(self, feedback_fn):
6088 """Perform the migration.
6091 feedback_fn("Migrating instance %s" % self.instance.name)
6093 self.feedback_fn = feedback_fn
6095 self.source_node = self.instance.primary_node
6096 self.target_node = self.instance.secondary_nodes[0]
6097 self.all_nodes = [self.source_node, self.target_node]
6099 self.source_node: self.cfg.GetNodeInfo(self.source_node).secondary_ip,
6100 self.target_node: self.cfg.GetNodeInfo(self.target_node).secondary_ip,
6104 return self._ExecCleanup()
6106 return self._ExecMigration()
6109 def _CreateBlockDev(lu, node, instance, device, force_create,
6111 """Create a tree of block devices on a given node.
6113 If this device type has to be created on secondaries, create it and
6116 If not, just recurse to children keeping the same 'force' value.
6118 @param lu: the lu on whose behalf we execute
6119 @param node: the node on which to create the device
6120 @type instance: L{objects.Instance}
6121 @param instance: the instance which owns the device
6122 @type device: L{objects.Disk}
6123 @param device: the device to create
6124 @type force_create: boolean
6125 @param force_create: whether to force creation of this device; this
6126 will be change to True whenever we find a device which has
6127 CreateOnSecondary() attribute
6128 @param info: the extra 'metadata' we should attach to the device
6129 (this will be represented as a LVM tag)
6130 @type force_open: boolean
6131 @param force_open: this parameter will be passes to the
6132 L{backend.BlockdevCreate} function where it specifies
6133 whether we run on primary or not, and it affects both
6134 the child assembly and the device own Open() execution
6137 if device.CreateOnSecondary():
6141 for child in device.children:
6142 _CreateBlockDev(lu, node, instance, child, force_create,
6145 if not force_create:
6148 _CreateSingleBlockDev(lu, node, instance, device, info, force_open)
6151 def _CreateSingleBlockDev(lu, node, instance, device, info, force_open):
6152 """Create a single block device on a given node.
6154 This will not recurse over children of the device, so they must be
6157 @param lu: the lu on whose behalf we execute
6158 @param node: the node on which to create the device
6159 @type instance: L{objects.Instance}
6160 @param instance: the instance which owns the device
6161 @type device: L{objects.Disk}
6162 @param device: the device to create
6163 @param info: the extra 'metadata' we should attach to the device
6164 (this will be represented as a LVM tag)
6165 @type force_open: boolean
6166 @param force_open: this parameter will be passes to the
6167 L{backend.BlockdevCreate} function where it specifies
6168 whether we run on primary or not, and it affects both
6169 the child assembly and the device own Open() execution
6172 lu.cfg.SetDiskID(device, node)
6173 result = lu.rpc.call_blockdev_create(node, device, device.size,
6174 instance.name, force_open, info)
6175 result.Raise("Can't create block device %s on"
6176 " node %s for instance %s" % (device, node, instance.name))
6177 if device.physical_id is None:
6178 device.physical_id = result.payload
6181 def _GenerateUniqueNames(lu, exts):
6182 """Generate a suitable LV name.
6184 This will generate a logical volume name for the given instance.
6189 new_id = lu.cfg.GenerateUniqueID(lu.proc.GetECId())
6190 results.append("%s%s" % (new_id, val))
6194 def _GenerateDRBD8Branch(lu, primary, secondary, size, names, iv_name,
6196 """Generate a drbd8 device complete with its children.
6199 port = lu.cfg.AllocatePort()
6200 vgname = lu.cfg.GetVGName()
6201 shared_secret = lu.cfg.GenerateDRBDSecret(lu.proc.GetECId())
6202 dev_data = objects.Disk(dev_type=constants.LD_LV, size=size,
6203 logical_id=(vgname, names[0]))
6204 dev_meta = objects.Disk(dev_type=constants.LD_LV, size=128,
6205 logical_id=(vgname, names[1]))
6206 drbd_dev = objects.Disk(dev_type=constants.LD_DRBD8, size=size,
6207 logical_id=(primary, secondary, port,
6210 children=[dev_data, dev_meta],
6215 def _GenerateDiskTemplate(lu, template_name,
6216 instance_name, primary_node,
6217 secondary_nodes, disk_info,
6218 file_storage_dir, file_driver,
6220 """Generate the entire disk layout for a given template type.
6223 #TODO: compute space requirements
6225 vgname = lu.cfg.GetVGName()
6226 disk_count = len(disk_info)
6228 if template_name == constants.DT_DISKLESS:
6230 elif template_name == constants.DT_PLAIN:
6231 if len(secondary_nodes) != 0:
6232 raise errors.ProgrammerError("Wrong template configuration")
6234 names = _GenerateUniqueNames(lu, [".disk%d" % (base_index + i)
6235 for i in range(disk_count)])
6236 for idx, disk in enumerate(disk_info):
6237 disk_index = idx + base_index
6238 disk_dev = objects.Disk(dev_type=constants.LD_LV, size=disk["size"],
6239 logical_id=(vgname, names[idx]),
6240 iv_name="disk/%d" % disk_index,
6242 disks.append(disk_dev)
6243 elif template_name == constants.DT_DRBD8:
6244 if len(secondary_nodes) != 1:
6245 raise errors.ProgrammerError("Wrong template configuration")
6246 remote_node = secondary_nodes[0]
6247 minors = lu.cfg.AllocateDRBDMinor(
6248 [primary_node, remote_node] * len(disk_info), instance_name)
6251 for lv_prefix in _GenerateUniqueNames(lu, [".disk%d" % (base_index + i)
6252 for i in range(disk_count)]):
6253 names.append(lv_prefix + "_data")
6254 names.append(lv_prefix + "_meta")
6255 for idx, disk in enumerate(disk_info):
6256 disk_index = idx + base_index
6257 disk_dev = _GenerateDRBD8Branch(lu, primary_node, remote_node,
6258 disk["size"], names[idx*2:idx*2+2],
6259 "disk/%d" % disk_index,
6260 minors[idx*2], minors[idx*2+1])
6261 disk_dev.mode = disk["mode"]
6262 disks.append(disk_dev)
6263 elif template_name == constants.DT_FILE:
6264 if len(secondary_nodes) != 0:
6265 raise errors.ProgrammerError("Wrong template configuration")
6267 _RequireFileStorage()
6269 for idx, disk in enumerate(disk_info):
6270 disk_index = idx + base_index
6271 disk_dev = objects.Disk(dev_type=constants.LD_FILE, size=disk["size"],
6272 iv_name="disk/%d" % disk_index,
6273 logical_id=(file_driver,
6274 "%s/disk%d" % (file_storage_dir,
6277 disks.append(disk_dev)
6279 raise errors.ProgrammerError("Invalid disk template '%s'" % template_name)
6283 def _GetInstanceInfoText(instance):
6284 """Compute that text that should be added to the disk's metadata.
6287 return "originstname+%s" % instance.name
6290 def _CreateDisks(lu, instance, to_skip=None, target_node=None):
6291 """Create all disks for an instance.
6293 This abstracts away some work from AddInstance.
6295 @type lu: L{LogicalUnit}
6296 @param lu: the logical unit on whose behalf we execute
6297 @type instance: L{objects.Instance}
6298 @param instance: the instance whose disks we should create
6300 @param to_skip: list of indices to skip
6301 @type target_node: string
6302 @param target_node: if passed, overrides the target node for creation
6304 @return: the success of the creation
6307 info = _GetInstanceInfoText(instance)
6308 if target_node is None:
6309 pnode = instance.primary_node
6310 all_nodes = instance.all_nodes
6315 if instance.disk_template == constants.DT_FILE:
6316 file_storage_dir = os.path.dirname(instance.disks[0].logical_id[1])
6317 result = lu.rpc.call_file_storage_dir_create(pnode, file_storage_dir)
6319 result.Raise("Failed to create directory '%s' on"
6320 " node %s" % (file_storage_dir, pnode))
6322 # Note: this needs to be kept in sync with adding of disks in
6323 # LUSetInstanceParams
6324 for idx, device in enumerate(instance.disks):
6325 if to_skip and idx in to_skip:
6327 logging.info("Creating volume %s for instance %s",
6328 device.iv_name, instance.name)
6330 for node in all_nodes:
6331 f_create = node == pnode
6332 _CreateBlockDev(lu, node, instance, device, f_create, info, f_create)
6335 def _RemoveDisks(lu, instance, target_node=None):
6336 """Remove all disks for an instance.
6338 This abstracts away some work from `AddInstance()` and
6339 `RemoveInstance()`. Note that in case some of the devices couldn't
6340 be removed, the removal will continue with the other ones (compare
6341 with `_CreateDisks()`).
6343 @type lu: L{LogicalUnit}
6344 @param lu: the logical unit on whose behalf we execute
6345 @type instance: L{objects.Instance}
6346 @param instance: the instance whose disks we should remove
6347 @type target_node: string
6348 @param target_node: used to override the node on which to remove the disks
6350 @return: the success of the removal
6353 logging.info("Removing block devices for instance %s", instance.name)
6356 for device in instance.disks:
6358 edata = [(target_node, device)]
6360 edata = device.ComputeNodeTree(instance.primary_node)
6361 for node, disk in edata:
6362 lu.cfg.SetDiskID(disk, node)
6363 msg = lu.rpc.call_blockdev_remove(node, disk).fail_msg
6365 lu.LogWarning("Could not remove block device %s on node %s,"
6366 " continuing anyway: %s", device.iv_name, node, msg)
6369 if instance.disk_template == constants.DT_FILE:
6370 file_storage_dir = os.path.dirname(instance.disks[0].logical_id[1])
6374 tgt = instance.primary_node
6375 result = lu.rpc.call_file_storage_dir_remove(tgt, file_storage_dir)
6377 lu.LogWarning("Could not remove directory '%s' on node %s: %s",
6378 file_storage_dir, instance.primary_node, result.fail_msg)
6384 def _ComputeDiskSize(disk_template, disks):
6385 """Compute disk size requirements in the volume group
6388 # Required free disk space as a function of disk and swap space
6390 constants.DT_DISKLESS: None,
6391 constants.DT_PLAIN: sum(d["size"] for d in disks),
6392 # 128 MB are added for drbd metadata for each disk
6393 constants.DT_DRBD8: sum(d["size"] + 128 for d in disks),
6394 constants.DT_FILE: None,
6397 if disk_template not in req_size_dict:
6398 raise errors.ProgrammerError("Disk template '%s' size requirement"
6399 " is unknown" % disk_template)
6401 return req_size_dict[disk_template]
6404 def _CheckHVParams(lu, nodenames, hvname, hvparams):
6405 """Hypervisor parameter validation.
6407 This function abstract the hypervisor parameter validation to be
6408 used in both instance create and instance modify.
6410 @type lu: L{LogicalUnit}
6411 @param lu: the logical unit for which we check
6412 @type nodenames: list
6413 @param nodenames: the list of nodes on which we should check
6414 @type hvname: string
6415 @param hvname: the name of the hypervisor we should use
6416 @type hvparams: dict
6417 @param hvparams: the parameters which we need to check
6418 @raise errors.OpPrereqError: if the parameters are not valid
6421 hvinfo = lu.rpc.call_hypervisor_validate_params(nodenames,
6424 for node in nodenames:
6428 info.Raise("Hypervisor parameter validation failed on node %s" % node)
6431 def _CheckOSParams(lu, required, nodenames, osname, osparams):
6432 """OS parameters validation.
6434 @type lu: L{LogicalUnit}
6435 @param lu: the logical unit for which we check
6436 @type required: boolean
6437 @param required: whether the validation should fail if the OS is not
6439 @type nodenames: list
6440 @param nodenames: the list of nodes on which we should check
6441 @type osname: string
6442 @param osname: the name of the hypervisor we should use
6443 @type osparams: dict
6444 @param osparams: the parameters which we need to check
6445 @raise errors.OpPrereqError: if the parameters are not valid
6448 result = lu.rpc.call_os_validate(required, nodenames, osname,
6449 [constants.OS_VALIDATE_PARAMETERS],
6451 for node, nres in result.items():
6452 # we don't check for offline cases since this should be run only
6453 # against the master node and/or an instance's nodes
6454 nres.Raise("OS Parameters validation failed on node %s" % node)
6455 if not nres.payload:
6456 lu.LogInfo("OS %s not found on node %s, validation skipped",
6460 class LUCreateInstance(LogicalUnit):
6461 """Create an instance.
6464 HPATH = "instance-add"
6465 HTYPE = constants.HTYPE_INSTANCE
6468 ("mode", ht.NoDefault, ht.TElemOf(constants.INSTANCE_CREATE_MODES)),
6469 ("start", True, ht.TBool),
6470 ("wait_for_sync", True, ht.TBool),
6471 ("ip_check", True, ht.TBool),
6472 ("name_check", True, ht.TBool),
6473 ("disks", ht.NoDefault, ht.TListOf(ht.TDict)),
6474 ("nics", ht.NoDefault, ht.TListOf(ht.TDict)),
6475 ("hvparams", ht.EmptyDict, ht.TDict),
6476 ("beparams", ht.EmptyDict, ht.TDict),
6477 ("osparams", ht.EmptyDict, ht.TDict),
6478 ("no_install", None, ht.TMaybeBool),
6479 ("os_type", None, ht.TMaybeString),
6480 ("force_variant", False, ht.TBool),
6481 ("source_handshake", None, ht.TOr(ht.TList, ht.TNone)),
6482 ("source_x509_ca", None, ht.TMaybeString),
6483 ("source_instance_name", None, ht.TMaybeString),
6484 ("src_node", None, ht.TMaybeString),
6485 ("src_path", None, ht.TMaybeString),
6486 ("pnode", None, ht.TMaybeString),
6487 ("snode", None, ht.TMaybeString),
6488 ("iallocator", None, ht.TMaybeString),
6489 ("hypervisor", None, ht.TMaybeString),
6490 ("disk_template", ht.NoDefault, _CheckDiskTemplate),
6491 ("identify_defaults", False, ht.TBool),
6492 ("file_driver", None, ht.TOr(ht.TNone, ht.TElemOf(constants.FILE_DRIVER))),
6493 ("file_storage_dir", None, ht.TMaybeString),
6497 def CheckArguments(self):
6501 # do not require name_check to ease forward/backward compatibility
6503 if self.op.no_install and self.op.start:
6504 self.LogInfo("No-installation mode selected, disabling startup")
6505 self.op.start = False
6506 # validate/normalize the instance name
6507 self.op.instance_name = \
6508 netutils.Hostname.GetNormalizedName(self.op.instance_name)
6510 if self.op.ip_check and not self.op.name_check:
6511 # TODO: make the ip check more flexible and not depend on the name check
6512 raise errors.OpPrereqError("Cannot do ip check without a name check",
6515 # check nics' parameter names
6516 for nic in self.op.nics:
6517 utils.ForceDictType(nic, constants.INIC_PARAMS_TYPES)
6519 # check disks. parameter names and consistent adopt/no-adopt strategy
6520 has_adopt = has_no_adopt = False
6521 for disk in self.op.disks:
6522 utils.ForceDictType(disk, constants.IDISK_PARAMS_TYPES)
6527 if has_adopt and has_no_adopt:
6528 raise errors.OpPrereqError("Either all disks are adopted or none is",
6531 if self.op.disk_template not in constants.DTS_MAY_ADOPT:
6532 raise errors.OpPrereqError("Disk adoption is not supported for the"
6533 " '%s' disk template" %
6534 self.op.disk_template,
6536 if self.op.iallocator is not None:
6537 raise errors.OpPrereqError("Disk adoption not allowed with an"
6538 " iallocator script", errors.ECODE_INVAL)
6539 if self.op.mode == constants.INSTANCE_IMPORT:
6540 raise errors.OpPrereqError("Disk adoption not allowed for"
6541 " instance import", errors.ECODE_INVAL)
6543 self.adopt_disks = has_adopt
6545 # instance name verification
6546 if self.op.name_check:
6547 self.hostname1 = netutils.GetHostname(name=self.op.instance_name)
6548 self.op.instance_name = self.hostname1.name
6549 # used in CheckPrereq for ip ping check
6550 self.check_ip = self.hostname1.ip
6551 elif self.op.mode == constants.INSTANCE_REMOTE_IMPORT:
6552 raise errors.OpPrereqError("Remote imports require names to be checked" %
6555 self.check_ip = None
6557 # file storage checks
6558 if (self.op.file_driver and
6559 not self.op.file_driver in constants.FILE_DRIVER):
6560 raise errors.OpPrereqError("Invalid file driver name '%s'" %
6561 self.op.file_driver, errors.ECODE_INVAL)
6563 if self.op.file_storage_dir and os.path.isabs(self.op.file_storage_dir):
6564 raise errors.OpPrereqError("File storage directory path not absolute",
6567 ### Node/iallocator related checks
6568 _CheckIAllocatorOrNode(self, "iallocator", "pnode")
6570 if self.op.pnode is not None:
6571 if self.op.disk_template in constants.DTS_NET_MIRROR:
6572 if self.op.snode is None:
6573 raise errors.OpPrereqError("The networked disk templates need"
6574 " a mirror node", errors.ECODE_INVAL)
6576 self.LogWarning("Secondary node will be ignored on non-mirrored disk"
6578 self.op.snode = None
6580 self._cds = _GetClusterDomainSecret()
6582 if self.op.mode == constants.INSTANCE_IMPORT:
6583 # On import force_variant must be True, because if we forced it at
6584 # initial install, our only chance when importing it back is that it
6586 self.op.force_variant = True
6588 if self.op.no_install:
6589 self.LogInfo("No-installation mode has no effect during import")
6591 elif self.op.mode == constants.INSTANCE_CREATE:
6592 if self.op.os_type is None:
6593 raise errors.OpPrereqError("No guest OS specified",
6595 if self.op.os_type in self.cfg.GetClusterInfo().blacklisted_os:
6596 raise errors.OpPrereqError("Guest OS '%s' is not allowed for"
6597 " installation" % self.op.os_type,
6599 if self.op.disk_template is None:
6600 raise errors.OpPrereqError("No disk template specified",
6603 elif self.op.mode == constants.INSTANCE_REMOTE_IMPORT:
6604 # Check handshake to ensure both clusters have the same domain secret
6605 src_handshake = self.op.source_handshake
6606 if not src_handshake:
6607 raise errors.OpPrereqError("Missing source handshake",
6610 errmsg = masterd.instance.CheckRemoteExportHandshake(self._cds,
6613 raise errors.OpPrereqError("Invalid handshake: %s" % errmsg,
6616 # Load and check source CA
6617 self.source_x509_ca_pem = self.op.source_x509_ca
6618 if not self.source_x509_ca_pem:
6619 raise errors.OpPrereqError("Missing source X509 CA",
6623 (cert, _) = utils.LoadSignedX509Certificate(self.source_x509_ca_pem,
6625 except OpenSSL.crypto.Error, err:
6626 raise errors.OpPrereqError("Unable to load source X509 CA (%s)" %
6627 (err, ), errors.ECODE_INVAL)
6629 (errcode, msg) = utils.VerifyX509Certificate(cert, None, None)
6630 if errcode is not None:
6631 raise errors.OpPrereqError("Invalid source X509 CA (%s)" % (msg, ),
6634 self.source_x509_ca = cert
6636 src_instance_name = self.op.source_instance_name
6637 if not src_instance_name:
6638 raise errors.OpPrereqError("Missing source instance name",
6641 self.source_instance_name = \
6642 netutils.GetHostname(name=src_instance_name).name
6645 raise errors.OpPrereqError("Invalid instance creation mode %r" %
6646 self.op.mode, errors.ECODE_INVAL)
6648 def ExpandNames(self):
6649 """ExpandNames for CreateInstance.
