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 #: a instance UUID (for single-instance LUs)
66 _PInstanceUuid = ("instance_uuid", None, ht.TMaybeString,
69 #: Whether to ignore offline nodes
70 _PIgnoreOfflineNodes = ("ignore_offline_nodes", False, ht.TBool,
71 "Whether to ignore offline nodes")
73 #: a required node name (for single-node LUs)
74 _PNodeName = ("node_name", ht.NoDefault, ht.TNonEmptyString, "Node name")
76 #: a node UUID (for use with _PNodeName)
77 _PNodeUuid = ("node_uuid", None, ht.TMaybeString, "Node UUID")
79 #: a required node group name (for single-group LUs)
80 _PGroupName = ("group_name", ht.NoDefault, ht.TNonEmptyString, "Group name")
82 #: Migration type (live/non-live)
83 _PMigrationMode = ("mode", None,
84 ht.TMaybe(ht.TElemOf(constants.HT_MIGRATION_MODES)),
87 #: Obsolete 'live' migration mode (boolean)
88 _PMigrationLive = ("live", None, ht.TMaybeBool,
89 "Legacy setting for live migration, do not use")
92 _PTagKind = ("kind", ht.NoDefault, ht.TElemOf(constants.VALID_TAG_TYPES),
95 #: List of tag strings
96 _PTags = ("tags", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
99 _PForceVariant = ("force_variant", False, ht.TBool,
100 "Whether to force an unknown OS variant")
102 _PWaitForSync = ("wait_for_sync", True, ht.TBool,
103 "Whether to wait for the disk to synchronize")
105 _PWaitForSyncFalse = ("wait_for_sync", False, ht.TBool,
106 "Whether to wait for the disk to synchronize"
107 " (defaults to false)")
109 _PIgnoreConsistency = ("ignore_consistency", False, ht.TBool,
110 "Whether to ignore disk consistency")
112 _PStorageName = ("name", ht.NoDefault, ht.TMaybeString, "Storage name")
114 _PUseLocking = ("use_locking", False, ht.TBool,
115 "Whether to use synchronization")
117 _PNameCheck = ("name_check", True, ht.TBool, "Whether to check name")
119 _PNodeGroupAllocPolicy = \
120 ("alloc_policy", None,
121 ht.TMaybe(ht.TElemOf(constants.VALID_ALLOC_POLICIES)),
122 "Instance allocation policy")
124 _PGroupNodeParams = ("ndparams", None, ht.TMaybeDict,
125 "Default node parameters for group")
127 _PQueryWhat = ("what", ht.NoDefault, ht.TElemOf(constants.QR_VIA_OP),
128 "Resource(s) to query for")
130 _PEarlyRelease = ("early_release", False, ht.TBool,
131 "Whether to release locks as soon as possible")
133 _PIpCheckDoc = "Whether to ensure instance's IP address is inactive"
135 #: Do not remember instance state changes
136 _PNoRemember = ("no_remember", False, ht.TBool,
137 "Do not remember the state change")
139 #: Target node for instance migration/failover
140 _PMigrationTargetNode = ("target_node", None, ht.TMaybeString,
141 "Target node for shared-storage instances")
143 _PMigrationTargetNodeUuid = ("target_node_uuid", None, ht.TMaybeString,
144 "Target node UUID for shared-storage instances")
146 _PStartupPaused = ("startup_paused", False, ht.TBool,
147 "Pause instance at startup")
149 _PVerbose = ("verbose", False, ht.TBool, "Verbose mode")
151 # Parameters for cluster verification
152 _PDebugSimulateErrors = ("debug_simulate_errors", False, ht.TBool,
153 "Whether to simulate errors (useful for debugging)")
154 _PErrorCodes = ("error_codes", False, ht.TBool, "Error codes")
155 _PSkipChecks = ("skip_checks", ht.EmptyList,
156 ht.TListOf(ht.TElemOf(constants.VERIFY_OPTIONAL_CHECKS)),
157 "Which checks to skip")
158 _PIgnoreErrors = ("ignore_errors", ht.EmptyList,
159 ht.TListOf(ht.TElemOf(constants.CV_ALL_ECODES_STRINGS)),
160 "List of error codes that should be treated as warnings")
165 ht.TMaybe(ht.TDictOf(ht.TElemOf(constants.DISK_TEMPLATES), ht.TDict)),
166 "Disk templates' parameter defaults")
168 # Parameters for node resource model
169 _PHvState = ("hv_state", None, ht.TMaybeDict, "Set hypervisor states")
170 _PDiskState = ("disk_state", None, ht.TMaybeDict, "Set disk states")
172 #: Opportunistic locking
173 _POpportunisticLocking = \
174 ("opportunistic_locking", False, ht.TBool,
175 ("Whether to employ opportunistic locking for nodes, meaning nodes"
176 " already locked by another opcode won't be considered for instance"
177 " allocation (only when an iallocator is used)"))
179 _PIgnoreIpolicy = ("ignore_ipolicy", False, ht.TBool,
180 "Whether to ignore ipolicy violations")
182 # Allow runtime changes while migrating
183 _PAllowRuntimeChgs = ("allow_runtime_changes", True, ht.TBool,
184 "Allow runtime changes (eg. memory ballooning)")
186 #: IAllocator field builder
187 _PIAllocFromDesc = lambda desc: ("iallocator", None, ht.TMaybeString, desc)
189 #: a required network name
190 _PNetworkName = ("network_name", ht.NoDefault, ht.TNonEmptyString,
194 ("target_groups", None, ht.TMaybeListOf(ht.TNonEmptyString),
195 "Destination group names or UUIDs (defaults to \"all but current group\")")
197 #: OP_ID conversion regular expression
198 _OPID_RE = re.compile("([a-z])([A-Z])")
200 #: Utility function for L{OpClusterSetParams}
201 _TestClusterOsListItem = \
202 ht.TAnd(ht.TIsLength(2), ht.TItems([
203 ht.TElemOf(constants.DDMS_VALUES),
207 _TestClusterOsList = ht.TMaybeListOf(_TestClusterOsListItem)
209 # TODO: Generate check from constants.INIC_PARAMS_TYPES
210 #: Utility function for testing NIC definitions
212 ht.Comment("NIC parameters")(ht.TDictOf(ht.TElemOf(constants.INIC_PARAMS),
215 _TSetParamsResultItemItems = [
216 ht.Comment("name of changed parameter")(ht.TNonEmptyString),
217 ht.Comment("new value")(ht.TAny),
220 _TSetParamsResult = \
221 ht.TListOf(ht.TAnd(ht.TIsLength(len(_TSetParamsResultItemItems)),
222 ht.TItems(_TSetParamsResultItemItems)))
224 # In the disks option we can provide arbitrary parameters too, which
225 # we may not be able to validate at this level, so we just check the
226 # format of the dict here and the checks concerning IDISK_PARAMS will
227 # happen at the LU level
229 ht.Comment("Disk parameters")(ht.TDictOf(ht.TNonEmptyString,
230 ht.TOr(ht.TNonEmptyString, ht.TInt)))
233 ht.TListOf(ht.TAnd(ht.TIsLength(2),
234 ht.TItems([ht.TElemOf(constants.RS_ALL),
237 _TQueryResult = ht.TListOf(_TQueryRow)
239 _TOldQueryRow = ht.TListOf(ht.TAny)
241 _TOldQueryResult = ht.TListOf(_TOldQueryRow)
251 #: Attribute name for dependencies
252 DEPEND_ATTR = "depends"
254 #: Attribute name for comment
255 COMMENT_ATTR = "comment"
258 def _NameComponents(name):
259 """Split an opcode class name into its components
262 @param name: the class name, as OpXxxYyy
263 @rtype: array of strings
264 @return: the components of the name
267 assert name.startswith("Op")
268 # Note: (?<=[a-z])(?=[A-Z]) would be ideal, since it wouldn't
269 # consume any input, and hence we would just have all the elements
270 # in the list, one by one; but it seems that split doesn't work on
271 # non-consuming input, hence we have to process the input string a
273 name = _OPID_RE.sub(r"\1,\2", name)
274 elems = name.split(",")
279 """Convert an opcode class name to an OP_ID.
282 @param name: the class name, as OpXxxYyy
284 @return: the name in the OP_XXXX_YYYY format
287 if not name.startswith("Op"):
289 return "_".join(n.upper() for n in _NameComponents(name))
292 def NameToReasonSrc(name):
293 """Convert an opcode class name to a source string for the reason trail
296 @param name: the class name, as OpXxxYyy
298 @return: the name in the OP_XXXX_YYYY format
301 if not name.startswith("Op"):
303 return "%s:%s" % (constants.OPCODE_REASON_SRC_OPCODE,
304 "_".join(n.lower() for n in _NameComponents(name)))
307 def _GenerateObjectTypeCheck(obj, fields_types):
308 """Helper to generate type checks for objects.
