4 # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Google Inc.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful, but
12 # WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 # General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
24 This module implements the data structures which define the cluster
25 operations - the so-called opcodes.
27 Every operation which modifies the cluster state is expressed via
32 # this are practically structures, so disable the message about too
34 # pylint: disable=R0903
40 from ganeti import constants
41 from ganeti import errors
43 from ganeti import objects
44 from ganeti import objectutils
47 # Common opcode attributes
49 #: output fields for a query operation
50 _POutputFields = ("output_fields", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
51 "Selected output fields")
53 #: the shutdown timeout
55 ("shutdown_timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT, ht.TNonNegativeInt,
56 "How long to wait for instance to shut down")
58 #: the force parameter
59 _PForce = ("force", False, ht.TBool, "Whether to force the operation")
61 #: a required instance name (for single-instance LUs)
62 _PInstanceName = ("instance_name", ht.NoDefault, ht.TNonEmptyString,
65 #: Whether to ignore offline nodes
66 _PIgnoreOfflineNodes = ("ignore_offline_nodes", False, ht.TBool,
67 "Whether to ignore offline nodes")
69 #: a required node name (for single-node LUs)
70 _PNodeName = ("node_name", ht.NoDefault, ht.TNonEmptyString, "Node name")
72 #: a required node group name (for single-group LUs)
73 _PGroupName = ("group_name", ht.NoDefault, ht.TNonEmptyString, "Group name")
75 #: Migration type (live/non-live)
76 _PMigrationMode = ("mode", None,
77 ht.TMaybe(ht.TElemOf(constants.HT_MIGRATION_MODES)),
80 #: Obsolete 'live' migration mode (boolean)
81 _PMigrationLive = ("live", None, ht.TMaybeBool,
82 "Legacy setting for live migration, do not use")
85 _PTagKind = ("kind", ht.NoDefault, ht.TElemOf(constants.VALID_TAG_TYPES),
88 #: List of tag strings
89 _PTags = ("tags", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
92 _PForceVariant = ("force_variant", False, ht.TBool,
93 "Whether to force an unknown OS variant")
95 _PWaitForSync = ("wait_for_sync", True, ht.TBool,
96 "Whether to wait for the disk to synchronize")
98 _PWaitForSyncFalse = ("wait_for_sync", False, ht.TBool,
99 "Whether to wait for the disk to synchronize"
100 " (defaults to false)")
102 _PIgnoreConsistency = ("ignore_consistency", False, ht.TBool,
103 "Whether to ignore disk consistency")
105 _PStorageName = ("name", ht.NoDefault, ht.TMaybeString, "Storage name")
107 _PUseLocking = ("use_locking", False, ht.TBool,
108 "Whether to use synchronization")
110 _PNameCheck = ("name_check", True, ht.TBool, "Whether to check name")
112 _PNodeGroupAllocPolicy = \
113 ("alloc_policy", None,
114 ht.TMaybe(ht.TElemOf(constants.VALID_ALLOC_POLICIES)),
115 "Instance allocation policy")
117 _PGroupNodeParams = ("ndparams", None, ht.TMaybeDict,
118 "Default node parameters for group")
120 _PQueryWhat = ("what", ht.NoDefault, ht.TElemOf(constants.QR_VIA_OP),
121 "Resource(s) to query for")
123 _PEarlyRelease = ("early_release", False, ht.TBool,
124 "Whether to release locks as soon as possible")
126 _PIpCheckDoc = "Whether to ensure instance's IP address is inactive"
128 #: Do not remember instance state changes
129 _PNoRemember = ("no_remember", False, ht.TBool,
130 "Do not remember the state change")
132 #: Target node for instance migration/failover
133 _PMigrationTargetNode = ("target_node", None, ht.TMaybeString,
134 "Target node for shared-storage instances")
136 _PStartupPaused = ("startup_paused", False, ht.TBool,
137 "Pause instance at startup")
139 _PVerbose = ("verbose", False, ht.TBool, "Verbose mode")
141 # Parameters for cluster verification
142 _PDebugSimulateErrors = ("debug_simulate_errors", False, ht.TBool,
143 "Whether to simulate errors (useful for debugging)")
144 _PErrorCodes = ("error_codes", False, ht.TBool, "Error codes")
145 _PSkipChecks = ("skip_checks", ht.EmptyList,
146 ht.TListOf(ht.TElemOf(constants.VERIFY_OPTIONAL_CHECKS)),
147 "Which checks to skip")
148 _PIgnoreErrors = ("ignore_errors", ht.EmptyList,
149 ht.TListOf(ht.TElemOf(constants.CV_ALL_ECODES_STRINGS)),
150 "List of error codes that should be treated as warnings")
155 ht.TMaybe(ht.TDictOf(ht.TElemOf(constants.DISK_TEMPLATES), ht.TDict)),
156 "Disk templates' parameter defaults")
158 # Parameters for node resource model
159 _PHvState = ("hv_state", None, ht.TMaybeDict, "Set hypervisor states")
160 _PDiskState = ("disk_state", None, ht.TMaybeDict, "Set disk states")
162 #: Opportunistic locking
163 _POpportunisticLocking = \
164 ("opportunistic_locking", False, ht.TBool,
165 ("Whether to employ opportunistic locking for nodes, meaning nodes"
166 " already locked by another opcode won't be considered for instance"
167 " allocation (only when an iallocator is used)"))
169 _PIgnoreIpolicy = ("ignore_ipolicy", False, ht.TBool,
170 "Whether to ignore ipolicy violations")
172 # Allow runtime changes while migrating
173 _PAllowRuntimeChgs = ("allow_runtime_changes", True, ht.TBool,
174 "Allow runtime changes (eg. memory ballooning)")
176 #: IAllocator field builder
177 _PIAllocFromDesc = lambda desc: ("iallocator", None, ht.TMaybeString, desc)
179 #: a required network name
180 _PNetworkName = ("network_name", ht.NoDefault, ht.TNonEmptyString,
183 #: OP_ID conversion regular expression
184 _OPID_RE = re.compile("([a-z])([A-Z])")
186 #: Utility function for L{OpClusterSetParams}
187 _TestClusterOsListItem = \
188 ht.TAnd(ht.TIsLength(2), ht.TItems([
189 ht.TElemOf(constants.DDMS_VALUES),
193 _TestClusterOsList = ht.TMaybeListOf(_TestClusterOsListItem)
195 # TODO: Generate check from constants.INIC_PARAMS_TYPES
196 #: Utility function for testing NIC definitions
198 ht.Comment("NIC parameters")(ht.TDictOf(ht.TElemOf(constants.INIC_PARAMS),
201 _TSetParamsResultItemItems = [
202 ht.Comment("name of changed parameter")(ht.TNonEmptyString),
203 ht.Comment("new value")(ht.TAny),
206 _TSetParamsResult = \
207 ht.TListOf(ht.TAnd(ht.TIsLength(len(_TSetParamsResultItemItems)),
208 ht.TItems(_TSetParamsResultItemItems)))
210 # In the disks option we can provide arbitrary parameters too, which
211 # we may not be able to validate at this level, so we just check the
212 # format of the dict here and the checks concerning IDISK_PARAMS will
213 # happen at the LU level
215 ht.Comment("Disk parameters")(ht.TDictOf(ht.TNonEmptyString,
216 ht.TOr(ht.TNonEmptyString, ht.TInt)))
219 ht.TListOf(ht.TAnd(ht.TIsLength(2),
220 ht.TItems([ht.TElemOf(constants.RS_ALL),
223 _TQueryResult = ht.TListOf(_TQueryRow)
225 _TOldQueryRow = ht.TListOf(ht.TAny)
227 _TOldQueryResult = ht.TListOf(_TOldQueryRow)
237 #: Attribute name for dependencies
238 DEPEND_ATTR = "depends"
240 #: Attribute name for comment
241 COMMENT_ATTR = "comment"
245 """Convert an opcode class name to an OP_ID.
248 @param name: the class name, as OpXxxYyy
250 @return: the name in the OP_XXXX_YYYY format
253 if not name.startswith("Op"):
255 # Note: (?<=[a-z])(?=[A-Z]) would be ideal, since it wouldn't
256 # consume any input, and hence we would just have all the elements
257 # in the list, one by one; but it seems that split doesn't work on
258 # non-consuming input, hence we have to process the input string a
260 name = _OPID_RE.sub(r"\1,\2", name)
261 elems = name.split(",")
262 return "_".join(n.upper() for n in elems)
265 def _GenerateObjectTypeCheck(obj, fields_types):
266 """Helper to generate type checks for objects.
