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"),
968 class OpClusterRedistConf(OpCode):
969 """Force a full push of the cluster configuration.
975 class OpClusterActivateMasterIp(OpCode):
976 """Activate the master IP on the master node.
982 class OpClusterDeactivateMasterIp(OpCode):
983 """Deactivate the master IP on the master node.
989 class OpQuery(OpCode):
990 """Query for resources/items.
992 @ivar what: Resources to query for, must be one of L{constants.QR_VIA_OP}
993 @ivar fields: List of fields to retrieve
994 @ivar qfilter: Query filter
997 OP_DSC_FIELD = "what"
1001 ("fields", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
1002 "Requested fields"),
1003 ("qfilter", None, ht.TMaybe(ht.TList),
1007 _GenerateObjectTypeCheck(objects.QueryResponse, {
1008 "fields": ht.TListOf(_TQueryFieldDef),
1009 "data": _TQueryResult,
1013 class OpQueryFields(OpCode):
1014 """Query for available resource/item fields.
1016 @ivar what: Resources to query for, must be one of L{constants.QR_VIA_OP}
1017 @ivar fields: List of fields to retrieve
1020 OP_DSC_FIELD = "what"
1023 ("fields", None, ht.TMaybeListOf(ht.TNonEmptyString),
1024 "Requested fields; if not given, all are returned"),
1027 _GenerateObjectTypeCheck(objects.QueryFieldsResponse, {
1028 "fields": ht.TListOf(_TQueryFieldDef),
1032 class OpOobCommand(OpCode):
1033 """Interact with OOB."""
1035 ("node_names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1036 "List of node names to run the OOB command against"),
1037 ("node_uuids", None, ht.TMaybeListOf(ht.TNonEmptyString),
1038 "List of node UUIDs to run the OOB command against"),
1039 ("command", ht.NoDefault, ht.TElemOf(constants.OOB_COMMANDS),
1040 "OOB command to be run"),
1041 ("timeout", constants.OOB_TIMEOUT, ht.TInt,
1042 "Timeout before the OOB helper will be terminated"),
1043 ("ignore_status", False, ht.TBool,
1044 "Ignores the node offline status for power off"),
1045 ("power_delay", constants.OOB_POWER_DELAY, ht.TNonNegativeFloat,
1046 "Time in seconds to wait between powering on nodes"),
1048 # Fixme: Make it more specific with all the special cases in LUOobCommand
1049 OP_RESULT = _TQueryResult
1052 class OpRestrictedCommand(OpCode):
1053 """Runs a restricted command on node(s).
1058 ("nodes", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
1059 "Nodes on which the command should be run (at least one)"),
1060 ("node_uuids", None, ht.TMaybeListOf(ht.TNonEmptyString),
1061 "Node UUIDs on which the command should be run (at least one)"),
1062 ("command", ht.NoDefault, ht.TNonEmptyString,
1063 "Command name (no parameters)"),
1067 ht.Comment("success")(ht.TBool),
1068 ht.Comment("output or error message")(ht.TString),
1072 ht.TListOf(ht.TAnd(ht.TIsLength(len(_RESULT_ITEMS)),
1073 ht.TItems(_RESULT_ITEMS)))
1078 class OpNodeRemove(OpCode):
1081 @type node_name: C{str}
1082 @ivar node_name: The name of the node to remove. If the node still has
1083 instances on it, the operation will fail.
1086 OP_DSC_FIELD = "node_name"
1091 OP_RESULT = ht.TNone
1094 class OpNodeAdd(OpCode):
1095 """Add a node to the cluster.
1097 @type node_name: C{str}
1098 @ivar node_name: The name of the node to add. This can be a short name,
1099 but it will be expanded to the FQDN.
1100 @type primary_ip: IP address
1101 @ivar primary_ip: The primary IP of the node. This will be ignored when the
1102 opcode is submitted, but will be filled during the node
1103 add (so it will be visible in the job query).
1104 @type secondary_ip: IP address
1105 @ivar secondary_ip: The secondary IP of the node. This needs to be passed
1106 if the cluster has been initialized in 'dual-network'
1107 mode, otherwise it must not be given.
1108 @type readd: C{bool}
1109 @ivar readd: Whether to re-add an existing node to the cluster. If
1110 this is not passed, then the operation will abort if the node
1111 name is already in the cluster; use this parameter to 'repair'
1112 a node that had its configuration broken, or was reinstalled
1113 without removal from the cluster.
1115 @ivar group: The node group to which this node will belong.
1116 @type vm_capable: C{bool}
1117 @ivar vm_capable: The vm_capable node attribute
1118 @type master_capable: C{bool}
1119 @ivar master_capable: The master_capable node attribute
1122 OP_DSC_FIELD = "node_name"
1127 ("primary_ip", None, ht.NoType, "Primary IP address"),
1128 ("secondary_ip", None, ht.TMaybeString, "Secondary IP address"),
1129 ("readd", False, ht.TBool, "Whether node is re-added to cluster"),
1130 ("group", None, ht.TMaybeString, "Initial node group"),
1131 ("master_capable", None, ht.TMaybeBool,
1132 "Whether node can become master or master candidate"),
1133 ("vm_capable", None, ht.TMaybeBool,
1134 "Whether node can host instances"),
1135 ("ndparams", None, ht.TMaybeDict, "Node parameters"),
1137 OP_RESULT = ht.TNone
1140 class OpNodeQuery(OpCode):
1141 """Compute the list of nodes."""
