root / lib / opcodes.py @ 82599b3e
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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-msg=R0903
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import logging |
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import re |
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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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#: the shutdown timeout
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_PShutdownTimeout = ("shutdown_timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT,
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ht.TPositiveInt) |
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#: the force parameter
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_PForce = ("force", False, ht.TBool) |
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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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#: Whether to ignore offline nodes
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_PIgnoreOfflineNodes = ("ignore_offline_nodes", False, ht.TBool) |
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#: a required node name (for single-node LUs)
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_PNodeName = ("node_name", ht.NoDefault, ht.TNonEmptyString)
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#: a required node group name (for single-group LUs)
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_PGroupName = ("group_name", ht.NoDefault, ht.TNonEmptyString)
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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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#: Obsolete 'live' migration mode (boolean)
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_PMigrationLive = ("live", None, ht.TMaybeBool) |
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#: Tag type
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_PTagKind = ("kind", ht.NoDefault, ht.TElemOf(constants.VALID_TAG_TYPES))
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#: List of tag strings
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_PTags = ("tags", ht.NoDefault, ht.TListOf(ht.TNonEmptyString))
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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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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 _CheckDiskTemplate(template): |
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"""Ensure a given disk template is valid.
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"""
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if template not in constants.DISK_TEMPLATES: |
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# Using str.join directly to avoid importing utils for CommaJoin
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msg = ("Invalid disk template name '%s', valid templates are: %s" %
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(template, ", ".join(constants.DISK_TEMPLATES)))
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raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
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if template == constants.DT_FILE:
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RequireFileStorage() |
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return True |
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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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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-msg=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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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 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-msg=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), |
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("debug_level", None, ht.TOr(ht.TNone, ht.TPositiveInt)), |
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("priority", constants.OP_PRIO_DEFAULT,
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ht.TElemOf(constants.OP_PRIO_SUBMIT_VALID)), |
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] |
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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,
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so that on unload we can identify the correct class for
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instantiating the opcode.
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@rtype: C{dict}
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@return: the state as a dictionary
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"""
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data = BaseOpCode.__getstate__(self)
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data["OP_ID"] = self.OP_ID |
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return data
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@classmethod
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def LoadOpCode(cls, data): |
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"""Generic load opcode method.
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The method identifies the correct opcode class from the dict-form
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by looking for a OP_ID key, if this is not found, or its value is
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not available in this module as a child of this class, we fail.
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@type data: C{dict}
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@param data: the serialized opcode
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"""
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if not isinstance(data, dict): |
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raise ValueError("Invalid data to LoadOpCode (%s)" % type(data)) |
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if "OP_ID" not in data: |
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raise ValueError("Invalid data to LoadOpcode, missing OP_ID") |
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op_id = data["OP_ID"]
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op_class = None
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if op_id in OP_MAPPING: |
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op_class = OP_MAPPING[op_id] |
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else:
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raise ValueError("Invalid data to LoadOpCode: OP_ID %s unsupported" % |
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op_id) |
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op = op_class() |
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new_data = data.copy() |
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del new_data["OP_ID"] |
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op.__setstate__(new_data) |
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return op
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def Summary(self): |
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"""Generates a summary description of this opcode.
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The summary is the value of the OP_ID attribute (without the "OP_"
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prefix), plus the value of the OP_DSC_FIELD attribute, if one was
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defined; this field should allow to easily identify the operation
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(for an instance creation job, e.g., it would be the instance
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name).
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"""
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assert self.OP_ID is not None and len(self.OP_ID) > 3 |
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# all OP_ID start with OP_, we remove that
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txt = self.OP_ID[3:] |
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field_name = getattr(self, "OP_DSC_FIELD", None) |
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if field_name:
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field_value = getattr(self, field_name, None) |
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if isinstance(field_value, (list, tuple)): |
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field_value = ",".join(str(i) for i in field_value) |
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txt = "%s(%s)" % (txt, field_value)
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return txt
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# cluster opcodes
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class OpClusterPostInit(OpCode): |
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"""Post cluster initialization.
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This opcode does not touch the cluster at all. Its purpose is to run hooks
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after the cluster has been initialized.
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"""
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class OpClusterDestroy(OpCode): |
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"""Destroy the cluster.
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This opcode has no other parameters. All the state is irreversibly
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lost after the execution of this opcode.
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"""
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class OpClusterQuery(OpCode): |
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"""Query cluster information."""
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class OpClusterVerify(OpCode): |
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"""Verify the cluster state.
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@type skip_checks: C{list}
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@ivar skip_checks: steps to be skipped from the verify process; this
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needs to be a subset of
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L{constants.VERIFY_OPTIONAL_CHECKS}; currently
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only L{constants.VERIFY_NPLUSONE_MEM} can be passed
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"""
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OP_PARAMS = [ |
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("skip_checks", ht.EmptyList,
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ht.TListOf(ht.TElemOf(constants.VERIFY_OPTIONAL_CHECKS))), |
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("verbose", False, ht.TBool), |
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("error_codes", False, ht.TBool), |
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("debug_simulate_errors", False, ht.TBool), |
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] |
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class OpClusterVerifyDisks(OpCode): |
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"""Verify the cluster disks.
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Parameters: none
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Result: a tuple of four elements:
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- list of node names with bad data returned (unreachable, etc.)