268 @param obj: The object to generate type checks
269 @param fields_types: The fields and their types as a dict
270 @return: A ht type check function
273 assert set(obj.GetAllSlots()) == set(fields_types.keys()), \
274 "%s != %s" % (set(obj.GetAllSlots()), set(fields_types.keys()))
275 return ht.TStrictDict(True, True, fields_types)
279 _GenerateObjectTypeCheck(objects.QueryFieldDefinition, {
280 "name": ht.TNonEmptyString,
281 "title": ht.TNonEmptyString,
282 "kind": ht.TElemOf(constants.QFT_ALL),
283 "doc": ht.TNonEmptyString,
287 def RequireFileStorage():
288 """Checks that file storage is enabled.
290 While it doesn't really fit into this module, L{utils} was deemed too large
291 of a dependency to be imported for just one or two functions.
293 @raise errors.OpPrereqError: when file storage is disabled
296 if not constants.ENABLE_FILE_STORAGE:
297 raise errors.OpPrereqError("File storage disabled at configure time",
301 def RequireSharedFileStorage():
302 """Checks that shared file storage is enabled.
304 While it doesn't really fit into this module, L{utils} was deemed too large
305 of a dependency to be imported for just one or two functions.
307 @raise errors.OpPrereqError: when shared file storage is disabled
310 if not constants.ENABLE_SHARED_FILE_STORAGE:
311 raise errors.OpPrereqError("Shared file storage disabled at"
312 " configure time", errors.ECODE_INVAL)
315 @ht.WithDesc("CheckFileStorage")
316 def _CheckFileStorage(value):
317 """Ensures file storage is enabled if used.
320 if value == constants.DT_FILE:
322 elif value == constants.DT_SHARED_FILE:
323 RequireSharedFileStorage()
327 def _BuildDiskTemplateCheck(accept_none):
328 """Builds check for disk template.
330 @type accept_none: bool
331 @param accept_none: whether to accept None as a correct value
335 template_check = ht.TElemOf(constants.DISK_TEMPLATES)
338 template_check = ht.TMaybe(template_check)
340 return ht.TAnd(template_check, _CheckFileStorage)
343 def _CheckStorageType(storage_type):
344 """Ensure a given storage type is valid.
347 if storage_type not in constants.VALID_STORAGE_TYPES:
348 raise errors.OpPrereqError("Unknown storage type: %s" % storage_type,
350 if storage_type == constants.ST_FILE:
351 # TODO: What about shared file storage?
356 #: Storage type parameter
357 _PStorageType = ("storage_type", ht.NoDefault, _CheckStorageType,
360 _CheckNetworkType = ht.TElemOf(constants.NETWORK_VALID_TYPES)
363 @ht.WithDesc("IPv4 network")
364 def _CheckCIDRNetNotation(value):
365 """Ensure a given CIDR notation type is valid.
369 ipaddr.IPv4Network(value)
370 except ipaddr.AddressValueError:
375 @ht.WithDesc("IPv4 address")
376 def _CheckCIDRAddrNotation(value):
377 """Ensure a given CIDR notation type is valid.
381 ipaddr.IPv4Address(value)
382 except ipaddr.AddressValueError:
387 @ht.WithDesc("IPv6 address")
388 def _CheckCIDR6AddrNotation(value):
389 """Ensure a given CIDR notation type is valid.
393 ipaddr.IPv6Address(value)
394 except ipaddr.AddressValueError:
399 @ht.WithDesc("IPv6 network")
400 def _CheckCIDR6NetNotation(value):
401 """Ensure a given CIDR notation type is valid.
405 ipaddr.IPv6Network(value)
406 except ipaddr.AddressValueError:
411 _TIpAddress4 = ht.TAnd(ht.TString, _CheckCIDRAddrNotation)
412 _TIpAddress6 = ht.TAnd(ht.TString, _CheckCIDR6AddrNotation)
413 _TIpNetwork4 = ht.TAnd(ht.TString, _CheckCIDRNetNotation)
414 _TIpNetwork6 = ht.TAnd(ht.TString, _CheckCIDR6NetNotation)
415 _TMaybeAddr4List = ht.TMaybe(ht.TListOf(_TIpAddress4))
418 class _AutoOpParamSlots(objectutils.AutoSlots):
419 """Meta class for opcode definitions.
422 def __new__(mcs, name, bases, attrs):
423 """Called when a class should be created.
425 @param mcs: The meta class
426 @param name: Name of created class
427 @param bases: Base classes
429 @param attrs: Class attributes
432 assert "OP_ID" not in attrs, "Class '%s' defining OP_ID" % name
434 slots = mcs._GetSlots(attrs)
435 assert "OP_DSC_FIELD" not in attrs or attrs["OP_DSC_FIELD"] in slots, \
436 "Class '%s' uses unknown field in OP_DSC_FIELD" % name
437 assert ("OP_DSC_FORMATTER" not in attrs or
438 callable(attrs["OP_DSC_FORMATTER"])), \
439 ("Class '%s' uses non-callable in OP_DSC_FORMATTER (%s)" %
440 (name, type(attrs["OP_DSC_FORMATTER"])))
442 attrs["OP_ID"] = _NameToId(name)
444 return objectutils.AutoSlots.__new__(mcs, name, bases, attrs)
447 def _GetSlots(mcs, attrs):
448 """Build the slots out of OP_PARAMS.
451 # Always set OP_PARAMS to avoid duplicates in BaseOpCode.GetAllParams
452 params = attrs.setdefault("OP_PARAMS", [])
454 # Use parameter names as slots
455 return [pname for (pname, _, _, _) in params]
458 class BaseOpCode(objectutils.ValidatedSlots):
459 """A simple serializable object.
461 This object serves as a parent class for OpCode without any custom
465 # pylint: disable=E1101
466 # as OP_ID is dynamically defined
467 __metaclass__ = _AutoOpParamSlots
469 def __getstate__(self):
470 """Generic serializer.
472 This method just returns the contents of the instance as a
476 @return: the instance attributes and their values
480 for name in self.GetAllSlots():
481 if hasattr(self, name):
482 state[name] = getattr(self, name)
485 def __setstate__(self, state):
486 """Generic unserializer.
488 This method just restores from the serialized state the attributes
489 of the current instance.
491 @param state: the serialized opcode data
495 if not isinstance(state, dict):
496 raise ValueError("Invalid data to __setstate__: expected dict, got %s" %
499 for name in self.GetAllSlots():
500 if name not in state and hasattr(self, name):
504 setattr(self, name, state[name])
507 def GetAllParams(cls):
508 """Compute list of all parameters for an opcode.
512 for parent in cls.__mro__:
513 slots.extend(getattr(parent, "OP_PARAMS", []))
516 def Validate(self, set_defaults): # pylint: disable=W0221
517 """Validate opcode parameters, optionally setting default values.
519 @type set_defaults: bool
520 @param set_defaults: Whether to set default values
521 @raise errors.OpPrereqError: When a parameter value doesn't match
525 for (attr_name, default, test, _) in self.GetAllParams():
526 assert test == ht.NoType or callable(test)
528 if not hasattr(self, attr_name):
529 if default == ht.NoDefault:
530 raise errors.OpPrereqError("Required parameter '%s.%s' missing" %
531 (self.OP_ID, attr_name),
534 if callable(default):
538 setattr(self, attr_name, dval)
540 if test == ht.NoType:
544 if set_defaults or hasattr(self, attr_name):
545 attr_val = getattr(self, attr_name)
546 if not test(attr_val):
547 logging.error("OpCode %s, parameter %s, has invalid type %s/value"
548 " '%s' expecting type %s",
549 self.OP_ID, attr_name, type(attr_val), attr_val, test)
550 raise errors.OpPrereqError("Parameter '%s.%s' fails validation" %
551 (self.OP_ID, attr_name),
555 def _BuildJobDepCheck(relative):
556 """Builds check for job dependencies (L{DEPEND_ATTR}).