1145 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1146 "Empty list to query all nodes, node names otherwise"),
1148 OP_RESULT = _TOldQueryResult
1151 class OpNodeQueryvols(OpCode):
1152 """Get list of volumes on node."""
1155 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1156 "Empty list to query all nodes, node names otherwise"),
1158 OP_RESULT = ht.TListOf(ht.TAny)
1161 class OpNodeQueryStorage(OpCode):
1162 """Get information on storage for node(s)."""
1166 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "List of nodes"),
1167 ("name", None, ht.TMaybeString, "Storage name"),
1169 OP_RESULT = _TOldQueryResult
1172 class OpNodeModifyStorage(OpCode):
1173 """Modifies the properies of a storage unit"""
1174 OP_DSC_FIELD = "node_name"
1180 ("changes", ht.NoDefault, ht.TDict, "Requested changes"),
1182 OP_RESULT = ht.TNone
1185 class OpRepairNodeStorage(OpCode):
1186 """Repairs the volume group on a node."""
1187 OP_DSC_FIELD = "node_name"
1193 _PIgnoreConsistency,
1195 OP_RESULT = ht.TNone
1198 class OpNodeSetParams(OpCode):
1199 """Change the parameters of a node."""
1200 OP_DSC_FIELD = "node_name"
1207 ("master_candidate", None, ht.TMaybeBool,
1208 "Whether the node should become a master candidate"),
1209 ("offline", None, ht.TMaybeBool,
1210 "Whether the node should be marked as offline"),
1211 ("drained", None, ht.TMaybeBool,
1212 "Whether the node should be marked as drained"),
1213 ("auto_promote", False, ht.TBool,
1214 "Whether node(s) should be promoted to master candidate if necessary"),
1215 ("master_capable", None, ht.TMaybeBool,
1216 "Denote whether node can become master or master candidate"),
1217 ("vm_capable", None, ht.TMaybeBool,
1218 "Denote whether node can host instances"),
1219 ("secondary_ip", None, ht.TMaybeString,
1220 "Change node's secondary IP address"),
1221 ("ndparams", None, ht.TMaybeDict, "Set node parameters"),
1222 ("powered", None, ht.TMaybeBool,
1223 "Whether the node should be marked as powered"),
1225 OP_RESULT = _TSetParamsResult
1228 class OpNodePowercycle(OpCode):
1229 """Tries to powercycle a node."""
1230 OP_DSC_FIELD = "node_name"
1236 OP_RESULT = ht.TMaybeString
1239 class OpNodeMigrate(OpCode):
1240 """Migrate all instances from a node."""
1241 OP_DSC_FIELD = "node_name"
1247 _PMigrationTargetNode,
1248 _PMigrationTargetNodeUuid,
1251 _PIAllocFromDesc("Iallocator for deciding the target node"
1252 " for shared-storage instances"),
1254 OP_RESULT = TJobIdListOnly
1257 class OpNodeEvacuate(OpCode):
1258 """Evacuate instances off a number of nodes."""
1259 OP_DSC_FIELD = "node_name"
1264 ("remote_node", None, ht.TMaybeString, "New secondary node"),
1265 ("remote_node_uuid", None, ht.TMaybeString, "New secondary node UUID"),
1266 _PIAllocFromDesc("Iallocator for computing solution"),
1267 ("mode", ht.NoDefault, ht.TElemOf(constants.NODE_EVAC_MODES),
1268 "Node evacuation mode"),
1270 OP_RESULT = TJobIdListOnly
1275 class OpInstanceCreate(OpCode):
1276 """Create an instance.