6651 Figure out the right locks for instance creation.
6654 self.needed_locks = {}
6656 instance_name = self.op.instance_name
6657 # this is just a preventive check, but someone might still add this
6658 # instance in the meantime, and creation will fail at lock-add time
6659 if instance_name in self.cfg.GetInstanceList():
6660 raise errors.OpPrereqError("Instance '%s' is already in the cluster" %
6661 instance_name, errors.ECODE_EXISTS)
6663 self.add_locks[locking.LEVEL_INSTANCE] = instance_name
6665 if self.op.iallocator:
6666 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
6668 self.op.pnode = _ExpandNodeName(self.cfg, self.op.pnode)
6669 nodelist = [self.op.pnode]
6670 if self.op.snode is not None:
6671 self.op.snode = _ExpandNodeName(self.cfg, self.op.snode)
6672 nodelist.append(self.op.snode)
6673 self.needed_locks[locking.LEVEL_NODE] = nodelist
6675 # in case of import lock the source node too
6676 if self.op.mode == constants.INSTANCE_IMPORT:
6677 src_node = self.op.src_node
6678 src_path = self.op.src_path
6680 if src_path is None:
6681 self.op.src_path = src_path = self.op.instance_name
6683 if src_node is None:
6684 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
6685 self.op.src_node = None
6686 if os.path.isabs(src_path):
6687 raise errors.OpPrereqError("Importing an instance from an absolute"
6688 " path requires a source node option.",
6691 self.op.src_node = src_node = _ExpandNodeName(self.cfg, src_node)
6692 if self.needed_locks[locking.LEVEL_NODE] is not locking.ALL_SET:
6693 self.needed_locks[locking.LEVEL_NODE].append(src_node)
6694 if not os.path.isabs(src_path):
6695 self.op.src_path = src_path = \
6696 utils.PathJoin(constants.EXPORT_DIR, src_path)
6698 def _RunAllocator(self):
6699 """Run the allocator based on input opcode.
6702 nics = [n.ToDict() for n in self.nics]
6703 ial = IAllocator(self.cfg, self.rpc,
6704 mode=constants.IALLOCATOR_MODE_ALLOC,
6705 name=self.op.instance_name,
6706 disk_template=self.op.disk_template,
6709 vcpus=self.be_full[constants.BE_VCPUS],
6710 mem_size=self.be_full[constants.BE_MEMORY],
6713 hypervisor=self.op.hypervisor,
6716 ial.Run(self.op.iallocator)
6719 raise errors.OpPrereqError("Can't compute nodes using"
6720 " iallocator '%s': %s" %
6721 (self.op.iallocator, ial.info),
6723 if len(ial.result) != ial.required_nodes:
6724 raise errors.OpPrereqError("iallocator '%s' returned invalid number"
6725 " of nodes (%s), required %s" %
6726 (self.op.iallocator, len(ial.result),
6727 ial.required_nodes), errors.ECODE_FAULT)
6728 self.op.pnode = ial.result[0]
6729 self.LogInfo("Selected nodes for instance %s via iallocator %s: %s",
6730 self.op.instance_name, self.op.iallocator,
6731 utils.CommaJoin(ial.result))
6732 if ial.required_nodes == 2:
6733 self.op.snode = ial.result[1]
6735 def BuildHooksEnv(self):
6738 This runs on master, primary and secondary nodes of the instance.
6742 "ADD_MODE": self.op.mode,
6744 if self.op.mode == constants.INSTANCE_IMPORT:
6745 env["SRC_NODE"] = self.op.src_node
6746 env["SRC_PATH"] = self.op.src_path
6747 env["SRC_IMAGES"] = self.src_images
6749 env.update(_BuildInstanceHookEnv(
6750 name=self.op.instance_name,
6751 primary_node=self.op.pnode,
6752 secondary_nodes=self.secondaries,
6753 status=self.op.start,
6754 os_type=self.op.os_type,
6755 memory=self.be_full[constants.BE_MEMORY],
6756 vcpus=self.be_full[constants.BE_VCPUS],
6757 nics=_NICListToTuple(self, self.nics),
6758 disk_template=self.op.disk_template,
6759 disks=[(d["size"], d["mode"]) for d in self.disks],
6762 hypervisor_name=self.op.hypervisor,
6765 nl = ([self.cfg.GetMasterNode(), self.op.pnode] +
6769 def _ReadExportInfo(self):
6770 """Reads the export information from disk.
6772 It will override the opcode source node and path with the actual
6773 information, if these two were not specified before.
6775 @return: the export information
6778 assert self.op.mode == constants.INSTANCE_IMPORT
6780 src_node = self.op.src_node
6781 src_path = self.op.src_path
6783 if src_node is None:
6784 locked_nodes = self.acquired_locks[locking.LEVEL_NODE]
6785 exp_list = self.rpc.call_export_list(locked_nodes)
6787 for node in exp_list:
6788 if exp_list[node].fail_msg:
6790 if src_path in exp_list[node].payload:
6792 self.op.src_node = src_node = node
6793 self.op.src_path = src_path = utils.PathJoin(constants.EXPORT_DIR,
6797 raise errors.OpPrereqError("No export found for relative path %s" %
6798 src_path, errors.ECODE_INVAL)
6800 _CheckNodeOnline(self, src_node)
6801 result = self.rpc.call_export_info(src_node, src_path)
6802 result.Raise("No export or invalid export found in dir %s" % src_path)
6804 export_info = objects.SerializableConfigParser.Loads(str(result.payload))
6805 if not export_info.has_section(constants.INISECT_EXP):
6806 raise errors.ProgrammerError("Corrupted export config",
6807 errors.ECODE_ENVIRON)
6809 ei_version = export_info.get(constants.INISECT_EXP, "version")
6810 if (int(ei_version) != constants.EXPORT_VERSION):
6811 raise errors.OpPrereqError("Wrong export version %s (wanted %d)" %
6812 (ei_version, constants.EXPORT_VERSION),
6813 errors.ECODE_ENVIRON)
6816 def _ReadExportParams(self, einfo):
6817 """Use export parameters as defaults.
6819 In case the opcode doesn't specify (as in override) some instance
6820 parameters, then try to use them from the export information, if
6824 self.op.os_type = einfo.get(constants.INISECT_EXP, "os")
6826 if self.op.disk_template is None:
6827 if einfo.has_option(constants.INISECT_INS, "disk_template"):
6828 self.op.disk_template = einfo.get(constants.INISECT_INS,
6831 raise errors.OpPrereqError("No disk template specified and the export"
6832 " is missing the disk_template information",
6835 if not self.op.disks:
6836 if einfo.has_option(constants.INISECT_INS, "disk_count"):
6838 # TODO: import the disk iv_name too
6839 for idx in range(einfo.getint(constants.INISECT_INS, "disk_count")):
6840 disk_sz = einfo.getint(constants.INISECT_INS, "disk%d_size" % idx)
6841 disks.append({"size": disk_sz})
6842 self.op.disks = disks
6844 raise errors.OpPrereqError("No disk info specified and the export"
6845 " is missing the disk information",
6848 if (not self.op.nics and
6849 einfo.has_option(constants.INISECT_INS, "nic_count")):
6851 for idx in range(einfo.getint(constants.INISECT_INS, "nic_count")):
6853 for name in list(constants.NICS_PARAMETERS) + ["ip", "mac"]:
6854 v = einfo.get(constants.INISECT_INS, "nic%d_%s" % (idx, name))
6859 if (self.op.hypervisor is None and
6860 einfo.has_option(constants.INISECT_INS, "hypervisor")):
6861 self.op.hypervisor = einfo.get(constants.INISECT_INS, "hypervisor")
6862 if einfo.has_section(constants.INISECT_HYP):
6863 # use the export parameters but do not override the ones
6864 # specified by the user
6865 for name, value in einfo.items(constants.INISECT_HYP):
6866 if name not in self.op.hvparams:
6867 self.op.hvparams[name] = value
6869 if einfo.has_section(constants.INISECT_BEP):
6870 # use the parameters, without overriding
6871 for name, value in einfo.items(constants.INISECT_BEP):
6872 if name not in self.op.beparams:
6873 self.op.beparams[name] = value
6875 # try to read the parameters old style, from the main section
6876 for name in constants.BES_PARAMETERS:
6877 if (name not in self.op.beparams and
6878 einfo.has_option(constants.INISECT_INS, name)):
6879 self.op.beparams[name] = einfo.get(constants.INISECT_INS, name)
6881 if einfo.has_section(constants.INISECT_OSP):
6882 # use the parameters, without overriding
6883 for name, value in einfo.items(constants.INISECT_OSP):
6884 if name not in self.op.osparams:
6885 self.op.osparams[name] = value
6887 def _RevertToDefaults(self, cluster):
6888 """Revert the instance parameters to the default values.
6892 hv_defs = cluster.SimpleFillHV(self.op.hypervisor, self.op.os_type, {})
6893 for name in self.op.hvparams.keys():
6894 if name in hv_defs and hv_defs[name] == self.op.hvparams[name]:
6895 del self.op.hvparams[name]
6897 be_defs = cluster.SimpleFillBE({})
6898 for name in self.op.beparams.keys():
6899 if name in be_defs and be_defs[name] == self.op.beparams[name]:
6900 del self.op.beparams[name]
6902 nic_defs = cluster.SimpleFillNIC({})
6903 for nic in self.op.nics:
6904 for name in constants.NICS_PARAMETERS:
6905 if name in nic and name in nic_defs and nic[name] == nic_defs[name]:
6908 os_defs = cluster.SimpleFillOS(self.op.os_type, {})
6909 for name in self.op.osparams.keys():
6910 if name in os_defs and os_defs[name] == self.op.osparams[name]:
6911 del self.op.osparams[name]
6913 def CheckPrereq(self):
6914 """Check prerequisites.
6917 if self.op.mode == constants.INSTANCE_IMPORT:
6918 export_info = self._ReadExportInfo()
6919 self._ReadExportParams(export_info)
6921 _CheckDiskTemplate(self.op.disk_template)
6923 if (not self.cfg.GetVGName() and
6924 self.op.disk_template not in constants.DTS_NOT_LVM):
6925 raise errors.OpPrereqError("Cluster does not support lvm-based"
6926 " instances", errors.ECODE_STATE)
6928 if self.op.hypervisor is None:
6929 self.op.hypervisor = self.cfg.GetHypervisorType()
6931 cluster = self.cfg.GetClusterInfo()
6932 enabled_hvs = cluster.enabled_hypervisors
6933 if self.op.hypervisor not in enabled_hvs:
6934 raise errors.OpPrereqError("Selected hypervisor (%s) not enabled in the"
6935 " cluster (%s)" % (self.op.hypervisor,
6936 ",".join(enabled_hvs)),
6939 # check hypervisor parameter syntax (locally)
6940 utils.ForceDictType(self.op.hvparams, constants.HVS_PARAMETER_TYPES)
6941 filled_hvp = cluster.SimpleFillHV(self.op.hypervisor, self.op.os_type,
6943 hv_type = hypervisor.GetHypervisor(self.op.hypervisor)
6944 hv_type.CheckParameterSyntax(filled_hvp)
6945 self.hv_full = filled_hvp
6946 # check that we don't specify global parameters on an instance
6947 _CheckGlobalHvParams(self.op.hvparams)
6949 # fill and remember the beparams dict
6950 utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
6951 self.be_full = cluster.SimpleFillBE(self.op.beparams)
6953 # build os parameters
6954 self.os_full = cluster.SimpleFillOS(self.op.os_type, self.op.osparams)
6956 # now that hvp/bep are in final format, let's reset to defaults,
6958 if self.op.identify_defaults:
6959 self._RevertToDefaults(cluster)
6963 for idx, nic in enumerate(self.op.nics):
6964 nic_mode_req = nic.get("mode", None)
6965 nic_mode = nic_mode_req
6966 if nic_mode is None:
6967 nic_mode = cluster.nicparams[constants.PP_DEFAULT][constants.NIC_MODE]
6969 # in routed mode, for the first nic, the default ip is 'auto'
6970 if nic_mode == constants.NIC_MODE_ROUTED and idx == 0:
6971 default_ip_mode = constants.VALUE_AUTO
6973 default_ip_mode = constants.VALUE_NONE
6975 # ip validity checks
6976 ip = nic.get("ip", default_ip_mode)
6977 if ip is None or ip.lower() == constants.VALUE_NONE:
6979 elif ip.lower() == constants.VALUE_AUTO:
6980 if not self.op.name_check:
6981 raise errors.OpPrereqError("IP address set to auto but name checks"
6982 " have been skipped",
6984 nic_ip = self.hostname1.ip
6986 if not netutils.IPAddress.IsValid(ip):
6987 raise errors.OpPrereqError("Invalid IP address '%s'" % ip,
6991 # TODO: check the ip address for uniqueness
6992 if nic_mode == constants.NIC_MODE_ROUTED and not nic_ip:
6993 raise errors.OpPrereqError("Routed nic mode requires an ip address",
6996 # MAC address verification
6997 mac = nic.get("mac", constants.VALUE_AUTO)
6998 if mac not in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
6999 mac = utils.NormalizeAndValidateMac(mac)
7002 self.cfg.ReserveMAC(mac, self.proc.GetECId())
7003 except errors.ReservationError:
7004 raise errors.OpPrereqError("MAC address %s already in use"
7005 " in cluster" % mac,
7006 errors.ECODE_NOTUNIQUE)
7008 # bridge verification
7009 bridge = nic.get("bridge", None)
7010 link = nic.get("link", None)
7012 raise errors.OpPrereqError("Cannot pass 'bridge' and 'link'"
7013 " at the same time", errors.ECODE_INVAL)
7014 elif bridge and nic_mode == constants.NIC_MODE_ROUTED:
7015 raise errors.OpPrereqError("Cannot pass 'bridge' on a routed nic",
7022 nicparams[constants.NIC_MODE] = nic_mode_req
7024 nicparams[constants.NIC_LINK] = link
7026 check_params = cluster.SimpleFillNIC(nicparams)
7027 objects.NIC.CheckParameterSyntax(check_params)
7028 self.nics.append(objects.NIC(mac=mac, ip=nic_ip, nicparams=nicparams))
7030 # disk checks/pre-build
7032 for disk in self.op.disks:
7033 mode = disk.get("mode", constants.DISK_RDWR)
7034 if mode not in constants.DISK_ACCESS_SET:
7035 raise errors.OpPrereqError("Invalid disk access mode '%s'" %
7036 mode, errors.ECODE_INVAL)
7037 size = disk.get("size", None)
7039 raise errors.OpPrereqError("Missing disk size", errors.ECODE_INVAL)
7042 except (TypeError, ValueError):
7043 raise errors.OpPrereqError("Invalid disk size '%s'" % size,
7045 new_disk = {"size": size, "mode": mode}
7047 new_disk["adopt"] = disk["adopt"]
7048 self.disks.append(new_disk)
7050 if self.op.mode == constants.INSTANCE_IMPORT:
7052 # Check that the new instance doesn't have less disks than the export
7053 instance_disks = len(self.disks)
7054 export_disks = export_info.getint(constants.INISECT_INS, 'disk_count')
7055 if instance_disks < export_disks:
7056 raise errors.OpPrereqError("Not enough disks to import."
7057 " (instance: %d, export: %d)" %
7058 (instance_disks, export_disks),
7062 for idx in range(export_disks):
7063 option = 'disk%d_dump' % idx
7064 if export_info.has_option(constants.INISECT_INS, option):
7065 # FIXME: are the old os-es, disk sizes, etc. useful?
7066 export_name = export_info.get(constants.INISECT_INS, option)
7067 image = utils.PathJoin(self.op.src_path, export_name)
7068 disk_images.append(image)
7070 disk_images.append(False)
7072 self.src_images = disk_images
7074 old_name = export_info.get(constants.INISECT_INS, 'name')
7076 exp_nic_count = export_info.getint(constants.INISECT_INS, 'nic_count')
7077 except (TypeError, ValueError), err:
7078 raise errors.OpPrereqError("Invalid export file, nic_count is not"
7079 " an integer: %s" % str(err),
7081 if self.op.instance_name == old_name:
7082 for idx, nic in enumerate(self.nics):
7083 if nic.mac == constants.VALUE_AUTO and exp_nic_count >= idx:
7084 nic_mac_ini = 'nic%d_mac' % idx
7085 nic.mac = export_info.get(constants.INISECT_INS, nic_mac_ini)
7087 # ENDIF: self.op.mode == constants.INSTANCE_IMPORT
7089 # ip ping checks (we use the same ip that was resolved in ExpandNames)
7090 if self.op.ip_check:
7091 if netutils.TcpPing(self.check_ip, constants.DEFAULT_NODED_PORT):
7092 raise errors.OpPrereqError("IP %s of instance %s already in use" %
7093 (self.check_ip, self.op.instance_name),
7094 errors.ECODE_NOTUNIQUE)
7096 #### mac address generation
7097 # By generating here the mac address both the allocator and the hooks get
7098 # the real final mac address rather than the 'auto' or 'generate' value.
7099 # There is a race condition between the generation and the instance object
7100 # creation, which means that we know the mac is valid now, but we're not
7101 # sure it will be when we actually add the instance. If things go bad
7102 # adding the instance will abort because of a duplicate mac, and the
7103 # creation job will fail.