559 @param relative: Whether to accept relative job IDs (negative)
564 job_id = ht.TOr(ht.TJobId, ht.TRelativeJobId)
569 ht.TAnd(ht.TOr(ht.TList, ht.TTuple),
572 ht.TListOf(ht.TElemOf(constants.JOBS_FINALIZED))]))
574 return ht.TMaybeListOf(job_dep)
577 TNoRelativeJobDependencies = _BuildJobDepCheck(False)
579 #: List of submission status and job ID as returned by C{SubmitManyJobs}
581 ht.TAnd(ht.TIsLength(2),
582 ht.TItems([ht.Comment("success")(ht.TBool),
583 ht.Comment("Job ID if successful, error message"
584 " otherwise")(ht.TOr(ht.TString,
586 TJobIdList = ht.TListOf(_TJobIdListItem)
588 #: Result containing only list of submitted jobs
589 TJobIdListOnly = ht.TStrictDict(True, True, {
590 constants.JOB_IDS_KEY: ht.Comment("List of submitted jobs")(TJobIdList),
594 class OpCode(BaseOpCode):
597 This is the root of the actual OpCode hierarchy. All clases derived
598 from this class should override OP_ID.
600 @cvar OP_ID: The ID of this opcode. This should be unique amongst all
601 children of this class.
602 @cvar OP_DSC_FIELD: The name of a field whose value will be included in the
603 string returned by Summary(); see the docstring of that
605 @cvar OP_DSC_FORMATTER: A callable that should format the OP_DSC_FIELD; if
606 not present, then the field will be simply converted
608 @cvar OP_PARAMS: List of opcode attributes, the default values they should
609 get if not already defined, and types they must match.
610 @cvar OP_RESULT: Callable to verify opcode result
611 @cvar WITH_LU: Boolean that specifies whether this should be included in
612 mcpu's dispatch table
613 @ivar dry_run: Whether the LU should be run in dry-run mode, i.e. just
615 @ivar priority: Opcode priority for queue
618 # pylint: disable=E1101
619 # as OP_ID is dynamically defined
622 ("dry_run", None, ht.TMaybeBool, "Run checks only, don't execute"),
623 ("debug_level", None, ht.TMaybe(ht.TNonNegativeInt), "Debug level"),
624 ("priority", constants.OP_PRIO_DEFAULT,
625 ht.TElemOf(constants.OP_PRIO_SUBMIT_VALID), "Opcode priority"),
626 (DEPEND_ATTR, None, _BuildJobDepCheck(True),
627 "Job dependencies; if used through ``SubmitManyJobs`` relative (negative)"
628 " job IDs can be used; see :doc:`design document <design-chained-jobs>`"
630 (COMMENT_ATTR, None, ht.TMaybeString,
631 "Comment describing the purpose of the opcode"),
635 def __getstate__(self):
636 """Specialized getstate for opcodes.
638 This method adds to the state dictionary the OP_ID of the class,
639 so that on unload we can identify the correct class for
640 instantiating the opcode.
643 @return: the state as a dictionary
646 data = BaseOpCode.__getstate__(self)
647 data["OP_ID"] = self.OP_ID
651 def LoadOpCode(cls, data):
652 """Generic load opcode method.
654 The method identifies the correct opcode class from the dict-form
655 by looking for a OP_ID key, if this is not found, or its value is
656 not available in this module as a child of this class, we fail.
659 @param data: the serialized opcode
662 if not isinstance(data, dict):
663 raise ValueError("Invalid data to LoadOpCode (%s)" % type(data))
664 if "OP_ID" not in data:
665 raise ValueError("Invalid data to LoadOpcode, missing OP_ID")
666 op_id = data["OP_ID"]
668 if op_id in OP_MAPPING:
669 op_class = OP_MAPPING[op_id]
671 raise ValueError("Invalid data to LoadOpCode: OP_ID %s unsupported" %
674 new_data = data.copy()
675 del new_data["OP_ID"]
676 op.__setstate__(new_data)
680 """Generates a summary description of this opcode.
682 The summary is the value of the OP_ID attribute (without the "OP_"
683 prefix), plus the value of the OP_DSC_FIELD attribute, if one was
684 defined; this field should allow to easily identify the operation
685 (for an instance creation job, e.g., it would be the instance
689 assert self.OP_ID is not None and len(self.OP_ID) > 3
690 # all OP_ID start with OP_, we remove that
692 field_name = getattr(self, "OP_DSC_FIELD", None)
694 field_value = getattr(self, field_name, None)
695 field_formatter = getattr(self, "OP_DSC_FORMATTER", None)
696 if callable(field_formatter):
697 field_value = field_formatter(field_value)
698 elif isinstance(field_value, (list, tuple)):
699 field_value = ",".join(str(i) for i in field_value)
700 txt = "%s(%s)" % (txt, field_value)
703 def TinySummary(self):
704 """Generates a compact summary description of the opcode.
707 assert self.OP_ID.startswith("OP_")
709 text = self.OP_ID[3:]
711 for (prefix, supplement) in _SUMMARY_PREFIX.items():
712 if text.startswith(prefix):
713 return supplement + text[len(prefix):]
720 class OpClusterPostInit(OpCode):
721 """Post cluster initialization.
723 This opcode does not touch the cluster at all. Its purpose is to run hooks
724 after the cluster has been initialized.
730 class OpClusterDestroy(OpCode):
731 """Destroy the cluster.
733 This opcode has no other parameters. All the state is irreversibly
734 lost after the execution of this opcode.
737 OP_RESULT = ht.TNonEmptyString
740 class OpClusterQuery(OpCode):
741 """Query cluster information."""
742 OP_RESULT = ht.TDictOf(ht.TNonEmptyString, ht.TAny)
745 class OpClusterVerify(OpCode):
746 """Submits all jobs necessary to verify the cluster.
750 _PDebugSimulateErrors,
755 ("group_name", None, ht.TMaybeString, "Group to verify"),
757 OP_RESULT = TJobIdListOnly
760 class OpClusterVerifyConfig(OpCode):
761 """Verify the cluster config.
765 _PDebugSimulateErrors,
773 class OpClusterVerifyGroup(OpCode):
774 """Run verify on a node group from the cluster.
776 @type skip_checks: C{list}
777 @ivar skip_checks: steps to be skipped from the verify process; this
778 needs to be a subset of
779 L{constants.VERIFY_OPTIONAL_CHECKS}; currently
780 only L{constants.VERIFY_NPLUSONE_MEM} can be passed
783 OP_DSC_FIELD = "group_name"
786 _PDebugSimulateErrors,
795 class OpClusterVerifyDisks(OpCode):
796 """Verify the cluster disks.
799 OP_RESULT = TJobIdListOnly
802 class OpGroupVerifyDisks(OpCode):
803 """Verifies the status of all disks in a node group.
805 Result: a tuple of three elements:
806 - dict of node names with issues (values: error msg)
807 - list of instances with degraded disks (that should be activated)
808 - dict of instances with missing logical volumes (values: (node, vol)
809 pairs with details about the missing volumes)
811 In normal operation, all lists should be empty. A non-empty instance
812 list (3rd element of the result) is still ok (errors were fixed) but
813 non-empty node list means some node is down, and probably there are
814 unfixable drbd errors.
816 Note that only instances that are drbd-based are taken into
817 consideration. This might need to be revisited in the future.
820 OP_DSC_FIELD = "group_name"
825 ht.TAnd(ht.TIsLength(3),
826 ht.TItems([ht.TDictOf(ht.TString, ht.TString),
827 ht.TListOf(ht.TString),
828 ht.TDictOf(ht.TString,
829 ht.TListOf(ht.TListOf(ht.TString)))]))
832 class OpClusterRepairDiskSizes(OpCode):
833 """Verify the disk sizes of the instances and fixes configuration
836 Parameters: optional instances list, in case we want to restrict the
837 checks to only a subset of the instances.
839 Result: a list of tuples, (instance, disk, new-size) for changed
842 In normal operation, the list should be empty.
844 @type instances: list
845 @ivar instances: the list of instances to check, or empty for all instances
849 ("instances", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None),
851 OP_RESULT = ht.TListOf(ht.TAnd(ht.TIsLength(3),
852 ht.TItems([ht.TNonEmptyString,
854 ht.TNonNegativeInt])))
857 class OpClusterConfigQuery(OpCode):
858 """Query cluster configuration values."""
862 OP_RESULT = ht.TListOf(ht.TAny)
865 class OpClusterRename(OpCode):
866 """Rename the cluster.
869 @ivar name: The new name of the cluster. The name and/or the master IP
870 address will be changed to match the new name and its IP
874 OP_DSC_FIELD = "name"
876 ("name", ht.NoDefault, ht.TNonEmptyString, None),
878 OP_RESULT = ht.TNonEmptyString
881 class OpClusterSetParams(OpCode):
882 """Change the parameters of the cluster.
884 @type vg_name: C{str} or C{None}
885 @ivar vg_name: The new volume group name or None to disable LVM usage.
