root / lib / cmdlib / instance.py @ 763ad5be
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#
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#
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# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 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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"""Logical units dealing with instances."""
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import OpenSSL |
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import copy |
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import itertools |
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import logging |
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import operator |
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import os |
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import time |
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from ganeti import compat |
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from ganeti import constants |
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from ganeti import errors |
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from ganeti import ht |
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from ganeti import hypervisor |
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from ganeti import locking |
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from ganeti.masterd import iallocator |
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from ganeti import masterd |
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from ganeti import netutils |
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from ganeti import objects |
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from ganeti import opcodes |
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from ganeti import pathutils |
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from ganeti import qlang |
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from ganeti import rpc |
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from ganeti import utils |
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from ganeti import query |
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from ganeti.cmdlib.base import NoHooksLU, LogicalUnit, _QueryBase, \ |
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ResultWithJobs, Tasklet |
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from ganeti.cmdlib.common import INSTANCE_ONLINE, INSTANCE_DOWN, \ |
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INSTANCE_NOT_RUNNING, CAN_CHANGE_INSTANCE_OFFLINE, _CheckNodeOnline, \ |
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_ShareAll, _GetDefaultIAllocator, _CheckInstanceNodeGroups, \ |
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_LoadNodeEvacResult, _CheckIAllocatorOrNode, _CheckParamsNotGlobal, \ |
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_IsExclusiveStorageEnabledNode, _CheckHVParams, _CheckOSParams, \ |
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_GetWantedInstances, _CheckInstancesNodeGroups, _AnnotateDiskParams, \ |
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_GetUpdatedParams, _ExpandInstanceName, _ComputeIPolicySpecViolation, \ |
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_CheckInstanceState, _ExpandNodeName |
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from ganeti.cmdlib.instance_storage import _CreateDisks, \ |
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_CheckNodesFreeDiskPerVG, _WipeDisks, _WaitForSync, _CheckDiskConsistency, \ |
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_IsExclusiveStorageEnabledNodeName, _CreateSingleBlockDev, _ComputeDisks, \ |
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_CheckRADOSFreeSpace, _ComputeDiskSizePerVG, _GenerateDiskTemplate, \ |
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_CreateBlockDev, _StartInstanceDisks, _ShutdownInstanceDisks, \ |
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_AssembleInstanceDisks, _ExpandCheckDisks |
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from ganeti.cmdlib.instance_utils import _BuildInstanceHookEnvByObject, \ |
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_GetClusterDomainSecret, _BuildInstanceHookEnv, _NICListToTuple, \ |
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_NICToTuple, _CheckNodeNotDrained, _RemoveInstance, _CopyLockList, \ |
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_ReleaseLocks, _CheckNodeVmCapable, _CheckTargetNodeIPolicy, \ |
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_GetInstanceInfoText, _RemoveDisks |
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import ganeti.masterd.instance |
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#: Type description for changes as returned by L{ApplyContainerMods}'s
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#: callbacks
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_TApplyContModsCbChanges = \ |
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ht.TMaybeListOf(ht.TAnd(ht.TIsLength(2), ht.TItems([
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ht.TNonEmptyString, |
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ht.TAny, |
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]))) |
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def _CheckHostnameSane(lu, name): |
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"""Ensures that a given hostname resolves to a 'sane' name.
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The given name is required to be a prefix of the resolved hostname,
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to prevent accidental mismatches.
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@param lu: the logical unit on behalf of which we're checking
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@param name: the name we should resolve and check
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@return: the resolved hostname object
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"""
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hostname = netutils.GetHostname(name=name) |
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if hostname.name != name:
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lu.LogInfo("Resolved given name '%s' to '%s'", name, hostname.name)
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if not utils.MatchNameComponent(name, [hostname.name]): |
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raise errors.OpPrereqError(("Resolved hostname '%s' does not look the" |
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" same as given hostname '%s'") %
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(hostname.name, name), errors.ECODE_INVAL) |
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return hostname
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def _CheckOpportunisticLocking(op): |
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"""Generate error if opportunistic locking is not possible.
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"""
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if op.opportunistic_locking and not op.iallocator: |
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raise errors.OpPrereqError("Opportunistic locking is only available in" |
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" combination with an instance allocator",
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errors.ECODE_INVAL) |
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def _CreateInstanceAllocRequest(op, disks, nics, beparams, node_whitelist): |
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"""Wrapper around IAReqInstanceAlloc.
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@param op: The instance opcode
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@param disks: The computed disks
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@param nics: The computed nics
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@param beparams: The full filled beparams
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@param node_whitelist: List of nodes which should appear as online to the
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allocator (unless the node is already marked offline)
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@returns: A filled L{iallocator.IAReqInstanceAlloc}
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"""
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spindle_use = beparams[constants.BE_SPINDLE_USE] |
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return iallocator.IAReqInstanceAlloc(name=op.instance_name,
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disk_template=op.disk_template, |
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tags=op.tags, |
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os=op.os_type, |
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vcpus=beparams[constants.BE_VCPUS], |
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memory=beparams[constants.BE_MAXMEM], |
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spindle_use=spindle_use, |
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disks=disks, |
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nics=[n.ToDict() for n in nics], |
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hypervisor=op.hypervisor, |
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node_whitelist=node_whitelist) |
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def _ComputeFullBeParams(op, cluster): |
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"""Computes the full beparams.
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@param op: The instance opcode
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@param cluster: The cluster config object
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@return: The fully filled beparams
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"""
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default_beparams = cluster.beparams[constants.PP_DEFAULT] |
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for param, value in op.beparams.iteritems(): |
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if value == constants.VALUE_AUTO:
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op.beparams[param] = default_beparams[param] |
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objects.UpgradeBeParams(op.beparams) |
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utils.ForceDictType(op.beparams, constants.BES_PARAMETER_TYPES) |
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return cluster.SimpleFillBE(op.beparams)
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def _ComputeNics(op, cluster, default_ip, cfg, ec_id): |
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"""Computes the nics.
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@param op: The instance opcode
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@param cluster: Cluster configuration object
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@param default_ip: The default ip to assign
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@param cfg: An instance of the configuration object
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@param ec_id: Execution context ID
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@returns: The build up nics
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"""
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nics = [] |
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for nic in op.nics: |
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nic_mode_req = nic.get(constants.INIC_MODE, None)
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nic_mode = nic_mode_req |
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if nic_mode is None or nic_mode == constants.VALUE_AUTO: |
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nic_mode = cluster.nicparams[constants.PP_DEFAULT][constants.NIC_MODE] |
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net = nic.get(constants.INIC_NETWORK, None)
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link = nic.get(constants.NIC_LINK, None)
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ip = nic.get(constants.INIC_IP, None)
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if net is None or net.lower() == constants.VALUE_NONE: |
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net = None
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else:
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if nic_mode_req is not None or link is not None: |
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raise errors.OpPrereqError("If network is given, no mode or link" |
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" is allowed to be passed",
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errors.ECODE_INVAL) |
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# ip validity checks
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if ip is None or ip.lower() == constants.VALUE_NONE: |
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nic_ip = None
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elif ip.lower() == constants.VALUE_AUTO:
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if not op.name_check: |
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raise errors.OpPrereqError("IP address set to auto but name checks" |
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" have been skipped",
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errors.ECODE_INVAL) |
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nic_ip = default_ip |
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else:
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# We defer pool operations until later, so that the iallocator has
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# filled in the instance's node(s) dimara
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if ip.lower() == constants.NIC_IP_POOL:
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if net is None: |
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raise errors.OpPrereqError("if ip=pool, parameter network" |
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" must be passed too",
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errors.ECODE_INVAL) |
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elif not netutils.IPAddress.IsValid(ip): |
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raise errors.OpPrereqError("Invalid IP address '%s'" % ip, |
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errors.ECODE_INVAL) |
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nic_ip = ip |
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# TODO: check the ip address for uniqueness
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if nic_mode == constants.NIC_MODE_ROUTED and not nic_ip: |
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raise errors.OpPrereqError("Routed nic mode requires an ip address", |
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errors.ECODE_INVAL) |
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# MAC address verification
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mac = nic.get(constants.INIC_MAC, constants.VALUE_AUTO) |
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if mac not in (constants.VALUE_AUTO, constants.VALUE_GENERATE): |
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mac = utils.NormalizeAndValidateMac(mac) |
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try:
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# TODO: We need to factor this out
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cfg.ReserveMAC(mac, ec_id) |
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except errors.ReservationError:
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raise errors.OpPrereqError("MAC address %s already in use" |
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" in cluster" % mac,
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errors.ECODE_NOTUNIQUE) |
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# Build nic parameters
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nicparams = {}
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if nic_mode_req:
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nicparams[constants.NIC_MODE] = nic_mode |
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if link:
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nicparams[constants.NIC_LINK] = link |
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check_params = cluster.SimpleFillNIC(nicparams) |
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objects.NIC.CheckParameterSyntax(check_params) |
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net_uuid = cfg.LookupNetwork(net) |
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name = nic.get(constants.INIC_NAME, None)
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if name is not None and name.lower() == constants.VALUE_NONE: |
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name = None
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nic_obj = objects.NIC(mac=mac, ip=nic_ip, name=name, |
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network=net_uuid, nicparams=nicparams) |
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nic_obj.uuid = cfg.GenerateUniqueID(ec_id) |
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nics.append(nic_obj) |
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return nics
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def _CheckForConflictingIp(lu, ip, node): |
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"""In case of conflicting IP address raise error.
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@type ip: string
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@param ip: IP address
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@type node: string
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@param node: node name
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"""
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(conf_net, _) = lu.cfg.CheckIPInNodeGroup(ip, node) |
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if conf_net is not None: |
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raise errors.OpPrereqError(("The requested IP address (%s) belongs to" |
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" network %s, but the target NIC does not." %
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(ip, conf_net)), |
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errors.ECODE_STATE) |
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return (None, None) |
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def _ComputeIPolicyInstanceSpecViolation( |
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ipolicy, instance_spec, disk_template, |
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_compute_fn=_ComputeIPolicySpecViolation): |
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"""Compute if instance specs meets the specs of ipolicy.
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@type ipolicy: dict
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@param ipolicy: The ipolicy to verify against
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@param instance_spec: dict
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@param instance_spec: The instance spec to verify
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@type disk_template: string
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@param disk_template: the disk template of the instance
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@param _compute_fn: The function to verify ipolicy (unittest only)
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@see: L{_ComputeIPolicySpecViolation}
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"""
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mem_size = instance_spec.get(constants.ISPEC_MEM_SIZE, None)
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cpu_count = instance_spec.get(constants.ISPEC_CPU_COUNT, None)
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disk_count = instance_spec.get(constants.ISPEC_DISK_COUNT, 0)
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disk_sizes = instance_spec.get(constants.ISPEC_DISK_SIZE, []) |
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nic_count = instance_spec.get(constants.ISPEC_NIC_COUNT, 0)
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spindle_use = instance_spec.get(constants.ISPEC_SPINDLE_USE, None)
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return _compute_fn(ipolicy, mem_size, cpu_count, disk_count, nic_count,
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disk_sizes, spindle_use, disk_template) |
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def _CheckOSVariant(os_obj, name): |
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"""Check whether an OS name conforms to the os variants specification.
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@type os_obj: L{objects.OS}
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@param os_obj: OS object to check
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@type name: string
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@param name: OS name passed by the user, to check for validity
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"""
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variant = objects.OS.GetVariant(name) |
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if not os_obj.supported_variants: |
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if variant:
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raise errors.OpPrereqError("OS '%s' doesn't support variants ('%s'" |
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" passed)" % (os_obj.name, variant),
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errors.ECODE_INVAL) |
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return
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if not variant: |
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raise errors.OpPrereqError("OS name must include a variant", |
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errors.ECODE_INVAL) |
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if variant not in os_obj.supported_variants: |
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raise errors.OpPrereqError("Unsupported OS variant", errors.ECODE_INVAL) |
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def _CheckNodeHasOS(lu, node, os_name, force_variant): |
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"""Ensure that a node supports a given OS.
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@param lu: the LU on behalf of which we make the check
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@param node: the node to check
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@param os_name: the OS to query about
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@param force_variant: whether to ignore variant errors
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@raise errors.OpPrereqError: if the node is not supporting the OS
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"""
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result = lu.rpc.call_os_get(node, os_name) |
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result.Raise("OS '%s' not in supported OS list for node %s" %
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(os_name, node), |
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prereq=True, ecode=errors.ECODE_INVAL)
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if not force_variant: |
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_CheckOSVariant(result.payload, os_name) |
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def _CheckNicsBridgesExist(lu, target_nics, target_node): |
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"""Check that the brigdes needed by a list of nics exist.
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"""
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cluster = lu.cfg.GetClusterInfo() |
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paramslist = [cluster.SimpleFillNIC(nic.nicparams) for nic in target_nics] |
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brlist = [params[constants.NIC_LINK] for params in paramslist |
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if params[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED]
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if brlist:
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result = lu.rpc.call_bridges_exist(target_node, brlist) |
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result.Raise("Error checking bridges on destination node '%s'" %
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target_node, prereq=True, ecode=errors.ECODE_ENVIRON)
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def _CheckNodeFreeMemory(lu, node, reason, requested, hypervisor_name): |
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"""Checks if a node has enough free memory.
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This function checks if a given node has the needed amount of free
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memory. In case the node has less memory or we cannot get the
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information from the node, this function raises an OpPrereqError
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exception.
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@type lu: C{LogicalUnit}
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@param lu: a logical unit from which we get configuration data
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@type node: C{str}
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@param node: the node to check
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@type reason: C{str}
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@param reason: string to use in the error message
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@type requested: C{int}
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@param requested: the amount of memory in MiB to check for
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@type hypervisor_name: C{str}
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@param hypervisor_name: the hypervisor to ask for memory stats
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@rtype: integer
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@return: node current free memory
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@raise errors.OpPrereqError: if the node doesn't have enough memory, or
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we cannot check the node
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"""
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nodeinfo = lu.rpc.call_node_info([node], None, [hypervisor_name], False) |
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nodeinfo[node].Raise("Can't get data from node %s" % node,
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prereq=True, ecode=errors.ECODE_ENVIRON)
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(_, _, (hv_info, )) = nodeinfo[node].payload |
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free_mem = hv_info.get("memory_free", None) |
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if not isinstance(free_mem, int): |
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raise errors.OpPrereqError("Can't compute free memory on node %s, result" |
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" was '%s'" % (node, free_mem),
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errors.ECODE_ENVIRON) |
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if requested > free_mem:
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raise errors.OpPrereqError("Not enough memory on node %s for %s:" |
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" needed %s MiB, available %s MiB" %
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(node, reason, requested, free_mem), |
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errors.ECODE_NORES) |
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return free_mem
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class LUInstanceCreate(LogicalUnit): |
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"""Create an instance.
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"""
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HPATH = "instance-add"
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HTYPE = constants.HTYPE_INSTANCE |
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REQ_BGL = False
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def CheckArguments(self): |
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"""Check arguments.
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"""
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# do not require name_check to ease forward/backward compatibility
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# for tools
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if self.op.no_install and self.op.start: |
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self.LogInfo("No-installation mode selected, disabling startup") |
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self.op.start = False |
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# validate/normalize the instance name
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self.op.instance_name = \
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netutils.Hostname.GetNormalizedName(self.op.instance_name)
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if self.op.ip_check and not self.op.name_check: |
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# TODO: make the ip check more flexible and not depend on the name check
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raise errors.OpPrereqError("Cannot do IP address check without a name" |
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" check", errors.ECODE_INVAL)
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# check nics' parameter names
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for nic in self.op.nics: |
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utils.ForceDictType(nic, constants.INIC_PARAMS_TYPES) |
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# check that NIC's parameters names are unique and valid
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utils.ValidateDeviceNames("NIC", self.op.nics) |
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# check that disk's names are unique and valid
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utils.ValidateDeviceNames("disk", self.op.disks) |
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cluster = self.cfg.GetClusterInfo()
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if not self.op.disk_template in cluster.enabled_disk_templates: |
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raise errors.OpPrereqError("Cannot create an instance with disk template" |
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" '%s', because it is not enabled in the"
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" cluster. Enabled disk templates are: %s." %
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(self.op.disk_template,
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",".join(cluster.enabled_disk_templates)))
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# check disks. parameter names and consistent adopt/no-adopt strategy
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has_adopt = has_no_adopt = False
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for disk in self.op.disks: |
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if self.op.disk_template != constants.DT_EXT: |
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utils.ForceDictType(disk, constants.IDISK_PARAMS_TYPES) |
| 445 |
if constants.IDISK_ADOPT in disk: |
| 446 |
has_adopt = True
|
| 447 |
else:
|
| 448 |
has_no_adopt = True
|
| 449 |
if has_adopt and has_no_adopt: |
| 450 |
raise errors.OpPrereqError("Either all disks are adopted or none is", |
| 451 |
errors.ECODE_INVAL) |
| 452 |
if has_adopt:
|
| 453 |
if self.op.disk_template not in constants.DTS_MAY_ADOPT: |
| 454 |
raise errors.OpPrereqError("Disk adoption is not supported for the" |
| 455 |
" '%s' disk template" %
|
| 456 |
self.op.disk_template,
|
| 457 |
errors.ECODE_INVAL) |
| 458 |
if self.op.iallocator is not None: |
| 459 |
raise errors.OpPrereqError("Disk adoption not allowed with an" |
| 460 |
" iallocator script", errors.ECODE_INVAL)
|
| 461 |
if self.op.mode == constants.INSTANCE_IMPORT: |
| 462 |
raise errors.OpPrereqError("Disk adoption not allowed for" |
| 463 |
" instance import", errors.ECODE_INVAL)
|
| 464 |
else:
|
| 465 |
if self.op.disk_template in constants.DTS_MUST_ADOPT: |
| 466 |
raise errors.OpPrereqError("Disk template %s requires disk adoption," |
| 467 |
" but no 'adopt' parameter given" %
|
| 468 |
self.op.disk_template,
|
| 469 |
errors.ECODE_INVAL) |
| 470 |
|
| 471 |
self.adopt_disks = has_adopt
|
| 472 |
|
| 473 |
# instance name verification
|
| 474 |
if self.op.name_check: |
| 475 |
self.hostname1 = _CheckHostnameSane(self, self.op.instance_name) |
| 476 |
self.op.instance_name = self.hostname1.name |
| 477 |
# used in CheckPrereq for ip ping check
|
| 478 |
self.check_ip = self.hostname1.ip |
| 479 |
else:
|
| 480 |
self.check_ip = None |
| 481 |
|
| 482 |
# file storage checks
|
| 483 |
if (self.op.file_driver and |
| 484 |
not self.op.file_driver in constants.FILE_DRIVER): |
| 485 |
raise errors.OpPrereqError("Invalid file driver name '%s'" % |
| 486 |
self.op.file_driver, errors.ECODE_INVAL)
|
| 487 |
|
| 488 |
if self.op.disk_template == constants.DT_FILE: |
| 489 |
opcodes.RequireFileStorage() |
| 490 |
elif self.op.disk_template == constants.DT_SHARED_FILE: |
| 491 |
opcodes.RequireSharedFileStorage() |
| 492 |
|
| 493 |
### Node/iallocator related checks
|
| 494 |
_CheckIAllocatorOrNode(self, "iallocator", "pnode") |
| 495 |
|
| 496 |
if self.op.pnode is not None: |
| 497 |
if self.op.disk_template in constants.DTS_INT_MIRROR: |
| 498 |
if self.op.snode is None: |
| 499 |
raise errors.OpPrereqError("The networked disk templates need" |
| 500 |
" a mirror node", errors.ECODE_INVAL)
|
| 501 |
elif self.op.snode: |
| 502 |
self.LogWarning("Secondary node will be ignored on non-mirrored disk" |
| 503 |
" template")
|
| 504 |
self.op.snode = None |
| 505 |
|
| 506 |
_CheckOpportunisticLocking(self.op)
|
| 507 |
|
| 508 |
self._cds = _GetClusterDomainSecret()
|
| 509 |
|
| 510 |
if self.op.mode == constants.INSTANCE_IMPORT: |
| 511 |
# On import force_variant must be True, because if we forced it at
|
| 512 |
# initial install, our only chance when importing it back is that it
|
| 513 |
# works again!
|
| 514 |
self.op.force_variant = True |
| 515 |
|
| 516 |
if self.op.no_install: |
| 517 |
self.LogInfo("No-installation mode has no effect during import") |
| 518 |
|
| 519 |
elif self.op.mode == constants.INSTANCE_CREATE: |
| 520 |
if self.op.os_type is None: |
| 521 |
raise errors.OpPrereqError("No guest OS specified", |
| 522 |
errors.ECODE_INVAL) |
| 523 |
if self.op.os_type in self.cfg.GetClusterInfo().blacklisted_os: |
| 524 |
raise errors.OpPrereqError("Guest OS '%s' is not allowed for" |
| 525 |
" installation" % self.op.os_type, |
| 526 |
errors.ECODE_STATE) |
| 527 |
if self.op.disk_template is None: |
| 528 |
raise errors.OpPrereqError("No disk template specified", |
| 529 |
errors.ECODE_INVAL) |
| 530 |
|
| 531 |
elif self.op.mode == constants.INSTANCE_REMOTE_IMPORT: |
| 532 |
# Check handshake to ensure both clusters have the same domain secret
|
| 533 |
src_handshake = self.op.source_handshake
|
| 534 |
if not src_handshake: |
| 535 |
raise errors.OpPrereqError("Missing source handshake", |
| 536 |
errors.ECODE_INVAL) |
| 537 |
|
| 538 |
errmsg = masterd.instance.CheckRemoteExportHandshake(self._cds,
|
| 539 |
src_handshake) |
| 540 |
if errmsg:
|
| 541 |
raise errors.OpPrereqError("Invalid handshake: %s" % errmsg, |
| 542 |
errors.ECODE_INVAL) |
| 543 |
|
| 544 |
# Load and check source CA
|
| 545 |
self.source_x509_ca_pem = self.op.source_x509_ca |
| 546 |
if not self.source_x509_ca_pem: |
| 547 |
raise errors.OpPrereqError("Missing source X509 CA", |
| 548 |
errors.ECODE_INVAL) |
| 549 |
|
| 550 |
try:
|
| 551 |
(cert, _) = utils.LoadSignedX509Certificate(self.source_x509_ca_pem,
|
| 552 |
self._cds)
|
| 553 |
except OpenSSL.crypto.Error, err:
|
| 554 |
raise errors.OpPrereqError("Unable to load source X509 CA (%s)" % |
| 555 |
(err, ), errors.ECODE_INVAL) |
| 556 |
|
| 557 |
(errcode, msg) = utils.VerifyX509Certificate(cert, None, None) |
| 558 |
if errcode is not None: |
| 559 |
raise errors.OpPrereqError("Invalid source X509 CA (%s)" % (msg, ), |
| 560 |
errors.ECODE_INVAL) |
| 561 |
|
| 562 |
self.source_x509_ca = cert
|
| 563 |
|
| 564 |
src_instance_name = self.op.source_instance_name
|
| 565 |
if not src_instance_name: |
| 566 |
raise errors.OpPrereqError("Missing source instance name", |
| 567 |
errors.ECODE_INVAL) |
| 568 |
|
| 569 |
self.source_instance_name = \
|
| 570 |
netutils.GetHostname(name=src_instance_name).name |
| 571 |
|
| 572 |
else:
|
| 573 |
raise errors.OpPrereqError("Invalid instance creation mode %r" % |
| 574 |
self.op.mode, errors.ECODE_INVAL)
|
| 575 |
|
| 576 |
def ExpandNames(self): |
| 577 |
"""ExpandNames for CreateInstance.
|
| 578 |
|
| 579 |
Figure out the right locks for instance creation.
|
| 580 |
|
| 581 |
"""
|
| 582 |
self.needed_locks = {}
|
| 583 |
|
| 584 |
instance_name = self.op.instance_name
|
| 585 |
# this is just a preventive check, but someone might still add this
|
| 586 |
# instance in the meantime, and creation will fail at lock-add time
|
| 587 |
if instance_name in self.cfg.GetInstanceList(): |
| 588 |
raise errors.OpPrereqError("Instance '%s' is already in the cluster" % |
| 589 |
instance_name, errors.ECODE_EXISTS) |
| 590 |
|
| 591 |
self.add_locks[locking.LEVEL_INSTANCE] = instance_name
|
| 592 |
|
| 593 |
if self.op.iallocator: |
| 594 |
# TODO: Find a solution to not lock all nodes in the cluster, e.g. by
|
| 595 |
# specifying a group on instance creation and then selecting nodes from
|
| 596 |
# that group
|
| 597 |
self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
|
| 598 |
self.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET
|
| 599 |
|
| 600 |
if self.op.opportunistic_locking: |
| 601 |
self.opportunistic_locks[locking.LEVEL_NODE] = True |
| 602 |
self.opportunistic_locks[locking.LEVEL_NODE_RES] = True |
| 603 |
else:
|
| 604 |
self.op.pnode = _ExpandNodeName(self.cfg, self.op.pnode) |
| 605 |
nodelist = [self.op.pnode]
|
| 606 |
if self.op.snode is not None: |
| 607 |
self.op.snode = _ExpandNodeName(self.cfg, self.op.snode) |
| 608 |
nodelist.append(self.op.snode)
|
| 609 |
self.needed_locks[locking.LEVEL_NODE] = nodelist
|
| 610 |
|
| 611 |
# in case of import lock the source node too
|
| 612 |
if self.op.mode == constants.INSTANCE_IMPORT: |
| 613 |
src_node = self.op.src_node
|
| 614 |
src_path = self.op.src_path
|
| 615 |
|
| 616 |
if src_path is None: |
| 617 |
self.op.src_path = src_path = self.op.instance_name |
| 618 |
|
| 619 |
if src_node is None: |
| 620 |
self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
|
| 621 |
self.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET
|
| 622 |
self.op.src_node = None |
| 623 |
if os.path.isabs(src_path):
|
| 624 |
raise errors.OpPrereqError("Importing an instance from a path" |
| 625 |
" requires a source node option",
|
| 626 |
errors.ECODE_INVAL) |
| 627 |
else:
|
| 628 |
self.op.src_node = src_node = _ExpandNodeName(self.cfg, src_node) |
| 629 |
if self.needed_locks[locking.LEVEL_NODE] is not locking.ALL_SET: |
| 630 |
self.needed_locks[locking.LEVEL_NODE].append(src_node)
|
| 631 |
if not os.path.isabs(src_path): |
| 632 |
self.op.src_path = src_path = \
|
| 633 |
utils.PathJoin(pathutils.EXPORT_DIR, src_path) |
| 634 |
|
| 635 |
self.needed_locks[locking.LEVEL_NODE_RES] = \
|
| 636 |
_CopyLockList(self.needed_locks[locking.LEVEL_NODE])
|
| 637 |
|
| 638 |
def _RunAllocator(self): |
| 639 |
"""Run the allocator based on input opcode.