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- dict of node names with broken volume groups (values: error msg)
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- list of instances with degraded disks (that should be activated)
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- dict of instances with missing logical volumes (values: (node, vol)
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pairs with details about the missing volumes)
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In normal operation, all lists should be empty. A non-empty instance
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list (3rd element of the result) is still ok (errors were fixed) but
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non-empty node list means some node is down, and probably there are
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unfixable drbd errors.
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Note that only instances that are drbd-based are taken into
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consideration. This might need to be revisited in the future.
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"""
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class OpClusterRepairDiskSizes(OpCode): |
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"""Verify the disk sizes of the instances and fixes configuration
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mimatches.
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Parameters: optional instances list, in case we want to restrict the
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checks to only a subset of the instances.
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Result: a list of tuples, (instance, disk, new-size) for changed
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configurations.
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In normal operation, the list should be empty.
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@type instances: list
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@ivar instances: the list of instances to check, or empty for all instances
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"""
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OP_PARAMS = [ |
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("instances", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
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] |
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class OpClusterConfigQuery(OpCode): |
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"""Query cluster configuration values."""
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OP_PARAMS = [ |
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_POutputFields |
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] |
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class OpClusterRename(OpCode): |
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"""Rename the cluster.
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@type name: C{str}
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@ivar name: The new name of the cluster. The name and/or the master IP
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address will be changed to match the new name and its IP
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address.
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"""
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OP_DSC_FIELD = "name"
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OP_PARAMS = [ |
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("name", ht.NoDefault, ht.TNonEmptyString),
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] |
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class OpClusterSetParams(OpCode): |
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"""Change the parameters of the cluster.
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@type vg_name: C{str} or C{None}
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@ivar vg_name: The new volume group name or None to disable LVM usage.
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"""
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OP_PARAMS = [ |
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("vg_name", None, ht.TMaybeString), |
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("enabled_hypervisors", None, |
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ht.TOr(ht.TAnd(ht.TListOf(ht.TElemOf(constants.HYPER_TYPES)), ht.TTrue), |
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ht.TNone)), |
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("hvparams", None, ht.TOr(ht.TDictOf(ht.TNonEmptyString, ht.TDict), |
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ht.TNone)), |
525 |
("beparams", None, ht.TOr(ht.TDict, ht.TNone)), |
526 |
("os_hvp", None, ht.TOr(ht.TDictOf(ht.TNonEmptyString, ht.TDict), |
527 |
ht.TNone)), |
528 |
("osparams", None, ht.TOr(ht.TDictOf(ht.TNonEmptyString, ht.TDict), |
529 |
ht.TNone)), |
530 |
("candidate_pool_size", None, ht.TOr(ht.TStrictPositiveInt, ht.TNone)), |
531 |
("uid_pool", None, ht.NoType), |
532 |
("add_uids", None, ht.NoType), |
533 |
("remove_uids", None, ht.NoType), |
534 |
("maintain_node_health", None, ht.TMaybeBool), |
535 |
("prealloc_wipe_disks", None, ht.TMaybeBool), |
536 |
("nicparams", None, ht.TOr(ht.TDict, ht.TNone)), |
537 |
("ndparams", None, ht.TOr(ht.TDict, ht.TNone)), |
538 |
("drbd_helper", None, ht.TOr(ht.TString, ht.TNone)), |
539 |
("default_iallocator", None, ht.TOr(ht.TString, ht.TNone)), |
540 |
("master_netdev", None, ht.TOr(ht.TString, ht.TNone)), |
541 |
("reserved_lvs", None, ht.TOr(ht.TListOf(ht.TNonEmptyString), ht.TNone)), |
542 |
("hidden_os", None, ht.TOr(ht.TListOf( |
543 |
ht.TAnd(ht.TList, |
544 |
ht.TIsLength(2),
|
545 |
ht.TMap(lambda v: v[0], ht.TElemOf(constants.DDMS_VALUES)))), |
546 |
ht.TNone)), |
547 |
("blacklisted_os", None, ht.TOr(ht.TListOf( |
548 |
ht.TAnd(ht.TList, |
549 |
ht.TIsLength(2),
|
550 |
ht.TMap(lambda v: v[0], ht.TElemOf(constants.DDMS_VALUES)))), |
551 |
ht.TNone)), |
552 |
] |
553 |
|
554 |
|
555 |
class OpClusterRedistConf(OpCode): |
556 |
"""Force a full push of the cluster configuration.
|
557 |
|
558 |
"""
|
559 |
|
560 |
|
561 |
class OpQuery(OpCode): |
562 |
"""Query for resources/items.
|
563 |
|
564 |
@ivar what: Resources to query for, must be one of L{constants.QR_OP_QUERY}
|
565 |
@ivar fields: List of fields to retrieve
|
566 |
@ivar filter: Query filter
|
567 |
|
568 |
"""
|
569 |
OP_PARAMS = [ |
570 |
("what", ht.NoDefault, ht.TElemOf(constants.QR_OP_QUERY)),
|
571 |
("fields", ht.NoDefault, ht.TListOf(ht.TNonEmptyString)),
|
572 |
("filter", None, ht.TOr(ht.TNone, |
573 |
ht.TListOf(ht.TOr(ht.TNonEmptyString, ht.TList)))), |
574 |
] |
575 |
|
576 |
|
577 |
class OpQueryFields(OpCode): |
578 |
"""Query for available resource/item fields.