891 ("vg_name", None, ht.TMaybe(ht.TString), "Volume group name"),
892 ("enabled_hypervisors", None,
893 ht.TMaybe(ht.TAnd(ht.TListOf(ht.TElemOf(constants.HYPER_TYPES)),
895 "List of enabled hypervisors"),
897 ht.TMaybe(ht.TDictOf(ht.TNonEmptyString, ht.TDict)),
898 "Cluster-wide hypervisor parameter defaults, hypervisor-dependent"),
899 ("beparams", None, ht.TMaybeDict,
900 "Cluster-wide backend parameter defaults"),
901 ("os_hvp", None, ht.TMaybe(ht.TDictOf(ht.TNonEmptyString, ht.TDict)),
902 "Cluster-wide per-OS hypervisor parameter defaults"),
904 ht.TMaybe(ht.TDictOf(ht.TNonEmptyString, ht.TDict)),
905 "Cluster-wide OS parameter defaults"),
907 ("candidate_pool_size", None, ht.TMaybe(ht.TPositiveInt),
908 "Master candidate pool size"),
909 ("uid_pool", None, ht.NoType,
910 "Set UID pool, must be list of lists describing UID ranges (two items,"
911 " start and end inclusive)"),
912 ("add_uids", None, ht.NoType,
913 "Extend UID pool, must be list of lists describing UID ranges (two"
914 " items, start and end inclusive) to be added"),
915 ("remove_uids", None, ht.NoType,
916 "Shrink UID pool, must be list of lists describing UID ranges (two"
917 " items, start and end inclusive) to be removed"),
918 ("maintain_node_health", None, ht.TMaybeBool,
919 "Whether to automatically maintain node health"),
920 ("prealloc_wipe_disks", None, ht.TMaybeBool,
921 "Whether to wipe disks before allocating them to instances"),
922 ("nicparams", None, ht.TMaybeDict, "Cluster-wide NIC parameter defaults"),
923 ("ndparams", None, ht.TMaybeDict, "Cluster-wide node parameter defaults"),
924 ("ipolicy", None, ht.TMaybeDict,
925 "Cluster-wide :ref:`instance policy <rapi-ipolicy>` specs"),
926 ("drbd_helper", None, ht.TMaybe(ht.TString), "DRBD helper program"),
927 ("default_iallocator", None, ht.TMaybe(ht.TString),
928 "Default iallocator for cluster"),
929 ("master_netdev", None, ht.TMaybe(ht.TString),
930 "Master network device"),
931 ("master_netmask", None, ht.TMaybe(ht.TNonNegativeInt),
932 "Netmask of the master IP"),
933 ("reserved_lvs", None, ht.TMaybeListOf(ht.TNonEmptyString),
934 "List of reserved LVs"),
935 ("hidden_os", None, _TestClusterOsList,
936 "Modify list of hidden operating systems: each modification must have"
937 " two items, the operation and the OS name; the operation can be"
938 " ``%s`` or ``%s``" % (constants.DDM_ADD, constants.DDM_REMOVE)),
939 ("blacklisted_os", None, _TestClusterOsList,
940 "Modify list of blacklisted operating systems: each modification must"
941 " have two items, the operation and the OS name; the operation can be"
942 " ``%s`` or ``%s``" % (constants.DDM_ADD, constants.DDM_REMOVE)),
943 ("use_external_mip_script", None, ht.TMaybeBool,
944 "Whether to use an external master IP address setup script"),
949 class OpClusterRedistConf(OpCode):
950 """Force a full push of the cluster configuration.
956 class OpClusterActivateMasterIp(OpCode):
957 """Activate the master IP on the master node.
963 class OpClusterDeactivateMasterIp(OpCode):
964 """Deactivate the master IP on the master node.
970 class OpQuery(OpCode):
971 """Query for resources/items.
973 @ivar what: Resources to query for, must be one of L{constants.QR_VIA_OP}
974 @ivar fields: List of fields to retrieve
975 @ivar qfilter: Query filter
978 OP_DSC_FIELD = "what"
982 ("fields", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
984 ("qfilter", None, ht.TMaybe(ht.TList),
988 _GenerateObjectTypeCheck(objects.QueryResponse, {
989 "fields": ht.TListOf(_TQueryFieldDef),
990 "data": _TQueryResult,
994 class OpQueryFields(OpCode):
995 """Query for available resource/item fields.
997 @ivar what: Resources to query for, must be one of L{constants.QR_VIA_OP}
998 @ivar fields: List of fields to retrieve
1001 OP_DSC_FIELD = "what"
1004 ("fields", None, ht.TMaybeListOf(ht.TNonEmptyString),
1005 "Requested fields; if not given, all are returned"),
1008 _GenerateObjectTypeCheck(objects.QueryFieldsResponse, {
1009 "fields": ht.TListOf(_TQueryFieldDef),
1013 class OpOobCommand(OpCode):
1014 """Interact with OOB."""
1016 ("node_names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1017 "List of nodes to run the OOB command against"),
1018 ("command", ht.NoDefault, ht.TElemOf(constants.OOB_COMMANDS),
1019 "OOB command to be run"),
1020 ("timeout", constants.OOB_TIMEOUT, ht.TInt,
1021 "Timeout before the OOB helper will be terminated"),
1022 ("ignore_status", False, ht.TBool,
1023 "Ignores the node offline status for power off"),
1024 ("power_delay", constants.OOB_POWER_DELAY, ht.TNonNegativeFloat,
1025 "Time in seconds to wait between powering on nodes"),
1027 # Fixme: Make it more specific with all the special cases in LUOobCommand
1028 OP_RESULT = _TQueryResult
1031 class OpRestrictedCommand(OpCode):
1032 """Runs a restricted command on node(s).
1037 ("nodes", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
1038 "Nodes on which the command should be run (at least one)"),
1039 ("command", ht.NoDefault, ht.TNonEmptyString,
1040 "Command name (no parameters)"),
1044 ht.Comment("success")(ht.TBool),
1045 ht.Comment("output or error message")(ht.TString),
1049 ht.TListOf(ht.TAnd(ht.TIsLength(len(_RESULT_ITEMS)),
1050 ht.TItems(_RESULT_ITEMS)))
1055 class OpNodeRemove(OpCode):
1058 @type node_name: C{str}
1059 @ivar node_name: The name of the node to remove. If the node still has
1060 instances on it, the operation will fail.
1063 OP_DSC_FIELD = "node_name"
1067 OP_RESULT = ht.TNone
1070 class OpNodeAdd(OpCode):
1071 """Add a node to the cluster.
1073 @type node_name: C{str}
1074 @ivar node_name: The name of the node to add. This can be a short name,
1075 but it will be expanded to the FQDN.
1076 @type primary_ip: IP address
1077 @ivar primary_ip: The primary IP of the node. This will be ignored when the
1078 opcode is submitted, but will be filled during the node
1079 add (so it will be visible in the job query).
1080 @type secondary_ip: IP address
1081 @ivar secondary_ip: The secondary IP of the node. This needs to be passed
1082 if the cluster has been initialized in 'dual-network'
1083 mode, otherwise it must not be given.
1084 @type readd: C{bool}
1085 @ivar readd: Whether to re-add an existing node to the cluster. If
1086 this is not passed, then the operation will abort if the node
1087 name is already in the cluster; use this parameter to 'repair'
1088 a node that had its configuration broken, or was reinstalled
1089 without removal from the cluster.
1091 @ivar group: The node group to which this node will belong.
1092 @type vm_capable: C{bool}
1093 @ivar vm_capable: The vm_capable node attribute
1094 @type master_capable: C{bool}
1095 @ivar master_capable: The master_capable node attribute
1098 OP_DSC_FIELD = "node_name"
1103 ("primary_ip", None, ht.NoType, "Primary IP address"),
1104 ("secondary_ip", None, ht.TMaybeString, "Secondary IP address"),
1105 ("readd", False, ht.TBool, "Whether node is re-added to cluster"),
1106 ("group", None, ht.TMaybeString, "Initial node group"),
1107 ("master_capable", None, ht.TMaybeBool,
1108 "Whether node can become master or master candidate"),
1109 ("vm_capable", None, ht.TMaybeBool,
1110 "Whether node can host instances"),
1111 ("ndparams", None, ht.TMaybeDict, "Node parameters"),
1113 OP_RESULT = ht.TNone
1116 class OpNodeQuery(OpCode):
1117 """Compute the list of nodes."""
1121 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1122 "Empty list to query all nodes, node names otherwise"),
1124 OP_RESULT = _TOldQueryResult
1127 class OpNodeQueryvols(OpCode):
1128 """Get list of volumes on node."""