310 @param obj: The object to generate type checks
311 @param fields_types: The fields and their types as a dict
312 @return: A ht type check function
315 assert set(obj.GetAllSlots()) == set(fields_types.keys()), \
316 "%s != %s" % (set(obj.GetAllSlots()), set(fields_types.keys()))
317 return ht.TStrictDict(True, True, fields_types)
321 _GenerateObjectTypeCheck(objects.QueryFieldDefinition, {
322 "name": ht.TNonEmptyString,
323 "title": ht.TNonEmptyString,
324 "kind": ht.TElemOf(constants.QFT_ALL),
325 "doc": ht.TNonEmptyString,
329 def RequireSharedFileStorage():
330 """Checks that shared file storage is enabled.
332 While it doesn't really fit into this module, L{utils} was deemed too large
333 of a dependency to be imported for just one or two functions.
335 @raise errors.OpPrereqError: when shared file storage is disabled
338 if not constants.ENABLE_SHARED_FILE_STORAGE:
339 raise errors.OpPrereqError("Shared file storage disabled at"
340 " configure time", errors.ECODE_INVAL)
343 def _BuildDiskTemplateCheck(accept_none):
344 """Builds check for disk template.
346 @type accept_none: bool
347 @param accept_none: whether to accept None as a correct value
351 template_check = ht.TElemOf(constants.DISK_TEMPLATES)
354 template_check = ht.TMaybe(template_check)
356 return template_check
359 def _CheckStorageType(storage_type):
360 """Ensure a given storage type is valid.
363 if storage_type not in constants.VALID_STORAGE_TYPES:
364 raise errors.OpPrereqError("Unknown storage type: %s" % storage_type,
369 #: Storage type parameter
370 _PStorageType = ("storage_type", ht.NoDefault, _CheckStorageType,
374 @ht.WithDesc("IPv4 network")
375 def _CheckCIDRNetNotation(value):
376 """Ensure a given CIDR notation type is valid.
380 ipaddr.IPv4Network(value)
381 except ipaddr.AddressValueError:
386 @ht.WithDesc("IPv4 address")
387 def _CheckCIDRAddrNotation(value):
388 """Ensure a given CIDR notation type is valid.
392 ipaddr.IPv4Address(value)
393 except ipaddr.AddressValueError:
398 @ht.WithDesc("IPv6 address")
399 def _CheckCIDR6AddrNotation(value):
400 """Ensure a given CIDR notation type is valid.
404 ipaddr.IPv6Address(value)
405 except ipaddr.AddressValueError:
410 @ht.WithDesc("IPv6 network")
411 def _CheckCIDR6NetNotation(value):
412 """Ensure a given CIDR notation type is valid.
416 ipaddr.IPv6Network(value)
417 except ipaddr.AddressValueError:
422 _TIpAddress4 = ht.TAnd(ht.TString, _CheckCIDRAddrNotation)
423 _TIpAddress6 = ht.TAnd(ht.TString, _CheckCIDR6AddrNotation)
424 _TIpNetwork4 = ht.TAnd(ht.TString, _CheckCIDRNetNotation)
425 _TIpNetwork6 = ht.TAnd(ht.TString, _CheckCIDR6NetNotation)
426 _TMaybeAddr4List = ht.TMaybe(ht.TListOf(_TIpAddress4))
429 class _AutoOpParamSlots(outils.AutoSlots):
430 """Meta class for opcode definitions.
433 def __new__(mcs, name, bases, attrs):
434 """Called when a class should be created.
436 @param mcs: The meta class
437 @param name: Name of created class
438 @param bases: Base classes
440 @param attrs: Class attributes
443 assert "OP_ID" not in attrs, "Class '%s' defining OP_ID" % name
445 slots = mcs._GetSlots(attrs)
446 assert "OP_DSC_FIELD" not in attrs or attrs["OP_DSC_FIELD"] in slots, \
447 "Class '%s' uses unknown field in OP_DSC_FIELD" % name
448 assert ("OP_DSC_FORMATTER" not in attrs or
449 callable(attrs["OP_DSC_FORMATTER"])), \
450 ("Class '%s' uses non-callable in OP_DSC_FORMATTER (%s)" %
451 (name, type(attrs["OP_DSC_FORMATTER"])))
453 attrs["OP_ID"] = _NameToId(name)
455 return outils.AutoSlots.__new__(mcs, name, bases, attrs)
458 def _GetSlots(mcs, attrs):
459 """Build the slots out of OP_PARAMS.
462 # Always set OP_PARAMS to avoid duplicates in BaseOpCode.GetAllParams
463 params = attrs.setdefault("OP_PARAMS", [])
465 # Use parameter names as slots
466 return [pname for (pname, _, _, _) in params]
469 class BaseOpCode(outils.ValidatedSlots):
470 """A simple serializable object.
472 This object serves as a parent class for OpCode without any custom
476 # pylint: disable=E1101
477 # as OP_ID is dynamically defined
478 __metaclass__ = _AutoOpParamSlots
480 def __getstate__(self):
481 """Generic serializer.
483 This method just returns the contents of the instance as a
487 @return: the instance attributes and their values
491 for name in self.GetAllSlots():
492 if hasattr(self, name):
493 state[name] = getattr(self, name)
496 def __setstate__(self, state):
497 """Generic unserializer.
499 This method just restores from the serialized state the attributes
500 of the current instance.
502 @param state: the serialized opcode data
506 if not isinstance(state, dict):
507 raise ValueError("Invalid data to __setstate__: expected dict, got %s" %
510 for name in self.GetAllSlots():
511 if name not in state and hasattr(self, name):
515 setattr(self, name, state[name])
518 def GetAllParams(cls):
519 """Compute list of all parameters for an opcode.
523 for parent in cls.__mro__:
524 slots.extend(getattr(parent, "OP_PARAMS", []))
527 def Validate(self, set_defaults): # pylint: disable=W0221
528 """Validate opcode parameters, optionally setting default values.
530 @type set_defaults: bool
531 @param set_defaults: Whether to set default values
532 @raise errors.OpPrereqError: When a parameter value doesn't match
536 for (attr_name, default, test, _) in self.GetAllParams():
537 assert test == ht.NoType or callable(test)
539 if not hasattr(self, attr_name):
540 if default == ht.NoDefault:
541 raise errors.OpPrereqError("Required parameter '%s.%s' missing" %
542 (self.OP_ID, attr_name),
545 if callable(default):
549 setattr(self, attr_name, dval)
551 if test == ht.NoType:
555 if set_defaults or hasattr(self, attr_name):
556 attr_val = getattr(self, attr_name)
557 if not test(attr_val):
558 logging.error("OpCode %s, parameter %s, has invalid type %s/value"
559 " '%s' expecting type %s",
560 self.OP_ID, attr_name, type(attr_val), attr_val, test)
561 raise errors.OpPrereqError("Parameter '%s.%s' fails validation" %
562 (self.OP_ID, attr_name),
566 def _BuildJobDepCheck(relative):
567 """Builds check for job dependencies (L{DEPEND_ATTR}).
570 @param relative: Whether to accept relative job IDs (negative)
575 job_id = ht.TOr(ht.TJobId, ht.TRelativeJobId)
580 ht.TAnd(ht.TOr(ht.TList, ht.TTuple),
583 ht.TListOf(ht.TElemOf(constants.JOBS_FINALIZED))]))
585 return ht.TMaybeListOf(job_dep)
588 TNoRelativeJobDependencies = _BuildJobDepCheck(False)
590 #: List of submission status and job ID as returned by C{SubmitManyJobs}
592 ht.TAnd(ht.TIsLength(2),
593 ht.TItems([ht.Comment("success")(ht.TBool),
594 ht.Comment("Job ID if successful, error message"
595 " otherwise")(ht.TOr(ht.TString,
597 TJobIdList = ht.TListOf(_TJobIdListItem)
599 #: Result containing only list of submitted jobs
600 TJobIdListOnly = ht.TStrictDict(True, True, {
601 constants.JOB_IDS_KEY: ht.Comment("List of submitted jobs")(TJobIdList),
605 class OpCode(BaseOpCode):
608 This is the root of the actual OpCode hierarchy. All clases derived
609 from this class should override OP_ID.
611 @cvar OP_ID: The ID of this opcode. This should be unique amongst all
612 children of this class.
613 @cvar OP_DSC_FIELD: The name of a field whose value will be included in the
614 string returned by Summary(); see the docstring of that
616 @cvar OP_DSC_FORMATTER: A callable that should format the OP_DSC_FIELD; if
617 not present, then the field will be simply converted
619 @cvar OP_PARAMS: List of opcode attributes, the default values they should
620 get if not already defined, and types they must match.