|
579 |
|
580 |
@ivar what: Resources to query for, must be one of L{constants.QR_OP_QUERY}
|
581 |
@ivar fields: List of fields to retrieve
|
582 |
|
583 |
"""
|
584 |
OP_PARAMS = [ |
585 |
("what", ht.NoDefault, ht.TElemOf(constants.QR_OP_QUERY)),
|
586 |
("fields", None, ht.TOr(ht.TNone, ht.TListOf(ht.TNonEmptyString))), |
587 |
] |
588 |
|
589 |
|
590 |
class OpOobCommand(OpCode): |
591 |
"""Interact with OOB."""
|
592 |
OP_PARAMS = [ |
593 |
_PNodeName, |
594 |
("command", None, ht.TElemOf(constants.OOB_COMMANDS)), |
595 |
("timeout", constants.OOB_TIMEOUT, ht.TInt),
|
596 |
] |
597 |
|
598 |
|
599 |
# node opcodes
|
600 |
|
601 |
class OpNodeRemove(OpCode): |
602 |
"""Remove a node.
|
603 |
|
604 |
@type node_name: C{str}
|
605 |
@ivar node_name: The name of the node to remove. If the node still has
|
606 |
instances on it, the operation will fail.
|
607 |
|
608 |
"""
|
609 |
OP_DSC_FIELD = "node_name"
|
610 |
OP_PARAMS = [ |
611 |
_PNodeName, |
612 |
] |
613 |
|
614 |
|
615 |
class OpNodeAdd(OpCode): |
616 |
"""Add a node to the cluster.
|
617 |
|
618 |
@type node_name: C{str}
|
619 |
@ivar node_name: The name of the node to add. This can be a short name,
|
620 |
but it will be expanded to the FQDN.
|
621 |
@type primary_ip: IP address
|
622 |
@ivar primary_ip: The primary IP of the node. This will be ignored when the
|
623 |
opcode is submitted, but will be filled during the node
|
624 |
add (so it will be visible in the job query).
|
625 |
@type secondary_ip: IP address
|
626 |
@ivar secondary_ip: The secondary IP of the node. This needs to be passed
|
627 |
if the cluster has been initialized in 'dual-network'
|
628 |
mode, otherwise it must not be given.
|
629 |
@type readd: C{bool}
|
630 |
@ivar readd: Whether to re-add an existing node to the cluster. If
|
631 |
this is not passed, then the operation will abort if the node
|
632 |
name is already in the cluster; use this parameter to 'repair'
|
633 |
a node that had its configuration broken, or was reinstalled
|
634 |
without removal from the cluster.
|
635 |
@type group: C{str}
|
636 |
@ivar group: The node group to which this node will belong.
|
637 |
@type vm_capable: C{bool}
|
638 |
@ivar vm_capable: The vm_capable node attribute
|
639 |
@type master_capable: C{bool}
|
640 |
@ivar master_capable: The master_capable node attribute
|
641 |
|
642 |
"""
|
643 |
OP_DSC_FIELD = "node_name"
|
644 |
OP_PARAMS = [ |
645 |
_PNodeName, |
646 |
("primary_ip", None, ht.NoType), |
647 |
("secondary_ip", None, ht.TMaybeString), |
648 |
("readd", False, ht.TBool), |
649 |
("group", None, ht.TMaybeString), |
650 |
("master_capable", None, ht.TMaybeBool), |
651 |
("vm_capable", None, ht.TMaybeBool), |
652 |
("ndparams", None, ht.TOr(ht.TDict, ht.TNone)), |
653 |
] |
654 |
|
655 |
|
656 |
class OpNodeQuery(OpCode): |
657 |
"""Compute the list of nodes."""
|
658 |
OP_PARAMS = [ |
659 |
_POutputFields, |
660 |
("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
|
661 |
("use_locking", False, ht.TBool), |
662 |
] |
663 |
|
664 |
|
665 |
class OpNodeQueryvols(OpCode): |
666 |
"""Get list of volumes on node."""
|
667 |
OP_PARAMS = [ |
668 |
_POutputFields, |
669 |
("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
|
670 |
] |
671 |
|
672 |
|
673 |
class OpNodeQueryStorage(OpCode): |
674 |
"""Get information on storage for node(s)."""
|
675 |
OP_PARAMS = [ |
676 |
_POutputFields, |
677 |
_PStorageType, |
678 |
("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
|
679 |
("name", None, ht.TMaybeString), |
680 |
] |
681 |
|
682 |
|
683 |
class OpNodeModifyStorage(OpCode): |
684 |
"""Modifies the properies of a storage unit"""
|
685 |
OP_PARAMS = [ |
686 |
_PNodeName, |
687 |
_PStorageType, |
688 |
("name", ht.NoDefault, ht.TNonEmptyString),
|
689 |
("changes", ht.NoDefault, ht.TDict),
|
690 |
] |
691 |
|
692 |
|
693 |
class OpRepairNodeStorage(OpCode): |
694 |
"""Repairs the volume group on a node."""
|
695 |
OP_DSC_FIELD = "node_name"
|
696 |
OP_PARAMS = [ |
697 |
_PNodeName, |
698 |
_PStorageType, |
699 |
("name", ht.NoDefault, ht.TNonEmptyString),
|
700 |
("ignore_consistency", False, ht.TBool), |
701 |
] |
702 |
|
703 |
|
704 |
class OpNodeSetParams(OpCode): |
705 |
"""Change the parameters of a node."""
