root / lib / opcodes.py @ 5a8648eb
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#
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# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""OpCodes module
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This module implements the data structures which define the cluster
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operations - the so-called opcodes.
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Every operation which modifies the cluster state is expressed via
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opcodes.
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"""
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# this are practically structures, so disable the message about too
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# few public methods:
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# pylint: disable=R0903
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import logging |
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import re |
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from ganeti import compat |
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from ganeti import constants |
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from ganeti import errors |
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from ganeti import ht |
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# Common opcode attributes
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#: output fields for a query operation
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_POutputFields = ("output_fields", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
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"Selected output fields")
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#: the shutdown timeout
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_PShutdownTimeout = \ |
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("shutdown_timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT, ht.TPositiveInt,
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"How long to wait for instance to shut down")
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#: the force parameter
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_PForce = ("force", False, ht.TBool, "Whether to force the operation") |
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#: a required instance name (for single-instance LUs)
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_PInstanceName = ("instance_name", ht.NoDefault, ht.TNonEmptyString,
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"Instance name")
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#: Whether to ignore offline nodes
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_PIgnoreOfflineNodes = ("ignore_offline_nodes", False, ht.TBool, |
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"Whether to ignore offline nodes")
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#: a required node name (for single-node LUs)
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_PNodeName = ("node_name", ht.NoDefault, ht.TNonEmptyString, "Node name") |
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#: a required node group name (for single-group LUs)
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_PGroupName = ("group_name", ht.NoDefault, ht.TNonEmptyString, "Group name") |
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#: Migration type (live/non-live)
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_PMigrationMode = ("mode", None, |
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ht.TOr(ht.TNone, ht.TElemOf(constants.HT_MIGRATION_MODES)), |
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"Migration mode")
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#: Obsolete 'live' migration mode (boolean)
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_PMigrationLive = ("live", None, ht.TMaybeBool, |
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"Legacy setting for live migration, do not use")
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#: Tag type
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_PTagKind = ("kind", ht.NoDefault, ht.TElemOf(constants.VALID_TAG_TYPES), None) |
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#: List of tag strings
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_PTags = ("tags", ht.NoDefault, ht.TListOf(ht.TNonEmptyString), None) |
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_PForceVariant = ("force_variant", False, ht.TBool, |
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"Whether to force an unknown OS variant")
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_PWaitForSync = ("wait_for_sync", True, ht.TBool, |
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"Whether to wait for the disk to synchronize")
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_PIgnoreConsistency = ("ignore_consistency", False, ht.TBool, |
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"Whether to ignore disk consistency")
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_PStorageName = ("name", ht.NoDefault, ht.TMaybeString, "Storage name") |
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_PUseLocking = ("use_locking", False, ht.TBool, |
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"Whether to use synchronization")
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_PNameCheck = ("name_check", True, ht.TBool, "Whether to check name") |
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_PNodeGroupAllocPolicy = \ |
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("alloc_policy", None, |
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ht.TOr(ht.TNone, ht.TElemOf(constants.VALID_ALLOC_POLICIES)), |
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"Instance allocation policy")
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_PGroupNodeParams = ("ndparams", None, ht.TMaybeDict, |
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"Default node parameters for group")
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_PQueryWhat = ("what", ht.NoDefault, ht.TElemOf(constants.QR_VIA_OP),
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"Resource(s) to query for")
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_PEarlyRelease = ("early_release", False, ht.TBool, |
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"Whether to release locks as soon as possible")
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_PIpCheckDoc = "Whether to ensure instance's IP address is inactive"
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#: Do not remember instance state changes
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_PNoRemember = ("no_remember", False, ht.TBool, |
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"Do not remember the state change")
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#: Target node for instance migration/failover
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_PMigrationTargetNode = ("target_node", None, ht.TMaybeString, |
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"Target node for shared-storage instances")
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_PStartupPaused = ("startup_paused", False, ht.TBool, |
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"Pause instance at startup")
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_PVerbose = ("verbose", False, ht.TBool, "Verbose mode") |
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# Parameters for cluster verification
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_PDebugSimulateErrors = ("debug_simulate_errors", False, ht.TBool, |
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"Whether to simulate errors (useful for debugging)")
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_PErrorCodes = ("error_codes", False, ht.TBool, "Error codes") |
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_PSkipChecks = ("skip_checks", ht.EmptyList,
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ht.TListOf(ht.TElemOf(constants.VERIFY_OPTIONAL_CHECKS)), |
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"Which checks to skip")
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#: OP_ID conversion regular expression
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_OPID_RE = re.compile("([a-z])([A-Z])")
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#: Utility function for L{OpClusterSetParams}
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_TestClusterOsList = ht.TOr(ht.TNone, |
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ht.TListOf(ht.TAnd(ht.TList, ht.TIsLength(2),
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ht.TMap(ht.WithDesc("GetFirstItem")(compat.fst),
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ht.TElemOf(constants.DDMS_VALUES))))) |
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# TODO: Generate check from constants.INIC_PARAMS_TYPES
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#: Utility function for testing NIC definitions
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_TestNicDef = ht.TDictOf(ht.TElemOf(constants.INIC_PARAMS), |
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ht.TOr(ht.TNone, ht.TNonEmptyString)) |
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_TSetParamsResultItemItems = [ |
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ht.Comment("name of changed parameter")(ht.TNonEmptyString),
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ht.TAny, |
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] |
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_TSetParamsResult = \ |
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ht.TListOf(ht.TAnd(ht.TIsLength(len(_TSetParamsResultItemItems)),
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ht.TItems(_TSetParamsResultItemItems))) |
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_SUMMARY_PREFIX = { |
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"CLUSTER_": "C_", |
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"GROUP_": "G_", |
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"NODE_": "N_", |
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"INSTANCE_": "I_", |
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} |
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#: Attribute name for dependencies
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DEPEND_ATTR = "depends"
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#: Attribute name for comment
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COMMENT_ATTR = "comment"
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def _NameToId(name): |
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"""Convert an opcode class name to an OP_ID.
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@type name: string
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@param name: the class name, as OpXxxYyy
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@rtype: string
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@return: the name in the OP_XXXX_YYYY format
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"""
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if not name.startswith("Op"): |
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return None |
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# Note: (?<=[a-z])(?=[A-Z]) would be ideal, since it wouldn't
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# consume any input, and hence we would just have all the elements
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# in the list, one by one; but it seems that split doesn't work on
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# non-consuming input, hence we have to process the input string a
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# bit
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name = _OPID_RE.sub(r"\1,\2", name)
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elems = name.split(",")
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return "_".join(n.upper() for n in elems) |
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def RequireFileStorage(): |
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"""Checks that file storage is enabled.
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While it doesn't really fit into this module, L{utils} was deemed too large
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of a dependency to be imported for just one or two functions.
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@raise errors.OpPrereqError: when file storage is disabled
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"""
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if not constants.ENABLE_FILE_STORAGE: |
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raise errors.OpPrereqError("File storage disabled at configure time", |
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errors.ECODE_INVAL) |
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def RequireSharedFileStorage(): |
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"""Checks that shared file storage is enabled.
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While it doesn't really fit into this module, L{utils} was deemed too large
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of a dependency to be imported for just one or two functions.
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@raise errors.OpPrereqError: when shared file storage is disabled
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"""
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if not constants.ENABLE_SHARED_FILE_STORAGE: |
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raise errors.OpPrereqError("Shared file storage disabled at" |
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" configure time", errors.ECODE_INVAL)
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@ht.WithDesc("CheckFileStorage") |
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def _CheckFileStorage(value): |
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"""Ensures file storage is enabled if used.
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"""
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if value == constants.DT_FILE:
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RequireFileStorage() |
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elif value == constants.DT_SHARED_FILE:
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RequireSharedFileStorage() |
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return True |
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def _BuildDiskTemplateCheck(accept_none): |
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"""Builds check for disk template.
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@type accept_none: bool
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@param accept_none: whether to accept None as a correct value
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@rtype: callable
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"""
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template_check = ht.TElemOf(constants.DISK_TEMPLATES) |
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if accept_none:
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template_check = ht.TOr(template_check, ht.TNone) |
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return ht.TAnd(template_check, _CheckFileStorage)
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def _CheckStorageType(storage_type): |
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"""Ensure a given storage type is valid.
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"""
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if storage_type not in constants.VALID_STORAGE_TYPES: |
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raise errors.OpPrereqError("Unknown storage type: %s" % storage_type, |
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errors.ECODE_INVAL) |
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if storage_type == constants.ST_FILE:
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RequireFileStorage() |
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return True |
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#: Storage type parameter
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_PStorageType = ("storage_type", ht.NoDefault, _CheckStorageType,
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"Storage type")
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class _AutoOpParamSlots(type): |
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"""Meta class for opcode definitions.
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"""
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def __new__(mcs, name, bases, attrs): |
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"""Called when a class should be created.