621 @cvar OP_RESULT: Callable to verify opcode result
622 @cvar WITH_LU: Boolean that specifies whether this should be included in
623 mcpu's dispatch table
624 @ivar dry_run: Whether the LU should be run in dry-run mode, i.e. just
626 @ivar priority: Opcode priority for queue
629 # pylint: disable=E1101
630 # as OP_ID is dynamically defined
633 ("dry_run", None, ht.TMaybeBool, "Run checks only, don't execute"),
634 ("debug_level", None, ht.TMaybe(ht.TNonNegativeInt), "Debug level"),
635 ("priority", constants.OP_PRIO_DEFAULT,
636 ht.TElemOf(constants.OP_PRIO_SUBMIT_VALID), "Opcode priority"),
637 (DEPEND_ATTR, None, _BuildJobDepCheck(True),
638 "Job dependencies; if used through ``SubmitManyJobs`` relative (negative)"
639 " job IDs can be used; see :doc:`design document <design-chained-jobs>`"
641 (COMMENT_ATTR, None, ht.TMaybeString,
642 "Comment describing the purpose of the opcode"),
643 (constants.OPCODE_REASON, None, ht.TMaybeList,
644 "The reason trail, describing why the OpCode is executed"),
648 def __getstate__(self):
649 """Specialized getstate for opcodes.
651 This method adds to the state dictionary the OP_ID of the class,
652 so that on unload we can identify the correct class for
653 instantiating the opcode.
656 @return: the state as a dictionary
659 data = BaseOpCode.__getstate__(self)
660 data["OP_ID"] = self.OP_ID
664 def LoadOpCode(cls, data):
665 """Generic load opcode method.
667 The method identifies the correct opcode class from the dict-form
668 by looking for a OP_ID key, if this is not found, or its value is
669 not available in this module as a child of this class, we fail.
672 @param data: the serialized opcode
675 if not isinstance(data, dict):
676 raise ValueError("Invalid data to LoadOpCode (%s)" % type(data))
677 if "OP_ID" not in data:
678 raise ValueError("Invalid data to LoadOpcode, missing OP_ID")
679 op_id = data["OP_ID"]
681 if op_id in OP_MAPPING:
682 op_class = OP_MAPPING[op_id]
684 raise ValueError("Invalid data to LoadOpCode: OP_ID %s unsupported" %
687 new_data = data.copy()
688 del new_data["OP_ID"]
689 op.__setstate__(new_data)
693 """Generates a summary description of this opcode.
695 The summary is the value of the OP_ID attribute (without the "OP_"
696 prefix), plus the value of the OP_DSC_FIELD attribute, if one was
697 defined; this field should allow to easily identify the operation
698 (for an instance creation job, e.g., it would be the instance
702 assert self.OP_ID is not None and len(self.OP_ID) > 3
703 # all OP_ID start with OP_, we remove that
705 field_name = getattr(self, "OP_DSC_FIELD", None)
707 field_value = getattr(self, field_name, None)
708 field_formatter = getattr(self, "OP_DSC_FORMATTER", None)
709 if callable(field_formatter):
710 field_value = field_formatter(field_value)
711 elif isinstance(field_value, (list, tuple)):
712 field_value = ",".join(str(i) for i in field_value)
713 txt = "%s(%s)" % (txt, field_value)
716 def TinySummary(self):
717 """Generates a compact summary description of the opcode.
720 assert self.OP_ID.startswith("OP_")
722 text = self.OP_ID[3:]
724 for (prefix, supplement) in _SUMMARY_PREFIX.items():
725 if text.startswith(prefix):
726 return supplement + text[len(prefix):]
733 class OpClusterPostInit(OpCode):
734 """Post cluster initialization.
736 This opcode does not touch the cluster at all. Its purpose is to run hooks
737 after the cluster has been initialized.
743 class OpClusterDestroy(OpCode):
744 """Destroy the cluster.
746 This opcode has no other parameters. All the state is irreversibly
747 lost after the execution of this opcode.
750 OP_RESULT = ht.TNonEmptyString
753 class OpClusterQuery(OpCode):
754 """Query cluster information."""
755 OP_RESULT = ht.TDictOf(ht.TNonEmptyString, ht.TAny)
758 class OpClusterVerify(OpCode):
759 """Submits all jobs necessary to verify the cluster.
763 _PDebugSimulateErrors,
768 ("group_name", None, ht.TMaybeString, "Group to verify"),
770 OP_RESULT = TJobIdListOnly
773 class OpClusterVerifyConfig(OpCode):
774 """Verify the cluster config.
778 _PDebugSimulateErrors,
786 class OpClusterVerifyGroup(OpCode):
787 """Run verify on a node group from the cluster.
789 @type skip_checks: C{list}
790 @ivar skip_checks: steps to be skipped from the verify process; this
791 needs to be a subset of
792 L{constants.VERIFY_OPTIONAL_CHECKS}; currently
793 only L{constants.VERIFY_NPLUSONE_MEM} can be passed
796 OP_DSC_FIELD = "group_name"
799 _PDebugSimulateErrors,
808 class OpClusterVerifyDisks(OpCode):
809 """Verify the cluster disks.
812 OP_RESULT = TJobIdListOnly
815 class OpGroupVerifyDisks(OpCode):
816 """Verifies the status of all disks in a node group.
818 Result: a tuple of three elements:
819 - dict of node names with issues (values: error msg)
820 - list of instances with degraded disks (that should be activated)
821 - dict of instances with missing logical volumes (values: (node, vol)
822 pairs with details about the missing volumes)
824 In normal operation, all lists should be empty. A non-empty instance
825 list (3rd element of the result) is still ok (errors were fixed) but
826 non-empty node list means some node is down, and probably there are
827 unfixable drbd errors.
829 Note that only instances that are drbd-based are taken into
830 consideration. This might need to be revisited in the future.
833 OP_DSC_FIELD = "group_name"
838 ht.TAnd(ht.TIsLength(3),
839 ht.TItems([ht.TDictOf(ht.TString, ht.TString),
840 ht.TListOf(ht.TString),
841 ht.TDictOf(ht.TString,
842 ht.TListOf(ht.TListOf(ht.TString)))]))
845 class OpClusterRepairDiskSizes(OpCode):
846 """Verify the disk sizes of the instances and fixes configuration
849 Parameters: optional instances list, in case we want to restrict the
850 checks to only a subset of the instances.
852 Result: a list of tuples, (instance, disk, parameter, new-size) for changed
855 In normal operation, the list should be empty.
857 @type instances: list
858 @ivar instances: the list of instances to check, or empty for all instances
862 ("instances", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None),
864 OP_RESULT = ht.TListOf(ht.TAnd(ht.TIsLength(4),
865 ht.TItems([ht.TNonEmptyString,
868 ht.TNonNegativeInt])))
871 class OpClusterConfigQuery(OpCode):
872 """Query cluster configuration values."""
876 OP_RESULT = ht.TListOf(ht.TAny)
879 class OpClusterRename(OpCode):
880 """Rename the cluster.
883 @ivar name: The new name of the cluster. The name and/or the master IP
884 address will be changed to match the new name and its IP
888 OP_DSC_FIELD = "name"
890 ("name", ht.NoDefault, ht.TNonEmptyString, None),
892 OP_RESULT = ht.TNonEmptyString
895 class OpClusterSetParams(OpCode):
896 """Change the parameters of the cluster.
898 @type vg_name: C{str} or C{None}
899 @ivar vg_name: The new volume group name or None to disable LVM usage.
