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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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"""Transportable objects for Ganeti.
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This module provides small, mostly data-only objects which are safe to
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pass to and from external parties.
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"""
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# pylint: disable=E0203,W0201,R0902
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# E0203: Access to member %r before its definition, since we use
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# objects.py which doesn't explicitely initialise its members
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# W0201: Attribute '%s' defined outside __init__
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# R0902: Allow instances of these objects to have more than 20 attributes
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import ConfigParser |
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import re |
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import copy |
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import time |
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from cStringIO import StringIO |
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from ganeti import errors |
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from ganeti import constants |
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from ganeti import netutils |
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from socket import AF_INET |
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__all__ = ["ConfigObject", "ConfigData", "NIC", "Disk", "Instance", |
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"OS", "Node", "NodeGroup", "Cluster", "FillDict"] |
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_TIMESTAMPS = ["ctime", "mtime"] |
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_UUID = ["uuid"]
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def FillDict(defaults_dict, custom_dict, skip_keys=None): |
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"""Basic function to apply settings on top a default dict.
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@type defaults_dict: dict
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@param defaults_dict: dictionary holding the default values
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@type custom_dict: dict
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@param custom_dict: dictionary holding customized value
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@type skip_keys: list
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@param skip_keys: which keys not to fill
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@rtype: dict
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@return: dict with the 'full' values
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"""
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ret_dict = copy.deepcopy(defaults_dict) |
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ret_dict.update(custom_dict) |
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if skip_keys:
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for k in skip_keys: |
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try:
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del ret_dict[k]
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except KeyError: |
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pass
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return ret_dict
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def FillDictOfDicts(defaults_dict, custom_dict, skip_keys=None): |
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"""Run FillDict for each key in dictionary.
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"""
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ret_dict = {} |
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for key in defaults_dict.keys(): |
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ret_dict[key] = FillDict(defaults_dict[key], |
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custom_dict.get(key, {}), |
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skip_keys=skip_keys) |
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return ret_dict
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def UpgradeGroupedParams(target, defaults): |
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"""Update all groups for the target parameter.
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@type target: dict of dicts
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@param target: {group: {parameter: value}}
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@type defaults: dict
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@param defaults: default parameter values
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"""
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if target is None: |
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target = {constants.PP_DEFAULT: defaults} |
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else:
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for group in target: |
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target[group] = FillDict(defaults, target[group]) |
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return target
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def UpgradeBeParams(target): |
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"""Update the be parameters dict to the new format.
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@type target: dict
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@param target: "be" parameters dict
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"""
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if constants.BE_MEMORY in target: |
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memory = target[constants.BE_MEMORY] |
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target[constants.BE_MAXMEM] = memory |
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target[constants.BE_MINMEM] = memory |
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del target[constants.BE_MEMORY]
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def UpgradeDiskParams(diskparams): |
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"""Upgrade the disk parameters.
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@type diskparams: dict
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@param diskparams: disk parameters to upgrade
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@rtype: dict
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@return: the upgraded disk parameters dit
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"""
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result = dict()
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if diskparams is None: |
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result = constants.DISK_DT_DEFAULTS.copy() |
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else:
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# Update the disk parameter values for each disk template.
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# The code iterates over constants.DISK_TEMPLATES because new templates
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# might have been added.
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for template in constants.DISK_TEMPLATES: |
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if template not in diskparams: |
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result[template] = constants.DISK_DT_DEFAULTS[template].copy() |
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else:
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result[template] = FillDict(constants.DISK_DT_DEFAULTS[template], |
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diskparams[template]) |
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return result
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def MakeEmptyIPolicy(): |
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"""Create empty IPolicy dictionary.
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"""
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return dict([ |
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(constants.MIN_ISPECS, dict()),
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(constants.MAX_ISPECS, dict()),
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(constants.STD_ISPECS, dict()),
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]) |
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class ConfigObject(object): |
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"""A generic config object.
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It has the following properties:
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- provides somewhat safe recursive unpickling and pickling for its classes
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- unset attributes which are defined in slots are always returned
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as None instead of raising an error
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Classes derived from this must always declare __slots__ (we use many
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config objects and the memory reduction is useful)
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"""
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__slots__ = [] |
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def __init__(self, **kwargs): |
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for k, v in kwargs.iteritems(): |
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setattr(self, k, v) |
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def __getattr__(self, name): |
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if name not in self._all_slots(): |
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raise AttributeError("Invalid object attribute %s.%s" % |
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(type(self).__name__, name)) |
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return None |
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def __setstate__(self, state): |
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slots = self._all_slots()
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for name in state: |
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if name in slots: |
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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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def ToDict(self): |
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"""Convert to a dict holding only standard python types.
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The generic routine just dumps all of this object's attributes in
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a dict. It does not work if the class has children who are
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ConfigObjects themselves (e.g. the nics list in an Instance), in
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which case the object should subclass the function in order to
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make sure all objects returned are only standard python types.
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"""
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result = {} |
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for name in self._all_slots(): |
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value = getattr(self, name, None) |
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if value is not None: |
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result[name] = value |
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return result
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__getstate__ = ToDict |
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@classmethod
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def FromDict(cls, val): |
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"""Create an object from a dictionary.
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This generic routine takes a dict, instantiates a new instance of
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the given class, and sets attributes based on the dict content.
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As for `ToDict`, this does not work if the class has children
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who are ConfigObjects themselves (e.g. the nics list in an
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Instance), in which case the object should subclass the function
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and alter the objects.
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"""
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if not isinstance(val, dict): |
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raise errors.ConfigurationError("Invalid object passed to FromDict:" |
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" expected dict, got %s" % type(val)) |
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val_str = dict([(str(k), v) for k, v in val.iteritems()]) |
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obj = cls(**val_str) # pylint: disable=W0142
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return obj
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@staticmethod
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def _ContainerToDicts(container): |
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"""Convert the elements of a container to standard python types.
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This method converts a container with elements derived from
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ConfigData to standard python types. If the container is a dict,
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we don't touch the keys, only the values.
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"""
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if isinstance(container, dict): |
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ret = dict([(k, v.ToDict()) for k, v in container.iteritems()]) |
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elif isinstance(container, (list, tuple, set, frozenset)): |
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ret = [elem.ToDict() for elem in container] |
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else:
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raise TypeError("Invalid type %s passed to _ContainerToDicts" % |
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type(container))
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return ret
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@staticmethod
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def _ContainerFromDicts(source, c_type, e_type): |
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"""Convert a container from standard python types.
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This method converts a container with standard python types to
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ConfigData objects. If the container is a dict, we don't touch the
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keys, only the values.
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"""
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if not isinstance(c_type, type): |
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raise TypeError("Container type %s passed to _ContainerFromDicts is" |
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" not a type" % type(c_type)) |
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if source is None: |
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source = c_type() |
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if c_type is dict: |
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ret = dict([(k, e_type.FromDict(v)) for k, v in source.iteritems()]) |
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elif c_type in (list, tuple, set, frozenset): |
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ret = c_type([e_type.FromDict(elem) for elem in source]) |
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else:
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raise TypeError("Invalid container type %s passed to" |
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" _ContainerFromDicts" % c_type)
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return ret
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def Copy(self): |
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"""Makes a deep copy of the current object and its children.
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"""
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dict_form = self.ToDict()
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clone_obj = self.__class__.FromDict(dict_form)
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return clone_obj
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def __repr__(self): |
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"""Implement __repr__ for ConfigObjects."""
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return repr(self.ToDict()) |
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def UpgradeConfig(self): |
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"""Fill defaults for missing configuration values.
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This method will be called at configuration load time, and its
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implementation will be object dependent.
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"""
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pass
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class TaggableObject(ConfigObject): |
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"""An generic class supporting tags.
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"""
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__slots__ = ["tags"]
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VALID_TAG_RE = re.compile("^[\w.+*/:@-]+$")
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@classmethod
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def ValidateTag(cls, tag): |
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"""Check if a tag is valid.
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If the tag is invalid, an errors.TagError will be raised. The
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function has no return value.
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"""
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if not isinstance(tag, basestring): |
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raise errors.TagError("Invalid tag type (not a string)") |
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if len(tag) > constants.MAX_TAG_LEN: |
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raise errors.TagError("Tag too long (>%d characters)" % |
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constants.MAX_TAG_LEN) |
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if not tag: |
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raise errors.TagError("Tags cannot be empty") |
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if not cls.VALID_TAG_RE.match(tag): |
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raise errors.TagError("Tag contains invalid characters") |
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def GetTags(self): |
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"""Return the tags list.
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"""
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tags = getattr(self, "tags", None) |
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if tags is None: |
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tags = self.tags = set() |
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return tags
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def AddTag(self, tag): |
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"""Add a new tag.