7104 for nic in self.nics:
7105 if nic.mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
7106 nic.mac = self.cfg.GenerateMAC(self.proc.GetECId())
7110 if self.op.iallocator is not None:
7111 self._RunAllocator()
7113 #### node related checks
7115 # check primary node
7116 self.pnode = pnode = self.cfg.GetNodeInfo(self.op.pnode)
7117 assert self.pnode is not None, \
7118 "Cannot retrieve locked node %s" % self.op.pnode
7120 raise errors.OpPrereqError("Cannot use offline primary node '%s'" %
7121 pnode.name, errors.ECODE_STATE)
7123 raise errors.OpPrereqError("Cannot use drained primary node '%s'" %
7124 pnode.name, errors.ECODE_STATE)
7126 self.secondaries = []
7128 # mirror node verification
7129 if self.op.disk_template in constants.DTS_NET_MIRROR:
7130 if self.op.snode == pnode.name:
7131 raise errors.OpPrereqError("The secondary node cannot be the"
7132 " primary node.", errors.ECODE_INVAL)
7133 _CheckNodeOnline(self, self.op.snode)
7134 _CheckNodeNotDrained(self, self.op.snode)
7135 self.secondaries.append(self.op.snode)
7137 nodenames = [pnode.name] + self.secondaries
7139 req_size = _ComputeDiskSize(self.op.disk_template,
7142 # Check lv size requirements, if not adopting
7143 if req_size is not None and not self.adopt_disks:
7144 _CheckNodesFreeDisk(self, nodenames, req_size)
7146 if self.adopt_disks: # instead, we must check the adoption data
7147 all_lvs = set([i["adopt"] for i in self.disks])
7148 if len(all_lvs) != len(self.disks):
7149 raise errors.OpPrereqError("Duplicate volume names given for adoption",
7151 for lv_name in all_lvs:
7153 self.cfg.ReserveLV(lv_name, self.proc.GetECId())
7154 except errors.ReservationError:
7155 raise errors.OpPrereqError("LV named %s used by another instance" %
7156 lv_name, errors.ECODE_NOTUNIQUE)
7158 node_lvs = self.rpc.call_lv_list([pnode.name],
7159 self.cfg.GetVGName())[pnode.name]
7160 node_lvs.Raise("Cannot get LV information from node %s" % pnode.name)
7161 node_lvs = node_lvs.payload
7162 delta = all_lvs.difference(node_lvs.keys())
7164 raise errors.OpPrereqError("Missing logical volume(s): %s" %
7165 utils.CommaJoin(delta),
7167 online_lvs = [lv for lv in all_lvs if node_lvs[lv][2]]
7169 raise errors.OpPrereqError("Online logical volumes found, cannot"
7170 " adopt: %s" % utils.CommaJoin(online_lvs),
7172 # update the size of disk based on what is found
7173 for dsk in self.disks:
7174 dsk["size"] = int(float(node_lvs[dsk["adopt"]][0]))
7176 _CheckHVParams(self, nodenames, self.op.hypervisor, self.op.hvparams)
7178 _CheckNodeHasOS(self, pnode.name, self.op.os_type, self.op.force_variant)
7179 # check OS parameters (remotely)
7180 _CheckOSParams(self, True, nodenames, self.op.os_type, self.os_full)
7182 _CheckNicsBridgesExist(self, self.nics, self.pnode.name)
7184 # memory check on primary node
7186 _CheckNodeFreeMemory(self, self.pnode.name,
7187 "creating instance %s" % self.op.instance_name,
7188 self.be_full[constants.BE_MEMORY],
7191 self.dry_run_result = list(nodenames)
7193 def Exec(self, feedback_fn):
7194 """Create and add the instance to the cluster.
7197 instance = self.op.instance_name
7198 pnode_name = self.pnode.name
7200 ht_kind = self.op.hypervisor
7201 if ht_kind in constants.HTS_REQ_PORT:
7202 network_port = self.cfg.AllocatePort()
7206 if constants.ENABLE_FILE_STORAGE:
7207 # this is needed because os.path.join does not accept None arguments
7208 if self.op.file_storage_dir is None:
7209 string_file_storage_dir = ""
7211 string_file_storage_dir = self.op.file_storage_dir
7213 # build the full file storage dir path
7214 file_storage_dir = utils.PathJoin(self.cfg.GetFileStorageDir(),
7215 string_file_storage_dir, instance)
7217 file_storage_dir = ""
7219 disks = _GenerateDiskTemplate(self,
7220 self.op.disk_template,
7221 instance, pnode_name,
7225 self.op.file_driver,
7228 iobj = objects.Instance(name=instance, os=self.op.os_type,
7229 primary_node=pnode_name,
7230 nics=self.nics, disks=disks,
7231 disk_template=self.op.disk_template,
7233 network_port=network_port,
7234 beparams=self.op.beparams,
7235 hvparams=self.op.hvparams,
7236 hypervisor=self.op.hypervisor,
7237 osparams=self.op.osparams,
7240 if self.adopt_disks:
7241 # rename LVs to the newly-generated names; we need to construct
7242 # 'fake' LV disks with the old data, plus the new unique_id
7243 tmp_disks = [objects.Disk.FromDict(v.ToDict()) for v in disks]
7245 for t_dsk, a_dsk in zip (tmp_disks, self.disks):
7246 rename_to.append(t_dsk.logical_id)
7247 t_dsk.logical_id = (t_dsk.logical_id[0], a_dsk["adopt"])
7248 self.cfg.SetDiskID(t_dsk, pnode_name)
7249 result = self.rpc.call_blockdev_rename(pnode_name,
7250 zip(tmp_disks, rename_to))
7251 result.Raise("Failed to rename adoped LVs")
7253 feedback_fn("* creating instance disks...")
7255 _CreateDisks(self, iobj)
7256 except errors.OpExecError:
7257 self.LogWarning("Device creation failed, reverting...")
7259 _RemoveDisks(self, iobj)
7261 self.cfg.ReleaseDRBDMinors(instance)
7264 feedback_fn("adding instance %s to cluster config" % instance)
7266 self.cfg.AddInstance(iobj, self.proc.GetECId())
7268 # Declare that we don't want to remove the instance lock anymore, as we've
7269 # added the instance to the config
7270 del self.remove_locks[locking.LEVEL_INSTANCE]
7271 # Unlock all the nodes
7272 if self.op.mode == constants.INSTANCE_IMPORT:
7273 nodes_keep = [self.op.src_node]
7274 nodes_release = [node for node in self.acquired_locks[locking.LEVEL_NODE]
7275 if node != self.op.src_node]
7276 self.context.glm.release(locking.LEVEL_NODE, nodes_release)
7277 self.acquired_locks[locking.LEVEL_NODE] = nodes_keep
7279 self.context.glm.release(locking.LEVEL_NODE)
7280 del self.acquired_locks[locking.LEVEL_NODE]
7282 if self.op.wait_for_sync:
7283 disk_abort = not _WaitForSync(self, iobj)
7284 elif iobj.disk_template in constants.DTS_NET_MIRROR:
7285 # make sure the disks are not degraded (still sync-ing is ok)
7287 feedback_fn("* checking mirrors status")
7288 disk_abort = not _WaitForSync(self, iobj, oneshot=True)
7293 _RemoveDisks(self, iobj)
7294 self.cfg.RemoveInstance(iobj.name)
7295 # Make sure the instance lock gets removed
7296 self.remove_locks[locking.LEVEL_INSTANCE] = iobj.name
7297 raise errors.OpExecError("There are some degraded disks for"
7300 if iobj.disk_template != constants.DT_DISKLESS and not self.adopt_disks:
7301 if self.op.mode == constants.INSTANCE_CREATE:
7302 if not self.op.no_install:
7303 feedback_fn("* running the instance OS create scripts...")
7304 # FIXME: pass debug option from opcode to backend
7305 result = self.rpc.call_instance_os_add(pnode_name, iobj, False,
7306 self.op.debug_level)
7307 result.Raise("Could not add os for instance %s"
7308 " on node %s" % (instance, pnode_name))
7310 elif self.op.mode == constants.INSTANCE_IMPORT:
7311 feedback_fn("* running the instance OS import scripts...")
7315 for idx, image in enumerate(self.src_images):
7319 # FIXME: pass debug option from opcode to backend
7320 dt = masterd.instance.DiskTransfer("disk/%s" % idx,
7321 constants.IEIO_FILE, (image, ),
7322 constants.IEIO_SCRIPT,
7323 (iobj.disks[idx], idx),
7325 transfers.append(dt)
7328 masterd.instance.TransferInstanceData(self, feedback_fn,
7329 self.op.src_node, pnode_name,
7330 self.pnode.secondary_ip,
7332 if not compat.all(import_result):
7333 self.LogWarning("Some disks for instance %s on node %s were not"
7334 " imported successfully" % (instance, pnode_name))
7336 elif self.op.mode == constants.INSTANCE_REMOTE_IMPORT:
7337 feedback_fn("* preparing remote import...")
7338 connect_timeout = constants.RIE_CONNECT_TIMEOUT
7339 timeouts = masterd.instance.ImportExportTimeouts(connect_timeout)
7341 disk_results = masterd.instance.RemoteImport(self, feedback_fn, iobj,
7342 self.source_x509_ca,
7343 self._cds, timeouts)
7344 if not compat.all(disk_results):
7345 # TODO: Should the instance still be started, even if some disks
7346 # failed to import (valid for local imports, too)?
7347 self.LogWarning("Some disks for instance %s on node %s were not"
7348 " imported successfully" % (instance, pnode_name))
7350 # Run rename script on newly imported instance
7351 assert iobj.name == instance
7352 feedback_fn("Running rename script for %s" % instance)
7353 result = self.rpc.call_instance_run_rename(pnode_name, iobj,
7354 self.source_instance_name,
7355 self.op.debug_level)
7357 self.LogWarning("Failed to run rename script for %s on node"
7358 " %s: %s" % (instance, pnode_name, result.fail_msg))
7361 # also checked in the prereq part
7362 raise errors.ProgrammerError("Unknown OS initialization mode '%s'"
7366 iobj.admin_up = True
7367 self.cfg.Update(iobj, feedback_fn)
7368 logging.info("Starting instance %s on node %s", instance, pnode_name)
7369 feedback_fn("* starting instance...")
7370 result = self.rpc.call_instance_start(pnode_name, iobj, None, None)
7371 result.Raise("Could not start instance")
7373 return list(iobj.all_nodes)
7376 class LUConnectConsole(NoHooksLU):
7377 """Connect to an instance's console.
7379 This is somewhat special in that it returns the command line that
7380 you need to run on the master node in order to connect to the
7389 def ExpandNames(self):
7390 self._ExpandAndLockInstance()
7392 def CheckPrereq(self):
7393 """Check prerequisites.
7395 This checks that the instance is in the cluster.
7398 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
7399 assert self.instance is not None, \
7400 "Cannot retrieve locked instance %s" % self.op.instance_name
7401 _CheckNodeOnline(self, self.instance.primary_node)
7403 def Exec(self, feedback_fn):
7404 """Connect to the console of an instance
7407 instance = self.instance
7408 node = instance.primary_node
7410 node_insts = self.rpc.call_instance_list([node],
7411 [instance.hypervisor])[node]
7412 node_insts.Raise("Can't get node information from %s" % node)
7414 if instance.name not in node_insts.payload:
7415 if instance.admin_up:
7416 state = "ERROR_down"
7418 state = "ADMIN_down"
7419 raise errors.OpExecError("Instance %s is not running (state %s)" %
7420 (instance.name, state))
7422 logging.debug("Connecting to console of %s on %s", instance.name, node)
7424 hyper = hypervisor.GetHypervisor(instance.hypervisor)
7425 cluster = self.cfg.GetClusterInfo()
7426 # beparams and hvparams are passed separately, to avoid editing the
7427 # instance and then saving the defaults in the instance itself.
7428 hvparams = cluster.FillHV(instance)
7429 beparams = cluster.FillBE(instance)
7430 console_cmd = hyper.GetShellCommandForConsole(instance, hvparams, beparams)
7433 return self.ssh.BuildCmd(node, "root", console_cmd, batch=True, tty=True)
7436 class LUReplaceDisks(LogicalUnit):
7437 """Replace the disks of an instance.
7440 HPATH = "mirrors-replace"
7441 HTYPE = constants.HTYPE_INSTANCE
7444 ("mode", ht.NoDefault, ht.TElemOf(constants.REPLACE_MODES)),
7445 ("disks", ht.EmptyList, ht.TListOf(ht.TPositiveInt)),
7446 ("remote_node", None, ht.TMaybeString),
7447 ("iallocator", None, ht.TMaybeString),
7448 ("early_release", False, ht.TBool),
7452 def CheckArguments(self):
7453 TLReplaceDisks.CheckArguments(self.op.mode, self.op.remote_node,
7456 def ExpandNames(self):
7457 self._ExpandAndLockInstance()
7459 if self.op.iallocator is not None:
7460 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
7462 elif self.op.remote_node is not None:
7463 remote_node = _ExpandNodeName(self.cfg, self.op.remote_node)
7464 self.op.remote_node = remote_node
7466 # Warning: do not remove the locking of the new secondary here
7467 # unless DRBD8.AddChildren is changed to work in parallel;
7468 # currently it doesn't since parallel invocations of
7469 # FindUnusedMinor will conflict
7470 self.needed_locks[locking.LEVEL_NODE] = [remote_node]
7471 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
7474 self.needed_locks[locking.LEVEL_NODE] = []
7475 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
7477 self.replacer = TLReplaceDisks(self, self.op.instance_name, self.op.mode,
7478 self.op.iallocator, self.op.remote_node,
7479 self.op.disks, False, self.op.early_release)
7481 self.tasklets = [self.replacer]
7483 def DeclareLocks(self, level):
7484 # If we're not already locking all nodes in the set we have to declare the
7485 # instance's primary/secondary nodes.
7486 if (level == locking.LEVEL_NODE and
7487 self.needed_locks[locking.LEVEL_NODE] is not locking.ALL_SET):
7488 self._LockInstancesNodes()
7490 def BuildHooksEnv(self):
7493 This runs on the master, the primary and all the secondaries.
7496 instance = self.replacer.instance
7498 "MODE": self.op.mode,
7499 "NEW_SECONDARY": self.op.remote_node,
7500 "OLD_SECONDARY": instance.secondary_nodes[0],
7502 env.update(_BuildInstanceHookEnvByObject(self, instance))
7504 self.cfg.GetMasterNode(),
7505 instance.primary_node,
7507 if self.op.remote_node is not None:
7508 nl.append(self.op.remote_node)
7512 class TLReplaceDisks(Tasklet):
7513 """Replaces disks for an instance.
7515 Note: Locking is not within the scope of this class.
7518 def __init__(self, lu, instance_name, mode, iallocator_name, remote_node,
7519 disks, delay_iallocator, early_release):
7520 """Initializes this class.
7523 Tasklet.__init__(self, lu)
7526 self.instance_name = instance_name
7528 self.iallocator_name = iallocator_name
7529 self.remote_node = remote_node
7531 self.delay_iallocator = delay_iallocator
7532 self.early_release = early_release
7535 self.instance = None
7536 self.new_node = None
7537 self.target_node = None
7538 self.other_node = None
7539 self.remote_node_info = None
7540 self.node_secondary_ip = None
7543 def CheckArguments(mode, remote_node, iallocator):
7544 """Helper function for users of this class.
7547 # check for valid parameter combination
7548 if mode == constants.REPLACE_DISK_CHG:
7549 if remote_node is None and iallocator is None:
7550 raise errors.OpPrereqError("When changing the secondary either an"
7551 " iallocator script must be used or the"
7552 " new node given", errors.ECODE_INVAL)
7554 if remote_node is not None and iallocator is not None:
7555 raise errors.OpPrereqError("Give either the iallocator or the new"
7556 " secondary, not both", errors.ECODE_INVAL)
7558 elif remote_node is not None or iallocator is not None:
7559 # Not replacing the secondary
7560 raise errors.OpPrereqError("The iallocator and new node options can"
7561 " only be used when changing the"
7562 " secondary node", errors.ECODE_INVAL)
7565 def _RunAllocator(lu, iallocator_name, instance_name, relocate_from):
7566 """Compute a new secondary node using an IAllocator.
7569 ial = IAllocator(lu.cfg, lu.rpc,
7570 mode=constants.IALLOCATOR_MODE_RELOC,
7572 relocate_from=relocate_from)
7574 ial.Run(iallocator_name)
7577 raise errors.OpPrereqError("Can't compute nodes using iallocator '%s':"
7578 " %s" % (iallocator_name, ial.info),
7581 if len(ial.result) != ial.required_nodes:
7582 raise errors.OpPrereqError("iallocator '%s' returned invalid number"
7583 " of nodes (%s), required %s" %
7585 len(ial.result), ial.required_nodes),
7588 remote_node_name = ial.result[0]
7590 lu.LogInfo("Selected new secondary for instance '%s': %s",
7591 instance_name, remote_node_name)
7593 return remote_node_name
7595 def _FindFaultyDisks(self, node_name):
7596 return _FindFaultyInstanceDisks(self.cfg, self.rpc, self.instance,
7599 def CheckPrereq(self):
7600 """Check prerequisites.
7602 This checks that the instance is in the cluster.
7605 self.instance = instance = self.cfg.GetInstanceInfo(self.instance_name)
7606 assert instance is not None, \
7607 "Cannot retrieve locked instance %s" % self.instance_name
7609 if instance.disk_template != constants.DT_DRBD8:
7610 raise errors.OpPrereqError("Can only run replace disks for DRBD8-based"
7611 " instances", errors.ECODE_INVAL)
7613 if len(instance.secondary_nodes) != 1:
7614 raise errors.OpPrereqError("The instance has a strange layout,"
7615 " expected one secondary but found %d" %
7616 len(instance.secondary_nodes),
7619 if not self.delay_iallocator:
7620 self._CheckPrereq2()
7622 def _CheckPrereq2(self):
7623 """Check prerequisites, second part.
7625 This function should always be part of CheckPrereq. It was separated and is
7626 now called from Exec because during node evacuation iallocator was only
7627 called with an unmodified cluster model, not taking planned changes into
7631 instance = self.instance
7632 secondary_node = instance.secondary_nodes[0]
7634 if self.iallocator_name is None:
7635 remote_node = self.remote_node
7637 remote_node = self._RunAllocator(self.lu, self.iallocator_name,
7638 instance.name, instance.secondary_nodes)
7640 if remote_node is not None:
7641 self.remote_node_info = self.cfg.GetNodeInfo(remote_node)
7642 assert self.remote_node_info is not None, \
7643 "Cannot retrieve locked node %s" % remote_node
7645 self.remote_node_info = None
7647 if remote_node == self.instance.primary_node:
7648 raise errors.OpPrereqError("The specified node is the primary node of"
7649 " the instance.", errors.ECODE_INVAL)
7651 if remote_node == secondary_node:
7652 raise errors.OpPrereqError("The specified node is already the"
7653 " secondary node of the instance.",
7656 if self.disks and self.mode in (constants.REPLACE_DISK_AUTO,
7657 constants.REPLACE_DISK_CHG):
7658 raise errors.OpPrereqError("Cannot specify disks to be replaced",
7661 if self.mode == constants.REPLACE_DISK_AUTO:
7662 faulty_primary = self._FindFaultyDisks(instance.primary_node)
7663 faulty_secondary = self._FindFaultyDisks(secondary_node)
7665 if faulty_primary and faulty_secondary:
7666 raise errors.OpPrereqError("Instance %s has faulty disks on more than"
7667 " one node and can not be repaired"
7668 " automatically" % self.instance_name,
7672 self.disks = faulty_primary
7673 self.target_node = instance.primary_node
7674 self.other_node = secondary_node
7675 check_nodes = [self.target_node, self.other_node]
7676 elif faulty_secondary:
7677 self.disks = faulty_secondary
7678 self.target_node = secondary_node
7679 self.other_node = instance.primary_node
7680 check_nodes = [self.target_node, self.other_node]
7686 # Non-automatic modes
7687 if self.mode == constants.REPLACE_DISK_PRI:
7688 self.target_node = instance.primary_node
7689 self.other_node = secondary_node
7690 check_nodes = [self.target_node, self.other_node]
7692 elif self.mode == constants.REPLACE_DISK_SEC:
7693 self.target_node = secondary_node
7694 self.other_node = instance.primary_node
7695 check_nodes = [self.target_node, self.other_node]
7697 elif self.mode == constants.REPLACE_DISK_CHG:
7698 self.new_node = remote_node
7699 self.other_node = instance.primary_node
7700 self.target_node = secondary_node
7701 check_nodes = [self.new_node, self.other_node]
7703 _CheckNodeNotDrained(self.lu, remote_node)
7705 old_node_info = self.cfg.GetNodeInfo(secondary_node)
7706 assert old_node_info is not None
7707 if old_node_info.offline and not self.early_release:
7708 # doesn't make sense to delay the release
7709 self.early_release = True
7710 self.lu.LogInfo("Old secondary %s is offline, automatically enabling"
7711 " early-release mode", secondary_node)
7714 raise errors.ProgrammerError("Unhandled disk replace mode (%s)" %
7717 # If not specified all disks should be replaced
7719 self.disks = range(len(self.instance.disks))
7721 for node in check_nodes:
7722 _CheckNodeOnline(self.lu, node)
7724 # Check whether disks are valid
7725 for disk_idx in self.disks:
7726 instance.FindDisk(disk_idx)
7728 # Get secondary node IP addresses
7731 for node_name in [self.target_node, self.other_node, self.new_node]:
7732 if node_name is not None:
7733 node_2nd_ip[node_name] = self.cfg.GetNodeInfo(node_name).secondary_ip
7735 self.node_secondary_ip = node_2nd_ip
7737 def Exec(self, feedback_fn):
7738 """Execute disk replacement.
