4 # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Google Inc.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful, but
12 # WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 # General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
24 This module implements the data structures which define the cluster
25 operations - the so-called opcodes.
27 Every operation which modifies the cluster state is expressed via
32 # this are practically structures, so disable the message about too
34 # pylint: disable=R0903
40 from ganeti import constants
41 from ganeti import errors
43 from ganeti import objects
44 from ganeti import objectutils
47 # Common opcode attributes
49 #: output fields for a query operation
50 _POutputFields = ("output_fields", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
51 "Selected output fields")
53 #: the shutdown timeout
55 ("shutdown_timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT, ht.TNonNegativeInt,
56 "How long to wait for instance to shut down")
58 #: the force parameter
59 _PForce = ("force", False, ht.TBool, "Whether to force the operation")
61 #: a required instance name (for single-instance LUs)
62 _PInstanceName = ("instance_name", ht.NoDefault, ht.TNonEmptyString,
65 #: Whether to ignore offline nodes
66 _PIgnoreOfflineNodes = ("ignore_offline_nodes", False, ht.TBool,
67 "Whether to ignore offline nodes")
69 #: a required node name (for single-node LUs)
70 _PNodeName = ("node_name", ht.NoDefault, ht.TNonEmptyString, "Node name")
72 #: a required node group name (for single-group LUs)
73 _PGroupName = ("group_name", ht.NoDefault, ht.TNonEmptyString, "Group name")
75 #: Migration type (live/non-live)
76 _PMigrationMode = ("mode", None,
77 ht.TMaybe(ht.TElemOf(constants.HT_MIGRATION_MODES)),
80 #: Obsolete 'live' migration mode (boolean)
81 _PMigrationLive = ("live", None, ht.TMaybeBool,
82 "Legacy setting for live migration, do not use")
85 _PTagKind = ("kind", ht.NoDefault, ht.TElemOf(constants.VALID_TAG_TYPES),
88 #: List of tag strings
89 _PTags = ("tags", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
92 _PForceVariant = ("force_variant", False, ht.TBool,
93 "Whether to force an unknown OS variant")
95 _PWaitForSync = ("wait_for_sync", True, ht.TBool,
96 "Whether to wait for the disk to synchronize")
98 _PWaitForSyncFalse = ("wait_for_sync", False, ht.TBool,
99 "Whether to wait for the disk to synchronize"
100 " (defaults to false)")
102 _PIgnoreConsistency = ("ignore_consistency", False, ht.TBool,
103 "Whether to ignore disk consistency")
105 _PStorageName = ("name", ht.NoDefault, ht.TMaybeString, "Storage name")
107 _PUseLocking = ("use_locking", False, ht.TBool,
108 "Whether to use synchronization")
110 _PNameCheck = ("name_check", True, ht.TBool, "Whether to check name")
112 _PNodeGroupAllocPolicy = \
113 ("alloc_policy", None,
114 ht.TMaybe(ht.TElemOf(constants.VALID_ALLOC_POLICIES)),
115 "Instance allocation policy")
117 _PGroupNodeParams = ("ndparams", None, ht.TMaybeDict,
118 "Default node parameters for group")
120 _PQueryWhat = ("what", ht.NoDefault, ht.TElemOf(constants.QR_VIA_OP),
121 "Resource(s) to query for")
123 _PEarlyRelease = ("early_release", False, ht.TBool,
124 "Whether to release locks as soon as possible")
126 _PIpCheckDoc = "Whether to ensure instance's IP address is inactive"
128 #: Do not remember instance state changes
129 _PNoRemember = ("no_remember", False, ht.TBool,
130 "Do not remember the state change")
132 #: Target node for instance migration/failover
133 _PMigrationTargetNode = ("target_node", None, ht.TMaybeString,
134 "Target node for shared-storage instances")
136 _PStartupPaused = ("startup_paused", False, ht.TBool,
137 "Pause instance at startup")
139 _PVerbose = ("verbose", False, ht.TBool, "Verbose mode")
141 # Parameters for cluster verification
142 _PDebugSimulateErrors = ("debug_simulate_errors", False, ht.TBool,
143 "Whether to simulate errors (useful for debugging)")
144 _PErrorCodes = ("error_codes", False, ht.TBool, "Error codes")
145 _PSkipChecks = ("skip_checks", ht.EmptyList,
146 ht.TListOf(ht.TElemOf(constants.VERIFY_OPTIONAL_CHECKS)),
147 "Which checks to skip")
148 _PIgnoreErrors = ("ignore_errors", ht.EmptyList,
149 ht.TListOf(ht.TElemOf(constants.CV_ALL_ECODES_STRINGS)),
150 "List of error codes that should be treated as warnings")
155 ht.TMaybe(ht.TDictOf(ht.TElemOf(constants.DISK_TEMPLATES), ht.TDict)),
156 "Disk templates' parameter defaults")
158 # Parameters for node resource model
159 _PHvState = ("hv_state", None, ht.TMaybeDict, "Set hypervisor states")
160 _PDiskState = ("disk_state", None, ht.TMaybeDict, "Set disk states")
163 _PIgnoreIpolicy = ("ignore_ipolicy", False, ht.TBool,
164 "Whether to ignore ipolicy violations")
166 # Allow runtime changes while migrating
167 _PAllowRuntimeChgs = ("allow_runtime_changes", True, ht.TBool,
168 "Allow runtime changes (eg. memory ballooning)")
170 #: IAllocator field builder
171 _PIAllocFromDesc = lambda desc: ("iallocator", None, ht.TMaybeString, desc)
173 #: a required network name
174 _PNetworkName = ("network_name", ht.NoDefault, ht.TNonEmptyString,
177 #: OP_ID conversion regular expression
178 _OPID_RE = re.compile("([a-z])([A-Z])")
180 #: Utility function for L{OpClusterSetParams}
181 _TestClusterOsListItem = \
182 ht.TAnd(ht.TIsLength(2), ht.TItems([
183 ht.TElemOf(constants.DDMS_VALUES),
187 _TestClusterOsList = ht.TMaybeListOf(_TestClusterOsListItem)
189 # TODO: Generate check from constants.INIC_PARAMS_TYPES
190 #: Utility function for testing NIC definitions
192 ht.Comment("NIC parameters")(ht.TDictOf(ht.TElemOf(constants.INIC_PARAMS),
195 _TSetParamsResultItemItems = [
196 ht.Comment("name of changed parameter")(ht.TNonEmptyString),
197 ht.Comment("new value")(ht.TAny),
200 _TSetParamsResult = \
201 ht.TListOf(ht.TAnd(ht.TIsLength(len(_TSetParamsResultItemItems)),
202 ht.TItems(_TSetParamsResultItemItems)))
204 # TODO: Generate check from constants.IDISK_PARAMS_TYPES (however, not all users
205 # of this check support all parameters)
207 ht.Comment("Disk parameters")(ht.TDictOf(ht.TElemOf(constants.IDISK_PARAMS),
208 ht.TOr(ht.TNonEmptyString, ht.TInt)))
211 ht.TListOf(ht.TAnd(ht.TIsLength(2),
212 ht.TItems([ht.TElemOf(constants.RS_ALL),
215 _TQueryResult = ht.TListOf(_TQueryRow)
217 _TOldQueryRow = ht.TListOf(ht.TAny)
219 _TOldQueryResult = ht.TListOf(_TOldQueryRow)
229 #: Attribute name for dependencies
230 DEPEND_ATTR = "depends"
232 #: Attribute name for comment
233 COMMENT_ATTR = "comment"
237 """Convert an opcode class name to an OP_ID.
240 @param name: the class name, as OpXxxYyy
242 @return: the name in the OP_XXXX_YYYY format
245 if not name.startswith("Op"):
247 # Note: (?<=[a-z])(?=[A-Z]) would be ideal, since it wouldn't
248 # consume any input, and hence we would just have all the elements
249 # in the list, one by one; but it seems that split doesn't work on
250 # non-consuming input, hence we have to process the input string a
252 name = _OPID_RE.sub(r"\1,\2", name)
253 elems = name.split(",")
254 return "_".join(n.upper() for n in elems)
257 def _GenerateObjectTypeCheck(obj, fields_types):
258 """Helper to generate type checks for objects.