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"""
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self.ValidateTag(tag)
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tags = self.GetTags()
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if len(tags) >= constants.MAX_TAGS_PER_OBJ: |
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raise errors.TagError("Too many tags") |
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self.GetTags().add(tag)
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def RemoveTag(self, tag): |
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"""Remove a tag.
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"""
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self.ValidateTag(tag)
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tags = self.GetTags()
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try:
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tags.remove(tag) |
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except KeyError: |
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raise errors.TagError("Tag not found") |
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def ToDict(self): |
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"""Taggable-object-specific conversion to standard python types.
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This replaces the tags set with a list.
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"""
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bo = super(TaggableObject, self).ToDict() |
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tags = bo.get("tags", None) |
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if isinstance(tags, set): |
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bo["tags"] = list(tags) |
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return bo
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@classmethod
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def FromDict(cls, val): |
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"""Custom function for instances.
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"""
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obj = super(TaggableObject, cls).FromDict(val)
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if hasattr(obj, "tags") and isinstance(obj.tags, list): |
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obj.tags = set(obj.tags)
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return obj
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class MasterNetworkParameters(ConfigObject): |
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"""Network configuration parameters for the master
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@ivar name: master name
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@ivar ip: master IP
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@ivar netmask: master netmask
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@ivar netdev: master network device
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@ivar ip_family: master IP family
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"""
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__slots__ = [ |
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"name",
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"ip",
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"netmask",
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"netdev",
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"ip_family"
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] |
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class ConfigData(ConfigObject): |
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"""Top-level config object."""
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__slots__ = [ |
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"version",
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"cluster",
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"nodes",
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"nodegroups",
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"instances",
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"serial_no",
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] + _TIMESTAMPS |
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def ToDict(self): |
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"""Custom function for top-level config data.
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This just replaces the list of instances, nodes and the cluster
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with standard python types.
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"""
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mydict = super(ConfigData, self).ToDict() |
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mydict["cluster"] = mydict["cluster"].ToDict() |
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for key in "nodes", "instances", "nodegroups": |
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mydict[key] = self._ContainerToDicts(mydict[key])
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return mydict
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@classmethod
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def FromDict(cls, val): |
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"""Custom function for top-level config data
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"""
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obj = super(ConfigData, cls).FromDict(val)
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obj.cluster = Cluster.FromDict(obj.cluster) |
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obj.nodes = cls._ContainerFromDicts(obj.nodes, dict, Node)
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obj.instances = cls._ContainerFromDicts(obj.instances, dict, Instance)
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obj.nodegroups = cls._ContainerFromDicts(obj.nodegroups, dict, NodeGroup)
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return obj
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def HasAnyDiskOfType(self, dev_type): |
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"""Check if in there is at disk of the given type in the configuration.
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@type dev_type: L{constants.LDS_BLOCK}
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@param dev_type: the type to look for
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@rtype: boolean
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@return: boolean indicating if a disk of the given type was found or not
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"""
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for instance in self.instances.values(): |
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for disk in instance.disks: |
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if disk.IsBasedOnDiskType(dev_type):
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return True |
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return False |
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def UpgradeConfig(self): |
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"""Fill defaults for missing configuration values.
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"""
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self.cluster.UpgradeConfig()
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for node in self.nodes.values(): |
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node.UpgradeConfig() |
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for instance in self.instances.values(): |
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instance.UpgradeConfig() |
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if self.nodegroups is None: |
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self.nodegroups = {}
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for nodegroup in self.nodegroups.values(): |
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nodegroup.UpgradeConfig() |
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if self.cluster.drbd_usermode_helper is None: |
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# To decide if we set an helper let's check if at least one instance has
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# a DRBD disk. This does not cover all the possible scenarios but it
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# gives a good approximation.
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if self.HasAnyDiskOfType(constants.LD_DRBD8): |
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self.cluster.drbd_usermode_helper = constants.DEFAULT_DRBD_HELPER
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|
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|
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class NIC(ConfigObject): |
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"""Config object representing a network card."""
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__slots__ = ["mac", "ip", "nicparams"] |
479 |
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@classmethod
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def CheckParameterSyntax(cls, nicparams): |
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"""Check the given parameters for validity.
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483 |
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@type nicparams: dict
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@param nicparams: dictionary with parameter names/value
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@raise errors.ConfigurationError: when a parameter is not valid
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"""
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if (nicparams[constants.NIC_MODE] not in constants.NIC_VALID_MODES and |
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nicparams[constants.NIC_MODE] != constants.VALUE_AUTO): |
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err = "Invalid nic mode: %s" % nicparams[constants.NIC_MODE]
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raise errors.ConfigurationError(err)
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|
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if (nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED and |
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not nicparams[constants.NIC_LINK]):
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err = "Missing bridged nic link"
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raise errors.ConfigurationError(err)
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class Disk(ConfigObject): |
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"""Config object representing a block device."""
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__slots__ = ["dev_type", "logical_id", "physical_id", |
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"children", "iv_name", "size", "mode", "params"] |
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def CreateOnSecondary(self): |
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"""Test if this device needs to be created on a secondary node."""
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return self.dev_type in (constants.LD_DRBD8, constants.LD_LV) |
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def AssembleOnSecondary(self): |
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"""Test if this device needs to be assembled on a secondary node."""
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return self.dev_type in (constants.LD_DRBD8, constants.LD_LV) |
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def OpenOnSecondary(self): |
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"""Test if this device needs to be opened on a secondary node."""
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return self.dev_type in (constants.LD_LV,) |
516 |
|
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def StaticDevPath(self): |
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"""Return the device path if this device type has a static one.
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|
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Some devices (LVM for example) live always at the same /dev/ path,
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irrespective of their status. For such devices, we return this
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path, for others we return None.
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@warning: The path returned is not a normalized pathname; callers
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should check that it is a valid path.
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"""
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if self.dev_type == constants.LD_LV: |
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return "/dev/%s/%s" % (self.logical_id[0], self.logical_id[1]) |
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elif self.dev_type == constants.LD_BLOCKDEV: |
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return self.logical_id[1] |
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return None |
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|
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def ChildrenNeeded(self): |
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"""Compute the needed number of children for activation.
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|
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This method will return either -1 (all children) or a positive
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number denoting the minimum number of children needed for
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activation (only mirrored devices will usually return >=0).
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|
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Currently, only DRBD8 supports diskless activation (therefore we
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return 0), for all other we keep the previous semantics and return
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-1.
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|
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"""
|
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if self.dev_type == constants.LD_DRBD8: |
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return 0 |
548 |
return -1 |
549 |
|
550 |
def IsBasedOnDiskType(self, dev_type): |
551 |
"""Check if the disk or its children are based on the given type.
|
552 |
|
553 |
@type dev_type: L{constants.LDS_BLOCK}
|
554 |
@param dev_type: the type to look for
|
555 |
@rtype: boolean
|
556 |
@return: boolean indicating if a device of the given type was found or not
|
557 |
|
558 |
"""
|
559 |
if self.children: |
560 |
for child in self.children: |
561 |
if child.IsBasedOnDiskType(dev_type):
|
562 |
return True |
563 |
return self.dev_type == dev_type |
564 |
|
565 |
def GetNodes(self, node): |
566 |
"""This function returns the nodes this device lives on.
|
567 |
|
568 |
Given the node on which the parent of the device lives on (or, in
|
569 |
case of a top-level device, the primary node of the devices'
|
570 |
instance), this function will return a list of nodes on which this
|
571 |
devices needs to (or can) be assembled.
|
572 |
|
573 |
"""
|
574 |
if self.dev_type in [constants.LD_LV, constants.LD_FILE, |
575 |
constants.LD_BLOCKDEV]: |
576 |
result = [node] |
577 |
elif self.dev_type in constants.LDS_DRBD: |
578 |
result = [self.logical_id[0], self.logical_id[1]] |
579 |
if node not in result: |
580 |
raise errors.ConfigurationError("DRBD device passed unknown node") |
581 |
else:
|
582 |
raise errors.ProgrammerError("Unhandled device type %s" % self.dev_type) |
583 |
return result
|
584 |
|
585 |
def ComputeNodeTree(self, parent_node): |
586 |
"""Compute the node/disk tree for this disk and its children.
|
587 |
|
588 |
This method, given the node on which the parent disk lives, will
|
589 |
return the list of all (node, disk) pairs which describe the disk
|
590 |
tree in the most compact way. For example, a drbd/lvm stack
|
591 |
will be returned as (primary_node, drbd) and (secondary_node, drbd)
|
592 |
which represents all the top-level devices on the nodes.