906 ("vg_name", None, ht.TMaybe(ht.TString), "Volume group name"),
907 ("enabled_hypervisors", None,
908 ht.TMaybe(ht.TAnd(ht.TListOf(ht.TElemOf(constants.HYPER_TYPES)),
910 "List of enabled hypervisors"),
912 ht.TMaybe(ht.TDictOf(ht.TNonEmptyString, ht.TDict)),
913 "Cluster-wide hypervisor parameter defaults, hypervisor-dependent"),
914 ("beparams", None, ht.TMaybeDict,
915 "Cluster-wide backend parameter defaults"),
916 ("os_hvp", None, ht.TMaybe(ht.TDictOf(ht.TNonEmptyString, ht.TDict)),
917 "Cluster-wide per-OS hypervisor parameter defaults"),
919 ht.TMaybe(ht.TDictOf(ht.TNonEmptyString, ht.TDict)),
920 "Cluster-wide OS parameter defaults"),
922 ("candidate_pool_size", None, ht.TMaybe(ht.TPositiveInt),
923 "Master candidate pool size"),
924 ("uid_pool", None, ht.NoType,
925 "Set UID pool, must be list of lists describing UID ranges (two items,"
926 " start and end inclusive)"),
927 ("add_uids", None, ht.NoType,
928 "Extend UID pool, must be list of lists describing UID ranges (two"
929 " items, start and end inclusive) to be added"),
930 ("remove_uids", None, ht.NoType,
931 "Shrink UID pool, must be list of lists describing UID ranges (two"
932 " items, start and end inclusive) to be removed"),
933 ("maintain_node_health", None, ht.TMaybeBool,
934 "Whether to automatically maintain node health"),
935 ("prealloc_wipe_disks", None, ht.TMaybeBool,
936 "Whether to wipe disks before allocating them to instances"),
937 ("nicparams", None, ht.TMaybeDict, "Cluster-wide NIC parameter defaults"),
938 ("ndparams", None, ht.TMaybeDict, "Cluster-wide node parameter defaults"),
939 ("ipolicy", None, ht.TMaybeDict,
940 "Cluster-wide :ref:`instance policy <rapi-ipolicy>` specs"),
941 ("drbd_helper", None, ht.TMaybe(ht.TString), "DRBD helper program"),
942 ("default_iallocator", None, ht.TMaybe(ht.TString),
943 "Default iallocator for cluster"),
944 ("master_netdev", None, ht.TMaybe(ht.TString),
945 "Master network device"),
946 ("master_netmask", None, ht.TMaybe(ht.TNonNegativeInt),
947 "Netmask of the master IP"),
948 ("reserved_lvs", None, ht.TMaybeListOf(ht.TNonEmptyString),
949 "List of reserved LVs"),
950 ("hidden_os", None, _TestClusterOsList,
951 "Modify list of hidden operating systems: each modification must have"
952 " two items, the operation and the OS name; the operation can be"
953 " ``%s`` or ``%s``" % (constants.DDM_ADD, constants.DDM_REMOVE)),
954 ("blacklisted_os", None, _TestClusterOsList,
955 "Modify list of blacklisted operating systems: each modification must"
956 " have two items, the operation and the OS name; the operation can be"
957 " ``%s`` or ``%s``" % (constants.DDM_ADD, constants.DDM_REMOVE)),
958 ("use_external_mip_script", None, ht.TMaybeBool,
959 "Whether to use an external master IP address setup script"),
960 ("enabled_disk_templates", None,
961 ht.TMaybe(ht.TAnd(ht.TListOf(ht.TElemOf(constants.DISK_TEMPLATES)),
963 "List of enabled disk templates"),
964 ("modify_etc_hosts", None, ht.TMaybeBool,
965 "Whether the cluster can modify and keep in sync the /etc/hosts files"),
970 class OpClusterRedistConf(OpCode):
971 """Force a full push of the cluster configuration.
977 class OpClusterActivateMasterIp(OpCode):
978 """Activate the master IP on the master node.
984 class OpClusterDeactivateMasterIp(OpCode):
985 """Deactivate the master IP on the master node.
991 class OpQuery(OpCode):
992 """Query for resources/items.
994 @ivar what: Resources to query for, must be one of L{constants.QR_VIA_OP}
995 @ivar fields: List of fields to retrieve
996 @ivar qfilter: Query filter
999 OP_DSC_FIELD = "what"
1003 ("fields", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
1004 "Requested fields"),
1005 ("qfilter", None, ht.TMaybe(ht.TList),
1009 _GenerateObjectTypeCheck(objects.QueryResponse, {
1010 "fields": ht.TListOf(_TQueryFieldDef),
1011 "data": _TQueryResult,
1015 class OpQueryFields(OpCode):
1016 """Query for available resource/item fields.
1018 @ivar what: Resources to query for, must be one of L{constants.QR_VIA_OP}
1019 @ivar fields: List of fields to retrieve
1022 OP_DSC_FIELD = "what"
1025 ("fields", None, ht.TMaybeListOf(ht.TNonEmptyString),
1026 "Requested fields; if not given, all are returned"),
1029 _GenerateObjectTypeCheck(objects.QueryFieldsResponse, {
1030 "fields": ht.TListOf(_TQueryFieldDef),
1034 class OpOobCommand(OpCode):
1035 """Interact with OOB."""
1037 ("node_names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1038 "List of node names to run the OOB command against"),
1039 ("node_uuids", None, ht.TMaybeListOf(ht.TNonEmptyString),
1040 "List of node UUIDs to run the OOB command against"),
1041 ("command", ht.NoDefault, ht.TElemOf(constants.OOB_COMMANDS),
1042 "OOB command to be run"),
1043 ("timeout", constants.OOB_TIMEOUT, ht.TInt,
1044 "Timeout before the OOB helper will be terminated"),
1045 ("ignore_status", False, ht.TBool,
1046 "Ignores the node offline status for power off"),
1047 ("power_delay", constants.OOB_POWER_DELAY, ht.TNonNegativeFloat,
1048 "Time in seconds to wait between powering on nodes"),
1050 # Fixme: Make it more specific with all the special cases in LUOobCommand
1051 OP_RESULT = _TQueryResult
1054 class OpRestrictedCommand(OpCode):
1055 """Runs a restricted command on node(s).
1060 ("nodes", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
1061 "Nodes on which the command should be run (at least one)"),
1062 ("node_uuids", None, ht.TMaybeListOf(ht.TNonEmptyString),
1063 "Node UUIDs on which the command should be run (at least one)"),
1064 ("command", ht.NoDefault, ht.TNonEmptyString,
1065 "Command name (no parameters)"),
1069 ht.Comment("success")(ht.TBool),
1070 ht.Comment("output or error message")(ht.TString),
1074 ht.TListOf(ht.TAnd(ht.TIsLength(len(_RESULT_ITEMS)),
1075 ht.TItems(_RESULT_ITEMS)))
1080 class OpNodeRemove(OpCode):
1083 @type node_name: C{str}
1084 @ivar node_name: The name of the node to remove. If the node still has
1085 instances on it, the operation will fail.
1088 OP_DSC_FIELD = "node_name"
1093 OP_RESULT = ht.TNone
1096 class OpNodeAdd(OpCode):
1097 """Add a node to the cluster.
1099 @type node_name: C{str}
1100 @ivar node_name: The name of the node to add. This can be a short name,
1101 but it will be expanded to the FQDN.
1102 @type primary_ip: IP address
1103 @ivar primary_ip: The primary IP of the node. This will be ignored when the
1104 opcode is submitted, but will be filled during the node
1105 add (so it will be visible in the job query).
1106 @type secondary_ip: IP address
1107 @ivar secondary_ip: The secondary IP of the node. This needs to be passed
1108 if the cluster has been initialized in 'dual-network'
1109 mode, otherwise it must not be given.
1110 @type readd: C{bool}
1111 @ivar readd: Whether to re-add an existing node to the cluster. If
1112 this is not passed, then the operation will abort if the node
1113 name is already in the cluster; use this parameter to 'repair'
1114 a node that had its configuration broken, or was reinstalled
1115 without removal from the cluster.
1117 @ivar group: The node group to which this node will belong.
1118 @type vm_capable: C{bool}
1119 @ivar vm_capable: The vm_capable node attribute
1120 @type master_capable: C{bool}
1121 @ivar master_capable: The master_capable node attribute
1124 OP_DSC_FIELD = "node_name"
1129 ("primary_ip", None, ht.NoType, "Primary IP address"),
1130 ("secondary_ip", None, ht.TMaybeString, "Secondary IP address"),
1131 ("readd", False, ht.TBool, "Whether node is re-added to cluster"),
1132 ("group", None, ht.TMaybeString, "Initial node group"),
1133 ("master_capable", None, ht.TMaybeBool,
1134 "Whether node can become master or master candidate"),
1135 ("vm_capable", None, ht.TMaybeBool,
1136 "Whether node can host instances"),
1137 ("ndparams", None, ht.TMaybeDict, "Node parameters"),
1139 OP_RESULT = ht.TNone
1142 class OpNodeQuery(OpCode):
1143 """Compute the list of nodes."""
1147 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1148 "Empty list to query all nodes, node names otherwise"),
1150 OP_RESULT = _TOldQueryResult
1153 class OpNodeQueryvols(OpCode):
1154 """Get list of volumes on node."""
1157 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1158 "Empty list to query all nodes, node names otherwise"),
1160 OP_RESULT = ht.TListOf(ht.TAny)
1163 class OpNodeQueryStorage(OpCode):
1164 """Get information on storage for node(s)."""
1168 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "List of nodes"),
1169 ("name", None, ht.TMaybeString, "Storage name"),
1171 OP_RESULT = _TOldQueryResult
1174 class OpNodeModifyStorage(OpCode):
1175 """Modifies the properies of a storage unit"""
1176 OP_DSC_FIELD = "node_name"
1182 ("changes", ht.NoDefault, ht.TDict, "Requested changes"),
1184 OP_RESULT = ht.TNone
1187 class OpRepairNodeStorage(OpCode):
1188 """Repairs the volume group on a node."""
