4 # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 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 outils
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")
162 #: Opportunistic locking
163 _POpportunisticLocking = \
164 ("opportunistic_locking", False, ht.TBool,
165 ("Whether to employ opportunistic locking for nodes, meaning nodes"
166 " already locked by another opcode won't be considered for instance"
167 " allocation (only when an iallocator is used)"))
169 _PIgnoreIpolicy = ("ignore_ipolicy", False, ht.TBool,
170 "Whether to ignore ipolicy violations")
172 # Allow runtime changes while migrating
173 _PAllowRuntimeChgs = ("allow_runtime_changes", True, ht.TBool,
174 "Allow runtime changes (eg. memory ballooning)")
176 #: IAllocator field builder
177 _PIAllocFromDesc = lambda desc: ("iallocator", None, ht.TMaybeString, desc)
179 #: a required network name
180 _PNetworkName = ("network_name", ht.NoDefault, ht.TNonEmptyString,
184 ("target_groups", None, ht.TMaybeListOf(ht.TNonEmptyString),
185 "Destination group names or UUIDs (defaults to \"all but current group\")")
187 #: OP_ID conversion regular expression
188 _OPID_RE = re.compile("([a-z])([A-Z])")
190 #: Utility function for L{OpClusterSetParams}
191 _TestClusterOsListItem = \
192 ht.TAnd(ht.TIsLength(2), ht.TItems([
193 ht.TElemOf(constants.DDMS_VALUES),
197 _TestClusterOsList = ht.TMaybeListOf(_TestClusterOsListItem)
199 # TODO: Generate check from constants.INIC_PARAMS_TYPES
200 #: Utility function for testing NIC definitions
202 ht.Comment("NIC parameters")(ht.TDictOf(ht.TElemOf(constants.INIC_PARAMS),
205 _TSetParamsResultItemItems = [
206 ht.Comment("name of changed parameter")(ht.TNonEmptyString),
207 ht.Comment("new value")(ht.TAny),
210 _TSetParamsResult = \
211 ht.TListOf(ht.TAnd(ht.TIsLength(len(_TSetParamsResultItemItems)),
212 ht.TItems(_TSetParamsResultItemItems)))
214 # In the disks option we can provide arbitrary parameters too, which
215 # we may not be able to validate at this level, so we just check the
216 # format of the dict here and the checks concerning IDISK_PARAMS will
217 # happen at the LU level
219 ht.Comment("Disk parameters")(ht.TDictOf(ht.TNonEmptyString,
220 ht.TOr(ht.TNonEmptyString, ht.TInt)))
223 ht.TListOf(ht.TAnd(ht.TIsLength(2),
224 ht.TItems([ht.TElemOf(constants.RS_ALL),
227 _TQueryResult = ht.TListOf(_TQueryRow)
229 _TOldQueryRow = ht.TListOf(ht.TAny)
231 _TOldQueryResult = ht.TListOf(_TOldQueryRow)
241 #: Attribute name for dependencies
242 DEPEND_ATTR = "depends"
244 #: Attribute name for comment
245 COMMENT_ATTR = "comment"
249 """Convert an opcode class name to an OP_ID.
252 @param name: the class name, as OpXxxYyy
254 @return: the name in the OP_XXXX_YYYY format
257 if not name.startswith("Op"):
259 # Note: (?<=[a-z])(?=[A-Z]) would be ideal, since it wouldn't
260 # consume any input, and hence we would just have all the elements
261 # in the list, one by one; but it seems that split doesn't work on
262 # non-consuming input, hence we have to process the input string a
264 name = _OPID_RE.sub(r"\1,\2", name)
265 elems = name.split(",")
266 return "_".join(n.upper() for n in elems)
269 def _GenerateObjectTypeCheck(obj, fields_types):
270 """Helper to generate type checks for objects.
272 @param obj: The object to generate type checks
273 @param fields_types: The fields and their types as a dict
274 @return: A ht type check function
277 assert set(obj.GetAllSlots()) == set(fields_types.keys()), \
278 "%s != %s" % (set(obj.GetAllSlots()), set(fields_types.keys()))
279 return ht.TStrictDict(True, True, fields_types)
283 _GenerateObjectTypeCheck(objects.QueryFieldDefinition, {
284 "name": ht.TNonEmptyString,
285 "title": ht.TNonEmptyString,
286 "kind": ht.TElemOf(constants.QFT_ALL),
287 "doc": ht.TNonEmptyString,
291 def RequireFileStorage():
292 """Checks that file storage is enabled.
294 While it doesn't really fit into this module, L{utils} was deemed too large
295 of a dependency to be imported for just one or two functions.
297 @raise errors.OpPrereqError: when file storage is disabled
300 if not constants.ENABLE_FILE_STORAGE:
301 raise errors.OpPrereqError("File storage disabled at configure time",
305 def RequireSharedFileStorage():
306 """Checks that shared file storage is enabled.
308 While it doesn't really fit into this module, L{utils} was deemed too large
309 of a dependency to be imported for just one or two functions.
311 @raise errors.OpPrereqError: when shared file storage is disabled
314 if not constants.ENABLE_SHARED_FILE_STORAGE:
315 raise errors.OpPrereqError("Shared file storage disabled at"
316 " configure time", errors.ECODE_INVAL)
319 @ht.WithDesc("CheckFileStorage")
320 def _CheckFileStorage(value):
321 """Ensures file storage is enabled if used.
324 if value == constants.DT_FILE:
326 elif value == constants.DT_SHARED_FILE:
327 RequireSharedFileStorage()
331 def _BuildDiskTemplateCheck(accept_none):
332 """Builds check for disk template.
334 @type accept_none: bool
335 @param accept_none: whether to accept None as a correct value
339 template_check = ht.TElemOf(constants.DISK_TEMPLATES)
342 template_check = ht.TMaybe(template_check)
344 return ht.TAnd(template_check, _CheckFileStorage)
347 def _CheckStorageType(storage_type):
348 """Ensure a given storage type is valid.
351 if storage_type not in constants.VALID_STORAGE_TYPES:
352 raise errors.OpPrereqError("Unknown storage type: %s" % storage_type,
354 if storage_type == constants.ST_FILE:
355 # TODO: What about shared file storage?
360 #: Storage type parameter
361 _PStorageType = ("storage_type", ht.NoDefault, _CheckStorageType,
365 @ht.WithDesc("IPv4 network")
366 def _CheckCIDRNetNotation(value):
367 """Ensure a given CIDR notation type is valid.
371 ipaddr.IPv4Network(value)
372 except ipaddr.AddressValueError:
377 @ht.WithDesc("IPv4 address")
378 def _CheckCIDRAddrNotation(value):
379 """Ensure a given CIDR notation type is valid.
383 ipaddr.IPv4Address(value)
384 except ipaddr.AddressValueError:
389 @ht.WithDesc("IPv6 address")
390 def _CheckCIDR6AddrNotation(value):
391 """Ensure a given CIDR notation type is valid.
395 ipaddr.IPv6Address(value)
396 except ipaddr.AddressValueError:
401 @ht.WithDesc("IPv6 network")
402 def _CheckCIDR6NetNotation(value):
403 """Ensure a given CIDR notation type is valid.
407 ipaddr.IPv6Network(value)
408 except ipaddr.AddressValueError:
413 _TIpAddress4 = ht.TAnd(ht.TString, _CheckCIDRAddrNotation)
414 _TIpAddress6 = ht.TAnd(ht.TString, _CheckCIDR6AddrNotation)
415 _TIpNetwork4 = ht.TAnd(ht.TString, _CheckCIDRNetNotation)
416 _TIpNetwork6 = ht.TAnd(ht.TString, _CheckCIDR6NetNotation)
417 _TMaybeAddr4List = ht.TMaybe(ht.TListOf(_TIpAddress4))
420 class _AutoOpParamSlots(outils.AutoSlots):
421 """Meta class for opcode definitions.