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@param mcs: The meta class
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@param name: Name of created class
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@param bases: Base classes
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@type attrs: dict
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@param attrs: Class attributes
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"""
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assert "__slots__" not in attrs, \ |
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"Class '%s' defines __slots__ when it should use OP_PARAMS" % name
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assert "OP_ID" not in attrs, "Class '%s' defining OP_ID" % name |
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attrs["OP_ID"] = _NameToId(name)
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# Always set OP_PARAMS to avoid duplicates in BaseOpCode.GetAllParams
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params = attrs.setdefault("OP_PARAMS", [])
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# Use parameter names as slots
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slots = [pname for (pname, _, _, _) in params] |
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assert "OP_DSC_FIELD" not in attrs or attrs["OP_DSC_FIELD"] in slots, \ |
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"Class '%s' uses unknown field in OP_DSC_FIELD" % name
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attrs["__slots__"] = slots
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return type.__new__(mcs, name, bases, attrs) |
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class BaseOpCode(object): |
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"""A simple serializable object.
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This object serves as a parent class for OpCode without any custom
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field handling.
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"""
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# pylint: disable=E1101
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# as OP_ID is dynamically defined
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__metaclass__ = _AutoOpParamSlots |
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def __init__(self, **kwargs): |
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"""Constructor for BaseOpCode.
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The constructor takes only keyword arguments and will set
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attributes on this object based on the passed arguments. As such,
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it means that you should not pass arguments which are not in the
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__slots__ attribute for this class.
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"""
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slots = self._all_slots()
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for key in kwargs: |
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if key not in slots: |
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raise TypeError("Object %s doesn't support the parameter '%s'" % |
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(self.__class__.__name__, key))
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setattr(self, key, kwargs[key]) |
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def __getstate__(self): |
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"""Generic serializer.
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This method just returns the contents of the instance as a
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dictionary.
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@rtype: C{dict}
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@return: the instance attributes and their values
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"""
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state = {} |
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for name in self._all_slots(): |
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if hasattr(self, name): |
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state[name] = getattr(self, name) |
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return state
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def __setstate__(self, state): |
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"""Generic unserializer.
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This method just restores from the serialized state the attributes
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of the current instance.
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@param state: the serialized opcode data
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@type state: C{dict}
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"""
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if not isinstance(state, dict): |
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raise ValueError("Invalid data to __setstate__: expected dict, got %s" % |
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type(state))
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for name in self._all_slots(): |
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if name not in state and hasattr(self, name): |
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delattr(self, name) |
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for name in state: |
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setattr(self, name, state[name]) |
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@classmethod
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def _all_slots(cls): |
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"""Compute the list of all declared slots for a class.
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"""
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slots = [] |
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for parent in cls.__mro__: |
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slots.extend(getattr(parent, "__slots__", [])) |
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return slots
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@classmethod
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def GetAllParams(cls): |
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"""Compute list of all parameters for an opcode.
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"""
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slots = [] |
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for parent in cls.__mro__: |
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slots.extend(getattr(parent, "OP_PARAMS", [])) |
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return slots
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def Validate(self, set_defaults): |
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"""Validate opcode parameters, optionally setting default values.
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@type set_defaults: bool
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@param set_defaults: Whether to set default values
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@raise errors.OpPrereqError: When a parameter value doesn't match
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requirements
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"""
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for (attr_name, default, test, _) in self.GetAllParams(): |
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assert test == ht.NoType or callable(test) |
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if not hasattr(self, attr_name): |
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if default == ht.NoDefault:
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raise errors.OpPrereqError("Required parameter '%s.%s' missing" % |
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(self.OP_ID, attr_name),
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errors.ECODE_INVAL) |
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elif set_defaults:
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if callable(default): |
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dval = default() |
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else:
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dval = default |
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setattr(self, attr_name, dval) |
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if test == ht.NoType:
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# no tests here
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continue
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if set_defaults or hasattr(self, attr_name): |
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attr_val = getattr(self, attr_name) |
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if not test(attr_val): |
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logging.error("OpCode %s, parameter %s, has invalid type %s/value %s",
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self.OP_ID, attr_name, type(attr_val), attr_val) |
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raise errors.OpPrereqError("Parameter '%s.%s' fails validation" % |
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(self.OP_ID, attr_name),
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errors.ECODE_INVAL) |
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def _BuildJobDepCheck(relative): |
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"""Builds check for job dependencies (L{DEPEND_ATTR}).
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@type relative: bool
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@param relative: Whether to accept relative job IDs (negative)
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@rtype: callable
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"""
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if relative:
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job_id = ht.TOr(ht.TJobId, ht.TRelativeJobId) |
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else:
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job_id = ht.TJobId |
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job_dep = \ |
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ht.TAnd(ht.TIsLength(2),
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ht.TItems([job_id, |
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ht.TListOf(ht.TElemOf(constants.JOBS_FINALIZED))])) |
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return ht.TOr(ht.TNone, ht.TListOf(job_dep))
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TNoRelativeJobDependencies = _BuildJobDepCheck(False)
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#: List of submission status and job ID as returned by C{SubmitManyJobs}
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_TJobIdListItem = \ |
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ht.TAnd(ht.TIsLength(2),
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ht.TItems([ht.Comment("success")(ht.TBool),
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ht.Comment("Job ID if successful, error message"
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" otherwise")(ht.TOr(ht.TString,
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ht.TJobId))])) |
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TJobIdList = ht.TListOf(_TJobIdListItem) |
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|
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#: Result containing only list of submitted jobs
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TJobIdListOnly = ht.TStrictDict(True, True, { |
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constants.JOB_IDS_KEY: ht.Comment("List of submitted jobs")(TJobIdList),
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}) |
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class OpCode(BaseOpCode): |
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"""Abstract OpCode.
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This is the root of the actual OpCode hierarchy. All clases derived
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from this class should override OP_ID.
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@cvar OP_ID: The ID of this opcode. This should be unique amongst all
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children of this class.
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@cvar OP_DSC_FIELD: The name of a field whose value will be included in the
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string returned by Summary(); see the docstring of that
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method for details).
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@cvar OP_PARAMS: List of opcode attributes, the default values they should
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get if not already defined, and types they must match.
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@cvar OP_RESULT: Callable to verify opcode result
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@cvar WITH_LU: Boolean that specifies whether this should be included in
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mcpu's dispatch table
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@ivar dry_run: Whether the LU should be run in dry-run mode, i.e. just
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the check steps
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@ivar priority: Opcode priority for queue
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"""
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# pylint: disable=E1101
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# as OP_ID is dynamically defined
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WITH_LU = True
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OP_PARAMS = [ |
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("dry_run", None, ht.TMaybeBool, "Run checks only, don't execute"), |
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("debug_level", None, ht.TOr(ht.TNone, ht.TPositiveInt), "Debug level"), |
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("priority", constants.OP_PRIO_DEFAULT,
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ht.TElemOf(constants.OP_PRIO_SUBMIT_VALID), "Opcode priority"),
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(DEPEND_ATTR, None, _BuildJobDepCheck(True), |
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"Job dependencies; if used through ``SubmitManyJobs`` relative (negative)"
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" job IDs can be used"),
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(COMMENT_ATTR, None, ht.TMaybeString,
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"Comment describing the purpose of the opcode"),
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] |
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OP_RESULT = None
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def __getstate__(self): |
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"""Specialized getstate for opcodes.
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This method adds to the state dictionary the OP_ID of the class,
|
508 |
so that on unload we can identify the correct class for
|
509 |
instantiating the opcode.
|
510 |
|
511 |
@rtype: C{dict}
|
512 |
@return: the state as a dictionary
|
513 |
|
514 |
"""
|
515 |
data = BaseOpCode.__getstate__(self)
|
516 |
data["OP_ID"] = self.OP_ID |
517 |
return data
|
518 |
|
519 |
@classmethod
|
520 |
def LoadOpCode(cls, data): |
521 |
"""Generic load opcode method.
|
522 |
|
523 |
The method identifies the correct opcode class from the dict-form
|
524 |
by looking for a OP_ID key, if this is not found, or its value is
|
525 |
not available in this module as a child of this class, we fail.
|
526 |
|
527 |
@type data: C{dict}
|
528 |
@param data: the serialized opcode
|
529 |
|
530 |
"""
|
531 |
if not isinstance(data, dict): |
532 |
raise ValueError("Invalid data to LoadOpCode (%s)" % type(data)) |
533 |
if "OP_ID" not in data: |
534 |
raise ValueError("Invalid data to LoadOpcode, missing OP_ID") |
535 |
op_id = data["OP_ID"]
|
536 |
op_class = None
|
537 |
if op_id in OP_MAPPING: |
538 |
op_class = OP_MAPPING[op_id] |
539 |
else:
|
540 |
raise ValueError("Invalid data to LoadOpCode: OP_ID %s unsupported" % |
541 |
op_id) |
542 |
op = op_class() |
543 |
new_data = data.copy() |
544 |
del new_data["OP_ID"] |
545 |
op.__setstate__(new_data) |
546 |
return op
|
547 |
|
548 |
def Summary(self): |
549 |
"""Generates a summary description of this opcode.