1189 OP_DSC_FIELD = "node_name"
1195 _PIgnoreConsistency,
1197 OP_RESULT = ht.TNone
1200 class OpNodeSetParams(OpCode):
1201 """Change the parameters of a node."""
1202 OP_DSC_FIELD = "node_name"
1209 ("master_candidate", None, ht.TMaybeBool,
1210 "Whether the node should become a master candidate"),
1211 ("offline", None, ht.TMaybeBool,
1212 "Whether the node should be marked as offline"),
1213 ("drained", None, ht.TMaybeBool,
1214 "Whether the node should be marked as drained"),
1215 ("auto_promote", False, ht.TBool,
1216 "Whether node(s) should be promoted to master candidate if necessary"),
1217 ("master_capable", None, ht.TMaybeBool,
1218 "Denote whether node can become master or master candidate"),
1219 ("vm_capable", None, ht.TMaybeBool,
1220 "Denote whether node can host instances"),
1221 ("secondary_ip", None, ht.TMaybeString,
1222 "Change node's secondary IP address"),
1223 ("ndparams", None, ht.TMaybeDict, "Set node parameters"),
1224 ("powered", None, ht.TMaybeBool,
1225 "Whether the node should be marked as powered"),
1227 OP_RESULT = _TSetParamsResult
1230 class OpNodePowercycle(OpCode):
1231 """Tries to powercycle a node."""
1232 OP_DSC_FIELD = "node_name"
1238 OP_RESULT = ht.TMaybeString
1241 class OpNodeMigrate(OpCode):
1242 """Migrate all instances from a node."""
1243 OP_DSC_FIELD = "node_name"
1249 _PMigrationTargetNode,
1250 _PMigrationTargetNodeUuid,
1253 _PIAllocFromDesc("Iallocator for deciding the target node"
1254 " for shared-storage instances"),
1256 OP_RESULT = TJobIdListOnly
1259 class OpNodeEvacuate(OpCode):
1260 """Evacuate instances off a number of nodes."""
1261 OP_DSC_FIELD = "node_name"
1266 ("remote_node", None, ht.TMaybeString, "New secondary node"),
1267 ("remote_node_uuid", None, ht.TMaybeString, "New secondary node UUID"),
1268 _PIAllocFromDesc("Iallocator for computing solution"),
1269 ("mode", ht.NoDefault, ht.TElemOf(constants.NODE_EVAC_MODES),
1270 "Node evacuation mode"),
1272 OP_RESULT = TJobIdListOnly
1277 class OpInstanceCreate(OpCode):
1278 """Create an instance.
1280 @ivar instance_name: Instance name
1281 @ivar mode: Instance creation mode (one of L{constants.INSTANCE_CREATE_MODES})
1282 @ivar source_handshake: Signed handshake from source (remote import only)
1283 @ivar source_x509_ca: Source X509 CA in PEM format (remote import only)
1284 @ivar source_instance_name: Previous name of instance (remote import only)
1285 @ivar source_shutdown_timeout: Shutdown timeout used for source instance
1286 (remote import only)
1289 OP_DSC_FIELD = "instance_name"
1296 _POpportunisticLocking,
1297 ("beparams", ht.EmptyDict, ht.TDict, "Backend parameters for instance"),
1298 ("disks", ht.NoDefault, ht.TListOf(_TDiskParams),
1299 "Disk descriptions, for example ``[{\"%s\": 100}, {\"%s\": 5}]``;"
1300 " each disk definition must contain a ``%s`` value and"
1301 " can contain an optional ``%s`` value denoting the disk access mode"
1303 (constants.IDISK_SIZE, constants.IDISK_SIZE, constants.IDISK_SIZE,
1304 constants.IDISK_MODE,
1305 " or ".join("``%s``" % i for i in sorted(constants.DISK_ACCESS_SET)))),
1306 ("disk_template", ht.NoDefault, _BuildDiskTemplateCheck(True),
1308 ("file_driver", None, ht.TMaybe(ht.TElemOf(constants.FILE_DRIVER)),
1309 "Driver for file-backed disks"),
1310 ("file_storage_dir", None, ht.TMaybeString,
1311 "Directory for storing file-backed disks"),
1312 ("hvparams", ht.EmptyDict, ht.TDict,
1313 "Hypervisor parameters for instance, hypervisor-dependent"),
1314 ("hypervisor", None, ht.TMaybeString, "Hypervisor"),
1315 _PIAllocFromDesc("Iallocator for deciding which node(s) to use"),
1316 ("identify_defaults", False, ht.TBool,
1317 "Reset instance parameters to default if equal"),
1318 ("ip_check", True, ht.TBool, _PIpCheckDoc),
1319 ("conflicts_check", True, ht.TBool, "Check for conflicting IPs"),
1320 ("mode", ht.NoDefault, ht.TElemOf(constants.INSTANCE_CREATE_MODES),
1321 "Instance creation mode"),
1322 ("nics", ht.NoDefault, ht.TListOf(_TestNicDef),
1323 "List of NIC (network interface) definitions, for example"
1324 " ``[{}, {}, {\"%s\": \"198.51.100.4\"}]``; each NIC definition can"
1325 " contain the optional values %s" %
1327 ", ".join("``%s``" % i for i in sorted(constants.INIC_PARAMS)))),
1328 ("no_install", None, ht.TMaybeBool,
1329 "Do not install the OS (will disable automatic start)"),
1330 ("osparams", ht.EmptyDict, ht.TDict, "OS parameters for instance"),
1331 ("os_type", None, ht.TMaybeString, "Operating system"),
1332 ("pnode", None, ht.TMaybeString, "Primary node"),
1333 ("pnode_uuid", None, ht.TMaybeString, "Primary node UUID"),
1334 ("snode", None, ht.TMaybeString, "Secondary node"),
1335 ("snode_uuid", None, ht.TMaybeString, "Secondary node UUID"),
1336 ("source_handshake", None, ht.TMaybe(ht.TList),
1337 "Signed handshake from source (remote import only)"),
1338 ("source_instance_name", None, ht.TMaybeString,
1339 "Source instance name (remote import only)"),
1340 ("source_shutdown_timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT,
1342 "How long source instance was given to shut down (remote import only)"),
1343 ("source_x509_ca", None, ht.TMaybeString,
1344 "Source X509 CA in PEM format (remote import only)"),
1345 ("src_node", None, ht.TMaybeString, "Source node for import"),
1346 ("src_node_uuid", None, ht.TMaybeString, "Source node UUID for import"),
1347 ("src_path", None, ht.TMaybeString, "Source directory for import"),
1348 ("start", True, ht.TBool, "Whether to start instance after creation"),
1349 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "Instance tags"),
1351 OP_RESULT = ht.Comment("instance nodes")(ht.TListOf(ht.TNonEmptyString))
1354 class OpInstanceMultiAlloc(OpCode):
1355 """Allocates multiple instances.
1359 _POpportunisticLocking,
1360 _PIAllocFromDesc("Iallocator used to allocate all the instances"),
1361 ("instances", ht.EmptyList, ht.TListOf(ht.TInstanceOf(OpInstanceCreate)),
1362 "List of instance create opcodes describing the instances to allocate"),
1364 _JOB_LIST = ht.Comment("List of submitted jobs")(TJobIdList)
1365 ALLOCATABLE_KEY = "allocatable"
1366 FAILED_KEY = "allocatable"
1367 OP_RESULT = ht.TStrictDict(True, True, {
1368 constants.JOB_IDS_KEY: _JOB_LIST,
1369 ALLOCATABLE_KEY: ht.TListOf(ht.TNonEmptyString),
1370 FAILED_KEY: ht.TListOf(ht.TNonEmptyString),
1373 def __getstate__(self):
1374 """Generic serializer.
1377 state = OpCode.__getstate__(self)
1378 if hasattr(self, "instances"):
1379 # pylint: disable=E1101
1380 state["instances"] = [inst.__getstate__() for inst in self.instances]
1383 def __setstate__(self, state):
1384 """Generic unserializer.
1386 This method just restores from the serialized state the attributes
1387 of the current instance.
1389 @param state: the serialized opcode data
1390 @type state: C{dict}
1393 if not isinstance(state, dict):
1394 raise ValueError("Invalid data to __setstate__: expected dict, got %s" %
1397 if "instances" in state:
1398 state["instances"] = map(OpCode.LoadOpCode, state["instances"])
1400 return OpCode.__setstate__(self, state)
1402 def Validate(self, set_defaults):
1403 """Validates this opcode.