1278 @ivar instance_name: Instance name
1279 @ivar mode: Instance creation mode (one of L{constants.INSTANCE_CREATE_MODES})
1280 @ivar source_handshake: Signed handshake from source (remote import only)
1281 @ivar source_x509_ca: Source X509 CA in PEM format (remote import only)
1282 @ivar source_instance_name: Previous name of instance (remote import only)
1283 @ivar source_shutdown_timeout: Shutdown timeout used for source instance
1284 (remote import only)
1287 OP_DSC_FIELD = "instance_name"
1294 _POpportunisticLocking,
1295 ("beparams", ht.EmptyDict, ht.TDict, "Backend parameters for instance"),
1296 ("disks", ht.NoDefault, ht.TListOf(_TDiskParams),
1297 "Disk descriptions, for example ``[{\"%s\": 100}, {\"%s\": 5}]``;"
1298 " each disk definition must contain a ``%s`` value and"
1299 " can contain an optional ``%s`` value denoting the disk access mode"
1301 (constants.IDISK_SIZE, constants.IDISK_SIZE, constants.IDISK_SIZE,
1302 constants.IDISK_MODE,
1303 " or ".join("``%s``" % i for i in sorted(constants.DISK_ACCESS_SET)))),
1304 ("disk_template", ht.NoDefault, _BuildDiskTemplateCheck(True),
1306 ("file_driver", None, ht.TMaybe(ht.TElemOf(constants.FILE_DRIVER)),
1307 "Driver for file-backed disks"),
1308 ("file_storage_dir", None, ht.TMaybeString,
1309 "Directory for storing file-backed disks"),
1310 ("hvparams", ht.EmptyDict, ht.TDict,
1311 "Hypervisor parameters for instance, hypervisor-dependent"),
1312 ("hypervisor", None, ht.TMaybeString, "Hypervisor"),
1313 _PIAllocFromDesc("Iallocator for deciding which node(s) to use"),
1314 ("identify_defaults", False, ht.TBool,
1315 "Reset instance parameters to default if equal"),
1316 ("ip_check", True, ht.TBool, _PIpCheckDoc),
1317 ("conflicts_check", True, ht.TBool, "Check for conflicting IPs"),
1318 ("mode", ht.NoDefault, ht.TElemOf(constants.INSTANCE_CREATE_MODES),
1319 "Instance creation mode"),
1320 ("nics", ht.NoDefault, ht.TListOf(_TestNicDef),
1321 "List of NIC (network interface) definitions, for example"
1322 " ``[{}, {}, {\"%s\": \"198.51.100.4\"}]``; each NIC definition can"
1323 " contain the optional values %s" %
1325 ", ".join("``%s``" % i for i in sorted(constants.INIC_PARAMS)))),
1326 ("no_install", None, ht.TMaybeBool,
1327 "Do not install the OS (will disable automatic start)"),
1328 ("osparams", ht.EmptyDict, ht.TDict, "OS parameters for instance"),
1329 ("os_type", None, ht.TMaybeString, "Operating system"),
1330 ("pnode", None, ht.TMaybeString, "Primary node"),
1331 ("pnode_uuid", None, ht.TMaybeString, "Primary node UUID"),
1332 ("snode", None, ht.TMaybeString, "Secondary node"),
1333 ("snode_uuid", None, ht.TMaybeString, "Secondary node UUID"),
1334 ("source_handshake", None, ht.TMaybe(ht.TList),
1335 "Signed handshake from source (remote import only)"),
1336 ("source_instance_name", None, ht.TMaybeString,
1337 "Source instance name (remote import only)"),
1338 ("source_shutdown_timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT,
1340 "How long source instance was given to shut down (remote import only)"),
1341 ("source_x509_ca", None, ht.TMaybeString,
1342 "Source X509 CA in PEM format (remote import only)"),
1343 ("src_node", None, ht.TMaybeString, "Source node for import"),
1344 ("src_node_uuid", None, ht.TMaybeString, "Source node UUID for import"),
1345 ("src_path", None, ht.TMaybeString, "Source directory for import"),
1346 ("start", True, ht.TBool, "Whether to start instance after creation"),
1347 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "Instance tags"),
1349 OP_RESULT = ht.Comment("instance nodes")(ht.TListOf(ht.TNonEmptyString))
1352 class OpInstanceMultiAlloc(OpCode):
1353 """Allocates multiple instances.
1357 _POpportunisticLocking,
1358 _PIAllocFromDesc("Iallocator used to allocate all the instances"),
1359 ("instances", ht.EmptyList, ht.TListOf(ht.TInstanceOf(OpInstanceCreate)),
1360 "List of instance create opcodes describing the instances to allocate"),
1362 _JOB_LIST = ht.Comment("List of submitted jobs")(TJobIdList)
1363 ALLOCATABLE_KEY = "allocatable"
1364 FAILED_KEY = "allocatable"
1365 OP_RESULT = ht.TStrictDict(True, True, {
1366 constants.JOB_IDS_KEY: _JOB_LIST,
1367 ALLOCATABLE_KEY: ht.TListOf(ht.TNonEmptyString),
1368 FAILED_KEY: ht.TListOf(ht.TNonEmptyString),
1371 def __getstate__(self):
1372 """Generic serializer.
1375 state = OpCode.__getstate__(self)
1376 if hasattr(self, "instances"):
1377 # pylint: disable=E1101
1378 state["instances"] = [inst.__getstate__() for inst in self.instances]
1381 def __setstate__(self, state):
1382 """Generic unserializer.
1384 This method just restores from the serialized state the attributes
1385 of the current instance.
1387 @param state: the serialized opcode data
1388 @type state: C{dict}
1391 if not isinstance(state, dict):
1392 raise ValueError("Invalid data to __setstate__: expected dict, got %s" %
1395 if "instances" in state:
1396 state["instances"] = map(OpCode.LoadOpCode, state["instances"])
1398 return OpCode.__setstate__(self, state)
1400 def Validate(self, set_defaults):
1401 """Validates this opcode.
1403 We do this recursively.
1406 OpCode.Validate(self, set_defaults)
1408 for inst in self.instances: # pylint: disable=E1101
1409 inst.Validate(set_defaults)
1412 class OpInstanceReinstall(OpCode):
1413 """Reinstall an instance's OS."""
1414 OP_DSC_FIELD = "instance_name"
1419 ("os_type", None, ht.TMaybeString, "Instance operating system"),
1420 ("osparams", None, ht.TMaybeDict, "Temporary OS parameters"),
1422 OP_RESULT = ht.TNone
1425 class OpInstanceRemove(OpCode):
1426 """Remove an instance."""