|
| 640 |
|
| 641 |
"""
|
| 642 |
if self.op.opportunistic_locking: |
| 643 |
# Only consider nodes for which a lock is held
|
| 644 |
node_whitelist = list(self.owned_locks(locking.LEVEL_NODE)) |
| 645 |
else:
|
| 646 |
node_whitelist = None
|
| 647 |
|
| 648 |
#TODO Export network to iallocator so that it chooses a pnode
|
| 649 |
# in a nodegroup that has the desired network connected to
|
| 650 |
req = _CreateInstanceAllocRequest(self.op, self.disks, |
| 651 |
self.nics, self.be_full, |
| 652 |
node_whitelist) |
| 653 |
ial = iallocator.IAllocator(self.cfg, self.rpc, req) |
| 654 |
|
| 655 |
ial.Run(self.op.iallocator)
|
| 656 |
|
| 657 |
if not ial.success: |
| 658 |
# When opportunistic locks are used only a temporary failure is generated
|
| 659 |
if self.op.opportunistic_locking: |
| 660 |
ecode = errors.ECODE_TEMP_NORES |
| 661 |
else:
|
| 662 |
ecode = errors.ECODE_NORES |
| 663 |
|
| 664 |
raise errors.OpPrereqError("Can't compute nodes using" |
| 665 |
" iallocator '%s': %s" %
|
| 666 |
(self.op.iallocator, ial.info),
|
| 667 |
ecode) |
| 668 |
|
| 669 |
self.op.pnode = ial.result[0] |
| 670 |
self.LogInfo("Selected nodes for instance %s via iallocator %s: %s", |
| 671 |
self.op.instance_name, self.op.iallocator, |
| 672 |
utils.CommaJoin(ial.result)) |
| 673 |
|
| 674 |
assert req.RequiredNodes() in (1, 2), "Wrong node count from iallocator" |
| 675 |
|
| 676 |
if req.RequiredNodes() == 2: |
| 677 |
self.op.snode = ial.result[1] |
| 678 |
|
| 679 |
def BuildHooksEnv(self): |
| 680 |
"""Build hooks env.
|
| 681 |
|
| 682 |
This runs on master, primary and secondary nodes of the instance.
|
| 683 |
|
| 684 |
"""
|
| 685 |
env = {
|
| 686 |
"ADD_MODE": self.op.mode, |
| 687 |
} |
| 688 |
if self.op.mode == constants.INSTANCE_IMPORT: |
| 689 |
env["SRC_NODE"] = self.op.src_node |
| 690 |
env["SRC_PATH"] = self.op.src_path |
| 691 |
env["SRC_IMAGES"] = self.src_images |
| 692 |
|
| 693 |
env.update(_BuildInstanceHookEnv( |
| 694 |
name=self.op.instance_name,
|
| 695 |
primary_node=self.op.pnode,
|
| 696 |
secondary_nodes=self.secondaries,
|
| 697 |
status=self.op.start,
|
| 698 |
os_type=self.op.os_type,
|
| 699 |
minmem=self.be_full[constants.BE_MINMEM],
|
| 700 |
maxmem=self.be_full[constants.BE_MAXMEM],
|
| 701 |
vcpus=self.be_full[constants.BE_VCPUS],
|
| 702 |
nics=_NICListToTuple(self, self.nics), |
| 703 |
disk_template=self.op.disk_template,
|
| 704 |
disks=[(d[constants.IDISK_NAME], d[constants.IDISK_SIZE], |
| 705 |
d[constants.IDISK_MODE]) for d in self.disks], |
| 706 |
bep=self.be_full,
|
| 707 |
hvp=self.hv_full,
|
| 708 |
hypervisor_name=self.op.hypervisor,
|
| 709 |
tags=self.op.tags,
|
| 710 |
)) |
| 711 |
|
| 712 |
return env
|
| 713 |
|
| 714 |
def BuildHooksNodes(self): |
| 715 |
"""Build hooks nodes.
|
| 716 |
|
| 717 |
"""
|
| 718 |
nl = [self.cfg.GetMasterNode(), self.op.pnode] + self.secondaries |
| 719 |
return nl, nl
|
| 720 |
|
| 721 |
def _ReadExportInfo(self): |
| 722 |
"""Reads the export information from disk.
|
| 723 |
|
| 724 |
It will override the opcode source node and path with the actual
|
| 725 |
information, if these two were not specified before.
|
| 726 |
|
| 727 |
@return: the export information
|
| 728 |
|
| 729 |
"""
|
| 730 |
assert self.op.mode == constants.INSTANCE_IMPORT |
| 731 |
|
| 732 |
src_node = self.op.src_node
|
| 733 |
src_path = self.op.src_path
|
| 734 |
|
| 735 |
if src_node is None: |
| 736 |
locked_nodes = self.owned_locks(locking.LEVEL_NODE)
|
| 737 |
exp_list = self.rpc.call_export_list(locked_nodes)
|
| 738 |
found = False
|
| 739 |
for node in exp_list: |
| 740 |
if exp_list[node].fail_msg:
|
| 741 |
continue
|
| 742 |
if src_path in exp_list[node].payload: |
| 743 |
found = True
|
| 744 |
self.op.src_node = src_node = node
|
| 745 |
self.op.src_path = src_path = utils.PathJoin(pathutils.EXPORT_DIR,
|
| 746 |
src_path) |
| 747 |
break
|
| 748 |
if not found: |
| 749 |
raise errors.OpPrereqError("No export found for relative path %s" % |
| 750 |
src_path, errors.ECODE_INVAL) |
| 751 |
|
| 752 |
_CheckNodeOnline(self, src_node)
|
| 753 |
result = self.rpc.call_export_info(src_node, src_path)
|
| 754 |
result.Raise("No export or invalid export found in dir %s" % src_path)
|
| 755 |
|
| 756 |
export_info = objects.SerializableConfigParser.Loads(str(result.payload))
|
| 757 |
if not export_info.has_section(constants.INISECT_EXP): |
| 758 |
raise errors.ProgrammerError("Corrupted export config", |
| 759 |
errors.ECODE_ENVIRON) |
| 760 |
|
| 761 |
ei_version = export_info.get(constants.INISECT_EXP, "version")
|
| 762 |
if (int(ei_version) != constants.EXPORT_VERSION): |
| 763 |
raise errors.OpPrereqError("Wrong export version %s (wanted %d)" % |
| 764 |
(ei_version, constants.EXPORT_VERSION), |
| 765 |
errors.ECODE_ENVIRON) |
| 766 |
return export_info
|
| 767 |
|
| 768 |
def _ReadExportParams(self, einfo): |
| 769 |
"""Use export parameters as defaults.
|
| 770 |
|
| 771 |
In case the opcode doesn't specify (as in override) some instance
|
| 772 |
parameters, then try to use them from the export information, if
|
| 773 |
that declares them.
|
| 774 |
|
| 775 |
"""
|
| 776 |
self.op.os_type = einfo.get(constants.INISECT_EXP, "os") |
| 777 |
|
| 778 |
if self.op.disk_template is None: |
| 779 |
if einfo.has_option(constants.INISECT_INS, "disk_template"): |
| 780 |
self.op.disk_template = einfo.get(constants.INISECT_INS,
|
| 781 |
"disk_template")
|
| 782 |
if self.op.disk_template not in constants.DISK_TEMPLATES: |
| 783 |
raise errors.OpPrereqError("Disk template specified in configuration" |
| 784 |
" file is not one of the allowed values:"
|
| 785 |
" %s" %
|
| 786 |
" ".join(constants.DISK_TEMPLATES),
|
| 787 |
errors.ECODE_INVAL) |
| 788 |
else:
|
| 789 |
raise errors.OpPrereqError("No disk template specified and the export" |
| 790 |
" is missing the disk_template information",
|
| 791 |
errors.ECODE_INVAL) |
| 792 |
|
| 793 |
if not self.op.disks: |
| 794 |
disks = [] |
| 795 |
# TODO: import the disk iv_name too
|
| 796 |
for idx in range(constants.MAX_DISKS): |
| 797 |
if einfo.has_option(constants.INISECT_INS, "disk%d_size" % idx): |
| 798 |
disk_sz = einfo.getint(constants.INISECT_INS, "disk%d_size" % idx)
|
| 799 |
disks.append({constants.IDISK_SIZE: disk_sz})
|
| 800 |
self.op.disks = disks
|
| 801 |
if not disks and self.op.disk_template != constants.DT_DISKLESS: |
| 802 |
raise errors.OpPrereqError("No disk info specified and the export" |
| 803 |
" is missing the disk information",
|
| 804 |
errors.ECODE_INVAL) |
| 805 |
|
| 806 |
if not self.op.nics: |
| 807 |
nics = [] |
| 808 |
for idx in range(constants.MAX_NICS): |
| 809 |
if einfo.has_option(constants.INISECT_INS, "nic%d_mac" % idx): |
| 810 |
ndict = {}
|
| 811 |
for name in list(constants.NICS_PARAMETERS) + ["ip", "mac"]: |
| 812 |
v = einfo.get(constants.INISECT_INS, "nic%d_%s" % (idx, name))
|
| 813 |
ndict[name] = v |
| 814 |
nics.append(ndict) |
| 815 |
else:
|
| 816 |
break
|
| 817 |
self.op.nics = nics
|
| 818 |
|
| 819 |
if not self.op.tags and einfo.has_option(constants.INISECT_INS, "tags"): |
| 820 |
self.op.tags = einfo.get(constants.INISECT_INS, "tags").split() |
| 821 |
|
| 822 |
if (self.op.hypervisor is None and |
| 823 |
einfo.has_option(constants.INISECT_INS, "hypervisor")):
|
| 824 |
self.op.hypervisor = einfo.get(constants.INISECT_INS, "hypervisor") |
| 825 |
|
| 826 |
if einfo.has_section(constants.INISECT_HYP):
|
| 827 |
# use the export parameters but do not override the ones
|
| 828 |
# specified by the user
|
| 829 |
for name, value in einfo.items(constants.INISECT_HYP): |
| 830 |
if name not in self.op.hvparams: |
| 831 |
self.op.hvparams[name] = value
|
| 832 |
|
| 833 |
if einfo.has_section(constants.INISECT_BEP):
|
| 834 |
# use the parameters, without overriding
|
| 835 |
for name, value in einfo.items(constants.INISECT_BEP): |
| 836 |
if name not in self.op.beparams: |
| 837 |
self.op.beparams[name] = value
|
| 838 |
# Compatibility for the old "memory" be param
|
| 839 |
if name == constants.BE_MEMORY:
|
| 840 |
if constants.BE_MAXMEM not in self.op.beparams: |
| 841 |
self.op.beparams[constants.BE_MAXMEM] = value
|
| 842 |
if constants.BE_MINMEM not in self.op.beparams: |
| 843 |
self.op.beparams[constants.BE_MINMEM] = value
|
| 844 |
else:
|
| 845 |
# try to read the parameters old style, from the main section
|
| 846 |
for name in constants.BES_PARAMETERS: |
| 847 |
if (name not in self.op.beparams and |
| 848 |
einfo.has_option(constants.INISECT_INS, name)): |
| 849 |
self.op.beparams[name] = einfo.get(constants.INISECT_INS, name)
|
| 850 |
|
| 851 |
if einfo.has_section(constants.INISECT_OSP):
|
| 852 |
# use the parameters, without overriding
|
| 853 |
for name, value in einfo.items(constants.INISECT_OSP): |
| 854 |
if name not in self.op.osparams: |
| 855 |
self.op.osparams[name] = value
|
| 856 |
|
| 857 |
def _RevertToDefaults(self, cluster): |
| 858 |
"""Revert the instance parameters to the default values.
|
| 859 |
|
| 860 |
"""
|
| 861 |
# hvparams
|
| 862 |
hv_defs = cluster.SimpleFillHV(self.op.hypervisor, self.op.os_type, {}) |
| 863 |
for name in self.op.hvparams.keys(): |
| 864 |
if name in hv_defs and hv_defs[name] == self.op.hvparams[name]: |
| 865 |
del self.op.hvparams[name] |
| 866 |
# beparams
|
| 867 |
be_defs = cluster.SimpleFillBE({})
|
| 868 |
for name in self.op.beparams.keys(): |
| 869 |
if name in be_defs and be_defs[name] == self.op.beparams[name]: |
| 870 |
del self.op.beparams[name] |
| 871 |
# nic params
|
| 872 |
nic_defs = cluster.SimpleFillNIC({})
|
| 873 |
for nic in self.op.nics: |
| 874 |
for name in constants.NICS_PARAMETERS: |
| 875 |
if name in nic and name in nic_defs and nic[name] == nic_defs[name]: |
| 876 |
del nic[name]
|
| 877 |
# osparams
|
| 878 |
os_defs = cluster.SimpleFillOS(self.op.os_type, {})
|
| 879 |
for name in self.op.osparams.keys(): |
| 880 |
if name in os_defs and os_defs[name] == self.op.osparams[name]: |
| 881 |
del self.op.osparams[name] |
| 882 |
|
| 883 |
def _CalculateFileStorageDir(self): |
| 884 |
"""Calculate final instance file storage dir.
|
| 885 |
|
| 886 |
"""
|
| 887 |
# file storage dir calculation/check
|
| 888 |
self.instance_file_storage_dir = None |
| 889 |
if self.op.disk_template in constants.DTS_FILEBASED: |
| 890 |
# build the full file storage dir path
|
| 891 |
joinargs = [] |
| 892 |
|
| 893 |
if self.op.disk_template == constants.DT_SHARED_FILE: |
| 894 |
get_fsd_fn = self.cfg.GetSharedFileStorageDir
|
| 895 |
else:
|
| 896 |
get_fsd_fn = self.cfg.GetFileStorageDir
|
| 897 |
|
| 898 |
cfg_storagedir = get_fsd_fn() |
| 899 |
if not cfg_storagedir: |
| 900 |
raise errors.OpPrereqError("Cluster file storage dir not defined", |
| 901 |
errors.ECODE_STATE) |
| 902 |
joinargs.append(cfg_storagedir) |
| 903 |
|
| 904 |
if self.op.file_storage_dir is not None: |
| 905 |
joinargs.append(self.op.file_storage_dir)
|
| 906 |
|
| 907 |
joinargs.append(self.op.instance_name)
|
| 908 |
|
| 909 |
# pylint: disable=W0142
|
| 910 |
self.instance_file_storage_dir = utils.PathJoin(*joinargs)
|
| 911 |
|
| 912 |
def CheckPrereq(self): # pylint: disable=R0914 |
| 913 |
"""Check prerequisites.
|
| 914 |
|
| 915 |
"""
|
| 916 |
self._CalculateFileStorageDir()
|
| 917 |
|
| 918 |
if self.op.mode == constants.INSTANCE_IMPORT: |
| 919 |
export_info = self._ReadExportInfo()
|
| 920 |
self._ReadExportParams(export_info)
|
| 921 |
self._old_instance_name = export_info.get(constants.INISECT_INS, "name") |
| 922 |
else:
|
| 923 |
self._old_instance_name = None |
| 924 |
|
| 925 |
if (not self.cfg.GetVGName() and |
| 926 |
self.op.disk_template not in constants.DTS_NOT_LVM): |
| 927 |
raise errors.OpPrereqError("Cluster does not support lvm-based" |
| 928 |
" instances", errors.ECODE_STATE)
|
| 929 |
|
| 930 |
if (self.op.hypervisor is None or |
| 931 |
self.op.hypervisor == constants.VALUE_AUTO):
|
| 932 |
self.op.hypervisor = self.cfg.GetHypervisorType() |
| 933 |
|
| 934 |
cluster = self.cfg.GetClusterInfo()
|
| 935 |
enabled_hvs = cluster.enabled_hypervisors |
| 936 |
if self.op.hypervisor not in enabled_hvs: |
| 937 |
raise errors.OpPrereqError("Selected hypervisor (%s) not enabled in the" |
| 938 |
" cluster (%s)" %
|
| 939 |
(self.op.hypervisor, ",".join(enabled_hvs)), |
| 940 |
errors.ECODE_STATE) |
| 941 |
|
| 942 |
# Check tag validity
|
| 943 |
for tag in self.op.tags: |
| 944 |
objects.TaggableObject.ValidateTag(tag) |
| 945 |
|
| 946 |
# check hypervisor parameter syntax (locally)
|
| 947 |
utils.ForceDictType(self.op.hvparams, constants.HVS_PARAMETER_TYPES)
|
| 948 |
filled_hvp = cluster.SimpleFillHV(self.op.hypervisor, self.op.os_type, |
| 949 |
self.op.hvparams)
|
| 950 |
hv_type = hypervisor.GetHypervisorClass(self.op.hypervisor)
|
| 951 |
hv_type.CheckParameterSyntax(filled_hvp) |
| 952 |
self.hv_full = filled_hvp
|
| 953 |
# check that we don't specify global parameters on an instance
|
| 954 |
_CheckParamsNotGlobal(self.op.hvparams, constants.HVC_GLOBALS, "hypervisor", |
| 955 |
"instance", "cluster") |
| 956 |
|
| 957 |
# fill and remember the beparams dict
|
| 958 |
self.be_full = _ComputeFullBeParams(self.op, cluster) |
| 959 |
|
| 960 |
# build os parameters
|
| 961 |
self.os_full = cluster.SimpleFillOS(self.op.os_type, self.op.osparams) |
| 962 |
|
| 963 |
# now that hvp/bep are in final format, let's reset to defaults,
|
| 964 |
# if told to do so
|
| 965 |
if self.op.identify_defaults: |
| 966 |
self._RevertToDefaults(cluster)
|
| 967 |
|
| 968 |
# NIC buildup
|
| 969 |
self.nics = _ComputeNics(self.op, cluster, self.check_ip, self.cfg, |
| 970 |
self.proc.GetECId())
|
| 971 |
|
| 972 |
# disk checks/pre-build
|
| 973 |
default_vg = self.cfg.GetVGName()
|
| 974 |
self.disks = _ComputeDisks(self.op, default_vg) |
| 975 |
|
| 976 |
if self.op.mode == constants.INSTANCE_IMPORT: |
| 977 |
disk_images = [] |
| 978 |
for idx in range(len(self.disks)): |
| 979 |
option = "disk%d_dump" % idx
|
| 980 |
if export_info.has_option(constants.INISECT_INS, option):
|
| 981 |
# FIXME: are the old os-es, disk sizes, etc. useful?
|
| 982 |
export_name = export_info.get(constants.INISECT_INS, option) |
| 983 |
image = utils.PathJoin(self.op.src_path, export_name)
|
| 984 |
disk_images.append(image) |
| 985 |
else:
|
| 986 |
disk_images.append(False)
|
| 987 |
|
| 988 |
self.src_images = disk_images
|
| 989 |
|
| 990 |
if self.op.instance_name == self._old_instance_name: |
| 991 |
for idx, nic in enumerate(self.nics): |
| 992 |
if nic.mac == constants.VALUE_AUTO:
|
| 993 |
nic_mac_ini = "nic%d_mac" % idx
|
| 994 |
nic.mac = export_info.get(constants.INISECT_INS, nic_mac_ini) |
| 995 |
|
| 996 |
# ENDIF: self.op.mode == constants.INSTANCE_IMPORT
|
| 997 |
|
| 998 |
# ip ping checks (we use the same ip that was resolved in ExpandNames)
|
| 999 |
if self.op.ip_check: |
| 1000 |
if netutils.TcpPing(self.check_ip, constants.DEFAULT_NODED_PORT): |
| 1001 |
raise errors.OpPrereqError("IP %s of instance %s already in use" % |
| 1002 |
(self.check_ip, self.op.instance_name), |
| 1003 |
errors.ECODE_NOTUNIQUE) |
| 1004 |
|
| 1005 |
#### mac address generation
|
| 1006 |
# By generating here the mac address both the allocator and the hooks get
|
| 1007 |
# the real final mac address rather than the 'auto' or 'generate' value.
|
| 1008 |
# There is a race condition between the generation and the instance object
|
| 1009 |
# creation, which means that we know the mac is valid now, but we're not
|
| 1010 |
# sure it will be when we actually add the instance. If things go bad
|
| 1011 |
# adding the instance will abort because of a duplicate mac, and the
|
| 1012 |
# creation job will fail.
|
| 1013 |
for nic in self.nics: |
| 1014 |
if nic.mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE): |
| 1015 |
nic.mac = self.cfg.GenerateMAC(nic.network, self.proc.GetECId()) |
| 1016 |
|
| 1017 |
#### allocator run
|
| 1018 |
|
| 1019 |
if self.op.iallocator is not None: |
| 1020 |
self._RunAllocator()
|
| 1021 |
|
| 1022 |
# Release all unneeded node locks
|
| 1023 |
keep_locks = filter(None, [self.op.pnode, self.op.snode, self.op.src_node]) |
| 1024 |
_ReleaseLocks(self, locking.LEVEL_NODE, keep=keep_locks)
|
| 1025 |
_ReleaseLocks(self, locking.LEVEL_NODE_RES, keep=keep_locks)
|
| 1026 |
_ReleaseLocks(self, locking.LEVEL_NODE_ALLOC)
|
| 1027 |
|
| 1028 |
assert (self.owned_locks(locking.LEVEL_NODE) == |
| 1029 |
self.owned_locks(locking.LEVEL_NODE_RES)), \
|
| 1030 |
"Node locks differ from node resource locks"
|
| 1031 |
|
| 1032 |
#### node related checks
|
| 1033 |
|
| 1034 |
# check primary node
|
| 1035 |
self.pnode = pnode = self.cfg.GetNodeInfo(self.op.pnode) |
| 1036 |
assert self.pnode is not None, \ |
| 1037 |
"Cannot retrieve locked node %s" % self.op.pnode |
| 1038 |
if pnode.offline:
|
| 1039 |
raise errors.OpPrereqError("Cannot use offline primary node '%s'" % |
| 1040 |
pnode.name, errors.ECODE_STATE) |
| 1041 |
if pnode.drained:
|
| 1042 |
raise errors.OpPrereqError("Cannot use drained primary node '%s'" % |
| 1043 |
pnode.name, errors.ECODE_STATE) |
| 1044 |
if not pnode.vm_capable: |
| 1045 |
raise errors.OpPrereqError("Cannot use non-vm_capable primary node" |
| 1046 |
" '%s'" % pnode.name, errors.ECODE_STATE)
|
| 1047 |
|
| 1048 |
self.secondaries = []
|
| 1049 |
|
| 1050 |
# Fill in any IPs from IP pools. This must happen here, because we need to
|
| 1051 |
# know the nic's primary node, as specified by the iallocator
|
| 1052 |
for idx, nic in enumerate(self.nics): |
| 1053 |
net_uuid = nic.network |
| 1054 |
if net_uuid is not None: |
| 1055 |
nobj = self.cfg.GetNetwork(net_uuid)
|
| 1056 |
netparams = self.cfg.GetGroupNetParams(net_uuid, self.pnode.name) |
| 1057 |
if netparams is None: |
| 1058 |
raise errors.OpPrereqError("No netparams found for network" |
| 1059 |
" %s. Propably not connected to"
|
| 1060 |
" node's %s nodegroup" %
|
| 1061 |
(nobj.name, self.pnode.name),
|
| 1062 |
errors.ECODE_INVAL) |
| 1063 |
self.LogInfo("NIC/%d inherits netparams %s" % |
| 1064 |
(idx, netparams.values())) |
| 1065 |
nic.nicparams = dict(netparams)
|
| 1066 |
if nic.ip is not None: |
| 1067 |
if nic.ip.lower() == constants.NIC_IP_POOL:
|
| 1068 |
try:
|
| 1069 |
nic.ip = self.cfg.GenerateIp(net_uuid, self.proc.GetECId()) |
| 1070 |
except errors.ReservationError:
|
| 1071 |
raise errors.OpPrereqError("Unable to get a free IP for NIC %d" |
| 1072 |
" from the address pool" % idx,
|
| 1073 |
errors.ECODE_STATE) |
| 1074 |
self.LogInfo("Chose IP %s from network %s", nic.ip, nobj.name) |
| 1075 |
else:
|
| 1076 |
try:
|
| 1077 |
self.cfg.ReserveIp(net_uuid, nic.ip, self.proc.GetECId()) |
| 1078 |
except errors.ReservationError:
|
| 1079 |
raise errors.OpPrereqError("IP address %s already in use" |
| 1080 |
" or does not belong to network %s" %
|
| 1081 |
(nic.ip, nobj.name), |
| 1082 |
errors.ECODE_NOTUNIQUE) |
| 1083 |
|
| 1084 |
# net is None, ip None or given
|
| 1085 |
elif self.op.conflicts_check: |
| 1086 |
_CheckForConflictingIp(self, nic.ip, self.pnode.name) |
| 1087 |
|
| 1088 |
# mirror node verification
|
| 1089 |
if self.op.disk_template in constants.DTS_INT_MIRROR: |
| 1090 |
if self.op.snode == pnode.name: |
| 1091 |
raise errors.OpPrereqError("The secondary node cannot be the" |
| 1092 |
" primary node", errors.ECODE_INVAL)
|
| 1093 |
_CheckNodeOnline(self, self.op.snode) |
| 1094 |
_CheckNodeNotDrained(self, self.op.snode) |
| 1095 |
_CheckNodeVmCapable(self, self.op.snode) |
| 1096 |
self.secondaries.append(self.op.snode) |
| 1097 |
|
| 1098 |
snode = self.cfg.GetNodeInfo(self.op.snode) |
| 1099 |
if pnode.group != snode.group:
|
| 1100 |
self.LogWarning("The primary and secondary nodes are in two" |
| 1101 |
" different node groups; the disk parameters"
|
| 1102 |
" from the first disk's node group will be"
|
| 1103 |
" used")