7740 This dispatches the disk replacement to the appropriate handler.
7743 if self.delay_iallocator:
7744 self._CheckPrereq2()
7747 feedback_fn("No disks need replacement")
7750 feedback_fn("Replacing disk(s) %s for %s" %
7751 (utils.CommaJoin(self.disks), self.instance.name))
7753 activate_disks = (not self.instance.admin_up)
7755 # Activate the instance disks if we're replacing them on a down instance
7757 _StartInstanceDisks(self.lu, self.instance, True)
7760 # Should we replace the secondary node?
7761 if self.new_node is not None:
7762 fn = self._ExecDrbd8Secondary
7764 fn = self._ExecDrbd8DiskOnly
7766 return fn(feedback_fn)
7769 # Deactivate the instance disks if we're replacing them on a
7772 _SafeShutdownInstanceDisks(self.lu, self.instance)
7774 def _CheckVolumeGroup(self, nodes):
7775 self.lu.LogInfo("Checking volume groups")
7777 vgname = self.cfg.GetVGName()
7779 # Make sure volume group exists on all involved nodes
7780 results = self.rpc.call_vg_list(nodes)
7782 raise errors.OpExecError("Can't list volume groups on the nodes")
7786 res.Raise("Error checking node %s" % node)
7787 if vgname not in res.payload:
7788 raise errors.OpExecError("Volume group '%s' not found on node %s" %
7791 def _CheckDisksExistence(self, nodes):
7792 # Check disk existence
7793 for idx, dev in enumerate(self.instance.disks):
7794 if idx not in self.disks:
7798 self.lu.LogInfo("Checking disk/%d on %s" % (idx, node))
7799 self.cfg.SetDiskID(dev, node)
7801 result = self.rpc.call_blockdev_find(node, dev)
7803 msg = result.fail_msg
7804 if msg or not result.payload:
7806 msg = "disk not found"
7807 raise errors.OpExecError("Can't find disk/%d on node %s: %s" %
7810 def _CheckDisksConsistency(self, node_name, on_primary, ldisk):
7811 for idx, dev in enumerate(self.instance.disks):
7812 if idx not in self.disks:
7815 self.lu.LogInfo("Checking disk/%d consistency on node %s" %
7818 if not _CheckDiskConsistency(self.lu, dev, node_name, on_primary,
7820 raise errors.OpExecError("Node %s has degraded storage, unsafe to"
7821 " replace disks for instance %s" %
7822 (node_name, self.instance.name))
7824 def _CreateNewStorage(self, node_name):
7825 vgname = self.cfg.GetVGName()
7828 for idx, dev in enumerate(self.instance.disks):
7829 if idx not in self.disks:
7832 self.lu.LogInfo("Adding storage on %s for disk/%d" % (node_name, idx))
7834 self.cfg.SetDiskID(dev, node_name)
7836 lv_names = [".disk%d_%s" % (idx, suffix) for suffix in ["data", "meta"]]
7837 names = _GenerateUniqueNames(self.lu, lv_names)
7839 lv_data = objects.Disk(dev_type=constants.LD_LV, size=dev.size,
7840 logical_id=(vgname, names[0]))
7841 lv_meta = objects.Disk(dev_type=constants.LD_LV, size=128,
7842 logical_id=(vgname, names[1]))
7844 new_lvs = [lv_data, lv_meta]
7845 old_lvs = dev.children
7846 iv_names[dev.iv_name] = (dev, old_lvs, new_lvs)
7848 # we pass force_create=True to force the LVM creation
7849 for new_lv in new_lvs:
7850 _CreateBlockDev(self.lu, node_name, self.instance, new_lv, True,
7851 _GetInstanceInfoText(self.instance), False)
7855 def _CheckDevices(self, node_name, iv_names):
7856 for name, (dev, _, _) in iv_names.iteritems():
7857 self.cfg.SetDiskID(dev, node_name)
7859 result = self.rpc.call_blockdev_find(node_name, dev)
7861 msg = result.fail_msg
7862 if msg or not result.payload:
7864 msg = "disk not found"
7865 raise errors.OpExecError("Can't find DRBD device %s: %s" %
7868 if result.payload.is_degraded:
7869 raise errors.OpExecError("DRBD device %s is degraded!" % name)
7871 def _RemoveOldStorage(self, node_name, iv_names):
7872 for name, (_, old_lvs, _) in iv_names.iteritems():
7873 self.lu.LogInfo("Remove logical volumes for %s" % name)
7876 self.cfg.SetDiskID(lv, node_name)
7878 msg = self.rpc.call_blockdev_remove(node_name, lv).fail_msg
7880 self.lu.LogWarning("Can't remove old LV: %s" % msg,
7881 hint="remove unused LVs manually")
7883 def _ReleaseNodeLock(self, node_name):
7884 """Releases the lock for a given node."""
7885 self.lu.context.glm.release(locking.LEVEL_NODE, node_name)
7887 def _ExecDrbd8DiskOnly(self, feedback_fn):
7888 """Replace a disk on the primary or secondary for DRBD 8.
7890 The algorithm for replace is quite complicated:
7892 1. for each disk to be replaced:
7894 1. create new LVs on the target node with unique names
7895 1. detach old LVs from the drbd device
7896 1. rename old LVs to name_replaced.<time_t>
7897 1. rename new LVs to old LVs
7898 1. attach the new LVs (with the old names now) to the drbd device
7900 1. wait for sync across all devices
7902 1. for each modified disk:
7904 1. remove old LVs (which have the name name_replaces.<time_t>)
7906 Failures are not very well handled.
7911 # Step: check device activation
7912 self.lu.LogStep(1, steps_total, "Check device existence")
7913 self._CheckDisksExistence([self.other_node, self.target_node])
7914 self._CheckVolumeGroup([self.target_node, self.other_node])
7916 # Step: check other node consistency
7917 self.lu.LogStep(2, steps_total, "Check peer consistency")
7918 self._CheckDisksConsistency(self.other_node,
7919 self.other_node == self.instance.primary_node,
7922 # Step: create new storage
7923 self.lu.LogStep(3, steps_total, "Allocate new storage")
7924 iv_names = self._CreateNewStorage(self.target_node)
7926 # Step: for each lv, detach+rename*2+attach
7927 self.lu.LogStep(4, steps_total, "Changing drbd configuration")
7928 for dev, old_lvs, new_lvs in iv_names.itervalues():
7929 self.lu.LogInfo("Detaching %s drbd from local storage" % dev.iv_name)
7931 result = self.rpc.call_blockdev_removechildren(self.target_node, dev,
7933 result.Raise("Can't detach drbd from local storage on node"
7934 " %s for device %s" % (self.target_node, dev.iv_name))
7936 #cfg.Update(instance)
7938 # ok, we created the new LVs, so now we know we have the needed
7939 # storage; as such, we proceed on the target node to rename
7940 # old_lv to _old, and new_lv to old_lv; note that we rename LVs
7941 # using the assumption that logical_id == physical_id (which in
7942 # turn is the unique_id on that node)
7944 # FIXME(iustin): use a better name for the replaced LVs
7945 temp_suffix = int(time.time())
7946 ren_fn = lambda d, suff: (d.physical_id[0],
7947 d.physical_id[1] + "_replaced-%s" % suff)
7949 # Build the rename list based on what LVs exist on the node
7950 rename_old_to_new = []
7951 for to_ren in old_lvs:
7952 result = self.rpc.call_blockdev_find(self.target_node, to_ren)
7953 if not result.fail_msg and result.payload:
7955 rename_old_to_new.append((to_ren, ren_fn(to_ren, temp_suffix)))
7957 self.lu.LogInfo("Renaming the old LVs on the target node")
7958 result = self.rpc.call_blockdev_rename(self.target_node,
7960 result.Raise("Can't rename old LVs on node %s" % self.target_node)
7962 # Now we rename the new LVs to the old LVs
7963 self.lu.LogInfo("Renaming the new LVs on the target node")
7964 rename_new_to_old = [(new, old.physical_id)
7965 for old, new in zip(old_lvs, new_lvs)]
7966 result = self.rpc.call_blockdev_rename(self.target_node,
7968 result.Raise("Can't rename new LVs on node %s" % self.target_node)
7970 for old, new in zip(old_lvs, new_lvs):
7971 new.logical_id = old.logical_id
7972 self.cfg.SetDiskID(new, self.target_node)
7974 for disk in old_lvs:
7975 disk.logical_id = ren_fn(disk, temp_suffix)
7976 self.cfg.SetDiskID(disk, self.target_node)
7978 # Now that the new lvs have the old name, we can add them to the device
7979 self.lu.LogInfo("Adding new mirror component on %s" % self.target_node)
7980 result = self.rpc.call_blockdev_addchildren(self.target_node, dev,
7982 msg = result.fail_msg
7984 for new_lv in new_lvs:
7985 msg2 = self.rpc.call_blockdev_remove(self.target_node,
7988 self.lu.LogWarning("Can't rollback device %s: %s", dev, msg2,
7989 hint=("cleanup manually the unused logical"
7991 raise errors.OpExecError("Can't add local storage to drbd: %s" % msg)
7993 dev.children = new_lvs
7995 self.cfg.Update(self.instance, feedback_fn)
7998 if self.early_release:
7999 self.lu.LogStep(cstep, steps_total, "Removing old storage")
8001 self._RemoveOldStorage(self.target_node, iv_names)
8002 # WARNING: we release both node locks here, do not do other RPCs
8003 # than WaitForSync to the primary node
8004 self._ReleaseNodeLock([self.target_node, self.other_node])
8007 # This can fail as the old devices are degraded and _WaitForSync
8008 # does a combined result over all disks, so we don't check its return value
8009 self.lu.LogStep(cstep, steps_total, "Sync devices")
8011 _WaitForSync(self.lu, self.instance)
8013 # Check all devices manually
8014 self._CheckDevices(self.instance.primary_node, iv_names)
8016 # Step: remove old storage
8017 if not self.early_release:
8018 self.lu.LogStep(cstep, steps_total, "Removing old storage")
8020 self._RemoveOldStorage(self.target_node, iv_names)
8022 def _ExecDrbd8Secondary(self, feedback_fn):
8023 """Replace the secondary node for DRBD 8.
8025 The algorithm for replace is quite complicated:
8026 - for all disks of the instance:
8027 - create new LVs on the new node with same names
8028 - shutdown the drbd device on the old secondary
8029 - disconnect the drbd network on the primary
8030 - create the drbd device on the new secondary
8031 - network attach the drbd on the primary, using an artifice:
8032 the drbd code for Attach() will connect to the network if it
8033 finds a device which is connected to the good local disks but
8035 - wait for sync across all devices
8036 - remove all disks from the old secondary
8038 Failures are not very well handled.
8043 # Step: check device activation
8044 self.lu.LogStep(1, steps_total, "Check device existence")
8045 self._CheckDisksExistence([self.instance.primary_node])
8046 self._CheckVolumeGroup([self.instance.primary_node])
8048 # Step: check other node consistency
8049 self.lu.LogStep(2, steps_total, "Check peer consistency")
8050 self._CheckDisksConsistency(self.instance.primary_node, True, True)
8052 # Step: create new storage
8053 self.lu.LogStep(3, steps_total, "Allocate new storage")
8054 for idx, dev in enumerate(self.instance.disks):
8055 self.lu.LogInfo("Adding new local storage on %s for disk/%d" %
8056 (self.new_node, idx))
8057 # we pass force_create=True to force LVM creation
8058 for new_lv in dev.children:
8059 _CreateBlockDev(self.lu, self.new_node, self.instance, new_lv, True,
8060 _GetInstanceInfoText(self.instance), False)
8062 # Step 4: dbrd minors and drbd setups changes
8063 # after this, we must manually remove the drbd minors on both the
8064 # error and the success paths
8065 self.lu.LogStep(4, steps_total, "Changing drbd configuration")
8066 minors = self.cfg.AllocateDRBDMinor([self.new_node
8067 for dev in self.instance.disks],
8069 logging.debug("Allocated minors %r", minors)
8072 for idx, (dev, new_minor) in enumerate(zip(self.instance.disks, minors)):
8073 self.lu.LogInfo("activating a new drbd on %s for disk/%d" %
8074 (self.new_node, idx))
8075 # create new devices on new_node; note that we create two IDs:
8076 # one without port, so the drbd will be activated without
8077 # networking information on the new node at this stage, and one
8078 # with network, for the latter activation in step 4
8079 (o_node1, o_node2, o_port, o_minor1, o_minor2, o_secret) = dev.logical_id
8080 if self.instance.primary_node == o_node1:
8083 assert self.instance.primary_node == o_node2, "Three-node instance?"
8086 new_alone_id = (self.instance.primary_node, self.new_node, None,
8087 p_minor, new_minor, o_secret)
8088 new_net_id = (self.instance.primary_node, self.new_node, o_port,
8089 p_minor, new_minor, o_secret)
8091 iv_names[idx] = (dev, dev.children, new_net_id)
8092 logging.debug("Allocated new_minor: %s, new_logical_id: %s", new_minor,
8094 new_drbd = objects.Disk(dev_type=constants.LD_DRBD8,
8095 logical_id=new_alone_id,
8096 children=dev.children,
8099 _CreateSingleBlockDev(self.lu, self.new_node, self.instance, new_drbd,
8100 _GetInstanceInfoText(self.instance), False)
8101 except errors.GenericError:
8102 self.cfg.ReleaseDRBDMinors(self.instance.name)
8105 # We have new devices, shutdown the drbd on the old secondary
8106 for idx, dev in enumerate(self.instance.disks):
8107 self.lu.LogInfo("Shutting down drbd for disk/%d on old node" % idx)
8108 self.cfg.SetDiskID(dev, self.target_node)
8109 msg = self.rpc.call_blockdev_shutdown(self.target_node, dev).fail_msg
8111 self.lu.LogWarning("Failed to shutdown drbd for disk/%d on old"
8112 "node: %s" % (idx, msg),
8113 hint=("Please cleanup this device manually as"
8114 " soon as possible"))
8116 self.lu.LogInfo("Detaching primary drbds from the network (=> standalone)")
8117 result = self.rpc.call_drbd_disconnect_net([self.instance.primary_node],
8118 self.node_secondary_ip,
8119 self.instance.disks)\
8120 [self.instance.primary_node]
8122 msg = result.fail_msg
8124 # detaches didn't succeed (unlikely)
8125 self.cfg.ReleaseDRBDMinors(self.instance.name)
8126 raise errors.OpExecError("Can't detach the disks from the network on"
8127 " old node: %s" % (msg,))
8129 # if we managed to detach at least one, we update all the disks of
8130 # the instance to point to the new secondary
8131 self.lu.LogInfo("Updating instance configuration")
8132 for dev, _, new_logical_id in iv_names.itervalues():
8133 dev.logical_id = new_logical_id
8134 self.cfg.SetDiskID(dev, self.instance.primary_node)
8136 self.cfg.Update(self.instance, feedback_fn)
8138 # and now perform the drbd attach
8139 self.lu.LogInfo("Attaching primary drbds to new secondary"
8140 " (standalone => connected)")
8141 result = self.rpc.call_drbd_attach_net([self.instance.primary_node,
8143 self.node_secondary_ip,
8144 self.instance.disks,
8147 for to_node, to_result in result.items():
8148 msg = to_result.fail_msg
8150 self.lu.LogWarning("Can't attach drbd disks on node %s: %s",
8152 hint=("please do a gnt-instance info to see the"
8153 " status of disks"))
8155 if self.early_release:
8156 self.lu.LogStep(cstep, steps_total, "Removing old storage")
8158 self._RemoveOldStorage(self.target_node, iv_names)
8159 # WARNING: we release all node locks here, do not do other RPCs
8160 # than WaitForSync to the primary node
8161 self._ReleaseNodeLock([self.instance.primary_node,
8166 # This can fail as the old devices are degraded and _WaitForSync
8167 # does a combined result over all disks, so we don't check its return value
8168 self.lu.LogStep(cstep, steps_total, "Sync devices")
8170 _WaitForSync(self.lu, self.instance)
8172 # Check all devices manually
8173 self._CheckDevices(self.instance.primary_node, iv_names)
8175 # Step: remove old storage
8176 if not self.early_release:
8177 self.lu.LogStep(cstep, steps_total, "Removing old storage")
8178 self._RemoveOldStorage(self.target_node, iv_names)
8181 class LURepairNodeStorage(NoHooksLU):
8182 """Repairs the volume group on a node.
8187 ("storage_type", ht.NoDefault, _CheckStorageType),
8188 ("name", ht.NoDefault, ht.TNonEmptyString),
8189 ("ignore_consistency", False, ht.TBool),
8193 def CheckArguments(self):
8194 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
8196 storage_type = self.op.storage_type
8198 if (constants.SO_FIX_CONSISTENCY not in
8199 constants.VALID_STORAGE_OPERATIONS.get(storage_type, [])):
8200 raise errors.OpPrereqError("Storage units of type '%s' can not be"
8201 " repaired" % storage_type,
8204 def ExpandNames(self):
8205 self.needed_locks = {
8206 locking.LEVEL_NODE: [self.op.node_name],
8209 def _CheckFaultyDisks(self, instance, node_name):
8210 """Ensure faulty disks abort the opcode or at least warn."""
8212 if _FindFaultyInstanceDisks(self.cfg, self.rpc, instance,
8214 raise errors.OpPrereqError("Instance '%s' has faulty disks on"
8215 " node '%s'" % (instance.name, node_name),
8217 except errors.OpPrereqError, err:
8218 if self.op.ignore_consistency:
8219 self.proc.LogWarning(str(err.args[0]))
8223 def CheckPrereq(self):
8224 """Check prerequisites.