|
550 |
|
551 |
The summary is the value of the OP_ID attribute (without the "OP_"
|
552 |
prefix), plus the value of the OP_DSC_FIELD attribute, if one was
|
553 |
defined; this field should allow to easily identify the operation
|
554 |
(for an instance creation job, e.g., it would be the instance
|
555 |
name).
|
556 |
|
557 |
"""
|
558 |
assert self.OP_ID is not None and len(self.OP_ID) > 3 |
559 |
# all OP_ID start with OP_, we remove that
|
560 |
txt = self.OP_ID[3:] |
561 |
field_name = getattr(self, "OP_DSC_FIELD", None) |
562 |
if field_name:
|
563 |
field_value = getattr(self, field_name, None) |
564 |
if isinstance(field_value, (list, tuple)): |
565 |
field_value = ",".join(str(i) for i in field_value) |
566 |
txt = "%s(%s)" % (txt, field_value)
|
567 |
return txt
|
568 |
|
569 |
def TinySummary(self): |
570 |
"""Generates a compact summary description of the opcode.
|
571 |
|
572 |
"""
|
573 |
assert self.OP_ID.startswith("OP_") |
574 |
|
575 |
text = self.OP_ID[3:] |
576 |
|
577 |
for (prefix, supplement) in _SUMMARY_PREFIX.items(): |
578 |
if text.startswith(prefix):
|
579 |
return supplement + text[len(prefix):] |
580 |
|
581 |
return text
|
582 |
|
583 |
|
584 |
# cluster opcodes
|
585 |
|
586 |
class OpClusterPostInit(OpCode): |
587 |
"""Post cluster initialization.
|
588 |
|
589 |
This opcode does not touch the cluster at all. Its purpose is to run hooks
|
590 |
after the cluster has been initialized.
|
591 |
|
592 |
"""
|
593 |
|
594 |
|
595 |
class OpClusterDestroy(OpCode): |
596 |
"""Destroy the cluster.
|
597 |
|
598 |
This opcode has no other parameters. All the state is irreversibly
|
599 |
lost after the execution of this opcode.
|
600 |
|
601 |
"""
|
602 |
|
603 |
|
604 |
class OpClusterQuery(OpCode): |
605 |
"""Query cluster information."""
|
606 |
|
607 |
|
608 |
class OpClusterVerify(OpCode): |
609 |
"""Submits all jobs necessary to verify the cluster.
|
610 |
|
611 |
"""
|
612 |
OP_PARAMS = [ |
613 |
_PDebugSimulateErrors, |
614 |
_PErrorCodes, |
615 |
_PSkipChecks, |
616 |
_PVerbose, |
617 |
("group_name", None, ht.TMaybeString, "Group to verify") |
618 |
] |
619 |
OP_RESULT = TJobIdListOnly |
620 |
|
621 |
|
622 |
class OpClusterVerifyConfig(OpCode): |
623 |
"""Verify the cluster config.
|
624 |
|
625 |
"""
|
626 |
OP_PARAMS = [ |
627 |
_PDebugSimulateErrors, |
628 |
_PErrorCodes, |
629 |
_PVerbose, |
630 |
] |
631 |
OP_RESULT = ht.TBool |
632 |
|
633 |
|
634 |
class OpClusterVerifyGroup(OpCode): |
635 |
"""Run verify on a node group from the cluster.
|
636 |
|
637 |
@type skip_checks: C{list}
|
638 |
@ivar skip_checks: steps to be skipped from the verify process; this
|
639 |
needs to be a subset of
|
640 |
L{constants.VERIFY_OPTIONAL_CHECKS}; currently
|
641 |
only L{constants.VERIFY_NPLUSONE_MEM} can be passed
|
642 |
|
643 |
"""
|
644 |
OP_DSC_FIELD = "group_name"
|
645 |
OP_PARAMS = [ |
646 |
_PGroupName, |
647 |
_PDebugSimulateErrors, |
648 |
_PErrorCodes, |
649 |
_PSkipChecks, |
650 |
_PVerbose, |
651 |
] |
652 |
OP_RESULT = ht.TBool |
653 |
|
654 |
|
655 |
class OpClusterVerifyDisks(OpCode): |
656 |
"""Verify the cluster disks.
|
657 |
|
658 |
"""
|
659 |
OP_RESULT = TJobIdListOnly |
660 |
|
661 |
|
662 |
class OpGroupVerifyDisks(OpCode): |
663 |
"""Verifies the status of all disks in a node group.
|
664 |
|
665 |
Result: a tuple of three elements:
|
666 |
- dict of node names with issues (values: error msg)
|
667 |
- list of instances with degraded disks (that should be activated)
|
668 |
- dict of instances with missing logical volumes (values: (node, vol)
|
669 |
pairs with details about the missing volumes)
|
670 |
|
671 |
In normal operation, all lists should be empty. A non-empty instance
|
672 |
list (3rd element of the result) is still ok (errors were fixed) but
|
673 |
non-empty node list means some node is down, and probably there are
|
674 |
unfixable drbd errors.
|
675 |
|
676 |
Note that only instances that are drbd-based are taken into
|
677 |
consideration. This might need to be revisited in the future.
|
678 |
|
679 |
"""
|
680 |
OP_DSC_FIELD = "group_name"
|
681 |
OP_PARAMS = [ |
682 |
_PGroupName, |
683 |
] |
684 |
OP_RESULT = \ |
685 |
ht.TAnd(ht.TIsLength(3),
|
686 |
ht.TItems([ht.TDictOf(ht.TString, ht.TString), |
687 |
ht.TListOf(ht.TString), |
688 |
ht.TDictOf(ht.TString, ht.TListOf(ht.TString))])) |
689 |
|
690 |
|
691 |
class OpClusterRepairDiskSizes(OpCode): |
692 |
"""Verify the disk sizes of the instances and fixes configuration
|
693 |
mimatches.
|
694 |
|
695 |
Parameters: optional instances list, in case we want to restrict the
|
696 |
checks to only a subset of the instances.
|
697 |
|
698 |
Result: a list of tuples, (instance, disk, new-size) for changed
|
699 |
configurations.
|
700 |
|
701 |
In normal operation, the list should be empty.
|
702 |
|
703 |
@type instances: list
|
704 |
@ivar instances: the list of instances to check, or empty for all instances
|
705 |
|
706 |
"""
|
707 |
OP_PARAMS = [ |
708 |
("instances", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None), |
709 |
] |
710 |
|
711 |
|
712 |
class OpClusterConfigQuery(OpCode): |
713 |
"""Query cluster configuration values."""
|
714 |
OP_PARAMS = [ |
715 |
_POutputFields |
716 |
] |
717 |
|
718 |
|
719 |
class OpClusterRename(OpCode): |
720 |
"""Rename the cluster.
|
721 |
|
722 |
@type name: C{str}
|
723 |
@ivar name: The new name of the cluster. The name and/or the master IP
|
724 |
address will be changed to match the new name and its IP
|
725 |
address.
|
726 |
|
727 |
"""
|
728 |
OP_DSC_FIELD = "name"
|
729 |
OP_PARAMS = [ |
730 |
("name", ht.NoDefault, ht.TNonEmptyString, None), |
731 |
] |
732 |
|
733 |
|
734 |
class OpClusterSetParams(OpCode): |
735 |
"""Change the parameters of the cluster.
|
736 |
|
737 |
@type vg_name: C{str} or C{None}
|
738 |
@ivar vg_name: The new volume group name or None to disable LVM usage.