|
| 1104 |
|
| 1105 |
if not self.op.disk_template in constants.DTS_EXCL_STORAGE: |
| 1106 |
nodes = [pnode] |
| 1107 |
if self.op.disk_template in constants.DTS_INT_MIRROR: |
| 1108 |
nodes.append(snode) |
| 1109 |
has_es = lambda n: _IsExclusiveStorageEnabledNode(self.cfg, n) |
| 1110 |
if compat.any(map(has_es, nodes)): |
| 1111 |
raise errors.OpPrereqError("Disk template %s not supported with" |
| 1112 |
" exclusive storage" % self.op.disk_template, |
| 1113 |
errors.ECODE_STATE) |
| 1114 |
|
| 1115 |
nodenames = [pnode.name] + self.secondaries
|
| 1116 |
|
| 1117 |
if not self.adopt_disks: |
| 1118 |
if self.op.disk_template == constants.DT_RBD: |
| 1119 |
# _CheckRADOSFreeSpace() is just a placeholder.
|
| 1120 |
# Any function that checks prerequisites can be placed here.
|
| 1121 |
# Check if there is enough space on the RADOS cluster.
|
| 1122 |
_CheckRADOSFreeSpace() |
| 1123 |
elif self.op.disk_template == constants.DT_EXT: |
| 1124 |
# FIXME: Function that checks prereqs if needed
|
| 1125 |
pass
|
| 1126 |
else:
|
| 1127 |
# Check lv size requirements, if not adopting
|
| 1128 |
req_sizes = _ComputeDiskSizePerVG(self.op.disk_template, self.disks) |
| 1129 |
_CheckNodesFreeDiskPerVG(self, nodenames, req_sizes)
|
| 1130 |
|
| 1131 |
elif self.op.disk_template == constants.DT_PLAIN: # Check the adoption data |
| 1132 |
all_lvs = set(["%s/%s" % (disk[constants.IDISK_VG], |
| 1133 |
disk[constants.IDISK_ADOPT]) |
| 1134 |
for disk in self.disks]) |
| 1135 |
if len(all_lvs) != len(self.disks): |
| 1136 |
raise errors.OpPrereqError("Duplicate volume names given for adoption", |
| 1137 |
errors.ECODE_INVAL) |
| 1138 |
for lv_name in all_lvs: |
| 1139 |
try:
|
| 1140 |
# FIXME: lv_name here is "vg/lv" need to ensure that other calls
|
| 1141 |
# to ReserveLV uses the same syntax
|
| 1142 |
self.cfg.ReserveLV(lv_name, self.proc.GetECId()) |
| 1143 |
except errors.ReservationError:
|
| 1144 |
raise errors.OpPrereqError("LV named %s used by another instance" % |
| 1145 |
lv_name, errors.ECODE_NOTUNIQUE) |
| 1146 |
|
| 1147 |
vg_names = self.rpc.call_vg_list([pnode.name])[pnode.name]
|
| 1148 |
vg_names.Raise("Cannot get VG information from node %s" % pnode.name)
|
| 1149 |
|
| 1150 |
node_lvs = self.rpc.call_lv_list([pnode.name],
|
| 1151 |
vg_names.payload.keys())[pnode.name] |
| 1152 |
node_lvs.Raise("Cannot get LV information from node %s" % pnode.name)
|
| 1153 |
node_lvs = node_lvs.payload |
| 1154 |
|
| 1155 |
delta = all_lvs.difference(node_lvs.keys()) |
| 1156 |
if delta:
|
| 1157 |
raise errors.OpPrereqError("Missing logical volume(s): %s" % |
| 1158 |
utils.CommaJoin(delta), |
| 1159 |
errors.ECODE_INVAL) |
| 1160 |
online_lvs = [lv for lv in all_lvs if node_lvs[lv][2]] |
| 1161 |
if online_lvs:
|
| 1162 |
raise errors.OpPrereqError("Online logical volumes found, cannot" |
| 1163 |
" adopt: %s" % utils.CommaJoin(online_lvs),
|
| 1164 |
errors.ECODE_STATE) |
| 1165 |
# update the size of disk based on what is found
|
| 1166 |
for dsk in self.disks: |
| 1167 |
dsk[constants.IDISK_SIZE] = \ |
| 1168 |
int(float(node_lvs["%s/%s" % (dsk[constants.IDISK_VG], |
| 1169 |
dsk[constants.IDISK_ADOPT])][0]))
|
| 1170 |
|
| 1171 |
elif self.op.disk_template == constants.DT_BLOCK: |
| 1172 |
# Normalize and de-duplicate device paths
|
| 1173 |
all_disks = set([os.path.abspath(disk[constants.IDISK_ADOPT])
|
| 1174 |
for disk in self.disks]) |
| 1175 |
if len(all_disks) != len(self.disks): |
| 1176 |
raise errors.OpPrereqError("Duplicate disk names given for adoption", |
| 1177 |
errors.ECODE_INVAL) |
| 1178 |
baddisks = [d for d in all_disks |
| 1179 |
if not d.startswith(constants.ADOPTABLE_BLOCKDEV_ROOT)] |
| 1180 |
if baddisks:
|
| 1181 |
raise errors.OpPrereqError("Device node(s) %s lie outside %s and" |
| 1182 |
" cannot be adopted" %
|
| 1183 |
(utils.CommaJoin(baddisks), |
| 1184 |
constants.ADOPTABLE_BLOCKDEV_ROOT), |
| 1185 |
errors.ECODE_INVAL) |
| 1186 |
|
| 1187 |
node_disks = self.rpc.call_bdev_sizes([pnode.name],
|
| 1188 |
list(all_disks))[pnode.name]
|
| 1189 |
node_disks.Raise("Cannot get block device information from node %s" %
|
| 1190 |
pnode.name) |
| 1191 |
node_disks = node_disks.payload |
| 1192 |
delta = all_disks.difference(node_disks.keys()) |
| 1193 |
if delta:
|
| 1194 |
raise errors.OpPrereqError("Missing block device(s): %s" % |
| 1195 |
utils.CommaJoin(delta), |
| 1196 |
errors.ECODE_INVAL) |
| 1197 |
for dsk in self.disks: |
| 1198 |
dsk[constants.IDISK_SIZE] = \ |
| 1199 |
int(float(node_disks[dsk[constants.IDISK_ADOPT]])) |
| 1200 |
|
| 1201 |
# Verify instance specs
|
| 1202 |
spindle_use = self.be_full.get(constants.BE_SPINDLE_USE, None) |
| 1203 |
ispec = {
|
| 1204 |
constants.ISPEC_MEM_SIZE: self.be_full.get(constants.BE_MAXMEM, None), |
| 1205 |
constants.ISPEC_CPU_COUNT: self.be_full.get(constants.BE_VCPUS, None), |
| 1206 |
constants.ISPEC_DISK_COUNT: len(self.disks), |
| 1207 |
constants.ISPEC_DISK_SIZE: [disk[constants.IDISK_SIZE] |
| 1208 |
for disk in self.disks], |
| 1209 |
constants.ISPEC_NIC_COUNT: len(self.nics), |
| 1210 |
constants.ISPEC_SPINDLE_USE: spindle_use, |
| 1211 |
} |
| 1212 |
|
| 1213 |
group_info = self.cfg.GetNodeGroup(pnode.group)
|
| 1214 |
ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster, group_info) |
| 1215 |
res = _ComputeIPolicyInstanceSpecViolation(ipolicy, ispec, |
| 1216 |
self.op.disk_template)
|
| 1217 |
if not self.op.ignore_ipolicy and res: |
| 1218 |
msg = ("Instance allocation to group %s (%s) violates policy: %s" %
|
| 1219 |
(pnode.group, group_info.name, utils.CommaJoin(res))) |
| 1220 |
raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
|
| 1221 |
|
| 1222 |
_CheckHVParams(self, nodenames, self.op.hypervisor, self.op.hvparams) |
| 1223 |
|
| 1224 |
_CheckNodeHasOS(self, pnode.name, self.op.os_type, self.op.force_variant) |
| 1225 |
# check OS parameters (remotely)
|
| 1226 |
_CheckOSParams(self, True, nodenames, self.op.os_type, self.os_full) |
| 1227 |
|
| 1228 |
_CheckNicsBridgesExist(self, self.nics, self.pnode.name) |
| 1229 |
|
| 1230 |
#TODO: _CheckExtParams (remotely)
|
| 1231 |
# Check parameters for extstorage
|
| 1232 |
|
| 1233 |
# memory check on primary node
|
| 1234 |
#TODO(dynmem): use MINMEM for checking
|
| 1235 |
if self.op.start: |
| 1236 |
_CheckNodeFreeMemory(self, self.pnode.name, |
| 1237 |
"creating instance %s" % self.op.instance_name, |
| 1238 |
self.be_full[constants.BE_MAXMEM],
|
| 1239 |
self.op.hypervisor)
|
| 1240 |
|
| 1241 |
self.dry_run_result = list(nodenames) |
| 1242 |
|
| 1243 |
def Exec(self, feedback_fn): |
| 1244 |
"""Create and add the instance to the cluster.
|
| 1245 |
|
| 1246 |
"""
|
| 1247 |
instance = self.op.instance_name
|
| 1248 |
pnode_name = self.pnode.name
|
| 1249 |
|
| 1250 |
assert not (self.owned_locks(locking.LEVEL_NODE_RES) - |
| 1251 |
self.owned_locks(locking.LEVEL_NODE)), \
|
| 1252 |
"Node locks differ from node resource locks"
|
| 1253 |
assert not self.glm.is_owned(locking.LEVEL_NODE_ALLOC) |
| 1254 |
|
| 1255 |
ht_kind = self.op.hypervisor
|
| 1256 |
if ht_kind in constants.HTS_REQ_PORT: |
| 1257 |
network_port = self.cfg.AllocatePort()
|
| 1258 |
else:
|
| 1259 |
network_port = None
|
| 1260 |
|
| 1261 |
# This is ugly but we got a chicken-egg problem here
|
| 1262 |
# We can only take the group disk parameters, as the instance
|
| 1263 |
# has no disks yet (we are generating them right here).
|
| 1264 |
node = self.cfg.GetNodeInfo(pnode_name)
|
| 1265 |
nodegroup = self.cfg.GetNodeGroup(node.group)
|
| 1266 |
disks = _GenerateDiskTemplate(self,
|
| 1267 |
self.op.disk_template,
|
| 1268 |
instance, pnode_name, |
| 1269 |
self.secondaries,
|
| 1270 |
self.disks,
|
| 1271 |
self.instance_file_storage_dir,
|
| 1272 |
self.op.file_driver,
|
| 1273 |
0,
|
| 1274 |
feedback_fn, |
| 1275 |
self.cfg.GetGroupDiskParams(nodegroup))
|
| 1276 |
|
| 1277 |
iobj = objects.Instance(name=instance, os=self.op.os_type,
|
| 1278 |
primary_node=pnode_name, |
| 1279 |
nics=self.nics, disks=disks,
|
| 1280 |
disk_template=self.op.disk_template,
|
| 1281 |
admin_state=constants.ADMINST_DOWN, |
| 1282 |
network_port=network_port, |
| 1283 |
beparams=self.op.beparams,
|
| 1284 |
hvparams=self.op.hvparams,
|
| 1285 |
hypervisor=self.op.hypervisor,
|
| 1286 |
osparams=self.op.osparams,
|
| 1287 |
) |
| 1288 |
|
| 1289 |
if self.op.tags: |
| 1290 |
for tag in self.op.tags: |
| 1291 |
iobj.AddTag(tag) |
| 1292 |
|
| 1293 |
if self.adopt_disks: |
| 1294 |
if self.op.disk_template == constants.DT_PLAIN: |
| 1295 |
# rename LVs to the newly-generated names; we need to construct
|
| 1296 |
# 'fake' LV disks with the old data, plus the new unique_id
|
| 1297 |
tmp_disks = [objects.Disk.FromDict(v.ToDict()) for v in disks] |
| 1298 |
rename_to = [] |
| 1299 |
for t_dsk, a_dsk in zip(tmp_disks, self.disks): |
| 1300 |
rename_to.append(t_dsk.logical_id) |
| 1301 |
t_dsk.logical_id = (t_dsk.logical_id[0], a_dsk[constants.IDISK_ADOPT])
|
| 1302 |
self.cfg.SetDiskID(t_dsk, pnode_name)
|
| 1303 |
result = self.rpc.call_blockdev_rename(pnode_name,
|
| 1304 |
zip(tmp_disks, rename_to))
|
| 1305 |
result.Raise("Failed to rename adoped LVs")
|
| 1306 |
else:
|
| 1307 |
feedback_fn("* creating instance disks...")
|
| 1308 |
try:
|
| 1309 |
_CreateDisks(self, iobj)
|
| 1310 |
except errors.OpExecError:
|
| 1311 |
self.LogWarning("Device creation failed") |
| 1312 |
self.cfg.ReleaseDRBDMinors(instance)
|
| 1313 |
raise
|
| 1314 |
|
| 1315 |
feedback_fn("adding instance %s to cluster config" % instance)
|
| 1316 |
|
| 1317 |
self.cfg.AddInstance(iobj, self.proc.GetECId()) |
| 1318 |
|
| 1319 |
# Declare that we don't want to remove the instance lock anymore, as we've
|
| 1320 |
# added the instance to the config
|
| 1321 |
del self.remove_locks[locking.LEVEL_INSTANCE] |
| 1322 |
|
| 1323 |
if self.op.mode == constants.INSTANCE_IMPORT: |
| 1324 |
# Release unused nodes
|
| 1325 |
_ReleaseLocks(self, locking.LEVEL_NODE, keep=[self.op.src_node]) |
| 1326 |
else:
|
| 1327 |
# Release all nodes
|
| 1328 |
_ReleaseLocks(self, locking.LEVEL_NODE)
|
| 1329 |
|
| 1330 |
disk_abort = False
|
| 1331 |
if not self.adopt_disks and self.cfg.GetClusterInfo().prealloc_wipe_disks: |
| 1332 |
feedback_fn("* wiping instance disks...")
|
| 1333 |
try:
|
| 1334 |
_WipeDisks(self, iobj)
|
| 1335 |
except errors.OpExecError, err:
|
| 1336 |
logging.exception("Wiping disks failed")
|
| 1337 |
self.LogWarning("Wiping instance disks failed (%s)", err) |
| 1338 |
disk_abort = True
|
| 1339 |
|
| 1340 |
if disk_abort:
|
| 1341 |
# Something is already wrong with the disks, don't do anything else
|
| 1342 |
pass
|
| 1343 |
elif self.op.wait_for_sync: |
| 1344 |
disk_abort = not _WaitForSync(self, iobj) |
| 1345 |
elif iobj.disk_template in constants.DTS_INT_MIRROR: |
| 1346 |
# make sure the disks are not degraded (still sync-ing is ok)
|
| 1347 |
feedback_fn("* checking mirrors status")
|
| 1348 |
disk_abort = not _WaitForSync(self, iobj, oneshot=True) |
| 1349 |
else:
|
| 1350 |
disk_abort = False
|
| 1351 |
|
| 1352 |
if disk_abort:
|
| 1353 |
_RemoveDisks(self, iobj)
|
| 1354 |
self.cfg.RemoveInstance(iobj.name)
|
| 1355 |
# Make sure the instance lock gets removed
|
| 1356 |
self.remove_locks[locking.LEVEL_INSTANCE] = iobj.name
|
| 1357 |
raise errors.OpExecError("There are some degraded disks for" |
| 1358 |
" this instance")
|
| 1359 |
|
| 1360 |
# Release all node resource locks
|
| 1361 |
_ReleaseLocks(self, locking.LEVEL_NODE_RES)
|
| 1362 |
|
| 1363 |
if iobj.disk_template != constants.DT_DISKLESS and not self.adopt_disks: |
| 1364 |
# we need to set the disks ID to the primary node, since the
|
| 1365 |
# preceding code might or might have not done it, depending on
|
| 1366 |
# disk template and other options
|
| 1367 |
for disk in iobj.disks: |
| 1368 |
self.cfg.SetDiskID(disk, pnode_name)
|
| 1369 |
if self.op.mode == constants.INSTANCE_CREATE: |
| 1370 |
if not self.op.no_install: |
| 1371 |
pause_sync = (iobj.disk_template in constants.DTS_INT_MIRROR and |
| 1372 |
not self.op.wait_for_sync) |
| 1373 |
if pause_sync:
|
| 1374 |
feedback_fn("* pausing disk sync to install instance OS")
|
| 1375 |
result = self.rpc.call_blockdev_pause_resume_sync(pnode_name,
|
| 1376 |
(iobj.disks, |
| 1377 |
iobj), True)
|
| 1378 |
for idx, success in enumerate(result.payload): |
| 1379 |
if not success: |
| 1380 |
logging.warn("pause-sync of instance %s for disk %d failed",
|
| 1381 |
instance, idx) |
| 1382 |
|
| 1383 |
feedback_fn("* running the instance OS create scripts...")
|
| 1384 |
# FIXME: pass debug option from opcode to backend
|
| 1385 |
os_add_result = \ |
| 1386 |
self.rpc.call_instance_os_add(pnode_name, (iobj, None), False, |
| 1387 |
self.op.debug_level)
|
| 1388 |
if pause_sync:
|
| 1389 |
feedback_fn("* resuming disk sync")
|
| 1390 |
result = self.rpc.call_blockdev_pause_resume_sync(pnode_name,
|
| 1391 |
(iobj.disks, |
| 1392 |
iobj), False)
|
| 1393 |
for idx, success in enumerate(result.payload): |
| 1394 |
if not success: |
| 1395 |
logging.warn("resume-sync of instance %s for disk %d failed",
|
| 1396 |
instance, idx) |
| 1397 |
|
| 1398 |
os_add_result.Raise("Could not add os for instance %s"
|
| 1399 |
" on node %s" % (instance, pnode_name))
|
| 1400 |
|
| 1401 |
else:
|
| 1402 |
if self.op.mode == constants.INSTANCE_IMPORT: |
| 1403 |
feedback_fn("* running the instance OS import scripts...")
|
| 1404 |
|
| 1405 |
transfers = [] |
| 1406 |
|
| 1407 |
for idx, image in enumerate(self.src_images): |
| 1408 |
if not image: |
| 1409 |
continue
|
| 1410 |
|
| 1411 |
# FIXME: pass debug option from opcode to backend
|
| 1412 |
dt = masterd.instance.DiskTransfer("disk/%s" % idx,
|
| 1413 |
constants.IEIO_FILE, (image, ), |
| 1414 |
constants.IEIO_SCRIPT, |
| 1415 |
(iobj.disks[idx], idx), |
| 1416 |
None)
|
| 1417 |
transfers.append(dt) |
| 1418 |
|
| 1419 |
import_result = \ |
| 1420 |
masterd.instance.TransferInstanceData(self, feedback_fn,
|
| 1421 |
self.op.src_node, pnode_name,
|
| 1422 |
self.pnode.secondary_ip,
|
| 1423 |
iobj, transfers) |
| 1424 |
if not compat.all(import_result): |
| 1425 |
self.LogWarning("Some disks for instance %s on node %s were not" |
| 1426 |
" imported successfully" % (instance, pnode_name))
|
| 1427 |
|
| 1428 |
rename_from = self._old_instance_name
|
| 1429 |
|
| 1430 |
elif self.op.mode == constants.INSTANCE_REMOTE_IMPORT: |
| 1431 |
feedback_fn("* preparing remote import...")
|
| 1432 |
# The source cluster will stop the instance before attempting to make
|
| 1433 |
# a connection. In some cases stopping an instance can take a long
|
| 1434 |
# time, hence the shutdown timeout is added to the connection
|
| 1435 |
# timeout.
|
| 1436 |
connect_timeout = (constants.RIE_CONNECT_TIMEOUT + |
| 1437 |
self.op.source_shutdown_timeout)
|
| 1438 |
timeouts = masterd.instance.ImportExportTimeouts(connect_timeout) |
| 1439 |
|
| 1440 |
assert iobj.primary_node == self.pnode.name |
| 1441 |
disk_results = \ |
| 1442 |
masterd.instance.RemoteImport(self, feedback_fn, iobj, self.pnode, |
| 1443 |
self.source_x509_ca,
|
| 1444 |
self._cds, timeouts)
|
| 1445 |
if not compat.all(disk_results): |
| 1446 |
# TODO: Should the instance still be started, even if some disks
|
| 1447 |
# failed to import (valid for local imports, too)?
|
| 1448 |
self.LogWarning("Some disks for instance %s on node %s were not" |
| 1449 |
" imported successfully" % (instance, pnode_name))
|
| 1450 |
|
| 1451 |
rename_from = self.source_instance_name
|
| 1452 |
|
| 1453 |
else:
|
| 1454 |
# also checked in the prereq part
|
| 1455 |
raise errors.ProgrammerError("Unknown OS initialization mode '%s'" |
| 1456 |
% self.op.mode)
|
| 1457 |
|
| 1458 |
# Run rename script on newly imported instance
|
| 1459 |
assert iobj.name == instance
|
| 1460 |
feedback_fn("Running rename script for %s" % instance)
|
| 1461 |
result = self.rpc.call_instance_run_rename(pnode_name, iobj,
|
| 1462 |
rename_from, |
| 1463 |
self.op.debug_level)
|
| 1464 |
if result.fail_msg:
|
| 1465 |
self.LogWarning("Failed to run rename script for %s on node" |
| 1466 |
" %s: %s" % (instance, pnode_name, result.fail_msg))
|
| 1467 |
|
| 1468 |
assert not self.owned_locks(locking.LEVEL_NODE_RES) |
| 1469 |
|
| 1470 |
if self.op.start: |
| 1471 |
iobj.admin_state = constants.ADMINST_UP |
| 1472 |
self.cfg.Update(iobj, feedback_fn)
|
| 1473 |
logging.info("Starting instance %s on node %s", instance, pnode_name)
|
| 1474 |
feedback_fn("* starting instance...")
|
| 1475 |
result = self.rpc.call_instance_start(pnode_name, (iobj, None, None), |
| 1476 |
False, self.op.reason) |
| 1477 |
result.Raise("Could not start instance")
|
| 1478 |
|
| 1479 |
return list(iobj.all_nodes) |
| 1480 |
|
| 1481 |
|
| 1482 |
class LUInstanceRename(LogicalUnit): |
| 1483 |
"""Rename an instance.
|
| 1484 |
|
| 1485 |
"""
|
| 1486 |
HPATH = "instance-rename"
|
| 1487 |
HTYPE = constants.HTYPE_INSTANCE |
| 1488 |
|
| 1489 |
def CheckArguments(self): |
| 1490 |
"""Check arguments.
|
| 1491 |
|
| 1492 |
"""
|
| 1493 |
if self.op.ip_check and not self.op.name_check: |
| 1494 |
# TODO: make the ip check more flexible and not depend on the name check
|
| 1495 |
raise errors.OpPrereqError("IP address check requires a name check", |
| 1496 |
errors.ECODE_INVAL) |
| 1497 |
|
| 1498 |
def BuildHooksEnv(self): |
| 1499 |
"""Build hooks env.
|
| 1500 |
|
| 1501 |
This runs on master, primary and secondary nodes of the instance.
|
| 1502 |
|
| 1503 |
"""
|
| 1504 |
env = _BuildInstanceHookEnvByObject(self, self.instance) |
| 1505 |
env["INSTANCE_NEW_NAME"] = self.op.new_name |
| 1506 |
return env
|
| 1507 |
|
| 1508 |
def BuildHooksNodes(self): |
| 1509 |
"""Build hooks nodes.
|
| 1510 |
|
| 1511 |
"""
|
| 1512 |
nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes) |
| 1513 |
return (nl, nl)
|
| 1514 |
|
| 1515 |
def CheckPrereq(self): |
| 1516 |
"""Check prerequisites.
|
| 1517 |
|
| 1518 |
This checks that the instance is in the cluster and is not running.