8227 # Check whether any instance on this node has faulty disks
8228 for inst in _GetNodeInstances(self.cfg, self.op.node_name):
8229 if not inst.admin_up:
8231 check_nodes = set(inst.all_nodes)
8232 check_nodes.discard(self.op.node_name)
8233 for inst_node_name in check_nodes:
8234 self._CheckFaultyDisks(inst, inst_node_name)
8236 def Exec(self, feedback_fn):
8237 feedback_fn("Repairing storage unit '%s' on %s ..." %
8238 (self.op.name, self.op.node_name))
8240 st_args = _GetStorageTypeArgs(self.cfg, self.op.storage_type)
8241 result = self.rpc.call_storage_execute(self.op.node_name,
8242 self.op.storage_type, st_args,
8244 constants.SO_FIX_CONSISTENCY)
8245 result.Raise("Failed to repair storage unit '%s' on %s" %
8246 (self.op.name, self.op.node_name))
8249 class LUNodeEvacuationStrategy(NoHooksLU):
8250 """Computes the node evacuation strategy.
8254 ("nodes", ht.NoDefault, ht.TListOf(ht.TNonEmptyString)),
8255 ("remote_node", None, ht.TMaybeString),
8256 ("iallocator", None, ht.TMaybeString),
8260 def CheckArguments(self):
8261 _CheckIAllocatorOrNode(self, "iallocator", "remote_node")
8263 def ExpandNames(self):
8264 self.op.nodes = _GetWantedNodes(self, self.op.nodes)
8265 self.needed_locks = locks = {}
8266 if self.op.remote_node is None:
8267 locks[locking.LEVEL_NODE] = locking.ALL_SET
8269 self.op.remote_node = _ExpandNodeName(self.cfg, self.op.remote_node)
8270 locks[locking.LEVEL_NODE] = self.op.nodes + [self.op.remote_node]
8272 def Exec(self, feedback_fn):
8273 if self.op.remote_node is not None:
8275 for node in self.op.nodes:
8276 instances.extend(_GetNodeSecondaryInstances(self.cfg, node))
8279 if i.primary_node == self.op.remote_node:
8280 raise errors.OpPrereqError("Node %s is the primary node of"
8281 " instance %s, cannot use it as"
8283 (self.op.remote_node, i.name),
8285 result.append([i.name, self.op.remote_node])
8287 ial = IAllocator(self.cfg, self.rpc,
8288 mode=constants.IALLOCATOR_MODE_MEVAC,
8289 evac_nodes=self.op.nodes)
8290 ial.Run(self.op.iallocator, validate=True)
8292 raise errors.OpExecError("No valid evacuation solution: %s" % ial.info,
8298 class LUGrowDisk(LogicalUnit):
8299 """Grow a disk of an instance.
8303 HTYPE = constants.HTYPE_INSTANCE
8306 ("disk", ht.NoDefault, ht.TInt),
8307 ("amount", ht.NoDefault, ht.TInt),
8308 ("wait_for_sync", True, ht.TBool),
8312 def ExpandNames(self):
8313 self._ExpandAndLockInstance()
8314 self.needed_locks[locking.LEVEL_NODE] = []
8315 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
8317 def DeclareLocks(self, level):
8318 if level == locking.LEVEL_NODE:
8319 self._LockInstancesNodes()
8321 def BuildHooksEnv(self):
8324 This runs on the master, the primary and all the secondaries.
8328 "DISK": self.op.disk,
8329 "AMOUNT": self.op.amount,
8331 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
8332 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
8335 def CheckPrereq(self):
8336 """Check prerequisites.
8338 This checks that the instance is in the cluster.
8341 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
8342 assert instance is not None, \
8343 "Cannot retrieve locked instance %s" % self.op.instance_name
8344 nodenames = list(instance.all_nodes)
8345 for node in nodenames:
8346 _CheckNodeOnline(self, node)
8348 self.instance = instance
8350 if instance.disk_template not in constants.DTS_GROWABLE:
8351 raise errors.OpPrereqError("Instance's disk layout does not support"
8352 " growing.", errors.ECODE_INVAL)
8354 self.disk = instance.FindDisk(self.op.disk)
8356 if instance.disk_template != constants.DT_FILE:
8357 # TODO: check the free disk space for file, when that feature will be
8359 _CheckNodesFreeDisk(self, nodenames, self.op.amount)
8361 def Exec(self, feedback_fn):
8362 """Execute disk grow.
8365 instance = self.instance
8368 disks_ok, _ = _AssembleInstanceDisks(self, self.instance, disks=[disk])
8370 raise errors.OpExecError("Cannot activate block device to grow")
8372 for node in instance.all_nodes:
8373 self.cfg.SetDiskID(disk, node)
8374 result = self.rpc.call_blockdev_grow(node, disk, self.op.amount)
8375 result.Raise("Grow request failed to node %s" % node)
8377 # TODO: Rewrite code to work properly
8378 # DRBD goes into sync mode for a short amount of time after executing the
8379 # "resize" command. DRBD 8.x below version 8.0.13 contains a bug whereby
8380 # calling "resize" in sync mode fails. Sleeping for a short amount of
8381 # time is a work-around.
8384 disk.RecordGrow(self.op.amount)
8385 self.cfg.Update(instance, feedback_fn)
8386 if self.op.wait_for_sync:
8387 disk_abort = not _WaitForSync(self, instance, disks=[disk])
8389 self.proc.LogWarning("Warning: disk sync-ing has not returned a good"
8390 " status.\nPlease check the instance.")
8391 if not instance.admin_up:
8392 _SafeShutdownInstanceDisks(self, instance, disks=[disk])
8393 elif not instance.admin_up:
8394 self.proc.LogWarning("Not shutting down the disk even if the instance is"
8395 " not supposed to be running because no wait for"
8396 " sync mode was requested.")
8399 class LUQueryInstanceData(NoHooksLU):
8400 """Query runtime instance data.
8404 ("instances", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
8405 ("static", False, ht.TBool),
8409 def ExpandNames(self):
8410 self.needed_locks = {}
8411 self.share_locks = dict.fromkeys(locking.LEVELS, 1)
8413 if self.op.instances:
8414 self.wanted_names = []
8415 for name in self.op.instances:
8416 full_name = _ExpandInstanceName(self.cfg, name)
8417 self.wanted_names.append(full_name)
8418 self.needed_locks[locking.LEVEL_INSTANCE] = self.wanted_names
8420 self.wanted_names = None
8421 self.needed_locks[locking.LEVEL_INSTANCE] = locking.ALL_SET
8423 self.needed_locks[locking.LEVEL_NODE] = []
8424 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
8426 def DeclareLocks(self, level):
8427 if level == locking.LEVEL_NODE:
8428 self._LockInstancesNodes()
8430 def CheckPrereq(self):
8431 """Check prerequisites.
8433 This only checks the optional instance list against the existing names.
8436 if self.wanted_names is None:
8437 self.wanted_names = self.acquired_locks[locking.LEVEL_INSTANCE]
8439 self.wanted_instances = [self.cfg.GetInstanceInfo(name) for name
8440 in self.wanted_names]
8442 def _ComputeBlockdevStatus(self, node, instance_name, dev):
8443 """Returns the status of a block device
8446 if self.op.static or not node:
8449 self.cfg.SetDiskID(dev, node)
8451 result = self.rpc.call_blockdev_find(node, dev)
8455 result.Raise("Can't compute disk status for %s" % instance_name)
8457 status = result.payload
8461 return (status.dev_path, status.major, status.minor,
8462 status.sync_percent, status.estimated_time,
8463 status.is_degraded, status.ldisk_status)
8465 def _ComputeDiskStatus(self, instance, snode, dev):
8466 """Compute block device status.
8469 if dev.dev_type in constants.LDS_DRBD:
8470 # we change the snode then (otherwise we use the one passed in)
8471 if dev.logical_id[0] == instance.primary_node:
8472 snode = dev.logical_id[1]
8474 snode = dev.logical_id[0]
8476 dev_pstatus = self._ComputeBlockdevStatus(instance.primary_node,
8478 dev_sstatus = self._ComputeBlockdevStatus(snode, instance.name, dev)
8481 dev_children = [self._ComputeDiskStatus(instance, snode, child)
8482 for child in dev.children]
8487 "iv_name": dev.iv_name,
8488 "dev_type": dev.dev_type,
8489 "logical_id": dev.logical_id,
8490 "physical_id": dev.physical_id,
8491 "pstatus": dev_pstatus,
8492 "sstatus": dev_sstatus,
8493 "children": dev_children,
8500 def Exec(self, feedback_fn):
8501 """Gather and return data"""
8504 cluster = self.cfg.GetClusterInfo()
8506 for instance in self.wanted_instances:
8507 if not self.op.static:
8508 remote_info = self.rpc.call_instance_info(instance.primary_node,
8510 instance.hypervisor)
8511 remote_info.Raise("Error checking node %s" % instance.primary_node)
8512 remote_info = remote_info.payload
8513 if remote_info and "state" in remote_info:
8516 remote_state = "down"
8519 if instance.admin_up:
8522 config_state = "down"
8524 disks = [self._ComputeDiskStatus(instance, None, device)
8525 for device in instance.disks]
8528 "name": instance.name,
8529 "config_state": config_state,
8530 "run_state": remote_state,
8531 "pnode": instance.primary_node,
8532 "snodes": instance.secondary_nodes,
8534 # this happens to be the same format used for hooks
8535 "nics": _NICListToTuple(self, instance.nics),
8536 "disk_template": instance.disk_template,
8538 "hypervisor": instance.hypervisor,
8539 "network_port": instance.network_port,
8540 "hv_instance": instance.hvparams,
8541 "hv_actual": cluster.FillHV(instance, skip_globals=True),
8542 "be_instance": instance.beparams,
8543 "be_actual": cluster.FillBE(instance),
8544 "os_instance": instance.osparams,
8545 "os_actual": cluster.SimpleFillOS(instance.os, instance.osparams),
8546 "serial_no": instance.serial_no,
8547 "mtime": instance.mtime,
8548 "ctime": instance.ctime,
8549 "uuid": instance.uuid,
8552 result[instance.name] = idict
8557 class LUSetInstanceParams(LogicalUnit):
8558 """Modifies an instances's parameters.
8561 HPATH = "instance-modify"
8562 HTYPE = constants.HTYPE_INSTANCE
8565 ("nics", ht.EmptyList, ht.TList),
8566 ("disks", ht.EmptyList, ht.TList),
8567 ("beparams", ht.EmptyDict, ht.TDict),
8568 ("hvparams", ht.EmptyDict, ht.TDict),
8569 ("disk_template", None, ht.TMaybeString),
8570 ("remote_node", None, ht.TMaybeString),
8571 ("os_name", None, ht.TMaybeString),
8572 ("force_variant", False, ht.TBool),
8573 ("osparams", None, ht.TOr(ht.TDict, ht.TNone)),
8578 def CheckArguments(self):
8579 if not (self.op.nics or self.op.disks or self.op.disk_template or
8580 self.op.hvparams or self.op.beparams or self.op.os_name):
8581 raise errors.OpPrereqError("No changes submitted", errors.ECODE_INVAL)
8583 if self.op.hvparams:
8584 _CheckGlobalHvParams(self.op.hvparams)
8588 for disk_op, disk_dict in self.op.disks:
8589 utils.ForceDictType(disk_dict, constants.IDISK_PARAMS_TYPES)
8590 if disk_op == constants.DDM_REMOVE:
8593 elif disk_op == constants.DDM_ADD:
8596 if not isinstance(disk_op, int):
8597 raise errors.OpPrereqError("Invalid disk index", errors.ECODE_INVAL)
8598 if not isinstance(disk_dict, dict):
8599 msg = "Invalid disk value: expected dict, got '%s'" % disk_dict
8600 raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
8602 if disk_op == constants.DDM_ADD:
8603 mode = disk_dict.setdefault('mode', constants.DISK_RDWR)
8604 if mode not in constants.DISK_ACCESS_SET:
8605 raise errors.OpPrereqError("Invalid disk access mode '%s'" % mode,
8607 size = disk_dict.get('size', None)
8609 raise errors.OpPrereqError("Required disk parameter size missing",
8613 except (TypeError, ValueError), err:
8614 raise errors.OpPrereqError("Invalid disk size parameter: %s" %
8615 str(err), errors.ECODE_INVAL)
8616 disk_dict['size'] = size
8618 # modification of disk
8619 if 'size' in disk_dict:
8620 raise errors.OpPrereqError("Disk size change not possible, use"
8621 " grow-disk", errors.ECODE_INVAL)
8623 if disk_addremove > 1:
8624 raise errors.OpPrereqError("Only one disk add or remove operation"
8625 " supported at a time", errors.ECODE_INVAL)
8627 if self.op.disks and self.op.disk_template is not None:
8628 raise errors.OpPrereqError("Disk template conversion and other disk"
8629 " changes not supported at the same time",
8632 if self.op.disk_template:
8633 _CheckDiskTemplate(self.op.disk_template)
8634 if (self.op.disk_template in constants.DTS_NET_MIRROR and
8635 self.op.remote_node is None):
8636 raise errors.OpPrereqError("Changing the disk template to a mirrored"
8637 " one requires specifying a secondary node",
8642 for nic_op, nic_dict in self.op.nics:
8643 utils.ForceDictType(nic_dict, constants.INIC_PARAMS_TYPES)
8644 if nic_op == constants.DDM_REMOVE:
8647 elif nic_op == constants.DDM_ADD:
8650 if not isinstance(nic_op, int):
8651 raise errors.OpPrereqError("Invalid nic index", errors.ECODE_INVAL)
8652 if not isinstance(nic_dict, dict):
8653 msg = "Invalid nic value: expected dict, got '%s'" % nic_dict
8654 raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
8656 # nic_dict should be a dict
8657 nic_ip = nic_dict.get('ip', None)
8658 if nic_ip is not None:
8659 if nic_ip.lower() == constants.VALUE_NONE:
8660 nic_dict['ip'] = None
8662 if not netutils.IPAddress.IsValid(nic_ip):
8663 raise errors.OpPrereqError("Invalid IP address '%s'" % nic_ip,
8666 nic_bridge = nic_dict.get('bridge', None)
8667 nic_link = nic_dict.get('link', None)
8668 if nic_bridge and nic_link:
8669 raise errors.OpPrereqError("Cannot pass 'bridge' and 'link'"
8670 " at the same time", errors.ECODE_INVAL)
8671 elif nic_bridge and nic_bridge.lower() == constants.VALUE_NONE:
8672 nic_dict['bridge'] = None
8673 elif nic_link and nic_link.lower() == constants.VALUE_NONE:
8674 nic_dict['link'] = None
8676 if nic_op == constants.DDM_ADD:
8677 nic_mac = nic_dict.get('mac', None)
8679 nic_dict['mac'] = constants.VALUE_AUTO
8681 if 'mac' in nic_dict:
8682 nic_mac = nic_dict['mac']
8683 if nic_mac not in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
8684 nic_mac = utils.NormalizeAndValidateMac(nic_mac)
8686 if nic_op != constants.DDM_ADD and nic_mac == constants.VALUE_AUTO:
8687 raise errors.OpPrereqError("'auto' is not a valid MAC address when"
8688 " modifying an existing nic",
8691 if nic_addremove > 1:
8692 raise errors.OpPrereqError("Only one NIC add or remove operation"
8693 " supported at a time", errors.ECODE_INVAL)
8695 def ExpandNames(self):
8696 self._ExpandAndLockInstance()
8697 self.needed_locks[locking.LEVEL_NODE] = []
8698 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
8700 def DeclareLocks(self, level):
8701 if level == locking.LEVEL_NODE:
8702 self._LockInstancesNodes()
8703 if self.op.disk_template and self.op.remote_node:
8704 self.op.remote_node = _ExpandNodeName(self.cfg, self.op.remote_node)
8705 self.needed_locks[locking.LEVEL_NODE].append(self.op.remote_node)
8707 def BuildHooksEnv(self):
8710 This runs on the master, primary and secondaries.
8714 if constants.BE_MEMORY in self.be_new:
8715 args['memory'] = self.be_new[constants.BE_MEMORY]
8716 if constants.BE_VCPUS in self.be_new:
8717 args['vcpus'] = self.be_new[constants.BE_VCPUS]
8718 # TODO: export disk changes. Note: _BuildInstanceHookEnv* don't export disk
8719 # information at all.
8722 nic_override = dict(self.op.nics)
8723 for idx, nic in enumerate(self.instance.nics):
8724 if idx in nic_override:
8725 this_nic_override = nic_override[idx]
8727 this_nic_override = {}
8728 if 'ip' in this_nic_override:
8729 ip = this_nic_override['ip']
8732 if 'mac' in this_nic_override:
8733 mac = this_nic_override['mac']
8736 if idx in self.nic_pnew:
8737 nicparams = self.nic_pnew[idx]
8739 nicparams = self.cluster.SimpleFillNIC(nic.nicparams)
8740 mode = nicparams[constants.NIC_MODE]
8741 link = nicparams[constants.NIC_LINK]
8742 args['nics'].append((ip, mac, mode, link))
8743 if constants.DDM_ADD in nic_override:
8744 ip = nic_override[constants.DDM_ADD].get('ip', None)
8745 mac = nic_override[constants.DDM_ADD]['mac']
8746 nicparams = self.nic_pnew[constants.DDM_ADD]
8747 mode = nicparams[constants.NIC_MODE]
8748 link = nicparams[constants.NIC_LINK]
8749 args['nics'].append((ip, mac, mode, link))
8750 elif constants.DDM_REMOVE in nic_override:
8751 del args['nics'][-1]
8753 env = _BuildInstanceHookEnvByObject(self, self.instance, override=args)
8754 if self.op.disk_template:
8755 env["NEW_DISK_TEMPLATE"] = self.op.disk_template
8756 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
8759 def CheckPrereq(self):
8760 """Check prerequisites.