|
593 |
|
594 |
"""
|
595 |
my_nodes = self.GetNodes(parent_node)
|
596 |
result = [(node, self) for node in my_nodes] |
597 |
if not self.children: |
598 |
# leaf device
|
599 |
return result
|
600 |
for node in my_nodes: |
601 |
for child in self.children: |
602 |
child_result = child.ComputeNodeTree(node) |
603 |
if len(child_result) == 1: |
604 |
# child (and all its descendants) is simple, doesn't split
|
605 |
# over multiple hosts, so we don't need to describe it, our
|
606 |
# own entry for this node describes it completely
|
607 |
continue
|
608 |
else:
|
609 |
# check if child nodes differ from my nodes; note that
|
610 |
# subdisk can differ from the child itself, and be instead
|
611 |
# one of its descendants
|
612 |
for subnode, subdisk in child_result: |
613 |
if subnode not in my_nodes: |
614 |
result.append((subnode, subdisk)) |
615 |
# otherwise child is under our own node, so we ignore this
|
616 |
# entry (but probably the other results in the list will
|
617 |
# be different)
|
618 |
return result
|
619 |
|
620 |
def ComputeGrowth(self, amount): |
621 |
"""Compute the per-VG growth requirements.
|
622 |
|
623 |
This only works for VG-based disks.
|
624 |
|
625 |
@type amount: integer
|
626 |
@param amount: the desired increase in (user-visible) disk space
|
627 |
@rtype: dict
|
628 |
@return: a dictionary of volume-groups and the required size
|
629 |
|
630 |
"""
|
631 |
if self.dev_type == constants.LD_LV: |
632 |
return {self.logical_id[0]: amount} |
633 |
elif self.dev_type == constants.LD_DRBD8: |
634 |
if self.children: |
635 |
return self.children[0].ComputeGrowth(amount) |
636 |
else:
|
637 |
return {}
|
638 |
else:
|
639 |
# Other disk types do not require VG space
|
640 |
return {}
|
641 |
|
642 |
def RecordGrow(self, amount): |
643 |
"""Update the size of this disk after growth.
|
644 |
|
645 |
This method recurses over the disks's children and updates their
|
646 |
size correspondigly. The method needs to be kept in sync with the
|
647 |
actual algorithms from bdev.
|
648 |
|
649 |
"""
|
650 |
if self.dev_type in (constants.LD_LV, constants.LD_FILE): |
651 |
self.size += amount
|
652 |
elif self.dev_type == constants.LD_DRBD8: |
653 |
if self.children: |
654 |
self.children[0].RecordGrow(amount) |
655 |
self.size += amount
|
656 |
else:
|
657 |
raise errors.ProgrammerError("Disk.RecordGrow called for unsupported" |
658 |
" disk type %s" % self.dev_type) |
659 |
|
660 |
def UnsetSize(self): |
661 |
"""Sets recursively the size to zero for the disk and its children.
|
662 |
|
663 |
"""
|
664 |
if self.children: |
665 |
for child in self.children: |
666 |
child.UnsetSize() |
667 |
self.size = 0 |
668 |
|
669 |
def SetPhysicalID(self, target_node, nodes_ip): |
670 |
"""Convert the logical ID to the physical ID.
|
671 |
|
672 |
This is used only for drbd, which needs ip/port configuration.
|
673 |
|
674 |
The routine descends down and updates its children also, because
|
675 |
this helps when the only the top device is passed to the remote
|
676 |
node.
|
677 |
|
678 |
Arguments:
|
679 |
- target_node: the node we wish to configure for
|
680 |
- nodes_ip: a mapping of node name to ip
|
681 |
|
682 |
The target_node must exist in in nodes_ip, and must be one of the
|
683 |
nodes in the logical ID for each of the DRBD devices encountered
|
684 |
in the disk tree.
|
685 |
|
686 |
"""
|
687 |
if self.children: |
688 |
for child in self.children: |
689 |
child.SetPhysicalID(target_node, nodes_ip) |
690 |
|
691 |
if self.logical_id is None and self.physical_id is not None: |
692 |
return
|
693 |
if self.dev_type in constants.LDS_DRBD: |
694 |
pnode, snode, port, pminor, sminor, secret = self.logical_id
|
695 |
if target_node not in (pnode, snode): |
696 |
raise errors.ConfigurationError("DRBD device not knowing node %s" % |
697 |
target_node) |
698 |
pnode_ip = nodes_ip.get(pnode, None)
|
699 |
snode_ip = nodes_ip.get(snode, None)
|
700 |
if pnode_ip is None or snode_ip is None: |
701 |
raise errors.ConfigurationError("Can't find primary or secondary node" |
702 |
" for %s" % str(self)) |
703 |
p_data = (pnode_ip, port) |
704 |
s_data = (snode_ip, port) |
705 |
if pnode == target_node:
|
706 |
self.physical_id = p_data + s_data + (pminor, secret)
|
707 |
else: # it must be secondary, we tested above |
708 |
self.physical_id = s_data + p_data + (sminor, secret)
|
709 |
else:
|
710 |
self.physical_id = self.logical_id |
711 |
return
|
712 |
|
713 |
def ToDict(self): |
714 |
"""Disk-specific conversion to standard python types.
|
715 |
|
716 |
This replaces the children lists of objects with lists of
|
717 |
standard python types.
|
718 |
|
719 |
"""
|
720 |
bo = super(Disk, self).ToDict() |
721 |
|
722 |
for attr in ("children",): |
723 |
alist = bo.get(attr, None)
|
724 |
if alist:
|
725 |
bo[attr] = self._ContainerToDicts(alist)
|
726 |
return bo
|
727 |
|
728 |
@classmethod
|
729 |
def FromDict(cls, val): |
730 |
"""Custom function for Disks
|
731 |
|
732 |
"""
|
733 |
obj = super(Disk, cls).FromDict(val)
|
734 |
if obj.children:
|
735 |
obj.children = cls._ContainerFromDicts(obj.children, list, Disk)
|
736 |
if obj.logical_id and isinstance(obj.logical_id, list): |
737 |
obj.logical_id = tuple(obj.logical_id)
|
738 |
if obj.physical_id and isinstance(obj.physical_id, list): |
739 |
obj.physical_id = tuple(obj.physical_id)
|
740 |
if obj.dev_type in constants.LDS_DRBD: |
741 |
# we need a tuple of length six here
|
742 |
if len(obj.logical_id) < 6: |
743 |
obj.logical_id += (None,) * (6 - len(obj.logical_id)) |
744 |
return obj
|
745 |
|
746 |
def __str__(self): |
747 |
"""Custom str() formatter for disks.
|
748 |
|
749 |
"""
|
750 |
if self.dev_type == constants.LD_LV: |
751 |
val = "<LogicalVolume(/dev/%s/%s" % self.logical_id |
752 |
elif self.dev_type in constants.LDS_DRBD: |
753 |
node_a, node_b, port, minor_a, minor_b = self.logical_id[:5] |
754 |
val = "<DRBD8("
|
755 |
if self.physical_id is None: |
756 |
phy = "unconfigured"
|
757 |
else:
|
758 |
phy = ("configured as %s:%s %s:%s" %
|
759 |
(self.physical_id[0], self.physical_id[1], |
760 |
self.physical_id[2], self.physical_id[3])) |
761 |
|
762 |
val += ("hosts=%s/%d-%s/%d, port=%s, %s, " %
|
763 |
(node_a, minor_a, node_b, minor_b, port, phy)) |
764 |
if self.children and self.children.count(None) == 0: |
765 |
val += "backend=%s, metadev=%s" % (self.children[0], self.children[1]) |
766 |
else:
|
767 |
val += "no local storage"
|
768 |
else:
|
769 |
val = ("<Disk(type=%s, logical_id=%s, physical_id=%s, children=%s" %
|
770 |
(self.dev_type, self.logical_id, self.physical_id, self.children)) |
771 |
if self.iv_name is None: |
772 |
val += ", not visible"
|
773 |
else:
|
774 |
val += ", visible as /dev/%s" % self.iv_name |
775 |
if isinstance(self.size, int): |
776 |
val += ", size=%dm)>" % self.size |
777 |
else:
|
778 |
val += ", size='%s')>" % (self.size,) |
779 |
return val
|
780 |
|
781 |
def Verify(self): |
782 |
"""Checks that this disk is correctly configured.
|
783 |
|
784 |
"""
|
785 |
all_errors = [] |
786 |
if self.mode not in constants.DISK_ACCESS_SET: |
787 |
all_errors.append("Disk access mode '%s' is invalid" % (self.mode, )) |
788 |
return all_errors
|
789 |
|
790 |
def UpgradeConfig(self): |
791 |
"""Fill defaults for missing configuration values.