|
| 1519 |
|
| 1520 |
"""
|
| 1521 |
self.op.instance_name = _ExpandInstanceName(self.cfg, |
| 1522 |
self.op.instance_name)
|
| 1523 |
instance = self.cfg.GetInstanceInfo(self.op.instance_name) |
| 1524 |
assert instance is not None |
| 1525 |
_CheckNodeOnline(self, instance.primary_node)
|
| 1526 |
_CheckInstanceState(self, instance, INSTANCE_NOT_RUNNING,
|
| 1527 |
msg="cannot rename")
|
| 1528 |
self.instance = instance
|
| 1529 |
|
| 1530 |
new_name = self.op.new_name
|
| 1531 |
if self.op.name_check: |
| 1532 |
hostname = _CheckHostnameSane(self, new_name)
|
| 1533 |
new_name = self.op.new_name = hostname.name
|
| 1534 |
if (self.op.ip_check and |
| 1535 |
netutils.TcpPing(hostname.ip, constants.DEFAULT_NODED_PORT)): |
| 1536 |
raise errors.OpPrereqError("IP %s of instance %s already in use" % |
| 1537 |
(hostname.ip, new_name), |
| 1538 |
errors.ECODE_NOTUNIQUE) |
| 1539 |
|
| 1540 |
instance_list = self.cfg.GetInstanceList()
|
| 1541 |
if new_name in instance_list and new_name != instance.name: |
| 1542 |
raise errors.OpPrereqError("Instance '%s' is already in the cluster" % |
| 1543 |
new_name, errors.ECODE_EXISTS) |
| 1544 |
|
| 1545 |
def Exec(self, feedback_fn): |
| 1546 |
"""Rename the instance.
|
| 1547 |
|
| 1548 |
"""
|
| 1549 |
inst = self.instance
|
| 1550 |
old_name = inst.name |
| 1551 |
|
| 1552 |
rename_file_storage = False
|
| 1553 |
if (inst.disk_template in constants.DTS_FILEBASED and |
| 1554 |
self.op.new_name != inst.name):
|
| 1555 |
old_file_storage_dir = os.path.dirname(inst.disks[0].logical_id[1]) |
| 1556 |
rename_file_storage = True
|
| 1557 |
|
| 1558 |
self.cfg.RenameInstance(inst.name, self.op.new_name) |
| 1559 |
# Change the instance lock. This is definitely safe while we hold the BGL.
|
| 1560 |
# Otherwise the new lock would have to be added in acquired mode.
|
| 1561 |
assert self.REQ_BGL |
| 1562 |
assert locking.BGL in self.owned_locks(locking.LEVEL_CLUSTER) |
| 1563 |
self.glm.remove(locking.LEVEL_INSTANCE, old_name)
|
| 1564 |
self.glm.add(locking.LEVEL_INSTANCE, self.op.new_name) |
| 1565 |
|
| 1566 |
# re-read the instance from the configuration after rename
|
| 1567 |
inst = self.cfg.GetInstanceInfo(self.op.new_name) |
| 1568 |
|
| 1569 |
if rename_file_storage:
|
| 1570 |
new_file_storage_dir = os.path.dirname(inst.disks[0].logical_id[1]) |
| 1571 |
result = self.rpc.call_file_storage_dir_rename(inst.primary_node,
|
| 1572 |
old_file_storage_dir, |
| 1573 |
new_file_storage_dir) |
| 1574 |
result.Raise("Could not rename on node %s directory '%s' to '%s'"
|
| 1575 |
" (but the instance has been renamed in Ganeti)" %
|
| 1576 |
(inst.primary_node, old_file_storage_dir, |
| 1577 |
new_file_storage_dir)) |
| 1578 |
|
| 1579 |
_StartInstanceDisks(self, inst, None) |
| 1580 |
# update info on disks
|
| 1581 |
info = _GetInstanceInfoText(inst) |
| 1582 |
for (idx, disk) in enumerate(inst.disks): |
| 1583 |
for node in inst.all_nodes: |
| 1584 |
self.cfg.SetDiskID(disk, node)
|
| 1585 |
result = self.rpc.call_blockdev_setinfo(node, disk, info)
|
| 1586 |
if result.fail_msg:
|
| 1587 |
self.LogWarning("Error setting info on node %s for disk %s: %s", |
| 1588 |
node, idx, result.fail_msg) |
| 1589 |
try:
|
| 1590 |
result = self.rpc.call_instance_run_rename(inst.primary_node, inst,
|
| 1591 |
old_name, self.op.debug_level)
|
| 1592 |
msg = result.fail_msg |
| 1593 |
if msg:
|
| 1594 |
msg = ("Could not run OS rename script for instance %s on node %s"
|
| 1595 |
" (but the instance has been renamed in Ganeti): %s" %
|
| 1596 |
(inst.name, inst.primary_node, msg)) |
| 1597 |
self.LogWarning(msg)
|
| 1598 |
finally:
|
| 1599 |
_ShutdownInstanceDisks(self, inst)
|
| 1600 |
|
| 1601 |
return inst.name
|
| 1602 |
|
| 1603 |
|
| 1604 |
class LUInstanceRemove(LogicalUnit): |
| 1605 |
"""Remove an instance.
|
| 1606 |
|
| 1607 |
"""
|
| 1608 |
HPATH = "instance-remove"
|
| 1609 |
HTYPE = constants.HTYPE_INSTANCE |
| 1610 |
REQ_BGL = False
|
| 1611 |
|
| 1612 |
def ExpandNames(self): |
| 1613 |
self._ExpandAndLockInstance()
|
| 1614 |
self.needed_locks[locking.LEVEL_NODE] = []
|
| 1615 |
self.needed_locks[locking.LEVEL_NODE_RES] = []
|
| 1616 |
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
|
| 1617 |
|
| 1618 |
def DeclareLocks(self, level): |
| 1619 |
if level == locking.LEVEL_NODE:
|
| 1620 |
self._LockInstancesNodes()
|
| 1621 |
elif level == locking.LEVEL_NODE_RES:
|
| 1622 |
# Copy node locks
|
| 1623 |
self.needed_locks[locking.LEVEL_NODE_RES] = \
|
| 1624 |
_CopyLockList(self.needed_locks[locking.LEVEL_NODE])
|
| 1625 |
|
| 1626 |
def BuildHooksEnv(self): |
| 1627 |
"""Build hooks env.
|
| 1628 |
|
| 1629 |
This runs on master, primary and secondary nodes of the instance.
|
| 1630 |
|
| 1631 |
"""
|
| 1632 |
env = _BuildInstanceHookEnvByObject(self, self.instance) |
| 1633 |
env["SHUTDOWN_TIMEOUT"] = self.op.shutdown_timeout |
| 1634 |
return env
|
| 1635 |
|
| 1636 |
def BuildHooksNodes(self): |
| 1637 |
"""Build hooks nodes.
|
| 1638 |
|
| 1639 |
"""
|
| 1640 |
nl = [self.cfg.GetMasterNode()]
|
| 1641 |
nl_post = list(self.instance.all_nodes) + nl |
| 1642 |
return (nl, nl_post)
|
| 1643 |
|
| 1644 |
def CheckPrereq(self): |
| 1645 |
"""Check prerequisites.
|
| 1646 |
|
| 1647 |
This checks that the instance is in the cluster.
|
| 1648 |
|
| 1649 |
"""
|
| 1650 |
self.instance = self.cfg.GetInstanceInfo(self.op.instance_name) |
| 1651 |
assert self.instance is not None, \ |
| 1652 |
"Cannot retrieve locked instance %s" % self.op.instance_name |
| 1653 |
|
| 1654 |
def Exec(self, feedback_fn): |
| 1655 |
"""Remove the instance.
|
| 1656 |
|
| 1657 |
"""
|
| 1658 |
instance = self.instance
|
| 1659 |
logging.info("Shutting down instance %s on node %s",
|
| 1660 |
instance.name, instance.primary_node) |
| 1661 |
|
| 1662 |
result = self.rpc.call_instance_shutdown(instance.primary_node, instance,
|
| 1663 |
self.op.shutdown_timeout,
|
| 1664 |
self.op.reason)
|
| 1665 |
msg = result.fail_msg |
| 1666 |
if msg:
|
| 1667 |
if self.op.ignore_failures: |
| 1668 |
feedback_fn("Warning: can't shutdown instance: %s" % msg)
|
| 1669 |
else:
|
| 1670 |
raise errors.OpExecError("Could not shutdown instance %s on" |
| 1671 |
" node %s: %s" %
|
| 1672 |
(instance.name, instance.primary_node, msg)) |
| 1673 |
|
| 1674 |
assert (self.owned_locks(locking.LEVEL_NODE) == |
| 1675 |
self.owned_locks(locking.LEVEL_NODE_RES))
|
| 1676 |
assert not (set(instance.all_nodes) - |
| 1677 |
self.owned_locks(locking.LEVEL_NODE)), \
|
| 1678 |
"Not owning correct locks"
|
| 1679 |
|
| 1680 |
_RemoveInstance(self, feedback_fn, instance, self.op.ignore_failures) |
| 1681 |
|
| 1682 |
|
| 1683 |
def _CheckInstanceBridgesExist(lu, instance, node=None): |
| 1684 |
"""Check that the brigdes needed by an instance exist.
|
| 1685 |
|
| 1686 |
"""
|
| 1687 |
if node is None: |
| 1688 |
node = instance.primary_node |
| 1689 |
_CheckNicsBridgesExist(lu, instance.nics, node) |
| 1690 |
|
| 1691 |
|
| 1692 |
class LUInstanceMove(LogicalUnit): |
| 1693 |
"""Move an instance by data-copying.
|
| 1694 |
|
| 1695 |
"""
|
| 1696 |
HPATH = "instance-move"
|
| 1697 |
HTYPE = constants.HTYPE_INSTANCE |
| 1698 |
REQ_BGL = False
|
| 1699 |
|
| 1700 |
def ExpandNames(self): |
| 1701 |
self._ExpandAndLockInstance()
|
| 1702 |
target_node = _ExpandNodeName(self.cfg, self.op.target_node) |
| 1703 |
self.op.target_node = target_node
|
| 1704 |
self.needed_locks[locking.LEVEL_NODE] = [target_node]
|
| 1705 |
self.needed_locks[locking.LEVEL_NODE_RES] = []
|
| 1706 |
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
|
| 1707 |
|
| 1708 |
def DeclareLocks(self, level): |
| 1709 |
if level == locking.LEVEL_NODE:
|
| 1710 |
self._LockInstancesNodes(primary_only=True) |
| 1711 |
elif level == locking.LEVEL_NODE_RES:
|
| 1712 |
# Copy node locks
|
| 1713 |
self.needed_locks[locking.LEVEL_NODE_RES] = \
|
| 1714 |
_CopyLockList(self.needed_locks[locking.LEVEL_NODE])
|
| 1715 |
|
| 1716 |
def BuildHooksEnv(self): |
| 1717 |
"""Build hooks env.
|
| 1718 |
|
| 1719 |
This runs on master, primary and secondary nodes of the instance.
|
| 1720 |
|
| 1721 |
"""
|
| 1722 |
env = {
|
| 1723 |
"TARGET_NODE": self.op.target_node, |
| 1724 |
"SHUTDOWN_TIMEOUT": self.op.shutdown_timeout, |
| 1725 |
} |
| 1726 |
env.update(_BuildInstanceHookEnvByObject(self, self.instance)) |
| 1727 |
return env
|
| 1728 |
|
| 1729 |
def BuildHooksNodes(self): |
| 1730 |
"""Build hooks nodes.
|
| 1731 |
|
| 1732 |
"""
|
| 1733 |
nl = [ |
| 1734 |
self.cfg.GetMasterNode(),
|
| 1735 |
self.instance.primary_node,
|
| 1736 |
self.op.target_node,
|
| 1737 |
] |
| 1738 |
return (nl, nl)
|
| 1739 |
|
| 1740 |
def CheckPrereq(self): |
| 1741 |
"""Check prerequisites.
|
| 1742 |
|
| 1743 |
This checks that the instance is in the cluster.
|
| 1744 |
|
| 1745 |
"""
|
| 1746 |
self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name) |
| 1747 |
assert self.instance is not None, \ |
| 1748 |
"Cannot retrieve locked instance %s" % self.op.instance_name |
| 1749 |
|
| 1750 |
if instance.disk_template not in constants.DTS_COPYABLE: |
| 1751 |
raise errors.OpPrereqError("Disk template %s not suitable for copying" % |
| 1752 |
instance.disk_template, errors.ECODE_STATE) |
| 1753 |
|
| 1754 |
node = self.cfg.GetNodeInfo(self.op.target_node) |
| 1755 |
assert node is not None, \ |
| 1756 |
"Cannot retrieve locked node %s" % self.op.target_node |
| 1757 |
|
| 1758 |
self.target_node = target_node = node.name
|
| 1759 |
|
| 1760 |
if target_node == instance.primary_node:
|
| 1761 |
raise errors.OpPrereqError("Instance %s is already on the node %s" % |
| 1762 |
(instance.name, target_node), |
| 1763 |
errors.ECODE_STATE) |
| 1764 |
|
| 1765 |
bep = self.cfg.GetClusterInfo().FillBE(instance)
|
| 1766 |
|
| 1767 |
for idx, dsk in enumerate(instance.disks): |
| 1768 |
if dsk.dev_type not in (constants.LD_LV, constants.LD_FILE): |
| 1769 |
raise errors.OpPrereqError("Instance disk %d has a complex layout," |
| 1770 |
" cannot copy" % idx, errors.ECODE_STATE)
|
| 1771 |
|
| 1772 |
_CheckNodeOnline(self, target_node)
|
| 1773 |
_CheckNodeNotDrained(self, target_node)
|
| 1774 |
_CheckNodeVmCapable(self, target_node)
|
| 1775 |
cluster = self.cfg.GetClusterInfo()
|
| 1776 |
group_info = self.cfg.GetNodeGroup(node.group)
|
| 1777 |
ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster, group_info) |
| 1778 |
_CheckTargetNodeIPolicy(self, ipolicy, instance, node, self.cfg, |
| 1779 |
ignore=self.op.ignore_ipolicy)
|
| 1780 |
|
| 1781 |
if instance.admin_state == constants.ADMINST_UP:
|
| 1782 |
# check memory requirements on the secondary node
|
| 1783 |
_CheckNodeFreeMemory(self, target_node,
|
| 1784 |
"failing over instance %s" %
|
| 1785 |
instance.name, bep[constants.BE_MAXMEM], |
| 1786 |
instance.hypervisor) |
| 1787 |
else:
|
| 1788 |
self.LogInfo("Not checking memory on the secondary node as" |
| 1789 |
" instance will not be started")
|
| 1790 |
|
| 1791 |
# check bridge existance
|
| 1792 |
_CheckInstanceBridgesExist(self, instance, node=target_node)
|
| 1793 |
|
| 1794 |
def Exec(self, feedback_fn): |
| 1795 |
"""Move an instance.
|
| 1796 |
|
| 1797 |
The move is done by shutting it down on its present node, copying
|
| 1798 |
the data over (slow) and starting it on the new node.
|
| 1799 |
|
| 1800 |
"""
|
| 1801 |
instance = self.instance
|
| 1802 |
|
| 1803 |
source_node = instance.primary_node |
| 1804 |
target_node = self.target_node
|
| 1805 |
|
| 1806 |
self.LogInfo("Shutting down instance %s on source node %s", |
| 1807 |
instance.name, source_node) |
| 1808 |
|
| 1809 |
assert (self.owned_locks(locking.LEVEL_NODE) == |
| 1810 |
self.owned_locks(locking.LEVEL_NODE_RES))
|
| 1811 |
|
| 1812 |
result = self.rpc.call_instance_shutdown(source_node, instance,
|
| 1813 |
self.op.shutdown_timeout,
|
| 1814 |
self.op.reason)
|
| 1815 |
msg = result.fail_msg |
| 1816 |
if msg:
|
| 1817 |
if self.op.ignore_consistency: |
| 1818 |
self.LogWarning("Could not shutdown instance %s on node %s." |
| 1819 |
" Proceeding anyway. Please make sure node"
|
| 1820 |
" %s is down. Error details: %s",
|
| 1821 |
instance.name, source_node, source_node, msg) |
| 1822 |
else:
|
| 1823 |
raise errors.OpExecError("Could not shutdown instance %s on" |
| 1824 |
" node %s: %s" %
|
| 1825 |
(instance.name, source_node, msg)) |
| 1826 |
|
| 1827 |
# create the target disks
|
| 1828 |
try:
|
| 1829 |
_CreateDisks(self, instance, target_node=target_node)
|
| 1830 |
except errors.OpExecError:
|
| 1831 |
self.LogWarning("Device creation failed") |
| 1832 |
self.cfg.ReleaseDRBDMinors(instance.name)
|
| 1833 |
raise
|
| 1834 |
|
| 1835 |
cluster_name = self.cfg.GetClusterInfo().cluster_name
|
| 1836 |
|
| 1837 |
errs = [] |
| 1838 |
# activate, get path, copy the data over
|
| 1839 |
for idx, disk in enumerate(instance.disks): |
| 1840 |
self.LogInfo("Copying data for disk %d", idx) |
| 1841 |
result = self.rpc.call_blockdev_assemble(target_node, (disk, instance),
|
| 1842 |
instance.name, True, idx)
|
| 1843 |
if result.fail_msg:
|
| 1844 |
self.LogWarning("Can't assemble newly created disk %d: %s", |
| 1845 |
idx, result.fail_msg) |
| 1846 |
errs.append(result.fail_msg) |
| 1847 |
break
|
| 1848 |
dev_path = result.payload |
| 1849 |
result = self.rpc.call_blockdev_export(source_node, (disk, instance),
|
| 1850 |
target_node, dev_path, |
| 1851 |
cluster_name) |
| 1852 |
if result.fail_msg:
|
| 1853 |
self.LogWarning("Can't copy data over for disk %d: %s", |
| 1854 |
idx, result.fail_msg) |
| 1855 |
errs.append(result.fail_msg) |
| 1856 |
break
|
| 1857 |
|
| 1858 |
if errs:
|
| 1859 |
self.LogWarning("Some disks failed to copy, aborting") |
| 1860 |
try:
|
| 1861 |
_RemoveDisks(self, instance, target_node=target_node)
|
| 1862 |
finally:
|
| 1863 |
self.cfg.ReleaseDRBDMinors(instance.name)
|
| 1864 |
raise errors.OpExecError("Errors during disk copy: %s" % |
| 1865 |
(",".join(errs),))
|
| 1866 |
|
| 1867 |
instance.primary_node = target_node |
| 1868 |
self.cfg.Update(instance, feedback_fn)
|
| 1869 |
|
| 1870 |
self.LogInfo("Removing the disks on the original node") |
| 1871 |
_RemoveDisks(self, instance, target_node=source_node)
|
| 1872 |
|
| 1873 |
# Only start the instance if it's marked as up
|
| 1874 |
if instance.admin_state == constants.ADMINST_UP:
|
| 1875 |
self.LogInfo("Starting instance %s on node %s", |
| 1876 |
instance.name, target_node) |
| 1877 |
|
| 1878 |
disks_ok, _ = _AssembleInstanceDisks(self, instance,
|
| 1879 |
ignore_secondaries=True)
|
| 1880 |
if not disks_ok: |
| 1881 |
_ShutdownInstanceDisks(self, instance)
|
| 1882 |
raise errors.OpExecError("Can't activate the instance's disks") |
| 1883 |
|
| 1884 |
result = self.rpc.call_instance_start(target_node,
|
| 1885 |
(instance, None, None), False, |
| 1886 |
self.op.reason)
|
| 1887 |
msg = result.fail_msg |
| 1888 |
if msg:
|
| 1889 |
_ShutdownInstanceDisks(self, instance)
|
| 1890 |
raise errors.OpExecError("Could not start instance %s on node %s: %s" % |
| 1891 |
(instance.name, target_node, msg)) |
| 1892 |
|
| 1893 |
|
| 1894 |
def _GetInstanceConsole(cluster, instance): |
| 1895 |
"""Returns console information for an instance.
|
| 1896 |
|
| 1897 |
@type cluster: L{objects.Cluster}
|
| 1898 |
@type instance: L{objects.Instance}
|
| 1899 |
@rtype: dict
|
| 1900 |
|
| 1901 |
"""
|
| 1902 |
hyper = hypervisor.GetHypervisorClass(instance.hypervisor) |
| 1903 |
# beparams and hvparams are passed separately, to avoid editing the
|
| 1904 |
# instance and then saving the defaults in the instance itself.
|
| 1905 |
hvparams = cluster.FillHV(instance) |
| 1906 |
beparams = cluster.FillBE(instance) |
| 1907 |
console = hyper.GetInstanceConsole(instance, hvparams, beparams) |
| 1908 |
|
| 1909 |
assert console.instance == instance.name
|
| 1910 |
assert console.Validate()
|
| 1911 |
|
| 1912 |
return console.ToDict()
|
| 1913 |
|
| 1914 |
|
| 1915 |
class _InstanceQuery(_QueryBase): |
| 1916 |
FIELDS = query.INSTANCE_FIELDS |
| 1917 |
|
| 1918 |
def ExpandNames(self, lu): |
| 1919 |
lu.needed_locks = {}
|
| 1920 |
lu.share_locks = _ShareAll() |
| 1921 |
|
| 1922 |
if self.names: |
| 1923 |
self.wanted = _GetWantedInstances(lu, self.names) |
| 1924 |
else:
|
| 1925 |
self.wanted = locking.ALL_SET
|
| 1926 |
|
| 1927 |
self.do_locking = (self.use_locking and |
| 1928 |
query.IQ_LIVE in self.requested_data) |
| 1929 |
if self.do_locking: |
| 1930 |
lu.needed_locks[locking.LEVEL_INSTANCE] = self.wanted
|
| 1931 |
lu.needed_locks[locking.LEVEL_NODEGROUP] = [] |
| 1932 |
lu.needed_locks[locking.LEVEL_NODE] = [] |
| 1933 |
lu.needed_locks[locking.LEVEL_NETWORK] = [] |
| 1934 |
lu.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE |
| 1935 |
|
| 1936 |
self.do_grouplocks = (self.do_locking and |
| 1937 |
query.IQ_NODES in self.requested_data) |
| 1938 |
|
| 1939 |
def DeclareLocks(self, lu, level): |
| 1940 |
if self.do_locking: |
| 1941 |
if level == locking.LEVEL_NODEGROUP and self.do_grouplocks: |
| 1942 |
assert not lu.needed_locks[locking.LEVEL_NODEGROUP] |
| 1943 |
|
| 1944 |
# Lock all groups used by instances optimistically; this requires going
|
| 1945 |
# via the node before it's locked, requiring verification later on
|
| 1946 |
lu.needed_locks[locking.LEVEL_NODEGROUP] = \ |
| 1947 |
set(group_uuid
|
| 1948 |
for instance_name in lu.owned_locks(locking.LEVEL_INSTANCE) |
| 1949 |
for group_uuid in lu.cfg.GetInstanceNodeGroups(instance_name)) |
| 1950 |
elif level == locking.LEVEL_NODE:
|
| 1951 |
lu._LockInstancesNodes() # pylint: disable=W0212
|
| 1952 |
|
| 1953 |
elif level == locking.LEVEL_NETWORK:
|
| 1954 |
lu.needed_locks[locking.LEVEL_NETWORK] = \ |
| 1955 |
frozenset(net_uuid
|
| 1956 |
for instance_name in lu.owned_locks(locking.LEVEL_INSTANCE) |
| 1957 |
for net_uuid in lu.cfg.GetInstanceNetworks(instance_name)) |
| 1958 |
|
| 1959 |
@staticmethod
|
| 1960 |
def _CheckGroupLocks(lu): |
| 1961 |
owned_instances = frozenset(lu.owned_locks(locking.LEVEL_INSTANCE))
|
| 1962 |
owned_groups = frozenset(lu.owned_locks(locking.LEVEL_NODEGROUP))
|
| 1963 |
|
| 1964 |
# Check if node groups for locked instances are still correct
|
| 1965 |
for instance_name in owned_instances: |
| 1966 |
_CheckInstanceNodeGroups(lu.cfg, instance_name, owned_groups) |
| 1967 |
|
| 1968 |
def _GetQueryData(self, lu): |
| 1969 |
"""Computes the list of instances and their attributes.