260 @param obj: The object to generate type checks
261 @param fields_types: The fields and their types as a dict
262 @return: A ht type check function
265 assert set(obj.GetAllSlots()) == set(fields_types.keys()), \
266 "%s != %s" % (set(obj.GetAllSlots()), set(fields_types.keys()))
267 return ht.TStrictDict(True, True, fields_types)
271 _GenerateObjectTypeCheck(objects.QueryFieldDefinition, {
272 "name": ht.TNonEmptyString,
273 "title": ht.TNonEmptyString,
274 "kind": ht.TElemOf(constants.QFT_ALL),
275 "doc": ht.TNonEmptyString,
279 def RequireFileStorage():
280 """Checks that file storage is enabled.
282 While it doesn't really fit into this module, L{utils} was deemed too large
283 of a dependency to be imported for just one or two functions.
285 @raise errors.OpPrereqError: when file storage is disabled
288 if not constants.ENABLE_FILE_STORAGE:
289 raise errors.OpPrereqError("File storage disabled at configure time",
293 def RequireSharedFileStorage():
294 """Checks that shared file storage is enabled.
296 While it doesn't really fit into this module, L{utils} was deemed too large
297 of a dependency to be imported for just one or two functions.
299 @raise errors.OpPrereqError: when shared file storage is disabled
302 if not constants.ENABLE_SHARED_FILE_STORAGE:
303 raise errors.OpPrereqError("Shared file storage disabled at"
304 " configure time", errors.ECODE_INVAL)
307 @ht.WithDesc("CheckFileStorage")
308 def _CheckFileStorage(value):
309 """Ensures file storage is enabled if used.
312 if value == constants.DT_FILE:
314 elif value == constants.DT_SHARED_FILE:
315 RequireSharedFileStorage()
319 def _BuildDiskTemplateCheck(accept_none):
320 """Builds check for disk template.
322 @type accept_none: bool
323 @param accept_none: whether to accept None as a correct value
327 template_check = ht.TElemOf(constants.DISK_TEMPLATES)
330 template_check = ht.TMaybe(template_check)
332 return ht.TAnd(template_check, _CheckFileStorage)
335 def _CheckStorageType(storage_type):
336 """Ensure a given storage type is valid.
339 if storage_type not in constants.VALID_STORAGE_TYPES:
340 raise errors.OpPrereqError("Unknown storage type: %s" % storage_type,
342 if storage_type == constants.ST_FILE:
343 # TODO: What about shared file storage?
348 #: Storage type parameter
349 _PStorageType = ("storage_type", ht.NoDefault, _CheckStorageType,
352 _CheckNetworkType = ht.TElemOf(constants.NETWORK_VALID_TYPES)
355 @ht.WithDesc("IPv4 network")
356 def _CheckCIDRNetNotation(value):
357 """Ensure a given CIDR notation type is valid.
361 ipaddr.IPv4Network(value)
362 except ipaddr.AddressValueError:
367 @ht.WithDesc("IPv4 address")
368 def _CheckCIDRAddrNotation(value):
369 """Ensure a given CIDR notation type is valid.
373 ipaddr.IPv4Address(value)
374 except ipaddr.AddressValueError:
379 @ht.WithDesc("IPv6 address")
380 def _CheckCIDR6AddrNotation(value):
381 """Ensure a given CIDR notation type is valid.
385 ipaddr.IPv6Address(value)
386 except ipaddr.AddressValueError:
391 @ht.WithDesc("IPv6 network")
392 def _CheckCIDR6NetNotation(value):
393 """Ensure a given CIDR notation type is valid.
397 ipaddr.IPv6Network(value)
398 except ipaddr.AddressValueError:
403 _TIpAddress4 = ht.TAnd(ht.TString, _CheckCIDRAddrNotation)
404 _TIpAddress6 = ht.TAnd(ht.TString, _CheckCIDR6AddrNotation)
405 _TIpNetwork4 = ht.TAnd(ht.TString, _CheckCIDRNetNotation)
406 _TIpNetwork6 = ht.TAnd(ht.TString, _CheckCIDR6NetNotation)
407 _TMaybeAddr4List = ht.TMaybe(ht.TListOf(_TIpAddress4))
410 class _AutoOpParamSlots(objectutils.AutoSlots):
411 """Meta class for opcode definitions.
414 def __new__(mcs, name, bases, attrs):
415 """Called when a class should be created.
417 @param mcs: The meta class
418 @param name: Name of created class
419 @param bases: Base classes
421 @param attrs: Class attributes
424 assert "OP_ID" not in attrs, "Class '%s' defining OP_ID" % name
426 slots = mcs._GetSlots(attrs)
427 assert "OP_DSC_FIELD" not in attrs or attrs["OP_DSC_FIELD"] in slots, \
428 "Class '%s' uses unknown field in OP_DSC_FIELD" % name
430 attrs["OP_ID"] = _NameToId(name)
432 return objectutils.AutoSlots.__new__(mcs, name, bases, attrs)
435 def _GetSlots(mcs, attrs):
436 """Build the slots out of OP_PARAMS.
439 # Always set OP_PARAMS to avoid duplicates in BaseOpCode.GetAllParams
440 params = attrs.setdefault("OP_PARAMS", [])
442 # Use parameter names as slots
443 return [pname for (pname, _, _, _) in params]
446 class BaseOpCode(objectutils.ValidatedSlots):
447 """A simple serializable object.
449 This object serves as a parent class for OpCode without any custom
453 # pylint: disable=E1101
454 # as OP_ID is dynamically defined
455 __metaclass__ = _AutoOpParamSlots
457 def __getstate__(self):
458 """Generic serializer.
460 This method just returns the contents of the instance as a
464 @return: the instance attributes and their values
468 for name in self.GetAllSlots():
469 if hasattr(self, name):
470 state[name] = getattr(self, name)
473 def __setstate__(self, state):
474 """Generic unserializer.
476 This method just restores from the serialized state the attributes
477 of the current instance.
479 @param state: the serialized opcode data
483 if not isinstance(state, dict):
484 raise ValueError("Invalid data to __setstate__: expected dict, got %s" %
487 for name in self.GetAllSlots():
488 if name not in state and hasattr(self, name):
492 setattr(self, name, state[name])
495 def GetAllParams(cls):
496 """Compute list of all parameters for an opcode.
500 for parent in cls.__mro__:
501 slots.extend(getattr(parent, "OP_PARAMS", []))
504 def Validate(self, set_defaults): # pylint: disable=W0221
505 """Validate opcode parameters, optionally setting default values.
507 @type set_defaults: bool
508 @param set_defaults: Whether to set default values
509 @raise errors.OpPrereqError: When a parameter value doesn't match
513 for (attr_name, default, test, _) in self.GetAllParams():
514 assert test == ht.NoType or callable(test)
516 if not hasattr(self, attr_name):
517 if default == ht.NoDefault:
518 raise errors.OpPrereqError("Required parameter '%s.%s' missing" %
519 (self.OP_ID, attr_name),
522 if callable(default):
526 setattr(self, attr_name, dval)
528 if test == ht.NoType:
532 if set_defaults or hasattr(self, attr_name):
533 attr_val = getattr(self, attr_name)
534 if not test(attr_val):
535 logging.error("OpCode %s, parameter %s, has invalid type %s/value"
536 " '%s' expecting type %s",
537 self.OP_ID, attr_name, type(attr_val), attr_val, test)
538 raise errors.OpPrereqError("Parameter '%s.%s' fails validation" %
539 (self.OP_ID, attr_name),
543 def _BuildJobDepCheck(relative):
544 """Builds check for job dependencies (L{DEPEND_ATTR}).
547 @param relative: Whether to accept relative job IDs (negative)
552 job_id = ht.TOr(ht.TJobId, ht.TRelativeJobId)
557 ht.TAnd(ht.TIsLength(2),
559 ht.TListOf(ht.TElemOf(constants.JOBS_FINALIZED))]))
561 return ht.TMaybeListOf(job_dep)
564 TNoRelativeJobDependencies = _BuildJobDepCheck(False)
566 #: List of submission status and job ID as returned by C{SubmitManyJobs}
568 ht.TAnd(ht.TIsLength(2),
569 ht.TItems([ht.Comment("success")(ht.TBool),
570 ht.Comment("Job ID if successful, error message"
571 " otherwise")(ht.TOr(ht.TString,
573 TJobIdList = ht.TListOf(_TJobIdListItem)
575 #: Result containing only list of submitted jobs
576 TJobIdListOnly = ht.TStrictDict(True, True, {
577 constants.JOB_IDS_KEY: ht.Comment("List of submitted jobs")(TJobIdList),
581 class OpCode(BaseOpCode):
584 This is the root of the actual OpCode hierarchy. All clases derived
585 from this class should override OP_ID.