424 def __new__(mcs, name, bases, attrs):
425 """Called when a class should be created.
427 @param mcs: The meta class
428 @param name: Name of created class
429 @param bases: Base classes
431 @param attrs: Class attributes
434 assert "OP_ID" not in attrs, "Class '%s' defining OP_ID" % name
436 slots = mcs._GetSlots(attrs)
437 assert "OP_DSC_FIELD" not in attrs or attrs["OP_DSC_FIELD"] in slots, \
438 "Class '%s' uses unknown field in OP_DSC_FIELD" % name
439 assert ("OP_DSC_FORMATTER" not in attrs or
440 callable(attrs["OP_DSC_FORMATTER"])), \
441 ("Class '%s' uses non-callable in OP_DSC_FORMATTER (%s)" %
442 (name, type(attrs["OP_DSC_FORMATTER"])))
444 attrs["OP_ID"] = _NameToId(name)
446 return outils.AutoSlots.__new__(mcs, name, bases, attrs)
449 def _GetSlots(mcs, attrs):
450 """Build the slots out of OP_PARAMS.
453 # Always set OP_PARAMS to avoid duplicates in BaseOpCode.GetAllParams
454 params = attrs.setdefault("OP_PARAMS", [])
456 # Use parameter names as slots
457 return [pname for (pname, _, _, _) in params]
460 class BaseOpCode(outils.ValidatedSlots):
461 """A simple serializable object.
463 This object serves as a parent class for OpCode without any custom
467 # pylint: disable=E1101
468 # as OP_ID is dynamically defined
469 __metaclass__ = _AutoOpParamSlots
471 def __getstate__(self):
472 """Generic serializer.
474 This method just returns the contents of the instance as a
478 @return: the instance attributes and their values
482 for name in self.GetAllSlots():
483 if hasattr(self, name):
484 state[name] = getattr(self, name)
487 def __setstate__(self, state):
488 """Generic unserializer.
490 This method just restores from the serialized state the attributes
491 of the current instance.
493 @param state: the serialized opcode data
497 if not isinstance(state, dict):
498 raise ValueError("Invalid data to __setstate__: expected dict, got %s" %
501 for name in self.GetAllSlots():
502 if name not in state and hasattr(self, name):
506 setattr(self, name, state[name])
509 def GetAllParams(cls):
510 """Compute list of all parameters for an opcode.
514 for parent in cls.__mro__:
515 slots.extend(getattr(parent, "OP_PARAMS", []))
518 def Validate(self, set_defaults): # pylint: disable=W0221
519 """Validate opcode parameters, optionally setting default values.
521 @type set_defaults: bool
522 @param set_defaults: Whether to set default values
523 @raise errors.OpPrereqError: When a parameter value doesn't match
527 for (attr_name, default, test, _) in self.GetAllParams():
528 assert test == ht.NoType or callable(test)
530 if not hasattr(self, attr_name):
531 if default == ht.NoDefault:
532 raise errors.OpPrereqError("Required parameter '%s.%s' missing" %
533 (self.OP_ID, attr_name),
536 if callable(default):
540 setattr(self, attr_name, dval)
542 if test == ht.NoType:
546 if set_defaults or hasattr(self, attr_name):
547 attr_val = getattr(self, attr_name)
548 if not test(attr_val):
549 logging.error("OpCode %s, parameter %s, has invalid type %s/value"
550 " '%s' expecting type %s",
551 self.OP_ID, attr_name, type(attr_val), attr_val, test)
552 raise errors.OpPrereqError("Parameter '%s.%s' fails validation" %
553 (self.OP_ID, attr_name),
557 def _BuildJobDepCheck(relative):
558 """Builds check for job dependencies (L{DEPEND_ATTR}).
561 @param relative: Whether to accept relative job IDs (negative)
566 job_id = ht.TOr(ht.TJobId, ht.TRelativeJobId)
571 ht.TAnd(ht.TOr(ht.TList, ht.TTuple),
574 ht.TListOf(ht.TElemOf(constants.JOBS_FINALIZED))]))
576 return ht.TMaybeListOf(job_dep)
579 TNoRelativeJobDependencies = _BuildJobDepCheck(False)
581 #: List of submission status and job ID as returned by C{SubmitManyJobs}
583 ht.TAnd(ht.TIsLength(2),
584 ht.TItems([ht.Comment("success")(ht.TBool),
585 ht.Comment("Job ID if successful, error message"
586 " otherwise")(ht.TOr(ht.TString,
588 TJobIdList = ht.TListOf(_TJobIdListItem)
590 #: Result containing only list of submitted jobs
591 TJobIdListOnly = ht.TStrictDict(True, True, {
592 constants.JOB_IDS_KEY: ht.Comment("List of submitted jobs")(TJobIdList),
596 class OpCode(BaseOpCode):
599 This is the root of the actual OpCode hierarchy. All clases derived
600 from this class should override OP_ID.
602 @cvar OP_ID: The ID of this opcode. This should be unique amongst all
603 children of this class.
604 @cvar OP_DSC_FIELD: The name of a field whose value will be included in the
605 string returned by Summary(); see the docstring of that
607 @cvar OP_DSC_FORMATTER: A callable that should format the OP_DSC_FIELD; if
608 not present, then the field will be simply converted
610 @cvar OP_PARAMS: List of opcode attributes, the default values they should
611 get if not already defined, and types they must match.
612 @cvar OP_RESULT: Callable to verify opcode result
613 @cvar WITH_LU: Boolean that specifies whether this should be included in
614 mcpu's dispatch table
615 @ivar dry_run: Whether the LU should be run in dry-run mode, i.e. just
617 @ivar priority: Opcode priority for queue
620 # pylint: disable=E1101
621 # as OP_ID is dynamically defined
624 ("dry_run", None, ht.TMaybeBool, "Run checks only, don't execute"),
625 ("debug_level", None, ht.TMaybe(ht.TNonNegativeInt), "Debug level"),
626 ("priority", constants.OP_PRIO_DEFAULT,
627 ht.TElemOf(constants.OP_PRIO_SUBMIT_VALID), "Opcode priority"),
628 (DEPEND_ATTR, None, _BuildJobDepCheck(True),
629 "Job dependencies; if used through ``SubmitManyJobs`` relative (negative)"
630 " job IDs can be used; see :doc:`design document <design-chained-jobs>`"
632 (COMMENT_ATTR, None, ht.TMaybeString,
633 "Comment describing the purpose of the opcode"),
637 def __getstate__(self):
638 """Specialized getstate for opcodes.
640 This method adds to the state dictionary the OP_ID of the class,
641 so that on unload we can identify the correct class for
642 instantiating the opcode.
645 @return: the state as a dictionary
648 data = BaseOpCode.__getstate__(self)
649 data["OP_ID"] = self.OP_ID
653 def LoadOpCode(cls, data):
654 """Generic load opcode method.
656 The method identifies the correct opcode class from the dict-form
657 by looking for a OP_ID key, if this is not found, or its value is
658 not available in this module as a child of this class, we fail.
661 @param data: the serialized opcode
664 if not isinstance(data, dict):
665 raise ValueError("Invalid data to LoadOpCode (%s)" % type(data))
666 if "OP_ID" not in data:
667 raise ValueError("Invalid data to LoadOpcode, missing OP_ID")
668 op_id = data["OP_ID"]
670 if op_id in OP_MAPPING:
671 op_class = OP_MAPPING[op_id]
673 raise ValueError("Invalid data to LoadOpCode: OP_ID %s unsupported" %
676 new_data = data.copy()
677 del new_data["OP_ID"]
678 op.__setstate__(new_data)
682 """Generates a summary description of this opcode.