|
| 1970 |
|
| 1971 |
"""
|
| 1972 |
if self.do_grouplocks: |
| 1973 |
self._CheckGroupLocks(lu)
|
| 1974 |
|
| 1975 |
cluster = lu.cfg.GetClusterInfo() |
| 1976 |
all_info = lu.cfg.GetAllInstancesInfo() |
| 1977 |
|
| 1978 |
instance_names = self._GetNames(lu, all_info.keys(), locking.LEVEL_INSTANCE)
|
| 1979 |
|
| 1980 |
instance_list = [all_info[name] for name in instance_names] |
| 1981 |
nodes = frozenset(itertools.chain(*(inst.all_nodes
|
| 1982 |
for inst in instance_list))) |
| 1983 |
hv_list = list(set([inst.hypervisor for inst in instance_list])) |
| 1984 |
bad_nodes = [] |
| 1985 |
offline_nodes = [] |
| 1986 |
wrongnode_inst = set()
|
| 1987 |
|
| 1988 |
# Gather data as requested
|
| 1989 |
if self.requested_data & set([query.IQ_LIVE, query.IQ_CONSOLE]): |
| 1990 |
live_data = {}
|
| 1991 |
node_data = lu.rpc.call_all_instances_info(nodes, hv_list) |
| 1992 |
for name in nodes: |
| 1993 |
result = node_data[name] |
| 1994 |
if result.offline:
|
| 1995 |
# offline nodes will be in both lists
|
| 1996 |
assert result.fail_msg
|
| 1997 |
offline_nodes.append(name) |
| 1998 |
if result.fail_msg:
|
| 1999 |
bad_nodes.append(name) |
| 2000 |
elif result.payload:
|
| 2001 |
for inst in result.payload: |
| 2002 |
if inst in all_info: |
| 2003 |
if all_info[inst].primary_node == name:
|
| 2004 |
live_data.update(result.payload) |
| 2005 |
else:
|
| 2006 |
wrongnode_inst.add(inst) |
| 2007 |
else:
|
| 2008 |
# orphan instance; we don't list it here as we don't
|
| 2009 |
# handle this case yet in the output of instance listing
|
| 2010 |
logging.warning("Orphan instance '%s' found on node %s",
|
| 2011 |
inst, name) |
| 2012 |
# else no instance is alive
|
| 2013 |
else:
|
| 2014 |
live_data = {}
|
| 2015 |
|
| 2016 |
if query.IQ_DISKUSAGE in self.requested_data: |
| 2017 |
gmi = ganeti.masterd.instance |
| 2018 |
disk_usage = dict((inst.name,
|
| 2019 |
gmi.ComputeDiskSize(inst.disk_template, |
| 2020 |
[{constants.IDISK_SIZE: disk.size}
|
| 2021 |
for disk in inst.disks])) |
| 2022 |
for inst in instance_list) |
| 2023 |
else:
|
| 2024 |
disk_usage = None
|
| 2025 |
|
| 2026 |
if query.IQ_CONSOLE in self.requested_data: |
| 2027 |
consinfo = {}
|
| 2028 |
for inst in instance_list: |
| 2029 |
if inst.name in live_data: |
| 2030 |
# Instance is running
|
| 2031 |
consinfo[inst.name] = _GetInstanceConsole(cluster, inst) |
| 2032 |
else:
|
| 2033 |
consinfo[inst.name] = None
|
| 2034 |
assert set(consinfo.keys()) == set(instance_names) |
| 2035 |
else:
|
| 2036 |
consinfo = None
|
| 2037 |
|
| 2038 |
if query.IQ_NODES in self.requested_data: |
| 2039 |
node_names = set(itertools.chain(*map(operator.attrgetter("all_nodes"), |
| 2040 |
instance_list))) |
| 2041 |
nodes = dict(lu.cfg.GetMultiNodeInfo(node_names))
|
| 2042 |
groups = dict((uuid, lu.cfg.GetNodeGroup(uuid))
|
| 2043 |
for uuid in set(map(operator.attrgetter("group"), |
| 2044 |
nodes.values()))) |
| 2045 |
else:
|
| 2046 |
nodes = None
|
| 2047 |
groups = None
|
| 2048 |
|
| 2049 |
if query.IQ_NETWORKS in self.requested_data: |
| 2050 |
net_uuids = itertools.chain(*(lu.cfg.GetInstanceNetworks(i.name) |
| 2051 |
for i in instance_list)) |
| 2052 |
networks = dict((uuid, lu.cfg.GetNetwork(uuid)) for uuid in net_uuids) |
| 2053 |
else:
|
| 2054 |
networks = None
|
| 2055 |
|
| 2056 |
return query.InstanceQueryData(instance_list, lu.cfg.GetClusterInfo(),
|
| 2057 |
disk_usage, offline_nodes, bad_nodes, |
| 2058 |
live_data, wrongnode_inst, consinfo, |
| 2059 |
nodes, groups, networks) |
| 2060 |
|
| 2061 |
|
| 2062 |
class LUInstanceQuery(NoHooksLU): |
| 2063 |
"""Logical unit for querying instances.
|
| 2064 |
|
| 2065 |
"""
|
| 2066 |
# pylint: disable=W0142
|
| 2067 |
REQ_BGL = False
|
| 2068 |
|
| 2069 |
def CheckArguments(self): |
| 2070 |
self.iq = _InstanceQuery(qlang.MakeSimpleFilter("name", self.op.names), |
| 2071 |
self.op.output_fields, self.op.use_locking) |
| 2072 |
|
| 2073 |
def ExpandNames(self): |
| 2074 |
self.iq.ExpandNames(self) |
| 2075 |
|
| 2076 |
def DeclareLocks(self, level): |
| 2077 |
self.iq.DeclareLocks(self, level) |
| 2078 |
|
| 2079 |
def Exec(self, feedback_fn): |
| 2080 |
return self.iq.OldStyleQuery(self) |
| 2081 |
|
| 2082 |
|
| 2083 |
class LUInstanceQueryData(NoHooksLU): |
| 2084 |
"""Query runtime instance data.
|
| 2085 |
|
| 2086 |
"""
|
| 2087 |
REQ_BGL = False
|
| 2088 |
|
| 2089 |
def ExpandNames(self): |
| 2090 |
self.needed_locks = {}
|
| 2091 |
|
| 2092 |
# Use locking if requested or when non-static information is wanted
|
| 2093 |
if not (self.op.static or self.op.use_locking): |
| 2094 |
self.LogWarning("Non-static data requested, locks need to be acquired") |
| 2095 |
self.op.use_locking = True |
| 2096 |
|
| 2097 |
if self.op.instances or not self.op.use_locking: |
| 2098 |
# Expand instance names right here
|
| 2099 |
self.wanted_names = _GetWantedInstances(self, self.op.instances) |
| 2100 |
else:
|
| 2101 |
# Will use acquired locks
|
| 2102 |
self.wanted_names = None |
| 2103 |
|
| 2104 |
if self.op.use_locking: |
| 2105 |
self.share_locks = _ShareAll()
|
| 2106 |
|
| 2107 |
if self.wanted_names is None: |
| 2108 |
self.needed_locks[locking.LEVEL_INSTANCE] = locking.ALL_SET
|
| 2109 |
else:
|
| 2110 |
self.needed_locks[locking.LEVEL_INSTANCE] = self.wanted_names |
| 2111 |
|
| 2112 |
self.needed_locks[locking.LEVEL_NODEGROUP] = []
|
| 2113 |
self.needed_locks[locking.LEVEL_NODE] = []
|
| 2114 |
self.needed_locks[locking.LEVEL_NETWORK] = []
|
| 2115 |
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
|
| 2116 |
|
| 2117 |
def DeclareLocks(self, level): |
| 2118 |
if self.op.use_locking: |
| 2119 |
owned_instances = self.owned_locks(locking.LEVEL_INSTANCE)
|
| 2120 |
if level == locking.LEVEL_NODEGROUP:
|
| 2121 |
|
| 2122 |
# Lock all groups used by instances optimistically; this requires going
|
| 2123 |
# via the node before it's locked, requiring verification later on
|
| 2124 |
self.needed_locks[locking.LEVEL_NODEGROUP] = \
|
| 2125 |
frozenset(group_uuid
|
| 2126 |
for instance_name in owned_instances |
| 2127 |
for group_uuid in |
| 2128 |
self.cfg.GetInstanceNodeGroups(instance_name))
|
| 2129 |
|
| 2130 |
elif level == locking.LEVEL_NODE:
|
| 2131 |
self._LockInstancesNodes()
|
| 2132 |
|
| 2133 |
elif level == locking.LEVEL_NETWORK:
|
| 2134 |
self.needed_locks[locking.LEVEL_NETWORK] = \
|
| 2135 |
frozenset(net_uuid
|
| 2136 |
for instance_name in owned_instances |
| 2137 |
for net_uuid in |
| 2138 |
self.cfg.GetInstanceNetworks(instance_name))
|
| 2139 |
|
| 2140 |
def CheckPrereq(self): |
| 2141 |
"""Check prerequisites.
|
| 2142 |
|
| 2143 |
This only checks the optional instance list against the existing names.
|
| 2144 |
|
| 2145 |
"""
|
| 2146 |
owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE)) |
| 2147 |
owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP)) |
| 2148 |
owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE)) |
| 2149 |
owned_networks = frozenset(self.owned_locks(locking.LEVEL_NETWORK)) |
| 2150 |
|
| 2151 |
if self.wanted_names is None: |
| 2152 |
assert self.op.use_locking, "Locking was not used" |
| 2153 |
self.wanted_names = owned_instances
|
| 2154 |
|
| 2155 |
instances = dict(self.cfg.GetMultiInstanceInfo(self.wanted_names)) |
| 2156 |
|
| 2157 |
if self.op.use_locking: |
| 2158 |
_CheckInstancesNodeGroups(self.cfg, instances, owned_groups, owned_nodes,
|
| 2159 |
None)
|
| 2160 |
else:
|
| 2161 |
assert not (owned_instances or owned_groups or |
| 2162 |
owned_nodes or owned_networks)
|
| 2163 |
|
| 2164 |
self.wanted_instances = instances.values()
|
| 2165 |
|
| 2166 |
def _ComputeBlockdevStatus(self, node, instance, dev): |
| 2167 |
"""Returns the status of a block device
|
| 2168 |
|
| 2169 |
"""
|
| 2170 |
if self.op.static or not node: |
| 2171 |
return None |
| 2172 |
|
| 2173 |
self.cfg.SetDiskID(dev, node)
|
| 2174 |
|
| 2175 |
result = self.rpc.call_blockdev_find(node, dev)
|
| 2176 |
if result.offline:
|
| 2177 |
return None |
| 2178 |
|
| 2179 |
result.Raise("Can't compute disk status for %s" % instance.name)
|
| 2180 |
|
| 2181 |
status = result.payload |
| 2182 |
if status is None: |
| 2183 |
return None |
| 2184 |
|
| 2185 |
return (status.dev_path, status.major, status.minor,
|
| 2186 |
status.sync_percent, status.estimated_time, |
| 2187 |
status.is_degraded, status.ldisk_status) |
| 2188 |
|
| 2189 |
def _ComputeDiskStatus(self, instance, snode, dev): |
| 2190 |
"""Compute block device status.
|
| 2191 |
|
| 2192 |
"""
|
| 2193 |
(anno_dev,) = _AnnotateDiskParams(instance, [dev], self.cfg)
|
| 2194 |
|
| 2195 |
return self._ComputeDiskStatusInner(instance, snode, anno_dev) |
| 2196 |
|
| 2197 |
def _ComputeDiskStatusInner(self, instance, snode, dev): |
| 2198 |
"""Compute block device status.
|
| 2199 |
|
| 2200 |
@attention: The device has to be annotated already.
|
| 2201 |
|
| 2202 |
"""
|
| 2203 |
if dev.dev_type in constants.LDS_DRBD: |
| 2204 |
# we change the snode then (otherwise we use the one passed in)
|
| 2205 |
if dev.logical_id[0] == instance.primary_node: |
| 2206 |
snode = dev.logical_id[1]
|
| 2207 |
else:
|
| 2208 |
snode = dev.logical_id[0]
|
| 2209 |
|
| 2210 |
dev_pstatus = self._ComputeBlockdevStatus(instance.primary_node,
|
| 2211 |
instance, dev) |
| 2212 |
dev_sstatus = self._ComputeBlockdevStatus(snode, instance, dev)
|
| 2213 |
|
| 2214 |
if dev.children:
|
| 2215 |
dev_children = map(compat.partial(self._ComputeDiskStatusInner, |
| 2216 |
instance, snode), |
| 2217 |
dev.children) |
| 2218 |
else:
|
| 2219 |
dev_children = [] |
| 2220 |
|
| 2221 |
return {
|
| 2222 |
"iv_name": dev.iv_name,
|
| 2223 |
"dev_type": dev.dev_type,
|
| 2224 |
"logical_id": dev.logical_id,
|
| 2225 |
"physical_id": dev.physical_id,
|
| 2226 |
"pstatus": dev_pstatus,
|
| 2227 |
"sstatus": dev_sstatus,
|
| 2228 |
"children": dev_children,
|
| 2229 |
"mode": dev.mode,
|
| 2230 |
"size": dev.size,
|
| 2231 |
"name": dev.name,
|
| 2232 |
"uuid": dev.uuid,
|
| 2233 |
} |
| 2234 |
|
| 2235 |
def Exec(self, feedback_fn): |
| 2236 |
"""Gather and return data"""
|
| 2237 |
result = {}
|
| 2238 |
|
| 2239 |
cluster = self.cfg.GetClusterInfo()
|
| 2240 |
|
| 2241 |
node_names = itertools.chain(*(i.all_nodes for i in self.wanted_instances)) |
| 2242 |
nodes = dict(self.cfg.GetMultiNodeInfo(node_names)) |
| 2243 |
|
| 2244 |
groups = dict(self.cfg.GetMultiNodeGroupInfo(node.group |
| 2245 |
for node in nodes.values())) |
| 2246 |
|
| 2247 |
group2name_fn = lambda uuid: groups[uuid].name
|
| 2248 |
for instance in self.wanted_instances: |
| 2249 |
pnode = nodes[instance.primary_node] |
| 2250 |
|
| 2251 |
if self.op.static or pnode.offline: |
| 2252 |
remote_state = None
|
| 2253 |
if pnode.offline:
|
| 2254 |
self.LogWarning("Primary node %s is marked offline, returning static" |
| 2255 |
" information only for instance %s" %
|
| 2256 |
(pnode.name, instance.name)) |
| 2257 |
else:
|
| 2258 |
remote_info = self.rpc.call_instance_info(instance.primary_node,
|
| 2259 |
instance.name, |
| 2260 |
instance.hypervisor) |
| 2261 |
remote_info.Raise("Error checking node %s" % instance.primary_node)
|
| 2262 |
remote_info = remote_info.payload |
| 2263 |
if remote_info and "state" in remote_info: |
| 2264 |
remote_state = "up"
|
| 2265 |
else:
|
| 2266 |
if instance.admin_state == constants.ADMINST_UP:
|
| 2267 |
remote_state = "down"
|
| 2268 |
else:
|
| 2269 |
remote_state = instance.admin_state |
| 2270 |
|
| 2271 |
disks = map(compat.partial(self._ComputeDiskStatus, instance, None), |
| 2272 |
instance.disks) |
| 2273 |
|
| 2274 |
snodes_group_uuids = [nodes[snode_name].group |
| 2275 |
for snode_name in instance.secondary_nodes] |
| 2276 |
|
| 2277 |
result[instance.name] = {
|
| 2278 |
"name": instance.name,
|
| 2279 |
"config_state": instance.admin_state,
|
| 2280 |
"run_state": remote_state,
|
| 2281 |
"pnode": instance.primary_node,
|
| 2282 |
"pnode_group_uuid": pnode.group,
|
| 2283 |
"pnode_group_name": group2name_fn(pnode.group),
|
| 2284 |
"snodes": instance.secondary_nodes,
|
| 2285 |
"snodes_group_uuids": snodes_group_uuids,
|
| 2286 |
"snodes_group_names": map(group2name_fn, snodes_group_uuids), |
| 2287 |
"os": instance.os,
|
| 2288 |
# this happens to be the same format used for hooks
|
| 2289 |
"nics": _NICListToTuple(self, instance.nics), |
| 2290 |
"disk_template": instance.disk_template,
|
| 2291 |
"disks": disks,
|
| 2292 |
"hypervisor": instance.hypervisor,
|
| 2293 |
"network_port": instance.network_port,
|
| 2294 |
"hv_instance": instance.hvparams,
|
| 2295 |
"hv_actual": cluster.FillHV(instance, skip_globals=True), |
| 2296 |
"be_instance": instance.beparams,
|
| 2297 |
"be_actual": cluster.FillBE(instance),
|
| 2298 |
"os_instance": instance.osparams,
|
| 2299 |
"os_actual": cluster.SimpleFillOS(instance.os, instance.osparams),
|
| 2300 |
"serial_no": instance.serial_no,
|
| 2301 |
"mtime": instance.mtime,
|
| 2302 |
"ctime": instance.ctime,
|
| 2303 |
"uuid": instance.uuid,
|
| 2304 |
} |
| 2305 |
|
| 2306 |
return result
|
| 2307 |
|
| 2308 |
|
| 2309 |
class LUInstanceStartup(LogicalUnit): |
| 2310 |
"""Starts an instance.
|
| 2311 |
|
| 2312 |
"""
|
| 2313 |
HPATH = "instance-start"
|
| 2314 |
HTYPE = constants.HTYPE_INSTANCE |
| 2315 |
REQ_BGL = False
|
| 2316 |
|
| 2317 |
def CheckArguments(self): |
| 2318 |
# extra beparams
|
| 2319 |
if self.op.beparams: |
| 2320 |
# fill the beparams dict
|
| 2321 |
objects.UpgradeBeParams(self.op.beparams)
|
| 2322 |
utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
|
| 2323 |
|
| 2324 |
def ExpandNames(self): |
| 2325 |
self._ExpandAndLockInstance()
|
| 2326 |
self.recalculate_locks[locking.LEVEL_NODE_RES] = constants.LOCKS_REPLACE
|
| 2327 |
|
| 2328 |
def DeclareLocks(self, level): |
| 2329 |
if level == locking.LEVEL_NODE_RES:
|
| 2330 |
self._LockInstancesNodes(primary_only=True, level=locking.LEVEL_NODE_RES) |
| 2331 |
|
| 2332 |
def BuildHooksEnv(self): |
| 2333 |
"""Build hooks env.
|
| 2334 |
|
| 2335 |
This runs on master, primary and secondary nodes of the instance.
|
| 2336 |
|
| 2337 |
"""
|
| 2338 |
env = {
|
| 2339 |
"FORCE": self.op.force, |
| 2340 |
} |
| 2341 |
|
| 2342 |
env.update(_BuildInstanceHookEnvByObject(self, self.instance)) |
| 2343 |
|
| 2344 |
return env
|
| 2345 |
|
| 2346 |
def BuildHooksNodes(self): |
| 2347 |
"""Build hooks nodes.
|
| 2348 |
|
| 2349 |
"""
|
| 2350 |
nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes) |
| 2351 |
return (nl, nl)
|
| 2352 |
|
| 2353 |
def CheckPrereq(self): |
| 2354 |
"""Check prerequisites.
|
| 2355 |
|
| 2356 |
This checks that the instance is in the cluster.
|
| 2357 |
|
| 2358 |
"""
|
| 2359 |
self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name) |
| 2360 |
assert self.instance is not None, \ |
| 2361 |
"Cannot retrieve locked instance %s" % self.op.instance_name |
| 2362 |
|
| 2363 |
# extra hvparams
|
| 2364 |
if self.op.hvparams: |
| 2365 |
# check hypervisor parameter syntax (locally)
|
| 2366 |
cluster = self.cfg.GetClusterInfo()
|
| 2367 |
utils.ForceDictType(self.op.hvparams, constants.HVS_PARAMETER_TYPES)
|
| 2368 |
filled_hvp = cluster.FillHV(instance) |
| 2369 |
filled_hvp.update(self.op.hvparams)
|
| 2370 |
hv_type = hypervisor.GetHypervisorClass(instance.hypervisor) |
| 2371 |
hv_type.CheckParameterSyntax(filled_hvp) |
| 2372 |
_CheckHVParams(self, instance.all_nodes, instance.hypervisor, filled_hvp)
|
| 2373 |
|
| 2374 |
_CheckInstanceState(self, instance, INSTANCE_ONLINE)
|
| 2375 |
|
| 2376 |
self.primary_offline = self.cfg.GetNodeInfo(instance.primary_node).offline |
| 2377 |
|
| 2378 |
if self.primary_offline and self.op.ignore_offline_nodes: |
| 2379 |
self.LogWarning("Ignoring offline primary node") |
| 2380 |
|
| 2381 |
if self.op.hvparams or self.op.beparams: |
| 2382 |
self.LogWarning("Overridden parameters are ignored") |
| 2383 |
else:
|
| 2384 |
_CheckNodeOnline(self, instance.primary_node)
|
| 2385 |
|
| 2386 |
bep = self.cfg.GetClusterInfo().FillBE(instance)
|
| 2387 |
bep.update(self.op.beparams)
|
| 2388 |
|
| 2389 |
# check bridges existence
|
| 2390 |
_CheckInstanceBridgesExist(self, instance)
|
| 2391 |
|
| 2392 |
remote_info = self.rpc.call_instance_info(instance.primary_node,
|
| 2393 |
instance.name, |
| 2394 |
instance.hypervisor) |
| 2395 |
remote_info.Raise("Error checking node %s" % instance.primary_node,
|
| 2396 |
prereq=True, ecode=errors.ECODE_ENVIRON)
|
| 2397 |
if not remote_info.payload: # not running already |
| 2398 |
_CheckNodeFreeMemory(self, instance.primary_node,
|
| 2399 |
"starting instance %s" % instance.name,
|
| 2400 |
bep[constants.BE_MINMEM], instance.hypervisor) |
| 2401 |
|
| 2402 |
def Exec(self, feedback_fn): |
| 2403 |
"""Start the instance.
|
| 2404 |
|
| 2405 |
"""
|
| 2406 |
instance = self.instance
|
| 2407 |
force = self.op.force
|
| 2408 |
reason = self.op.reason
|
| 2409 |
|
| 2410 |
if not self.op.no_remember: |
| 2411 |
self.cfg.MarkInstanceUp(instance.name)
|
| 2412 |
|
| 2413 |
if self.primary_offline: |
| 2414 |
assert self.op.ignore_offline_nodes |
| 2415 |
self.LogInfo("Primary node offline, marked instance as started") |
| 2416 |
else:
|
| 2417 |
node_current = instance.primary_node |
| 2418 |
|
| 2419 |
_StartInstanceDisks(self, instance, force)
|
| 2420 |
|
| 2421 |
result = \ |
| 2422 |
self.rpc.call_instance_start(node_current,
|
| 2423 |
(instance, self.op.hvparams,
|
| 2424 |
self.op.beparams),
|
| 2425 |
self.op.startup_paused, reason)
|
| 2426 |
msg = result.fail_msg |
| 2427 |
if msg:
|
| 2428 |
_ShutdownInstanceDisks(self, instance)
|
| 2429 |
raise errors.OpExecError("Could not start instance: %s" % msg) |
| 2430 |
|
| 2431 |
|
| 2432 |
class LUInstanceShutdown(LogicalUnit): |
| 2433 |
"""Shutdown an instance.
|
| 2434 |
|
| 2435 |
"""
|
| 2436 |
HPATH = "instance-stop"
|
| 2437 |
HTYPE = constants.HTYPE_INSTANCE |
| 2438 |
REQ_BGL = False
|
| 2439 |
|
| 2440 |
def ExpandNames(self): |
| 2441 |
self._ExpandAndLockInstance()
|
| 2442 |
|
| 2443 |
def BuildHooksEnv(self): |
| 2444 |
"""Build hooks env.
|
| 2445 |
|
| 2446 |
This runs on master, primary and secondary nodes of the instance.
|
| 2447 |
|
| 2448 |
"""
|
| 2449 |
env = _BuildInstanceHookEnvByObject(self, self.instance) |
| 2450 |
env["TIMEOUT"] = self.op.timeout |
| 2451 |
return env
|
| 2452 |
|
| 2453 |
def BuildHooksNodes(self): |
| 2454 |
"""Build hooks nodes.
|
| 2455 |
|
| 2456 |
"""
|
| 2457 |
nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes) |
| 2458 |
return (nl, nl)
|
| 2459 |
|
| 2460 |
def CheckPrereq(self): |
| 2461 |
"""Check prerequisites.
|
| 2462 |
|
| 2463 |
This checks that the instance is in the cluster.
|
| 2464 |
|
| 2465 |
"""
|
| 2466 |
self.instance = self.cfg.GetInstanceInfo(self.op.instance_name) |
| 2467 |
assert self.instance is not None, \ |
| 2468 |
"Cannot retrieve locked instance %s" % self.op.instance_name |
| 2469 |
|
| 2470 |
if not self.op.force: |
| 2471 |
_CheckInstanceState(self, self.instance, INSTANCE_ONLINE) |
| 2472 |
else:
|
| 2473 |
self.LogWarning("Ignoring offline instance check") |
| 2474 |
|
| 2475 |
self.primary_offline = \
|
| 2476 |
self.cfg.GetNodeInfo(self.instance.primary_node).offline |
| 2477 |
|
| 2478 |
if self.primary_offline and self.op.ignore_offline_nodes: |
| 2479 |
self.LogWarning("Ignoring offline primary node") |
| 2480 |
else:
|
| 2481 |
_CheckNodeOnline(self, self.instance.primary_node) |
| 2482 |
|
| 2483 |
def Exec(self, feedback_fn): |
| 2484 |
"""Shutdown the instance.
|
| 2485 |
|
| 2486 |
"""
|
| 2487 |
instance = self.instance
|
| 2488 |
node_current = instance.primary_node |
| 2489 |
timeout = self.op.timeout
|
| 2490 |
reason = self.op.reason
|
| 2491 |
|
| 2492 |
# If the instance is offline we shouldn't mark it as down, as that
|
| 2493 |
# resets the offline flag.
|
| 2494 |
if not self.op.no_remember and instance.admin_state in INSTANCE_ONLINE: |
| 2495 |
self.cfg.MarkInstanceDown(instance.name)
|
| 2496 |
|
| 2497 |
if self.primary_offline: |
| 2498 |
assert self.op.ignore_offline_nodes |
| 2499 |
self.LogInfo("Primary node offline, marked instance as stopped") |
| 2500 |
else:
|
| 2501 |
result = self.rpc.call_instance_shutdown(node_current, instance, timeout,
|
| 2502 |
reason) |
| 2503 |
msg = result.fail_msg |
| 2504 |
if msg:
|
| 2505 |
self.LogWarning("Could not shutdown instance: %s", msg) |
| 2506 |
|
| 2507 |
_ShutdownInstanceDisks(self, instance)
|
| 2508 |
|
| 2509 |
|
| 2510 |
class LUInstanceReinstall(LogicalUnit): |
| 2511 |
"""Reinstall an instance.