|
706 |
OP_DSC_FIELD = "node_name"
|
707 |
OP_PARAMS = [ |
708 |
_PNodeName, |
709 |
_PForce, |
710 |
("master_candidate", None, ht.TMaybeBool), |
711 |
("offline", None, ht.TMaybeBool), |
712 |
("drained", None, ht.TMaybeBool), |
713 |
("auto_promote", False, ht.TBool), |
714 |
("master_capable", None, ht.TMaybeBool), |
715 |
("vm_capable", None, ht.TMaybeBool), |
716 |
("secondary_ip", None, ht.TMaybeString), |
717 |
("ndparams", None, ht.TOr(ht.TDict, ht.TNone)), |
718 |
("powered", None, ht.TMaybeBool), |
719 |
] |
720 |
|
721 |
|
722 |
class OpNodePowercycle(OpCode): |
723 |
"""Tries to powercycle a node."""
|
724 |
OP_DSC_FIELD = "node_name"
|
725 |
OP_PARAMS = [ |
726 |
_PNodeName, |
727 |
_PForce, |
728 |
] |
729 |
|
730 |
|
731 |
class OpNodeMigrate(OpCode): |
732 |
"""Migrate all instances from a node."""
|
733 |
OP_DSC_FIELD = "node_name"
|
734 |
OP_PARAMS = [ |
735 |
_PNodeName, |
736 |
_PMigrationMode, |
737 |
_PMigrationLive, |
738 |
] |
739 |
|
740 |
|
741 |
class OpNodeEvacStrategy(OpCode): |
742 |
"""Compute the evacuation strategy for a list of nodes."""
|
743 |
OP_DSC_FIELD = "nodes"
|
744 |
OP_PARAMS = [ |
745 |
("nodes", ht.NoDefault, ht.TListOf(ht.TNonEmptyString)),
|
746 |
("remote_node", None, ht.TMaybeString), |
747 |
("iallocator", None, ht.TMaybeString), |
748 |
] |
749 |
|
750 |
|
751 |
# instance opcodes
|
752 |
|
753 |
class OpInstanceCreate(OpCode): |
754 |
"""Create an instance.
|
755 |
|
756 |
@ivar instance_name: Instance name
|
757 |
@ivar mode: Instance creation mode (one of L{constants.INSTANCE_CREATE_MODES})
|
758 |
@ivar source_handshake: Signed handshake from source (remote import only)
|
759 |
@ivar source_x509_ca: Source X509 CA in PEM format (remote import only)
|
760 |
@ivar source_instance_name: Previous name of instance (remote import only)
|
761 |
@ivar source_shutdown_timeout: Shutdown timeout used for source instance
|
762 |
(remote import only)
|
763 |
|
764 |
"""
|
765 |
OP_DSC_FIELD = "instance_name"
|
766 |
OP_PARAMS = [ |
767 |
_PInstanceName, |
768 |
("beparams", ht.EmptyDict, ht.TDict),
|
769 |
("disks", ht.NoDefault, ht.TListOf(ht.TDict)),
|
770 |
("disk_template", ht.NoDefault, _CheckDiskTemplate),
|
771 |
("file_driver", None, ht.TOr(ht.TNone, ht.TElemOf(constants.FILE_DRIVER))), |
772 |
("file_storage_dir", None, ht.TMaybeString), |
773 |
("force_variant", False, ht.TBool), |
774 |
("hvparams", ht.EmptyDict, ht.TDict),
|
775 |
("hypervisor", None, ht.TMaybeString), |
776 |
("iallocator", None, ht.TMaybeString), |
777 |
("identify_defaults", False, ht.TBool), |
778 |
("ip_check", True, ht.TBool), |
779 |
("mode", ht.NoDefault, ht.TElemOf(constants.INSTANCE_CREATE_MODES)),
|
780 |
("name_check", True, ht.TBool), |
781 |
("nics", ht.NoDefault, ht.TListOf(ht.TDict)),
|
782 |
("no_install", None, ht.TMaybeBool), |
783 |
("osparams", ht.EmptyDict, ht.TDict),
|
784 |
("os_type", None, ht.TMaybeString), |
785 |
("pnode", None, ht.TMaybeString), |
786 |
("snode", None, ht.TMaybeString), |
787 |
("source_handshake", None, ht.TOr(ht.TList, ht.TNone)), |
788 |
("source_instance_name", None, ht.TMaybeString), |
789 |
("source_shutdown_timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT,
|
790 |
ht.TPositiveInt), |
791 |
("source_x509_ca", None, ht.TMaybeString), |
792 |
("src_node", None, ht.TMaybeString), |
793 |
("src_path", None, ht.TMaybeString), |
794 |
("start", True, ht.TBool), |
795 |
("wait_for_sync", True, ht.TBool), |
796 |
] |
797 |
|
798 |
|
799 |
class OpInstanceReinstall(OpCode): |
800 |
"""Reinstall an instance's OS."""