|
792 |
|
793 |
"""
|
794 |
if self.children: |
795 |
for child in self.children: |
796 |
child.UpgradeConfig() |
797 |
|
798 |
if not self.params: |
799 |
self.params = constants.DISK_LD_DEFAULTS[self.dev_type].copy() |
800 |
else:
|
801 |
self.params = FillDict(constants.DISK_LD_DEFAULTS[self.dev_type], |
802 |
self.params)
|
803 |
# add here config upgrade for this disk
|
804 |
|
805 |
|
806 |
class InstancePolicy(ConfigObject): |
807 |
"""Config object representing instance policy limits dictionary."""
|
808 |
__slots__ = ["min", "max", "std"] |
809 |
|
810 |
@classmethod
|
811 |
def CheckParameterSyntax(cls, ipolicy): |
812 |
""" Check the instance policy for validity.
|
813 |
|
814 |
"""
|
815 |
for param in constants.ISPECS_PARAMETERS: |
816 |
InstancePolicy.CheckISpecSyntax(ipolicy, param) |
817 |
|
818 |
@classmethod
|
819 |
def CheckISpecSyntax(cls, ipolicy, name): |
820 |
"""Check the instance policy for validity on a given key.
|
821 |
|
822 |
We check if the instance policy makes sense for a given key, that is
|
823 |
if ipolicy[min][name] <= ipolicy[std][name] <= ipolicy[max][name].
|
824 |
|
825 |
@type ipolicy: dict
|
826 |
@param ipolicy: dictionary with min, max, std specs
|
827 |
@type name: string
|
828 |
@param name: what are the limits for
|
829 |
@raise errors.ConfigureError: when specs for given name are not valid
|
830 |
|
831 |
"""
|
832 |
min_v = ipolicy[constants.MIN_ISPECS].get(name, 0)
|
833 |
std_v = ipolicy[constants.STD_ISPECS].get(name, min_v) |
834 |
max_v = ipolicy[constants.MAX_ISPECS].get(name, std_v) |
835 |
err = ("Invalid specification of min/max/std values for %s: %s/%s/%s" %
|
836 |
(name, |
837 |
ipolicy[constants.MIN_ISPECS].get(name, "-"),
|
838 |
ipolicy[constants.MAX_ISPECS].get(name, "-"),
|
839 |
ipolicy[constants.STD_ISPECS].get(name, "-")))
|
840 |
if min_v > std_v or std_v > max_v: |
841 |
raise errors.ConfigurationError(err)
|
842 |
|
843 |
|
844 |
class Instance(TaggableObject): |
845 |
"""Config object representing an instance."""
|
846 |
__slots__ = [ |
847 |
"name",
|
848 |
"primary_node",
|
849 |
"os",
|
850 |
"hypervisor",
|
851 |
"hvparams",
|
852 |
"beparams",
|
853 |
"osparams",
|
854 |
"admin_state",
|
855 |
"nics",
|
856 |
"disks",
|
857 |
"disk_template",
|
858 |
"network_port",
|
859 |
"serial_no",
|
860 |
] + _TIMESTAMPS + _UUID |
861 |
|
862 |
def _ComputeSecondaryNodes(self): |
863 |
"""Compute the list of secondary nodes.
|
864 |
|
865 |
This is a simple wrapper over _ComputeAllNodes.
|
866 |
|
867 |
"""
|
868 |
all_nodes = set(self._ComputeAllNodes()) |
869 |
all_nodes.discard(self.primary_node)
|
870 |
return tuple(all_nodes) |
871 |
|
872 |
secondary_nodes = property(_ComputeSecondaryNodes, None, None, |
873 |
"List of secondary nodes")
|
874 |
|
875 |
def _ComputeAllNodes(self): |
876 |
"""Compute the list of all nodes.
|
877 |
|
878 |
Since the data is already there (in the drbd disks), keeping it as
|
879 |
a separate normal attribute is redundant and if not properly
|
880 |
synchronised can cause problems. Thus it's better to compute it
|
881 |
dynamically.
|
882 |
|
883 |
"""
|
884 |
def _Helper(nodes, device): |
885 |
"""Recursively computes nodes given a top device."""
|
886 |
if device.dev_type in constants.LDS_DRBD: |
887 |
nodea, nodeb = device.logical_id[:2]
|
888 |
nodes.add(nodea) |
889 |
nodes.add(nodeb) |
890 |
if device.children:
|
891 |
for child in device.children: |
892 |
_Helper(nodes, child) |
893 |
|
894 |
all_nodes = set()
|
895 |
all_nodes.add(self.primary_node)
|
896 |
for device in self.disks: |
897 |
_Helper(all_nodes, device) |
898 |
return tuple(all_nodes) |
899 |
|
900 |
all_nodes = property(_ComputeAllNodes, None, None, |
901 |
"List of all nodes of the instance")
|
902 |
|
903 |
def MapLVsByNode(self, lvmap=None, devs=None, node=None): |
904 |
"""Provide a mapping of nodes to LVs this instance owns.
|
905 |
|
906 |
This function figures out what logical volumes should belong on
|
907 |
which nodes, recursing through a device tree.
|
908 |
|
909 |
@param lvmap: optional dictionary to receive the
|
910 |
'node' : ['lv', ...] data.
|
911 |
|
912 |
@return: None if lvmap arg is given, otherwise, a dictionary of
|
913 |
the form { 'nodename' : ['volume1', 'volume2', ...], ... };
|
914 |
volumeN is of the form "vg_name/lv_name", compatible with
|
915 |
GetVolumeList()
|
916 |
|
917 |
"""
|
918 |
if node == None: |
919 |
node = self.primary_node
|
920 |
|
921 |
if lvmap is None: |
922 |
lvmap = { |
923 |
node: [], |
924 |
} |
925 |
ret = lvmap |
926 |
else:
|
927 |
if not node in lvmap: |
928 |
lvmap[node] = [] |
929 |
ret = None
|
930 |
|
931 |
if not devs: |
932 |
devs = self.disks
|
933 |
|
934 |
for dev in devs: |
935 |
if dev.dev_type == constants.LD_LV:
|
936 |
lvmap[node].append(dev.logical_id[0] + "/" + dev.logical_id[1]) |
937 |
|
938 |
elif dev.dev_type in constants.LDS_DRBD: |
939 |
if dev.children:
|
940 |
self.MapLVsByNode(lvmap, dev.children, dev.logical_id[0]) |
941 |
self.MapLVsByNode(lvmap, dev.children, dev.logical_id[1]) |
942 |
|
943 |
elif dev.children:
|
944 |
self.MapLVsByNode(lvmap, dev.children, node)
|
945 |
|
946 |
return ret
|
947 |
|
948 |
def FindDisk(self, idx): |
949 |
"""Find a disk given having a specified index.
|
950 |
|
951 |
This is just a wrapper that does validation of the index.
|
952 |
|
953 |
@type idx: int
|
954 |
@param idx: the disk index
|
955 |
@rtype: L{Disk}
|
956 |
@return: the corresponding disk
|
957 |
@raise errors.OpPrereqError: when the given index is not valid
|
958 |
|
959 |
"""
|
960 |
try:
|
961 |
idx = int(idx)
|
962 |
return self.disks[idx] |
963 |
except (TypeError, ValueError), err: |
964 |
raise errors.OpPrereqError("Invalid disk index: '%s'" % str(err), |
965 |
errors.ECODE_INVAL) |
966 |
except IndexError: |
967 |
raise errors.OpPrereqError("Invalid disk index: %d (instace has disks" |
968 |
" 0 to %d" % (idx, len(self.disks) - 1), |
969 |
errors.ECODE_INVAL) |
970 |
|
971 |
def ToDict(self): |
972 |
"""Instance-specific conversion to standard python types.
|
973 |
|
974 |
This replaces the children lists of objects with lists of standard
|
975 |
python types.
|
976 |
|
977 |
"""
|
978 |
bo = super(Instance, self).ToDict() |
979 |
|
980 |
for attr in "nics", "disks": |
981 |
alist = bo.get(attr, None)
|
982 |
if alist:
|
983 |
nlist = self._ContainerToDicts(alist)
|
984 |
else:
|
985 |
nlist = [] |
986 |
bo[attr] = nlist |
987 |
return bo
|
988 |
|
989 |
@classmethod
|
990 |
def FromDict(cls, val): |
991 |
"""Custom function for instances.
|
992 |
|
993 |
"""
|
994 |
if "admin_state" not in val: |
995 |
if val.get("admin_up", False): |
996 |
val["admin_state"] = constants.ADMINST_UP
|
997 |
else:
|
998 |
val["admin_state"] = constants.ADMINST_DOWN
|
999 |
if "admin_up" in val: |
1000 |
del val["admin_up"] |
1001 |
obj = super(Instance, cls).FromDict(val)
|
1002 |
obj.nics = cls._ContainerFromDicts(obj.nics, list, NIC)
|
1003 |
obj.disks = cls._ContainerFromDicts(obj.disks, list, Disk)
|
1004 |
return obj
|
1005 |
|
1006 |
def UpgradeConfig(self): |
1007 |
"""Fill defaults for missing configuration values.