|
739 |
|
740 |
"""
|
741 |
OP_PARAMS = [ |
742 |
("vg_name", None, ht.TMaybeString, "Volume group name"), |
743 |
("enabled_hypervisors", None, |
744 |
ht.TOr(ht.TAnd(ht.TListOf(ht.TElemOf(constants.HYPER_TYPES)), ht.TTrue), |
745 |
ht.TNone), |
746 |
"List of enabled hypervisors"),
|
747 |
("hvparams", None, ht.TOr(ht.TDictOf(ht.TNonEmptyString, ht.TDict), |
748 |
ht.TNone), |
749 |
"Cluster-wide hypervisor parameter defaults, hypervisor-dependent"),
|
750 |
("beparams", None, ht.TOr(ht.TDict, ht.TNone), |
751 |
"Cluster-wide backend parameter defaults"),
|
752 |
("os_hvp", None, ht.TOr(ht.TDictOf(ht.TNonEmptyString, ht.TDict), |
753 |
ht.TNone), |
754 |
"Cluster-wide per-OS hypervisor parameter defaults"),
|
755 |
("osparams", None, ht.TOr(ht.TDictOf(ht.TNonEmptyString, ht.TDict), |
756 |
ht.TNone), |
757 |
"Cluster-wide OS parameter defaults"),
|
758 |
("candidate_pool_size", None, ht.TOr(ht.TStrictPositiveInt, ht.TNone), |
759 |
"Master candidate pool size"),
|
760 |
("uid_pool", None, ht.NoType, |
761 |
"Set UID pool, must be list of lists describing UID ranges (two items,"
|
762 |
" start and end inclusive)"),
|
763 |
("add_uids", None, ht.NoType, |
764 |
"Extend UID pool, must be list of lists describing UID ranges (two"
|
765 |
" items, start and end inclusive) to be added"),
|
766 |
("remove_uids", None, ht.NoType, |
767 |
"Shrink UID pool, must be list of lists describing UID ranges (two"
|
768 |
" items, start and end inclusive) to be removed"),
|
769 |
("maintain_node_health", None, ht.TMaybeBool, |
770 |
"Whether to automatically maintain node health"),
|
771 |
("prealloc_wipe_disks", None, ht.TMaybeBool, |
772 |
"Whether to wipe disks before allocating them to instances"),
|
773 |
("nicparams", None, ht.TMaybeDict, "Cluster-wide NIC parameter defaults"), |
774 |
("ndparams", None, ht.TMaybeDict, "Cluster-wide node parameter defaults"), |
775 |
("drbd_helper", None, ht.TOr(ht.TString, ht.TNone), "DRBD helper program"), |
776 |
("default_iallocator", None, ht.TOr(ht.TString, ht.TNone), |
777 |
"Default iallocator for cluster"),
|
778 |
("master_netdev", None, ht.TOr(ht.TString, ht.TNone), |
779 |
"Master network device"),
|
780 |
("master_netmask", None, ht.TOr(ht.TInt, ht.TNone), |
781 |
"Netmask of the master IP"),
|
782 |
("reserved_lvs", None, ht.TOr(ht.TListOf(ht.TNonEmptyString), ht.TNone), |
783 |
"List of reserved LVs"),
|
784 |
("hidden_os", None, _TestClusterOsList, |
785 |
"Modify list of hidden operating systems. Each modification must have"
|
786 |
" two items, the operation and the OS name. The operation can be"
|
787 |
" ``%s`` or ``%s``." % (constants.DDM_ADD, constants.DDM_REMOVE)),
|
788 |
("blacklisted_os", None, _TestClusterOsList, |
789 |
"Modify list of blacklisted operating systems. Each modification must have"
|
790 |
" two items, the operation and the OS name. The operation can be"
|
791 |
" ``%s`` or ``%s``." % (constants.DDM_ADD, constants.DDM_REMOVE)),
|
792 |
] |
793 |
|
794 |
|
795 |
class OpClusterRedistConf(OpCode): |
796 |
"""Force a full push of the cluster configuration.
|
797 |
|
798 |
"""
|
799 |
|
800 |
|
801 |
class OpClusterActivateMasterIp(OpCode): |
802 |
"""Activate the master IP on the master node.
|
803 |
|
804 |
"""
|
805 |
|
806 |
|
807 |
class OpClusterDeactivateMasterIp(OpCode): |
808 |
"""Deactivate the master IP on the master node.
|
809 |
|
810 |
"""
|
811 |
|
812 |
|
813 |
class OpQuery(OpCode): |
814 |
"""Query for resources/items.
|
815 |
|
816 |
@ivar what: Resources to query for, must be one of L{constants.QR_VIA_OP}
|
817 |
@ivar fields: List of fields to retrieve
|
818 |
@ivar filter: Query filter
|
819 |
|
820 |
"""
|
821 |
OP_DSC_FIELD = "what"
|
822 |
OP_PARAMS = [ |
823 |
_PQueryWhat, |
824 |
_PUseLocking, |
825 |
("fields", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
|
826 |
"Requested fields"),
|
827 |
("filter", None, ht.TOr(ht.TNone, ht.TListOf), |
828 |
"Query filter"),
|
829 |
] |
830 |
|
831 |
|
832 |
class OpQueryFields(OpCode): |
833 |
"""Query for available resource/item fields.
|
834 |
|
835 |
@ivar what: Resources to query for, must be one of L{constants.QR_VIA_OP}
|
836 |
@ivar fields: List of fields to retrieve
|
837 |
|
838 |
"""
|
839 |
OP_DSC_FIELD = "what"
|
840 |
OP_PARAMS = [ |
841 |
_PQueryWhat, |
842 |
("fields", None, ht.TOr(ht.TNone, ht.TListOf(ht.TNonEmptyString)), |
843 |
"Requested fields; if not given, all are returned"),
|
844 |
] |
845 |
|
846 |
|
847 |
class OpOobCommand(OpCode): |
848 |
"""Interact with OOB."""
|
849 |
OP_PARAMS = [ |
850 |
("node_names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
|
851 |
"List of nodes to run the OOB command against"),
|
852 |
("command", None, ht.TElemOf(constants.OOB_COMMANDS), |
853 |
"OOB command to be run"),
|
854 |
("timeout", constants.OOB_TIMEOUT, ht.TInt,
|
855 |
"Timeout before the OOB helper will be terminated"),
|
856 |
("ignore_status", False, ht.TBool, |
857 |
"Ignores the node offline status for power off"),
|
858 |
("power_delay", constants.OOB_POWER_DELAY, ht.TPositiveFloat,
|
859 |
"Time in seconds to wait between powering on nodes"),
|
860 |
] |
861 |
|
862 |
|
863 |
# node opcodes
|
864 |
|
865 |
class OpNodeRemove(OpCode): |
866 |
"""Remove a node.
|
867 |
|
868 |
@type node_name: C{str}
|
869 |
@ivar node_name: The name of the node to remove. If the node still has
|
870 |
instances on it, the operation will fail.
|
871 |
|
872 |
"""
|
873 |
OP_DSC_FIELD = "node_name"
|
874 |
OP_PARAMS = [ |
875 |
_PNodeName, |
876 |
] |
877 |
|
878 |
|
879 |
class OpNodeAdd(OpCode): |
880 |
"""Add a node to the cluster.
|
881 |
|
882 |
@type node_name: C{str}
|
883 |
@ivar node_name: The name of the node to add. This can be a short name,
|
884 |
but it will be expanded to the FQDN.
|
885 |
@type primary_ip: IP address
|
886 |
@ivar primary_ip: The primary IP of the node. This will be ignored when the
|
887 |
opcode is submitted, but will be filled during the node
|
888 |
add (so it will be visible in the job query).
|
889 |
@type secondary_ip: IP address
|
890 |
@ivar secondary_ip: The secondary IP of the node. This needs to be passed
|
891 |
if the cluster has been initialized in 'dual-network'
|
892 |
mode, otherwise it must not be given.
|
893 |
@type readd: C{bool}
|
894 |
@ivar readd: Whether to re-add an existing node to the cluster. If
|
895 |
this is not passed, then the operation will abort if the node
|
896 |
name is already in the cluster; use this parameter to 'repair'
|
897 |
a node that had its configuration broken, or was reinstalled
|
898 |
without removal from the cluster.
|
899 |
@type group: C{str}
|
900 |
@ivar group: The node group to which this node will belong.
|
901 |
@type vm_capable: C{bool}
|
902 |
@ivar vm_capable: The vm_capable node attribute
|
903 |
@type master_capable: C{bool}
|
904 |
@ivar master_capable: The master_capable node attribute
|
905 |
|
906 |
"""
|
907 |
OP_DSC_FIELD = "node_name"
|
908 |
OP_PARAMS = [ |
909 |
_PNodeName, |
910 |
("primary_ip", None, ht.NoType, "Primary IP address"), |
911 |
("secondary_ip", None, ht.TMaybeString, "Secondary IP address"), |
912 |
("readd", False, ht.TBool, "Whether node is re-added to cluster"), |
913 |
("group", None, ht.TMaybeString, "Initial node group"), |
914 |
("master_capable", None, ht.TMaybeBool, |
915 |
"Whether node can become master or master candidate"),
|
916 |
("vm_capable", None, ht.TMaybeBool, |
917 |
"Whether node can host instances"),
|
918 |
("ndparams", None, ht.TMaybeDict, "Node parameters"), |
919 |
] |
920 |
|
921 |
|
922 |
class OpNodeQuery(OpCode): |
923 |
"""Compute the list of nodes."""
|
924 |
OP_PARAMS = [ |
925 |
_POutputFields, |
926 |
_PUseLocking, |
927 |
("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
|
928 |
"Empty list to query all nodes, node names otherwise"),
|
929 |
] |
930 |
|
931 |
|
932 |
class OpNodeQueryvols(OpCode): |
933 |
"""Get list of volumes on node."""
|
934 |
OP_PARAMS = [ |
935 |
_POutputFields, |
936 |
("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
|
937 |
"Empty list to query all nodes, node names otherwise"),
|
938 |
] |
939 |
|
940 |
|
941 |
class OpNodeQueryStorage(OpCode): |
942 |
"""Get information on storage for node(s)."""