|
801 |
OP_DSC_FIELD = "instance_name"
|
802 |
OP_PARAMS = [ |
803 |
_PInstanceName, |
804 |
("os_type", None, ht.TMaybeString), |
805 |
("force_variant", False, ht.TBool), |
806 |
("osparams", None, ht.TOr(ht.TDict, ht.TNone)), |
807 |
] |
808 |
|
809 |
|
810 |
class OpInstanceRemove(OpCode): |
811 |
"""Remove an instance."""
|
812 |
OP_DSC_FIELD = "instance_name"
|
813 |
OP_PARAMS = [ |
814 |
_PInstanceName, |
815 |
_PShutdownTimeout, |
816 |
("ignore_failures", False, ht.TBool), |
817 |
] |
818 |
|
819 |
|
820 |
class OpInstanceRename(OpCode): |
821 |
"""Rename an instance."""
|
822 |
OP_PARAMS = [ |
823 |
_PInstanceName, |
824 |
("new_name", ht.NoDefault, ht.TNonEmptyString),
|
825 |
("ip_check", False, ht.TBool), |
826 |
("name_check", True, ht.TBool), |
827 |
] |
828 |
|
829 |
|
830 |
class OpInstanceStartup(OpCode): |
831 |
"""Startup an instance."""
|
832 |
OP_DSC_FIELD = "instance_name"
|
833 |
OP_PARAMS = [ |
834 |
_PInstanceName, |
835 |
_PForce, |
836 |
_PIgnoreOfflineNodes, |
837 |
("hvparams", ht.EmptyDict, ht.TDict),
|
838 |
("beparams", ht.EmptyDict, ht.TDict),
|
839 |
] |
840 |
|
841 |
|
842 |
class OpInstanceShutdown(OpCode): |
843 |
"""Shutdown an instance."""
|
844 |
OP_DSC_FIELD = "instance_name"
|
845 |
OP_PARAMS = [ |
846 |
_PInstanceName, |
847 |
_PIgnoreOfflineNodes, |
848 |
("timeout", constants.DEFAULT_SHUTDOWN_TIMEOUT, ht.TPositiveInt),
|
849 |
] |
850 |
|
851 |
|
852 |
class OpInstanceReboot(OpCode): |
853 |
"""Reboot an instance."""
|
854 |
OP_DSC_FIELD = "instance_name"
|
855 |
OP_PARAMS = [ |
856 |
_PInstanceName, |
857 |
_PShutdownTimeout, |
858 |
("ignore_secondaries", False, ht.TBool), |
859 |
("reboot_type", ht.NoDefault, ht.TElemOf(constants.REBOOT_TYPES)),
|
860 |
] |
861 |
|
862 |
|
863 |
class OpInstanceReplaceDisks(OpCode): |
864 |
"""Replace the disks of an instance."""
|
865 |
OP_DSC_FIELD = "instance_name"
|
866 |
OP_PARAMS = [ |
867 |
_PInstanceName, |
868 |
("mode", ht.NoDefault, ht.TElemOf(constants.REPLACE_MODES)),
|
869 |
("disks", ht.EmptyList, ht.TListOf(ht.TPositiveInt)),
|
870 |
("remote_node", None, ht.TMaybeString), |
871 |
("iallocator", None, ht.TMaybeString), |
872 |
("early_release", False, ht.TBool), |
873 |
] |
874 |
|
875 |
|
876 |
class OpInstanceFailover(OpCode): |
877 |
"""Failover an instance."""
|
878 |
OP_DSC_FIELD = "instance_name"
|
879 |
OP_PARAMS = [ |
880 |
_PInstanceName, |
881 |
_PShutdownTimeout, |
882 |
("ignore_consistency", False, ht.TBool), |
883 |
] |
884 |
|
885 |
|
886 |
class OpInstanceMigrate(OpCode): |
887 |
"""Migrate an instance.
|
888 |
|
889 |
This migrates (without shutting down an instance) to its secondary
|
890 |
node.
|
891 |
|
892 |
@ivar instance_name: the name of the instance
|
893 |
@ivar mode: the migration mode (live, non-live or None for auto)
|
894 |
|
895 |
"""
|
896 |
OP_DSC_FIELD = "instance_name"
|
897 |
OP_PARAMS = [ |
898 |
_PInstanceName, |
899 |
_PMigrationMode, |
900 |
_PMigrationLive, |
901 |
("cleanup", False, ht.TBool), |
902 |
] |
903 |
|
904 |
|
905 |
class OpInstanceMove(OpCode): |
906 |
"""Move an instance.
|
907 |
|
908 |
This move (with shutting down an instance and data copying) to an
|
909 |
arbitrary node.
|
910 |
|
911 |
@ivar instance_name: the name of the instance
|
912 |
@ivar target_node: the destination node
|
913 |
|
914 |
"""
|
915 |
OP_DSC_FIELD = "instance_name"
|
916 |
OP_PARAMS = [ |
917 |
_PInstanceName, |
918 |
_PShutdownTimeout, |
919 |
("target_node", ht.NoDefault, ht.TNonEmptyString),
|
920 |
] |
921 |
|
922 |
|
923 |
class OpInstanceConsole(OpCode): |
924 |
"""Connect to an instance's console."""
|
925 |
OP_DSC_FIELD = "instance_name"
|
926 |
OP_PARAMS = [ |
927 |
_PInstanceName |
928 |
] |
929 |
|
930 |
|
931 |
class OpInstanceActivateDisks(OpCode): |
932 |
"""Activate an instance's disks."""