587 @cvar OP_ID: The ID of this opcode. This should be unique amongst all
588 children of this class.
589 @cvar OP_DSC_FIELD: The name of a field whose value will be included in the
590 string returned by Summary(); see the docstring of that
592 @cvar OP_PARAMS: List of opcode attributes, the default values they should
593 get if not already defined, and types they must match.
594 @cvar OP_RESULT: Callable to verify opcode result
595 @cvar WITH_LU: Boolean that specifies whether this should be included in
596 mcpu's dispatch table
597 @ivar dry_run: Whether the LU should be run in dry-run mode, i.e. just
599 @ivar priority: Opcode priority for queue
602 # pylint: disable=E1101
603 # as OP_ID is dynamically defined
606 ("dry_run", None, ht.TMaybeBool, "Run checks only, don't execute"),
607 ("debug_level", None, ht.TMaybe(ht.TNonNegativeInt), "Debug level"),
608 ("priority", constants.OP_PRIO_DEFAULT,
609 ht.TElemOf(constants.OP_PRIO_SUBMIT_VALID), "Opcode priority"),
610 (DEPEND_ATTR, None, _BuildJobDepCheck(True),
611 "Job dependencies; if used through ``SubmitManyJobs`` relative (negative)"
612 " job IDs can be used; see :doc:`design document <design-chained-jobs>`"
614 (COMMENT_ATTR, None, ht.TMaybeString,
615 "Comment describing the purpose of the opcode"),
619 def __getstate__(self):
620 """Specialized getstate for opcodes.
622 This method adds to the state dictionary the OP_ID of the class,
623 so that on unload we can identify the correct class for
624 instantiating the opcode.
627 @return: the state as a dictionary
630 data = BaseOpCode.__getstate__(self)
631 data["OP_ID"] = self.OP_ID
635 def LoadOpCode(cls, data):
636 """Generic load opcode method.
638 The method identifies the correct opcode class from the dict-form
639 by looking for a OP_ID key, if this is not found, or its value is
640 not available in this module as a child of this class, we fail.
643 @param data: the serialized opcode
646 if not isinstance(data, dict):
647 raise ValueError("Invalid data to LoadOpCode (%s)" % type(data))
648 if "OP_ID" not in data:
649 raise ValueError("Invalid data to LoadOpcode, missing OP_ID")
650 op_id = data["OP_ID"]
652 if op_id in OP_MAPPING:
653 op_class = OP_MAPPING[op_id]
655 raise ValueError("Invalid data to LoadOpCode: OP_ID %s unsupported" %
658 new_data = data.copy()
659 del new_data["OP_ID"]
660 op.__setstate__(new_data)
664 """Generates a summary description of this opcode.
666 The summary is the value of the OP_ID attribute (without the "OP_"
667 prefix), plus the value of the OP_DSC_FIELD attribute, if one was
668 defined; this field should allow to easily identify the operation
669 (for an instance creation job, e.g., it would be the instance
673 assert self.OP_ID is not None and len(self.OP_ID) > 3
674 # all OP_ID start with OP_, we remove that
676 field_name = getattr(self, "OP_DSC_FIELD", None)
678 field_value = getattr(self, field_name, None)
679 if isinstance(field_value, (list, tuple)):
680 field_value = ",".join(str(i) for i in field_value)
681 txt = "%s(%s)" % (txt, field_value)
684 def TinySummary(self):
685 """Generates a compact summary description of the opcode.
688 assert self.OP_ID.startswith("OP_")
690 text = self.OP_ID[3:]
692 for (prefix, supplement) in _SUMMARY_PREFIX.items():
693 if text.startswith(prefix):
694 return supplement + text[len(prefix):]
701 class OpClusterPostInit(OpCode):
702 """Post cluster initialization.
704 This opcode does not touch the cluster at all. Its purpose is to run hooks
705 after the cluster has been initialized.
711 class OpClusterDestroy(OpCode):
712 """Destroy the cluster.
714 This opcode has no other parameters. All the state is irreversibly
715 lost after the execution of this opcode.
718 OP_RESULT = ht.TNonEmptyString
721 class OpClusterQuery(OpCode):
722 """Query cluster information."""
723 OP_RESULT = ht.TDictOf(ht.TNonEmptyString, ht.TAny)
726 class OpClusterVerify(OpCode):
727 """Submits all jobs necessary to verify the cluster.
731 _PDebugSimulateErrors,
736 ("group_name", None, ht.TMaybeString, "Group to verify"),
738 OP_RESULT = TJobIdListOnly
741 class OpClusterVerifyConfig(OpCode):
742 """Verify the cluster config.
746 _PDebugSimulateErrors,
754 class OpClusterVerifyGroup(OpCode):
755 """Run verify on a node group from the cluster.
757 @type skip_checks: C{list}
758 @ivar skip_checks: steps to be skipped from the verify process; this
759 needs to be a subset of
760 L{constants.VERIFY_OPTIONAL_CHECKS}; currently
761 only L{constants.VERIFY_NPLUSONE_MEM} can be passed
764 OP_DSC_FIELD = "group_name"
767 _PDebugSimulateErrors,
776 class OpClusterVerifyDisks(OpCode):
777 """Verify the cluster disks.
780 OP_RESULT = TJobIdListOnly
783 class OpGroupVerifyDisks(OpCode):
784 """Verifies the status of all disks in a node group.
786 Result: a tuple of three elements:
787 - dict of node names with issues (values: error msg)
788 - list of instances with degraded disks (that should be activated)
789 - dict of instances with missing logical volumes (values: (node, vol)
790 pairs with details about the missing volumes)
792 In normal operation, all lists should be empty. A non-empty instance
793 list (3rd element of the result) is still ok (errors were fixed) but
794 non-empty node list means some node is down, and probably there are
795 unfixable drbd errors.
797 Note that only instances that are drbd-based are taken into
798 consideration. This might need to be revisited in the future.
801 OP_DSC_FIELD = "group_name"
806 ht.TAnd(ht.TIsLength(3),
807 ht.TItems([ht.TDictOf(ht.TString, ht.TString),
808 ht.TListOf(ht.TString),
809 ht.TDictOf(ht.TString,
810 ht.TListOf(ht.TListOf(ht.TString)))]))
813 class OpClusterRepairDiskSizes(OpCode):
814 """Verify the disk sizes of the instances and fixes configuration
817 Parameters: optional instances list, in case we want to restrict the
818 checks to only a subset of the instances.
820 Result: a list of tuples, (instance, disk, new-size) for changed
823 In normal operation, the list should be empty.
825 @type instances: list
826 @ivar instances: the list of instances to check, or empty for all instances
830 ("instances", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None),
832 OP_RESULT = ht.TListOf(ht.TAnd(ht.TIsLength(3),
833 ht.TItems([ht.TNonEmptyString,
835 ht.TNonNegativeInt])))
838 class OpClusterConfigQuery(OpCode):
839 """Query cluster configuration values."""
843 OP_RESULT = ht.TListOf(ht.TAny)
846 class OpClusterRename(OpCode):
847 """Rename the cluster.
850 @ivar name: The new name of the cluster. The name and/or the master IP
851 address will be changed to match the new name and its IP
855 OP_DSC_FIELD = "name"
857 ("name", ht.NoDefault, ht.TNonEmptyString, None),
859 OP_RESULT = ht.TNonEmptyString
862 class OpClusterSetParams(OpCode):
863 """Change the parameters of the cluster.
865 @type vg_name: C{str} or C{None}
866 @ivar vg_name: The new volume group name or None to disable LVM usage.