|
943 |
OP_PARAMS = [ |
944 |
_POutputFields, |
945 |
_PStorageType, |
946 |
("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "List of nodes"), |
947 |
("name", None, ht.TMaybeString, "Storage name"), |
948 |
] |
949 |
|
950 |
|
951 |
class OpNodeModifyStorage(OpCode): |
952 |
"""Modifies the properies of a storage unit"""
|
953 |
OP_PARAMS = [ |
954 |
_PNodeName, |
955 |
_PStorageType, |
956 |
_PStorageName, |
957 |
("changes", ht.NoDefault, ht.TDict, "Requested changes"), |
958 |
] |
959 |
|
960 |
|
961 |
class OpRepairNodeStorage(OpCode): |
962 |
"""Repairs the volume group on a node."""
|
963 |
OP_DSC_FIELD = "node_name"
|
964 |
OP_PARAMS = [ |
965 |
_PNodeName, |
966 |
_PStorageType, |
967 |
_PStorageName, |
968 |
_PIgnoreConsistency, |
969 |
] |
970 |
|
971 |
|
972 |
class OpNodeSetParams(OpCode): |
973 |
"""Change the parameters of a node."""
|
974 |
OP_DSC_FIELD = "node_name"
|
975 |
OP_PARAMS = [ |
976 |
_PNodeName, |
977 |
_PForce, |
978 |
("master_candidate", None, ht.TMaybeBool, |
979 |
"Whether the node should become a master candidate"),
|
980 |
("offline", None, ht.TMaybeBool, |
981 |
"Whether the node should be marked as offline"),
|
982 |
("drained", None, ht.TMaybeBool, |
983 |
"Whether the node should be marked as drained"),
|
984 |
("auto_promote", False, ht.TBool, |
985 |
"Whether node(s) should be promoted to master candidate if necessary"),
|
986 |
("master_capable", None, ht.TMaybeBool, |
987 |
"Denote whether node can become master or master candidate"),
|
988 |
("vm_capable", None, ht.TMaybeBool, |
989 |
"Denote whether node can host instances"),
|
990 |
("secondary_ip", None, ht.TMaybeString, |
991 |
"Change node's secondary IP address"),
|
992 |
("ndparams", None, ht.TMaybeDict, "Set node parameters"), |
993 |
("powered", None, ht.TMaybeBool, |
994 |
"Whether the node should be marked as powered"),
|
995 |
] |
996 |
OP_RESULT = _TSetParamsResult |
997 |
|
998 |
|
999 |
class OpNodePowercycle(OpCode): |
1000 |
"""Tries to powercycle a node."""
|
1001 |
OP_DSC_FIELD = "node_name"
|
1002 |
OP_PARAMS = [ |
1003 |
_PNodeName, |
1004 |
_PForce, |
1005 |
] |
1006 |
|
1007 |
|
1008 |
class OpNodeMigrate(OpCode): |
1009 |
"""Migrate all instances from a node."""
|
1010 |
OP_DSC_FIELD = "node_name"
|
1011 |
OP_PARAMS = [ |
1012 |
_PNodeName, |
1013 |
_PMigrationMode, |
1014 |
_PMigrationLive, |
1015 |
_PMigrationTargetNode, |
1016 |
("iallocator", None, ht.TMaybeString, |
1017 |
"Iallocator for deciding the target node for shared-storage instances"),
|
1018 |
] |
1019 |
|
1020 |
|
1021 |
class OpNodeEvacuate(OpCode): |
1022 |
"""Evacuate instances off a number of nodes."""
|
1023 |
OP_DSC_FIELD = "node_name"
|
1024 |
OP_PARAMS = [ |
1025 |
_PEarlyRelease, |
1026 |
_PNodeName, |
1027 |
("remote_node", None, ht.TMaybeString, "New secondary node"), |
1028 |
("iallocator", None, ht.TMaybeString, "Iallocator for computing solution"), |
1029 |
("mode", ht.NoDefault, ht.TElemOf(constants.IALLOCATOR_NEVAC_MODES),
|
1030 |
"Node evacuation mode"),
|
1031 |
] |
1032 |
OP_RESULT = TJobIdListOnly |
1033 |
|
1034 |
|
1035 |
# instance opcodes
|
1036 |
|
1037 |
class OpInstanceCreate(OpCode): |
1038 |
"""Create an instance.
|
1039 |
|
1040 |
@ivar instance_name: Instance name
|
1041 |
@ivar mode: Instance creation mode (one of L{constants.INSTANCE_CREATE_MODES})
|
1042 |
@ivar source_handshake: Signed handshake from source (remote import only)
|
1043 |
@ivar source_x509_ca: Source X509 CA in PEM format (remote import only)
|
1044 |
@ivar source_instance_name: Previous name of instance (remote import only)
|
1045 |
@ivar source_shutdown_timeout: Shutdown timeout used for source instance
|
1046 |
(remote import only)
|
1047 |
|
1048 |
"""
|
1049 |
OP_DSC_FIELD = "instance_name"
|
1050 |
OP_PARAMS = [ |
1051 |
_PInstanceName, |
1052 |
_PForceVariant, |
1053 |
_PWaitForSync, |
1054 |
_PNameCheck, |
1055 |
("beparams", ht.EmptyDict, ht.TDict, "Backend parameters for instance"), |
1056 |
("disks", ht.NoDefault,
|
1057 |
# TODO: Generate check from constants.IDISK_PARAMS_TYPES
|
1058 |
ht.TListOf(ht.TDictOf(ht.TElemOf(constants.IDISK_PARAMS), |
1059 |
ht.TOr(ht.TNonEmptyString, ht.TInt))), |
1060 |
"Disk descriptions, for example ``[{\"%s\": 100}, {\"%s\": 5}]``;"
|
1061 |
" each disk definition must contain a ``%s`` value and"
|
1062 |
" can contain an optional ``%s`` value denoting the disk access mode"
|
1063 |
" (%s)" %
|
1064 |
(constants.IDISK_SIZE, constants.IDISK_SIZE, constants.IDISK_SIZE, |
1065 |
constants.IDISK_MODE, |
1066 |
" or ".join("``%s``" % i for i in sorted(constants.DISK_ACCESS_SET)))), |
1067 |
("disk_template", ht.NoDefault, _BuildDiskTemplateCheck(True), |
1068 |
"Disk template"),
|
1069 |
("file_driver", None, ht.TOr(ht.TNone, ht.TElemOf(constants.FILE_DRIVER)), |
1070 |
"Driver for file-backed disks"),
|
1071 |
("file_storage_dir", None, ht.TMaybeString, |
1072 |
"Directory for storing file-backed disks"),
|
1073 |
("hvparams", ht.EmptyDict, ht.TDict,
|
1074 |
"Hypervisor parameters for instance, hypervisor-dependent"),
|
1075 |
("hypervisor", None, ht.TMaybeString, "Hypervisor"), |
1076 |
("iallocator", None, ht.TMaybeString, |
1077 |
"Iallocator for deciding which node(s) to use"),
|
1078 |
("identify_defaults", False, ht.TBool, |
1079 |
"Reset instance parameters to default if equal"),
|
1080 |
("ip_check", True, ht.TBool, _PIpCheckDoc), |
1081 |
("mode", ht.NoDefault, ht.TElemOf(constants.INSTANCE_CREATE_MODES),
|
1082 |
"Instance creation mode"),
|
1083 |
("nics", ht.NoDefault, ht.TListOf(_TestNicDef),
|
1084 |
"List of NIC (network interface) definitions, for example"
|
1085 |
" ``[{}, {}, {\"%s\": \"198.51.100.4\"}]``; each NIC definition can"
|
1086 |
" contain the optional values %s" %
|
1087 |
(constants.INIC_IP, |
1088 |
", ".join("``%s``" % i for i in sorted(constants.INIC_PARAMS)))), |
1089 |
("no_install", None, ht.TMaybeBool, |
1090 |
"Do not install the OS (will disable automatic start)"),
|
1091 |
("osparams", ht.EmptyDict, ht.TDict, "OS parameters for instance"), |
1092 |
("os_type", None, ht.TMaybeString, "Operating system"), |
1093 |
("pnode", None, ht.TMaybeString, "Primary node"), |
1094 |
("snode", None, ht.TMaybeString, "Secondary node"), |
1095 |
("source_handshake", None, ht.TOr(ht.TList, ht.TNone), |
1096 |
"Signed handshake from source (remote import only)"),
|
1097 |
("source_instance_name", None, ht.TMaybeString, |
1098 |
"Source instance name (remote import only)"),
|
1099 |
("source_shutdown_timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT,
|
1100 |
ht.TPositiveInt, |
1101 |
"How long source instance was given to shut down (remote import only)"),
|
1102 |
("source_x509_ca", None, ht.TMaybeString, |
1103 |
"Source X509 CA in PEM format (remote import only)"),
|
1104 |
("src_node", None, ht.TMaybeString, "Source node for import"), |
1105 |
("src_path", None, ht.TMaybeString, "Source directory for import"), |
1106 |
("start", True, ht.TBool, "Whether to start instance after creation"), |
1107 |
("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), "Instance tags"), |
1108 |
] |
1109 |
OP_RESULT = ht.Comment("instance nodes")(ht.TListOf(ht.TNonEmptyString))
|
1110 |
|
1111 |
|
1112 |
class OpInstanceReinstall(OpCode): |
1113 |
"""Reinstall an instance's OS."""