684 The summary is the value of the OP_ID attribute (without the "OP_"
685 prefix), plus the value of the OP_DSC_FIELD attribute, if one was
686 defined; this field should allow to easily identify the operation
687 (for an instance creation job, e.g., it would be the instance
691 assert self.OP_ID is not None and len(self.OP_ID) > 3
692 # all OP_ID start with OP_, we remove that
694 field_name = getattr(self, "OP_DSC_FIELD", None)
696 field_value = getattr(self, field_name, None)
697 field_formatter = getattr(self, "OP_DSC_FORMATTER", None)
698 if callable(field_formatter):
699 field_value = field_formatter(field_value)
700 elif isinstance(field_value, (list, tuple)):
701 field_value = ",".join(str(i) for i in field_value)
702 txt = "%s(%s)" % (txt, field_value)
705 def TinySummary(self):
706 """Generates a compact summary description of the opcode.
709 assert self.OP_ID.startswith("OP_")
711 text = self.OP_ID[3:]
713 for (prefix, supplement) in _SUMMARY_PREFIX.items():
714 if text.startswith(prefix):
715 return supplement + text[len(prefix):]
722 class OpClusterPostInit(OpCode):
723 """Post cluster initialization.
725 This opcode does not touch the cluster at all. Its purpose is to run hooks
726 after the cluster has been initialized.
732 class OpClusterDestroy(OpCode):
733 """Destroy the cluster.
735 This opcode has no other parameters. All the state is irreversibly
736 lost after the execution of this opcode.
739 OP_RESULT = ht.TNonEmptyString
742 class OpClusterQuery(OpCode):
743 """Query cluster information."""
744 OP_RESULT = ht.TDictOf(ht.TNonEmptyString, ht.TAny)
747 class OpClusterVerify(OpCode):
748 """Submits all jobs necessary to verify the cluster.
752 _PDebugSimulateErrors,
757 ("group_name", None, ht.TMaybeString, "Group to verify"),
759 OP_RESULT = TJobIdListOnly
762 class OpClusterVerifyConfig(OpCode):
763 """Verify the cluster config.
767 _PDebugSimulateErrors,
775 class OpClusterVerifyGroup(OpCode):
776 """Run verify on a node group from the cluster.
778 @type skip_checks: C{list}
779 @ivar skip_checks: steps to be skipped from the verify process; this
780 needs to be a subset of
781 L{constants.VERIFY_OPTIONAL_CHECKS}; currently
782 only L{constants.VERIFY_NPLUSONE_MEM} can be passed
785 OP_DSC_FIELD = "group_name"
788 _PDebugSimulateErrors,
797 class OpClusterVerifyDisks(OpCode):
798 """Verify the cluster disks.
801 OP_RESULT = TJobIdListOnly
804 class OpGroupVerifyDisks(OpCode):
805 """Verifies the status of all disks in a node group.
807 Result: a tuple of three elements:
808 - dict of node names with issues (values: error msg)
809 - list of instances with degraded disks (that should be activated)
810 - dict of instances with missing logical volumes (values: (node, vol)
811 pairs with details about the missing volumes)
813 In normal operation, all lists should be empty. A non-empty instance
814 list (3rd element of the result) is still ok (errors were fixed) but
815 non-empty node list means some node is down, and probably there are
816 unfixable drbd errors.
818 Note that only instances that are drbd-based are taken into
819 consideration. This might need to be revisited in the future.
822 OP_DSC_FIELD = "group_name"
827 ht.TAnd(ht.TIsLength(3),
828 ht.TItems([ht.TDictOf(ht.TString, ht.TString),
829 ht.TListOf(ht.TString),
830 ht.TDictOf(ht.TString,
831 ht.TListOf(ht.TListOf(ht.TString)))]))
834 class OpClusterRepairDiskSizes(OpCode):
835 """Verify the disk sizes of the instances and fixes configuration
838 Parameters: optional instances list, in case we want to restrict the
839 checks to only a subset of the instances.
841 Result: a list of tuples, (instance, disk, new-size) for changed
844 In normal operation, the list should be empty.
846 @type instances: list
847 @ivar instances: the list of instances to check, or empty for all instances
851 ("instances", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None),
853 OP_RESULT = ht.TListOf(ht.TAnd(ht.TIsLength(3),
854 ht.TItems([ht.TNonEmptyString,
856 ht.TNonNegativeInt])))
859 class OpClusterConfigQuery(OpCode):
860 """Query cluster configuration values."""
864 OP_RESULT = ht.TListOf(ht.TAny)
867 class OpClusterRename(OpCode):
868 """Rename the cluster.
871 @ivar name: The new name of the cluster. The name and/or the master IP
872 address will be changed to match the new name and its IP
876 OP_DSC_FIELD = "name"
878 ("name", ht.NoDefault, ht.TNonEmptyString, None),
880 OP_RESULT = ht.TNonEmptyString
883 class OpClusterSetParams(OpCode):
884 """Change the parameters of the cluster.
886 @type vg_name: C{str} or C{None}
887 @ivar vg_name: The new volume group name or None to disable LVM usage.
893 ("vg_name", None, ht.TMaybe(ht.TString), "Volume group name"),
894 ("enabled_hypervisors", None,
895 ht.TMaybe(ht.TAnd(ht.TListOf(ht.TElemOf(constants.HYPER_TYPES)),
897 "List of enabled hypervisors"),
899 ht.TMaybe(ht.TDictOf(ht.TNonEmptyString, ht.TDict)),
900 "Cluster-wide hypervisor parameter defaults, hypervisor-dependent"),
901 ("beparams", None, ht.TMaybeDict,
902 "Cluster-wide backend parameter defaults"),
903 ("os_hvp", None, ht.TMaybe(ht.TDictOf(ht.TNonEmptyString, ht.TDict)),
904 "Cluster-wide per-OS hypervisor parameter defaults"),
906 ht.TMaybe(ht.TDictOf(ht.TNonEmptyString, ht.TDict)),
907 "Cluster-wide OS parameter defaults"),
909 ("candidate_pool_size", None, ht.TMaybe(ht.TPositiveInt),
910 "Master candidate pool size"),
911 ("uid_pool", None, ht.NoType,
912 "Set UID pool, must be list of lists describing UID ranges (two items,"
913 " start and end inclusive)"),
914 ("add_uids", None, ht.NoType,
915 "Extend UID pool, must be list of lists describing UID ranges (two"
916 " items, start and end inclusive) to be added"),
917 ("remove_uids", None, ht.NoType,
918 "Shrink UID pool, must be list of lists describing UID ranges (two"
919 " items, start and end inclusive) to be removed"),
920 ("maintain_node_health", None, ht.TMaybeBool,
921 "Whether to automatically maintain node health"),
922 ("prealloc_wipe_disks", None, ht.TMaybeBool,
923 "Whether to wipe disks before allocating them to instances"),
924 ("nicparams", None, ht.TMaybeDict, "Cluster-wide NIC parameter defaults"),
925 ("ndparams", None, ht.TMaybeDict, "Cluster-wide node parameter defaults"),
926 ("ipolicy", None, ht.TMaybeDict,
927 "Cluster-wide :ref:`instance policy <rapi-ipolicy>` specs"),
928 ("drbd_helper", None, ht.TMaybe(ht.TString), "DRBD helper program"),
929 ("default_iallocator", None, ht.TMaybe(ht.TString),
930 "Default iallocator for cluster"),
931 ("master_netdev", None, ht.TMaybe(ht.TString),
932 "Master network device"),
933 ("master_netmask", None, ht.TMaybe(ht.TNonNegativeInt),
934 "Netmask of the master IP"),
935 ("reserved_lvs", None, ht.TMaybeListOf(ht.TNonEmptyString),
936 "List of reserved LVs"),
937 ("hidden_os", None, _TestClusterOsList,
938 "Modify list of hidden operating systems: each modification must have"
939 " two items, the operation and the OS name; the operation can be"
940 " ``%s`` or ``%s``" % (constants.DDM_ADD, constants.DDM_REMOVE)),
941 ("blacklisted_os", None, _TestClusterOsList,
942 "Modify list of blacklisted operating systems: each modification must"
943 " have two items, the operation and the OS name; the operation can be"
944 " ``%s`` or ``%s``" % (constants.DDM_ADD, constants.DDM_REMOVE)),
945 ("use_external_mip_script", None, ht.TMaybeBool,
946 "Whether to use an external master IP address setup script"),
951 class OpClusterRedistConf(OpCode):
952 """Force a full push of the cluster configuration.