|
933 |
OP_DSC_FIELD = "instance_name"
|
934 |
OP_PARAMS = [ |
935 |
_PInstanceName, |
936 |
("ignore_size", False, ht.TBool), |
937 |
] |
938 |
|
939 |
|
940 |
class OpInstanceDeactivateDisks(OpCode): |
941 |
"""Deactivate an instance's disks."""
|
942 |
OP_DSC_FIELD = "instance_name"
|
943 |
OP_PARAMS = [ |
944 |
_PInstanceName |
945 |
] |
946 |
|
947 |
|
948 |
class OpInstanceRecreateDisks(OpCode): |
949 |
"""Deactivate an instance's disks."""
|
950 |
OP_DSC_FIELD = "instance_name"
|
951 |
OP_PARAMS = [ |
952 |
_PInstanceName, |
953 |
("disks", ht.EmptyList, ht.TListOf(ht.TPositiveInt)),
|
954 |
] |
955 |
|
956 |
|
957 |
class OpInstanceQuery(OpCode): |
958 |
"""Compute the list of instances."""
|
959 |
OP_PARAMS = [ |
960 |
_POutputFields, |
961 |
("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
|
962 |
("use_locking", False, ht.TBool), |
963 |
] |
964 |
|
965 |
|
966 |
class OpInstanceQueryData(OpCode): |
967 |
"""Compute the run-time status of instances."""
|
968 |
OP_PARAMS = [ |
969 |
("instances", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
|
970 |
("static", False, ht.TBool), |
971 |
] |
972 |
|
973 |
|
974 |
class OpInstanceSetParams(OpCode): |
975 |
"""Change the parameters of an instance."""
|
976 |
OP_DSC_FIELD = "instance_name"
|
977 |
OP_PARAMS = [ |
978 |
_PInstanceName, |
979 |
_PForce, |
980 |
("nics", ht.EmptyList, ht.TList),
|
981 |
("disks", ht.EmptyList, ht.TList),
|
982 |
("beparams", ht.EmptyDict, ht.TDict),
|
983 |
("hvparams", ht.EmptyDict, ht.TDict),
|
984 |
("disk_template", None, ht.TOr(ht.TNone, _CheckDiskTemplate)), |
985 |
("remote_node", None, ht.TMaybeString), |
986 |
("os_name", None, ht.TMaybeString), |
987 |
("force_variant", False, ht.TBool), |
988 |
("osparams", None, ht.TOr(ht.TDict, ht.TNone)), |
989 |
] |
990 |
|
991 |
|
992 |
class OpInstanceGrowDisk(OpCode): |
993 |
"""Grow a disk of an instance."""
|
994 |
OP_DSC_FIELD = "instance_name"
|
995 |
OP_PARAMS = [ |
996 |
_PInstanceName, |
997 |
("disk", ht.NoDefault, ht.TInt),
|
998 |
("amount", ht.NoDefault, ht.TInt),
|
999 |
("wait_for_sync", True, ht.TBool), |
1000 |
] |
1001 |
|
1002 |
|
1003 |
# Node group opcodes
|
1004 |
|
1005 |
class OpGroupAdd(OpCode): |
1006 |
"""Add a node group to the cluster."""
|
1007 |
OP_DSC_FIELD = "group_name"
|
1008 |
OP_PARAMS = [ |
1009 |
_PGroupName, |
1010 |
("ndparams", None, ht.TOr(ht.TDict, ht.TNone)), |
1011 |
("alloc_policy", None, |
1012 |
ht.TOr(ht.TNone, ht.TElemOf(constants.VALID_ALLOC_POLICIES))), |
1013 |
] |
1014 |
|
1015 |
|
1016 |
class OpGroupAssignNodes(OpCode): |
1017 |
"""Assign nodes to a node group."""
|
1018 |
OP_DSC_FIELD = "group_name"
|
1019 |
OP_PARAMS = [ |
1020 |
_PGroupName, |
1021 |
_PForce, |
1022 |
("nodes", ht.NoDefault, ht.TListOf(ht.TNonEmptyString)),
|
1023 |
] |
1024 |
|
1025 |
|
1026 |
class OpGroupQuery(OpCode): |
1027 |
"""Compute the list of node groups."""
|
1028 |
OP_PARAMS = [ |
1029 |
_POutputFields, |
1030 |
("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
|
1031 |
] |
1032 |
|
1033 |
|
1034 |
class OpGroupSetParams(OpCode): |
1035 |
"""Change the parameters of a node group."""
|
1036 |
OP_DSC_FIELD = "group_name"
|
1037 |
OP_PARAMS = [ |
1038 |
_PGroupName, |
1039 |
("ndparams", None, ht.TOr(ht.TDict, ht.TNone)), |
1040 |
("alloc_policy", None, ht.TOr(ht.TNone, |
1041 |
ht.TElemOf(constants.VALID_ALLOC_POLICIES))), |
1042 |
] |
1043 |
|
1044 |
|
1045 |
class OpGroupRemove(OpCode): |
1046 |
"""Remove a node group from the cluster."""
|
1047 |
OP_DSC_FIELD = "group_name"
|
1048 |
OP_PARAMS = [ |
1049 |
_PGroupName, |
1050 |
] |
1051 |
|
1052 |
|
1053 |
class OpGroupRename(OpCode): |
1054 |
"""Rename a node group in the cluster."""