1131 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1132 "Empty list to query all nodes, node names otherwise"),
1134 OP_RESULT = ht.TListOf(ht.TAny)
1137 class OpNodeQueryStorage(OpCode):
1138 """Get information on storage for node(s)."""
1142 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "List of nodes"),
1143 ("name", None, ht.TMaybeString, "Storage name"),
1145 OP_RESULT = _TOldQueryResult
1148 class OpNodeModifyStorage(OpCode):
1149 """Modifies the properies of a storage unit"""
1150 OP_DSC_FIELD = "node_name"
1155 ("changes", ht.NoDefault, ht.TDict, "Requested changes"),
1157 OP_RESULT = ht.TNone
1160 class OpRepairNodeStorage(OpCode):
1161 """Repairs the volume group on a node."""
1162 OP_DSC_FIELD = "node_name"
1167 _PIgnoreConsistency,
1169 OP_RESULT = ht.TNone
1172 class OpNodeSetParams(OpCode):
1173 """Change the parameters of a node."""
1174 OP_DSC_FIELD = "node_name"
1180 ("master_candidate", None, ht.TMaybeBool,
1181 "Whether the node should become a master candidate"),
1182 ("offline", None, ht.TMaybeBool,
1183 "Whether the node should be marked as offline"),
1184 ("drained", None, ht.TMaybeBool,
1185 "Whether the node should be marked as drained"),
1186 ("auto_promote", False, ht.TBool,
1187 "Whether node(s) should be promoted to master candidate if necessary"),
1188 ("master_capable", None, ht.TMaybeBool,
1189 "Denote whether node can become master or master candidate"),
1190 ("vm_capable", None, ht.TMaybeBool,
1191 "Denote whether node can host instances"),
1192 ("secondary_ip", None, ht.TMaybeString,
1193 "Change node's secondary IP address"),
1194 ("ndparams", None, ht.TMaybeDict, "Set node parameters"),
1195 ("powered", None, ht.TMaybeBool,
1196 "Whether the node should be marked as powered"),
1198 OP_RESULT = _TSetParamsResult
1201 class OpNodePowercycle(OpCode):
1202 """Tries to powercycle a node."""
1203 OP_DSC_FIELD = "node_name"
1208 OP_RESULT = ht.TMaybeString
1211 class OpNodeMigrate(OpCode):
1212 """Migrate all instances from a node."""
1213 OP_DSC_FIELD = "node_name"
1218 _PMigrationTargetNode,
1221 _PIAllocFromDesc("Iallocator for deciding the target node"
1222 " for shared-storage instances"),
1224 OP_RESULT = TJobIdListOnly
1227 class OpNodeEvacuate(OpCode):
1228 """Evacuate instances off a number of nodes."""
1229 OP_DSC_FIELD = "node_name"
1233 ("remote_node", None, ht.TMaybeString, "New secondary node"),
1234 _PIAllocFromDesc("Iallocator for computing solution"),
1235 ("mode", ht.NoDefault, ht.TElemOf(constants.NODE_EVAC_MODES),
1236 "Node evacuation mode"),
1238 OP_RESULT = TJobIdListOnly
1243 class OpInstanceCreate(OpCode):
1244 """Create an instance.
1246 @ivar instance_name: Instance name
1247 @ivar mode: Instance creation mode (one of L{constants.INSTANCE_CREATE_MODES})
1248 @ivar source_handshake: Signed handshake from source (remote import only)
1249 @ivar source_x509_ca: Source X509 CA in PEM format (remote import only)
1250 @ivar source_instance_name: Previous name of instance (remote import only)
1251 @ivar source_shutdown_timeout: Shutdown timeout used for source instance
1252 (remote import only)
1255 OP_DSC_FIELD = "instance_name"
1262 _POpportunisticLocking,
1263 ("beparams", ht.EmptyDict, ht.TDict, "Backend parameters for instance"),
1264 ("disks", ht.NoDefault, ht.TListOf(_TDiskParams),
1265 "Disk descriptions, for example ``[{\"%s\": 100}, {\"%s\": 5}]``;"
1266 " each disk definition must contain a ``%s`` value and"
1267 " can contain an optional ``%s`` value denoting the disk access mode"
1269 (constants.IDISK_SIZE, constants.IDISK_SIZE, constants.IDISK_SIZE,
1270 constants.IDISK_MODE,
1271 " or ".join("``%s``" % i for i in sorted(constants.DISK_ACCESS_SET)))),
1272 ("disk_template", ht.NoDefault, _BuildDiskTemplateCheck(True),
1274 ("file_driver", None, ht.TMaybe(ht.TElemOf(constants.FILE_DRIVER)),
1275 "Driver for file-backed disks"),
1276 ("file_storage_dir", None, ht.TMaybeString,
1277 "Directory for storing file-backed disks"),
1278 ("hvparams", ht.EmptyDict, ht.TDict,
1279 "Hypervisor parameters for instance, hypervisor-dependent"),
1280 ("hypervisor", None, ht.TMaybeString, "Hypervisor"),
1281 _PIAllocFromDesc("Iallocator for deciding which node(s) to use"),
1282 ("identify_defaults", False, ht.TBool,
1283 "Reset instance parameters to default if equal"),
1284 ("ip_check", True, ht.TBool, _PIpCheckDoc),
1285 ("conflicts_check", True, ht.TBool, "Check for conflicting IPs"),
1286 ("mode", ht.NoDefault, ht.TElemOf(constants.INSTANCE_CREATE_MODES),
1287 "Instance creation mode"),
1288 ("nics", ht.NoDefault, ht.TListOf(_TestNicDef),
1289 "List of NIC (network interface) definitions, for example"
1290 " ``[{}, {}, {\"%s\": \"198.51.100.4\"}]``; each NIC definition can"
1291 " contain the optional values %s" %
1293 ", ".join("``%s``" % i for i in sorted(constants.INIC_PARAMS)))),
1294 ("no_install", None, ht.TMaybeBool,
1295 "Do not install the OS (will disable automatic start)"),
1296 ("osparams", ht.EmptyDict, ht.TDict, "OS parameters for instance"),
1297 ("os_type", None, ht.TMaybeString, "Operating system"),
1298 ("pnode", None, ht.TMaybeString, "Primary node"),
1299 ("snode", None, ht.TMaybeString, "Secondary node"),
1300 ("source_handshake", None, ht.TMaybe(ht.TList),
1301 "Signed handshake from source (remote import only)"),
1302 ("source_instance_name", None, ht.TMaybeString,
1303 "Source instance name (remote import only)"),
1304 ("source_shutdown_timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT,
1306 "How long source instance was given to shut down (remote import only)"),
1307 ("source_x509_ca", None, ht.TMaybeString,
1308 "Source X509 CA in PEM format (remote import only)"),
1309 ("src_node", None, ht.TMaybeString, "Source node for import"),
1310 ("src_path", None, ht.TMaybeString, "Source directory for import"),
1311 ("start", True, ht.TBool, "Whether to start instance after creation"),
1312 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "Instance tags"),
1314 OP_RESULT = ht.Comment("instance nodes")(ht.TListOf(ht.TNonEmptyString))
1317 class OpInstanceMultiAlloc(OpCode):
1318 """Allocates multiple instances.
1322 _POpportunisticLocking,
1323 _PIAllocFromDesc("Iallocator used to allocate all the instances"),
1324 ("instances", ht.EmptyList, ht.TListOf(ht.TInstanceOf(OpInstanceCreate)),
1325 "List of instance create opcodes describing the instances to allocate"),
1327 _JOB_LIST = ht.Comment("List of submitted jobs")(TJobIdList)
1328 ALLOCATABLE_KEY = "allocatable"
1329 FAILED_KEY = "allocatable"
1330 OP_RESULT = ht.TStrictDict(True, True, {
1331 constants.JOB_IDS_KEY: _JOB_LIST,
1332 ALLOCATABLE_KEY: ht.TListOf(ht.TNonEmptyString),
1333 FAILED_KEY: ht.TListOf(ht.TNonEmptyString),
1336 def __getstate__(self):
1337 """Generic serializer.
1340 state = OpCode.__getstate__(self)
1341 if hasattr(self, "instances"):
1342 # pylint: disable=E1101
1343 state["instances"] = [inst.__getstate__() for inst in self.instances]
1346 def __setstate__(self, state):
1347 """Generic unserializer.
1349 This method just restores from the serialized state the attributes
1350 of the current instance.