958 class OpClusterActivateMasterIp(OpCode):
959 """Activate the master IP on the master node.
965 class OpClusterDeactivateMasterIp(OpCode):
966 """Deactivate the master IP on the master node.
972 class OpQuery(OpCode):
973 """Query for resources/items.
975 @ivar what: Resources to query for, must be one of L{constants.QR_VIA_OP}
976 @ivar fields: List of fields to retrieve
977 @ivar qfilter: Query filter
980 OP_DSC_FIELD = "what"
984 ("fields", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
986 ("qfilter", None, ht.TMaybe(ht.TList),
990 _GenerateObjectTypeCheck(objects.QueryResponse, {
991 "fields": ht.TListOf(_TQueryFieldDef),
992 "data": _TQueryResult,
996 class OpQueryFields(OpCode):
997 """Query for available resource/item fields.
999 @ivar what: Resources to query for, must be one of L{constants.QR_VIA_OP}
1000 @ivar fields: List of fields to retrieve
1003 OP_DSC_FIELD = "what"
1006 ("fields", None, ht.TMaybeListOf(ht.TNonEmptyString),
1007 "Requested fields; if not given, all are returned"),
1010 _GenerateObjectTypeCheck(objects.QueryFieldsResponse, {
1011 "fields": ht.TListOf(_TQueryFieldDef),
1015 class OpOobCommand(OpCode):
1016 """Interact with OOB."""
1018 ("node_names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1019 "List of nodes to run the OOB command against"),
1020 ("command", ht.NoDefault, ht.TElemOf(constants.OOB_COMMANDS),
1021 "OOB command to be run"),
1022 ("timeout", constants.OOB_TIMEOUT, ht.TInt,
1023 "Timeout before the OOB helper will be terminated"),
1024 ("ignore_status", False, ht.TBool,
1025 "Ignores the node offline status for power off"),
1026 ("power_delay", constants.OOB_POWER_DELAY, ht.TNonNegativeFloat,
1027 "Time in seconds to wait between powering on nodes"),
1029 # Fixme: Make it more specific with all the special cases in LUOobCommand
1030 OP_RESULT = _TQueryResult
1033 class OpRestrictedCommand(OpCode):
1034 """Runs a restricted command on node(s).
1039 ("nodes", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
1040 "Nodes on which the command should be run (at least one)"),
1041 ("command", ht.NoDefault, ht.TNonEmptyString,
1042 "Command name (no parameters)"),
1046 ht.Comment("success")(ht.TBool),
1047 ht.Comment("output or error message")(ht.TString),
1051 ht.TListOf(ht.TAnd(ht.TIsLength(len(_RESULT_ITEMS)),
1052 ht.TItems(_RESULT_ITEMS)))
1057 class OpNodeRemove(OpCode):
1060 @type node_name: C{str}
1061 @ivar node_name: The name of the node to remove. If the node still has
1062 instances on it, the operation will fail.
1065 OP_DSC_FIELD = "node_name"
1069 OP_RESULT = ht.TNone
1072 class OpNodeAdd(OpCode):
1073 """Add a node to the cluster.
1075 @type node_name: C{str}
1076 @ivar node_name: The name of the node to add. This can be a short name,
1077 but it will be expanded to the FQDN.
1078 @type primary_ip: IP address
1079 @ivar primary_ip: The primary IP of the node. This will be ignored when the
1080 opcode is submitted, but will be filled during the node
1081 add (so it will be visible in the job query).
1082 @type secondary_ip: IP address
1083 @ivar secondary_ip: The secondary IP of the node. This needs to be passed
1084 if the cluster has been initialized in 'dual-network'
1085 mode, otherwise it must not be given.
1086 @type readd: C{bool}
1087 @ivar readd: Whether to re-add an existing node to the cluster. If
1088 this is not passed, then the operation will abort if the node
1089 name is already in the cluster; use this parameter to 'repair'
1090 a node that had its configuration broken, or was reinstalled
1091 without removal from the cluster.
1093 @ivar group: The node group to which this node will belong.
1094 @type vm_capable: C{bool}
1095 @ivar vm_capable: The vm_capable node attribute
1096 @type master_capable: C{bool}
1097 @ivar master_capable: The master_capable node attribute
1100 OP_DSC_FIELD = "node_name"
1105 ("primary_ip", None, ht.NoType, "Primary IP address"),
1106 ("secondary_ip", None, ht.TMaybeString, "Secondary IP address"),
1107 ("readd", False, ht.TBool, "Whether node is re-added to cluster"),
1108 ("group", None, ht.TMaybeString, "Initial node group"),
1109 ("master_capable", None, ht.TMaybeBool,
1110 "Whether node can become master or master candidate"),
1111 ("vm_capable", None, ht.TMaybeBool,
1112 "Whether node can host instances"),
1113 ("ndparams", None, ht.TMaybeDict, "Node parameters"),
1115 OP_RESULT = ht.TNone
1118 class OpNodeQuery(OpCode):
1119 """Compute the list of nodes."""
1123 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1124 "Empty list to query all nodes, node names otherwise"),
1126 OP_RESULT = _TOldQueryResult
1129 class OpNodeQueryvols(OpCode):
1130 """Get list of volumes on node."""
1133 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1134 "Empty list to query all nodes, node names otherwise"),
1136 OP_RESULT = ht.TListOf(ht.TAny)
1139 class OpNodeQueryStorage(OpCode):
1140 """Get information on storage for node(s)."""
1144 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "List of nodes"),
1145 ("name", None, ht.TMaybeString, "Storage name"),
1147 OP_RESULT = _TOldQueryResult
1150 class OpNodeModifyStorage(OpCode):
1151 """Modifies the properies of a storage unit"""
1152 OP_DSC_FIELD = "node_name"
1157 ("changes", ht.NoDefault, ht.TDict, "Requested changes"),
1159 OP_RESULT = ht.TNone
1162 class OpRepairNodeStorage(OpCode):
1163 """Repairs the volume group on a node."""
1164 OP_DSC_FIELD = "node_name"
1169 _PIgnoreConsistency,
1171 OP_RESULT = ht.TNone
1174 class OpNodeSetParams(OpCode):
1175 """Change the parameters of a node."""
1176 OP_DSC_FIELD = "node_name"
1182 ("master_candidate", None, ht.TMaybeBool,
1183 "Whether the node should become a master candidate"),
1184 ("offline", None, ht.TMaybeBool,
1185 "Whether the node should be marked as offline"),
1186 ("drained", None, ht.TMaybeBool,
1187 "Whether the node should be marked as drained"),
1188 ("auto_promote", False, ht.TBool,
1189 "Whether node(s) should be promoted to master candidate if necessary"),
1190 ("master_capable", None, ht.TMaybeBool,
1191 "Denote whether node can become master or master candidate"),
1192 ("vm_capable", None, ht.TMaybeBool,
1193 "Denote whether node can host instances"),
1194 ("secondary_ip", None, ht.TMaybeString,
1195 "Change node's secondary IP address"),
1196 ("ndparams", None, ht.TMaybeDict, "Set node parameters"),
1197 ("powered", None, ht.TMaybeBool,
1198 "Whether the node should be marked as powered"),
1200 OP_RESULT = _TSetParamsResult
1203 class OpNodePowercycle(OpCode):
1204 """Tries to powercycle a node."""
1205 OP_DSC_FIELD = "node_name"
1210 OP_RESULT = ht.TMaybeString
1213 class OpNodeMigrate(OpCode):
1214 """Migrate all instances from a node."""