|
1055 |
OP_DSC_FIELD = "old_name"
|
1056 |
OP_PARAMS = [ |
1057 |
("old_name", ht.NoDefault, ht.TNonEmptyString),
|
1058 |
("new_name", ht.NoDefault, ht.TNonEmptyString),
|
1059 |
] |
1060 |
|
1061 |
|
1062 |
# OS opcodes
|
1063 |
class OpOsDiagnose(OpCode): |
1064 |
"""Compute the list of guest operating systems."""
|
1065 |
OP_PARAMS = [ |
1066 |
_POutputFields, |
1067 |
("names", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
|
1068 |
] |
1069 |
|
1070 |
|
1071 |
# Exports opcodes
|
1072 |
class OpBackupQuery(OpCode): |
1073 |
"""Compute the list of exported images."""
|
1074 |
OP_PARAMS = [ |
1075 |
("nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
|
1076 |
("use_locking", False, ht.TBool), |
1077 |
] |
1078 |
|
1079 |
|
1080 |
class OpBackupPrepare(OpCode): |
1081 |
"""Prepares an instance export.
|
1082 |
|
1083 |
@ivar instance_name: Instance name
|
1084 |
@ivar mode: Export mode (one of L{constants.EXPORT_MODES})
|
1085 |
|
1086 |
"""
|
1087 |
OP_DSC_FIELD = "instance_name"
|
1088 |
OP_PARAMS = [ |
1089 |
_PInstanceName, |
1090 |
("mode", ht.NoDefault, ht.TElemOf(constants.EXPORT_MODES)),
|
1091 |
] |
1092 |
|
1093 |
|
1094 |
class OpBackupExport(OpCode): |
1095 |
"""Export an instance.
|
1096 |
|
1097 |
For local exports, the export destination is the node name. For remote
|
1098 |
exports, the export destination is a list of tuples, each consisting of
|
1099 |
hostname/IP address, port, HMAC and HMAC salt. The HMAC is calculated using
|
1100 |
the cluster domain secret over the value "${index}:${hostname}:${port}". The
|
1101 |
destination X509 CA must be a signed certificate.
|
1102 |
|
1103 |
@ivar mode: Export mode (one of L{constants.EXPORT_MODES})
|
1104 |
@ivar target_node: Export destination
|
1105 |
@ivar x509_key_name: X509 key to use (remote export only)
|
1106 |
@ivar destination_x509_ca: Destination X509 CA in PEM format (remote export
|
1107 |
only)
|
1108 |
|
1109 |
"""
|
1110 |
OP_DSC_FIELD = "instance_name"
|
1111 |
OP_PARAMS = [ |
1112 |
_PInstanceName, |
1113 |
_PShutdownTimeout, |
1114 |
# TODO: Rename target_node as it changes meaning for different export modes
|
1115 |
# (e.g. "destination")
|
1116 |
("target_node", ht.NoDefault, ht.TOr(ht.TNonEmptyString, ht.TList)),
|
1117 |
("shutdown", True, ht.TBool), |
1118 |
("remove_instance", False, ht.TBool), |
1119 |
("ignore_remove_failures", False, ht.TBool), |
1120 |
("mode", constants.EXPORT_MODE_LOCAL, ht.TElemOf(constants.EXPORT_MODES)),
|
1121 |
("x509_key_name", None, ht.TOr(ht.TList, ht.TNone)), |
1122 |
("destination_x509_ca", None, ht.TMaybeString), |
1123 |
] |
1124 |
|
1125 |
|
1126 |
class OpBackupRemove(OpCode): |
1127 |
"""Remove an instance's export."""
|
1128 |
OP_DSC_FIELD = "instance_name"
|
1129 |
OP_PARAMS = [ |
1130 |
_PInstanceName, |
1131 |
] |
1132 |
|
1133 |
|
1134 |
# Tags opcodes
|
1135 |
class OpTagsGet(OpCode): |
1136 |
"""Returns the tags of the given object."""
|
1137 |
OP_DSC_FIELD = "name"
|
1138 |
OP_PARAMS = [ |
1139 |
_PTagKind, |
1140 |
# Name is only meaningful for nodes and instances
|
1141 |
("name", ht.NoDefault, ht.TMaybeString),
|
1142 |
] |
1143 |
|
1144 |
|
1145 |
class OpTagsSearch(OpCode): |
1146 |
"""Searches the tags in the cluster for a given pattern."""
|
1147 |
OP_DSC_FIELD = "pattern"
|
1148 |
OP_PARAMS = [ |
1149 |
("pattern", ht.NoDefault, ht.TNonEmptyString),
|
1150 |
] |
1151 |
|
1152 |
|
1153 |
class OpTagsSet(OpCode): |
1154 |
"""Add a list of tags on a given object."""
|
1155 |
OP_PARAMS = [ |
1156 |
_PTagKind, |
1157 |
_PTags, |
1158 |
# Name is only meaningful for nodes and instances
|
1159 |
("name", ht.NoDefault, ht.TMaybeString),
|
1160 |
] |
1161 |
|
1162 |
|
1163 |
class OpTagsDel(OpCode): |
1164 |
"""Remove a list of tags from a given object."""