|
1114 |
OP_DSC_FIELD = "instance_name"
|
1115 |
OP_PARAMS = [ |
1116 |
_PInstanceName, |
1117 |
_PForceVariant, |
1118 |
("os_type", None, ht.TMaybeString, "Instance operating system"), |
1119 |
("osparams", None, ht.TMaybeDict, "Temporary OS parameters"), |
1120 |
] |
1121 |
|
1122 |
|
1123 |
class OpInstanceRemove(OpCode): |
1124 |
"""Remove an instance."""
|
1125 |
OP_DSC_FIELD = "instance_name"
|
1126 |
OP_PARAMS = [ |
1127 |
_PInstanceName, |
1128 |
_PShutdownTimeout, |
1129 |
("ignore_failures", False, ht.TBool, |
1130 |
"Whether to ignore failures during removal"),
|
1131 |
] |
1132 |
|
1133 |
|
1134 |
class OpInstanceRename(OpCode): |
1135 |
"""Rename an instance."""
|
1136 |
OP_PARAMS = [ |
1137 |
_PInstanceName, |
1138 |
_PNameCheck, |
1139 |
("new_name", ht.NoDefault, ht.TNonEmptyString, "New instance name"), |
1140 |
("ip_check", False, ht.TBool, _PIpCheckDoc), |
1141 |
] |
1142 |
OP_RESULT = ht.Comment("New instance name")(ht.TNonEmptyString)
|
1143 |
|
1144 |
|
1145 |
class OpInstanceStartup(OpCode): |
1146 |
"""Startup an instance."""
|
1147 |
OP_DSC_FIELD = "instance_name"
|
1148 |
OP_PARAMS = [ |
1149 |
_PInstanceName, |
1150 |
_PForce, |
1151 |
_PIgnoreOfflineNodes, |
1152 |
("hvparams", ht.EmptyDict, ht.TDict,
|
1153 |
"Temporary hypervisor parameters, hypervisor-dependent"),
|
1154 |
("beparams", ht.EmptyDict, ht.TDict, "Temporary backend parameters"), |
1155 |
_PNoRemember, |
1156 |
_PStartupPaused, |
1157 |
] |
1158 |
|
1159 |
|
1160 |
class OpInstanceShutdown(OpCode): |
1161 |
"""Shutdown an instance."""
|
1162 |
OP_DSC_FIELD = "instance_name"
|
1163 |
OP_PARAMS = [ |
1164 |
_PInstanceName, |
1165 |
_PIgnoreOfflineNodes, |
1166 |
("timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT, ht.TPositiveInt,
|
1167 |
"How long to wait for instance to shut down"),
|
1168 |
_PNoRemember, |
1169 |
] |
1170 |
|
1171 |
|
1172 |
class OpInstanceReboot(OpCode): |
1173 |
"""Reboot an instance."""
|
1174 |
OP_DSC_FIELD = "instance_name"
|
1175 |
OP_PARAMS = [ |
1176 |
_PInstanceName, |
1177 |
_PShutdownTimeout, |
1178 |
("ignore_secondaries", False, ht.TBool, |
1179 |
"Whether to start the instance even if secondary disks are failing"),
|
1180 |
("reboot_type", ht.NoDefault, ht.TElemOf(constants.REBOOT_TYPES),
|
1181 |
"How to reboot instance"),
|
1182 |
] |
1183 |
|
1184 |
|
1185 |
class OpInstanceReplaceDisks(OpCode): |
1186 |
"""Replace the disks of an instance."""
|
1187 |
OP_DSC_FIELD = "instance_name"
|
1188 |
OP_PARAMS = [ |
1189 |
_PInstanceName, |
1190 |
_PEarlyRelease, |
1191 |
("mode", ht.NoDefault, ht.TElemOf(constants.REPLACE_MODES),
|
1192 |
"Replacement mode"),
|
1193 |
("disks", ht.EmptyList, ht.TListOf(ht.TPositiveInt),
|
1194 |
"Disk indexes"),
|
1195 |
("remote_node", None, ht.TMaybeString, "New secondary node"), |
1196 |
("iallocator", None, ht.TMaybeString, |
1197 |
"Iallocator for deciding new secondary node"),
|
1198 |
] |
1199 |
|
1200 |
|
1201 |
class OpInstanceFailover(OpCode): |
1202 |
"""Failover an instance."""
|
1203 |
OP_DSC_FIELD = "instance_name"
|
1204 |
OP_PARAMS = [ |
1205 |
_PInstanceName, |
1206 |
_PShutdownTimeout, |
1207 |
_PIgnoreConsistency, |
1208 |
_PMigrationTargetNode, |
1209 |
("iallocator", None, ht.TMaybeString, |
1210 |
"Iallocator for deciding the target node for shared-storage instances"),
|
1211 |
] |
1212 |
|
1213 |
|
1214 |
class OpInstanceMigrate(OpCode): |
1215 |
"""Migrate an instance.
|
1216 |
|
1217 |
This migrates (without shutting down an instance) to its secondary
|
1218 |
node.
|
1219 |
|
1220 |
@ivar instance_name: the name of the instance
|
1221 |
@ivar mode: the migration mode (live, non-live or None for auto)
|
1222 |
|
1223 |
"""
|
1224 |
OP_DSC_FIELD = "instance_name"
|
1225 |
OP_PARAMS = [ |
1226 |
_PInstanceName, |
1227 |
_PMigrationMode, |
1228 |
_PMigrationLive, |
1229 |
_PMigrationTargetNode, |
1230 |
("cleanup", False, ht.TBool, |
1231 |
"Whether a previously failed migration should be cleaned up"),
|
1232 |
("iallocator", None, ht.TMaybeString, |
1233 |
"Iallocator for deciding the target node for shared-storage instances"),
|
1234 |
("allow_failover", False, ht.TBool, |
1235 |
"Whether we can fallback to failover if migration is not possible"),
|
1236 |
] |
1237 |
|
1238 |
|
1239 |
class OpInstanceMove(OpCode): |
1240 |
"""Move an instance.
|
1241 |
|
1242 |
This move (with shutting down an instance and data copying) to an
|
1243 |
arbitrary node.
|
1244 |
|
1245 |
@ivar instance_name: the name of the instance
|
1246 |
@ivar target_node: the destination node
|
1247 |
|
1248 |
"""
|
1249 |
OP_DSC_FIELD = "instance_name"
|
1250 |
OP_PARAMS = [ |
1251 |
_PInstanceName, |
1252 |
_PShutdownTimeout, |
1253 |
("target_node", ht.NoDefault, ht.TNonEmptyString, "Target node"), |
1254 |
_PIgnoreConsistency, |
1255 |
] |
1256 |
|
1257 |
|
1258 |
class OpInstanceConsole(OpCode): |
1259 |
"""Connect to an instance's console."""
|
1260 |
OP_DSC_FIELD = "instance_name"
|
1261 |
OP_PARAMS = [ |
1262 |
_PInstanceName |
1263 |
] |
1264 |
|
1265 |
|
1266 |
class OpInstanceActivateDisks(OpCode): |
1267 |
"""Activate an instance's disks."""
|
1268 |
OP_DSC_FIELD = "instance_name"
|
1269 |
OP_PARAMS = [ |
1270 |
_PInstanceName, |
1271 |
("ignore_size", False, ht.TBool, "Whether to ignore recorded size"), |
1272 |
] |
1273 |
|
1274 |
|
1275 |
class OpInstanceDeactivateDisks(OpCode): |
1276 |
"""Deactivate an instance's disks."""
|
1277 |
OP_DSC_FIELD = "instance_name"
|
1278 |
OP_PARAMS = [ |
1279 |
_PInstanceName, |
1280 |
_PForce, |
1281 |
] |
1282 |
|
1283 |
|
1284 |
class OpInstanceRecreateDisks(OpCode): |
1285 |
"""Recreate an instance's disks."""
|
1286 |
OP_DSC_FIELD = "instance_name"
|
1287 |
OP_PARAMS = [ |
1288 |
_PInstanceName, |
1289 |
("disks", ht.EmptyList, ht.TListOf(ht.TPositiveInt),
|
1290 |
"List of disk indexes"),
|
1291 |
("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
|
1292 |
"New instance nodes, if relocation is desired"),
|
1293 |
] |
1294 |
|
1295 |
|
1296 |
class OpInstanceQuery(OpCode): |
1297 |
"""Compute the list of instances."""
|
1298 |
OP_PARAMS = [ |
1299 |
_POutputFields, |
1300 |
_PUseLocking, |
1301 |
("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
|
1302 |
"Empty list to query all instances, instance names otherwise"),
|
1303 |
] |
1304 |
|
1305 |
|
1306 |
class OpInstanceQueryData(OpCode): |
1307 |
"""Compute the run-time status of instances."""