1215 OP_DSC_FIELD = "node_name"
1220 _PMigrationTargetNode,
1223 _PIAllocFromDesc("Iallocator for deciding the target node"
1224 " for shared-storage instances"),
1226 OP_RESULT = TJobIdListOnly
1229 class OpNodeEvacuate(OpCode):
1230 """Evacuate instances off a number of nodes."""
1231 OP_DSC_FIELD = "node_name"
1235 ("remote_node", None, ht.TMaybeString, "New secondary node"),
1236 _PIAllocFromDesc("Iallocator for computing solution"),
1237 ("mode", ht.NoDefault, ht.TElemOf(constants.NODE_EVAC_MODES),
1238 "Node evacuation mode"),
1240 OP_RESULT = TJobIdListOnly
1245 class OpInstanceCreate(OpCode):
1246 """Create an instance.
1248 @ivar instance_name: Instance name
1249 @ivar mode: Instance creation mode (one of L{constants.INSTANCE_CREATE_MODES})
1250 @ivar source_handshake: Signed handshake from source (remote import only)
1251 @ivar source_x509_ca: Source X509 CA in PEM format (remote import only)
1252 @ivar source_instance_name: Previous name of instance (remote import only)
1253 @ivar source_shutdown_timeout: Shutdown timeout used for source instance
1254 (remote import only)
1257 OP_DSC_FIELD = "instance_name"
1264 _POpportunisticLocking,
1265 ("beparams", ht.EmptyDict, ht.TDict, "Backend parameters for instance"),
1266 ("disks", ht.NoDefault, ht.TListOf(_TDiskParams),
1267 "Disk descriptions, for example ``[{\"%s\": 100}, {\"%s\": 5}]``;"
1268 " each disk definition must contain a ``%s`` value and"
1269 " can contain an optional ``%s`` value denoting the disk access mode"
1271 (constants.IDISK_SIZE, constants.IDISK_SIZE, constants.IDISK_SIZE,
1272 constants.IDISK_MODE,
1273 " or ".join("``%s``" % i for i in sorted(constants.DISK_ACCESS_SET)))),
1274 ("disk_template", ht.NoDefault, _BuildDiskTemplateCheck(True),
1276 ("file_driver", None, ht.TMaybe(ht.TElemOf(constants.FILE_DRIVER)),
1277 "Driver for file-backed disks"),
1278 ("file_storage_dir", None, ht.TMaybeString,
1279 "Directory for storing file-backed disks"),
1280 ("hvparams", ht.EmptyDict, ht.TDict,
1281 "Hypervisor parameters for instance, hypervisor-dependent"),
1282 ("hypervisor", None, ht.TMaybeString, "Hypervisor"),
1283 _PIAllocFromDesc("Iallocator for deciding which node(s) to use"),
1284 ("identify_defaults", False, ht.TBool,
1285 "Reset instance parameters to default if equal"),
1286 ("ip_check", True, ht.TBool, _PIpCheckDoc),
1287 ("conflicts_check", True, ht.TBool, "Check for conflicting IPs"),
1288 ("mode", ht.NoDefault, ht.TElemOf(constants.INSTANCE_CREATE_MODES),
1289 "Instance creation mode"),
1290 ("nics", ht.NoDefault, ht.TListOf(_TestNicDef),
1291 "List of NIC (network interface) definitions, for example"
1292 " ``[{}, {}, {\"%s\": \"198.51.100.4\"}]``; each NIC definition can"
1293 " contain the optional values %s" %
1295 ", ".join("``%s``" % i for i in sorted(constants.INIC_PARAMS)))),
1296 ("no_install", None, ht.TMaybeBool,
1297 "Do not install the OS (will disable automatic start)"),
1298 ("osparams", ht.EmptyDict, ht.TDict, "OS parameters for instance"),
1299 ("os_type", None, ht.TMaybeString, "Operating system"),
1300 ("pnode", None, ht.TMaybeString, "Primary node"),
1301 ("snode", None, ht.TMaybeString, "Secondary node"),
1302 ("source_handshake", None, ht.TMaybe(ht.TList),
1303 "Signed handshake from source (remote import only)"),
1304 ("source_instance_name", None, ht.TMaybeString,
1305 "Source instance name (remote import only)"),
1306 ("source_shutdown_timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT,
1308 "How long source instance was given to shut down (remote import only)"),
1309 ("source_x509_ca", None, ht.TMaybeString,
1310 "Source X509 CA in PEM format (remote import only)"),
1311 ("src_node", None, ht.TMaybeString, "Source node for import"),
1312 ("src_path", None, ht.TMaybeString, "Source directory for import"),
1313 ("start", True, ht.TBool, "Whether to start instance after creation"),
1314 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "Instance tags"),
1316 OP_RESULT = ht.Comment("instance nodes")(ht.TListOf(ht.TNonEmptyString))
1319 class OpInstanceMultiAlloc(OpCode):
1320 """Allocates multiple instances.
1324 _POpportunisticLocking,
1325 _PIAllocFromDesc("Iallocator used to allocate all the instances"),
1326 ("instances", ht.EmptyList, ht.TListOf(ht.TInstanceOf(OpInstanceCreate)),
1327 "List of instance create opcodes describing the instances to allocate"),
1329 _JOB_LIST = ht.Comment("List of submitted jobs")(TJobIdList)
1330 ALLOCATABLE_KEY = "allocatable"
1331 FAILED_KEY = "allocatable"
1332 OP_RESULT = ht.TStrictDict(True, True, {
1333 constants.JOB_IDS_KEY: _JOB_LIST,
1334 ALLOCATABLE_KEY: ht.TListOf(ht.TNonEmptyString),
1335 FAILED_KEY: ht.TListOf(ht.TNonEmptyString),
1338 def __getstate__(self):
1339 """Generic serializer.
1342 state = OpCode.__getstate__(self)
1343 if hasattr(self, "instances"):
1344 # pylint: disable=E1101
1345 state["instances"] = [inst.__getstate__() for inst in self.instances]
1348 def __setstate__(self, state):
1349 """Generic unserializer.
1351 This method just restores from the serialized state the attributes
1352 of the current instance.
1354 @param state: the serialized opcode data
1355 @type state: C{dict}
1358 if not isinstance(state, dict):
1359 raise ValueError("Invalid data to __setstate__: expected dict, got %s" %
1362 if "instances" in state:
1363 state["instances"] = map(OpCode.LoadOpCode, state["instances"])
1365 return OpCode.__setstate__(self, state)
1367 def Validate(self, set_defaults):
1368 """Validates this opcode.
1370 We do this recursively.
1373 OpCode.Validate(self, set_defaults)
1375 for inst in self.instances: # pylint: disable=E1101
1376 inst.Validate(set_defaults)
1379 class OpInstanceReinstall(OpCode):
1380 """Reinstall an instance's OS."""
1381 OP_DSC_FIELD = "instance_name"
1385 ("os_type", None, ht.TMaybeString, "Instance operating system"),
1386 ("osparams", None, ht.TMaybeDict, "Temporary OS parameters"),
1388 OP_RESULT = ht.TNone
1391 class OpInstanceRemove(OpCode):
1392 """Remove an instance."""
1393 OP_DSC_FIELD = "instance_name"
1397 ("ignore_failures", False, ht.TBool,
1398 "Whether to ignore failures during removal"),
1400 OP_RESULT = ht.TNone
1403 class OpInstanceRename(OpCode):
1404 """Rename an instance."""
1408 ("new_name", ht.NoDefault, ht.TNonEmptyString, "New instance name"),
1409 ("ip_check", False, ht.TBool, _PIpCheckDoc),
1411 OP_RESULT = ht.Comment("New instance name")(ht.TNonEmptyString)
1414 class OpInstanceStartup(OpCode):
1415 """Startup an instance."""
1416 OP_DSC_FIELD = "instance_name"
1420 _PIgnoreOfflineNodes,
1421 ("hvparams", ht.EmptyDict, ht.TDict,
1422 "Temporary hypervisor parameters, hypervisor-dependent"),
1423 ("beparams", ht.EmptyDict, ht.TDict, "Temporary backend parameters"),
1427 OP_RESULT = ht.TNone
1430 class OpInstanceShutdown(OpCode):
1431 """Shutdown an instance."""