1352 @param state: the serialized opcode data
1353 @type state: C{dict}
1356 if not isinstance(state, dict):
1357 raise ValueError("Invalid data to __setstate__: expected dict, got %s" %
1360 if "instances" in state:
1361 state["instances"] = map(OpCode.LoadOpCode, state["instances"])
1363 return OpCode.__setstate__(self, state)
1365 def Validate(self, set_defaults):
1366 """Validates this opcode.
1368 We do this recursively.
1371 OpCode.Validate(self, set_defaults)
1373 for inst in self.instances: # pylint: disable=E1101
1374 inst.Validate(set_defaults)
1377 class OpInstanceReinstall(OpCode):
1378 """Reinstall an instance's OS."""
1379 OP_DSC_FIELD = "instance_name"
1383 ("os_type", None, ht.TMaybeString, "Instance operating system"),
1384 ("osparams", None, ht.TMaybeDict, "Temporary OS parameters"),
1386 OP_RESULT = ht.TNone
1389 class OpInstanceRemove(OpCode):
1390 """Remove an instance."""
1391 OP_DSC_FIELD = "instance_name"
1395 ("ignore_failures", False, ht.TBool,
1396 "Whether to ignore failures during removal"),
1398 OP_RESULT = ht.TNone
1401 class OpInstanceRename(OpCode):
1402 """Rename an instance."""
1406 ("new_name", ht.NoDefault, ht.TNonEmptyString, "New instance name"),
1407 ("ip_check", False, ht.TBool, _PIpCheckDoc),
1409 OP_RESULT = ht.Comment("New instance name")(ht.TNonEmptyString)
1412 class OpInstanceStartup(OpCode):
1413 """Startup an instance."""
1414 OP_DSC_FIELD = "instance_name"
1418 _PIgnoreOfflineNodes,
1419 ("hvparams", ht.EmptyDict, ht.TDict,
1420 "Temporary hypervisor parameters, hypervisor-dependent"),
1421 ("beparams", ht.EmptyDict, ht.TDict, "Temporary backend parameters"),
1425 OP_RESULT = ht.TNone
1428 class OpInstanceShutdown(OpCode):
1429 """Shutdown an instance."""
1430 OP_DSC_FIELD = "instance_name"
1434 _PIgnoreOfflineNodes,
1435 ("timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT, ht.TNonNegativeInt,
1436 "How long to wait for instance to shut down"),
1439 OP_RESULT = ht.TNone
1442 class OpInstanceReboot(OpCode):
1443 """Reboot an instance."""
1444 OP_DSC_FIELD = "instance_name"
1448 ("ignore_secondaries", False, ht.TBool,
1449 "Whether to start the instance even if secondary disks are failing"),
1450 ("reboot_type", ht.NoDefault, ht.TElemOf(constants.REBOOT_TYPES),
1451 "How to reboot instance"),
1453 OP_RESULT = ht.TNone
1456 class OpInstanceReplaceDisks(OpCode):
1457 """Replace the disks of an instance."""
1458 OP_DSC_FIELD = "instance_name"
1463 ("mode", ht.NoDefault, ht.TElemOf(constants.REPLACE_MODES),
1464 "Replacement mode"),
1465 ("disks", ht.EmptyList, ht.TListOf(ht.TNonNegativeInt),
1467 ("remote_node", None, ht.TMaybeString, "New secondary node"),
1468 _PIAllocFromDesc("Iallocator for deciding new secondary node"),
1470 OP_RESULT = ht.TNone
1473 class OpInstanceFailover(OpCode):
1474 """Failover an instance."""
1475 OP_DSC_FIELD = "instance_name"
1479 _PIgnoreConsistency,
1480 _PMigrationTargetNode,
1482 _PIAllocFromDesc("Iallocator for deciding the target node for"
1483 " shared-storage instances"),
1485 OP_RESULT = ht.TNone
1488 class OpInstanceMigrate(OpCode):
1489 """Migrate an instance.
1491 This migrates (without shutting down an instance) to its secondary
1494 @ivar instance_name: the name of the instance
1495 @ivar mode: the migration mode (live, non-live or None for auto)
1498 OP_DSC_FIELD = "instance_name"
1503 _PMigrationTargetNode,
1506 ("cleanup", False, ht.TBool,
1507 "Whether a previously failed migration should be cleaned up"),
1508 _PIAllocFromDesc("Iallocator for deciding the target node for"
1509 " shared-storage instances"),
1510 ("allow_failover", False, ht.TBool,
1511 "Whether we can fallback to failover if migration is not possible"),
1513 OP_RESULT = ht.TNone
1516 class OpInstanceMove(OpCode):
1517 """Move an instance.
1519 This move (with shutting down an instance and data copying) to an
1522 @ivar instance_name: the name of the instance
1523 @ivar target_node: the destination node
1526 OP_DSC_FIELD = "instance_name"
1531 ("target_node", ht.NoDefault, ht.TNonEmptyString, "Target node"),
1532 _PIgnoreConsistency,
1534 OP_RESULT = ht.TNone
1537 class OpInstanceConsole(OpCode):
1538 """Connect to an instance's console."""
1539 OP_DSC_FIELD = "instance_name"
1543 OP_RESULT = ht.TDict
1546 class OpInstanceActivateDisks(OpCode):
1547 """Activate an instance's disks."""
1548 OP_DSC_FIELD = "instance_name"
1551 ("ignore_size", False, ht.TBool, "Whether to ignore recorded size"),
1554 OP_RESULT = ht.TListOf(ht.TAnd(ht.TIsLength(3),
1555 ht.TItems([ht.TNonEmptyString,
1557 ht.TNonEmptyString])))
1560 class OpInstanceDeactivateDisks(OpCode):
1561 """Deactivate an instance's disks."""
1562 OP_DSC_FIELD = "instance_name"
1567 OP_RESULT = ht.TNone
1570 class OpInstanceRecreateDisks(OpCode):
1571 """Recreate an instance's disks."""
1573 ht.TAnd(ht.TIsLength(2),
1574 ht.TItems([ht.Comment("Disk index")(ht.TNonNegativeInt),
1575 ht.Comment("Parameters")(_TDiskParams)]))
1577 OP_DSC_FIELD = "instance_name"
1580 ("disks", ht.EmptyList,
1581 ht.TOr(ht.TListOf(ht.TNonNegativeInt), ht.TListOf(_TDiskChanges)),
1582 "List of disk indexes (deprecated) or a list of tuples containing a disk"
1583 " index and a possibly empty dictionary with disk parameter changes"),
1584 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1585 "New instance nodes, if relocation is desired"),
1586 _PIAllocFromDesc("Iallocator for deciding new nodes"),
1588 OP_RESULT = ht.TNone
1591 class OpInstanceQuery(OpCode):
1592 """Compute the list of instances."""
1596 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1597 "Empty list to query all instances, instance names otherwise"),
1599 OP_RESULT = _TOldQueryResult
1602 class OpInstanceQueryData(OpCode):
1603 """Compute the run-time status of instances."""
1606 ("instances", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1608 ("static", False, ht.TBool,
1609 "Whether to only return configuration data without querying"
1612 OP_RESULT = ht.TDictOf(ht.TNonEmptyString, ht.TDict)
1615 def _TestInstSetParamsModList(fn):
1616 """Generates a check for modification lists.
1620 # TODO: Remove in version 2.8 including support in LUInstanceSetParams
1622 ht.TAnd(ht.TIsLength(2), ht.TItems([
1623 ht.TOr(ht.TElemOf(constants.DDMS_VALUES), ht.TNonNegativeInt),
1627 # New format, supporting adding/removing disks/NICs at arbitrary indices
1629 ht.TAnd(ht.TIsLength(3), ht.TItems([
1630 ht.TElemOf(constants.DDMS_VALUES_WITH_MODIFY),
1631 ht.Comment("Disk index, can be negative, e.g. -1 for last disk")(ht.TInt),
1635 return ht.TOr(ht.Comment("Recommended")(ht.TListOf(mod_item_fn)),
1636 ht.Comment("Deprecated")(ht.TListOf(old_mod_item_fn)))
1639 class OpInstanceSetParams(OpCode):
1640 """Change the parameters of an instance.