872 ("vg_name", None, ht.TMaybe(ht.TString), "Volume group name"),
873 ("enabled_hypervisors", None,
874 ht.TMaybe(ht.TAnd(ht.TListOf(ht.TElemOf(constants.HYPER_TYPES)),
876 "List of enabled hypervisors"),
878 ht.TMaybe(ht.TDictOf(ht.TNonEmptyString, ht.TDict)),
879 "Cluster-wide hypervisor parameter defaults, hypervisor-dependent"),
880 ("beparams", None, ht.TMaybeDict,
881 "Cluster-wide backend parameter defaults"),
882 ("os_hvp", None, ht.TMaybe(ht.TDictOf(ht.TNonEmptyString, ht.TDict)),
883 "Cluster-wide per-OS hypervisor parameter defaults"),
885 ht.TMaybe(ht.TDictOf(ht.TNonEmptyString, ht.TDict)),
886 "Cluster-wide OS parameter defaults"),
888 ("candidate_pool_size", None, ht.TMaybe(ht.TPositiveInt),
889 "Master candidate pool size"),
890 ("uid_pool", None, ht.NoType,
891 "Set UID pool, must be list of lists describing UID ranges (two items,"
892 " start and end inclusive)"),
893 ("add_uids", None, ht.NoType,
894 "Extend UID pool, must be list of lists describing UID ranges (two"
895 " items, start and end inclusive) to be added"),
896 ("remove_uids", None, ht.NoType,
897 "Shrink UID pool, must be list of lists describing UID ranges (two"
898 " items, start and end inclusive) to be removed"),
899 ("maintain_node_health", None, ht.TMaybeBool,
900 "Whether to automatically maintain node health"),
901 ("prealloc_wipe_disks", None, ht.TMaybeBool,
902 "Whether to wipe disks before allocating them to instances"),
903 ("nicparams", None, ht.TMaybeDict, "Cluster-wide NIC parameter defaults"),
904 ("ndparams", None, ht.TMaybeDict, "Cluster-wide node parameter defaults"),
905 ("ipolicy", None, ht.TMaybeDict,
906 "Cluster-wide :ref:`instance policy <rapi-ipolicy>` specs"),
907 ("drbd_helper", None, ht.TMaybe(ht.TString), "DRBD helper program"),
908 ("default_iallocator", None, ht.TMaybe(ht.TString),
909 "Default iallocator for cluster"),
910 ("master_netdev", None, ht.TMaybe(ht.TString),
911 "Master network device"),
912 ("master_netmask", None, ht.TMaybe(ht.TNonNegativeInt),
913 "Netmask of the master IP"),
914 ("reserved_lvs", None, ht.TMaybeListOf(ht.TNonEmptyString),
915 "List of reserved LVs"),
916 ("hidden_os", None, _TestClusterOsList,
917 "Modify list of hidden operating systems: each modification must have"
918 " two items, the operation and the OS name; the operation can be"
919 " ``%s`` or ``%s``" % (constants.DDM_ADD, constants.DDM_REMOVE)),
920 ("blacklisted_os", None, _TestClusterOsList,
921 "Modify list of blacklisted operating systems: each modification must"
922 " have two items, the operation and the OS name; the operation can be"
923 " ``%s`` or ``%s``" % (constants.DDM_ADD, constants.DDM_REMOVE)),
924 ("use_external_mip_script", None, ht.TMaybeBool,
925 "Whether to use an external master IP address setup script"),
930 class OpClusterRedistConf(OpCode):
931 """Force a full push of the cluster configuration.
937 class OpClusterActivateMasterIp(OpCode):
938 """Activate the master IP on the master node.
944 class OpClusterDeactivateMasterIp(OpCode):
945 """Deactivate the master IP on the master node.
951 class OpQuery(OpCode):
952 """Query for resources/items.
954 @ivar what: Resources to query for, must be one of L{constants.QR_VIA_OP}
955 @ivar fields: List of fields to retrieve
956 @ivar qfilter: Query filter
959 OP_DSC_FIELD = "what"
963 ("fields", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
965 ("qfilter", None, ht.TMaybe(ht.TList),
969 _GenerateObjectTypeCheck(objects.QueryResponse, {
970 "fields": ht.TListOf(_TQueryFieldDef),
971 "data": _TQueryResult,
975 class OpQueryFields(OpCode):
976 """Query for available resource/item fields.
978 @ivar what: Resources to query for, must be one of L{constants.QR_VIA_OP}
979 @ivar fields: List of fields to retrieve
982 OP_DSC_FIELD = "what"
985 ("fields", None, ht.TMaybeListOf(ht.TNonEmptyString),
986 "Requested fields; if not given, all are returned"),
989 _GenerateObjectTypeCheck(objects.QueryFieldsResponse, {
990 "fields": ht.TListOf(_TQueryFieldDef),
994 class OpOobCommand(OpCode):
995 """Interact with OOB."""
997 ("node_names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
998 "List of nodes to run the OOB command against"),
999 ("command", ht.NoDefault, ht.TElemOf(constants.OOB_COMMANDS),
1000 "OOB command to be run"),
1001 ("timeout", constants.OOB_TIMEOUT, ht.TInt,
1002 "Timeout before the OOB helper will be terminated"),
1003 ("ignore_status", False, ht.TBool,
1004 "Ignores the node offline status for power off"),
1005 ("power_delay", constants.OOB_POWER_DELAY, ht.TNonNegativeFloat,
1006 "Time in seconds to wait between powering on nodes"),
1008 # Fixme: Make it more specific with all the special cases in LUOobCommand
1009 OP_RESULT = _TQueryResult
1012 class OpRestrictedCommand(OpCode):
1013 """Runs a restricted command on node(s).
1018 ("nodes", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
1019 "Nodes on which the command should be run (at least one)"),
1020 ("command", ht.NoDefault, ht.TNonEmptyString,
1021 "Command name (no parameters)"),
1025 ht.Comment("success")(ht.TBool),
1026 ht.Comment("output or error message")(ht.TString),
1030 ht.TListOf(ht.TAnd(ht.TIsLength(len(_RESULT_ITEMS)),
1031 ht.TItems(_RESULT_ITEMS)))
1036 class OpNodeRemove(OpCode):
1039 @type node_name: C{str}
1040 @ivar node_name: The name of the node to remove. If the node still has
1041 instances on it, the operation will fail.
1044 OP_DSC_FIELD = "node_name"
1048 OP_RESULT = ht.TNone
1051 class OpNodeAdd(OpCode):
1052 """Add a node to the cluster.
1054 @type node_name: C{str}
1055 @ivar node_name: The name of the node to add. This can be a short name,
1056 but it will be expanded to the FQDN.
1057 @type primary_ip: IP address
1058 @ivar primary_ip: The primary IP of the node. This will be ignored when the
1059 opcode is submitted, but will be filled during the node
1060 add (so it will be visible in the job query).
1061 @type secondary_ip: IP address
1062 @ivar secondary_ip: The secondary IP of the node. This needs to be passed
1063 if the cluster has been initialized in 'dual-network'
1064 mode, otherwise it must not be given.
1065 @type readd: C{bool}
1066 @ivar readd: Whether to re-add an existing node to the cluster. If
1067 this is not passed, then the operation will abort if the node
1068 name is already in the cluster; use this parameter to 'repair'
1069 a node that had its configuration broken, or was reinstalled
1070 without removal from the cluster.
1072 @ivar group: The node group to which this node will belong.
1073 @type vm_capable: C{bool}
1074 @ivar vm_capable: The vm_capable node attribute
1075 @type master_capable: C{bool}
1076 @ivar master_capable: The master_capable node attribute
1079 OP_DSC_FIELD = "node_name"
1084 ("primary_ip", None, ht.NoType, "Primary IP address"),
1085 ("secondary_ip", None, ht.TMaybeString, "Secondary IP address"),
1086 ("readd", False, ht.TBool, "Whether node is re-added to cluster"),
1087 ("group", None, ht.TMaybeString, "Initial node group"),
1088 ("master_capable", None, ht.TMaybeBool,
1089 "Whether node can become master or master candidate"),
1090 ("vm_capable", None, ht.TMaybeBool,
1091 "Whether node can host instances"),
1092 ("ndparams", None, ht.TMaybeDict, "Node parameters"),
1094 OP_RESULT = ht.TNone
1097 class OpNodeQuery(OpCode):
1098 """Compute the list of nodes."""
1102 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1103 "Empty list to query all nodes, node names otherwise"),
1105 OP_RESULT = _TOldQueryResult
1108 class OpNodeQueryvols(OpCode):
1109 """Get list of volumes on node."""
1112 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1113 "Empty list to query all nodes, node names otherwise"),
1115 OP_RESULT = ht.TListOf(ht.TAny)
1118 class OpNodeQueryStorage(OpCode):
1119 """Get information on storage for node(s)."""