1432 OP_DSC_FIELD = "instance_name"
1436 _PIgnoreOfflineNodes,
1437 ("timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT, ht.TNonNegativeInt,
1438 "How long to wait for instance to shut down"),
1441 OP_RESULT = ht.TNone
1444 class OpInstanceReboot(OpCode):
1445 """Reboot an instance."""
1446 OP_DSC_FIELD = "instance_name"
1450 ("ignore_secondaries", False, ht.TBool,
1451 "Whether to start the instance even if secondary disks are failing"),
1452 ("reboot_type", ht.NoDefault, ht.TElemOf(constants.REBOOT_TYPES),
1453 "How to reboot instance"),
1454 ("reason", (constants.INSTANCE_REASON_SOURCE_UNKNOWN, None),
1455 ht.TAnd(ht.TOr(ht.TList, ht.TTuple),
1458 ht.TElemOf(constants.INSTANCE_REASON_SOURCES),
1462 "The reason why the reboot is happening"),
1464 OP_RESULT = ht.TNone
1467 class OpInstanceReplaceDisks(OpCode):
1468 """Replace the disks of an instance."""
1469 OP_DSC_FIELD = "instance_name"
1474 ("mode", ht.NoDefault, ht.TElemOf(constants.REPLACE_MODES),
1475 "Replacement mode"),
1476 ("disks", ht.EmptyList, ht.TListOf(ht.TNonNegativeInt),
1478 ("remote_node", None, ht.TMaybeString, "New secondary node"),
1479 _PIAllocFromDesc("Iallocator for deciding new secondary node"),
1481 OP_RESULT = ht.TNone
1484 class OpInstanceFailover(OpCode):
1485 """Failover an instance."""
1486 OP_DSC_FIELD = "instance_name"
1490 _PIgnoreConsistency,
1491 _PMigrationTargetNode,
1493 _PIAllocFromDesc("Iallocator for deciding the target node for"
1494 " shared-storage instances"),
1496 OP_RESULT = ht.TNone
1499 class OpInstanceMigrate(OpCode):
1500 """Migrate an instance.
1502 This migrates (without shutting down an instance) to its secondary
1505 @ivar instance_name: the name of the instance
1506 @ivar mode: the migration mode (live, non-live or None for auto)
1509 OP_DSC_FIELD = "instance_name"
1514 _PMigrationTargetNode,
1517 ("cleanup", False, ht.TBool,
1518 "Whether a previously failed migration should be cleaned up"),
1519 _PIAllocFromDesc("Iallocator for deciding the target node for"
1520 " shared-storage instances"),
1521 ("allow_failover", False, ht.TBool,
1522 "Whether we can fallback to failover if migration is not possible"),
1524 OP_RESULT = ht.TNone
1527 class OpInstanceMove(OpCode):
1528 """Move an instance.
1530 This move (with shutting down an instance and data copying) to an
1533 @ivar instance_name: the name of the instance
1534 @ivar target_node: the destination node
1537 OP_DSC_FIELD = "instance_name"
1542 ("target_node", ht.NoDefault, ht.TNonEmptyString, "Target node"),
1543 _PIgnoreConsistency,
1545 OP_RESULT = ht.TNone
1548 class OpInstanceConsole(OpCode):
1549 """Connect to an instance's console."""
1550 OP_DSC_FIELD = "instance_name"
1554 OP_RESULT = ht.TDict
1557 class OpInstanceActivateDisks(OpCode):
1558 """Activate an instance's disks."""
1559 OP_DSC_FIELD = "instance_name"
1562 ("ignore_size", False, ht.TBool, "Whether to ignore recorded size"),
1565 OP_RESULT = ht.TListOf(ht.TAnd(ht.TIsLength(3),
1566 ht.TItems([ht.TNonEmptyString,
1568 ht.TNonEmptyString])))
1571 class OpInstanceDeactivateDisks(OpCode):
1572 """Deactivate an instance's disks."""
1573 OP_DSC_FIELD = "instance_name"
1578 OP_RESULT = ht.TNone
1581 class OpInstanceRecreateDisks(OpCode):
1582 """Recreate an instance's disks."""
1584 ht.TAnd(ht.TIsLength(2),
1585 ht.TItems([ht.Comment("Disk index")(ht.TNonNegativeInt),
1586 ht.Comment("Parameters")(_TDiskParams)]))
1588 OP_DSC_FIELD = "instance_name"
1591 ("disks", ht.EmptyList,
1592 ht.TOr(ht.TListOf(ht.TNonNegativeInt), ht.TListOf(_TDiskChanges)),
1593 "List of disk indexes (deprecated) or a list of tuples containing a disk"
1594 " index and a possibly empty dictionary with disk parameter changes"),
1595 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1596 "New instance nodes, if relocation is desired"),
1597 _PIAllocFromDesc("Iallocator for deciding new nodes"),
1599 OP_RESULT = ht.TNone
1602 class OpInstanceQuery(OpCode):
1603 """Compute the list of instances."""
1607 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1608 "Empty list to query all instances, instance names otherwise"),
1610 OP_RESULT = _TOldQueryResult
1613 class OpInstanceQueryData(OpCode):
1614 """Compute the run-time status of instances."""
1617 ("instances", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1619 ("static", False, ht.TBool,
1620 "Whether to only return configuration data without querying"
1623 OP_RESULT = ht.TDictOf(ht.TNonEmptyString, ht.TDict)
1626 def _TestInstSetParamsModList(fn):
1627 """Generates a check for modification lists.
1631 # TODO: Remove in version 2.8 including support in LUInstanceSetParams
1633 ht.TAnd(ht.TIsLength(2), ht.TItems([
1634 ht.TOr(ht.TElemOf(constants.DDMS_VALUES), ht.TNonNegativeInt),
1638 # New format, supporting adding/removing disks/NICs at arbitrary indices
1640 ht.TAnd(ht.TIsLength(3), ht.TItems([
1641 ht.TElemOf(constants.DDMS_VALUES_WITH_MODIFY),
1642 ht.Comment("Disk index, can be negative, e.g. -1 for last disk")(ht.TInt),
1646 return ht.TOr(ht.Comment("Recommended")(ht.TListOf(mod_item_fn)),
1647 ht.Comment("Deprecated")(ht.TListOf(old_mod_item_fn)))
1650 class OpInstanceSetParams(OpCode):
1651 """Change the parameters of an instance.
1654 TestNicModifications = _TestInstSetParamsModList(_TestNicDef)
1655 TestDiskModifications = _TestInstSetParamsModList(_TDiskParams)
1657 OP_DSC_FIELD = "instance_name"
1663 ("nics", ht.EmptyList, TestNicModifications,
1664 "List of NIC changes: each item is of the form ``(op, index, settings)``,"
1665 " ``op`` is one of ``%s``, ``%s`` or ``%s``, ``index`` can be either -1"
1666 " to refer to the last position, or a zero-based index number; a"
1667 " deprecated version of this parameter used the form ``(op, settings)``,"
1668 " where ``op`` can be ``%s`` to add a new NIC with the specified"
1669 " settings, ``%s`` to remove the last NIC or a number to modify the"
1670 " settings of the NIC with that index" %
1671 (constants.DDM_ADD, constants.DDM_MODIFY, constants.DDM_REMOVE,
1672 constants.DDM_ADD, constants.DDM_REMOVE)),
1673 ("disks", ht.EmptyList, TestDiskModifications,
1674 "List of disk changes; see ``nics``"),
1675 ("beparams", ht.EmptyDict, ht.TDict, "Per-instance backend parameters"),
1676 ("runtime_mem", None, ht.TMaybePositiveInt, "New runtime memory"),
1677 ("hvparams", ht.EmptyDict, ht.TDict,
1678 "Per-instance hypervisor parameters, hypervisor-dependent"),
1679 ("disk_template", None, ht.TMaybe(_BuildDiskTemplateCheck(False)),
1680 "Disk template for instance"),
1681 ("remote_node", None, ht.TMaybeString,
1682 "Secondary node (used when changing disk template)"),
1683 ("os_name", None, ht.TMaybeString,
1684 "Change the instance's OS without reinstalling the instance"),
1685 ("osparams", None, ht.TMaybeDict, "Per-instance OS parameters"),
1686 ("wait_for_sync", True, ht.TBool,
1687 "Whether to wait for the disk to synchronize, when changing template"),
1688 ("offline", None, ht.TMaybeBool, "Whether to mark instance as offline"),
1689 ("conflicts_check", True, ht.TBool, "Check for conflicting IPs"),
1691 OP_RESULT = _TSetParamsResult
1694 class OpInstanceGrowDisk(OpCode):
1695 """Grow a disk of an instance."""