1427 OP_DSC_FIELD = "instance_name"
1432 ("ignore_failures", False, ht.TBool,
1433 "Whether to ignore failures during removal"),
1435 OP_RESULT = ht.TNone
1438 class OpInstanceRename(OpCode):
1439 """Rename an instance."""
1444 ("new_name", ht.NoDefault, ht.TNonEmptyString, "New instance name"),
1445 ("ip_check", False, ht.TBool, _PIpCheckDoc),
1447 OP_RESULT = ht.Comment("New instance name")(ht.TNonEmptyString)
1450 class OpInstanceStartup(OpCode):
1451 """Startup an instance."""
1452 OP_DSC_FIELD = "instance_name"
1457 _PIgnoreOfflineNodes,
1458 ("hvparams", ht.EmptyDict, ht.TDict,
1459 "Temporary hypervisor parameters, hypervisor-dependent"),
1460 ("beparams", ht.EmptyDict, ht.TDict, "Temporary backend parameters"),
1464 OP_RESULT = ht.TNone
1467 class OpInstanceShutdown(OpCode):
1468 """Shutdown an instance."""
1469 OP_DSC_FIELD = "instance_name"
1474 _PIgnoreOfflineNodes,
1475 ("timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT, ht.TNonNegativeInt,
1476 "How long to wait for instance to shut down"),
1479 OP_RESULT = ht.TNone
1482 class OpInstanceReboot(OpCode):
1483 """Reboot an instance."""
1484 OP_DSC_FIELD = "instance_name"
1489 ("ignore_secondaries", False, ht.TBool,
1490 "Whether to start the instance even if secondary disks are failing"),
1491 ("reboot_type", ht.NoDefault, ht.TElemOf(constants.REBOOT_TYPES),
1492 "How to reboot instance"),
1494 OP_RESULT = ht.TNone
1497 class OpInstanceReplaceDisks(OpCode):
1498 """Replace the disks of an instance."""
1499 OP_DSC_FIELD = "instance_name"
1505 ("mode", ht.NoDefault, ht.TElemOf(constants.REPLACE_MODES),
1506 "Replacement mode"),
1507 ("disks", ht.EmptyList, ht.TListOf(ht.TNonNegativeInt),
1509 ("remote_node", None, ht.TMaybeString, "New secondary node"),
1510 ("remote_node_uuid", None, ht.TMaybeString, "New secondary node UUID"),
1511 _PIAllocFromDesc("Iallocator for deciding new secondary node"),
1513 OP_RESULT = ht.TNone
1516 class OpInstanceFailover(OpCode):
1517 """Failover an instance."""
1518 OP_DSC_FIELD = "instance_name"
1523 _PIgnoreConsistency,
1524 _PMigrationTargetNode,
1525 _PMigrationTargetNodeUuid,
1527 _PIAllocFromDesc("Iallocator for deciding the target node for"
1528 " shared-storage instances"),
1530 OP_RESULT = ht.TNone
1533 class OpInstanceMigrate(OpCode):
1534 """Migrate an instance.
1536 This migrates (without shutting down an instance) to its secondary
1539 @ivar instance_name: the name of the instance
1540 @ivar mode: the migration mode (live, non-live or None for auto)
1543 OP_DSC_FIELD = "instance_name"
1549 _PMigrationTargetNode,
1550 _PMigrationTargetNodeUuid,
1553 ("cleanup", False, ht.TBool,
1554 "Whether a previously failed migration should be cleaned up"),
1555 _PIAllocFromDesc("Iallocator for deciding the target node for"
1556 " shared-storage instances"),
1557 ("allow_failover", False, ht.TBool,
1558 "Whether we can fallback to failover if migration is not possible"),
1560 OP_RESULT = ht.TNone
1563 class OpInstanceMove(OpCode):
1564 """Move an instance.
1566 This move (with shutting down an instance and data copying) to an
1569 @ivar instance_name: the name of the instance
1570 @ivar target_node: the destination node
1573 OP_DSC_FIELD = "instance_name"
1579 ("target_node", ht.NoDefault, ht.TNonEmptyString, "Target node"),
1580 ("target_node_uuid", None, ht.TMaybeString, "Target node UUID"),
1581 _PIgnoreConsistency,
1583 OP_RESULT = ht.TNone
1586 class OpInstanceConsole(OpCode):
1587 """Connect to an instance's console."""
1588 OP_DSC_FIELD = "instance_name"
1593 OP_RESULT = ht.TDict
1596 class OpInstanceActivateDisks(OpCode):
1597 """Activate an instance's disks."""
1598 OP_DSC_FIELD = "instance_name"
1602 ("ignore_size", False, ht.TBool, "Whether to ignore recorded size"),
1605 OP_RESULT = ht.TListOf(ht.TAnd(ht.TIsLength(3),
1606 ht.TItems([ht.TNonEmptyString,
1608 ht.TNonEmptyString])))
1611 class OpInstanceDeactivateDisks(OpCode):
1612 """Deactivate an instance's disks."""