1123 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "List of nodes"),
1124 ("name", None, ht.TMaybeString, "Storage name"),
1126 OP_RESULT = _TOldQueryResult
1129 class OpNodeModifyStorage(OpCode):
1130 """Modifies the properies of a storage unit"""
1131 OP_DSC_FIELD = "node_name"
1136 ("changes", ht.NoDefault, ht.TDict, "Requested changes"),
1138 OP_RESULT = ht.TNone
1141 class OpRepairNodeStorage(OpCode):
1142 """Repairs the volume group on a node."""
1143 OP_DSC_FIELD = "node_name"
1148 _PIgnoreConsistency,
1150 OP_RESULT = ht.TNone
1153 class OpNodeSetParams(OpCode):
1154 """Change the parameters of a node."""
1155 OP_DSC_FIELD = "node_name"
1161 ("master_candidate", None, ht.TMaybeBool,
1162 "Whether the node should become a master candidate"),
1163 ("offline", None, ht.TMaybeBool,
1164 "Whether the node should be marked as offline"),
1165 ("drained", None, ht.TMaybeBool,
1166 "Whether the node should be marked as drained"),
1167 ("auto_promote", False, ht.TBool,
1168 "Whether node(s) should be promoted to master candidate if necessary"),
1169 ("master_capable", None, ht.TMaybeBool,
1170 "Denote whether node can become master or master candidate"),
1171 ("vm_capable", None, ht.TMaybeBool,
1172 "Denote whether node can host instances"),
1173 ("secondary_ip", None, ht.TMaybeString,
1174 "Change node's secondary IP address"),
1175 ("ndparams", None, ht.TMaybeDict, "Set node parameters"),
1176 ("powered", None, ht.TMaybeBool,
1177 "Whether the node should be marked as powered"),
1179 OP_RESULT = _TSetParamsResult
1182 class OpNodePowercycle(OpCode):
1183 """Tries to powercycle a node."""
1184 OP_DSC_FIELD = "node_name"
1189 OP_RESULT = ht.TMaybeString
1192 class OpNodeMigrate(OpCode):
1193 """Migrate all instances from a node."""
1194 OP_DSC_FIELD = "node_name"
1199 _PMigrationTargetNode,
1202 _PIAllocFromDesc("Iallocator for deciding the target node"
1203 " for shared-storage instances"),
1205 OP_RESULT = TJobIdListOnly
1208 class OpNodeEvacuate(OpCode):
1209 """Evacuate instances off a number of nodes."""
1210 OP_DSC_FIELD = "node_name"
1214 ("remote_node", None, ht.TMaybeString, "New secondary node"),
1215 _PIAllocFromDesc("Iallocator for computing solution"),
1216 ("mode", ht.NoDefault, ht.TElemOf(constants.NODE_EVAC_MODES),
1217 "Node evacuation mode"),
1219 OP_RESULT = TJobIdListOnly
1224 class OpInstanceCreate(OpCode):
1225 """Create an instance.
1227 @ivar instance_name: Instance name
1228 @ivar mode: Instance creation mode (one of L{constants.INSTANCE_CREATE_MODES})
1229 @ivar source_handshake: Signed handshake from source (remote import only)
1230 @ivar source_x509_ca: Source X509 CA in PEM format (remote import only)
1231 @ivar source_instance_name: Previous name of instance (remote import only)
1232 @ivar source_shutdown_timeout: Shutdown timeout used for source instance
1233 (remote import only)
1236 OP_DSC_FIELD = "instance_name"
1243 ("beparams", ht.EmptyDict, ht.TDict, "Backend parameters for instance"),
1244 ("disks", ht.NoDefault, ht.TListOf(_TDiskParams),
1245 "Disk descriptions, for example ``[{\"%s\": 100}, {\"%s\": 5}]``;"
1246 " each disk definition must contain a ``%s`` value and"
1247 " can contain an optional ``%s`` value denoting the disk access mode"
1249 (constants.IDISK_SIZE, constants.IDISK_SIZE, constants.IDISK_SIZE,
1250 constants.IDISK_MODE,
1251 " or ".join("``%s``" % i for i in sorted(constants.DISK_ACCESS_SET)))),
1252 ("disk_template", ht.NoDefault, _BuildDiskTemplateCheck(True),
1254 ("file_driver", None, ht.TMaybe(ht.TElemOf(constants.FILE_DRIVER)),
1255 "Driver for file-backed disks"),
1256 ("file_storage_dir", None, ht.TMaybeString,
1257 "Directory for storing file-backed disks"),
1258 ("hvparams", ht.EmptyDict, ht.TDict,
1259 "Hypervisor parameters for instance, hypervisor-dependent"),
1260 ("hypervisor", None, ht.TMaybeString, "Hypervisor"),
1261 _PIAllocFromDesc("Iallocator for deciding which node(s) to use"),
1262 ("identify_defaults", False, ht.TBool,
1263 "Reset instance parameters to default if equal"),
1264 ("ip_check", True, ht.TBool, _PIpCheckDoc),
1265 ("conflicts_check", True, ht.TBool, "Check for conflicting IPs"),
1266 ("mode", ht.NoDefault, ht.TElemOf(constants.INSTANCE_CREATE_MODES),
1267 "Instance creation mode"),
1268 ("nics", ht.NoDefault, ht.TListOf(_TestNicDef),
1269 "List of NIC (network interface) definitions, for example"
1270 " ``[{}, {}, {\"%s\": \"198.51.100.4\"}]``; each NIC definition can"
1271 " contain the optional values %s" %
1273 ", ".join("``%s``" % i for i in sorted(constants.INIC_PARAMS)))),
1274 ("no_install", None, ht.TMaybeBool,
1275 "Do not install the OS (will disable automatic start)"),
1276 ("osparams", ht.EmptyDict, ht.TDict, "OS parameters for instance"),
1277 ("os_type", None, ht.TMaybeString, "Operating system"),
1278 ("pnode", None, ht.TMaybeString, "Primary node"),
1279 ("snode", None, ht.TMaybeString, "Secondary node"),
1280 ("source_handshake", None, ht.TMaybe(ht.TList),
1281 "Signed handshake from source (remote import only)"),
1282 ("source_instance_name", None, ht.TMaybeString,
1283 "Source instance name (remote import only)"),
1284 ("source_shutdown_timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT,
1286 "How long source instance was given to shut down (remote import only)"),
1287 ("source_x509_ca", None, ht.TMaybeString,
1288 "Source X509 CA in PEM format (remote import only)"),
1289 ("src_node", None, ht.TMaybeString, "Source node for import"),
1290 ("src_path", None, ht.TMaybeString, "Source directory for import"),
1291 ("start", True, ht.TBool, "Whether to start instance after creation"),
1292 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "Instance tags"),
1294 OP_RESULT = ht.Comment("instance nodes")(ht.TListOf(ht.TNonEmptyString))
1297 class OpInstanceMultiAlloc(OpCode):
1298 """Allocates multiple instances.
1302 _PIAllocFromDesc("Iallocator used to allocate all the instances"),
1303 ("instances", ht.EmptyList, ht.TListOf(ht.TInstanceOf(OpInstanceCreate)),
1304 "List of instance create opcodes describing the instances to allocate"),
1306 _JOB_LIST = ht.Comment("List of submitted jobs")(TJobIdList)
1307 ALLOCATABLE_KEY = "allocatable"
1308 FAILED_KEY = "allocatable"
1309 OP_RESULT = ht.TStrictDict(True, True, {
1310 constants.JOB_IDS_KEY: _JOB_LIST,
1311 ALLOCATABLE_KEY: ht.TListOf(ht.TNonEmptyString),
1312 FAILED_KEY: ht.TListOf(ht.TNonEmptyString),
1315 def __getstate__(self):
1316 """Generic serializer.
1319 state = OpCode.__getstate__(self)
1320 if hasattr(self, "instances"):
1321 # pylint: disable=E1101
1322 state["instances"] = [inst.__getstate__() for inst in self.instances]
1325 def __setstate__(self, state):
1326 """Generic unserializer.
1328 This method just restores from the serialized state the attributes
1329 of the current instance.
1331 @param state: the serialized opcode data
1332 @type state: C{dict}
1335 if not isinstance(state, dict):
1336 raise ValueError("Invalid data to __setstate__: expected dict, got %s" %
1339 if "instances" in state:
1340 state["instances"] = map(OpCode.LoadOpCode, state["instances"])
1342 return OpCode.__setstate__(self, state)
1344 def Validate(self, set_defaults):
1345 """Validates this opcode.