8762 This only checks the instance list against the existing names.
8765 # checking the new params on the primary/secondary nodes
8767 instance = self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
8768 cluster = self.cluster = self.cfg.GetClusterInfo()
8769 assert self.instance is not None, \
8770 "Cannot retrieve locked instance %s" % self.op.instance_name
8771 pnode = instance.primary_node
8772 nodelist = list(instance.all_nodes)
8775 if self.op.os_name and not self.op.force:
8776 _CheckNodeHasOS(self, instance.primary_node, self.op.os_name,
8777 self.op.force_variant)
8778 instance_os = self.op.os_name
8780 instance_os = instance.os
8782 if self.op.disk_template:
8783 if instance.disk_template == self.op.disk_template:
8784 raise errors.OpPrereqError("Instance already has disk template %s" %
8785 instance.disk_template, errors.ECODE_INVAL)
8787 if (instance.disk_template,
8788 self.op.disk_template) not in self._DISK_CONVERSIONS:
8789 raise errors.OpPrereqError("Unsupported disk template conversion from"
8790 " %s to %s" % (instance.disk_template,
8791 self.op.disk_template),
8793 _CheckInstanceDown(self, instance, "cannot change disk template")
8794 if self.op.disk_template in constants.DTS_NET_MIRROR:
8795 if self.op.remote_node == pnode:
8796 raise errors.OpPrereqError("Given new secondary node %s is the same"
8797 " as the primary node of the instance" %
8798 self.op.remote_node, errors.ECODE_STATE)
8799 _CheckNodeOnline(self, self.op.remote_node)
8800 _CheckNodeNotDrained(self, self.op.remote_node)
8801 disks = [{"size": d.size} for d in instance.disks]
8802 required = _ComputeDiskSize(self.op.disk_template, disks)
8803 _CheckNodesFreeDisk(self, [self.op.remote_node], required)
8805 # hvparams processing
8806 if self.op.hvparams:
8807 hv_type = instance.hypervisor
8808 i_hvdict = _GetUpdatedParams(instance.hvparams, self.op.hvparams)
8809 utils.ForceDictType(i_hvdict, constants.HVS_PARAMETER_TYPES)
8810 hv_new = cluster.SimpleFillHV(hv_type, instance.os, i_hvdict)
8813 hypervisor.GetHypervisor(hv_type).CheckParameterSyntax(hv_new)
8814 _CheckHVParams(self, nodelist, instance.hypervisor, hv_new)
8815 self.hv_new = hv_new # the new actual values
8816 self.hv_inst = i_hvdict # the new dict (without defaults)
8818 self.hv_new = self.hv_inst = {}
8820 # beparams processing
8821 if self.op.beparams:
8822 i_bedict = _GetUpdatedParams(instance.beparams, self.op.beparams,
8824 utils.ForceDictType(i_bedict, constants.BES_PARAMETER_TYPES)
8825 be_new = cluster.SimpleFillBE(i_bedict)
8826 self.be_new = be_new # the new actual values
8827 self.be_inst = i_bedict # the new dict (without defaults)
8829 self.be_new = self.be_inst = {}
8831 # osparams processing
8832 if self.op.osparams:
8833 i_osdict = _GetUpdatedParams(instance.osparams, self.op.osparams)
8834 _CheckOSParams(self, True, nodelist, instance_os, i_osdict)
8835 self.os_new = cluster.SimpleFillOS(instance_os, i_osdict)
8836 self.os_inst = i_osdict # the new dict (without defaults)
8838 self.os_new = self.os_inst = {}
8842 if constants.BE_MEMORY in self.op.beparams and not self.op.force:
8843 mem_check_list = [pnode]
8844 if be_new[constants.BE_AUTO_BALANCE]:
8845 # either we changed auto_balance to yes or it was from before
8846 mem_check_list.extend(instance.secondary_nodes)
8847 instance_info = self.rpc.call_instance_info(pnode, instance.name,
8848 instance.hypervisor)
8849 nodeinfo = self.rpc.call_node_info(mem_check_list, self.cfg.GetVGName(),
8850 instance.hypervisor)
8851 pninfo = nodeinfo[pnode]
8852 msg = pninfo.fail_msg
8854 # Assume the primary node is unreachable and go ahead
8855 self.warn.append("Can't get info from primary node %s: %s" %
8857 elif not isinstance(pninfo.payload.get('memory_free', None), int):
8858 self.warn.append("Node data from primary node %s doesn't contain"
8859 " free memory information" % pnode)
8860 elif instance_info.fail_msg:
8861 self.warn.append("Can't get instance runtime information: %s" %
8862 instance_info.fail_msg)
8864 if instance_info.payload:
8865 current_mem = int(instance_info.payload['memory'])
8867 # Assume instance not running
8868 # (there is a slight race condition here, but it's not very probable,
8869 # and we have no other way to check)
8871 miss_mem = (be_new[constants.BE_MEMORY] - current_mem -
8872 pninfo.payload['memory_free'])
8874 raise errors.OpPrereqError("This change will prevent the instance"
8875 " from starting, due to %d MB of memory"
8876 " missing on its primary node" % miss_mem,
8879 if be_new[constants.BE_AUTO_BALANCE]:
8880 for node, nres in nodeinfo.items():
8881 if node not in instance.secondary_nodes:
8885 self.warn.append("Can't get info from secondary node %s: %s" %
8887 elif not isinstance(nres.payload.get('memory_free', None), int):
8888 self.warn.append("Secondary node %s didn't return free"
8889 " memory information" % node)
8890 elif be_new[constants.BE_MEMORY] > nres.payload['memory_free']:
8891 self.warn.append("Not enough memory to failover instance to"
8892 " secondary node %s" % node)
8897 for nic_op, nic_dict in self.op.nics:
8898 if nic_op == constants.DDM_REMOVE:
8899 if not instance.nics:
8900 raise errors.OpPrereqError("Instance has no NICs, cannot remove",
8903 if nic_op != constants.DDM_ADD:
8905 if not instance.nics:
8906 raise errors.OpPrereqError("Invalid NIC index %s, instance has"
8907 " no NICs" % nic_op,
8909 if nic_op < 0 or nic_op >= len(instance.nics):
8910 raise errors.OpPrereqError("Invalid NIC index %s, valid values"
8912 (nic_op, len(instance.nics) - 1),
8914 old_nic_params = instance.nics[nic_op].nicparams
8915 old_nic_ip = instance.nics[nic_op].ip
8920 update_params_dict = dict([(key, nic_dict[key])
8921 for key in constants.NICS_PARAMETERS
8922 if key in nic_dict])
8924 if 'bridge' in nic_dict:
8925 update_params_dict[constants.NIC_LINK] = nic_dict['bridge']
8927 new_nic_params = _GetUpdatedParams(old_nic_params,
8929 utils.ForceDictType(new_nic_params, constants.NICS_PARAMETER_TYPES)
8930 new_filled_nic_params = cluster.SimpleFillNIC(new_nic_params)
8931 objects.NIC.CheckParameterSyntax(new_filled_nic_params)
8932 self.nic_pinst[nic_op] = new_nic_params
8933 self.nic_pnew[nic_op] = new_filled_nic_params
8934 new_nic_mode = new_filled_nic_params[constants.NIC_MODE]
8936 if new_nic_mode == constants.NIC_MODE_BRIDGED:
8937 nic_bridge = new_filled_nic_params[constants.NIC_LINK]
8938 msg = self.rpc.call_bridges_exist(pnode, [nic_bridge]).fail_msg
8940 msg = "Error checking bridges on node %s: %s" % (pnode, msg)
8942 self.warn.append(msg)
8944 raise errors.OpPrereqError(msg, errors.ECODE_ENVIRON)
8945 if new_nic_mode == constants.NIC_MODE_ROUTED:
8946 if 'ip' in nic_dict:
8947 nic_ip = nic_dict['ip']
8951 raise errors.OpPrereqError('Cannot set the nic ip to None'
8952 ' on a routed nic', errors.ECODE_INVAL)
8953 if 'mac' in nic_dict:
8954 nic_mac = nic_dict['mac']
8956 raise errors.OpPrereqError('Cannot set the nic mac to None',
8958 elif nic_mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
8959 # otherwise generate the mac
8960 nic_dict['mac'] = self.cfg.GenerateMAC(self.proc.GetECId())
8962 # or validate/reserve the current one
8964 self.cfg.ReserveMAC(nic_mac, self.proc.GetECId())
8965 except errors.ReservationError:
8966 raise errors.OpPrereqError("MAC address %s already in use"
8967 " in cluster" % nic_mac,
8968 errors.ECODE_NOTUNIQUE)
8971 if self.op.disks and instance.disk_template == constants.DT_DISKLESS:
8972 raise errors.OpPrereqError("Disk operations not supported for"
8973 " diskless instances",
8975 for disk_op, _ in self.op.disks:
8976 if disk_op == constants.DDM_REMOVE:
8977 if len(instance.disks) == 1:
8978 raise errors.OpPrereqError("Cannot remove the last disk of"
8979 " an instance", errors.ECODE_INVAL)
8980 _CheckInstanceDown(self, instance, "cannot remove disks")
8982 if (disk_op == constants.DDM_ADD and
8983 len(instance.nics) >= constants.MAX_DISKS):
8984 raise errors.OpPrereqError("Instance has too many disks (%d), cannot"
8985 " add more" % constants.MAX_DISKS,
8987 if disk_op not in (constants.DDM_ADD, constants.DDM_REMOVE):
8989 if disk_op < 0 or disk_op >= len(instance.disks):
8990 raise errors.OpPrereqError("Invalid disk index %s, valid values"
8992 (disk_op, len(instance.disks)),
8997 def _ConvertPlainToDrbd(self, feedback_fn):
8998 """Converts an instance from plain to drbd.
9001 feedback_fn("Converting template to drbd")
9002 instance = self.instance
9003 pnode = instance.primary_node
9004 snode = self.op.remote_node
9006 # create a fake disk info for _GenerateDiskTemplate
9007 disk_info = [{"size": d.size, "mode": d.mode} for d in instance.disks]
9008 new_disks = _GenerateDiskTemplate(self, self.op.disk_template,
9009 instance.name, pnode, [snode],
9010 disk_info, None, None, 0)
9011 info = _GetInstanceInfoText(instance)
9012 feedback_fn("Creating aditional volumes...")
9013 # first, create the missing data and meta devices
9014 for disk in new_disks:
9015 # unfortunately this is... not too nice
9016 _CreateSingleBlockDev(self, pnode, instance, disk.children[1],
9018 for child in disk.children:
9019 _CreateSingleBlockDev(self, snode, instance, child, info, True)
9020 # at this stage, all new LVs have been created, we can rename the
9022 feedback_fn("Renaming original volumes...")
9023 rename_list = [(o, n.children[0].logical_id)
9024 for (o, n) in zip(instance.disks, new_disks)]
9025 result = self.rpc.call_blockdev_rename(pnode, rename_list)
9026 result.Raise("Failed to rename original LVs")
9028 feedback_fn("Initializing DRBD devices...")
9029 # all child devices are in place, we can now create the DRBD devices
9030 for disk in new_disks:
9031 for node in [pnode, snode]:
9032 f_create = node == pnode
9033 _CreateSingleBlockDev(self, node, instance, disk, info, f_create)
9035 # at this point, the instance has been modified
9036 instance.disk_template = constants.DT_DRBD8
9037 instance.disks = new_disks
9038 self.cfg.Update(instance, feedback_fn)
9040 # disks are created, waiting for sync
9041 disk_abort = not _WaitForSync(self, instance)
9043 raise errors.OpExecError("There are some degraded disks for"
9044 " this instance, please cleanup manually")
9046 def _ConvertDrbdToPlain(self, feedback_fn):
9047 """Converts an instance from drbd to plain.
9050 instance = self.instance
9051 assert len(instance.secondary_nodes) == 1
9052 pnode = instance.primary_node
9053 snode = instance.secondary_nodes[0]
9054 feedback_fn("Converting template to plain")
9056 old_disks = instance.disks
9057 new_disks = [d.children[0] for d in old_disks]
9059 # copy over size and mode
9060 for parent, child in zip(old_disks, new_disks):
9061 child.size = parent.size
9062 child.mode = parent.mode
9064 # update instance structure
9065 instance.disks = new_disks
9066 instance.disk_template = constants.DT_PLAIN
9067 self.cfg.Update(instance, feedback_fn)
9069 feedback_fn("Removing volumes on the secondary node...")
9070 for disk in old_disks:
9071 self.cfg.SetDiskID(disk, snode)
9072 msg = self.rpc.call_blockdev_remove(snode, disk).fail_msg
9074 self.LogWarning("Could not remove block device %s on node %s,"
9075 " continuing anyway: %s", disk.iv_name, snode, msg)
9077 feedback_fn("Removing unneeded volumes on the primary node...")
9078 for idx, disk in enumerate(old_disks):
9079 meta = disk.children[1]
9080 self.cfg.SetDiskID(meta, pnode)
9081 msg = self.rpc.call_blockdev_remove(pnode, meta).fail_msg
9083 self.LogWarning("Could not remove metadata for disk %d on node %s,"
9084 " continuing anyway: %s", idx, pnode, msg)
9087 def Exec(self, feedback_fn):
9088 """Modifies an instance.
9090 All parameters take effect only at the next restart of the instance.
9093 # Process here the warnings from CheckPrereq, as we don't have a
9094 # feedback_fn there.
9095 for warn in self.warn:
9096 feedback_fn("WARNING: %s" % warn)
9099 instance = self.instance
9101 for disk_op, disk_dict in self.op.disks:
9102 if disk_op == constants.DDM_REMOVE:
9103 # remove the last disk
9104 device = instance.disks.pop()
9105 device_idx = len(instance.disks)
9106 for node, disk in device.ComputeNodeTree(instance.primary_node):
9107 self.cfg.SetDiskID(disk, node)
9108 msg = self.rpc.call_blockdev_remove(node, disk).fail_msg
9110 self.LogWarning("Could not remove disk/%d on node %s: %s,"
9111 " continuing anyway", device_idx, node, msg)
9112 result.append(("disk/%d" % device_idx, "remove"))
9113 elif disk_op == constants.DDM_ADD:
9115 if instance.disk_template == constants.DT_FILE:
9116 file_driver, file_path = instance.disks[0].logical_id
9117 file_path = os.path.dirname(file_path)
9119 file_driver = file_path = None
9120 disk_idx_base = len(instance.disks)
9121 new_disk = _GenerateDiskTemplate(self,
9122 instance.disk_template,
9123 instance.name, instance.primary_node,
9124 instance.secondary_nodes,
9129 instance.disks.append(new_disk)
9130 info = _GetInstanceInfoText(instance)
9132 logging.info("Creating volume %s for instance %s",
9133 new_disk.iv_name, instance.name)
9134 # Note: this needs to be kept in sync with _CreateDisks
9136 for node in instance.all_nodes:
9137 f_create = node == instance.primary_node
9139 _CreateBlockDev(self, node, instance, new_disk,
9140 f_create, info, f_create)
9141 except errors.OpExecError, err:
9142 self.LogWarning("Failed to create volume %s (%s) on"
9144 new_disk.iv_name, new_disk, node, err)
9145 result.append(("disk/%d" % disk_idx_base, "add:size=%s,mode=%s" %
9146 (new_disk.size, new_disk.mode)))
9148 # change a given disk
9149 instance.disks[disk_op].mode = disk_dict['mode']
9150 result.append(("disk.mode/%d" % disk_op, disk_dict['mode']))
9152 if self.op.disk_template:
9153 r_shut = _ShutdownInstanceDisks(self, instance)
9155 raise errors.OpExecError("Cannot shutdow instance disks, unable to"
9156 " proceed with disk template conversion")
9157 mode = (instance.disk_template, self.op.disk_template)
9159 self._DISK_CONVERSIONS[mode](self, feedback_fn)
9161 self.cfg.ReleaseDRBDMinors(instance.name)
9163 result.append(("disk_template", self.op.disk_template))
9166 for nic_op, nic_dict in self.op.nics:
9167 if nic_op == constants.DDM_REMOVE:
9168 # remove the last nic
9169 del instance.nics[-1]
9170 result.append(("nic.%d" % len(instance.nics), "remove"))
9171 elif nic_op == constants.DDM_ADD:
9172 # mac and bridge should be set, by now
9173 mac = nic_dict['mac']
9174 ip = nic_dict.get('ip', None)
9175 nicparams = self.nic_pinst[constants.DDM_ADD]
9176 new_nic = objects.NIC(mac=mac, ip=ip, nicparams=nicparams)
9177 instance.nics.append(new_nic)
9178 result.append(("nic.%d" % (len(instance.nics) - 1),
9179 "add:mac=%s,ip=%s,mode=%s,link=%s" %
9180 (new_nic.mac, new_nic.ip,
9181 self.nic_pnew[constants.DDM_ADD][constants.NIC_MODE],
9182 self.nic_pnew[constants.DDM_ADD][constants.NIC_LINK]
9185 for key in 'mac', 'ip':
9187 setattr(instance.nics[nic_op], key, nic_dict[key])
9188 if nic_op in self.nic_pinst:
9189 instance.nics[nic_op].nicparams = self.nic_pinst[nic_op]
9190 for key, val in nic_dict.iteritems():
9191 result.append(("nic.%s/%d" % (key, nic_op), val))
9194 if self.op.hvparams:
9195 instance.hvparams = self.hv_inst
9196 for key, val in self.op.hvparams.iteritems():
9197 result.append(("hv/%s" % key, val))
9200 if self.op.beparams:
9201 instance.beparams = self.be_inst
9202 for key, val in self.op.beparams.iteritems():
9203 result.append(("be/%s" % key, val))
9207 instance.os = self.op.os_name
9210 if self.op.osparams:
9211 instance.osparams = self.os_inst
9212 for key, val in self.op.osparams.iteritems():
9213 result.append(("os/%s" % key, val))
9215 self.cfg.Update(instance, feedback_fn)
9219 _DISK_CONVERSIONS = {
9220 (constants.DT_PLAIN, constants.DT_DRBD8): _ConvertPlainToDrbd,
9221 (constants.DT_DRBD8, constants.DT_PLAIN): _ConvertDrbdToPlain,
9225 class LUQueryExports(NoHooksLU):
9226 """Query the exports list
9230 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
9231 ("use_locking", False, ht.TBool),
9235 def ExpandNames(self):
9236 self.needed_locks = {}
9237 self.share_locks[locking.LEVEL_NODE] = 1
9238 if not self.op.nodes:
9239 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
9241 self.needed_locks[locking.LEVEL_NODE] = \
9242 _GetWantedNodes(self, self.op.nodes)
9244 def Exec(self, feedback_fn):
9245 """Compute the list of all the exported system images.
9248 @return: a dictionary with the structure node->(export-list)
9249 where export-list is a list of the instances exported on
9253 self.nodes = self.acquired_locks[locking.LEVEL_NODE]
9254 rpcresult = self.rpc.call_export_list(self.nodes)
9256 for node in rpcresult:
9257 if rpcresult[node].fail_msg:
9258 result[node] = False
9260 result[node] = rpcresult[node].payload
9265 class LUPrepareExport(NoHooksLU):
9266 """Prepares an instance for an export and returns useful information.
9271 ("mode", ht.NoDefault, ht.TElemOf(constants.EXPORT_MODES)),
9275 def ExpandNames(self):
9276 self._ExpandAndLockInstance()
9278 def CheckPrereq(self):
9279 """Check prerequisites.
9282 instance_name = self.op.instance_name
9284 self.instance = self.cfg.GetInstanceInfo(instance_name)
9285 assert self.instance is not None, \
9286 "Cannot retrieve locked instance %s" % self.op.instance_name
9287 _CheckNodeOnline(self, self.instance.primary_node)
9289 self._cds = _GetClusterDomainSecret()
9291 def Exec(self, feedback_fn):
9292 """Prepares an instance for an export.
9295 instance = self.instance
9297 if self.op.mode == constants.EXPORT_MODE_REMOTE:
9298 salt = utils.GenerateSecret(8)
9300 feedback_fn("Generating X509 certificate on %s" % instance.primary_node)
9301 result = self.rpc.call_x509_cert_create(instance.primary_node,
9302 constants.RIE_CERT_VALIDITY)
9303 result.Raise("Can't create X509 key and certificate on %s" % result.node)
9305 (name, cert_pem) = result.payload
9307 cert = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM,
9311 "handshake": masterd.instance.ComputeRemoteExportHandshake(self._cds),
9312 "x509_key_name": (name, utils.Sha1Hmac(self._cds, name, salt=salt),
9314 "x509_ca": utils.SignX509Certificate(cert, self._cds, salt),
9320 class LUExportInstance(LogicalUnit):
9321 """Export an instance to an image in the cluster.