1613 OP_DSC_FIELD = "instance_name"
1619 OP_RESULT = ht.TNone
1622 class OpInstanceRecreateDisks(OpCode):
1623 """Recreate an instance's disks."""
1625 ht.TAnd(ht.TIsLength(2),
1626 ht.TItems([ht.Comment("Disk index")(ht.TNonNegativeInt),
1627 ht.Comment("Parameters")(_TDiskParams)]))
1629 OP_DSC_FIELD = "instance_name"
1633 ("disks", ht.EmptyList,
1634 ht.TOr(ht.TListOf(ht.TNonNegativeInt), ht.TListOf(_TDiskChanges)),
1635 "List of disk indexes (deprecated) or a list of tuples containing a disk"
1636 " index and a possibly empty dictionary with disk parameter changes"),
1637 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1638 "New instance nodes, if relocation is desired"),
1639 ("node_uuids", None, ht.TMaybeListOf(ht.TNonEmptyString),
1640 "New instance node UUIDs, if relocation is desired"),
1641 _PIAllocFromDesc("Iallocator for deciding new nodes"),
1643 OP_RESULT = ht.TNone
1646 class OpInstanceQuery(OpCode):
1647 """Compute the list of instances."""
1651 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1652 "Empty list to query all instances, instance names otherwise"),
1654 OP_RESULT = _TOldQueryResult
1657 class OpInstanceQueryData(OpCode):
1658 """Compute the run-time status of instances."""
1661 ("instances", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1663 ("static", False, ht.TBool,
1664 "Whether to only return configuration data without querying"
1667 OP_RESULT = ht.TDictOf(ht.TNonEmptyString, ht.TDict)
1670 def _TestInstSetParamsModList(fn):
1671 """Generates a check for modification lists.
1675 # TODO: Remove in version 2.8 including support in LUInstanceSetParams
1677 ht.TAnd(ht.TIsLength(2), ht.TItems([
1678 ht.TOr(ht.TElemOf(constants.DDMS_VALUES), ht.TNonNegativeInt),
1682 # New format, supporting adding/removing disks/NICs at arbitrary indices
1684 ht.TAnd(ht.TIsLength(3), ht.TItems([
1685 ht.TElemOf(constants.DDMS_VALUES_WITH_MODIFY),
1686 ht.Comment("Device index, can be negative, e.g. -1 for last disk")
1687 (ht.TOr(ht.TInt, ht.TString)),
1691 return ht.TOr(ht.Comment("Recommended")(ht.TListOf(mod_item_fn)),
1692 ht.Comment("Deprecated")(ht.TListOf(old_mod_item_fn)))
1695 class OpInstanceSetParams(OpCode):
1696 """Change the parameters of an instance.
1699 TestNicModifications = _TestInstSetParamsModList(_TestNicDef)
1700 TestDiskModifications = _TestInstSetParamsModList(_TDiskParams)
1702 OP_DSC_FIELD = "instance_name"
1709 ("nics", ht.EmptyList, TestNicModifications,
1710 "List of NIC changes: each item is of the form"
1711 " ``(op, identifier, settings)``, ``op`` is one of ``%s``, ``%s`` or"
1712 " ``%s``, ``identifier`` can be a zero-based index number (or -1 to refer"
1713 " to the last position), the NIC's UUID of the NIC's name; a"
1714 " deprecated version of this parameter used the form ``(op, settings)``,"
1715 " where ``op`` can be ``%s`` to add a new NIC with the specified"
1716 " settings, ``%s`` to remove the last NIC or a number to modify the"
1717 " settings of the NIC with that index" %
1718 (constants.DDM_ADD, constants.DDM_MODIFY, constants.DDM_REMOVE,
1719 constants.DDM_ADD, constants.DDM_REMOVE)),
1720 ("disks", ht.EmptyList, TestDiskModifications,
1721 "List of disk changes; see ``nics``"),
1722 ("beparams", ht.EmptyDict, ht.TDict, "Per-instance backend parameters"),
1723 ("runtime_mem", None, ht.TMaybePositiveInt, "New runtime memory"),
1724 ("hvparams", ht.EmptyDict, ht.TDict,
1725 "Per-instance hypervisor parameters, hypervisor-dependent"),
1726 ("disk_template", None, ht.TMaybe(_BuildDiskTemplateCheck(False)),
1727 "Disk template for instance"),
1728 ("pnode", None, ht.TMaybeString, "New primary node"),
1729 ("pnode_uuid", None, ht.TMaybeString, "New primary node UUID"),
1730 ("remote_node", None, ht.TMaybeString,
1731 "Secondary node (used when changing disk template)"),
1732 ("remote_node_uuid", None, ht.TMaybeString,
1733 "Secondary node UUID (used when changing disk template)"),
1734 ("os_name", None, ht.TMaybeString,
1735 "Change the instance's OS without reinstalling the instance"),
1736 ("osparams", None, ht.TMaybeDict, "Per-instance OS parameters"),
1737 ("wait_for_sync", True, ht.TBool,
1738 "Whether to wait for the disk to synchronize, when changing template"),
1739 ("offline", None, ht.TMaybeBool, "Whether to mark instance as offline"),
1740 ("conflicts_check", True, ht.TBool, "Check for conflicting IPs"),
1742 OP_RESULT = _TSetParamsResult
1745 class OpInstanceGrowDisk(OpCode):
1746 """Grow a disk of an instance."""