1643 TestNicModifications = _TestInstSetParamsModList(_TestNicDef)
1644 TestDiskModifications = _TestInstSetParamsModList(_TDiskParams)
1646 OP_DSC_FIELD = "instance_name"
1652 ("nics", ht.EmptyList, TestNicModifications,
1653 "List of NIC changes: each item is of the form ``(op, index, settings)``,"
1654 " ``op`` is one of ``%s``, ``%s`` or ``%s``, ``index`` can be either -1"
1655 " to refer to the last position, or a zero-based index number; a"
1656 " deprecated version of this parameter used the form ``(op, settings)``,"
1657 " where ``op`` can be ``%s`` to add a new NIC with the specified"
1658 " settings, ``%s`` to remove the last NIC or a number to modify the"
1659 " settings of the NIC with that index" %
1660 (constants.DDM_ADD, constants.DDM_MODIFY, constants.DDM_REMOVE,
1661 constants.DDM_ADD, constants.DDM_REMOVE)),
1662 ("disks", ht.EmptyList, TestDiskModifications,
1663 "List of disk changes; see ``nics``"),
1664 ("beparams", ht.EmptyDict, ht.TDict, "Per-instance backend parameters"),
1665 ("runtime_mem", None, ht.TMaybePositiveInt, "New runtime memory"),
1666 ("hvparams", ht.EmptyDict, ht.TDict,
1667 "Per-instance hypervisor parameters, hypervisor-dependent"),
1668 ("disk_template", None, ht.TMaybe(_BuildDiskTemplateCheck(False)),
1669 "Disk template for instance"),
1670 ("remote_node", None, ht.TMaybeString,
1671 "Secondary node (used when changing disk template)"),
1672 ("os_name", None, ht.TMaybeString,
1673 "Change the instance's OS without reinstalling the instance"),
1674 ("osparams", None, ht.TMaybeDict, "Per-instance OS parameters"),
1675 ("wait_for_sync", True, ht.TBool,
1676 "Whether to wait for the disk to synchronize, when changing template"),
1677 ("offline", None, ht.TMaybeBool, "Whether to mark instance as offline"),
1678 ("conflicts_check", True, ht.TBool, "Check for conflicting IPs"),
1680 OP_RESULT = _TSetParamsResult
1683 class OpInstanceGrowDisk(OpCode):
1684 """Grow a disk of an instance."""
1685 OP_DSC_FIELD = "instance_name"
1689 ("disk", ht.NoDefault, ht.TInt, "Disk index"),
1690 ("amount", ht.NoDefault, ht.TNonNegativeInt,
1691 "Amount of disk space to add (megabytes)"),
1692 ("absolute", False, ht.TBool,
1693 "Whether the amount parameter is an absolute target or a relative one"),
1695 OP_RESULT = ht.TNone
1698 class OpInstanceChangeGroup(OpCode):
1699 """Moves an instance to another node group."""
1700 OP_DSC_FIELD = "instance_name"
1704 _PIAllocFromDesc("Iallocator for computing solution"),
1705 ("target_groups", None, ht.TMaybeListOf(ht.TNonEmptyString),
1706 "Destination group names or UUIDs (defaults to \"all but current group\""),
1708 OP_RESULT = TJobIdListOnly
1711 # Node group opcodes
1713 class OpGroupAdd(OpCode):
1714 """Add a node group to the cluster."""
1715 OP_DSC_FIELD = "group_name"
1718 _PNodeGroupAllocPolicy,
1723 ("ipolicy", None, ht.TMaybeDict,
1724 "Group-wide :ref:`instance policy <rapi-ipolicy>` specs"),
1726 OP_RESULT = ht.TNone
1729 class OpGroupAssignNodes(OpCode):
1730 """Assign nodes to a node group."""
1731 OP_DSC_FIELD = "group_name"
1735 ("nodes", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
1736 "List of nodes to assign"),
1738 OP_RESULT = ht.TNone
1741 class OpGroupQuery(OpCode):
1742 """Compute the list of node groups."""
1745 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1746 "Empty list to query all groups, group names otherwise"),
1748 OP_RESULT = _TOldQueryResult
1751 class OpGroupSetParams(OpCode):
1752 """Change the parameters of a node group."""
1753 OP_DSC_FIELD = "group_name"
1756 _PNodeGroupAllocPolicy,
1761 ("ipolicy", None, ht.TMaybeDict, "Group-wide instance policy specs"),
1763 OP_RESULT = _TSetParamsResult
1766 class OpGroupRemove(OpCode):
1767 """Remove a node group from the cluster."""
1768 OP_DSC_FIELD = "group_name"
1772 OP_RESULT = ht.TNone
1775 class OpGroupRename(OpCode):
1776 """Rename a node group in the cluster."""
1779 ("new_name", ht.NoDefault, ht.TNonEmptyString, "New group name"),
1781 OP_RESULT = ht.Comment("New group name")(ht.TNonEmptyString)
1784 class OpGroupEvacuate(OpCode):
1785 """Evacuate a node group in the cluster."""
1786 OP_DSC_FIELD = "group_name"
1790 _PIAllocFromDesc("Iallocator for computing solution"),
1791 ("target_groups", None, ht.TMaybeListOf(ht.TNonEmptyString),
1792 "Destination group names or UUIDs"),
1794 OP_RESULT = TJobIdListOnly
1798 class OpOsDiagnose(OpCode):
1799 """Compute the list of guest operating systems."""
1802 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1803 "Which operating systems to diagnose"),
1805 OP_RESULT = _TOldQueryResult
1809 class OpBackupQuery(OpCode):
1810 """Compute the list of exported images."""
1813 ("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
1814 "Empty list to query all nodes, node names otherwise"),
1816 OP_RESULT = ht.TDictOf(ht.TNonEmptyString,
1817 ht.TOr(ht.Comment("False on error")(ht.TBool),
1818 ht.TListOf(ht.TNonEmptyString)))
1821 class OpBackupPrepare(OpCode):
1822 """Prepares an instance export.
1824 @ivar instance_name: Instance name
1825 @ivar mode: Export mode (one of L{constants.EXPORT_MODES})
1828 OP_DSC_FIELD = "instance_name"
1831 ("mode", ht.NoDefault, ht.TElemOf(constants.EXPORT_MODES),
1834 OP_RESULT = ht.TMaybeDict
1837 class OpBackupExport(OpCode):
1838 """Export an instance.
1840 For local exports, the export destination is the node name. For
1841 remote exports, the export destination is a list of tuples, each
1842 consisting of hostname/IP address, port, magic, HMAC and HMAC
1843 salt. The HMAC is calculated using the cluster domain secret over
1844 the value "${index}:${hostname}:${port}". The destination X509 CA
1845 must be a signed certificate.
1847 @ivar mode: Export mode (one of L{constants.EXPORT_MODES})
1848 @ivar target_node: Export destination
1849 @ivar x509_key_name: X509 key to use (remote export only)
1850 @ivar destination_x509_ca: Destination X509 CA in PEM format (remote export
1854 OP_DSC_FIELD = "instance_name"
1858 # TODO: Rename target_node as it changes meaning for different export modes
1859 # (e.g. "destination")
1860 ("target_node", ht.NoDefault, ht.TOr(ht.TNonEmptyString, ht.TList),
1861 "Destination information, depends on export mode"),
1862 ("shutdown", True, ht.TBool, "Whether to shutdown instance before export"),
1863 ("remove_instance", False, ht.TBool,
1864 "Whether to remove instance after export"),
1865 ("ignore_remove_failures", False, ht.TBool,
1866 "Whether to ignore failures while removing instances"),
1867 ("mode", constants.EXPORT_MODE_LOCAL, ht.TElemOf(constants.EXPORT_MODES),
1869 ("x509_key_name", None, ht.TMaybe(ht.TList),
1870 "Name of X509 key (remote export only)"),
1871 ("destination_x509_ca", None, ht.TMaybeString,
1872 "Destination X509 CA (remote export only)"),
1875 ht.TAnd(ht.TIsLength(2), ht.TItems([
1876 ht.Comment("Finalizing status")(ht.TBool),
1877 ht.Comment("Status for every exported disk")(ht.TListOf(ht.TBool)),
1881 class OpBackupRemove(OpCode):
1882 """Remove an instance's export."""
1883 OP_DSC_FIELD = "instance_name"
1887 OP_RESULT = ht.TNone
1891 class OpTagsGet(OpCode):
1892 """Returns the tags of the given object."""
1893 OP_DSC_FIELD = "name"
1896 # Not using _PUseLocking as the default is different for historical reasons
1897 ("use_locking", True, ht.TBool, "Whether to use synchronization"),
1898 # Name is only meaningful for nodes and instances
1899 ("name", ht.NoDefault, ht.TMaybeString,
1900 "Name of object to retrieve tags from"),
1902 OP_RESULT = ht.TListOf(ht.TNonEmptyString)
1905 class OpTagsSearch(OpCode):
1906 """Searches the tags in the cluster for a given pattern."""