1405 We do this recursively.
1408 OpCode.Validate(self, set_defaults)
1410 for inst in self.instances: # pylint: disable=E1101
1411 inst.Validate(set_defaults)
1414 class OpInstanceReinstall(OpCode):
1415 """Reinstall an instance's OS."""
1416 OP_DSC_FIELD = "instance_name"
1421 ("os_type", None, ht.TMaybeString, "Instance operating system"),
1422 ("osparams", None, ht.TMaybeDict, "Temporary OS parameters"),
1424 OP_RESULT = ht.TNone
1427 class OpInstanceRemove(OpCode):
1428 """Remove an instance."""
1429 OP_DSC_FIELD = "instance_name"
1434 ("ignore_failures", False, ht.TBool,
1435 "Whether to ignore failures during removal"),
1437 OP_RESULT = ht.TNone
1440 class OpInstanceRename(OpCode):
1441 """Rename an instance."""
1446 ("new_name", ht.NoDefault, ht.TNonEmptyString, "New instance name"),
1447 ("ip_check", False, ht.TBool, _PIpCheckDoc),
1449 OP_RESULT = ht.Comment("New instance name")(ht.TNonEmptyString)
1452 class OpInstanceStartup(OpCode):
1453 """Startup an instance."""
1454 OP_DSC_FIELD = "instance_name"
1459 _PIgnoreOfflineNodes,
1460 ("hvparams", ht.EmptyDict, ht.TDict,
1461 "Temporary hypervisor parameters, hypervisor-dependent"),
1462 ("beparams", ht.EmptyDict, ht.TDict, "Temporary backend parameters"),
1466 OP_RESULT = ht.TNone
1469 class OpInstanceShutdown(OpCode):
1470 """Shutdown an instance."""
1471 OP_DSC_FIELD = "instance_name"
1476 _PIgnoreOfflineNodes,
1477 ("timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT, ht.TNonNegativeInt,
1478 "How long to wait for instance to shut down"),
1481 OP_RESULT = ht.TNone
1484 class OpInstanceReboot(OpCode):
1485 """Reboot an instance."""
1486 OP_DSC_FIELD = "instance_name"
1491 ("ignore_secondaries", False, ht.TBool,
1492 "Whether to start the instance even if secondary disks are failing"),
1493 ("reboot_type", ht.NoDefault, ht.TElemOf(constants.REBOOT_TYPES),
1494 "How to reboot instance"),
1496 OP_RESULT = ht.TNone
1499 class OpInstanceReplaceDisks(OpCode):
1500 """Replace the disks of an instance."""
1501 OP_DSC_FIELD = "instance_name"
1507 ("mode", ht.NoDefault, ht.TElemOf(constants.REPLACE_MODES),
1508 "Replacement mode"),
1509 ("disks", ht.EmptyList, ht.TListOf(ht.TNonNegativeInt),
1511 ("remote_node", None, ht.TMaybeString, "New secondary node"),
1512 ("remote_node_uuid", None, ht.TMaybeString, "New secondary node UUID"),
1513 _PIAllocFromDesc("Iallocator for deciding new secondary node"),
1515 OP_RESULT = ht.TNone
1518 class OpInstanceFailover(OpCode):
1519 """Failover an instance."""
1520 OP_DSC_FIELD = "instance_name"
1525 _PIgnoreConsistency,
1526 _PMigrationTargetNode,
1527 _PMigrationTargetNodeUuid,
1529 _PIAllocFromDesc("Iallocator for deciding the target node for"
1530 " shared-storage instances"),
1532 OP_RESULT = ht.TNone
1535 class OpInstanceMigrate(OpCode):
1536 """Migrate an instance.
1538 This migrates (without shutting down an instance) to its secondary
1541 @ivar instance_name: the name of the instance
1542 @ivar mode: the migration mode (live, non-live or None for auto)
1545 OP_DSC_FIELD = "instance_name"
1551 _PMigrationTargetNode,
1552 _PMigrationTargetNodeUuid,
1555 ("cleanup", False, ht.TBool,
1556 "Whether a previously failed migration should be cleaned up"),
1557 _PIAllocFromDesc("Iallocator for deciding the target node for"
1558 " shared-storage instances"),
1559 ("allow_failover", False, ht.TBool,
1560 "Whether we can fallback to failover if migration is not possible"),
1562 OP_RESULT = ht.TNone
1565 class OpInstanceMove(OpCode):
1566 """Move an instance.
1568 This move (with shutting down an instance and data copying) to an
1571 @ivar instance_name: the name of the instance
1572 @ivar target_node: the destination node
1575 OP_DSC_FIELD = "instance_name"
1581 ("target_node", ht.NoDefault, ht.TNonEmptyString, "Target node"),
1582 ("target_node_uuid", None, ht.TMaybeString, "Target node UUID"),
1583 _PIgnoreConsistency,
1585 OP_RESULT = ht.TNone
1588 class OpInstanceConsole(OpCode):
1589 """Connect to an instance's console."""
1590 OP_DSC_FIELD = "instance_name"
1595 OP_RESULT = ht.TDict
1598 class OpInstanceActivateDisks(OpCode):
1599 """Activate an instance's disks."""
1600 OP_DSC_FIELD = "instance_name"
1604 ("ignore_size", False, ht.TBool, "Whether to ignore recorded size"),
1607 OP_RESULT = ht.TListOf(ht.TAnd(ht.TIsLength(3),
1608 ht.TItems([ht.TNonEmptyString,
1610 ht.TNonEmptyString])))
1613 class OpInstanceDeactivateDisks(OpCode):
1614 """Deactivate an instance's disks."""
1615 OP_DSC_FIELD = "instance_name"
1621 OP_RESULT = ht.TNone
1624 class OpInstanceRecreateDisks(OpCode):
1625 """Recreate an instance's disks."""
1627 ht.TAnd(ht.TIsLength(2),
1628 ht.TItems([ht.Comment("Disk index")(ht.TNonNegativeInt),
1629 ht.Comment("Parameters")(_TDiskParams)]))
1631 OP_DSC_FIELD = "instance_name"
1635 ("disks", ht.EmptyList,
1636 ht.TOr(ht.TListOf(ht.TNonNegativeInt), ht.TListOf(_TDiskChanges)),
1637 "List of disk indexes (deprecated) or a list of tuples containing a disk"
1638 " index and a possibly empty dictionary with disk parameter changes"),
1639 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1640 "New instance nodes, if relocation is desired"),
1641 ("node_uuids", None, ht.TMaybeListOf(ht.TNonEmptyString),
1642 "New instance node UUIDs, if relocation is desired"),
1643 _PIAllocFromDesc("Iallocator for deciding new nodes"),
1645 OP_RESULT = ht.TNone
1648 class OpInstanceQuery(OpCode):
1649 """Compute the list of instances."""
1653 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1654 "Empty list to query all instances, instance names otherwise"),
1656 OP_RESULT = _TOldQueryResult
1659 class OpInstanceQueryData(OpCode):
1660 """Compute the run-time status of instances."""
1663 ("instances", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1665 ("static", False, ht.TBool,
1666 "Whether to only return configuration data without querying"
1669 OP_RESULT = ht.TDictOf(ht.TNonEmptyString, ht.TDict)
1672 def _TestInstSetParamsModList(fn):
1673 """Generates a check for modification lists.
1677 # TODO: Remove in version 2.8 including support in LUInstanceSetParams
1679 ht.TAnd(ht.TIsLength(2), ht.TItems([
1680 ht.TOr(ht.TElemOf(constants.DDMS_VALUES), ht.TNonNegativeInt),
1684 # New format, supporting adding/removing disks/NICs at arbitrary indices
1686 ht.TAnd(ht.TIsLength(3), ht.TItems([
1687 ht.TElemOf(constants.DDMS_VALUES_WITH_MODIFY),
1688 ht.Comment("Device index, can be negative, e.g. -1 for last disk")
1689 (ht.TOr(ht.TInt, ht.TString)),
1693 return ht.TOr(ht.Comment("Recommended")(ht.TListOf(mod_item_fn)),
1694 ht.Comment("Deprecated")(ht.TListOf(old_mod_item_fn)))
1697 class OpInstanceSetParams(OpCode):
1698 """Change the parameters of an instance.