9324 HPATH = "instance-export"
9325 HTYPE = constants.HTYPE_INSTANCE
9328 ("target_node", ht.NoDefault, ht.TOr(ht.TNonEmptyString, ht.TList)),
9329 ("shutdown", True, ht.TBool),
9331 ("remove_instance", False, ht.TBool),
9332 ("ignore_remove_failures", False, ht.TBool),
9333 ("mode", constants.EXPORT_MODE_LOCAL, ht.TElemOf(constants.EXPORT_MODES)),
9334 ("x509_key_name", None, ht.TOr(ht.TList, ht.TNone)),
9335 ("destination_x509_ca", None, ht.TMaybeString),
9339 def CheckArguments(self):
9340 """Check the arguments.
9343 self.x509_key_name = self.op.x509_key_name
9344 self.dest_x509_ca_pem = self.op.destination_x509_ca
9346 if self.op.remove_instance and not self.op.shutdown:
9347 raise errors.OpPrereqError("Can not remove instance without shutting it"
9350 if self.op.mode == constants.EXPORT_MODE_REMOTE:
9351 if not self.x509_key_name:
9352 raise errors.OpPrereqError("Missing X509 key name for encryption",
9355 if not self.dest_x509_ca_pem:
9356 raise errors.OpPrereqError("Missing destination X509 CA",
9359 def ExpandNames(self):
9360 self._ExpandAndLockInstance()
9362 # Lock all nodes for local exports
9363 if self.op.mode == constants.EXPORT_MODE_LOCAL:
9364 # FIXME: lock only instance primary and destination node
9366 # Sad but true, for now we have do lock all nodes, as we don't know where
9367 # the previous export might be, and in this LU we search for it and
9368 # remove it from its current node. In the future we could fix this by:
9369 # - making a tasklet to search (share-lock all), then create the
9370 # new one, then one to remove, after
9371 # - removing the removal operation altogether
9372 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
9374 def DeclareLocks(self, level):
9375 """Last minute lock declaration."""
9376 # All nodes are locked anyway, so nothing to do here.
9378 def BuildHooksEnv(self):
9381 This will run on the master, primary node and target node.
9385 "EXPORT_MODE": self.op.mode,
9386 "EXPORT_NODE": self.op.target_node,
9387 "EXPORT_DO_SHUTDOWN": self.op.shutdown,
9388 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
9389 # TODO: Generic function for boolean env variables
9390 "REMOVE_INSTANCE": str(bool(self.op.remove_instance)),
9393 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
9395 nl = [self.cfg.GetMasterNode(), self.instance.primary_node]
9397 if self.op.mode == constants.EXPORT_MODE_LOCAL:
9398 nl.append(self.op.target_node)
9402 def CheckPrereq(self):
9403 """Check prerequisites.
9405 This checks that the instance and node names are valid.
9408 instance_name = self.op.instance_name
9410 self.instance = self.cfg.GetInstanceInfo(instance_name)
9411 assert self.instance is not None, \
9412 "Cannot retrieve locked instance %s" % self.op.instance_name
9413 _CheckNodeOnline(self, self.instance.primary_node)
9415 if self.op.mode == constants.EXPORT_MODE_LOCAL:
9416 self.op.target_node = _ExpandNodeName(self.cfg, self.op.target_node)
9417 self.dst_node = self.cfg.GetNodeInfo(self.op.target_node)
9418 assert self.dst_node is not None
9420 _CheckNodeOnline(self, self.dst_node.name)
9421 _CheckNodeNotDrained(self, self.dst_node.name)
9424 self.dest_disk_info = None
9425 self.dest_x509_ca = None
9427 elif self.op.mode == constants.EXPORT_MODE_REMOTE:
9428 self.dst_node = None
9430 if len(self.op.target_node) != len(self.instance.disks):
9431 raise errors.OpPrereqError(("Received destination information for %s"
9432 " disks, but instance %s has %s disks") %
9433 (len(self.op.target_node), instance_name,
9434 len(self.instance.disks)),
9437 cds = _GetClusterDomainSecret()
9439 # Check X509 key name
9441 (key_name, hmac_digest, hmac_salt) = self.x509_key_name
9442 except (TypeError, ValueError), err:
9443 raise errors.OpPrereqError("Invalid data for X509 key name: %s" % err)
9445 if not utils.VerifySha1Hmac(cds, key_name, hmac_digest, salt=hmac_salt):
9446 raise errors.OpPrereqError("HMAC for X509 key name is wrong",
9449 # Load and verify CA
9451 (cert, _) = utils.LoadSignedX509Certificate(self.dest_x509_ca_pem, cds)
9452 except OpenSSL.crypto.Error, err:
9453 raise errors.OpPrereqError("Unable to load destination X509 CA (%s)" %
9454 (err, ), errors.ECODE_INVAL)
9456 (errcode, msg) = utils.VerifyX509Certificate(cert, None, None)
9457 if errcode is not None:
9458 raise errors.OpPrereqError("Invalid destination X509 CA (%s)" %
9459 (msg, ), errors.ECODE_INVAL)
9461 self.dest_x509_ca = cert
9463 # Verify target information
9465 for idx, disk_data in enumerate(self.op.target_node):
9467 (host, port, magic) = \
9468 masterd.instance.CheckRemoteExportDiskInfo(cds, idx, disk_data)
9469 except errors.GenericError, err:
9470 raise errors.OpPrereqError("Target info for disk %s: %s" %
9471 (idx, err), errors.ECODE_INVAL)
9473 disk_info.append((host, port, magic))
9475 assert len(disk_info) == len(self.op.target_node)
9476 self.dest_disk_info = disk_info
9479 raise errors.ProgrammerError("Unhandled export mode %r" %
9482 # instance disk type verification
9483 # TODO: Implement export support for file-based disks
9484 for disk in self.instance.disks:
9485 if disk.dev_type == constants.LD_FILE:
9486 raise errors.OpPrereqError("Export not supported for instances with"
9487 " file-based disks", errors.ECODE_INVAL)
9489 def _CleanupExports(self, feedback_fn):
9490 """Removes exports of current instance from all other nodes.
9492 If an instance in a cluster with nodes A..D was exported to node C, its
9493 exports will be removed from the nodes A, B and D.
9496 assert self.op.mode != constants.EXPORT_MODE_REMOTE
9498 nodelist = self.cfg.GetNodeList()
9499 nodelist.remove(self.dst_node.name)
9501 # on one-node clusters nodelist will be empty after the removal
9502 # if we proceed the backup would be removed because OpQueryExports
9503 # substitutes an empty list with the full cluster node list.
9504 iname = self.instance.name
9506 feedback_fn("Removing old exports for instance %s" % iname)
9507 exportlist = self.rpc.call_export_list(nodelist)
9508 for node in exportlist:
9509 if exportlist[node].fail_msg:
9511 if iname in exportlist[node].payload:
9512 msg = self.rpc.call_export_remove(node, iname).fail_msg
9514 self.LogWarning("Could not remove older export for instance %s"
9515 " on node %s: %s", iname, node, msg)
9517 def Exec(self, feedback_fn):
9518 """Export an instance to an image in the cluster.
9521 assert self.op.mode in constants.EXPORT_MODES
9523 instance = self.instance
9524 src_node = instance.primary_node
9526 if self.op.shutdown:
9527 # shutdown the instance, but not the disks
9528 feedback_fn("Shutting down instance %s" % instance.name)
9529 result = self.rpc.call_instance_shutdown(src_node, instance,
9530 self.op.shutdown_timeout)
9531 # TODO: Maybe ignore failures if ignore_remove_failures is set
9532 result.Raise("Could not shutdown instance %s on"
9533 " node %s" % (instance.name, src_node))
9535 # set the disks ID correctly since call_instance_start needs the
9536 # correct drbd minor to create the symlinks
9537 for disk in instance.disks:
9538 self.cfg.SetDiskID(disk, src_node)
9540 activate_disks = (not instance.admin_up)
9543 # Activate the instance disks if we'exporting a stopped instance
9544 feedback_fn("Activating disks for %s" % instance.name)
9545 _StartInstanceDisks(self, instance, None)
9548 helper = masterd.instance.ExportInstanceHelper(self, feedback_fn,
9551 helper.CreateSnapshots()
9553 if (self.op.shutdown and instance.admin_up and
9554 not self.op.remove_instance):
9555 assert not activate_disks
9556 feedback_fn("Starting instance %s" % instance.name)
9557 result = self.rpc.call_instance_start(src_node, instance, None, None)
9558 msg = result.fail_msg
9560 feedback_fn("Failed to start instance: %s" % msg)
9561 _ShutdownInstanceDisks(self, instance)
9562 raise errors.OpExecError("Could not start instance: %s" % msg)
9564 if self.op.mode == constants.EXPORT_MODE_LOCAL:
9565 (fin_resu, dresults) = helper.LocalExport(self.dst_node)
9566 elif self.op.mode == constants.EXPORT_MODE_REMOTE:
9567 connect_timeout = constants.RIE_CONNECT_TIMEOUT
9568 timeouts = masterd.instance.ImportExportTimeouts(connect_timeout)
9570 (key_name, _, _) = self.x509_key_name
9573 OpenSSL.crypto.dump_certificate(OpenSSL.crypto.FILETYPE_PEM,
9576 (fin_resu, dresults) = helper.RemoteExport(self.dest_disk_info,
9577 key_name, dest_ca_pem,
9582 # Check for backwards compatibility
9583 assert len(dresults) == len(instance.disks)
9584 assert compat.all(isinstance(i, bool) for i in dresults), \
9585 "Not all results are boolean: %r" % dresults
9589 feedback_fn("Deactivating disks for %s" % instance.name)
9590 _ShutdownInstanceDisks(self, instance)
9592 if not (compat.all(dresults) and fin_resu):
9595 failures.append("export finalization")
9596 if not compat.all(dresults):
9597 fdsk = utils.CommaJoin(idx for (idx, dsk) in enumerate(dresults)
9599 failures.append("disk export: disk(s) %s" % fdsk)
9601 raise errors.OpExecError("Export failed, errors in %s" %
9602 utils.CommaJoin(failures))
9604 # At this point, the export was successful, we can cleanup/finish
9606 # Remove instance if requested
9607 if self.op.remove_instance:
9608 feedback_fn("Removing instance %s" % instance.name)
9609 _RemoveInstance(self, feedback_fn, instance,
9610 self.op.ignore_remove_failures)
9612 if self.op.mode == constants.EXPORT_MODE_LOCAL:
9613 self._CleanupExports(feedback_fn)
9615 return fin_resu, dresults
9618 class LURemoveExport(NoHooksLU):
9619 """Remove exports related to the named instance.
9627 def ExpandNames(self):
9628 self.needed_locks = {}
9629 # We need all nodes to be locked in order for RemoveExport to work, but we
9630 # don't need to lock the instance itself, as nothing will happen to it (and
9631 # we can remove exports also for a removed instance)
9632 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
9634 def Exec(self, feedback_fn):
9635 """Remove any export.
9638 instance_name = self.cfg.ExpandInstanceName(self.op.instance_name)
9639 # If the instance was not found we'll try with the name that was passed in.
9640 # This will only work if it was an FQDN, though.
9642 if not instance_name:
9644 instance_name = self.op.instance_name
9646 locked_nodes = self.acquired_locks[locking.LEVEL_NODE]
9647 exportlist = self.rpc.call_export_list(locked_nodes)
9649 for node in exportlist:
9650 msg = exportlist[node].fail_msg
9652 self.LogWarning("Failed to query node %s (continuing): %s", node, msg)
9654 if instance_name in exportlist[node].payload:
9656 result = self.rpc.call_export_remove(node, instance_name)
9657 msg = result.fail_msg
9659 logging.error("Could not remove export for instance %s"
9660 " on node %s: %s", instance_name, node, msg)
9662 if fqdn_warn and not found:
9663 feedback_fn("Export not found. If trying to remove an export belonging"
9664 " to a deleted instance please use its Fully Qualified"
9668 class TagsLU(NoHooksLU): # pylint: disable-msg=W0223
9671 This is an abstract class which is the parent of all the other tags LUs.
9675 def ExpandNames(self):
9676 self.needed_locks = {}
9677 if self.op.kind == constants.TAG_NODE:
9678 self.op.name = _ExpandNodeName(self.cfg, self.op.name)
9679 self.needed_locks[locking.LEVEL_NODE] = self.op.name
9680 elif self.op.kind == constants.TAG_INSTANCE:
9681 self.op.name = _ExpandInstanceName(self.cfg, self.op.name)
9682 self.needed_locks[locking.LEVEL_INSTANCE] = self.op.name
9684 # FIXME: Acquire BGL for cluster tag operations (as of this writing it's
9685 # not possible to acquire the BGL based on opcode parameters)
9687 def CheckPrereq(self):
9688 """Check prerequisites.
9691 if self.op.kind == constants.TAG_CLUSTER:
9692 self.target = self.cfg.GetClusterInfo()
9693 elif self.op.kind == constants.TAG_NODE:
9694 self.target = self.cfg.GetNodeInfo(self.op.name)
9695 elif self.op.kind == constants.TAG_INSTANCE:
9696 self.target = self.cfg.GetInstanceInfo(self.op.name)
9698 raise errors.OpPrereqError("Wrong tag type requested (%s)" %
9699 str(self.op.kind), errors.ECODE_INVAL)
9702 class LUGetTags(TagsLU):
9703 """Returns the tags of a given object.
9707 ("kind", ht.NoDefault, ht.TElemOf(constants.VALID_TAG_TYPES)),
9708 # Name is only meaningful for nodes and instances
9709 ("name", ht.NoDefault, ht.TMaybeString),
9713 def ExpandNames(self):
9714 TagsLU.ExpandNames(self)
9716 # Share locks as this is only a read operation
9717 self.share_locks = dict.fromkeys(locking.LEVELS, 1)
9719 def Exec(self, feedback_fn):
9720 """Returns the tag list.
9723 return list(self.target.GetTags())
9726 class LUSearchTags(NoHooksLU):
9727 """Searches the tags for a given pattern.
9731 ("pattern", ht.NoDefault, ht.TNonEmptyString),
9735 def ExpandNames(self):
9736 self.needed_locks = {}
9738 def CheckPrereq(self):
9739 """Check prerequisites.
9741 This checks the pattern passed for validity by compiling it.
9745 self.re = re.compile(self.op.pattern)
9746 except re.error, err:
9747 raise errors.OpPrereqError("Invalid search pattern '%s': %s" %
9748 (self.op.pattern, err), errors.ECODE_INVAL)
9750 def Exec(self, feedback_fn):
9751 """Returns the tag list.
9755 tgts = [("/cluster", cfg.GetClusterInfo())]
9756 ilist = cfg.GetAllInstancesInfo().values()
9757 tgts.extend([("/instances/%s" % i.name, i) for i in ilist])
9758 nlist = cfg.GetAllNodesInfo().values()
9759 tgts.extend([("/nodes/%s" % n.name, n) for n in nlist])
9761 for path, target in tgts:
9762 for tag in target.GetTags():
9763 if self.re.search(tag):
9764 results.append((path, tag))
9768 class LUAddTags(TagsLU):
9769 """Sets a tag on a given object.
9773 ("kind", ht.NoDefault, ht.TElemOf(constants.VALID_TAG_TYPES)),
9774 # Name is only meaningful for nodes and instances
9775 ("name", ht.NoDefault, ht.TMaybeString),
9776 ("tags", ht.NoDefault, ht.TListOf(ht.TNonEmptyString)),
9780 def CheckPrereq(self):
9781 """Check prerequisites.
9783 This checks the type and length of the tag name and value.
9786 TagsLU.CheckPrereq(self)
9787 for tag in self.op.tags:
9788 objects.TaggableObject.ValidateTag(tag)
9790 def Exec(self, feedback_fn):
9795 for tag in self.op.tags:
9796 self.target.AddTag(tag)
9797 except errors.TagError, err:
9798 raise errors.OpExecError("Error while setting tag: %s" % str(err))
9799 self.cfg.Update(self.target, feedback_fn)
9802 class LUDelTags(TagsLU):
9803 """Delete a list of tags from a given object.
9807 ("kind", ht.NoDefault, ht.TElemOf(constants.VALID_TAG_TYPES)),
9808 # Name is only meaningful for nodes and instances
9809 ("name", ht.NoDefault, ht.TMaybeString),
9810 ("tags", ht.NoDefault, ht.TListOf(ht.TNonEmptyString)),
9814 def CheckPrereq(self):
9815 """Check prerequisites.
9817 This checks that we have the given tag.
9820 TagsLU.CheckPrereq(self)
9821 for tag in self.op.tags:
9822 objects.TaggableObject.ValidateTag(tag)
9823 del_tags = frozenset(self.op.tags)
9824 cur_tags = self.target.GetTags()
9826 diff_tags = del_tags - cur_tags
9828 diff_names = ("'%s'" % i for i in sorted(diff_tags))
9829 raise errors.OpPrereqError("Tag(s) %s not found" %
9830 (utils.CommaJoin(diff_names), ),
9833 def Exec(self, feedback_fn):
9834 """Remove the tag from the object.
9837 for tag in self.op.tags:
9838 self.target.RemoveTag(tag)
9839 self.cfg.Update(self.target, feedback_fn)
9842 class LUTestDelay(NoHooksLU):
9843 """Sleep for a specified amount of time.
9845 This LU sleeps on the master and/or nodes for a specified amount of
9850 ("duration", ht.NoDefault, ht.TFloat),
9851 ("on_master", True, ht.TBool),
9852 ("on_nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
9853 ("repeat", 0, ht.TPositiveInt)
9857 def ExpandNames(self):
9858 """Expand names and set required locks.
9860 This expands the node list, if any.
9863 self.needed_locks = {}
9864 if self.op.on_nodes:
9865 # _GetWantedNodes can be used here, but is not always appropriate to use
9866 # this way in ExpandNames. Check LogicalUnit.ExpandNames docstring for
9868 self.op.on_nodes = _GetWantedNodes(self, self.op.on_nodes)
9869 self.needed_locks[locking.LEVEL_NODE] = self.op.on_nodes
9871 def _TestDelay(self):
9872 """Do the actual sleep.
9875 if self.op.on_master:
9876 if not utils.TestDelay(self.op.duration):
9877 raise errors.OpExecError("Error during master delay test")
9878 if self.op.on_nodes:
9879 result = self.rpc.call_test_delay(self.op.on_nodes, self.op.duration)
9880 for node, node_result in result.items():
9881 node_result.Raise("Failure during rpc call to node %s" % node)
9883 def Exec(self, feedback_fn):
9884 """Execute the test delay opcode, with the wanted repetitions.
9887 if self.op.repeat == 0:
9890 top_value = self.op.repeat - 1
9891 for i in range(self.op.repeat):
9892 self.LogInfo("Test delay iteration %d/%d" % (i, top_value))
9896 class LUTestJobqueue(NoHooksLU):
9897 """Utility LU to test some aspects of the job queue.
9901 ("notify_waitlock", False, ht.TBool),
9902 ("notify_exec", False, ht.TBool),
9903 ("log_messages", ht.EmptyList, ht.TListOf(ht.TString)),
9904 ("fail", False, ht.TBool),
9908 # Must be lower than default timeout for WaitForJobChange to see whether it
9909 # notices changed jobs
9910 _CLIENT_CONNECT_TIMEOUT = 20.0
9911 _CLIENT_CONFIRM_TIMEOUT = 60.0
9914 def _NotifyUsingSocket(cls, cb, errcls):
9915 """Opens a Unix socket and waits for another program to connect.