|
1008 |
|
1009 |
"""
|
1010 |
for nic in self.nics: |
1011 |
nic.UpgradeConfig() |
1012 |
for disk in self.disks: |
1013 |
disk.UpgradeConfig() |
1014 |
if self.hvparams: |
1015 |
for key in constants.HVC_GLOBALS: |
1016 |
try:
|
1017 |
del self.hvparams[key] |
1018 |
except KeyError: |
1019 |
pass
|
1020 |
if self.osparams is None: |
1021 |
self.osparams = {}
|
1022 |
UpgradeBeParams(self.beparams)
|
1023 |
|
1024 |
|
1025 |
class OS(ConfigObject): |
1026 |
"""Config object representing an operating system.
|
1027 |
|
1028 |
@type supported_parameters: list
|
1029 |
@ivar supported_parameters: a list of tuples, name and description,
|
1030 |
containing the supported parameters by this OS
|
1031 |
|
1032 |
@type VARIANT_DELIM: string
|
1033 |
@cvar VARIANT_DELIM: the variant delimiter
|
1034 |
|
1035 |
"""
|
1036 |
__slots__ = [ |
1037 |
"name",
|
1038 |
"path",
|
1039 |
"api_versions",
|
1040 |
"create_script",
|
1041 |
"export_script",
|
1042 |
"import_script",
|
1043 |
"rename_script",
|
1044 |
"verify_script",
|
1045 |
"supported_variants",
|
1046 |
"supported_parameters",
|
1047 |
] |
1048 |
|
1049 |
VARIANT_DELIM = "+"
|
1050 |
|
1051 |
@classmethod
|
1052 |
def SplitNameVariant(cls, name): |
1053 |
"""Splits the name into the proper name and variant.
|
1054 |
|
1055 |
@param name: the OS (unprocessed) name
|
1056 |
@rtype: list
|
1057 |
@return: a list of two elements; if the original name didn't
|
1058 |
contain a variant, it's returned as an empty string
|
1059 |
|
1060 |
"""
|
1061 |
nv = name.split(cls.VARIANT_DELIM, 1)
|
1062 |
if len(nv) == 1: |
1063 |
nv.append("")
|
1064 |
return nv
|
1065 |
|
1066 |
@classmethod
|
1067 |
def GetName(cls, name): |
1068 |
"""Returns the proper name of the os (without the variant).
|
1069 |
|
1070 |
@param name: the OS (unprocessed) name
|
1071 |
|
1072 |
"""
|
1073 |
return cls.SplitNameVariant(name)[0] |
1074 |
|
1075 |
@classmethod
|
1076 |
def GetVariant(cls, name): |
1077 |
"""Returns the variant the os (without the base name).
|
1078 |
|
1079 |
@param name: the OS (unprocessed) name
|
1080 |
|
1081 |
"""
|
1082 |
return cls.SplitNameVariant(name)[1] |
1083 |
|
1084 |
|
1085 |
class NodeHvState(ConfigObject): |
1086 |
"""Hypvervisor state on a node.
|
1087 |
|
1088 |
@ivar mem_total: Total amount of memory
|
1089 |
@ivar mem_node: Memory used by, or reserved for, the node itself (not always
|
1090 |
available)
|
1091 |
@ivar mem_hv: Memory used by hypervisor or lost due to instance allocation
|
1092 |
rounding
|
1093 |
@ivar mem_inst: Memory used by instances living on node
|
1094 |
@ivar cpu_total: Total node CPU core count
|
1095 |
@ivar cpu_node: Number of CPU cores reserved for the node itself
|
1096 |
|
1097 |
"""
|
1098 |
__slots__ = [ |
1099 |
"mem_total",
|
1100 |
"mem_node",
|
1101 |
"mem_hv",
|
1102 |
"mem_inst",
|
1103 |
"cpu_total",
|
1104 |
"cpu_node",
|
1105 |
] + _TIMESTAMPS |
1106 |
|
1107 |
|
1108 |
class NodeDiskState(ConfigObject): |
1109 |
"""Disk state on a node.
|
1110 |
|
1111 |
"""
|
1112 |
__slots__ = [ |
1113 |
"total",
|
1114 |
"reserved",
|
1115 |
"overhead",
|
1116 |
] + _TIMESTAMPS |
1117 |
|
1118 |
|
1119 |
class Node(TaggableObject): |
1120 |
"""Config object representing a node.
|
1121 |
|
1122 |
@ivar hv_state: Hypervisor state (e.g. number of CPUs)
|
1123 |
@ivar hv_state_static: Hypervisor state overriden by user
|
1124 |
@ivar disk_state: Disk state (e.g. free space)
|
1125 |
@ivar disk_state_static: Disk state overriden by user
|
1126 |
|
1127 |
"""
|
1128 |
__slots__ = [ |
1129 |
"name",
|
1130 |
"primary_ip",
|
1131 |
"secondary_ip",
|
1132 |
"serial_no",
|
1133 |
"master_candidate",
|
1134 |
"offline",
|
1135 |
"drained",
|
1136 |
"group",
|
1137 |
"master_capable",
|
1138 |
"vm_capable",
|
1139 |
"ndparams",
|
1140 |
"powered",
|
1141 |
"hv_state",
|
1142 |
"hv_state_static",
|
1143 |
"disk_state",
|
1144 |
"disk_state_static",
|
1145 |
] + _TIMESTAMPS + _UUID |
1146 |
|
1147 |
def UpgradeConfig(self): |
1148 |
"""Fill defaults for missing configuration values.
|
1149 |
|
1150 |
"""
|
1151 |
# pylint: disable=E0203
|
1152 |
# because these are "defined" via slots, not manually
|
1153 |
if self.master_capable is None: |
1154 |
self.master_capable = True |
1155 |
|
1156 |
if self.vm_capable is None: |
1157 |
self.vm_capable = True |
1158 |
|
1159 |
if self.ndparams is None: |
1160 |
self.ndparams = {}
|
1161 |
|
1162 |
if self.powered is None: |
1163 |
self.powered = True |
1164 |
|
1165 |
def ToDict(self): |
1166 |
"""Custom function for serializing.
|
1167 |
|
1168 |
"""
|
1169 |
data = super(Node, self).ToDict() |
1170 |
|
1171 |
hv_state = data.get("hv_state", None) |
1172 |
if hv_state is not None: |
1173 |
data["hv_state"] = self._ContainerToDicts(hv_state) |
1174 |
|
1175 |
disk_state = data.get("disk_state", None) |
1176 |
if disk_state is not None: |
1177 |
data["disk_state"] = \
|
1178 |
dict((key, self._ContainerToDicts(value)) |
1179 |
for (key, value) in disk_state.items()) |
1180 |
|
1181 |
return data
|
1182 |
|
1183 |
@classmethod
|
1184 |
def FromDict(cls, val): |
1185 |
"""Custom function for deserializing.
|
1186 |
|
1187 |
"""
|
1188 |
obj = super(Node, cls).FromDict(val)
|
1189 |
|
1190 |
if obj.hv_state is not None: |
1191 |
obj.hv_state = cls._ContainerFromDicts(obj.hv_state, dict, NodeHvState)
|
1192 |
|
1193 |
if obj.disk_state is not None: |
1194 |
obj.disk_state = \ |
1195 |
dict((key, cls._ContainerFromDicts(value, dict, NodeDiskState)) |
1196 |
for (key, value) in obj.disk_state.items()) |
1197 |
|
1198 |
return obj
|
1199 |
|
1200 |
|
1201 |
class NodeGroup(TaggableObject): |
1202 |
"""Config object representing a node group."""
|
1203 |
__slots__ = [ |
1204 |
"name",
|
1205 |
"members",
|
1206 |
"ndparams",
|
1207 |
"diskparams",
|
1208 |
"serial_no",
|
1209 |
"hv_state_static",
|
1210 |
"disk_state_static",
|
1211 |
"alloc_policy",
|
1212 |
] + _TIMESTAMPS + _UUID |
1213 |
|
1214 |
def ToDict(self): |
1215 |
"""Custom function for nodegroup.
|
1216 |
|
1217 |
This discards the members object, which gets recalculated and is only kept
|
1218 |
in memory.
|
1219 |
|
1220 |
"""
|
1221 |
mydict = super(NodeGroup, self).ToDict() |
1222 |
del mydict["members"] |
1223 |
return mydict
|
1224 |
|
1225 |
@classmethod
|
1226 |
def FromDict(cls, val): |
1227 |
"""Custom function for nodegroup.
|
1228 |
|
1229 |
The members slot is initialized to an empty list, upon deserialization.