1696 OP_DSC_FIELD = "instance_name"
1700 ("disk", ht.NoDefault, ht.TInt, "Disk index"),
1701 ("amount", ht.NoDefault, ht.TNonNegativeInt,
1702 "Amount of disk space to add (megabytes)"),
1703 ("absolute", False, ht.TBool,
1704 "Whether the amount parameter is an absolute target or a relative one"),
1706 OP_RESULT = ht.TNone
1709 class OpInstanceChangeGroup(OpCode):
1710 """Moves an instance to another node group."""
1711 OP_DSC_FIELD = "instance_name"
1715 _PIAllocFromDesc("Iallocator for computing solution"),
1718 OP_RESULT = TJobIdListOnly
1721 # Node group opcodes
1723 class OpGroupAdd(OpCode):
1724 """Add a node group to the cluster."""
1725 OP_DSC_FIELD = "group_name"
1728 _PNodeGroupAllocPolicy,
1733 ("ipolicy", None, ht.TMaybeDict,
1734 "Group-wide :ref:`instance policy <rapi-ipolicy>` specs"),
1736 OP_RESULT = ht.TNone
1739 class OpGroupAssignNodes(OpCode):
1740 """Assign nodes to a node group."""
1741 OP_DSC_FIELD = "group_name"
1745 ("nodes", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
1746 "List of nodes to assign"),
1748 OP_RESULT = ht.TNone
1751 class OpGroupQuery(OpCode):
1752 """Compute the list of node groups."""
1755 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1756 "Empty list to query all groups, group names otherwise"),
1758 OP_RESULT = _TOldQueryResult
1761 class OpGroupSetParams(OpCode):
1762 """Change the parameters of a node group."""
1763 OP_DSC_FIELD = "group_name"
1766 _PNodeGroupAllocPolicy,
1771 ("ipolicy", None, ht.TMaybeDict, "Group-wide instance policy specs"),
1773 OP_RESULT = _TSetParamsResult
1776 class OpGroupRemove(OpCode):
1777 """Remove a node group from the cluster."""
1778 OP_DSC_FIELD = "group_name"
1782 OP_RESULT = ht.TNone
1785 class OpGroupRename(OpCode):
1786 """Rename a node group in the cluster."""
1789 ("new_name", ht.NoDefault, ht.TNonEmptyString, "New group name"),
1791 OP_RESULT = ht.Comment("New group name")(ht.TNonEmptyString)
1794 class OpGroupEvacuate(OpCode):
1795 """Evacuate a node group in the cluster."""
1796 OP_DSC_FIELD = "group_name"
1800 _PIAllocFromDesc("Iallocator for computing solution"),
1803 OP_RESULT = TJobIdListOnly
1807 class OpOsDiagnose(OpCode):
1808 """Compute the list of guest operating systems."""
1811 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1812 "Which operating systems to diagnose"),
1814 OP_RESULT = _TOldQueryResult
1817 # ExtStorage opcodes
1818 class OpExtStorageDiagnose(OpCode):
1819 """Compute the list of external storage providers."""
1822 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1823 "Which ExtStorage Provider to diagnose"),
1825 OP_RESULT = _TOldQueryResult
1829 class OpBackupQuery(OpCode):
1830 """Compute the list of exported images."""
1833 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1834 "Empty list to query all nodes, node names otherwise"),
1836 OP_RESULT = ht.TDictOf(ht.TNonEmptyString,
1837 ht.TOr(ht.Comment("False on error")(ht.TBool),
1838 ht.TListOf(ht.TNonEmptyString)))
1841 class OpBackupPrepare(OpCode):
1842 """Prepares an instance export.
1844 @ivar instance_name: Instance name
1845 @ivar mode: Export mode (one of L{constants.EXPORT_MODES})
1848 OP_DSC_FIELD = "instance_name"
1851 ("mode", ht.NoDefault, ht.TElemOf(constants.EXPORT_MODES),
1854 OP_RESULT = ht.TMaybeDict
1857 class OpBackupExport(OpCode):
1858 """Export an instance.
1860 For local exports, the export destination is the node name. For
1861 remote exports, the export destination is a list of tuples, each
1862 consisting of hostname/IP address, port, magic, HMAC and HMAC
1863 salt. The HMAC is calculated using the cluster domain secret over
1864 the value "${index}:${hostname}:${port}". The destination X509 CA
1865 must be a signed certificate.
1867 @ivar mode: Export mode (one of L{constants.EXPORT_MODES})
1868 @ivar target_node: Export destination
1869 @ivar x509_key_name: X509 key to use (remote export only)
1870 @ivar destination_x509_ca: Destination X509 CA in PEM format (remote export
1874 OP_DSC_FIELD = "instance_name"
1878 # TODO: Rename target_node as it changes meaning for different export modes
1879 # (e.g. "destination")
1880 ("target_node", ht.NoDefault, ht.TOr(ht.TNonEmptyString, ht.TList),
1881 "Destination information, depends on export mode"),
1882 ("shutdown", True, ht.TBool, "Whether to shutdown instance before export"),
1883 ("remove_instance", False, ht.TBool,
1884 "Whether to remove instance after export"),
1885 ("ignore_remove_failures", False, ht.TBool,
1886 "Whether to ignore failures while removing instances"),
1887 ("mode", constants.EXPORT_MODE_LOCAL, ht.TElemOf(constants.EXPORT_MODES),
1889 ("x509_key_name", None, ht.TMaybe(ht.TList),
1890 "Name of X509 key (remote export only)"),
1891 ("destination_x509_ca", None, ht.TMaybeString,
1892 "Destination X509 CA (remote export only)"),
1895 ht.TAnd(ht.TIsLength(2), ht.TItems([
1896 ht.Comment("Finalizing status")(ht.TBool),
1897 ht.Comment("Status for every exported disk")(ht.TListOf(ht.TBool)),
1901 class OpBackupRemove(OpCode):
1902 """Remove an instance's export."""
1903 OP_DSC_FIELD = "instance_name"
1907 OP_RESULT = ht.TNone
1911 class OpTagsGet(OpCode):
1912 """Returns the tags of the given object."""
1913 OP_DSC_FIELD = "name"
1916 # Not using _PUseLocking as the default is different for historical reasons
1917 ("use_locking", True, ht.TBool, "Whether to use synchronization"),
1918 # Name is only meaningful for nodes and instances
1919 ("name", ht.NoDefault, ht.TMaybeString,
1920 "Name of object to retrieve tags from"),
1922 OP_RESULT = ht.TListOf(ht.TNonEmptyString)
1925 class OpTagsSearch(OpCode):
1926 """Searches the tags in the cluster for a given pattern."""
1927 OP_DSC_FIELD = "pattern"
1929 ("pattern", ht.NoDefault, ht.TNonEmptyString,
1930 "Search pattern (regular expression)"),
1932 OP_RESULT = ht.TListOf(ht.TAnd(ht.TIsLength(2), ht.TItems([
1938 class OpTagsSet(OpCode):
1939 """Add a list of tags on a given object."""