|
1308 |
OP_PARAMS = [ |
1309 |
_PUseLocking, |
1310 |
("instances", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
|
1311 |
"Instance names"),
|
1312 |
("static", False, ht.TBool, |
1313 |
"Whether to only return configuration data without querying"
|
1314 |
" nodes"),
|
1315 |
] |
1316 |
|
1317 |
|
1318 |
class OpInstanceSetParams(OpCode): |
1319 |
"""Change the parameters of an instance."""
|
1320 |
OP_DSC_FIELD = "instance_name"
|
1321 |
OP_PARAMS = [ |
1322 |
_PInstanceName, |
1323 |
_PForce, |
1324 |
_PForceVariant, |
1325 |
# TODO: Use _TestNicDef
|
1326 |
("nics", ht.EmptyList, ht.TList,
|
1327 |
"List of NIC changes. Each item is of the form ``(op, settings)``."
|
1328 |
" ``op`` can be ``%s`` to add a new NIC with the specified settings,"
|
1329 |
" ``%s`` to remove the last NIC or a number to modify the settings"
|
1330 |
" of the NIC with that index." %
|
1331 |
(constants.DDM_ADD, constants.DDM_REMOVE)), |
1332 |
("disks", ht.EmptyList, ht.TList, "List of disk changes. See ``nics``."), |
1333 |
("beparams", ht.EmptyDict, ht.TDict, "Per-instance backend parameters"), |
1334 |
("hvparams", ht.EmptyDict, ht.TDict,
|
1335 |
"Per-instance hypervisor parameters, hypervisor-dependent"),
|
1336 |
("disk_template", None, ht.TOr(ht.TNone, _BuildDiskTemplateCheck(False)), |
1337 |
"Disk template for instance"),
|
1338 |
("remote_node", None, ht.TMaybeString, |
1339 |
"Secondary node (used when changing disk template)"),
|
1340 |
("os_name", None, ht.TMaybeString, |
1341 |
"Change instance's OS name. Does not reinstall the instance."),
|
1342 |
("osparams", None, ht.TMaybeDict, "Per-instance OS parameters"), |
1343 |
("wait_for_sync", True, ht.TBool, |
1344 |
"Whether to wait for the disk to synchronize, when changing template"),
|
1345 |
] |
1346 |
OP_RESULT = _TSetParamsResult |
1347 |
|
1348 |
|
1349 |
class OpInstanceGrowDisk(OpCode): |
1350 |
"""Grow a disk of an instance."""
|
1351 |
OP_DSC_FIELD = "instance_name"
|
1352 |
OP_PARAMS = [ |
1353 |
_PInstanceName, |
1354 |
_PWaitForSync, |
1355 |
("disk", ht.NoDefault, ht.TInt, "Disk index"), |
1356 |
("amount", ht.NoDefault, ht.TInt,
|
1357 |
"Amount of disk space to add (megabytes)"),
|
1358 |
] |
1359 |
|
1360 |
|
1361 |
class OpInstanceChangeGroup(OpCode): |
1362 |
"""Moves an instance to another node group."""
|
1363 |
OP_DSC_FIELD = "instance_name"
|
1364 |
OP_PARAMS = [ |
1365 |
_PInstanceName, |
1366 |
_PEarlyRelease, |
1367 |
("iallocator", None, ht.TMaybeString, "Iallocator for computing solution"), |
1368 |
("target_groups", None, ht.TOr(ht.TNone, ht.TListOf(ht.TNonEmptyString)), |
1369 |
"Destination group names or UUIDs (defaults to \"all but current group\""),
|
1370 |
] |
1371 |
OP_RESULT = TJobIdListOnly |
1372 |
|
1373 |
|
1374 |
# Node group opcodes
|
1375 |
|
1376 |
class OpGroupAdd(OpCode): |
1377 |
"""Add a node group to the cluster."""
|
1378 |
OP_DSC_FIELD = "group_name"
|
1379 |
OP_PARAMS = [ |
1380 |
_PGroupName, |
1381 |
_PNodeGroupAllocPolicy, |
1382 |
_PGroupNodeParams, |
1383 |
] |
1384 |
|
1385 |
|
1386 |
class OpGroupAssignNodes(OpCode): |
1387 |
"""Assign nodes to a node group."""
|
1388 |
OP_DSC_FIELD = "group_name"
|
1389 |
OP_PARAMS = [ |
1390 |
_PGroupName, |
1391 |
_PForce, |
1392 |
("nodes", ht.NoDefault, ht.TListOf(ht.TNonEmptyString),
|
1393 |
"List of nodes to assign"),
|
1394 |
] |
1395 |
|
1396 |
|
1397 |
class OpGroupQuery(OpCode): |
1398 |
"""Compute the list of node groups."""
|
1399 |
OP_PARAMS = [ |
1400 |
_POutputFields, |
1401 |
("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
|
1402 |
"Empty list to query all groups, group names otherwise"),
|
1403 |
] |
1404 |
|
1405 |
|
1406 |
class OpGroupSetParams(OpCode): |
1407 |
"""Change the parameters of a node group."""
|
1408 |
OP_DSC_FIELD = "group_name"
|
1409 |
OP_PARAMS = [ |
1410 |
_PGroupName, |
1411 |
_PNodeGroupAllocPolicy, |
1412 |
_PGroupNodeParams, |
1413 |
] |
1414 |
OP_RESULT = _TSetParamsResult |
1415 |
|
1416 |
|
1417 |
class OpGroupRemove(OpCode): |
1418 |
"""Remove a node group from the cluster."""
|
1419 |
OP_DSC_FIELD = "group_name"
|
1420 |
OP_PARAMS = [ |
1421 |
_PGroupName, |
1422 |
] |
1423 |
|
1424 |
|
1425 |
class OpGroupRename(OpCode): |
1426 |
"""Rename a node group in the cluster."""
|
1427 |
OP_PARAMS = [ |
1428 |
_PGroupName, |
1429 |
("new_name", ht.NoDefault, ht.TNonEmptyString, "New group name"), |
1430 |
] |
1431 |
OP_RESULT = ht.Comment("New group name")(ht.TNonEmptyString)
|
1432 |
|
1433 |
|
1434 |
class OpGroupEvacuate(OpCode): |
1435 |
"""Evacuate a node group in the cluster."""
|
1436 |
OP_DSC_FIELD = "group_name"
|
1437 |
OP_PARAMS = [ |
1438 |
_PGroupName, |
1439 |
_PEarlyRelease, |
1440 |
("iallocator", None, ht.TMaybeString, "Iallocator for computing solution"), |
1441 |
("target_groups", None, ht.TOr(ht.TNone, ht.TListOf(ht.TNonEmptyString)), |
1442 |
"Destination group names or UUIDs"),
|
1443 |
] |
1444 |
OP_RESULT = TJobIdListOnly |
1445 |
|
1446 |
|
1447 |
# OS opcodes
|
1448 |
class OpOsDiagnose(OpCode): |
1449 |
"""Compute the list of guest operating systems."""
|
1450 |
OP_PARAMS = [ |
1451 |
_POutputFields, |
1452 |
("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
|
1453 |
"Which operating systems to diagnose"),
|
1454 |
] |
1455 |
|
1456 |
|
1457 |
# Exports opcodes
|
1458 |
class OpBackupQuery(OpCode): |
1459 |
"""Compute the list of exported images."""
|
1460 |
OP_PARAMS = [ |
1461 |
_PUseLocking, |
1462 |
("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString),
|
1463 |
"Empty list to query all nodes, node names otherwise"),
|
1464 |
] |
1465 |
|
1466 |
|
1467 |
class OpBackupPrepare(OpCode): |
1468 |
"""Prepares an instance export.
|
1469 |
|
1470 |
@ivar instance_name: Instance name
|
1471 |
@ivar mode: Export mode (one of L{constants.EXPORT_MODES})
|
1472 |
|
1473 |
"""
|
1474 |
OP_DSC_FIELD = "instance_name"
|
1475 |
OP_PARAMS = [ |
1476 |
_PInstanceName, |
1477 |
("mode", ht.NoDefault, ht.TElemOf(constants.EXPORT_MODES),
|
1478 |
"Export mode"),
|
1479 |
] |
1480 |
|
1481 |
|
1482 |
class OpBackupExport(OpCode): |
1483 |
"""Export an instance.
|
1484 |
|
1485 |
For local exports, the export destination is the node name. For remote
|
1486 |
exports, the export destination is a list of tuples, each consisting of
|
1487 |
hostname/IP address, port, HMAC and HMAC salt. The HMAC is calculated using
|
1488 |
the cluster domain secret over the value "${index}:${hostname}:${port}". The
|
1489 |
destination X509 CA must be a signed certificate.