|
| 2512 |
|
| 2513 |
"""
|
| 2514 |
HPATH = "instance-reinstall"
|
| 2515 |
HTYPE = constants.HTYPE_INSTANCE |
| 2516 |
REQ_BGL = False
|
| 2517 |
|
| 2518 |
def ExpandNames(self): |
| 2519 |
self._ExpandAndLockInstance()
|
| 2520 |
|
| 2521 |
def BuildHooksEnv(self): |
| 2522 |
"""Build hooks env.
|
| 2523 |
|
| 2524 |
This runs on master, primary and secondary nodes of the instance.
|
| 2525 |
|
| 2526 |
"""
|
| 2527 |
return _BuildInstanceHookEnvByObject(self, self.instance) |
| 2528 |
|
| 2529 |
def BuildHooksNodes(self): |
| 2530 |
"""Build hooks nodes.
|
| 2531 |
|
| 2532 |
"""
|
| 2533 |
nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes) |
| 2534 |
return (nl, nl)
|
| 2535 |
|
| 2536 |
def CheckPrereq(self): |
| 2537 |
"""Check prerequisites.
|
| 2538 |
|
| 2539 |
This checks that the instance is in the cluster and is not running.
|
| 2540 |
|
| 2541 |
"""
|
| 2542 |
instance = self.cfg.GetInstanceInfo(self.op.instance_name) |
| 2543 |
assert instance is not None, \ |
| 2544 |
"Cannot retrieve locked instance %s" % self.op.instance_name |
| 2545 |
_CheckNodeOnline(self, instance.primary_node, "Instance primary node" |
| 2546 |
" offline, cannot reinstall")
|
| 2547 |
|
| 2548 |
if instance.disk_template == constants.DT_DISKLESS:
|
| 2549 |
raise errors.OpPrereqError("Instance '%s' has no disks" % |
| 2550 |
self.op.instance_name,
|
| 2551 |
errors.ECODE_INVAL) |
| 2552 |
_CheckInstanceState(self, instance, INSTANCE_DOWN, msg="cannot reinstall") |
| 2553 |
|
| 2554 |
if self.op.os_type is not None: |
| 2555 |
# OS verification
|
| 2556 |
pnode = _ExpandNodeName(self.cfg, instance.primary_node)
|
| 2557 |
_CheckNodeHasOS(self, pnode, self.op.os_type, self.op.force_variant) |
| 2558 |
instance_os = self.op.os_type
|
| 2559 |
else:
|
| 2560 |
instance_os = instance.os |
| 2561 |
|
| 2562 |
nodelist = list(instance.all_nodes)
|
| 2563 |
|
| 2564 |
if self.op.osparams: |
| 2565 |
i_osdict = _GetUpdatedParams(instance.osparams, self.op.osparams)
|
| 2566 |
_CheckOSParams(self, True, nodelist, instance_os, i_osdict) |
| 2567 |
self.os_inst = i_osdict # the new dict (without defaults) |
| 2568 |
else:
|
| 2569 |
self.os_inst = None |
| 2570 |
|
| 2571 |
self.instance = instance
|
| 2572 |
|
| 2573 |
def Exec(self, feedback_fn): |
| 2574 |
"""Reinstall the instance.
|
| 2575 |
|
| 2576 |
"""
|
| 2577 |
inst = self.instance
|
| 2578 |
|
| 2579 |
if self.op.os_type is not None: |
| 2580 |
feedback_fn("Changing OS to '%s'..." % self.op.os_type) |
| 2581 |
inst.os = self.op.os_type
|
| 2582 |
# Write to configuration
|
| 2583 |
self.cfg.Update(inst, feedback_fn)
|
| 2584 |
|
| 2585 |
_StartInstanceDisks(self, inst, None) |
| 2586 |
try:
|
| 2587 |
feedback_fn("Running the instance OS create scripts...")
|
| 2588 |
# FIXME: pass debug option from opcode to backend
|
| 2589 |
result = self.rpc.call_instance_os_add(inst.primary_node,
|
| 2590 |
(inst, self.os_inst), True, |
| 2591 |
self.op.debug_level)
|
| 2592 |
result.Raise("Could not install OS for instance %s on node %s" %
|
| 2593 |
(inst.name, inst.primary_node)) |
| 2594 |
finally:
|
| 2595 |
_ShutdownInstanceDisks(self, inst)
|
| 2596 |
|
| 2597 |
|
| 2598 |
class LUInstanceReboot(LogicalUnit): |
| 2599 |
"""Reboot an instance.
|
| 2600 |
|
| 2601 |
"""
|
| 2602 |
HPATH = "instance-reboot"
|
| 2603 |
HTYPE = constants.HTYPE_INSTANCE |
| 2604 |
REQ_BGL = False
|
| 2605 |
|
| 2606 |
def ExpandNames(self): |
| 2607 |
self._ExpandAndLockInstance()
|
| 2608 |
|
| 2609 |
def BuildHooksEnv(self): |
| 2610 |
"""Build hooks env.
|
| 2611 |
|
| 2612 |
This runs on master, primary and secondary nodes of the instance.
|
| 2613 |
|
| 2614 |
"""
|
| 2615 |
env = {
|
| 2616 |
"IGNORE_SECONDARIES": self.op.ignore_secondaries, |
| 2617 |
"REBOOT_TYPE": self.op.reboot_type, |
| 2618 |
"SHUTDOWN_TIMEOUT": self.op.shutdown_timeout, |
| 2619 |
} |
| 2620 |
|
| 2621 |
env.update(_BuildInstanceHookEnvByObject(self, self.instance)) |
| 2622 |
|
| 2623 |
return env
|
| 2624 |
|
| 2625 |
def BuildHooksNodes(self): |
| 2626 |
"""Build hooks nodes.
|
| 2627 |
|
| 2628 |
"""
|
| 2629 |
nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes) |
| 2630 |
return (nl, nl)
|
| 2631 |
|
| 2632 |
def CheckPrereq(self): |
| 2633 |
"""Check prerequisites.
|
| 2634 |
|
| 2635 |
This checks that the instance is in the cluster.
|
| 2636 |
|
| 2637 |
"""
|
| 2638 |
self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name) |
| 2639 |
assert self.instance is not None, \ |
| 2640 |
"Cannot retrieve locked instance %s" % self.op.instance_name |
| 2641 |
_CheckInstanceState(self, instance, INSTANCE_ONLINE)
|
| 2642 |
_CheckNodeOnline(self, instance.primary_node)
|
| 2643 |
|
| 2644 |
# check bridges existence
|
| 2645 |
_CheckInstanceBridgesExist(self, instance)
|
| 2646 |
|
| 2647 |
def Exec(self, feedback_fn): |
| 2648 |
"""Reboot the instance.
|
| 2649 |
|
| 2650 |
"""
|
| 2651 |
instance = self.instance
|
| 2652 |
ignore_secondaries = self.op.ignore_secondaries
|
| 2653 |
reboot_type = self.op.reboot_type
|
| 2654 |
reason = self.op.reason
|
| 2655 |
|
| 2656 |
remote_info = self.rpc.call_instance_info(instance.primary_node,
|
| 2657 |
instance.name, |
| 2658 |
instance.hypervisor) |
| 2659 |
remote_info.Raise("Error checking node %s" % instance.primary_node)
|
| 2660 |
instance_running = bool(remote_info.payload)
|
| 2661 |
|
| 2662 |
node_current = instance.primary_node |
| 2663 |
|
| 2664 |
if instance_running and reboot_type in [constants.INSTANCE_REBOOT_SOFT, |
| 2665 |
constants.INSTANCE_REBOOT_HARD]: |
| 2666 |
for disk in instance.disks: |
| 2667 |
self.cfg.SetDiskID(disk, node_current)
|
| 2668 |
result = self.rpc.call_instance_reboot(node_current, instance,
|
| 2669 |
reboot_type, |
| 2670 |
self.op.shutdown_timeout, reason)
|
| 2671 |
result.Raise("Could not reboot instance")
|
| 2672 |
else:
|
| 2673 |
if instance_running:
|
| 2674 |
result = self.rpc.call_instance_shutdown(node_current, instance,
|
| 2675 |
self.op.shutdown_timeout,
|
| 2676 |
reason) |
| 2677 |
result.Raise("Could not shutdown instance for full reboot")
|
| 2678 |
_ShutdownInstanceDisks(self, instance)
|
| 2679 |
else:
|
| 2680 |
self.LogInfo("Instance %s was already stopped, starting now", |
| 2681 |
instance.name) |
| 2682 |
_StartInstanceDisks(self, instance, ignore_secondaries)
|
| 2683 |
result = self.rpc.call_instance_start(node_current,
|
| 2684 |
(instance, None, None), False, |
| 2685 |
reason) |
| 2686 |
msg = result.fail_msg |
| 2687 |
if msg:
|
| 2688 |
_ShutdownInstanceDisks(self, instance)
|
| 2689 |
raise errors.OpExecError("Could not start instance for" |
| 2690 |
" full reboot: %s" % msg)
|
| 2691 |
|
| 2692 |
self.cfg.MarkInstanceUp(instance.name)
|
| 2693 |
|
| 2694 |
|
| 2695 |
class LUInstanceConsole(NoHooksLU): |
| 2696 |
"""Connect to an instance's console.
|
| 2697 |
|
| 2698 |
This is somewhat special in that it returns the command line that
|
| 2699 |
you need to run on the master node in order to connect to the
|
| 2700 |
console.
|
| 2701 |
|
| 2702 |
"""
|
| 2703 |
REQ_BGL = False
|
| 2704 |
|
| 2705 |
def ExpandNames(self): |
| 2706 |
self.share_locks = _ShareAll()
|
| 2707 |
self._ExpandAndLockInstance()
|
| 2708 |
|
| 2709 |
def CheckPrereq(self): |
| 2710 |
"""Check prerequisites.
|
| 2711 |
|
| 2712 |
This checks that the instance is in the cluster.
|
| 2713 |
|
| 2714 |
"""
|
| 2715 |
self.instance = self.cfg.GetInstanceInfo(self.op.instance_name) |
| 2716 |
assert self.instance is not None, \ |
| 2717 |
"Cannot retrieve locked instance %s" % self.op.instance_name |
| 2718 |
_CheckNodeOnline(self, self.instance.primary_node) |
| 2719 |
|
| 2720 |
def Exec(self, feedback_fn): |
| 2721 |
"""Connect to the console of an instance
|
| 2722 |
|
| 2723 |
"""
|
| 2724 |
instance = self.instance
|
| 2725 |
node = instance.primary_node |
| 2726 |
|
| 2727 |
node_insts = self.rpc.call_instance_list([node],
|
| 2728 |
[instance.hypervisor])[node] |
| 2729 |
node_insts.Raise("Can't get node information from %s" % node)
|
| 2730 |
|
| 2731 |
if instance.name not in node_insts.payload: |
| 2732 |
if instance.admin_state == constants.ADMINST_UP:
|
| 2733 |
state = constants.INSTST_ERRORDOWN |
| 2734 |
elif instance.admin_state == constants.ADMINST_DOWN:
|
| 2735 |
state = constants.INSTST_ADMINDOWN |
| 2736 |
else:
|
| 2737 |
state = constants.INSTST_ADMINOFFLINE |
| 2738 |
raise errors.OpExecError("Instance %s is not running (state %s)" % |
| 2739 |
(instance.name, state)) |
| 2740 |
|
| 2741 |
logging.debug("Connecting to console of %s on %s", instance.name, node)
|
| 2742 |
|
| 2743 |
return _GetInstanceConsole(self.cfg.GetClusterInfo(), instance) |
| 2744 |
|
| 2745 |
|
| 2746 |
def _DeclareLocksForMigration(lu, level): |
| 2747 |
"""Declares locks for L{TLMigrateInstance}.
|
| 2748 |
|
| 2749 |
@type lu: L{LogicalUnit}
|
| 2750 |
@param level: Lock level
|
| 2751 |
|
| 2752 |
"""
|
| 2753 |
if level == locking.LEVEL_NODE_ALLOC:
|
| 2754 |
assert lu.op.instance_name in lu.owned_locks(locking.LEVEL_INSTANCE) |
| 2755 |
|
| 2756 |
instance = lu.cfg.GetInstanceInfo(lu.op.instance_name) |
| 2757 |
|
| 2758 |
# Node locks are already declared here rather than at LEVEL_NODE as we need
|
| 2759 |
# the instance object anyway to declare the node allocation lock.
|
| 2760 |
if instance.disk_template in constants.DTS_EXT_MIRROR: |
| 2761 |
if lu.op.target_node is None: |
| 2762 |
lu.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET |
| 2763 |
lu.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET |
| 2764 |
else:
|
| 2765 |
lu.needed_locks[locking.LEVEL_NODE] = [instance.primary_node, |
| 2766 |
lu.op.target_node] |
| 2767 |
del lu.recalculate_locks[locking.LEVEL_NODE]
|
| 2768 |
else:
|
| 2769 |
lu._LockInstancesNodes() # pylint: disable=W0212
|
| 2770 |
|
| 2771 |
elif level == locking.LEVEL_NODE:
|
| 2772 |
# Node locks are declared together with the node allocation lock
|
| 2773 |
assert (lu.needed_locks[locking.LEVEL_NODE] or |
| 2774 |
lu.needed_locks[locking.LEVEL_NODE] is locking.ALL_SET)
|
| 2775 |
|
| 2776 |
elif level == locking.LEVEL_NODE_RES:
|
| 2777 |
# Copy node locks
|
| 2778 |
lu.needed_locks[locking.LEVEL_NODE_RES] = \ |
| 2779 |
_CopyLockList(lu.needed_locks[locking.LEVEL_NODE]) |
| 2780 |
|
| 2781 |
|
| 2782 |
def _ExpandNamesForMigration(lu): |
| 2783 |
"""Expands names for use with L{TLMigrateInstance}.
|
| 2784 |
|
| 2785 |
@type lu: L{LogicalUnit}
|
| 2786 |
|
| 2787 |
"""
|
| 2788 |
if lu.op.target_node is not None: |
| 2789 |
lu.op.target_node = _ExpandNodeName(lu.cfg, lu.op.target_node) |
| 2790 |
|
| 2791 |
lu.needed_locks[locking.LEVEL_NODE] = [] |
| 2792 |
lu.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE |
| 2793 |
|
| 2794 |
lu.needed_locks[locking.LEVEL_NODE_RES] = [] |
| 2795 |
lu.recalculate_locks[locking.LEVEL_NODE_RES] = constants.LOCKS_REPLACE |
| 2796 |
|
| 2797 |
# The node allocation lock is actually only needed for externally replicated
|
| 2798 |
# instances (e.g. sharedfile or RBD) and if an iallocator is used.
|
| 2799 |
lu.needed_locks[locking.LEVEL_NODE_ALLOC] = [] |
| 2800 |
|
| 2801 |
|
| 2802 |
class LUInstanceFailover(LogicalUnit): |
| 2803 |
"""Failover an instance.
|
| 2804 |
|
| 2805 |
"""
|
| 2806 |
HPATH = "instance-failover"
|
| 2807 |
HTYPE = constants.HTYPE_INSTANCE |
| 2808 |
REQ_BGL = False
|
| 2809 |
|
| 2810 |
def CheckArguments(self): |
| 2811 |
"""Check the arguments.
|
| 2812 |
|
| 2813 |
"""
|
| 2814 |
self.iallocator = getattr(self.op, "iallocator", None) |
| 2815 |
self.target_node = getattr(self.op, "target_node", None) |
| 2816 |
|
| 2817 |
def ExpandNames(self): |
| 2818 |
self._ExpandAndLockInstance()
|
| 2819 |
_ExpandNamesForMigration(self)
|
| 2820 |
|
| 2821 |
self._migrater = \
|
| 2822 |
TLMigrateInstance(self, self.op.instance_name, False, True, False, |
| 2823 |
self.op.ignore_consistency, True, |
| 2824 |
self.op.shutdown_timeout, self.op.ignore_ipolicy) |
| 2825 |
|
| 2826 |
self.tasklets = [self._migrater] |
| 2827 |
|
| 2828 |
def DeclareLocks(self, level): |
| 2829 |
_DeclareLocksForMigration(self, level)
|
| 2830 |
|
| 2831 |
def BuildHooksEnv(self): |
| 2832 |
"""Build hooks env.
|
| 2833 |
|
| 2834 |
This runs on master, primary and secondary nodes of the instance.
|
| 2835 |
|
| 2836 |
"""
|
| 2837 |
instance = self._migrater.instance
|
| 2838 |
source_node = instance.primary_node |
| 2839 |
target_node = self.op.target_node
|
| 2840 |
env = {
|
| 2841 |
"IGNORE_CONSISTENCY": self.op.ignore_consistency, |
| 2842 |
"SHUTDOWN_TIMEOUT": self.op.shutdown_timeout, |
| 2843 |
"OLD_PRIMARY": source_node,
|
| 2844 |
"NEW_PRIMARY": target_node,
|
| 2845 |
} |
| 2846 |
|
| 2847 |
if instance.disk_template in constants.DTS_INT_MIRROR: |
| 2848 |
env["OLD_SECONDARY"] = instance.secondary_nodes[0] |
| 2849 |
env["NEW_SECONDARY"] = source_node
|
| 2850 |
else:
|
| 2851 |
env["OLD_SECONDARY"] = env["NEW_SECONDARY"] = "" |
| 2852 |
|
| 2853 |
env.update(_BuildInstanceHookEnvByObject(self, instance))
|
| 2854 |
|
| 2855 |
return env
|
| 2856 |
|
| 2857 |
def BuildHooksNodes(self): |
| 2858 |
"""Build hooks nodes.
|
| 2859 |
|
| 2860 |
"""
|
| 2861 |
instance = self._migrater.instance
|
| 2862 |
nl = [self.cfg.GetMasterNode()] + list(instance.secondary_nodes) |
| 2863 |
return (nl, nl + [instance.primary_node])
|
| 2864 |
|
| 2865 |
|
| 2866 |
class LUInstanceMigrate(LogicalUnit): |
| 2867 |
"""Migrate an instance.
|
| 2868 |
|
| 2869 |
This is migration without shutting down, compared to the failover,
|
| 2870 |
which is done with shutdown.
|
| 2871 |
|
| 2872 |
"""
|
| 2873 |
HPATH = "instance-migrate"
|
| 2874 |
HTYPE = constants.HTYPE_INSTANCE |
| 2875 |
REQ_BGL = False
|
| 2876 |
|
| 2877 |
def ExpandNames(self): |
| 2878 |
self._ExpandAndLockInstance()
|
| 2879 |
_ExpandNamesForMigration(self)
|
| 2880 |
|
| 2881 |
self._migrater = \
|
| 2882 |
TLMigrateInstance(self, self.op.instance_name, self.op.cleanup, |
| 2883 |
False, self.op.allow_failover, False, |
| 2884 |
self.op.allow_runtime_changes,
|
| 2885 |
constants.DEFAULT_SHUTDOWN_TIMEOUT, |
| 2886 |
self.op.ignore_ipolicy)
|
| 2887 |
|
| 2888 |
self.tasklets = [self._migrater] |
| 2889 |
|
| 2890 |
def DeclareLocks(self, level): |
| 2891 |
_DeclareLocksForMigration(self, level)
|
| 2892 |
|
| 2893 |
def BuildHooksEnv(self): |
| 2894 |
"""Build hooks env.
|
| 2895 |
|
| 2896 |
This runs on master, primary and secondary nodes of the instance.
|
| 2897 |
|
| 2898 |
"""
|
| 2899 |
instance = self._migrater.instance
|
| 2900 |
source_node = instance.primary_node |
| 2901 |
target_node = self.op.target_node
|
| 2902 |
env = _BuildInstanceHookEnvByObject(self, instance)
|
| 2903 |
env.update({
|
| 2904 |
"MIGRATE_LIVE": self._migrater.live, |
| 2905 |
"MIGRATE_CLEANUP": self.op.cleanup, |
| 2906 |
"OLD_PRIMARY": source_node,
|
| 2907 |
"NEW_PRIMARY": target_node,
|
| 2908 |
"ALLOW_RUNTIME_CHANGES": self.op.allow_runtime_changes, |
| 2909 |
}) |
| 2910 |
|
| 2911 |
if instance.disk_template in constants.DTS_INT_MIRROR: |
| 2912 |
env["OLD_SECONDARY"] = target_node
|
| 2913 |
env["NEW_SECONDARY"] = source_node
|
| 2914 |
else:
|
| 2915 |
env["OLD_SECONDARY"] = env["NEW_SECONDARY"] = None |
| 2916 |
|
| 2917 |
return env
|
| 2918 |
|
| 2919 |
def BuildHooksNodes(self): |
| 2920 |
"""Build hooks nodes.
|
| 2921 |
|
| 2922 |
"""
|
| 2923 |
instance = self._migrater.instance
|
| 2924 |
snodes = list(instance.secondary_nodes)
|
| 2925 |
nl = [self.cfg.GetMasterNode(), instance.primary_node] + snodes
|
| 2926 |
return (nl, nl)
|
| 2927 |
|
| 2928 |
|
| 2929 |
class LUInstanceMultiAlloc(NoHooksLU): |
| 2930 |
"""Allocates multiple instances at the same time.
|
| 2931 |
|
| 2932 |
"""
|
| 2933 |
REQ_BGL = False
|
| 2934 |
|
| 2935 |
def CheckArguments(self): |
| 2936 |
"""Check arguments.
|
| 2937 |
|
| 2938 |
"""
|
| 2939 |
nodes = [] |
| 2940 |
for inst in self.op.instances: |
| 2941 |
if inst.iallocator is not None: |
| 2942 |
raise errors.OpPrereqError("iallocator are not allowed to be set on" |
| 2943 |
" instance objects", errors.ECODE_INVAL)
|
| 2944 |
nodes.append(bool(inst.pnode))
|
| 2945 |
if inst.disk_template in constants.DTS_INT_MIRROR: |
| 2946 |
nodes.append(bool(inst.snode))
|
| 2947 |
|
| 2948 |
has_nodes = compat.any(nodes) |
| 2949 |
if compat.all(nodes) ^ has_nodes:
|
| 2950 |
raise errors.OpPrereqError("There are instance objects providing" |
| 2951 |
" pnode/snode while others do not",
|
| 2952 |
errors.ECODE_INVAL) |
| 2953 |
|
| 2954 |
if self.op.iallocator is None: |
| 2955 |
default_iallocator = self.cfg.GetDefaultIAllocator()
|
| 2956 |
if default_iallocator and has_nodes: |
| 2957 |
self.op.iallocator = default_iallocator
|
| 2958 |
else:
|
| 2959 |
raise errors.OpPrereqError("No iallocator or nodes on the instances" |
| 2960 |
" given and no cluster-wide default"
|
| 2961 |
" iallocator found; please specify either"
|
| 2962 |
" an iallocator or nodes on the instances"
|
| 2963 |
" or set a cluster-wide default iallocator",
|
| 2964 |
errors.ECODE_INVAL) |
| 2965 |
|
| 2966 |
_CheckOpportunisticLocking(self.op)
|
| 2967 |
|
| 2968 |
dups = utils.FindDuplicates([op.instance_name for op in self.op.instances]) |
| 2969 |
if dups:
|
| 2970 |
raise errors.OpPrereqError("There are duplicate instance names: %s" % |
| 2971 |
utils.CommaJoin(dups), errors.ECODE_INVAL) |
| 2972 |
|
| 2973 |
def ExpandNames(self): |
| 2974 |
"""Calculate the locks.
|
| 2975 |
|
| 2976 |
"""
|
| 2977 |
self.share_locks = _ShareAll()
|
| 2978 |
self.needed_locks = {
|
| 2979 |
# iallocator will select nodes and even if no iallocator is used,
|
| 2980 |
# collisions with LUInstanceCreate should be avoided
|
| 2981 |
locking.LEVEL_NODE_ALLOC: locking.ALL_SET, |
| 2982 |
} |
| 2983 |
|
| 2984 |
if self.op.iallocator: |
| 2985 |
self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
|
| 2986 |
self.needed_locks[locking.LEVEL_NODE_RES] = locking.ALL_SET
|
| 2987 |
|
| 2988 |
if self.op.opportunistic_locking: |
| 2989 |
self.opportunistic_locks[locking.LEVEL_NODE] = True |
| 2990 |
self.opportunistic_locks[locking.LEVEL_NODE_RES] = True |
| 2991 |
else:
|
| 2992 |
nodeslist = [] |
| 2993 |
for inst in self.op.instances: |
| 2994 |
inst.pnode = _ExpandNodeName(self.cfg, inst.pnode)
|
| 2995 |
nodeslist.append(inst.pnode) |
| 2996 |
if inst.snode is not None: |
| 2997 |
inst.snode = _ExpandNodeName(self.cfg, inst.snode)
|
| 2998 |
nodeslist.append(inst.snode) |
| 2999 |
|
| 3000 |
self.needed_locks[locking.LEVEL_NODE] = nodeslist
|
| 3001 |
# Lock resources of instance's primary and secondary nodes (copy to
|
| 3002 |
# prevent accidential modification)
|
| 3003 |
self.needed_locks[locking.LEVEL_NODE_RES] = list(nodeslist) |
| 3004 |
|
| 3005 |
def CheckPrereq(self): |
| 3006 |
"""Check prerequisite.