1747 OP_DSC_FIELD = "instance_name"
1752 ("disk", ht.NoDefault, ht.TInt, "Disk index"),
1753 ("amount", ht.NoDefault, ht.TNonNegativeInt,
1754 "Amount of disk space to add (megabytes)"),
1755 ("absolute", False, ht.TBool,
1756 "Whether the amount parameter is an absolute target or a relative one"),
1758 OP_RESULT = ht.TNone
1761 class OpInstanceChangeGroup(OpCode):
1762 """Moves an instance to another node group."""
1763 OP_DSC_FIELD = "instance_name"
1768 _PIAllocFromDesc("Iallocator for computing solution"),
1771 OP_RESULT = TJobIdListOnly
1774 # Node group opcodes
1776 class OpGroupAdd(OpCode):
1777 """Add a node group to the cluster."""
1778 OP_DSC_FIELD = "group_name"
1781 _PNodeGroupAllocPolicy,
1786 ("ipolicy", None, ht.TMaybeDict,
1787 "Group-wide :ref:`instance policy <rapi-ipolicy>` specs"),
1789 OP_RESULT = ht.TNone
1792 class OpGroupAssignNodes(OpCode):
1793 """Assign nodes to a node group."""
1794 OP_DSC_FIELD = "group_name"
1798 ("nodes", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
1799 "List of nodes to assign"),
1800 ("node_uuids", None, ht.TMaybeListOf(ht.TNonEmptyString),
1801 "List of node UUIDs to assign"),
1803 OP_RESULT = ht.TNone
1806 class OpGroupQuery(OpCode):
1807 """Compute the list of node groups."""
1810 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1811 "Empty list to query all groups, group names otherwise"),
1813 OP_RESULT = _TOldQueryResult
1816 class OpGroupSetParams(OpCode):
1817 """Change the parameters of a node group."""
1818 OP_DSC_FIELD = "group_name"
1821 _PNodeGroupAllocPolicy,
1826 ("ipolicy", None, ht.TMaybeDict, "Group-wide instance policy specs"),
1828 OP_RESULT = _TSetParamsResult
1831 class OpGroupRemove(OpCode):
1832 """Remove a node group from the cluster."""
1833 OP_DSC_FIELD = "group_name"
1837 OP_RESULT = ht.TNone
1840 class OpGroupRename(OpCode):
1841 """Rename a node group in the cluster."""
1844 ("new_name", ht.NoDefault, ht.TNonEmptyString, "New group name"),
1846 OP_RESULT = ht.Comment("New group name")(ht.TNonEmptyString)
1849 class OpGroupEvacuate(OpCode):
1850 """Evacuate a node group in the cluster."""
1851 OP_DSC_FIELD = "group_name"
1855 _PIAllocFromDesc("Iallocator for computing solution"),
1858 OP_RESULT = TJobIdListOnly
1862 class OpOsDiagnose(OpCode):
1863 """Compute the list of guest operating systems."""
1866 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1867 "Which operating systems to diagnose"),
1869 OP_RESULT = _TOldQueryResult
1872 # ExtStorage opcodes
1873 class OpExtStorageDiagnose(OpCode):
1874 """Compute the list of external storage providers."""
1877 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1878 "Which ExtStorage Provider to diagnose"),
1880 OP_RESULT = _TOldQueryResult
1884 class OpBackupQuery(OpCode):
1885 """Compute the list of exported images."""
1888 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1889 "Empty list to query all nodes, node names otherwise"),
1891 OP_RESULT = ht.TDictOf(ht.TNonEmptyString,
1892 ht.TOr(ht.Comment("False on error")(ht.TBool),
1893 ht.TListOf(ht.TNonEmptyString)))
1896 class OpBackupPrepare(OpCode):
1897 """Prepares an instance export.
1899 @ivar instance_name: Instance name
1900 @ivar mode: Export mode (one of L{constants.EXPORT_MODES})
1903 OP_DSC_FIELD = "instance_name"
1907 ("mode", ht.NoDefault, ht.TElemOf(constants.EXPORT_MODES),
1910 OP_RESULT = ht.TMaybeDict
1913 class OpBackupExport(OpCode):
1914 """Export an instance.
1916 For local exports, the export destination is the node name. For
1917 remote exports, the export destination is a list of tuples, each
1918 consisting of hostname/IP address, port, magic, HMAC and HMAC
1919 salt. The HMAC is calculated using the cluster domain secret over
1920 the value "${index}:${hostname}:${port}". The destination X509 CA
1921 must be a signed certificate.