|
1490 |
|
1491 |
@ivar mode: Export mode (one of L{constants.EXPORT_MODES})
|
1492 |
@ivar target_node: Export destination
|
1493 |
@ivar x509_key_name: X509 key to use (remote export only)
|
1494 |
@ivar destination_x509_ca: Destination X509 CA in PEM format (remote export
|
1495 |
only)
|
1496 |
|
1497 |
"""
|
1498 |
OP_DSC_FIELD = "instance_name"
|
1499 |
OP_PARAMS = [ |
1500 |
_PInstanceName, |
1501 |
_PShutdownTimeout, |
1502 |
# TODO: Rename target_node as it changes meaning for different export modes
|
1503 |
# (e.g. "destination")
|
1504 |
("target_node", ht.NoDefault, ht.TOr(ht.TNonEmptyString, ht.TList),
|
1505 |
"Destination information, depends on export mode"),
|
1506 |
("shutdown", True, ht.TBool, "Whether to shutdown instance before export"), |
1507 |
("remove_instance", False, ht.TBool, |
1508 |
"Whether to remove instance after export"),
|
1509 |
("ignore_remove_failures", False, ht.TBool, |
1510 |
"Whether to ignore failures while removing instances"),
|
1511 |
("mode", constants.EXPORT_MODE_LOCAL, ht.TElemOf(constants.EXPORT_MODES),
|
1512 |
"Export mode"),
|
1513 |
("x509_key_name", None, ht.TOr(ht.TList, ht.TNone), |
1514 |
"Name of X509 key (remote export only)"),
|
1515 |
("destination_x509_ca", None, ht.TMaybeString, |
1516 |
"Destination X509 CA (remote export only)"),
|
1517 |
] |
1518 |
|
1519 |
|
1520 |
class OpBackupRemove(OpCode): |
1521 |
"""Remove an instance's export."""
|
1522 |
OP_DSC_FIELD = "instance_name"
|
1523 |
OP_PARAMS = [ |
1524 |
_PInstanceName, |
1525 |
] |
1526 |
|
1527 |
|
1528 |
# Tags opcodes
|
1529 |
class OpTagsGet(OpCode): |
1530 |
"""Returns the tags of the given object."""
|
1531 |
OP_DSC_FIELD = "name"
|
1532 |
OP_PARAMS = [ |
1533 |
_PTagKind, |
1534 |
# Name is only meaningful for nodes and instances
|
1535 |
("name", ht.NoDefault, ht.TMaybeString, None), |
1536 |
] |
1537 |
|
1538 |
|
1539 |
class OpTagsSearch(OpCode): |
1540 |
"""Searches the tags in the cluster for a given pattern."""
|
1541 |
OP_DSC_FIELD = "pattern"
|
1542 |
OP_PARAMS = [ |
1543 |
("pattern", ht.NoDefault, ht.TNonEmptyString, None), |
1544 |
] |
1545 |
|
1546 |
|
1547 |
class OpTagsSet(OpCode): |
1548 |
"""Add a list of tags on a given object."""
|
1549 |
OP_PARAMS = [ |
1550 |
_PTagKind, |
1551 |
_PTags, |
1552 |
# Name is only meaningful for nodes and instances
|
1553 |
("name", ht.NoDefault, ht.TMaybeString, None), |
1554 |
] |
1555 |
|
1556 |
|
1557 |
class OpTagsDel(OpCode): |
1558 |
"""Remove a list of tags from a given object."""
|
1559 |
OP_PARAMS = [ |
1560 |
_PTagKind, |
1561 |
_PTags, |
1562 |
# Name is only meaningful for nodes and instances
|
1563 |
("name", ht.NoDefault, ht.TMaybeString, None), |
1564 |
] |
1565 |
|
1566 |
|
1567 |
# Test opcodes
|
1568 |
class OpTestDelay(OpCode): |
1569 |
"""Sleeps for a configured amount of time.
|
1570 |
|
1571 |
This is used just for debugging and testing.
|
1572 |
|
1573 |
Parameters:
|
1574 |
- duration: the time to sleep
|
1575 |
- on_master: if true, sleep on the master
|
1576 |
- on_nodes: list of nodes in which to sleep
|
1577 |
|
1578 |
If the on_master parameter is true, it will execute a sleep on the
|
1579 |
master (before any node sleep).
|
1580 |
|
1581 |
If the on_nodes list is not empty, it will sleep on those nodes
|
1582 |
(after the sleep on the master, if that is enabled).
|
1583 |
|
1584 |
As an additional feature, the case of duration < 0 will be reported
|
1585 |
as an execution error, so this opcode can be used as a failure
|
1586 |
generator. The case of duration == 0 will not be treated specially.
|
1587 |
|
1588 |
"""
|
1589 |
OP_DSC_FIELD = "duration"
|
1590 |
OP_PARAMS = [ |
1591 |
("duration", ht.NoDefault, ht.TNumber, None), |
1592 |
("on_master", True, ht.TBool, None), |
1593 |
("on_nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None), |
1594 |
("repeat", 0, ht.TPositiveInt, None), |
1595 |
] |
1596 |
|
1597 |
|
1598 |
class OpTestAllocator(OpCode): |
1599 |
"""Allocator framework testing.
|
1600 |
|
1601 |
This opcode has two modes:
|
1602 |
- gather and return allocator input for a given mode (allocate new
|
1603 |
or replace secondary) and a given instance definition (direction
|
1604 |
'in')
|
1605 |
- run a selected allocator for a given operation (as above) and
|
1606 |
return the allocator output (direction 'out')
|
1607 |
|
1608 |
"""
|
1609 |
OP_DSC_FIELD = "allocator"
|
1610 |
OP_PARAMS = [ |
1611 |
("direction", ht.NoDefault,
|
1612 |
ht.TElemOf(constants.VALID_IALLOCATOR_DIRECTIONS), None),
|
1613 |
("mode", ht.NoDefault, ht.TElemOf(constants.VALID_IALLOCATOR_MODES), None), |
1614 |
("name", ht.NoDefault, ht.TNonEmptyString, None), |
1615 |
("nics", ht.NoDefault, ht.TOr(ht.TNone, ht.TListOf(
|
1616 |
ht.TDictOf(ht.TElemOf([constants.INIC_MAC, constants.INIC_IP, "bridge"]),
|
1617 |
ht.TOr(ht.TNone, ht.TNonEmptyString)))), None),
|
1618 |
("disks", ht.NoDefault, ht.TOr(ht.TNone, ht.TList), None), |
1619 |
("hypervisor", None, ht.TMaybeString, None), |
1620 |
("allocator", None, ht.TMaybeString, None), |
1621 |
("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString), None), |
1622 |
("memory", None, ht.TOr(ht.TNone, ht.TPositiveInt), None), |
1623 |
("vcpus", None, ht.TOr(ht.TNone, ht.TPositiveInt), None), |
1624 |
("os", None, ht.TMaybeString, None), |
1625 |
("disk_template", None, ht.TMaybeString, None), |
1626 |
("instances", None, ht.TOr(ht.TNone, ht.TListOf(ht.TNonEmptyString)), |
1627 |
None),
|
1628 |
("evac_mode", None, |
1629 |
ht.TOr(ht.TNone, ht.TElemOf(constants.IALLOCATOR_NEVAC_MODES)), None),
|
1630 |
("target_groups", None, ht.TOr(ht.TNone, ht.TListOf(ht.TNonEmptyString)), |
1631 |
None),
|
1632 |
] |
1633 |
|
1634 |
|
1635 |
class OpTestJqueue(OpCode): |
1636 |
"""Utility opcode to test some aspects of the job queue.
|
1637 |
|
1638 |
"""
|
1639 |
OP_PARAMS = [ |
1640 |
("notify_waitlock", False, ht.TBool, None), |
1641 |
("notify_exec", False, ht.TBool, None), |
1642 |
("log_messages", ht.EmptyList, ht.TListOf(ht.TString), None), |
1643 |
("fail", False, ht.TBool, None), |
1644 |
] |
1645 |
|
1646 |
|
1647 |
class OpTestDummy(OpCode): |
1648 |
"""Utility opcode used by unittests.
|
1649 |
|
1650 |
"""
|
1651 |
OP_PARAMS = [ |
1652 |
("result", ht.NoDefault, ht.NoType, None), |
1653 |
("messages", ht.NoDefault, ht.NoType, None), |
1654 |
("fail", ht.NoDefault, ht.NoType, None), |
1655 |
("submit_jobs", None, ht.NoType, None), |
1656 |
] |
1657 |
WITH_LU = False
|
1658 |
|
1659 |
|
1660 |
def _GetOpList(): |
1661 |
"""Returns list of all defined opcodes.
|
1662 |
|
1663 |
Does not eliminate duplicates by C{OP_ID}.
|
1664 |
|
1665 |
"""
|
1666 |
return [v for v in globals().values() |
1667 |
if (isinstance(v, type) and issubclass(v, OpCode) and |
1668 |
hasattr(v, "OP_ID") and v is not OpCode)] |
1669 |
|
1670 |
|
1671 |
OP_MAPPING = dict((v.OP_ID, v) for v in _GetOpList()) |