|
| 3007 |
|
| 3008 |
"""
|
| 3009 |
cluster = self.cfg.GetClusterInfo()
|
| 3010 |
default_vg = self.cfg.GetVGName()
|
| 3011 |
ec_id = self.proc.GetECId()
|
| 3012 |
|
| 3013 |
if self.op.opportunistic_locking: |
| 3014 |
# Only consider nodes for which a lock is held
|
| 3015 |
node_whitelist = list(self.owned_locks(locking.LEVEL_NODE)) |
| 3016 |
else:
|
| 3017 |
node_whitelist = None
|
| 3018 |
|
| 3019 |
insts = [_CreateInstanceAllocRequest(op, _ComputeDisks(op, default_vg), |
| 3020 |
_ComputeNics(op, cluster, None,
|
| 3021 |
self.cfg, ec_id),
|
| 3022 |
_ComputeFullBeParams(op, cluster), |
| 3023 |
node_whitelist) |
| 3024 |
for op in self.op.instances] |
| 3025 |
|
| 3026 |
req = iallocator.IAReqMultiInstanceAlloc(instances=insts) |
| 3027 |
ial = iallocator.IAllocator(self.cfg, self.rpc, req) |
| 3028 |
|
| 3029 |
ial.Run(self.op.iallocator)
|
| 3030 |
|
| 3031 |
if not ial.success: |
| 3032 |
raise errors.OpPrereqError("Can't compute nodes using" |
| 3033 |
" iallocator '%s': %s" %
|
| 3034 |
(self.op.iallocator, ial.info),
|
| 3035 |
errors.ECODE_NORES) |
| 3036 |
|
| 3037 |
self.ia_result = ial.result
|
| 3038 |
|
| 3039 |
if self.op.dry_run: |
| 3040 |
self.dry_run_result = objects.FillDict(self._ConstructPartialResult(), { |
| 3041 |
constants.JOB_IDS_KEY: [], |
| 3042 |
}) |
| 3043 |
|
| 3044 |
def _ConstructPartialResult(self): |
| 3045 |
"""Contructs the partial result.
|
| 3046 |
|
| 3047 |
"""
|
| 3048 |
(allocatable, failed) = self.ia_result
|
| 3049 |
return {
|
| 3050 |
opcodes.OpInstanceMultiAlloc.ALLOCATABLE_KEY: |
| 3051 |
map(compat.fst, allocatable),
|
| 3052 |
opcodes.OpInstanceMultiAlloc.FAILED_KEY: failed, |
| 3053 |
} |
| 3054 |
|
| 3055 |
def Exec(self, feedback_fn): |
| 3056 |
"""Executes the opcode.
|
| 3057 |
|
| 3058 |
"""
|
| 3059 |
op2inst = dict((op.instance_name, op) for op in self.op.instances) |
| 3060 |
(allocatable, failed) = self.ia_result
|
| 3061 |
|
| 3062 |
jobs = [] |
| 3063 |
for (name, nodes) in allocatable: |
| 3064 |
op = op2inst.pop(name) |
| 3065 |
|
| 3066 |
if len(nodes) > 1: |
| 3067 |
(op.pnode, op.snode) = nodes |
| 3068 |
else:
|
| 3069 |
(op.pnode,) = nodes |
| 3070 |
|
| 3071 |
jobs.append([op]) |
| 3072 |
|
| 3073 |
missing = set(op2inst.keys()) - set(failed) |
| 3074 |
assert not missing, \ |
| 3075 |
"Iallocator did return incomplete result: %s" % utils.CommaJoin(missing)
|
| 3076 |
|
| 3077 |
return ResultWithJobs(jobs, **self._ConstructPartialResult()) |
| 3078 |
|
| 3079 |
|
| 3080 |
class _InstNicModPrivate: |
| 3081 |
"""Data structure for network interface modifications.
|
| 3082 |
|
| 3083 |
Used by L{LUInstanceSetParams}.
|
| 3084 |
|
| 3085 |
"""
|
| 3086 |
def __init__(self): |
| 3087 |
self.params = None |
| 3088 |
self.filled = None |
| 3089 |
|
| 3090 |
|
| 3091 |
def PrepareContainerMods(mods, private_fn): |
| 3092 |
"""Prepares a list of container modifications by adding a private data field.
|
| 3093 |
|
| 3094 |
@type mods: list of tuples; (operation, index, parameters)
|
| 3095 |
@param mods: List of modifications
|
| 3096 |
@type private_fn: callable or None
|
| 3097 |
@param private_fn: Callable for constructing a private data field for a
|
| 3098 |
modification
|
| 3099 |
@rtype: list
|
| 3100 |
|
| 3101 |
"""
|
| 3102 |
if private_fn is None: |
| 3103 |
fn = lambda: None |
| 3104 |
else:
|
| 3105 |
fn = private_fn |
| 3106 |
|
| 3107 |
return [(op, idx, params, fn()) for (op, idx, params) in mods] |
| 3108 |
|
| 3109 |
|
| 3110 |
def _CheckNodesPhysicalCPUs(lu, nodenames, requested, hypervisor_name): |
| 3111 |
"""Checks if nodes have enough physical CPUs
|
| 3112 |
|
| 3113 |
This function checks if all given nodes have the needed number of
|
| 3114 |
physical CPUs. In case any node has less CPUs or we cannot get the
|
| 3115 |
information from the node, this function raises an OpPrereqError
|
| 3116 |
exception.
|
| 3117 |
|
| 3118 |
@type lu: C{LogicalUnit}
|
| 3119 |
@param lu: a logical unit from which we get configuration data
|
| 3120 |
@type nodenames: C{list}
|
| 3121 |
@param nodenames: the list of node names to check
|
| 3122 |
@type requested: C{int}
|
| 3123 |
@param requested: the minimum acceptable number of physical CPUs
|
| 3124 |
@raise errors.OpPrereqError: if the node doesn't have enough CPUs,
|
| 3125 |
or we cannot check the node
|
| 3126 |
|
| 3127 |
"""
|
| 3128 |
nodeinfo = lu.rpc.call_node_info(nodenames, None, [hypervisor_name], None) |
| 3129 |
for node in nodenames: |
| 3130 |
info = nodeinfo[node] |
| 3131 |
info.Raise("Cannot get current information from node %s" % node,
|
| 3132 |
prereq=True, ecode=errors.ECODE_ENVIRON)
|
| 3133 |
(_, _, (hv_info, )) = info.payload |
| 3134 |
num_cpus = hv_info.get("cpu_total", None) |
| 3135 |
if not isinstance(num_cpus, int): |
| 3136 |
raise errors.OpPrereqError("Can't compute the number of physical CPUs" |
| 3137 |
" on node %s, result was '%s'" %
|
| 3138 |
(node, num_cpus), errors.ECODE_ENVIRON) |
| 3139 |
if requested > num_cpus:
|
| 3140 |
raise errors.OpPrereqError("Node %s has %s physical CPUs, but %s are " |
| 3141 |
"required" % (node, num_cpus, requested),
|
| 3142 |
errors.ECODE_NORES) |
| 3143 |
|
| 3144 |
|
| 3145 |
def GetItemFromContainer(identifier, kind, container): |
| 3146 |
"""Return the item refered by the identifier.
|
| 3147 |
|
| 3148 |
@type identifier: string
|
| 3149 |
@param identifier: Item index or name or UUID
|
| 3150 |
@type kind: string
|
| 3151 |
@param kind: One-word item description
|
| 3152 |
@type container: list
|
| 3153 |
@param container: Container to get the item from
|
| 3154 |
|
| 3155 |
"""
|
| 3156 |
# Index
|
| 3157 |
try:
|
| 3158 |
idx = int(identifier)
|
| 3159 |
if idx == -1: |
| 3160 |
# Append
|
| 3161 |
absidx = len(container) - 1 |
| 3162 |
elif idx < 0: |
| 3163 |
raise IndexError("Not accepting negative indices other than -1") |
| 3164 |
elif idx > len(container): |
| 3165 |
raise IndexError("Got %s index %s, but there are only %s" % |
| 3166 |
(kind, idx, len(container)))
|
| 3167 |
else:
|
| 3168 |
absidx = idx |
| 3169 |
return (absidx, container[idx])
|
| 3170 |
except ValueError: |
| 3171 |
pass
|
| 3172 |
|
| 3173 |
for idx, item in enumerate(container): |
| 3174 |
if item.uuid == identifier or item.name == identifier: |
| 3175 |
return (idx, item)
|
| 3176 |
|
| 3177 |
raise errors.OpPrereqError("Cannot find %s with identifier %s" % |
| 3178 |
(kind, identifier), errors.ECODE_NOENT) |
| 3179 |
|
| 3180 |
|
| 3181 |
def ApplyContainerMods(kind, container, chgdesc, mods, |
| 3182 |
create_fn, modify_fn, remove_fn): |
| 3183 |
"""Applies descriptions in C{mods} to C{container}.
|
| 3184 |
|
| 3185 |
@type kind: string
|
| 3186 |
@param kind: One-word item description
|
| 3187 |
@type container: list
|
| 3188 |
@param container: Container to modify
|
| 3189 |
@type chgdesc: None or list
|
| 3190 |
@param chgdesc: List of applied changes
|
| 3191 |
@type mods: list
|
| 3192 |
@param mods: Modifications as returned by L{PrepareContainerMods}
|
| 3193 |
@type create_fn: callable
|
| 3194 |
@param create_fn: Callback for creating a new item (L{constants.DDM_ADD});
|
| 3195 |
receives absolute item index, parameters and private data object as added
|
| 3196 |
by L{PrepareContainerMods}, returns tuple containing new item and changes
|
| 3197 |
as list
|
| 3198 |
@type modify_fn: callable
|
| 3199 |
@param modify_fn: Callback for modifying an existing item
|
| 3200 |
(L{constants.DDM_MODIFY}); receives absolute item index, item, parameters
|
| 3201 |
and private data object as added by L{PrepareContainerMods}, returns
|
| 3202 |
changes as list
|
| 3203 |
@type remove_fn: callable
|
| 3204 |
@param remove_fn: Callback on removing item; receives absolute item index,
|
| 3205 |
item and private data object as added by L{PrepareContainerMods}
|
| 3206 |
|
| 3207 |
"""
|
| 3208 |
for (op, identifier, params, private) in mods: |
| 3209 |
changes = None
|
| 3210 |
|
| 3211 |
if op == constants.DDM_ADD:
|
| 3212 |
# Calculate where item will be added
|
| 3213 |
# When adding an item, identifier can only be an index
|
| 3214 |
try:
|
| 3215 |
idx = int(identifier)
|
| 3216 |
except ValueError: |
| 3217 |
raise errors.OpPrereqError("Only possitive integer or -1 is accepted as" |
| 3218 |
" identifier for %s" % constants.DDM_ADD,
|
| 3219 |
errors.ECODE_INVAL) |
| 3220 |
if idx == -1: |
| 3221 |
addidx = len(container)
|
| 3222 |
else:
|
| 3223 |
if idx < 0: |
| 3224 |
raise IndexError("Not accepting negative indices other than -1") |
| 3225 |
elif idx > len(container): |
| 3226 |
raise IndexError("Got %s index %s, but there are only %s" % |
| 3227 |
(kind, idx, len(container)))
|
| 3228 |
addidx = idx |
| 3229 |
|
| 3230 |
if create_fn is None: |
| 3231 |
item = params |
| 3232 |
else:
|
| 3233 |
(item, changes) = create_fn(addidx, params, private) |
| 3234 |
|
| 3235 |
if idx == -1: |
| 3236 |
container.append(item) |
| 3237 |
else:
|
| 3238 |
assert idx >= 0 |
| 3239 |
assert idx <= len(container) |
| 3240 |
# list.insert does so before the specified index
|
| 3241 |
container.insert(idx, item) |
| 3242 |
else:
|
| 3243 |
# Retrieve existing item
|
| 3244 |
(absidx, item) = GetItemFromContainer(identifier, kind, container) |
| 3245 |
|
| 3246 |
if op == constants.DDM_REMOVE:
|
| 3247 |
assert not params |
| 3248 |
|
| 3249 |
if remove_fn is not None: |
| 3250 |
remove_fn(absidx, item, private) |
| 3251 |
|
| 3252 |
changes = [("%s/%s" % (kind, absidx), "remove")] |
| 3253 |
|
| 3254 |
assert container[absidx] == item
|
| 3255 |
del container[absidx]
|
| 3256 |
elif op == constants.DDM_MODIFY:
|
| 3257 |
if modify_fn is not None: |
| 3258 |
changes = modify_fn(absidx, item, params, private) |
| 3259 |
else:
|
| 3260 |
raise errors.ProgrammerError("Unhandled operation '%s'" % op) |
| 3261 |
|
| 3262 |
assert _TApplyContModsCbChanges(changes)
|
| 3263 |
|
| 3264 |
if not (chgdesc is None or changes is None): |
| 3265 |
chgdesc.extend(changes) |
| 3266 |
|
| 3267 |
|
| 3268 |
def _UpdateIvNames(base_index, disks): |
| 3269 |
"""Updates the C{iv_name} attribute of disks.
|
| 3270 |
|
| 3271 |
@type disks: list of L{objects.Disk}
|
| 3272 |
|
| 3273 |
"""
|
| 3274 |
for (idx, disk) in enumerate(disks): |
| 3275 |
disk.iv_name = "disk/%s" % (base_index + idx, )
|
| 3276 |
|
| 3277 |
|
| 3278 |
class LUInstanceSetParams(LogicalUnit): |
| 3279 |
"""Modifies an instances's parameters.
|
| 3280 |
|
| 3281 |
"""
|
| 3282 |
HPATH = "instance-modify"
|
| 3283 |
HTYPE = constants.HTYPE_INSTANCE |
| 3284 |
REQ_BGL = False
|
| 3285 |
|
| 3286 |
@staticmethod
|
| 3287 |
def _UpgradeDiskNicMods(kind, mods, verify_fn): |
| 3288 |
assert ht.TList(mods)
|
| 3289 |
assert not mods or len(mods[0]) in (2, 3) |
| 3290 |
|
| 3291 |
if mods and len(mods[0]) == 2: |
| 3292 |
result = [] |
| 3293 |
|
| 3294 |
addremove = 0
|
| 3295 |
for op, params in mods: |
| 3296 |
if op in (constants.DDM_ADD, constants.DDM_REMOVE): |
| 3297 |
result.append((op, -1, params))
|
| 3298 |
addremove += 1
|
| 3299 |
|
| 3300 |
if addremove > 1: |
| 3301 |
raise errors.OpPrereqError("Only one %s add or remove operation is" |
| 3302 |
" supported at a time" % kind,
|
| 3303 |
errors.ECODE_INVAL) |
| 3304 |
else:
|
| 3305 |
result.append((constants.DDM_MODIFY, op, params)) |
| 3306 |
|
| 3307 |
assert verify_fn(result)
|
| 3308 |
else:
|
| 3309 |
result = mods |
| 3310 |
|
| 3311 |
return result
|
| 3312 |
|
| 3313 |
@staticmethod
|
| 3314 |
def _CheckMods(kind, mods, key_types, item_fn): |
| 3315 |
"""Ensures requested disk/NIC modifications are valid.
|
| 3316 |
|
| 3317 |
"""
|
| 3318 |
for (op, _, params) in mods: |
| 3319 |
assert ht.TDict(params)
|
| 3320 |
|
| 3321 |
# If 'key_types' is an empty dict, we assume we have an
|
| 3322 |
# 'ext' template and thus do not ForceDictType
|
| 3323 |
if key_types:
|
| 3324 |
utils.ForceDictType(params, key_types) |
| 3325 |
|
| 3326 |
if op == constants.DDM_REMOVE:
|
| 3327 |
if params:
|
| 3328 |
raise errors.OpPrereqError("No settings should be passed when" |
| 3329 |
" removing a %s" % kind,
|
| 3330 |
errors.ECODE_INVAL) |
| 3331 |
elif op in (constants.DDM_ADD, constants.DDM_MODIFY): |
| 3332 |
item_fn(op, params) |
| 3333 |
else:
|
| 3334 |
raise errors.ProgrammerError("Unhandled operation '%s'" % op) |
| 3335 |
|
| 3336 |
@staticmethod
|
| 3337 |
def _VerifyDiskModification(op, params): |
| 3338 |
"""Verifies a disk modification.
|
| 3339 |
|
| 3340 |
"""
|
| 3341 |
if op == constants.DDM_ADD:
|
| 3342 |
mode = params.setdefault(constants.IDISK_MODE, constants.DISK_RDWR) |
| 3343 |
if mode not in constants.DISK_ACCESS_SET: |
| 3344 |
raise errors.OpPrereqError("Invalid disk access mode '%s'" % mode, |
| 3345 |
errors.ECODE_INVAL) |
| 3346 |
|
| 3347 |
size = params.get(constants.IDISK_SIZE, None)
|
| 3348 |
if size is None: |
| 3349 |
raise errors.OpPrereqError("Required disk parameter '%s' missing" % |
| 3350 |
constants.IDISK_SIZE, errors.ECODE_INVAL) |
| 3351 |
|
| 3352 |
try:
|
| 3353 |
size = int(size)
|
| 3354 |
except (TypeError, ValueError), err: |
| 3355 |
raise errors.OpPrereqError("Invalid disk size parameter: %s" % err, |
| 3356 |
errors.ECODE_INVAL) |
| 3357 |
|
| 3358 |
params[constants.IDISK_SIZE] = size |
| 3359 |
name = params.get(constants.IDISK_NAME, None)
|
| 3360 |
if name is not None and name.lower() == constants.VALUE_NONE: |
| 3361 |
params[constants.IDISK_NAME] = None
|
| 3362 |
|
| 3363 |
elif op == constants.DDM_MODIFY:
|
| 3364 |
if constants.IDISK_SIZE in params: |
| 3365 |
raise errors.OpPrereqError("Disk size change not possible, use" |
| 3366 |
" grow-disk", errors.ECODE_INVAL)
|
| 3367 |
if len(params) > 2: |
| 3368 |
raise errors.OpPrereqError("Disk modification doesn't support" |
| 3369 |
" additional arbitrary parameters",
|
| 3370 |
errors.ECODE_INVAL) |
| 3371 |
name = params.get(constants.IDISK_NAME, None)
|
| 3372 |
if name is not None and name.lower() == constants.VALUE_NONE: |
| 3373 |
params[constants.IDISK_NAME] = None
|
| 3374 |
|
| 3375 |
@staticmethod
|
| 3376 |
def _VerifyNicModification(op, params): |
| 3377 |
"""Verifies a network interface modification.
|
| 3378 |
|
| 3379 |
"""
|
| 3380 |
if op in (constants.DDM_ADD, constants.DDM_MODIFY): |
| 3381 |
ip = params.get(constants.INIC_IP, None)
|
| 3382 |
name = params.get(constants.INIC_NAME, None)
|
| 3383 |
req_net = params.get(constants.INIC_NETWORK, None)
|
| 3384 |
link = params.get(constants.NIC_LINK, None)
|
| 3385 |
mode = params.get(constants.NIC_MODE, None)
|
| 3386 |
if name is not None and name.lower() == constants.VALUE_NONE: |
| 3387 |
params[constants.INIC_NAME] = None
|
| 3388 |
if req_net is not None: |
| 3389 |
if req_net.lower() == constants.VALUE_NONE:
|
| 3390 |
params[constants.INIC_NETWORK] = None
|
| 3391 |
req_net = None
|
| 3392 |
elif link is not None or mode is not None: |
| 3393 |
raise errors.OpPrereqError("If network is given" |
| 3394 |
" mode or link should not",
|
| 3395 |
errors.ECODE_INVAL) |
| 3396 |
|
| 3397 |
if op == constants.DDM_ADD:
|
| 3398 |
macaddr = params.get(constants.INIC_MAC, None)
|
| 3399 |
if macaddr is None: |
| 3400 |
params[constants.INIC_MAC] = constants.VALUE_AUTO |
| 3401 |
|
| 3402 |
if ip is not None: |
| 3403 |
if ip.lower() == constants.VALUE_NONE:
|
| 3404 |
params[constants.INIC_IP] = None
|
| 3405 |
else:
|
| 3406 |
if ip.lower() == constants.NIC_IP_POOL:
|
| 3407 |
if op == constants.DDM_ADD and req_net is None: |
| 3408 |
raise errors.OpPrereqError("If ip=pool, parameter network" |
| 3409 |
" cannot be none",
|
| 3410 |
errors.ECODE_INVAL) |
| 3411 |
else:
|
| 3412 |
if not netutils.IPAddress.IsValid(ip): |
| 3413 |
raise errors.OpPrereqError("Invalid IP address '%s'" % ip, |
| 3414 |
errors.ECODE_INVAL) |
| 3415 |
|
| 3416 |
if constants.INIC_MAC in params: |
| 3417 |
macaddr = params[constants.INIC_MAC] |
| 3418 |
if macaddr not in (constants.VALUE_AUTO, constants.VALUE_GENERATE): |
| 3419 |
macaddr = utils.NormalizeAndValidateMac(macaddr) |
| 3420 |
|
| 3421 |
if op == constants.DDM_MODIFY and macaddr == constants.VALUE_AUTO: |
| 3422 |
raise errors.OpPrereqError("'auto' is not a valid MAC address when" |
| 3423 |
" modifying an existing NIC",
|
| 3424 |
errors.ECODE_INVAL) |
| 3425 |
|
| 3426 |
def CheckArguments(self): |
| 3427 |
if not (self.op.nics or self.op.disks or self.op.disk_template or |
| 3428 |
self.op.hvparams or self.op.beparams or self.op.os_name or |
| 3429 |
self.op.offline is not None or self.op.runtime_mem or |
| 3430 |
self.op.pnode):
|
| 3431 |
raise errors.OpPrereqError("No changes submitted", errors.ECODE_INVAL) |
| 3432 |
|
| 3433 |
if self.op.hvparams: |
| 3434 |
_CheckParamsNotGlobal(self.op.hvparams, constants.HVC_GLOBALS,
|
| 3435 |
"hypervisor", "instance", "cluster") |
| 3436 |
|
| 3437 |
self.op.disks = self._UpgradeDiskNicMods( |
| 3438 |
"disk", self.op.disks, opcodes.OpInstanceSetParams.TestDiskModifications) |
| 3439 |
self.op.nics = self._UpgradeDiskNicMods( |
| 3440 |
"NIC", self.op.nics, opcodes.OpInstanceSetParams.TestNicModifications) |
| 3441 |
|
| 3442 |
if self.op.disks and self.op.disk_template is not None: |
| 3443 |
raise errors.OpPrereqError("Disk template conversion and other disk" |
| 3444 |
" changes not supported at the same time",
|
| 3445 |
errors.ECODE_INVAL) |
| 3446 |
|
| 3447 |
if (self.op.disk_template and |
| 3448 |
self.op.disk_template in constants.DTS_INT_MIRROR and |
| 3449 |
self.op.remote_node is None): |
| 3450 |
raise errors.OpPrereqError("Changing the disk template to a mirrored" |
| 3451 |
" one requires specifying a secondary node",
|
| 3452 |
errors.ECODE_INVAL) |
| 3453 |
|
| 3454 |
# Check NIC modifications
|
| 3455 |
self._CheckMods("NIC", self.op.nics, constants.INIC_PARAMS_TYPES, |
| 3456 |
self._VerifyNicModification)
|
| 3457 |
|
| 3458 |
if self.op.pnode: |
| 3459 |
self.op.pnode = _ExpandNodeName(self.cfg, self.op.pnode) |
| 3460 |
|
| 3461 |
def ExpandNames(self): |
| 3462 |
self._ExpandAndLockInstance()
|
| 3463 |
self.needed_locks[locking.LEVEL_NODEGROUP] = []
|
| 3464 |
# Can't even acquire node locks in shared mode as upcoming changes in
|
| 3465 |
# Ganeti 2.6 will start to modify the node object on disk conversion
|
| 3466 |
self.needed_locks[locking.LEVEL_NODE] = []
|
| 3467 |
self.needed_locks[locking.LEVEL_NODE_RES] = []
|
| 3468 |
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
|
| 3469 |
# Look node group to look up the ipolicy
|
| 3470 |
self.share_locks[locking.LEVEL_NODEGROUP] = 1 |
| 3471 |
|
| 3472 |
def DeclareLocks(self, level): |
| 3473 |
if level == locking.LEVEL_NODEGROUP:
|
| 3474 |
assert not self.needed_locks[locking.LEVEL_NODEGROUP] |
| 3475 |
# Acquire locks for the instance's nodegroups optimistically. Needs
|
| 3476 |
# to be verified in CheckPrereq
|
| 3477 |
self.needed_locks[locking.LEVEL_NODEGROUP] = \
|
| 3478 |
self.cfg.GetInstanceNodeGroups(self.op.instance_name) |
| 3479 |
elif level == locking.LEVEL_NODE:
|
| 3480 |
self._LockInstancesNodes()
|
| 3481 |
if self.op.disk_template and self.op.remote_node: |
| 3482 |
self.op.remote_node = _ExpandNodeName(self.cfg, self.op.remote_node) |
| 3483 |
self.needed_locks[locking.LEVEL_NODE].append(self.op.remote_node) |
| 3484 |
elif level == locking.LEVEL_NODE_RES and self.op.disk_template: |
| 3485 |
# Copy node locks
|
| 3486 |
self.needed_locks[locking.LEVEL_NODE_RES] = \
|
| 3487 |
_CopyLockList(self.needed_locks[locking.LEVEL_NODE])
|
| 3488 |
|
| 3489 |
def BuildHooksEnv(self): |
| 3490 |
"""Build hooks env.