1347 We do this recursively.
1350 OpCode.Validate(self, set_defaults)
1352 for inst in self.instances: # pylint: disable=E1101
1353 inst.Validate(set_defaults)
1356 class OpInstanceReinstall(OpCode):
1357 """Reinstall an instance's OS."""
1358 OP_DSC_FIELD = "instance_name"
1362 ("os_type", None, ht.TMaybeString, "Instance operating system"),
1363 ("osparams", None, ht.TMaybeDict, "Temporary OS parameters"),
1365 OP_RESULT = ht.TNone
1368 class OpInstanceRemove(OpCode):
1369 """Remove an instance."""
1370 OP_DSC_FIELD = "instance_name"
1374 ("ignore_failures", False, ht.TBool,
1375 "Whether to ignore failures during removal"),
1377 OP_RESULT = ht.TNone
1380 class OpInstanceRename(OpCode):
1381 """Rename an instance."""
1385 ("new_name", ht.NoDefault, ht.TNonEmptyString, "New instance name"),
1386 ("ip_check", False, ht.TBool, _PIpCheckDoc),
1388 OP_RESULT = ht.Comment("New instance name")(ht.TNonEmptyString)
1391 class OpInstanceStartup(OpCode):
1392 """Startup an instance."""
1393 OP_DSC_FIELD = "instance_name"
1397 _PIgnoreOfflineNodes,
1398 ("hvparams", ht.EmptyDict, ht.TDict,
1399 "Temporary hypervisor parameters, hypervisor-dependent"),
1400 ("beparams", ht.EmptyDict, ht.TDict, "Temporary backend parameters"),
1404 OP_RESULT = ht.TNone
1407 class OpInstanceShutdown(OpCode):
1408 """Shutdown an instance."""
1409 OP_DSC_FIELD = "instance_name"
1412 _PIgnoreOfflineNodes,
1413 ("timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT, ht.TNonNegativeInt,
1414 "How long to wait for instance to shut down"),
1417 OP_RESULT = ht.TNone
1420 class OpInstanceReboot(OpCode):
1421 """Reboot an instance."""
1422 OP_DSC_FIELD = "instance_name"
1426 ("ignore_secondaries", False, ht.TBool,
1427 "Whether to start the instance even if secondary disks are failing"),
1428 ("reboot_type", ht.NoDefault, ht.TElemOf(constants.REBOOT_TYPES),
1429 "How to reboot instance"),
1431 OP_RESULT = ht.TNone
1434 class OpInstanceReplaceDisks(OpCode):
1435 """Replace the disks of an instance."""
1436 OP_DSC_FIELD = "instance_name"
1441 ("mode", ht.NoDefault, ht.TElemOf(constants.REPLACE_MODES),
1442 "Replacement mode"),
1443 ("disks", ht.EmptyList, ht.TListOf(ht.TNonNegativeInt),
1445 ("remote_node", None, ht.TMaybeString, "New secondary node"),
1446 _PIAllocFromDesc("Iallocator for deciding new secondary node"),
1448 OP_RESULT = ht.TNone
1451 class OpInstanceFailover(OpCode):
1452 """Failover an instance."""
1453 OP_DSC_FIELD = "instance_name"
1457 _PIgnoreConsistency,
1458 _PMigrationTargetNode,
1460 _PIAllocFromDesc("Iallocator for deciding the target node for"
1461 " shared-storage instances"),
1463 OP_RESULT = ht.TNone
1466 class OpInstanceMigrate(OpCode):
1467 """Migrate an instance.
1469 This migrates (without shutting down an instance) to its secondary
1472 @ivar instance_name: the name of the instance
1473 @ivar mode: the migration mode (live, non-live or None for auto)
1476 OP_DSC_FIELD = "instance_name"
1481 _PMigrationTargetNode,
1484 ("cleanup", False, ht.TBool,
1485 "Whether a previously failed migration should be cleaned up"),
1486 _PIAllocFromDesc("Iallocator for deciding the target node for"
1487 " shared-storage instances"),
1488 ("allow_failover", False, ht.TBool,
1489 "Whether we can fallback to failover if migration is not possible"),
1491 OP_RESULT = ht.TNone
1494 class OpInstanceMove(OpCode):
1495 """Move an instance.
1497 This move (with shutting down an instance and data copying) to an
1500 @ivar instance_name: the name of the instance
1501 @ivar target_node: the destination node
1504 OP_DSC_FIELD = "instance_name"
1509 ("target_node", ht.NoDefault, ht.TNonEmptyString, "Target node"),
1510 _PIgnoreConsistency,
1512 OP_RESULT = ht.TNone
1515 class OpInstanceConsole(OpCode):
1516 """Connect to an instance's console."""
1517 OP_DSC_FIELD = "instance_name"
1521 OP_RESULT = ht.TDict
1524 class OpInstanceActivateDisks(OpCode):
1525 """Activate an instance's disks."""
1526 OP_DSC_FIELD = "instance_name"
1529 ("ignore_size", False, ht.TBool, "Whether to ignore recorded size"),
1532 OP_RESULT = ht.TListOf(ht.TAnd(ht.TIsLength(3),
1533 ht.TItems([ht.TNonEmptyString,
1535 ht.TNonEmptyString])))
1538 class OpInstanceDeactivateDisks(OpCode):
1539 """Deactivate an instance's disks."""
1540 OP_DSC_FIELD = "instance_name"
1545 OP_RESULT = ht.TNone
1548 class OpInstanceRecreateDisks(OpCode):
1549 """Recreate an instance's disks."""
1551 ht.TAnd(ht.TIsLength(2),
1552 ht.TItems([ht.Comment("Disk index")(ht.TNonNegativeInt),
1553 ht.Comment("Parameters")(_TDiskParams)]))
1555 OP_DSC_FIELD = "instance_name"
1558 ("disks", ht.EmptyList,
1559 ht.TOr(ht.TListOf(ht.TNonNegativeInt), ht.TListOf(_TDiskChanges)),
1560 "List of disk indexes (deprecated) or a list of tuples containing a disk"
1561 " index and a possibly empty dictionary with disk parameter changes"),
1562 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1563 "New instance nodes, if relocation is desired"),
1564 _PIAllocFromDesc("Iallocator for deciding new nodes"),
1566 OP_RESULT = ht.TNone
1569 class OpInstanceQuery(OpCode):
1570 """Compute the list of instances."""
1574 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1575 "Empty list to query all instances, instance names otherwise"),
1577 OP_RESULT = _TOldQueryResult
1580 class OpInstanceQueryData(OpCode):
1581 """Compute the run-time status of instances."""
1584 ("instances", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1586 ("static", False, ht.TBool,
1587 "Whether to only return configuration data without querying"
1590 OP_RESULT = ht.TDictOf(ht.TNonEmptyString, ht.TDict)
1593 def _TestInstSetParamsModList(fn):
1594 """Generates a check for modification lists.
1598 # TODO: Remove in version 2.8 including support in LUInstanceSetParams
1600 ht.TAnd(ht.TIsLength(2), ht.TItems([
1601 ht.TOr(ht.TElemOf(constants.DDMS_VALUES), ht.TNonNegativeInt),
1605 # New format, supporting adding/removing disks/NICs at arbitrary indices
1607 ht.TAnd(ht.TIsLength(3), ht.TItems([
1608 ht.TElemOf(constants.DDMS_VALUES_WITH_MODIFY),
1609 ht.Comment("Disk index, can be negative, e.g. -1 for last disk")(ht.TInt),
1613 return ht.TOr(ht.Comment("Recommended")(ht.TListOf(mod_item_fn)),
1614 ht.Comment("Deprecated")(ht.TListOf(old_mod_item_fn)))
1617 class OpInstanceSetParams(OpCode):
1618 """Change the parameters of an instance.