1907 OP_DSC_FIELD = "pattern"
1909 ("pattern", ht.NoDefault, ht.TNonEmptyString,
1910 "Search pattern (regular expression)"),
1912 OP_RESULT = ht.TListOf(ht.TAnd(ht.TIsLength(2), ht.TItems([
1918 class OpTagsSet(OpCode):
1919 """Add a list of tags on a given object."""
1923 # Name is only meaningful for groups, nodes and instances
1924 ("name", ht.NoDefault, ht.TMaybeString,
1925 "Name of object where tag(s) should be added"),
1927 OP_RESULT = ht.TNone
1930 class OpTagsDel(OpCode):
1931 """Remove a list of tags from a given object."""
1935 # Name is only meaningful for groups, nodes and instances
1936 ("name", ht.NoDefault, ht.TMaybeString,
1937 "Name of object where tag(s) should be deleted"),
1939 OP_RESULT = ht.TNone
1943 class OpTestDelay(OpCode):
1944 """Sleeps for a configured amount of time.
1946 This is used just for debugging and testing.
1949 - duration: the time to sleep
1950 - on_master: if true, sleep on the master
1951 - on_nodes: list of nodes in which to sleep
1953 If the on_master parameter is true, it will execute a sleep on the
1954 master (before any node sleep).
1956 If the on_nodes list is not empty, it will sleep on those nodes
1957 (after the sleep on the master, if that is enabled).
1959 As an additional feature, the case of duration < 0 will be reported
1960 as an execution error, so this opcode can be used as a failure
1961 generator. The case of duration == 0 will not be treated specially.
1964 OP_DSC_FIELD = "duration"
1966 ("duration", ht.NoDefault, ht.TNumber, None),
1967 ("on_master", True, ht.TBool, None),
1968 ("on_nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None),
1969 ("repeat", 0, ht.TNonNegativeInt, None),
1972 def OP_DSC_FORMATTER(self, value): # pylint: disable=C0103,R0201
1973 """Custom formatter for duration.
1983 class OpTestAllocator(OpCode):
1984 """Allocator framework testing.
1986 This opcode has two modes:
1987 - gather and return allocator input for a given mode (allocate new
1988 or replace secondary) and a given instance definition (direction
1990 - run a selected allocator for a given operation (as above) and
1991 return the allocator output (direction 'out')
1994 OP_DSC_FIELD = "iallocator"
1996 ("direction", ht.NoDefault,
1997 ht.TElemOf(constants.VALID_IALLOCATOR_DIRECTIONS), None),
1998 ("mode", ht.NoDefault, ht.TElemOf(constants.VALID_IALLOCATOR_MODES), None),
1999 ("name", ht.NoDefault, ht.TNonEmptyString, None),
2000 ("nics", ht.NoDefault,
2001 ht.TMaybeListOf(ht.TDictOf(ht.TElemOf([constants.INIC_MAC,
2006 ("disks", ht.NoDefault, ht.TMaybe(ht.TList), None),
2007 ("hypervisor", None, ht.TMaybeString, None),
2008 _PIAllocFromDesc(None),
2009 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None),
2010 ("memory", None, ht.TMaybe(ht.TNonNegativeInt), None),
2011 ("vcpus", None, ht.TMaybe(ht.TNonNegativeInt), None),
2012 ("os", None, ht.TMaybeString, None),
2013 ("disk_template", None, ht.TMaybeString, None),
2014 ("instances", None, ht.TMaybeListOf(ht.TNonEmptyString), None),
2016 ht.TMaybe(ht.TElemOf(constants.IALLOCATOR_NEVAC_MODES)), None),
2017 ("target_groups", None, ht.TMaybeListOf(ht.TNonEmptyString), None),
2018 ("spindle_use", 1, ht.TNonNegativeInt, None),
2019 ("count", 1, ht.TNonNegativeInt, None),
2023 class OpTestJqueue(OpCode):
2024 """Utility opcode to test some aspects of the job queue.
2028 ("notify_waitlock", False, ht.TBool, None),
2029 ("notify_exec", False, ht.TBool, None),
2030 ("log_messages", ht.EmptyList, ht.TListOf(ht.TString), None),
2031 ("fail", False, ht.TBool, None),
2035 class OpTestDummy(OpCode):
2036 """Utility opcode used by unittests.
2040 ("result", ht.NoDefault, ht.NoType, None),
2041 ("messages", ht.NoDefault, ht.NoType, None),
2042 ("fail", ht.NoDefault, ht.NoType, None),
2043 ("submit_jobs", None, ht.NoType, None),
2049 # Add a new network in the cluster
2050 class OpNetworkAdd(OpCode):
2051 """Add an IP network to the cluster."""
2052 OP_DSC_FIELD = "network_name"
2055 ("network_type", None, ht.TMaybe(_CheckNetworkType), "Network type"),
2056 ("network", ht.NoDefault, _TIpNetwork4, "IPv4 subnet"),
2057 ("gateway", None, ht.TMaybe(_TIpAddress4), "IPv4 gateway"),
2058 ("network6", None, ht.TMaybe(_TIpNetwork6), "IPv6 subnet"),
2059 ("gateway6", None, ht.TMaybe(_TIpAddress6), "IPv6 gateway"),
2060 ("mac_prefix", None, ht.TMaybeString,
2061 "MAC address prefix that overrides cluster one"),
2062 ("add_reserved_ips", None, _TMaybeAddr4List,
2063 "Which IP addresses to reserve"),
2064 ("conflicts_check", True, ht.TBool,
2065 "Whether to check for conflicting IP addresses"),
2066 ("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "Network tags"),
2068 OP_RESULT = ht.TNone
2071 class OpNetworkRemove(OpCode):
2072 """Remove an existing network from the cluster.
2073 Must not be connected to any nodegroup.
2076 OP_DSC_FIELD = "network_name"
2081 OP_RESULT = ht.TNone
2084 class OpNetworkSetParams(OpCode):
2085 """Modify Network's parameters except for IPv4 subnet"""
2086 OP_DSC_FIELD = "network_name"
2089 ("network_type", None, ht.TMaybeValueNone(_CheckNetworkType),
2091 ("gateway", None, ht.TMaybeValueNone(_TIpAddress4), "IPv4 gateway"),
2092 ("network6", None, ht.TMaybeValueNone(_TIpNetwork6), "IPv6 subnet"),
2093 ("gateway6", None, ht.TMaybeValueNone(_TIpAddress6), "IPv6 gateway"),
2094 ("mac_prefix", None, ht.TMaybeValueNone(ht.TString),
2095 "MAC address prefix that overrides cluster one"),
2096 ("add_reserved_ips", None, _TMaybeAddr4List,
2097 "Which external IP addresses to reserve"),
2098 ("remove_reserved_ips", None, _TMaybeAddr4List,
2099 "Which external IP addresses to release"),
2101 OP_RESULT = ht.TNone
2104 class OpNetworkConnect(OpCode):
2105 """Connect a Network to a specific Nodegroup with the defined netparams
2106 (mode, link). Nics in this Network will inherit those params.
2107 Produce errors if a NIC (that its not already assigned to a network)
2108 has an IP that is contained in the Network this will produce error unless
2109 --no-conflicts-check is passed.
2112 OP_DSC_FIELD = "network_name"
2116 ("network_mode", ht.NoDefault, ht.TString, "Connectivity mode"),
2117 ("network_link", ht.NoDefault, ht.TString, "Connectivity link"),
2118 ("conflicts_check", True, ht.TBool, "Whether to check for conflicting IPs"),
2120 OP_RESULT = ht.TNone
2123 class OpNetworkDisconnect(OpCode):
2124 """Disconnect a Network from a Nodegroup. Produce errors if NICs are
2125 present in the Network unless --no-conficts-check option is passed.
2128 OP_DSC_FIELD = "network_name"
2132 ("conflicts_check", True, ht.TBool, "Whether to check for conflicting IPs"),
2134 OP_RESULT = ht.TNone
2137 class OpNetworkQuery(OpCode):
2138 """Compute the list of networks."""
2141 ("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
2142 "Empty list to query all groups, group names otherwise"),
2144 OP_RESULT = _TOldQueryResult
2148 """Returns list of all defined opcodes.
2150 Does not eliminate duplicates by C{OP_ID}.
2153 return [v for v in globals().values()
2154 if (isinstance(v, type) and issubclass(v, OpCode) and
2155 hasattr(v, "OP_ID") and v is not OpCode)]
2158 OP_MAPPING = dict((v.OP_ID, v) for v in _GetOpList())