1923 @ivar mode: Export mode (one of L{constants.EXPORT_MODES})
1924 @ivar target_node: Export destination
1925 @ivar x509_key_name: X509 key to use (remote export only)
1926 @ivar destination_x509_ca: Destination X509 CA in PEM format (remote export
1930 OP_DSC_FIELD = "instance_name"
1935 # TODO: Rename target_node as it changes meaning for different export modes
1936 # (e.g. "destination")
1937 ("target_node", ht.NoDefault, ht.TOr(ht.TNonEmptyString, ht.TList),
1938 "Destination information, depends on export mode"),
1939 ("target_node_uuid", None, ht.TMaybeString,
1940 "Target node UUID (if local export)"),
1941 ("shutdown", True, ht.TBool, "Whether to shutdown instance before export"),
1942 ("remove_instance", False, ht.TBool,
1943 "Whether to remove instance after export"),
1944 ("ignore_remove_failures", False, ht.TBool,
1945 "Whether to ignore failures while removing instances"),
1946 ("mode", constants.EXPORT_MODE_LOCAL, ht.TElemOf(constants.EXPORT_MODES),
1948 ("x509_key_name", None, ht.TMaybe(ht.TList),
1949 "Name of X509 key (remote export only)"),
1950 ("destination_x509_ca", None, ht.TMaybeString,
1951 "Destination X509 CA (remote export only)"),
1954 ht.TAnd(ht.TIsLength(2), ht.TItems([
1955 ht.Comment("Finalizing status")(ht.TBool),
1956 ht.Comment("Status for every exported disk")(ht.TListOf(ht.TBool)),
1960 class OpBackupRemove(OpCode):
1961 """Remove an instance's export."""
1962 OP_DSC_FIELD = "instance_name"
1967 OP_RESULT = ht.TNone
1971 class OpTagsGet(OpCode):
1972 """Returns the tags of the given object."""
1973 OP_DSC_FIELD = "name"
1976 # Not using _PUseLocking as the default is different for historical reasons
1977 ("use_locking", True, ht.TBool, "Whether to use synchronization"),
1978 # Name is only meaningful for nodes and instances
1979 ("name", ht.NoDefault, ht.TMaybeString,
1980 "Name of object to retrieve tags from"),
1982 OP_RESULT = ht.TListOf(ht.TNonEmptyString)
1985 class OpTagsSearch(OpCode):
1986 """Searches the tags in the cluster for a given pattern."""
1987 OP_DSC_FIELD = "pattern"
1989 ("pattern", ht.NoDefault, ht.TNonEmptyString,
1990 "Search pattern (regular expression)"),
1992 OP_RESULT = ht.TListOf(ht.TAnd(ht.TIsLength(2), ht.TItems([
1998 class OpTagsSet(OpCode):
1999 """Add a list of tags on a given object."""
2003 # Name is only meaningful for groups, nodes and instances
2004 ("name", ht.NoDefault, ht.TMaybeString,
2005 "Name of object where tag(s) should be added"),
2007 OP_RESULT = ht.TNone
2010 class OpTagsDel(OpCode):
2011 """Remove a list of tags from a given object."""
2015 # Name is only meaningful for groups, nodes and instances
2016 ("name", ht.NoDefault, ht.TMaybeString,
2017 "Name of object where tag(s) should be deleted"),
2019 OP_RESULT = ht.TNone
2023 class OpTestDelay(OpCode):
2024 """Sleeps for a configured amount of time.
2026 This is used just for debugging and testing.
2029 - duration: the time to sleep, in seconds
2030 - on_master: if true, sleep on the master
2031 - on_nodes: list of nodes in which to sleep
2033 If the on_master parameter is true, it will execute a sleep on the
2034 master (before any node sleep).
2036 If the on_nodes list is not empty, it will sleep on those nodes
2037 (after the sleep on the master, if that is enabled).
2039 As an additional feature, the case of duration < 0 will be reported
2040 as an execution error, so this opcode can be used as a failure
2041 generator. The case of duration == 0 will not be treated specially.
2044 OP_DSC_FIELD = "duration"
2046 ("duration", ht.NoDefault, ht.TNumber, None),
2047 ("on_master", True, ht.TBool, None),
2048 ("on_nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None),
2049 ("on_node_uuids", None, ht.TMaybeListOf(ht.TNonEmptyString), None),
2050 ("repeat", 0, ht.TNonNegativeInt, None),
2053 def OP_DSC_FORMATTER(self, value): # pylint: disable=C0103,R0201
2054 """Custom formatter for duration.
2064 class OpTestAllocator(OpCode):
2065 """Allocator framework testing.
2067 This opcode has two modes:
2068 - gather and return allocator input for a given mode (allocate new
2069 or replace secondary) and a given instance definition (direction
2071 - run a selected allocator for a given operation (as above) and
2072 return the allocator output (direction 'out')
2075 OP_DSC_FIELD = "iallocator"
2077 ("direction", ht.NoDefault,
2078 ht.TElemOf(constants.VALID_IALLOCATOR_DIRECTIONS), None),
2079 ("mode", ht.NoDefault, ht.TElemOf(constants.VALID_IALLOCATOR_MODES), None),
2080 ("name", ht.NoDefault, ht.TNonEmptyString, None),
2081 ("nics", ht.NoDefault,
2082 ht.TMaybeListOf(ht.TDictOf(ht.TElemOf([constants.INIC_MAC,
2087 ("disks", ht.NoDefault, ht.TMaybe(ht.TList), None),
2088 ("hypervisor", None, ht.TMaybeString, None),
2089 _PIAllocFromDesc(None),
2090 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None),
2091 ("memory", None, ht.TMaybe(ht.TNonNegativeInt), None),
2092 ("vcpus", None, ht.TMaybe(ht.TNonNegativeInt), None),
2093 ("os", None, ht.TMaybeString, None),
2094 ("disk_template", None, ht.TMaybeString, None),
2095 ("instances", None, ht.TMaybeListOf(ht.TNonEmptyString), None),
2097 ht.TMaybe(ht.TElemOf(constants.IALLOCATOR_NEVAC_MODES)), None),
2098 ("target_groups", None, ht.TMaybeListOf(ht.TNonEmptyString), None),
2099 ("spindle_use", 1, ht.TNonNegativeInt, None),
2100 ("count", 1, ht.TNonNegativeInt, None),
2104 class OpTestJqueue(OpCode):
2105 """Utility opcode to test some aspects of the job queue.