1701 TestNicModifications = _TestInstSetParamsModList(_TestNicDef)
1702 TestDiskModifications = _TestInstSetParamsModList(_TDiskParams)
1704 OP_DSC_FIELD = "instance_name"
1711 ("nics", ht.EmptyList, TestNicModifications,
1712 "List of NIC changes: each item is of the form"
1713 " ``(op, identifier, settings)``, ``op`` is one of ``%s``, ``%s`` or"
1714 " ``%s``, ``identifier`` can be a zero-based index number (or -1 to refer"
1715 " to the last position), the NIC's UUID of the NIC's name; a"
1716 " deprecated version of this parameter used the form ``(op, settings)``,"
1717 " where ``op`` can be ``%s`` to add a new NIC with the specified"
1718 " settings, ``%s`` to remove the last NIC or a number to modify the"
1719 " settings of the NIC with that index" %
1720 (constants.DDM_ADD, constants.DDM_MODIFY, constants.DDM_REMOVE,
1721 constants.DDM_ADD, constants.DDM_REMOVE)),
1722 ("disks", ht.EmptyList, TestDiskModifications,
1723 "List of disk changes; see ``nics``"),
1724 ("beparams", ht.EmptyDict, ht.TDict, "Per-instance backend parameters"),
1725 ("runtime_mem", None, ht.TMaybePositiveInt, "New runtime memory"),
1726 ("hvparams", ht.EmptyDict, ht.TDict,
1727 "Per-instance hypervisor parameters, hypervisor-dependent"),
1728 ("disk_template", None, ht.TMaybe(_BuildDiskTemplateCheck(False)),
1729 "Disk template for instance"),
1730 ("pnode", None, ht.TMaybeString, "New primary node"),
1731 ("pnode_uuid", None, ht.TMaybeString, "New primary node UUID"),
1732 ("remote_node", None, ht.TMaybeString,
1733 "Secondary node (used when changing disk template)"),
1734 ("remote_node_uuid", None, ht.TMaybeString,
1735 "Secondary node UUID (used when changing disk template)"),
1736 ("os_name", None, ht.TMaybeString,
1737 "Change the instance's OS without reinstalling the instance"),
1738 ("osparams", None, ht.TMaybeDict, "Per-instance OS parameters"),
1739 ("wait_for_sync", True, ht.TBool,
1740 "Whether to wait for the disk to synchronize, when changing template"),
1741 ("offline", None, ht.TMaybeBool, "Whether to mark instance as offline"),
1742 ("conflicts_check", True, ht.TBool, "Check for conflicting IPs"),
1744 OP_RESULT = _TSetParamsResult
1747 class OpInstanceGrowDisk(OpCode):
1748 """Grow a disk of an instance."""
1749 OP_DSC_FIELD = "instance_name"
1754 ("disk", ht.NoDefault, ht.TInt, "Disk index"),
1755 ("amount", ht.NoDefault, ht.TNonNegativeInt,
1756 "Amount of disk space to add (megabytes)"),
1757 ("absolute", False, ht.TBool,
1758 "Whether the amount parameter is an absolute target or a relative one"),
1760 OP_RESULT = ht.TNone
1763 class OpInstanceChangeGroup(OpCode):
1764 """Moves an instance to another node group."""
1765 OP_DSC_FIELD = "instance_name"
1770 _PIAllocFromDesc("Iallocator for computing solution"),
1773 OP_RESULT = TJobIdListOnly
1776 # Node group opcodes
1778 class OpGroupAdd(OpCode):
1779 """Add a node group to the cluster."""
1780 OP_DSC_FIELD = "group_name"
1783 _PNodeGroupAllocPolicy,
1788 ("ipolicy", None, ht.TMaybeDict,
1789 "Group-wide :ref:`instance policy <rapi-ipolicy>` specs"),
1791 OP_RESULT = ht.TNone
1794 class OpGroupAssignNodes(OpCode):
1795 """Assign nodes to a node group."""
1796 OP_DSC_FIELD = "group_name"
1800 ("nodes", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
1801 "List of nodes to assign"),
1802 ("node_uuids", None, ht.TMaybeListOf(ht.TNonEmptyString),
1803 "List of node UUIDs to assign"),
1805 OP_RESULT = ht.TNone
1808 class OpGroupQuery(OpCode):
1809 """Compute the list of node groups."""
1812 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1813 "Empty list to query all groups, group names otherwise"),
1815 OP_RESULT = _TOldQueryResult
1818 class OpGroupSetParams(OpCode):
1819 """Change the parameters of a node group."""
1820 OP_DSC_FIELD = "group_name"
1823 _PNodeGroupAllocPolicy,
1828 ("ipolicy", None, ht.TMaybeDict, "Group-wide instance policy specs"),
1830 OP_RESULT = _TSetParamsResult
1833 class OpGroupRemove(OpCode):
1834 """Remove a node group from the cluster."""
1835 OP_DSC_FIELD = "group_name"
1839 OP_RESULT = ht.TNone
1842 class OpGroupRename(OpCode):
1843 """Rename a node group in the cluster."""
1846 ("new_name", ht.NoDefault, ht.TNonEmptyString, "New group name"),
1848 OP_RESULT = ht.Comment("New group name")(ht.TNonEmptyString)
1851 class OpGroupEvacuate(OpCode):
1852 """Evacuate a node group in the cluster."""
1853 OP_DSC_FIELD = "group_name"
1857 _PIAllocFromDesc("Iallocator for computing solution"),
1860 OP_RESULT = TJobIdListOnly
1864 class OpOsDiagnose(OpCode):
1865 """Compute the list of guest operating systems."""
1868 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1869 "Which operating systems to diagnose"),
1871 OP_RESULT = _TOldQueryResult
1874 # ExtStorage opcodes
1875 class OpExtStorageDiagnose(OpCode):
1876 """Compute the list of external storage providers."""
1879 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1880 "Which ExtStorage Provider to diagnose"),
1882 OP_RESULT = _TOldQueryResult
1886 class OpBackupQuery(OpCode):
1887 """Compute the list of exported images."""
1890 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1891 "Empty list to query all nodes, node names otherwise"),
1893 OP_RESULT = ht.TDictOf(ht.TNonEmptyString,
1894 ht.TOr(ht.Comment("False on error")(ht.TBool),
1895 ht.TListOf(ht.TNonEmptyString)))
1898 class OpBackupPrepare(OpCode):
1899 """Prepares an instance export.
1901 @ivar instance_name: Instance name
1902 @ivar mode: Export mode (one of L{constants.EXPORT_MODES})
1905 OP_DSC_FIELD = "instance_name"
1909 ("mode", ht.NoDefault, ht.TElemOf(constants.EXPORT_MODES),
1912 OP_RESULT = ht.TMaybeDict
1915 class OpBackupExport(OpCode):
1916 """Export an instance.
1918 For local exports, the export destination is the node name. For
1919 remote exports, the export destination is a list of tuples, each
1920 consisting of hostname/IP address, port, magic, HMAC and HMAC
1921 salt. The HMAC is calculated using the cluster domain secret over
1922 the value "${index}:${hostname}:${port}". The destination X509 CA
1923 must be a signed certificate.
1925 @ivar mode: Export mode (one of L{constants.EXPORT_MODES})
1926 @ivar target_node: Export destination
1927 @ivar x509_key_name: X509 key to use (remote export only)
1928 @ivar destination_x509_ca: Destination X509 CA in PEM format (remote export
1932 OP_DSC_FIELD = "instance_name"
1937 # TODO: Rename target_node as it changes meaning for different export modes
1938 # (e.g. "destination")
1939 ("target_node", ht.NoDefault, ht.TOr(ht.TNonEmptyString, ht.TList),
1940 "Destination information, depends on export mode"),
1941 ("target_node_uuid", None, ht.TMaybeString,
1942 "Target node UUID (if local export)"),
1943 ("shutdown", True, ht.TBool, "Whether to shutdown instance before export"),
1944 ("remove_instance", False, ht.TBool,
1945 "Whether to remove instance after export"),
1946 ("ignore_remove_failures", False, ht.TBool,
1947 "Whether to ignore failures while removing instances"),
1948 ("mode", constants.EXPORT_MODE_LOCAL, ht.TElemOf(constants.EXPORT_MODES),
1950 ("x509_key_name", None, ht.TMaybe(ht.TList),
1951 "Name of X509 key (remote export only)"),
1952 ("destination_x509_ca", None, ht.TMaybeString,
1953 "Destination X509 CA (remote export only)"),
1956 ht.TAnd(ht.TIsLength(2), ht.TItems([
1957 ht.Comment("Finalizing status")(ht.TBool),
1958 ht.Comment("Status for every exported disk")(ht.TListOf(ht.TBool)),
1962 class OpBackupRemove(OpCode):
1963 """Remove an instance's export."""
1964 OP_DSC_FIELD = "instance_name"
1969 OP_RESULT = ht.TNone
1973 class OpTagsGet(OpCode):
1974 """Returns the tags of the given object."""