1621 TestNicModifications = _TestInstSetParamsModList(_TestNicDef)
1622 TestDiskModifications = _TestInstSetParamsModList(_TDiskParams)
1624 OP_DSC_FIELD = "instance_name"
1630 ("nics", ht.EmptyList, TestNicModifications,
1631 "List of NIC changes: each item is of the form ``(op, index, settings)``,"
1632 " ``op`` is one of ``%s``, ``%s`` or ``%s``, ``index`` can be either -1"
1633 " to refer to the last position, or a zero-based index number; a"
1634 " deprecated version of this parameter used the form ``(op, settings)``,"
1635 " where ``op`` can be ``%s`` to add a new NIC with the specified"
1636 " settings, ``%s`` to remove the last NIC or a number to modify the"
1637 " settings of the NIC with that index" %
1638 (constants.DDM_ADD, constants.DDM_MODIFY, constants.DDM_REMOVE,
1639 constants.DDM_ADD, constants.DDM_REMOVE)),
1640 ("disks", ht.EmptyList, TestDiskModifications,
1641 "List of disk changes; see ``nics``"),
1642 ("beparams", ht.EmptyDict, ht.TDict, "Per-instance backend parameters"),
1643 ("runtime_mem", None, ht.TMaybePositiveInt, "New runtime memory"),
1644 ("hvparams", ht.EmptyDict, ht.TDict,
1645 "Per-instance hypervisor parameters, hypervisor-dependent"),
1646 ("disk_template", None, ht.TMaybe(_BuildDiskTemplateCheck(False)),
1647 "Disk template for instance"),
1648 ("remote_node", None, ht.TMaybeString,
1649 "Secondary node (used when changing disk template)"),
1650 ("os_name", None, ht.TMaybeString,
1651 "Change the instance's OS without reinstalling the instance"),
1652 ("osparams", None, ht.TMaybeDict, "Per-instance OS parameters"),
1653 ("wait_for_sync", True, ht.TBool,
1654 "Whether to wait for the disk to synchronize, when changing template"),
1655 ("offline", None, ht.TMaybeBool, "Whether to mark instance as offline"),
1656 ("conflicts_check", True, ht.TBool, "Check for conflicting IPs"),
1658 OP_RESULT = _TSetParamsResult
1661 class OpInstanceGrowDisk(OpCode):
1662 """Grow a disk of an instance."""
1663 OP_DSC_FIELD = "instance_name"
1667 ("disk", ht.NoDefault, ht.TInt, "Disk index"),
1668 ("amount", ht.NoDefault, ht.TNonNegativeInt,
1669 "Amount of disk space to add (megabytes)"),
1670 ("absolute", False, ht.TBool,
1671 "Whether the amount parameter is an absolute target or a relative one"),
1673 OP_RESULT = ht.TNone
1676 class OpInstanceChangeGroup(OpCode):
1677 """Moves an instance to another node group."""
1678 OP_DSC_FIELD = "instance_name"
1682 _PIAllocFromDesc("Iallocator for computing solution"),
1683 ("target_groups", None, ht.TMaybeListOf(ht.TNonEmptyString),
1684 "Destination group names or UUIDs (defaults to \"all but current group\""),
1686 OP_RESULT = TJobIdListOnly
1689 # Node group opcodes
1691 class OpGroupAdd(OpCode):
1692 """Add a node group to the cluster."""
1693 OP_DSC_FIELD = "group_name"
1696 _PNodeGroupAllocPolicy,
1701 ("ipolicy", None, ht.TMaybeDict,
1702 "Group-wide :ref:`instance policy <rapi-ipolicy>` specs"),
1704 OP_RESULT = ht.TNone
1707 class OpGroupAssignNodes(OpCode):
1708 """Assign nodes to a node group."""
1709 OP_DSC_FIELD = "group_name"
1713 ("nodes", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
1714 "List of nodes to assign"),
1716 OP_RESULT = ht.TNone
1719 class OpGroupQuery(OpCode):
1720 """Compute the list of node groups."""
1723 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1724 "Empty list to query all groups, group names otherwise"),
1726 OP_RESULT = _TOldQueryResult
1729 class OpGroupSetParams(OpCode):
1730 """Change the parameters of a node group."""
1731 OP_DSC_FIELD = "group_name"
1734 _PNodeGroupAllocPolicy,
1739 ("ipolicy", None, ht.TMaybeDict, "Group-wide instance policy specs"),
1741 OP_RESULT = _TSetParamsResult
1744 class OpGroupRemove(OpCode):
1745 """Remove a node group from the cluster."""
1746 OP_DSC_FIELD = "group_name"
1750 OP_RESULT = ht.TNone
1753 class OpGroupRename(OpCode):
1754 """Rename a node group in the cluster."""
1757 ("new_name", ht.NoDefault, ht.TNonEmptyString, "New group name"),
1759 OP_RESULT = ht.Comment("New group name")(ht.TNonEmptyString)
1762 class OpGroupEvacuate(OpCode):
1763 """Evacuate a node group in the cluster."""
1764 OP_DSC_FIELD = "group_name"
1768 _PIAllocFromDesc("Iallocator for computing solution"),
1769 ("target_groups", None, ht.TMaybeListOf(ht.TNonEmptyString),
1770 "Destination group names or UUIDs"),
1772 OP_RESULT = TJobIdListOnly
1776 class OpOsDiagnose(OpCode):
1777 """Compute the list of guest operating systems."""
1780 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1781 "Which operating systems to diagnose"),
1783 OP_RESULT = _TOldQueryResult
1787 class OpBackupQuery(OpCode):
1788 """Compute the list of exported images."""
1791 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1792 "Empty list to query all nodes, node names otherwise"),
1794 OP_RESULT = ht.TDictOf(ht.TNonEmptyString,
1795 ht.TOr(ht.Comment("False on error")(ht.TBool),
1796 ht.TListOf(ht.TNonEmptyString)))
1799 class OpBackupPrepare(OpCode):
1800 """Prepares an instance export.
1802 @ivar instance_name: Instance name
1803 @ivar mode: Export mode (one of L{constants.EXPORT_MODES})
1806 OP_DSC_FIELD = "instance_name"
1809 ("mode", ht.NoDefault, ht.TElemOf(constants.EXPORT_MODES),
1812 OP_RESULT = ht.TMaybeDict
1815 class OpBackupExport(OpCode):
1816 """Export an instance.
1818 For local exports, the export destination is the node name. For
1819 remote exports, the export destination is a list of tuples, each
1820 consisting of hostname/IP address, port, magic, HMAC and HMAC
1821 salt. The HMAC is calculated using the cluster domain secret over
1822 the value "${index}:${hostname}:${port}". The destination X509 CA
1823 must be a signed certificate.
1825 @ivar mode: Export mode (one of L{constants.EXPORT_MODES})
1826 @ivar target_node: Export destination
1827 @ivar x509_key_name: X509 key to use (remote export only)
1828 @ivar destination_x509_ca: Destination X509 CA in PEM format (remote export
1832 OP_DSC_FIELD = "instance_name"
1836 # TODO: Rename target_node as it changes meaning for different export modes
1837 # (e.g. "destination")
1838 ("target_node", ht.NoDefault, ht.TOr(ht.TNonEmptyString, ht.TList),
1839 "Destination information, depends on export mode"),
1840 ("shutdown", True, ht.TBool, "Whether to shutdown instance before export"),
1841 ("remove_instance", False, ht.TBool,
1842 "Whether to remove instance after export"),
1843 ("ignore_remove_failures", False, ht.TBool,
1844 "Whether to ignore failures while removing instances"),
1845 ("mode", constants.EXPORT_MODE_LOCAL, ht.TElemOf(constants.EXPORT_MODES),
1847 ("x509_key_name", None, ht.TMaybe(ht.TList),
1848 "Name of X509 key (remote export only)"),
1849 ("destination_x509_ca", None, ht.TMaybeString,
1850 "Destination X509 CA (remote export only)"),
1853 ht.TAnd(ht.TIsLength(2), ht.TItems([
1854 ht.Comment("Finalizing status")(ht.TBool),
1855 ht.Comment("Status for every exported disk")(ht.TListOf(ht.TBool)),
1859 class OpBackupRemove(OpCode):
1860 """Remove an instance's export."""
1861 OP_DSC_FIELD = "instance_name"
1865 OP_RESULT = ht.TNone
1869 class OpTagsGet(OpCode):
1870 """Returns the tags of the given object."""
1871 OP_DSC_FIELD = "name"
1874 # Not using _PUseLocking as the default is different for historical reasons
1875 ("use_locking", True, ht.TBool, "Whether to use synchronization"),
1876 # Name is only meaningful for nodes and instances
1877 ("name", ht.NoDefault, ht.TMaybeString,
1878 "Name of object to retrieve tags from"),
1880 OP_RESULT = ht.TListOf(ht.TNonEmptyString)
1883 class OpTagsSearch(OpCode):
1884 """Searches the tags in the cluster for a given pattern."""