9918 @param cb: Callback to send socket name to client
9920 @param errcls: Exception class to use for errors
9923 # Using a temporary directory as there's no easy way to create temporary
9924 # sockets without writing a custom loop around tempfile.mktemp and
9926 tmpdir = tempfile.mkdtemp()
9928 tmpsock = utils.PathJoin(tmpdir, "sock")
9930 logging.debug("Creating temporary socket at %s", tmpsock)
9931 sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
9936 # Send details to client
9939 # Wait for client to connect before continuing
9940 sock.settimeout(cls._CLIENT_CONNECT_TIMEOUT)
9942 (conn, _) = sock.accept()
9943 except socket.error, err:
9944 raise errcls("Client didn't connect in time (%s)" % err)
9948 # Remove as soon as client is connected
9949 shutil.rmtree(tmpdir)
9951 # Wait for client to close
9954 # pylint: disable-msg=E1101
9955 # Instance of '_socketobject' has no ... member
9956 conn.settimeout(cls._CLIENT_CONFIRM_TIMEOUT)
9958 except socket.error, err:
9959 raise errcls("Client failed to confirm notification (%s)" % err)
9963 def _SendNotification(self, test, arg, sockname):
9964 """Sends a notification to the client.
9967 @param test: Test name
9968 @param arg: Test argument (depends on test)
9969 @type sockname: string
9970 @param sockname: Socket path
9973 self.Log(constants.ELOG_JQUEUE_TEST, (sockname, test, arg))
9975 def _Notify(self, prereq, test, arg):
9976 """Notifies the client of a test.
9979 @param prereq: Whether this is a prereq-phase test
9981 @param test: Test name
9982 @param arg: Test argument (depends on test)
9986 errcls = errors.OpPrereqError
9988 errcls = errors.OpExecError
9990 return self._NotifyUsingSocket(compat.partial(self._SendNotification,
9994 def CheckArguments(self):
9995 self.checkargs_calls = getattr(self, "checkargs_calls", 0) + 1
9996 self.expandnames_calls = 0
9998 def ExpandNames(self):
9999 checkargs_calls = getattr(self, "checkargs_calls", 0)
10000 if checkargs_calls < 1:
10001 raise errors.ProgrammerError("CheckArguments was not called")
10003 self.expandnames_calls += 1
10005 if self.op.notify_waitlock:
10006 self._Notify(True, constants.JQT_EXPANDNAMES, None)
10008 self.LogInfo("Expanding names")
10010 # Get lock on master node (just to get a lock, not for a particular reason)
10011 self.needed_locks = {
10012 locking.LEVEL_NODE: self.cfg.GetMasterNode(),
10015 def Exec(self, feedback_fn):
10016 if self.expandnames_calls < 1:
10017 raise errors.ProgrammerError("ExpandNames was not called")
10019 if self.op.notify_exec:
10020 self._Notify(False, constants.JQT_EXEC, None)
10022 self.LogInfo("Executing")
10024 if self.op.log_messages:
10025 self._Notify(False, constants.JQT_STARTMSG, len(self.op.log_messages))
10026 for idx, msg in enumerate(self.op.log_messages):
10027 self.LogInfo("Sending log message %s", idx + 1)
10028 feedback_fn(constants.JQT_MSGPREFIX + msg)
10029 # Report how many test messages have been sent
10030 self._Notify(False, constants.JQT_LOGMSG, idx + 1)
10033 raise errors.OpExecError("Opcode failure was requested")
10038 class IAllocator(object):
10039 """IAllocator framework.
10041 An IAllocator instance has three sets of attributes:
10042 - cfg that is needed to query the cluster
10043 - input data (all members of the _KEYS class attribute are required)
10044 - four buffer attributes (in|out_data|text), that represent the
10045 input (to the external script) in text and data structure format,
10046 and the output from it, again in two formats
10047 - the result variables from the script (success, info, nodes) for
10051 # pylint: disable-msg=R0902
10052 # lots of instance attributes
10054 "name", "mem_size", "disks", "disk_template",
10055 "os", "tags", "nics", "vcpus", "hypervisor",
10058 "name", "relocate_from",
10064 def __init__(self, cfg, rpc, mode, **kwargs):
10067 # init buffer variables
10068 self.in_text = self.out_text = self.in_data = self.out_data = None
10069 # init all input fields so that pylint is happy
10071 self.mem_size = self.disks = self.disk_template = None
10072 self.os = self.tags = self.nics = self.vcpus = None
10073 self.hypervisor = None
10074 self.relocate_from = None
10076 self.evac_nodes = None
10078 self.required_nodes = None
10079 # init result fields
10080 self.success = self.info = self.result = None
10081 if self.mode == constants.IALLOCATOR_MODE_ALLOC:
10082 keyset = self._ALLO_KEYS
10083 fn = self._AddNewInstance
10084 elif self.mode == constants.IALLOCATOR_MODE_RELOC:
10085 keyset = self._RELO_KEYS
10086 fn = self._AddRelocateInstance
10087 elif self.mode == constants.IALLOCATOR_MODE_MEVAC:
10088 keyset = self._EVAC_KEYS
10089 fn = self._AddEvacuateNodes
10091 raise errors.ProgrammerError("Unknown mode '%s' passed to the"
10092 " IAllocator" % self.mode)
10094 if key not in keyset:
10095 raise errors.ProgrammerError("Invalid input parameter '%s' to"
10096 " IAllocator" % key)
10097 setattr(self, key, kwargs[key])
10100 if key not in kwargs:
10101 raise errors.ProgrammerError("Missing input parameter '%s' to"
10102 " IAllocator" % key)
10103 self._BuildInputData(fn)
10105 def _ComputeClusterData(self):
10106 """Compute the generic allocator input data.
10108 This is the data that is independent of the actual operation.
10112 cluster_info = cfg.GetClusterInfo()
10115 "version": constants.IALLOCATOR_VERSION,
10116 "cluster_name": cfg.GetClusterName(),
10117 "cluster_tags": list(cluster_info.GetTags()),
10118 "enabled_hypervisors": list(cluster_info.enabled_hypervisors),
10119 # we don't have job IDs
10121 iinfo = cfg.GetAllInstancesInfo().values()
10122 i_list = [(inst, cluster_info.FillBE(inst)) for inst in iinfo]
10126 node_list = cfg.GetNodeList()
10128 if self.mode == constants.IALLOCATOR_MODE_ALLOC:
10129 hypervisor_name = self.hypervisor
10130 elif self.mode == constants.IALLOCATOR_MODE_RELOC:
10131 hypervisor_name = cfg.GetInstanceInfo(self.name).hypervisor
10132 elif self.mode == constants.IALLOCATOR_MODE_MEVAC:
10133 hypervisor_name = cluster_info.enabled_hypervisors[0]
10135 node_data = self.rpc.call_node_info(node_list, cfg.GetVGName(),
10138 self.rpc.call_all_instances_info(node_list,
10139 cluster_info.enabled_hypervisors)
10140 for nname, nresult in node_data.items():
10141 # first fill in static (config-based) values
10142 ninfo = cfg.GetNodeInfo(nname)
10144 "tags": list(ninfo.GetTags()),
10145 "primary_ip": ninfo.primary_ip,
10146 "secondary_ip": ninfo.secondary_ip,
10147 "offline": ninfo.offline,
10148 "drained": ninfo.drained,
10149 "master_candidate": ninfo.master_candidate,
10152 if not (ninfo.offline or ninfo.drained):
10153 nresult.Raise("Can't get data for node %s" % nname)
10154 node_iinfo[nname].Raise("Can't get node instance info from node %s" %
10156 remote_info = nresult.payload
10158 for attr in ['memory_total', 'memory_free', 'memory_dom0',
10159 'vg_size', 'vg_free', 'cpu_total']:
10160 if attr not in remote_info:
10161 raise errors.OpExecError("Node '%s' didn't return attribute"
10162 " '%s'" % (nname, attr))
10163 if not isinstance(remote_info[attr], int):
10164 raise errors.OpExecError("Node '%s' returned invalid value"
10166 (nname, attr, remote_info[attr]))
10167 # compute memory used by primary instances
10168 i_p_mem = i_p_up_mem = 0
10169 for iinfo, beinfo in i_list:
10170 if iinfo.primary_node == nname:
10171 i_p_mem += beinfo[constants.BE_MEMORY]
10172 if iinfo.name not in node_iinfo[nname].payload:
10175 i_used_mem = int(node_iinfo[nname].payload[iinfo.name]['memory'])
10176 i_mem_diff = beinfo[constants.BE_MEMORY] - i_used_mem
10177 remote_info['memory_free'] -= max(0, i_mem_diff)
10180 i_p_up_mem += beinfo[constants.BE_MEMORY]
10182 # compute memory used by instances
10184 "total_memory": remote_info['memory_total'],
10185 "reserved_memory": remote_info['memory_dom0'],
10186 "free_memory": remote_info['memory_free'],
10187 "total_disk": remote_info['vg_size'],
10188 "free_disk": remote_info['vg_free'],
10189 "total_cpus": remote_info['cpu_total'],
10190 "i_pri_memory": i_p_mem,
10191 "i_pri_up_memory": i_p_up_mem,
10193 pnr.update(pnr_dyn)
10195 node_results[nname] = pnr
10196 data["nodes"] = node_results
10200 for iinfo, beinfo in i_list:
10202 for nic in iinfo.nics:
10203 filled_params = cluster_info.SimpleFillNIC(nic.nicparams)
10204 nic_dict = {"mac": nic.mac,
10206 "mode": filled_params[constants.NIC_MODE],
10207 "link": filled_params[constants.NIC_LINK],
10209 if filled_params[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
10210 nic_dict["bridge"] = filled_params[constants.NIC_LINK]
10211 nic_data.append(nic_dict)
10213 "tags": list(iinfo.GetTags()),
10214 "admin_up": iinfo.admin_up,
10215 "vcpus": beinfo[constants.BE_VCPUS],
10216 "memory": beinfo[constants.BE_MEMORY],
10218 "nodes": [iinfo.primary_node] + list(iinfo.secondary_nodes),
10220 "disks": [{"size": dsk.size, "mode": dsk.mode} for dsk in iinfo.disks],
10221 "disk_template": iinfo.disk_template,
10222 "hypervisor": iinfo.hypervisor,
10224 pir["disk_space_total"] = _ComputeDiskSize(iinfo.disk_template,
10226 instance_data[iinfo.name] = pir
10228 data["instances"] = instance_data
10230 self.in_data = data
10232 def _AddNewInstance(self):
10233 """Add new instance data to allocator structure.
10235 This in combination with _AllocatorGetClusterData will create the
10236 correct structure needed as input for the allocator.
10238 The checks for the completeness of the opcode must have already been
10242 disk_space = _ComputeDiskSize(self.disk_template, self.disks)
10244 if self.disk_template in constants.DTS_NET_MIRROR:
10245 self.required_nodes = 2
10247 self.required_nodes = 1
10250 "disk_template": self.disk_template,
10253 "vcpus": self.vcpus,
10254 "memory": self.mem_size,
10255 "disks": self.disks,
10256 "disk_space_total": disk_space,
10258 "required_nodes": self.required_nodes,
10262 def _AddRelocateInstance(self):
10263 """Add relocate instance data to allocator structure.
10265 This in combination with _IAllocatorGetClusterData will create the
10266 correct structure needed as input for the allocator.
10268 The checks for the completeness of the opcode must have already been
10272 instance = self.cfg.GetInstanceInfo(self.name)
10273 if instance is None:
10274 raise errors.ProgrammerError("Unknown instance '%s' passed to"
10275 " IAllocator" % self.name)
10277 if instance.disk_template not in constants.DTS_NET_MIRROR:
10278 raise errors.OpPrereqError("Can't relocate non-mirrored instances",
10279 errors.ECODE_INVAL)
10281 if len(instance.secondary_nodes) != 1:
10282 raise errors.OpPrereqError("Instance has not exactly one secondary node",
10283 errors.ECODE_STATE)
10285 self.required_nodes = 1
10286 disk_sizes = [{'size': disk.size} for disk in instance.disks]
10287 disk_space = _ComputeDiskSize(instance.disk_template, disk_sizes)
10291 "disk_space_total": disk_space,
10292 "required_nodes": self.required_nodes,
10293 "relocate_from": self.relocate_from,
10297 def _AddEvacuateNodes(self):
10298 """Add evacuate nodes data to allocator structure.
10302 "evac_nodes": self.evac_nodes
10306 def _BuildInputData(self, fn):
10307 """Build input data structures.
10310 self._ComputeClusterData()
10313 request["type"] = self.mode
10314 self.in_data["request"] = request
10316 self.in_text = serializer.Dump(self.in_data)
10318 def Run(self, name, validate=True, call_fn=None):
10319 """Run an instance allocator and return the results.
10322 if call_fn is None:
10323 call_fn = self.rpc.call_iallocator_runner
10325 result = call_fn(self.cfg.GetMasterNode(), name, self.in_text)
10326 result.Raise("Failure while running the iallocator script")
10328 self.out_text = result.payload
10330 self._ValidateResult()
10332 def _ValidateResult(self):
10333 """Process the allocator results.
10335 This will process and if successful save the result in
10336 self.out_data and the other parameters.
10340 rdict = serializer.Load(self.out_text)
10341 except Exception, err:
10342 raise errors.OpExecError("Can't parse iallocator results: %s" % str(err))
10344 if not isinstance(rdict, dict):
10345 raise errors.OpExecError("Can't parse iallocator results: not a dict")
10347 # TODO: remove backwards compatiblity in later versions
10348 if "nodes" in rdict and "result" not in rdict:
10349 rdict["result"] = rdict["nodes"]
10352 for key in "success", "info", "result":
10353 if key not in rdict:
10354 raise errors.OpExecError("Can't parse iallocator results:"
10355 " missing key '%s'" % key)
10356 setattr(self, key, rdict[key])
10358 if not isinstance(rdict["result"], list):
10359 raise errors.OpExecError("Can't parse iallocator results: 'result' key"
10361 self.out_data = rdict
10364 class LUTestAllocator(NoHooksLU):
10365 """Run allocator tests.
10367 This LU runs the allocator tests
10371 ("direction", ht.NoDefault,
10372 ht.TElemOf(constants.VALID_IALLOCATOR_DIRECTIONS)),
10373 ("mode", ht.NoDefault, ht.TElemOf(constants.VALID_IALLOCATOR_MODES)),
10374 ("name", ht.NoDefault, ht.TNonEmptyString),
10375 ("nics", ht.NoDefault, ht.TOr(ht.TNone, ht.TListOf(
10376 ht.TDictOf(ht.TElemOf(["mac", "ip", "bridge"]),
10377 ht.TOr(ht.TNone, ht.TNonEmptyString))))),
10378 ("disks", ht.NoDefault, ht.TOr(ht.TNone, ht.TList)),
10379 ("hypervisor", None, ht.TMaybeString),
10380 ("allocator", None, ht.TMaybeString),
10381 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
10382 ("mem_size", None, ht.TOr(ht.TNone, ht.TPositiveInt)),
10383 ("vcpus", None, ht.TOr(ht.TNone, ht.TPositiveInt)),
10384 ("os", None, ht.TMaybeString),
10385 ("disk_template", None, ht.TMaybeString),
10386 ("evac_nodes", None, ht.TOr(ht.TNone, ht.TListOf(ht.TNonEmptyString))),
10389 def CheckPrereq(self):
10390 """Check prerequisites.
10392 This checks the opcode parameters depending on the director and mode test.
10395 if self.op.mode == constants.IALLOCATOR_MODE_ALLOC:
10396 for attr in ["mem_size", "disks", "disk_template",
10397 "os", "tags", "nics", "vcpus"]:
10398 if not hasattr(self.op, attr):
10399 raise errors.OpPrereqError("Missing attribute '%s' on opcode input" %
10400 attr, errors.ECODE_INVAL)
10401 iname = self.cfg.ExpandInstanceName(self.op.name)
10402 if iname is not None:
10403 raise errors.OpPrereqError("Instance '%s' already in the cluster" %
10404 iname, errors.ECODE_EXISTS)
10405 if not isinstance(self.op.nics, list):
10406 raise errors.OpPrereqError("Invalid parameter 'nics'",
10407 errors.ECODE_INVAL)
10408 if not isinstance(self.op.disks, list):
10409 raise errors.OpPrereqError("Invalid parameter 'disks'",
10410 errors.ECODE_INVAL)
10411 for row in self.op.disks:
10412 if (not isinstance(row, dict) or
10413 "size" not in row or
10414 not isinstance(row["size"], int) or
10415 "mode" not in row or
10416 row["mode"] not in ['r', 'w']):
10417 raise errors.OpPrereqError("Invalid contents of the 'disks'"
10418 " parameter", errors.ECODE_INVAL)
10419 if self.op.hypervisor is None:
10420 self.op.hypervisor = self.cfg.GetHypervisorType()
10421 elif self.op.mode == constants.IALLOCATOR_MODE_RELOC:
10422 fname = _ExpandInstanceName(self.cfg, self.op.name)
10423 self.op.name = fname
10424 self.relocate_from = self.cfg.GetInstanceInfo(fname).secondary_nodes
10425 elif self.op.mode == constants.IALLOCATOR_MODE_MEVAC:
10426 if not hasattr(self.op, "evac_nodes"):
10427 raise errors.OpPrereqError("Missing attribute 'evac_nodes' on"
10428 " opcode input", errors.ECODE_INVAL)
10430 raise errors.OpPrereqError("Invalid test allocator mode '%s'" %
10431 self.op.mode, errors.ECODE_INVAL)
10433 if self.op.direction == constants.IALLOCATOR_DIR_OUT:
10434 if self.op.allocator is None:
10435 raise errors.OpPrereqError("Missing allocator name",
10436 errors.ECODE_INVAL)
10437 elif self.op.direction != constants.IALLOCATOR_DIR_IN:
10438 raise errors.OpPrereqError("Wrong allocator test '%s'" %
10439 self.op.direction, errors.ECODE_INVAL)
10441 def Exec(self, feedback_fn):
10442 """Run the allocator test.
10445 if self.op.mode == constants.IALLOCATOR_MODE_ALLOC:
10446 ial = IAllocator(self.cfg, self.rpc,
10449 mem_size=self.op.mem_size,
10450 disks=self.op.disks,
10451 disk_template=self.op.disk_template,
10455 vcpus=self.op.vcpus,
10456 hypervisor=self.op.hypervisor,
10458 elif self.op.mode == constants.IALLOCATOR_MODE_RELOC:
10459 ial = IAllocator(self.cfg, self.rpc,
10462 relocate_from=list(self.relocate_from),
10464 elif self.op.mode == constants.IALLOCATOR_MODE_MEVAC:
10465 ial = IAllocator(self.cfg, self.rpc,
10467 evac_nodes=self.op.evac_nodes)
10469 raise errors.ProgrammerError("Uncatched mode %s in"
10470 " LUTestAllocator.Exec", self.op.mode)
10472 if self.op.direction == constants.IALLOCATOR_DIR_IN:
10473 result = ial.in_text
10475 ial.Run(self.op.allocator, validate=False)
10476 result = ial.out_text