1975 OP_DSC_FIELD = "name"
1978 # Not using _PUseLocking as the default is different for historical reasons
1979 ("use_locking", True, ht.TBool, "Whether to use synchronization"),
1980 # Name is only meaningful for nodes and instances
1981 ("name", ht.NoDefault, ht.TMaybeString,
1982 "Name of object to retrieve tags from"),
1984 OP_RESULT = ht.TListOf(ht.TNonEmptyString)
1987 class OpTagsSearch(OpCode):
1988 """Searches the tags in the cluster for a given pattern."""
1989 OP_DSC_FIELD = "pattern"
1991 ("pattern", ht.NoDefault, ht.TNonEmptyString,
1992 "Search pattern (regular expression)"),
1994 OP_RESULT = ht.TListOf(ht.TAnd(ht.TIsLength(2), ht.TItems([
2000 class OpTagsSet(OpCode):
2001 """Add a list of tags on a given object."""
2005 # Name is only meaningful for groups, nodes and instances
2006 ("name", ht.NoDefault, ht.TMaybeString,
2007 "Name of object where tag(s) should be added"),
2009 OP_RESULT = ht.TNone
2012 class OpTagsDel(OpCode):
2013 """Remove a list of tags from a given object."""
2017 # Name is only meaningful for groups, nodes and instances
2018 ("name", ht.NoDefault, ht.TMaybeString,
2019 "Name of object where tag(s) should be deleted"),
2021 OP_RESULT = ht.TNone
2025 class OpTestDelay(OpCode):
2026 """Sleeps for a configured amount of time.
2028 This is used just for debugging and testing.
2031 - duration: the time to sleep, in seconds
2032 - on_master: if true, sleep on the master
2033 - on_nodes: list of nodes in which to sleep
2035 If the on_master parameter is true, it will execute a sleep on the
2036 master (before any node sleep).
2038 If the on_nodes list is not empty, it will sleep on those nodes
2039 (after the sleep on the master, if that is enabled).
2041 As an additional feature, the case of duration < 0 will be reported
2042 as an execution error, so this opcode can be used as a failure
2043 generator. The case of duration == 0 will not be treated specially.
2046 OP_DSC_FIELD = "duration"
2048 ("duration", ht.NoDefault, ht.TNumber, None),
2049 ("on_master", True, ht.TBool, None),
2050 ("on_nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None),
2051 ("on_node_uuids", None, ht.TMaybeListOf(ht.TNonEmptyString), None),
2052 ("repeat", 0, ht.TNonNegativeInt, None),
2055 def OP_DSC_FORMATTER(self, value): # pylint: disable=C0103,R0201
2056 """Custom formatter for duration.
2066 class OpTestAllocator(OpCode):
2067 """Allocator framework testing.
2069 This opcode has two modes:
2070 - gather and return allocator input for a given mode (allocate new
2071 or replace secondary) and a given instance definition (direction
2073 - run a selected allocator for a given operation (as above) and
2074 return the allocator output (direction 'out')
2077 OP_DSC_FIELD = "iallocator"
2079 ("direction", ht.NoDefault,
2080 ht.TElemOf(constants.VALID_IALLOCATOR_DIRECTIONS), None),
2081 ("mode", ht.NoDefault, ht.TElemOf(constants.VALID_IALLOCATOR_MODES), None),
2082 ("name", ht.NoDefault, ht.TNonEmptyString, None),
2083 ("nics", ht.NoDefault,
2084 ht.TMaybeListOf(ht.TDictOf(ht.TElemOf([constants.INIC_MAC,
2089 ("disks", ht.NoDefault, ht.TMaybe(ht.TList), None),
2090 ("hypervisor", None, ht.TMaybeString, None),
2091 _PIAllocFromDesc(None),
2092 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None),
2093 ("memory", None, ht.TMaybe(ht.TNonNegativeInt), None),
2094 ("vcpus", None, ht.TMaybe(ht.TNonNegativeInt), None),
2095 ("os", None, ht.TMaybeString, None),
2096 ("disk_template", None, ht.TMaybeString, None),
2097 ("instances", None, ht.TMaybeListOf(ht.TNonEmptyString), None),
2099 ht.TMaybe(ht.TElemOf(constants.IALLOCATOR_NEVAC_MODES)), None),
2100 ("target_groups", None, ht.TMaybeListOf(ht.TNonEmptyString), None),
2101 ("spindle_use", 1, ht.TNonNegativeInt, None),
2102 ("count", 1, ht.TNonNegativeInt, None),
2106 class OpTestJqueue(OpCode):
2107 """Utility opcode to test some aspects of the job queue.
2111 ("notify_waitlock", False, ht.TBool, None),
2112 ("notify_exec", False, ht.TBool, None),
2113 ("log_messages", ht.EmptyList, ht.TListOf(ht.TString), None),
2114 ("fail", False, ht.TBool, None),
2118 class OpTestDummy(OpCode):
2119 """Utility opcode used by unittests.
2123 ("result", ht.NoDefault, ht.NoType, None),
2124 ("messages", ht.NoDefault, ht.NoType, None),
2125 ("fail", ht.NoDefault, ht.NoType, None),
2126 ("submit_jobs", None, ht.NoType, None),
2132 # Add a new network in the cluster
2133 class OpNetworkAdd(OpCode):
2134 """Add an IP network to the cluster."""
2135 OP_DSC_FIELD = "network_name"
2138 ("network", ht.NoDefault, _TIpNetwork4, "IPv4 subnet"),
2139 ("gateway", None, ht.TMaybe(_TIpAddress4), "IPv4 gateway"),
2140 ("network6", None, ht.TMaybe(_TIpNetwork6), "IPv6 subnet"),
2141 ("gateway6", None, ht.TMaybe(_TIpAddress6), "IPv6 gateway"),
2142 ("mac_prefix", None, ht.TMaybeString,
2143 "MAC address prefix that overrides cluster one"),
2144 ("add_reserved_ips", None, _TMaybeAddr4List,
2145 "Which IP addresses to reserve"),
2146 ("conflicts_check", True, ht.TBool,
2147 "Whether to check for conflicting IP addresses"),
2148 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "Network tags"),
2150 OP_RESULT = ht.TNone
2153 class OpNetworkRemove(OpCode):
2154 """Remove an existing network from the cluster.
2155 Must not be connected to any nodegroup.
2158 OP_DSC_FIELD = "network_name"
2163 OP_RESULT = ht.TNone
2166 class OpNetworkSetParams(OpCode):
2167 """Modify Network's parameters except for IPv4 subnet"""
2168 OP_DSC_FIELD = "network_name"
2171 ("gateway", None, ht.TMaybeValueNone(_TIpAddress4), "IPv4 gateway"),
2172 ("network6", None, ht.TMaybeValueNone(_TIpNetwork6), "IPv6 subnet"),
2173 ("gateway6", None, ht.TMaybeValueNone(_TIpAddress6), "IPv6 gateway"),
2174 ("mac_prefix", None, ht.TMaybeValueNone(ht.TString),
2175 "MAC address prefix that overrides cluster one"),
2176 ("add_reserved_ips", None, _TMaybeAddr4List,
2177 "Which external IP addresses to reserve"),
2178 ("remove_reserved_ips", None, _TMaybeAddr4List,
2179 "Which external IP addresses to release"),
2181 OP_RESULT = ht.TNone
2184 class OpNetworkConnect(OpCode):
2185 """Connect a Network to a specific Nodegroup with the defined netparams
2186 (mode, link). Nics in this Network will inherit those params.
2187 Produce errors if a NIC (that its not already assigned to a network)
2188 has an IP that is contained in the Network this will produce error unless
2189 --no-conflicts-check is passed.
2192 OP_DSC_FIELD = "network_name"
2196 ("network_mode", ht.NoDefault, ht.TElemOf(constants.NIC_VALID_MODES),
2197 "Connectivity mode"),
2198 ("network_link", ht.NoDefault, ht.TString, "Connectivity link"),
2199 ("conflicts_check", True, ht.TBool, "Whether to check for conflicting IPs"),
2201 OP_RESULT = ht.TNone
2204 class OpNetworkDisconnect(OpCode):
2205 """Disconnect a Network from a Nodegroup. Produce errors if NICs are
2206 present in the Network unless --no-conficts-check option is passed.
2209 OP_DSC_FIELD = "network_name"
2214 OP_RESULT = ht.TNone
2217 class OpNetworkQuery(OpCode):
2218 """Compute the list of networks."""
2222 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
2223 "Empty list to query all groups, group names otherwise"),
2225 OP_RESULT = _TOldQueryResult
2229 """Returns list of all defined opcodes.
2231 Does not eliminate duplicates by C{OP_ID}.
2234 return [v for v in globals().values()
2235 if (isinstance(v, type) and issubclass(v, OpCode) and
2236 hasattr(v, "OP_ID") and v is not OpCode)]
2239 OP_MAPPING = dict((v.OP_ID, v) for v in _GetOpList())