1885 OP_DSC_FIELD = "pattern"
1887 ("pattern", ht.NoDefault, ht.TNonEmptyString,
1888 "Search pattern (regular expression)"),
1890 OP_RESULT = ht.TListOf(ht.TAnd(ht.TIsLength(2), ht.TItems([
1896 class OpTagsSet(OpCode):
1897 """Add a list of tags on a given object."""
1901 # Name is only meaningful for groups, nodes and instances
1902 ("name", ht.NoDefault, ht.TMaybeString,
1903 "Name of object where tag(s) should be added"),
1905 OP_RESULT = ht.TNone
1908 class OpTagsDel(OpCode):
1909 """Remove a list of tags from a given object."""
1913 # Name is only meaningful for groups, nodes and instances
1914 ("name", ht.NoDefault, ht.TMaybeString,
1915 "Name of object where tag(s) should be deleted"),
1917 OP_RESULT = ht.TNone
1921 class OpTestDelay(OpCode):
1922 """Sleeps for a configured amount of time.
1924 This is used just for debugging and testing.
1927 - duration: the time to sleep
1928 - on_master: if true, sleep on the master
1929 - on_nodes: list of nodes in which to sleep
1931 If the on_master parameter is true, it will execute a sleep on the
1932 master (before any node sleep).
1934 If the on_nodes list is not empty, it will sleep on those nodes
1935 (after the sleep on the master, if that is enabled).
1937 As an additional feature, the case of duration < 0 will be reported
1938 as an execution error, so this opcode can be used as a failure
1939 generator. The case of duration == 0 will not be treated specially.
1942 OP_DSC_FIELD = "duration"
1944 ("duration", ht.NoDefault, ht.TNumber, None),
1945 ("on_master", True, ht.TBool, None),
1946 ("on_nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None),
1947 ("repeat", 0, ht.TNonNegativeInt, None),
1951 class OpTestAllocator(OpCode):
1952 """Allocator framework testing.
1954 This opcode has two modes:
1955 - gather and return allocator input for a given mode (allocate new
1956 or replace secondary) and a given instance definition (direction
1958 - run a selected allocator for a given operation (as above) and
1959 return the allocator output (direction 'out')
1962 OP_DSC_FIELD = "iallocator"
1964 ("direction", ht.NoDefault,
1965 ht.TElemOf(constants.VALID_IALLOCATOR_DIRECTIONS), None),
1966 ("mode", ht.NoDefault, ht.TElemOf(constants.VALID_IALLOCATOR_MODES), None),
1967 ("name", ht.NoDefault, ht.TNonEmptyString, None),
1968 ("nics", ht.NoDefault,
1969 ht.TMaybeListOf(ht.TDictOf(ht.TElemOf([constants.INIC_MAC,
1974 ("disks", ht.NoDefault, ht.TMaybe(ht.TList), None),
1975 ("hypervisor", None, ht.TMaybeString, None),
1976 _PIAllocFromDesc(None),
1977 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None),
1978 ("memory", None, ht.TMaybe(ht.TNonNegativeInt), None),
1979 ("vcpus", None, ht.TMaybe(ht.TNonNegativeInt), None),
1980 ("os", None, ht.TMaybeString, None),
1981 ("disk_template", None, ht.TMaybeString, None),
1982 ("instances", None, ht.TMaybeListOf(ht.TNonEmptyString), None),
1984 ht.TMaybe(ht.TElemOf(constants.IALLOCATOR_NEVAC_MODES)), None),
1985 ("target_groups", None, ht.TMaybeListOf(ht.TNonEmptyString), None),
1986 ("spindle_use", 1, ht.TNonNegativeInt, None),
1987 ("count", 1, ht.TNonNegativeInt, None),
1991 class OpTestJqueue(OpCode):
1992 """Utility opcode to test some aspects of the job queue.
1996 ("notify_waitlock", False, ht.TBool, None),
1997 ("notify_exec", False, ht.TBool, None),
1998 ("log_messages", ht.EmptyList, ht.TListOf(ht.TString), None),
1999 ("fail", False, ht.TBool, None),
2003 class OpTestDummy(OpCode):
2004 """Utility opcode used by unittests.
2008 ("result", ht.NoDefault, ht.NoType, None),
2009 ("messages", ht.NoDefault, ht.NoType, None),
2010 ("fail", ht.NoDefault, ht.NoType, None),
2011 ("submit_jobs", None, ht.NoType, None),
2017 # Add a new network in the cluster
2018 class OpNetworkAdd(OpCode):
2019 """Add an IP network to the cluster."""
2020 OP_DSC_FIELD = "network_name"
2023 ("network_type", None, ht.TMaybe(_CheckNetworkType), "Network type"),
2024 ("network", ht.NoDefault, _TIpNetwork4, "IPv4 subnet"),
2025 ("gateway", None, ht.TMaybe(_TIpAddress4), "IPv4 gateway"),
2026 ("network6", None, ht.TMaybe(_TIpNetwork6), "IPv6 subnet"),
2027 ("gateway6", None, ht.TMaybe(_TIpAddress6), "IPv6 gateway"),
2028 ("mac_prefix", None, ht.TMaybeString,
2029 "MAC address prefix that overrides cluster one"),
2030 ("add_reserved_ips", None, _TMaybeAddr4List,
2031 "Which IP addresses to reserve"),
2032 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "Network tags"),
2034 OP_RESULT = ht.TNone
2037 class OpNetworkRemove(OpCode):
2038 """Remove an existing network from the cluster.
2039 Must not be connected to any nodegroup.
2042 OP_DSC_FIELD = "network_name"
2047 OP_RESULT = ht.TNone
2050 class OpNetworkSetParams(OpCode):
2051 """Modify Network's parameters except for IPv4 subnet"""
2052 OP_DSC_FIELD = "network_name"
2055 ("network_type", None, ht.TMaybeValueNone(_CheckNetworkType),
2057 ("gateway", None, ht.TMaybeValueNone(_TIpAddress4), "IPv4 gateway"),
2058 ("network6", None, ht.TMaybeValueNone(_TIpNetwork6), "IPv6 subnet"),
2059 ("gateway6", None, ht.TMaybeValueNone(_TIpAddress6), "IPv6 gateway"),
2060 ("mac_prefix", None, ht.TMaybeValueNone(ht.TString),
2061 "MAC address prefix that overrides cluster one"),
2062 ("add_reserved_ips", None, _TMaybeAddr4List,
2063 "Which external IP addresses to reserve"),
2064 ("remove_reserved_ips", None, _TMaybeAddr4List,
2065 "Which external IP addresses to release"),
2067 OP_RESULT = ht.TNone
2070 class OpNetworkConnect(OpCode):
2071 """Connect a Network to a specific Nodegroup with the defined netparams
2072 (mode, link). Nics in this Network will inherit those params.
2073 Produce errors if a NIC (that its not already assigned to a network)
2074 has an IP that is contained in the Network this will produce error unless
2075 --no-conflicts-check is passed.
2078 OP_DSC_FIELD = "network_name"
2082 ("network_mode", ht.NoDefault, ht.TString, "Connectivity mode"),
2083 ("network_link", ht.NoDefault, ht.TString, "Connectivity link"),
2084 ("conflicts_check", True, ht.TBool, "Whether to check for conflicting IPs"),
2086 OP_RESULT = ht.TNone
2089 class OpNetworkDisconnect(OpCode):
2090 """Disconnect a Network from a Nodegroup. Produce errors if NICs are
2091 present in the Network unless --no-conficts-check option is passed.
2094 OP_DSC_FIELD = "network_name"
2098 ("conflicts_check", True, ht.TBool, "Whether to check for conflicting IPs"),
2100 OP_RESULT = ht.TNone
2103 class OpNetworkQuery(OpCode):
2104 """Compute the list of networks."""
2107 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
2108 "Empty list to query all groups, group names otherwise"),
2110 OP_RESULT = _TOldQueryResult
2114 """Returns list of all defined opcodes.
2116 Does not eliminate duplicates by C{OP_ID}.
2119 return [v for v in globals().values()
2120 if (isinstance(v, type) and issubclass(v, OpCode) and
2121 hasattr(v, "OP_ID") and v is not OpCode)]
2124 OP_MAPPING = dict((v.OP_ID, v) for v in _GetOpList())