|
1230 |
|
1231 |
"""
|
1232 |
obj = super(NodeGroup, cls).FromDict(val)
|
1233 |
obj.members = [] |
1234 |
return obj
|
1235 |
|
1236 |
def UpgradeConfig(self): |
1237 |
"""Fill defaults for missing configuration values.
|
1238 |
|
1239 |
"""
|
1240 |
if self.ndparams is None: |
1241 |
self.ndparams = {}
|
1242 |
|
1243 |
if self.serial_no is None: |
1244 |
self.serial_no = 1 |
1245 |
|
1246 |
if self.alloc_policy is None: |
1247 |
self.alloc_policy = constants.ALLOC_POLICY_PREFERRED
|
1248 |
|
1249 |
# We only update mtime, and not ctime, since we would not be able to provide
|
1250 |
# a correct value for creation time.
|
1251 |
if self.mtime is None: |
1252 |
self.mtime = time.time()
|
1253 |
|
1254 |
self.diskparams = UpgradeDiskParams(self.diskparams) |
1255 |
|
1256 |
def FillND(self, node): |
1257 |
"""Return filled out ndparams for L{objects.Node}
|
1258 |
|
1259 |
@type node: L{objects.Node}
|
1260 |
@param node: A Node object to fill
|
1261 |
@return a copy of the node's ndparams with defaults filled
|
1262 |
|
1263 |
"""
|
1264 |
return self.SimpleFillND(node.ndparams) |
1265 |
|
1266 |
def SimpleFillND(self, ndparams): |
1267 |
"""Fill a given ndparams dict with defaults.
|
1268 |
|
1269 |
@type ndparams: dict
|
1270 |
@param ndparams: the dict to fill
|
1271 |
@rtype: dict
|
1272 |
@return: a copy of the passed in ndparams with missing keys filled
|
1273 |
from the node group defaults
|
1274 |
|
1275 |
"""
|
1276 |
return FillDict(self.ndparams, ndparams) |
1277 |
|
1278 |
|
1279 |
class Cluster(TaggableObject): |
1280 |
"""Config object representing the cluster."""
|
1281 |
__slots__ = [ |
1282 |
"serial_no",
|
1283 |
"rsahostkeypub",
|
1284 |
"highest_used_port",
|
1285 |
"tcpudp_port_pool",
|
1286 |
"mac_prefix",
|
1287 |
"volume_group_name",
|
1288 |
"reserved_lvs",
|
1289 |
"drbd_usermode_helper",
|
1290 |
"default_bridge",
|
1291 |
"default_hypervisor",
|
1292 |
"master_node",
|
1293 |
"master_ip",
|
1294 |
"master_netdev",
|
1295 |
"master_netmask",
|
1296 |
"use_external_mip_script",
|
1297 |
"cluster_name",
|
1298 |
"file_storage_dir",
|
1299 |
"shared_file_storage_dir",
|
1300 |
"enabled_hypervisors",
|
1301 |
"hvparams",
|
1302 |
"ipolicy",
|
1303 |
"os_hvp",
|
1304 |
"beparams",
|
1305 |
"osparams",
|
1306 |
"nicparams",
|
1307 |
"ndparams",
|
1308 |
"diskparams",
|
1309 |
"candidate_pool_size",
|
1310 |
"modify_etc_hosts",
|
1311 |
"modify_ssh_setup",
|
1312 |
"maintain_node_health",
|
1313 |
"uid_pool",
|
1314 |
"default_iallocator",
|
1315 |
"hidden_os",
|
1316 |
"blacklisted_os",
|
1317 |
"primary_ip_family",
|
1318 |
"prealloc_wipe_disks",
|
1319 |
"hv_state_static",
|
1320 |
"disk_state_static",
|
1321 |
] + _TIMESTAMPS + _UUID |
1322 |
|
1323 |
def UpgradeConfig(self): |
1324 |
"""Fill defaults for missing configuration values.
|
1325 |
|
1326 |
"""
|
1327 |
# pylint: disable=E0203
|
1328 |
# because these are "defined" via slots, not manually
|
1329 |
if self.hvparams is None: |
1330 |
self.hvparams = constants.HVC_DEFAULTS
|
1331 |
else:
|
1332 |
for hypervisor in self.hvparams: |
1333 |
self.hvparams[hypervisor] = FillDict(
|
1334 |
constants.HVC_DEFAULTS[hypervisor], self.hvparams[hypervisor])
|
1335 |
|
1336 |
if self.os_hvp is None: |
1337 |
self.os_hvp = {}
|
1338 |
|
1339 |
# osparams added before 2.2
|
1340 |
if self.osparams is None: |
1341 |
self.osparams = {}
|
1342 |
|
1343 |
if self.ndparams is None: |
1344 |
self.ndparams = constants.NDC_DEFAULTS
|
1345 |
|
1346 |
self.beparams = UpgradeGroupedParams(self.beparams, |
1347 |
constants.BEC_DEFAULTS) |
1348 |
for beparams_group in self.beparams: |
1349 |
UpgradeBeParams(self.beparams[beparams_group])
|
1350 |
|
1351 |
migrate_default_bridge = not self.nicparams |
1352 |
self.nicparams = UpgradeGroupedParams(self.nicparams, |
1353 |
constants.NICC_DEFAULTS) |
1354 |
if migrate_default_bridge:
|
1355 |
self.nicparams[constants.PP_DEFAULT][constants.NIC_LINK] = \
|
1356 |
self.default_bridge
|
1357 |
|
1358 |
if self.modify_etc_hosts is None: |
1359 |
self.modify_etc_hosts = True |
1360 |
|
1361 |
if self.modify_ssh_setup is None: |
1362 |
self.modify_ssh_setup = True |
1363 |
|
1364 |
# default_bridge is no longer used in 2.1. The slot is left there to
|
1365 |
# support auto-upgrading. It can be removed once we decide to deprecate
|
1366 |
# upgrading straight from 2.0.
|
1367 |
if self.default_bridge is not None: |
1368 |
self.default_bridge = None |
1369 |
|
1370 |
# default_hypervisor is just the first enabled one in 2.1. This slot and
|
1371 |
# code can be removed once upgrading straight from 2.0 is deprecated.
|
1372 |
if self.default_hypervisor is not None: |
1373 |
self.enabled_hypervisors = ([self.default_hypervisor] + |
1374 |
[hvname for hvname in self.enabled_hypervisors |
1375 |
if hvname != self.default_hypervisor]) |
1376 |
self.default_hypervisor = None |
1377 |
|
1378 |
# maintain_node_health added after 2.1.1
|
1379 |
if self.maintain_node_health is None: |
1380 |
self.maintain_node_health = False |
1381 |
|
1382 |
if self.uid_pool is None: |
1383 |
self.uid_pool = []
|
1384 |
|
1385 |
if self.default_iallocator is None: |
1386 |
self.default_iallocator = "" |
1387 |
|
1388 |
# reserved_lvs added before 2.2
|
1389 |
if self.reserved_lvs is None: |
1390 |
self.reserved_lvs = []
|
1391 |
|
1392 |
# hidden and blacklisted operating systems added before 2.2.1
|
1393 |
if self.hidden_os is None: |
1394 |
self.hidden_os = []
|
1395 |
|
1396 |
if self.blacklisted_os is None: |
1397 |
self.blacklisted_os = []
|
1398 |
|
1399 |
# primary_ip_family added before 2.3
|
1400 |
if self.primary_ip_family is None: |
1401 |
self.primary_ip_family = AF_INET
|
1402 |
|
1403 |
if self.master_netmask is None: |
1404 |
ipcls = netutils.IPAddress.GetClassFromIpFamily(self.primary_ip_family)
|
1405 |
self.master_netmask = ipcls.iplen
|
1406 |
|
1407 |
if self.prealloc_wipe_disks is None: |
1408 |
self.prealloc_wipe_disks = False |
1409 |
|
1410 |
# shared_file_storage_dir added before 2.5
|
1411 |
if self.shared_file_storage_dir is None: |
1412 |
self.shared_file_storage_dir = "" |
1413 |
|
1414 |
if self.use_external_mip_script is None: |
1415 |
self.use_external_mip_script = False |
1416 |
|
1417 |
self.diskparams = UpgradeDiskParams(self.diskparams) |
1418 |
|
1419 |
# instance policy added before 2.6
|
1420 |
if self.ipolicy is None: |
1421 |
self.ipolicy = MakeEmptyIPolicy()
|
1422 |
|
1423 |
@property
|
1424 |
def primary_hypervisor(self): |
1425 |
"""The first hypervisor is the primary.
|
1426 |
|
1427 |
Useful, for example, for L{Node}'s hv/disk state.
|
1428 |
|
1429 |
"""
|
1430 |
return self.enabled_hypervisors[0] |
1431 |
|
1432 |
def ToDict(self): |
1433 |
"""Custom function for cluster.