|
1165 |
OP_PARAMS = [ |
1166 |
_PTagKind, |
1167 |
_PTags, |
1168 |
# Name is only meaningful for nodes and instances
|
1169 |
("name", ht.NoDefault, ht.TMaybeString),
|
1170 |
] |
1171 |
|
1172 |
# Test opcodes
|
1173 |
class OpTestDelay(OpCode): |
1174 |
"""Sleeps for a configured amount of time.
|
1175 |
|
1176 |
This is used just for debugging and testing.
|
1177 |
|
1178 |
Parameters:
|
1179 |
- duration: the time to sleep
|
1180 |
- on_master: if true, sleep on the master
|
1181 |
- on_nodes: list of nodes in which to sleep
|
1182 |
|
1183 |
If the on_master parameter is true, it will execute a sleep on the
|
1184 |
master (before any node sleep).
|
1185 |
|
1186 |
If the on_nodes list is not empty, it will sleep on those nodes
|
1187 |
(after the sleep on the master, if that is enabled).
|
1188 |
|
1189 |
As an additional feature, the case of duration < 0 will be reported
|
1190 |
as an execution error, so this opcode can be used as a failure
|
1191 |
generator. The case of duration == 0 will not be treated specially.
|
1192 |
|
1193 |
"""
|
1194 |
OP_DSC_FIELD = "duration"
|
1195 |
OP_PARAMS = [ |
1196 |
("duration", ht.NoDefault, ht.TFloat),
|
1197 |
("on_master", True, ht.TBool), |
1198 |
("on_nodes", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
|
1199 |
("repeat", 0, ht.TPositiveInt) |
1200 |
] |
1201 |
|
1202 |
|
1203 |
class OpTestAllocator(OpCode): |
1204 |
"""Allocator framework testing.
|
1205 |
|
1206 |
This opcode has two modes:
|
1207 |
- gather and return allocator input for a given mode (allocate new
|
1208 |
or replace secondary) and a given instance definition (direction
|
1209 |
'in')
|
1210 |
- run a selected allocator for a given operation (as above) and
|
1211 |
return the allocator output (direction 'out')
|
1212 |
|
1213 |
"""
|
1214 |
OP_DSC_FIELD = "allocator"
|
1215 |
OP_PARAMS = [ |
1216 |
("direction", ht.NoDefault,
|
1217 |
ht.TElemOf(constants.VALID_IALLOCATOR_DIRECTIONS)), |
1218 |
("mode", ht.NoDefault, ht.TElemOf(constants.VALID_IALLOCATOR_MODES)),
|
1219 |
("name", ht.NoDefault, ht.TNonEmptyString),
|
1220 |
("nics", ht.NoDefault, ht.TOr(ht.TNone, ht.TListOf(
|
1221 |
ht.TDictOf(ht.TElemOf(["mac", "ip", "bridge"]), |
1222 |
ht.TOr(ht.TNone, ht.TNonEmptyString))))), |
1223 |
("disks", ht.NoDefault, ht.TOr(ht.TNone, ht.TList)),
|
1224 |
("hypervisor", None, ht.TMaybeString), |
1225 |
("allocator", None, ht.TMaybeString), |
1226 |
("tags", ht.EmptyList, ht.TListOf(ht.TNonEmptyString)),
|
1227 |
("mem_size", None, ht.TOr(ht.TNone, ht.TPositiveInt)), |
1228 |
("vcpus", None, ht.TOr(ht.TNone, ht.TPositiveInt)), |
1229 |
("os", None, ht.TMaybeString), |
1230 |
("disk_template", None, ht.TMaybeString), |
1231 |
("evac_nodes", None, ht.TOr(ht.TNone, ht.TListOf(ht.TNonEmptyString))), |
1232 |
] |
1233 |
|
1234 |
|
1235 |
class OpTestJqueue(OpCode): |
1236 |
"""Utility opcode to test some aspects of the job queue.
|
1237 |
|
1238 |
"""
|
1239 |
OP_PARAMS = [ |
1240 |
("notify_waitlock", False, ht.TBool), |
1241 |
("notify_exec", False, ht.TBool), |
1242 |
("log_messages", ht.EmptyList, ht.TListOf(ht.TString)),
|
1243 |
("fail", False, ht.TBool), |
1244 |
] |
1245 |
|
1246 |
|
1247 |
class OpTestDummy(OpCode): |
1248 |
"""Utility opcode used by unittests.
|
1249 |
|
1250 |
"""
|
1251 |
OP_PARAMS = [ |
1252 |
("result", ht.NoDefault, ht.NoType),
|
1253 |
("messages", ht.NoDefault, ht.NoType),
|
1254 |
("fail", ht.NoDefault, ht.NoType),
|
1255 |
] |
1256 |
WITH_LU = False
|
1257 |
|
1258 |
|
1259 |
def _GetOpList(): |
1260 |
"""Returns list of all defined opcodes.
|
1261 |
|
1262 |
Does not eliminate duplicates by C{OP_ID}.
|
1263 |
|
1264 |
"""
|
1265 |
return [v for v in globals().values() |
1266 |
if (isinstance(v, type) and issubclass(v, OpCode) and |
1267 |
hasattr(v, "OP_ID") and v is not OpCode)] |
1268 |
|
1269 |
|
1270 |
OP_MAPPING = dict((v.OP_ID, v) for v in _GetOpList()) |