2109 ("notify_waitlock", False, ht.TBool, None),
2110 ("notify_exec", False, ht.TBool, None),
2111 ("log_messages", ht.EmptyList, ht.TListOf(ht.TString), None),
2112 ("fail", False, ht.TBool, None),
2116 class OpTestDummy(OpCode):
2117 """Utility opcode used by unittests.
2121 ("result", ht.NoDefault, ht.NoType, None),
2122 ("messages", ht.NoDefault, ht.NoType, None),
2123 ("fail", ht.NoDefault, ht.NoType, None),
2124 ("submit_jobs", None, ht.NoType, None),
2130 # Add a new network in the cluster
2131 class OpNetworkAdd(OpCode):
2132 """Add an IP network to the cluster."""
2133 OP_DSC_FIELD = "network_name"
2136 ("network", ht.NoDefault, _TIpNetwork4, "IPv4 subnet"),
2137 ("gateway", None, ht.TMaybe(_TIpAddress4), "IPv4 gateway"),
2138 ("network6", None, ht.TMaybe(_TIpNetwork6), "IPv6 subnet"),
2139 ("gateway6", None, ht.TMaybe(_TIpAddress6), "IPv6 gateway"),
2140 ("mac_prefix", None, ht.TMaybeString,
2141 "MAC address prefix that overrides cluster one"),
2142 ("add_reserved_ips", None, _TMaybeAddr4List,
2143 "Which IP addresses to reserve"),
2144 ("conflicts_check", True, ht.TBool,
2145 "Whether to check for conflicting IP addresses"),
2146 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "Network tags"),
2148 OP_RESULT = ht.TNone
2151 class OpNetworkRemove(OpCode):
2152 """Remove an existing network from the cluster.
2153 Must not be connected to any nodegroup.
2156 OP_DSC_FIELD = "network_name"
2161 OP_RESULT = ht.TNone
2164 class OpNetworkSetParams(OpCode):
2165 """Modify Network's parameters except for IPv4 subnet"""
2166 OP_DSC_FIELD = "network_name"
2169 ("gateway", None, ht.TMaybeValueNone(_TIpAddress4), "IPv4 gateway"),
2170 ("network6", None, ht.TMaybeValueNone(_TIpNetwork6), "IPv6 subnet"),
2171 ("gateway6", None, ht.TMaybeValueNone(_TIpAddress6), "IPv6 gateway"),
2172 ("mac_prefix", None, ht.TMaybeValueNone(ht.TString),
2173 "MAC address prefix that overrides cluster one"),
2174 ("add_reserved_ips", None, _TMaybeAddr4List,
2175 "Which external IP addresses to reserve"),
2176 ("remove_reserved_ips", None, _TMaybeAddr4List,
2177 "Which external IP addresses to release"),
2179 OP_RESULT = ht.TNone
2182 class OpNetworkConnect(OpCode):
2183 """Connect a Network to a specific Nodegroup with the defined netparams
2184 (mode, link). Nics in this Network will inherit those params.
2185 Produce errors if a NIC (that its not already assigned to a network)
2186 has an IP that is contained in the Network this will produce error unless
2187 --no-conflicts-check is passed.
2190 OP_DSC_FIELD = "network_name"
2194 ("network_mode", ht.NoDefault, ht.TElemOf(constants.NIC_VALID_MODES),
2195 "Connectivity mode"),
2196 ("network_link", ht.NoDefault, ht.TString, "Connectivity link"),
2197 ("conflicts_check", True, ht.TBool, "Whether to check for conflicting IPs"),
2199 OP_RESULT = ht.TNone
2202 class OpNetworkDisconnect(OpCode):
2203 """Disconnect a Network from a Nodegroup. Produce errors if NICs are
2204 present in the Network unless --no-conficts-check option is passed.
2207 OP_DSC_FIELD = "network_name"
2212 OP_RESULT = ht.TNone
2215 class OpNetworkQuery(OpCode):
2216 """Compute the list of networks."""
2220 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
2221 "Empty list to query all groups, group names otherwise"),
2223 OP_RESULT = _TOldQueryResult
2227 """Returns list of all defined opcodes.
2229 Does not eliminate duplicates by C{OP_ID}.
2232 return [v for v in globals().values()
2233 if (isinstance(v, type) and issubclass(v, OpCode) and
2234 hasattr(v, "OP_ID") and v is not OpCode)]
2237 OP_MAPPING = dict((v.OP_ID, v) for v in _GetOpList())