|
1434 |
|
1435 |
"""
|
1436 |
mydict = super(Cluster, self).ToDict() |
1437 |
mydict["tcpudp_port_pool"] = list(self.tcpudp_port_pool) |
1438 |
return mydict
|
1439 |
|
1440 |
@classmethod
|
1441 |
def FromDict(cls, val): |
1442 |
"""Custom function for cluster.
|
1443 |
|
1444 |
"""
|
1445 |
obj = super(Cluster, cls).FromDict(val)
|
1446 |
if not isinstance(obj.tcpudp_port_pool, set): |
1447 |
obj.tcpudp_port_pool = set(obj.tcpudp_port_pool)
|
1448 |
return obj
|
1449 |
|
1450 |
def GetHVDefaults(self, hypervisor, os_name=None, skip_keys=None): |
1451 |
"""Get the default hypervisor parameters for the cluster.
|
1452 |
|
1453 |
@param hypervisor: the hypervisor name
|
1454 |
@param os_name: if specified, we'll also update the defaults for this OS
|
1455 |
@param skip_keys: if passed, list of keys not to use
|
1456 |
@return: the defaults dict
|
1457 |
|
1458 |
"""
|
1459 |
if skip_keys is None: |
1460 |
skip_keys = [] |
1461 |
|
1462 |
fill_stack = [self.hvparams.get(hypervisor, {})]
|
1463 |
if os_name is not None: |
1464 |
os_hvp = self.os_hvp.get(os_name, {}).get(hypervisor, {})
|
1465 |
fill_stack.append(os_hvp) |
1466 |
|
1467 |
ret_dict = {} |
1468 |
for o_dict in fill_stack: |
1469 |
ret_dict = FillDict(ret_dict, o_dict, skip_keys=skip_keys) |
1470 |
|
1471 |
return ret_dict
|
1472 |
|
1473 |
def SimpleFillHV(self, hv_name, os_name, hvparams, skip_globals=False): |
1474 |
"""Fill a given hvparams dict with cluster defaults.
|
1475 |
|
1476 |
@type hv_name: string
|
1477 |
@param hv_name: the hypervisor to use
|
1478 |
@type os_name: string
|
1479 |
@param os_name: the OS to use for overriding the hypervisor defaults
|
1480 |
@type skip_globals: boolean
|
1481 |
@param skip_globals: if True, the global hypervisor parameters will
|
1482 |
not be filled
|
1483 |
@rtype: dict
|
1484 |
@return: a copy of the given hvparams with missing keys filled from
|
1485 |
the cluster defaults
|
1486 |
|
1487 |
"""
|
1488 |
if skip_globals:
|
1489 |
skip_keys = constants.HVC_GLOBALS |
1490 |
else:
|
1491 |
skip_keys = [] |
1492 |
|
1493 |
def_dict = self.GetHVDefaults(hv_name, os_name, skip_keys=skip_keys)
|
1494 |
return FillDict(def_dict, hvparams, skip_keys=skip_keys)
|
1495 |
|
1496 |
def FillHV(self, instance, skip_globals=False): |
1497 |
"""Fill an instance's hvparams dict with cluster defaults.
|
1498 |
|
1499 |
@type instance: L{objects.Instance}
|
1500 |
@param instance: the instance parameter to fill
|
1501 |
@type skip_globals: boolean
|
1502 |
@param skip_globals: if True, the global hypervisor parameters will
|
1503 |
not be filled
|
1504 |
@rtype: dict
|
1505 |
@return: a copy of the instance's hvparams with missing keys filled from
|
1506 |
the cluster defaults
|
1507 |
|
1508 |
"""
|
1509 |
return self.SimpleFillHV(instance.hypervisor, instance.os, |
1510 |
instance.hvparams, skip_globals) |
1511 |
|
1512 |
def SimpleFillBE(self, beparams): |
1513 |
"""Fill a given beparams dict with cluster defaults.
|
1514 |
|
1515 |
@type beparams: dict
|
1516 |
@param beparams: the dict to fill
|
1517 |
@rtype: dict
|
1518 |
@return: a copy of the passed in beparams with missing keys filled
|
1519 |
from the cluster defaults
|
1520 |
|
1521 |
"""
|
1522 |
return FillDict(self.beparams.get(constants.PP_DEFAULT, {}), beparams) |
1523 |
|
1524 |
def FillBE(self, instance): |
1525 |
"""Fill an instance's beparams dict with cluster defaults.
|
1526 |
|
1527 |
@type instance: L{objects.Instance}
|
1528 |
@param instance: the instance parameter to fill
|
1529 |
@rtype: dict
|
1530 |
@return: a copy of the instance's beparams with missing keys filled from
|
1531 |
the cluster defaults
|
1532 |
|
1533 |
"""
|
1534 |
return self.SimpleFillBE(instance.beparams) |
1535 |
|
1536 |
def SimpleFillNIC(self, nicparams): |
1537 |
"""Fill a given nicparams dict with cluster defaults.
|
1538 |
|
1539 |
@type nicparams: dict
|
1540 |
@param nicparams: the dict to fill
|
1541 |
@rtype: dict
|
1542 |
@return: a copy of the passed in nicparams with missing keys filled
|
1543 |
from the cluster defaults
|
1544 |
|
1545 |
"""
|
1546 |
return FillDict(self.nicparams.get(constants.PP_DEFAULT, {}), nicparams) |
1547 |
|
1548 |
def SimpleFillOS(self, os_name, os_params): |
1549 |
"""Fill an instance's osparams dict with cluster defaults.
|
1550 |
|
1551 |
@type os_name: string
|
1552 |
@param os_name: the OS name to use
|
1553 |
@type os_params: dict
|
1554 |
@param os_params: the dict to fill with default values
|
1555 |
@rtype: dict
|
1556 |
@return: a copy of the instance's osparams with missing keys filled from
|
1557 |
the cluster defaults
|
1558 |
|
1559 |
"""
|
1560 |
name_only = os_name.split("+", 1)[0] |
1561 |
# base OS
|
1562 |
result = self.osparams.get(name_only, {})
|
1563 |
# OS with variant
|
1564 |
result = FillDict(result, self.osparams.get(os_name, {}))
|
1565 |
# specified params
|
1566 |
return FillDict(result, os_params)
|
1567 |
|
1568 |
@staticmethod
|
1569 |
def SimpleFillHvState(hv_state): |
1570 |
"""Fill an hv_state sub dict with cluster defaults.
|
1571 |
|
1572 |
"""
|
1573 |
return FillDict(constants.HVST_DEFAULTS, hv_state)
|
1574 |
|
1575 |
@staticmethod
|
1576 |
def SimpleFillDiskState(disk_state): |
1577 |
"""Fill an disk_state sub dict with cluster defaults.
|
1578 |
|
1579 |
"""
|
1580 |
return FillDict(constants.DS_DEFAULTS, disk_state)
|
1581 |
|
1582 |
def FillND(self, node, nodegroup): |
1583 |
"""Return filled out ndparams for L{objects.NodeGroup} and L{objects.Node}
|
1584 |
|
1585 |
@type node: L{objects.Node}
|
1586 |
@param node: A Node object to fill
|
1587 |
@type nodegroup: L{objects.NodeGroup}
|
1588 |
@param nodegroup: A Node object to fill
|
1589 |
@return a copy of the node's ndparams with defaults filled
|
1590 |
|
1591 |
"""
|
1592 |
return self.SimpleFillND(nodegroup.FillND(node)) |
1593 |
|
1594 |
def SimpleFillND(self, ndparams): |
1595 |
"""Fill a given ndparams dict with defaults.
|
1596 |
|
1597 |
@type ndparams: dict
|
1598 |
@param ndparams: the dict to fill
|
1599 |
@rtype: dict
|
1600 |
@return: a copy of the passed in ndparams with missing keys filled
|
1601 |
from the cluster defaults
|
1602 |
|
1603 |
"""
|
1604 |
return FillDict(self.ndparams, ndparams) |
1605 |
|
1606 |
def SimpleFillIPolicy(self, ipolicy): |
1607 |
""" Fill instance policy dict with defaults.
|
1608 |
|
1609 |
@type ipolicy: dict
|
1610 |
@param ipolicy: the dict to fill
|
1611 |
@rtype: dict
|
1612 |
@return: a copy of passed ipolicy with missing keys filled from
|
1613 |
the cluster defaults
|
1614 |
|
1615 |
"""
|
1616 |
return FillDictOfDicts(self.ipolicy, ipolicy) |
1617 |
|
1618 |
|
1619 |
class BlockDevStatus(ConfigObject): |
1620 |
"""Config object representing the status of a block device."""