1943 # Name is only meaningful for groups, nodes and instances
1944 ("name", ht.NoDefault, ht.TMaybeString,
1945 "Name of object where tag(s) should be added"),
1947 OP_RESULT = ht.TNone
1950 class OpTagsDel(OpCode):
1951 """Remove a list of tags from a given object."""
1955 # Name is only meaningful for groups, nodes and instances
1956 ("name", ht.NoDefault, ht.TMaybeString,
1957 "Name of object where tag(s) should be deleted"),
1959 OP_RESULT = ht.TNone
1963 class OpTestDelay(OpCode):
1964 """Sleeps for a configured amount of time.
1966 This is used just for debugging and testing.
1969 - duration: the time to sleep, in seconds
1970 - on_master: if true, sleep on the master
1971 - on_nodes: list of nodes in which to sleep
1973 If the on_master parameter is true, it will execute a sleep on the
1974 master (before any node sleep).
1976 If the on_nodes list is not empty, it will sleep on those nodes
1977 (after the sleep on the master, if that is enabled).
1979 As an additional feature, the case of duration < 0 will be reported
1980 as an execution error, so this opcode can be used as a failure
1981 generator. The case of duration == 0 will not be treated specially.
1984 OP_DSC_FIELD = "duration"
1986 ("duration", ht.NoDefault, ht.TNumber, None),
1987 ("on_master", True, ht.TBool, None),
1988 ("on_nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None),
1989 ("repeat", 0, ht.TNonNegativeInt, None),
1992 def OP_DSC_FORMATTER(self, value): # pylint: disable=C0103,R0201
1993 """Custom formatter for duration.
2003 class OpTestAllocator(OpCode):
2004 """Allocator framework testing.
2006 This opcode has two modes:
2007 - gather and return allocator input for a given mode (allocate new
2008 or replace secondary) and a given instance definition (direction
2010 - run a selected allocator for a given operation (as above) and
2011 return the allocator output (direction 'out')
2014 OP_DSC_FIELD = "iallocator"
2016 ("direction", ht.NoDefault,
2017 ht.TElemOf(constants.VALID_IALLOCATOR_DIRECTIONS), None),
2018 ("mode", ht.NoDefault, ht.TElemOf(constants.VALID_IALLOCATOR_MODES), None),
2019 ("name", ht.NoDefault, ht.TNonEmptyString, None),
2020 ("nics", ht.NoDefault,
2021 ht.TMaybeListOf(ht.TDictOf(ht.TElemOf([constants.INIC_MAC,
2026 ("disks", ht.NoDefault, ht.TMaybe(ht.TList), None),
2027 ("hypervisor", None, ht.TMaybeString, None),
2028 _PIAllocFromDesc(None),
2029 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None),
2030 ("memory", None, ht.TMaybe(ht.TNonNegativeInt), None),
2031 ("vcpus", None, ht.TMaybe(ht.TNonNegativeInt), None),
2032 ("os", None, ht.TMaybeString, None),
2033 ("disk_template", None, ht.TMaybeString, None),
2034 ("instances", None, ht.TMaybeListOf(ht.TNonEmptyString), None),
2036 ht.TMaybe(ht.TElemOf(constants.IALLOCATOR_NEVAC_MODES)), None),
2037 ("target_groups", None, ht.TMaybeListOf(ht.TNonEmptyString), None),
2038 ("spindle_use", 1, ht.TNonNegativeInt, None),
2039 ("count", 1, ht.TNonNegativeInt, None),
2043 class OpTestJqueue(OpCode):
2044 """Utility opcode to test some aspects of the job queue.
2048 ("notify_waitlock", False, ht.TBool, None),
2049 ("notify_exec", False, ht.TBool, None),
2050 ("log_messages", ht.EmptyList, ht.TListOf(ht.TString), None),
2051 ("fail", False, ht.TBool, None),
2055 class OpTestDummy(OpCode):
2056 """Utility opcode used by unittests.
2060 ("result", ht.NoDefault, ht.NoType, None),
2061 ("messages", ht.NoDefault, ht.NoType, None),
2062 ("fail", ht.NoDefault, ht.NoType, None),
2063 ("submit_jobs", None, ht.NoType, None),
2069 # Add a new network in the cluster
2070 class OpNetworkAdd(OpCode):
2071 """Add an IP network to the cluster."""
2072 OP_DSC_FIELD = "network_name"
2075 ("network", ht.NoDefault, _TIpNetwork4, "IPv4 subnet"),
2076 ("gateway", None, ht.TMaybe(_TIpAddress4), "IPv4 gateway"),
2077 ("network6", None, ht.TMaybe(_TIpNetwork6), "IPv6 subnet"),
2078 ("gateway6", None, ht.TMaybe(_TIpAddress6), "IPv6 gateway"),
2079 ("mac_prefix", None, ht.TMaybeString,
2080 "MAC address prefix that overrides cluster one"),
2081 ("add_reserved_ips", None, _TMaybeAddr4List,
2082 "Which IP addresses to reserve"),
2083 ("conflicts_check", True, ht.TBool,
2084 "Whether to check for conflicting IP addresses"),
2085 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "Network tags"),
2087 OP_RESULT = ht.TNone
2090 class OpNetworkRemove(OpCode):
2091 """Remove an existing network from the cluster.
2092 Must not be connected to any nodegroup.
2095 OP_DSC_FIELD = "network_name"
2100 OP_RESULT = ht.TNone
2103 class OpNetworkSetParams(OpCode):
2104 """Modify Network's parameters except for IPv4 subnet"""
2105 OP_DSC_FIELD = "network_name"
2108 ("gateway", None, ht.TMaybeValueNone(_TIpAddress4), "IPv4 gateway"),
2109 ("network6", None, ht.TMaybeValueNone(_TIpNetwork6), "IPv6 subnet"),
2110 ("gateway6", None, ht.TMaybeValueNone(_TIpAddress6), "IPv6 gateway"),
2111 ("mac_prefix", None, ht.TMaybeValueNone(ht.TString),
2112 "MAC address prefix that overrides cluster one"),
2113 ("add_reserved_ips", None, _TMaybeAddr4List,
2114 "Which external IP addresses to reserve"),
2115 ("remove_reserved_ips", None, _TMaybeAddr4List,
2116 "Which external IP addresses to release"),
2118 OP_RESULT = ht.TNone
2121 class OpNetworkConnect(OpCode):
2122 """Connect a Network to a specific Nodegroup with the defined netparams
2123 (mode, link). Nics in this Network will inherit those params.
2124 Produce errors if a NIC (that its not already assigned to a network)
2125 has an IP that is contained in the Network this will produce error unless
2126 --no-conflicts-check is passed.
2129 OP_DSC_FIELD = "network_name"
2133 ("network_mode", ht.NoDefault, ht.TElemOf(constants.NIC_VALID_MODES),
2134 "Connectivity mode"),
2135 ("network_link", ht.NoDefault, ht.TString, "Connectivity link"),
2136 ("conflicts_check", True, ht.TBool, "Whether to check for conflicting IPs"),
2138 OP_RESULT = ht.TNone
2141 class OpNetworkDisconnect(OpCode):
2142 """Disconnect a Network from a Nodegroup. Produce errors if NICs are
2143 present in the Network unless --no-conficts-check option is passed.
2146 OP_DSC_FIELD = "network_name"
2151 OP_RESULT = ht.TNone
2154 class OpNetworkQuery(OpCode):
2155 """Compute the list of networks."""
2159 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
2160 "Empty list to query all groups, group names otherwise"),
2162 OP_RESULT = _TOldQueryResult
2166 """Returns list of all defined opcodes.
2168 Does not eliminate duplicates by C{OP_ID}.
2171 return [v for v in globals().values()
2172 if (isinstance(v, type) and issubclass(v, OpCode) and
2173 hasattr(v, "OP_ID") and v is not OpCode)]
2176 OP_MAPPING = dict((v.OP_ID, v) for v in _GetOpList())