|
1621 |
__slots__ = [ |
1622 |
"dev_path",
|
1623 |
"major",
|
1624 |
"minor",
|
1625 |
"sync_percent",
|
1626 |
"estimated_time",
|
1627 |
"is_degraded",
|
1628 |
"ldisk_status",
|
1629 |
] |
1630 |
|
1631 |
|
1632 |
class ImportExportStatus(ConfigObject): |
1633 |
"""Config object representing the status of an import or export."""
|
1634 |
__slots__ = [ |
1635 |
"recent_output",
|
1636 |
"listen_port",
|
1637 |
"connected",
|
1638 |
"progress_mbytes",
|
1639 |
"progress_throughput",
|
1640 |
"progress_eta",
|
1641 |
"progress_percent",
|
1642 |
"exit_status",
|
1643 |
"error_message",
|
1644 |
] + _TIMESTAMPS |
1645 |
|
1646 |
|
1647 |
class ImportExportOptions(ConfigObject): |
1648 |
"""Options for import/export daemon
|
1649 |
|
1650 |
@ivar key_name: X509 key name (None for cluster certificate)
|
1651 |
@ivar ca_pem: Remote peer CA in PEM format (None for cluster certificate)
|
1652 |
@ivar compress: Compression method (one of L{constants.IEC_ALL})
|
1653 |
@ivar magic: Used to ensure the connection goes to the right disk
|
1654 |
@ivar ipv6: Whether to use IPv6
|
1655 |
@ivar connect_timeout: Number of seconds for establishing connection
|
1656 |
|
1657 |
"""
|
1658 |
__slots__ = [ |
1659 |
"key_name",
|
1660 |
"ca_pem",
|
1661 |
"compress",
|
1662 |
"magic",
|
1663 |
"ipv6",
|
1664 |
"connect_timeout",
|
1665 |
] |
1666 |
|
1667 |
|
1668 |
class ConfdRequest(ConfigObject): |
1669 |
"""Object holding a confd request.
|
1670 |
|
1671 |
@ivar protocol: confd protocol version
|
1672 |
@ivar type: confd query type
|
1673 |
@ivar query: query request
|
1674 |
@ivar rsalt: requested reply salt
|
1675 |
|
1676 |
"""
|
1677 |
__slots__ = [ |
1678 |
"protocol",
|
1679 |
"type",
|
1680 |
"query",
|
1681 |
"rsalt",
|
1682 |
] |
1683 |
|
1684 |
|
1685 |
class ConfdReply(ConfigObject): |
1686 |
"""Object holding a confd reply.
|
1687 |
|
1688 |
@ivar protocol: confd protocol version
|
1689 |
@ivar status: reply status code (ok, error)
|
1690 |
@ivar answer: confd query reply
|
1691 |
@ivar serial: configuration serial number
|
1692 |
|
1693 |
"""
|
1694 |
__slots__ = [ |
1695 |
"protocol",
|
1696 |
"status",
|
1697 |
"answer",
|
1698 |
"serial",
|
1699 |
] |
1700 |
|
1701 |
|
1702 |
class QueryFieldDefinition(ConfigObject): |
1703 |
"""Object holding a query field definition.
|
1704 |
|
1705 |
@ivar name: Field name
|
1706 |
@ivar title: Human-readable title
|
1707 |
@ivar kind: Field type
|
1708 |
@ivar doc: Human-readable description
|
1709 |
|
1710 |
"""
|
1711 |
__slots__ = [ |
1712 |
"name",
|
1713 |
"title",
|
1714 |
"kind",
|
1715 |
"doc",
|
1716 |
] |
1717 |
|
1718 |
|
1719 |
class _QueryResponseBase(ConfigObject): |
1720 |
__slots__ = [ |
1721 |
"fields",
|
1722 |
] |
1723 |
|
1724 |
def ToDict(self): |
1725 |
"""Custom function for serializing.
|
1726 |
|
1727 |
"""
|
1728 |
mydict = super(_QueryResponseBase, self).ToDict() |
1729 |
mydict["fields"] = self._ContainerToDicts(mydict["fields"]) |
1730 |
return mydict
|
1731 |
|
1732 |
@classmethod
|
1733 |
def FromDict(cls, val): |
1734 |
"""Custom function for de-serializing.
|
1735 |
|
1736 |
"""
|
1737 |
obj = super(_QueryResponseBase, cls).FromDict(val)
|
1738 |
obj.fields = cls._ContainerFromDicts(obj.fields, list, QueryFieldDefinition)
|
1739 |
return obj
|
1740 |
|
1741 |
|
1742 |
class QueryRequest(ConfigObject): |
1743 |
"""Object holding a query request.
|
1744 |
|
1745 |
"""
|
1746 |
__slots__ = [ |
1747 |
"what",
|
1748 |
"fields",
|
1749 |
"qfilter",
|
1750 |
] |
1751 |
|
1752 |
|
1753 |
class QueryResponse(_QueryResponseBase): |
1754 |
"""Object holding the response to a query.
|
1755 |
|
1756 |
@ivar fields: List of L{QueryFieldDefinition} objects
|
1757 |
@ivar data: Requested data
|
1758 |
|
1759 |
"""
|
1760 |
__slots__ = [ |
1761 |
"data",
|
1762 |
] |
1763 |
|
1764 |
|
1765 |
class QueryFieldsRequest(ConfigObject): |
1766 |
"""Object holding a request for querying available fields.
|
1767 |
|
1768 |
"""
|
1769 |
__slots__ = [ |
1770 |
"what",
|
1771 |
"fields",
|
1772 |
] |
1773 |
|
1774 |
|
1775 |
class QueryFieldsResponse(_QueryResponseBase): |
1776 |
"""Object holding the response to a query for fields.
|
1777 |
|
1778 |
@ivar fields: List of L{QueryFieldDefinition} objects
|
1779 |
|
1780 |
"""
|
1781 |
__slots__ = [ |
1782 |
] |
1783 |
|
1784 |
|
1785 |
class MigrationStatus(ConfigObject): |
1786 |
"""Object holding the status of a migration.
|
1787 |
|
1788 |
"""
|
1789 |
__slots__ = [ |
1790 |
"status",
|
1791 |
"transferred_ram",
|
1792 |
"total_ram",
|
1793 |
] |
1794 |
|
1795 |
|
1796 |
class InstanceConsole(ConfigObject): |
1797 |
"""Object describing how to access the console of an instance.
|
1798 |
|
1799 |
"""
|
1800 |
__slots__ = [ |
1801 |
"instance",
|
1802 |
"kind",
|
1803 |
"message",
|
1804 |
"host",
|
1805 |
"port",
|
1806 |
"user",
|
1807 |
"command",
|
1808 |
"display",
|
1809 |
] |
1810 |
|
1811 |
def Validate(self): |
1812 |
"""Validates contents of this object.
|
1813 |
|
1814 |
"""
|
1815 |
assert self.kind in constants.CONS_ALL, "Unknown console type" |
1816 |
assert self.instance, "Missing instance name" |
1817 |
assert self.message or self.kind in [constants.CONS_SSH, |
1818 |
constants.CONS_SPICE, |
1819 |
constants.CONS_VNC] |
1820 |
assert self.host or self.kind == constants.CONS_MESSAGE |
1821 |
assert self.port or self.kind in [constants.CONS_MESSAGE, |
1822 |
constants.CONS_SSH] |
1823 |
assert self.user or self.kind in [constants.CONS_MESSAGE, |
1824 |
constants.CONS_SPICE, |
1825 |
constants.CONS_VNC] |
1826 |
assert self.command or self.kind in [constants.CONS_MESSAGE, |
1827 |
constants.CONS_SPICE, |
1828 |
constants.CONS_VNC] |
1829 |
assert self.display or self.kind in [constants.CONS_MESSAGE, |
1830 |
constants.CONS_SPICE, |
1831 |
constants.CONS_SSH] |
1832 |
return True |
1833 |
|
1834 |
|
1835 |
class SerializableConfigParser(ConfigParser.SafeConfigParser): |
1836 |
"""Simple wrapper over ConfigParse that allows serialization.
|
1837 |
|
1838 |
This class is basically ConfigParser.SafeConfigParser with two
|
1839 |
additional methods that allow it to serialize/unserialize to/from a
|
1840 |
buffer.
|
1841 |
|
1842 |
"""
|
1843 |
def Dumps(self): |
1844 |
"""Dump this instance and return the string representation."""
|
1845 |
buf = StringIO() |
1846 |
self.write(buf)
|
1847 |
return buf.getvalue()
|
1848 |
|
1849 |
@classmethod
|
1850 |
def Loads(cls, data): |
1851 |
"""Load data from a string."""
|
1852 |
buf = StringIO(data) |
1853 |
cfp = cls() |
1854 |
cfp.readfp(buf) |
1855 |
return cfp
|