|
| 3491 |
|
| 3492 |
This runs on the master, primary and secondaries.
|
| 3493 |
|
| 3494 |
"""
|
| 3495 |
args = {}
|
| 3496 |
if constants.BE_MINMEM in self.be_new: |
| 3497 |
args["minmem"] = self.be_new[constants.BE_MINMEM] |
| 3498 |
if constants.BE_MAXMEM in self.be_new: |
| 3499 |
args["maxmem"] = self.be_new[constants.BE_MAXMEM] |
| 3500 |
if constants.BE_VCPUS in self.be_new: |
| 3501 |
args["vcpus"] = self.be_new[constants.BE_VCPUS] |
| 3502 |
# TODO: export disk changes. Note: _BuildInstanceHookEnv* don't export disk
|
| 3503 |
# information at all.
|
| 3504 |
|
| 3505 |
if self._new_nics is not None: |
| 3506 |
nics = [] |
| 3507 |
|
| 3508 |
for nic in self._new_nics: |
| 3509 |
n = copy.deepcopy(nic) |
| 3510 |
nicparams = self.cluster.SimpleFillNIC(n.nicparams)
|
| 3511 |
n.nicparams = nicparams |
| 3512 |
nics.append(_NICToTuple(self, n))
|
| 3513 |
|
| 3514 |
args["nics"] = nics
|
| 3515 |
|
| 3516 |
env = _BuildInstanceHookEnvByObject(self, self.instance, override=args) |
| 3517 |
if self.op.disk_template: |
| 3518 |
env["NEW_DISK_TEMPLATE"] = self.op.disk_template |
| 3519 |
if self.op.runtime_mem: |
| 3520 |
env["RUNTIME_MEMORY"] = self.op.runtime_mem |
| 3521 |
|
| 3522 |
return env
|
| 3523 |
|
| 3524 |
def BuildHooksNodes(self): |
| 3525 |
"""Build hooks nodes.
|
| 3526 |
|
| 3527 |
"""
|
| 3528 |
nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes) |
| 3529 |
return (nl, nl)
|
| 3530 |
|
| 3531 |
def _PrepareNicModification(self, params, private, old_ip, old_net_uuid, |
| 3532 |
old_params, cluster, pnode): |
| 3533 |
|
| 3534 |
update_params_dict = dict([(key, params[key])
|
| 3535 |
for key in constants.NICS_PARAMETERS |
| 3536 |
if key in params]) |
| 3537 |
|
| 3538 |
req_link = update_params_dict.get(constants.NIC_LINK, None)
|
| 3539 |
req_mode = update_params_dict.get(constants.NIC_MODE, None)
|
| 3540 |
|
| 3541 |
new_net_uuid = None
|
| 3542 |
new_net_uuid_or_name = params.get(constants.INIC_NETWORK, old_net_uuid) |
| 3543 |
if new_net_uuid_or_name:
|
| 3544 |
new_net_uuid = self.cfg.LookupNetwork(new_net_uuid_or_name)
|
| 3545 |
new_net_obj = self.cfg.GetNetwork(new_net_uuid)
|
| 3546 |
|
| 3547 |
if old_net_uuid:
|
| 3548 |
old_net_obj = self.cfg.GetNetwork(old_net_uuid)
|
| 3549 |
|
| 3550 |
if new_net_uuid:
|
| 3551 |
netparams = self.cfg.GetGroupNetParams(new_net_uuid, pnode)
|
| 3552 |
if not netparams: |
| 3553 |
raise errors.OpPrereqError("No netparams found for the network" |
| 3554 |
" %s, probably not connected" %
|
| 3555 |
new_net_obj.name, errors.ECODE_INVAL) |
| 3556 |
new_params = dict(netparams)
|
| 3557 |
else:
|
| 3558 |
new_params = _GetUpdatedParams(old_params, update_params_dict) |
| 3559 |
|
| 3560 |
utils.ForceDictType(new_params, constants.NICS_PARAMETER_TYPES) |
| 3561 |
|
| 3562 |
new_filled_params = cluster.SimpleFillNIC(new_params) |
| 3563 |
objects.NIC.CheckParameterSyntax(new_filled_params) |
| 3564 |
|
| 3565 |
new_mode = new_filled_params[constants.NIC_MODE] |
| 3566 |
if new_mode == constants.NIC_MODE_BRIDGED:
|
| 3567 |
bridge = new_filled_params[constants.NIC_LINK] |
| 3568 |
msg = self.rpc.call_bridges_exist(pnode, [bridge]).fail_msg
|
| 3569 |
if msg:
|
| 3570 |
msg = "Error checking bridges on node '%s': %s" % (pnode, msg)
|
| 3571 |
if self.op.force: |
| 3572 |
self.warn.append(msg)
|
| 3573 |
else:
|
| 3574 |
raise errors.OpPrereqError(msg, errors.ECODE_ENVIRON)
|
| 3575 |
|
| 3576 |
elif new_mode == constants.NIC_MODE_ROUTED:
|
| 3577 |
ip = params.get(constants.INIC_IP, old_ip) |
| 3578 |
if ip is None: |
| 3579 |
raise errors.OpPrereqError("Cannot set the NIC IP address to None" |
| 3580 |
" on a routed NIC", errors.ECODE_INVAL)
|
| 3581 |
|
| 3582 |
elif new_mode == constants.NIC_MODE_OVS:
|
| 3583 |
# TODO: check OVS link
|
| 3584 |
self.LogInfo("OVS links are currently not checked for correctness") |
| 3585 |
|
| 3586 |
if constants.INIC_MAC in params: |
| 3587 |
mac = params[constants.INIC_MAC] |
| 3588 |
if mac is None: |
| 3589 |
raise errors.OpPrereqError("Cannot unset the NIC MAC address", |
| 3590 |
errors.ECODE_INVAL) |
| 3591 |
elif mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE): |
| 3592 |
# otherwise generate the MAC address
|
| 3593 |
params[constants.INIC_MAC] = \ |
| 3594 |
self.cfg.GenerateMAC(new_net_uuid, self.proc.GetECId()) |
| 3595 |
else:
|
| 3596 |
# or validate/reserve the current one
|
| 3597 |
try:
|
| 3598 |
self.cfg.ReserveMAC(mac, self.proc.GetECId()) |
| 3599 |
except errors.ReservationError:
|
| 3600 |
raise errors.OpPrereqError("MAC address '%s' already in use" |
| 3601 |
" in cluster" % mac,
|
| 3602 |
errors.ECODE_NOTUNIQUE) |
| 3603 |
elif new_net_uuid != old_net_uuid:
|
| 3604 |
|
| 3605 |
def get_net_prefix(net_uuid): |
| 3606 |
mac_prefix = None
|
| 3607 |
if net_uuid:
|
| 3608 |
nobj = self.cfg.GetNetwork(net_uuid)
|
| 3609 |
mac_prefix = nobj.mac_prefix |
| 3610 |
|
| 3611 |
return mac_prefix
|
| 3612 |
|
| 3613 |
new_prefix = get_net_prefix(new_net_uuid) |
| 3614 |
old_prefix = get_net_prefix(old_net_uuid) |
| 3615 |
if old_prefix != new_prefix:
|
| 3616 |
params[constants.INIC_MAC] = \ |
| 3617 |
self.cfg.GenerateMAC(new_net_uuid, self.proc.GetECId()) |
| 3618 |
|
| 3619 |
# if there is a change in (ip, network) tuple
|
| 3620 |
new_ip = params.get(constants.INIC_IP, old_ip) |
| 3621 |
if (new_ip, new_net_uuid) != (old_ip, old_net_uuid):
|
| 3622 |
if new_ip:
|
| 3623 |
# if IP is pool then require a network and generate one IP
|
| 3624 |
if new_ip.lower() == constants.NIC_IP_POOL:
|
| 3625 |
if new_net_uuid:
|
| 3626 |
try:
|
| 3627 |
new_ip = self.cfg.GenerateIp(new_net_uuid, self.proc.GetECId()) |
| 3628 |
except errors.ReservationError:
|
| 3629 |
raise errors.OpPrereqError("Unable to get a free IP" |
| 3630 |
" from the address pool",
|
| 3631 |
errors.ECODE_STATE) |
| 3632 |
self.LogInfo("Chose IP %s from network %s", |
| 3633 |
new_ip, |
| 3634 |
new_net_obj.name) |
| 3635 |
params[constants.INIC_IP] = new_ip |
| 3636 |
else:
|
| 3637 |
raise errors.OpPrereqError("ip=pool, but no network found", |
| 3638 |
errors.ECODE_INVAL) |
| 3639 |
# Reserve new IP if in the new network if any
|
| 3640 |
elif new_net_uuid:
|
| 3641 |
try:
|
| 3642 |
self.cfg.ReserveIp(new_net_uuid, new_ip, self.proc.GetECId()) |
| 3643 |
self.LogInfo("Reserving IP %s in network %s", |
| 3644 |
new_ip, new_net_obj.name) |
| 3645 |
except errors.ReservationError:
|
| 3646 |
raise errors.OpPrereqError("IP %s not available in network %s" % |
| 3647 |
(new_ip, new_net_obj.name), |
| 3648 |
errors.ECODE_NOTUNIQUE) |
| 3649 |
# new network is None so check if new IP is a conflicting IP
|
| 3650 |
elif self.op.conflicts_check: |
| 3651 |
_CheckForConflictingIp(self, new_ip, pnode)
|
| 3652 |
|
| 3653 |
# release old IP if old network is not None
|
| 3654 |
if old_ip and old_net_uuid: |
| 3655 |
try:
|
| 3656 |
self.cfg.ReleaseIp(old_net_uuid, old_ip, self.proc.GetECId()) |
| 3657 |
except errors.AddressPoolError:
|
| 3658 |
logging.warning("Release IP %s not contained in network %s",
|
| 3659 |
old_ip, old_net_obj.name) |
| 3660 |
|
| 3661 |
# there are no changes in (ip, network) tuple and old network is not None
|
| 3662 |
elif (old_net_uuid is not None and |
| 3663 |
(req_link is not None or req_mode is not None)): |
| 3664 |
raise errors.OpPrereqError("Not allowed to change link or mode of" |
| 3665 |
" a NIC that is connected to a network",
|
| 3666 |
errors.ECODE_INVAL) |
| 3667 |
|
| 3668 |
private.params = new_params |
| 3669 |
private.filled = new_filled_params |
| 3670 |
|
| 3671 |
def _PreCheckDiskTemplate(self, pnode_info): |
| 3672 |
"""CheckPrereq checks related to a new disk template."""
|
| 3673 |
# Arguments are passed to avoid configuration lookups
|
| 3674 |
instance = self.instance
|
| 3675 |
pnode = instance.primary_node |
| 3676 |
cluster = self.cluster
|
| 3677 |
if instance.disk_template == self.op.disk_template: |
| 3678 |
raise errors.OpPrereqError("Instance already has disk template %s" % |
| 3679 |
instance.disk_template, errors.ECODE_INVAL) |
| 3680 |
|
| 3681 |
if (instance.disk_template,
|
| 3682 |
self.op.disk_template) not in self._DISK_CONVERSIONS: |
| 3683 |
raise errors.OpPrereqError("Unsupported disk template conversion from" |
| 3684 |
" %s to %s" % (instance.disk_template,
|
| 3685 |
self.op.disk_template),
|
| 3686 |
errors.ECODE_INVAL) |
| 3687 |
_CheckInstanceState(self, instance, INSTANCE_DOWN,
|
| 3688 |
msg="cannot change disk template")
|
| 3689 |
if self.op.disk_template in constants.DTS_INT_MIRROR: |
| 3690 |
if self.op.remote_node == pnode: |
| 3691 |
raise errors.OpPrereqError("Given new secondary node %s is the same" |
| 3692 |
" as the primary node of the instance" %
|
| 3693 |
self.op.remote_node, errors.ECODE_STATE)
|
| 3694 |
_CheckNodeOnline(self, self.op.remote_node) |
| 3695 |
_CheckNodeNotDrained(self, self.op.remote_node) |
| 3696 |
# FIXME: here we assume that the old instance type is DT_PLAIN
|
| 3697 |
assert instance.disk_template == constants.DT_PLAIN
|
| 3698 |
disks = [{constants.IDISK_SIZE: d.size,
|
| 3699 |
constants.IDISK_VG: d.logical_id[0]}
|
| 3700 |
for d in instance.disks] |
| 3701 |
required = _ComputeDiskSizePerVG(self.op.disk_template, disks)
|
| 3702 |
_CheckNodesFreeDiskPerVG(self, [self.op.remote_node], required) |
| 3703 |
|
| 3704 |
snode_info = self.cfg.GetNodeInfo(self.op.remote_node) |
| 3705 |
snode_group = self.cfg.GetNodeGroup(snode_info.group)
|
| 3706 |
ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster, |
| 3707 |
snode_group) |
| 3708 |
_CheckTargetNodeIPolicy(self, ipolicy, instance, snode_info, self.cfg, |
| 3709 |
ignore=self.op.ignore_ipolicy)
|
| 3710 |
if pnode_info.group != snode_info.group:
|
| 3711 |
self.LogWarning("The primary and secondary nodes are in two" |
| 3712 |
" different node groups; the disk parameters"
|
| 3713 |
" from the first disk's node group will be"
|
| 3714 |
" used")
|
| 3715 |
|
| 3716 |
if not self.op.disk_template in constants.DTS_EXCL_STORAGE: |
| 3717 |
# Make sure none of the nodes require exclusive storage
|
| 3718 |
nodes = [pnode_info] |
| 3719 |
if self.op.disk_template in constants.DTS_INT_MIRROR: |
| 3720 |
assert snode_info
|
| 3721 |
nodes.append(snode_info) |
| 3722 |
has_es = lambda n: _IsExclusiveStorageEnabledNode(self.cfg, n) |
| 3723 |
if compat.any(map(has_es, nodes)): |
| 3724 |
errmsg = ("Cannot convert disk template from %s to %s when exclusive"
|
| 3725 |
" storage is enabled" % (instance.disk_template,
|
| 3726 |
self.op.disk_template))
|
| 3727 |
raise errors.OpPrereqError(errmsg, errors.ECODE_STATE)
|
| 3728 |
|
| 3729 |
def CheckPrereq(self): |
| 3730 |
"""Check prerequisites.
|
| 3731 |
|
| 3732 |
This only checks the instance list against the existing names.
|
| 3733 |
|
| 3734 |
"""
|
| 3735 |
assert self.op.instance_name in self.owned_locks(locking.LEVEL_INSTANCE) |
| 3736 |
instance = self.instance = self.cfg.GetInstanceInfo(self.op.instance_name) |
| 3737 |
|
| 3738 |
cluster = self.cluster = self.cfg.GetClusterInfo() |
| 3739 |
assert self.instance is not None, \ |
| 3740 |
"Cannot retrieve locked instance %s" % self.op.instance_name |
| 3741 |
|
| 3742 |
pnode = instance.primary_node |
| 3743 |
|
| 3744 |
self.warn = []
|
| 3745 |
|
| 3746 |
if (self.op.pnode is not None and self.op.pnode != pnode and |
| 3747 |
not self.op.force): |
| 3748 |
# verify that the instance is not up
|
| 3749 |
instance_info = self.rpc.call_instance_info(pnode, instance.name,
|
| 3750 |
instance.hypervisor) |
| 3751 |
if instance_info.fail_msg:
|
| 3752 |
self.warn.append("Can't get instance runtime information: %s" % |
| 3753 |
instance_info.fail_msg) |
| 3754 |
elif instance_info.payload:
|
| 3755 |
raise errors.OpPrereqError("Instance is still running on %s" % pnode, |
| 3756 |
errors.ECODE_STATE) |
| 3757 |
|
| 3758 |
assert pnode in self.owned_locks(locking.LEVEL_NODE) |
| 3759 |
nodelist = list(instance.all_nodes)
|
| 3760 |
pnode_info = self.cfg.GetNodeInfo(pnode)
|
| 3761 |
self.diskparams = self.cfg.GetInstanceDiskParams(instance) |
| 3762 |
|
| 3763 |
#_CheckInstanceNodeGroups(self.cfg, self.op.instance_name, owned_groups)
|
| 3764 |
assert pnode_info.group in self.owned_locks(locking.LEVEL_NODEGROUP) |
| 3765 |
group_info = self.cfg.GetNodeGroup(pnode_info.group)
|
| 3766 |
|
| 3767 |
# dictionary with instance information after the modification
|
| 3768 |
ispec = {}
|
| 3769 |
|
| 3770 |
# Check disk modifications. This is done here and not in CheckArguments
|
| 3771 |
# (as with NICs), because we need to know the instance's disk template
|
| 3772 |
if instance.disk_template == constants.DT_EXT:
|
| 3773 |
self._CheckMods("disk", self.op.disks, {}, |
| 3774 |
self._VerifyDiskModification)
|
| 3775 |
else:
|
| 3776 |
self._CheckMods("disk", self.op.disks, constants.IDISK_PARAMS_TYPES, |
| 3777 |
self._VerifyDiskModification)
|
| 3778 |
|
| 3779 |
# Prepare disk/NIC modifications
|
| 3780 |
self.diskmod = PrepareContainerMods(self.op.disks, None) |
| 3781 |
self.nicmod = PrepareContainerMods(self.op.nics, _InstNicModPrivate) |
| 3782 |
|
| 3783 |
# Check the validity of the `provider' parameter
|
| 3784 |
if instance.disk_template in constants.DT_EXT: |
| 3785 |
for mod in self.diskmod: |
| 3786 |
ext_provider = mod[2].get(constants.IDISK_PROVIDER, None) |
| 3787 |
if mod[0] == constants.DDM_ADD: |
| 3788 |
if ext_provider is None: |
| 3789 |
raise errors.OpPrereqError("Instance template is '%s' and parameter" |
| 3790 |
" '%s' missing, during disk add" %
|
| 3791 |
(constants.DT_EXT, |
| 3792 |
constants.IDISK_PROVIDER), |
| 3793 |
errors.ECODE_NOENT) |
| 3794 |
elif mod[0] == constants.DDM_MODIFY: |
| 3795 |
if ext_provider:
|
| 3796 |
raise errors.OpPrereqError("Parameter '%s' is invalid during disk" |
| 3797 |
" modification" %
|
| 3798 |
constants.IDISK_PROVIDER, |
| 3799 |
errors.ECODE_INVAL) |
| 3800 |
else:
|
| 3801 |
for mod in self.diskmod: |
| 3802 |
ext_provider = mod[2].get(constants.IDISK_PROVIDER, None) |
| 3803 |
if ext_provider is not None: |
| 3804 |
raise errors.OpPrereqError("Parameter '%s' is only valid for" |
| 3805 |
" instances of type '%s'" %
|
| 3806 |
(constants.IDISK_PROVIDER, |
| 3807 |
constants.DT_EXT), |
| 3808 |
errors.ECODE_INVAL) |
| 3809 |
|
| 3810 |
# OS change
|
| 3811 |
if self.op.os_name and not self.op.force: |
| 3812 |
_CheckNodeHasOS(self, instance.primary_node, self.op.os_name, |
| 3813 |
self.op.force_variant)
|
| 3814 |
instance_os = self.op.os_name
|
| 3815 |
else:
|
| 3816 |
instance_os = instance.os |
| 3817 |
|
| 3818 |
assert not (self.op.disk_template and self.op.disks), \ |
| 3819 |
"Can't modify disk template and apply disk changes at the same time"
|
| 3820 |
|
| 3821 |
if self.op.disk_template: |
| 3822 |
self._PreCheckDiskTemplate(pnode_info)
|
| 3823 |
|
| 3824 |
# hvparams processing
|
| 3825 |
if self.op.hvparams: |
| 3826 |
hv_type = instance.hypervisor |
| 3827 |
i_hvdict = _GetUpdatedParams(instance.hvparams, self.op.hvparams)
|
| 3828 |
utils.ForceDictType(i_hvdict, constants.HVS_PARAMETER_TYPES) |
| 3829 |
hv_new = cluster.SimpleFillHV(hv_type, instance.os, i_hvdict) |
| 3830 |
|
| 3831 |
# local check
|
| 3832 |
hypervisor.GetHypervisorClass(hv_type).CheckParameterSyntax(hv_new) |
| 3833 |
_CheckHVParams(self, nodelist, instance.hypervisor, hv_new)
|
| 3834 |
self.hv_proposed = self.hv_new = hv_new # the new actual values |
| 3835 |
self.hv_inst = i_hvdict # the new dict (without defaults) |
| 3836 |
else:
|
| 3837 |
self.hv_proposed = cluster.SimpleFillHV(instance.hypervisor, instance.os,
|
| 3838 |
instance.hvparams) |
| 3839 |
self.hv_new = self.hv_inst = {} |
| 3840 |
|
| 3841 |
# beparams processing
|
| 3842 |
if self.op.beparams: |
| 3843 |
i_bedict = _GetUpdatedParams(instance.beparams, self.op.beparams,
|
| 3844 |
use_none=True)
|
| 3845 |
objects.UpgradeBeParams(i_bedict) |
| 3846 |
utils.ForceDictType(i_bedict, constants.BES_PARAMETER_TYPES) |
| 3847 |
be_new = cluster.SimpleFillBE(i_bedict) |
| 3848 |
self.be_proposed = self.be_new = be_new # the new actual values |
| 3849 |
self.be_inst = i_bedict # the new dict (without defaults) |
| 3850 |
else:
|
| 3851 |
self.be_new = self.be_inst = {} |
| 3852 |
self.be_proposed = cluster.SimpleFillBE(instance.beparams)
|
| 3853 |
be_old = cluster.FillBE(instance) |
| 3854 |
|
| 3855 |
# CPU param validation -- checking every time a parameter is
|
| 3856 |
# changed to cover all cases where either CPU mask or vcpus have
|
| 3857 |
# changed
|
| 3858 |
if (constants.BE_VCPUS in self.be_proposed and |
| 3859 |
constants.HV_CPU_MASK in self.hv_proposed): |
| 3860 |
cpu_list = \ |
| 3861 |
utils.ParseMultiCpuMask(self.hv_proposed[constants.HV_CPU_MASK])
|
| 3862 |
# Verify mask is consistent with number of vCPUs. Can skip this
|
| 3863 |
# test if only 1 entry in the CPU mask, which means same mask
|
| 3864 |
# is applied to all vCPUs.
|
| 3865 |
if (len(cpu_list) > 1 and |
| 3866 |
len(cpu_list) != self.be_proposed[constants.BE_VCPUS]): |
| 3867 |
raise errors.OpPrereqError("Number of vCPUs [%d] does not match the" |
| 3868 |
" CPU mask [%s]" %
|
| 3869 |
(self.be_proposed[constants.BE_VCPUS],
|
| 3870 |
self.hv_proposed[constants.HV_CPU_MASK]),
|
| 3871 |
errors.ECODE_INVAL) |
| 3872 |
|
| 3873 |
# Only perform this test if a new CPU mask is given
|
| 3874 |
if constants.HV_CPU_MASK in self.hv_new: |
| 3875 |
# Calculate the largest CPU number requested
|
| 3876 |
max_requested_cpu = max(map(max, cpu_list)) |
| 3877 |
# Check that all of the instance's nodes have enough physical CPUs to
|
| 3878 |
# satisfy the requested CPU mask
|
| 3879 |
_CheckNodesPhysicalCPUs(self, instance.all_nodes,
|
| 3880 |
max_requested_cpu + 1, instance.hypervisor)
|
| 3881 |
|
| 3882 |
# osparams processing
|
| 3883 |
if self.op.osparams: |
| 3884 |
i_osdict = _GetUpdatedParams(instance.osparams, self.op.osparams)
|
| 3885 |
_CheckOSParams(self, True, nodelist, instance_os, i_osdict) |
| 3886 |
self.os_inst = i_osdict # the new dict (without defaults) |
| 3887 |
else:
|
| 3888 |
self.os_inst = {}
|
| 3889 |
|
| 3890 |
#TODO(dynmem): do the appropriate check involving MINMEM
|
| 3891 |
if (constants.BE_MAXMEM in self.op.beparams and not self.op.force and |
| 3892 |
be_new[constants.BE_MAXMEM] > be_old[constants.BE_MAXMEM]): |
| 3893 |
mem_check_list = [pnode] |
| 3894 |
if be_new[constants.BE_AUTO_BALANCE]:
|
| 3895 |
# either we changed auto_balance to yes or it was from before
|
| 3896 |
mem_check_list.extend(instance.secondary_nodes) |
| 3897 |
instance_info = self.rpc.call_instance_info(pnode, instance.name,
|
| 3898 |
instance.hypervisor) |
| 3899 |
nodeinfo = self.rpc.call_node_info(mem_check_list, None, |
| 3900 |
[instance.hypervisor], False)
|
| 3901 |
pninfo = nodeinfo[pnode] |
| 3902 |
msg = pninfo.fail_msg |
| 3903 |
if msg:
|
| 3904 |
# Assume the primary node is unreachable and go ahead
|
| 3905 |
self.warn.append("Can't get info from primary node %s: %s" % |
| 3906 |
(pnode, msg)) |
| 3907 |
else:
|
| 3908 |
(_, _, (pnhvinfo, )) = pninfo.payload |
| 3909 |
if not isinstance(pnhvinfo.get("memory_free", None), int): |
| 3910 |
self.warn.append("Node data from primary node %s doesn't contain" |
| 3911 |
" free memory information" % pnode)
|
| 3912 |
elif instance_info.fail_msg:
|
| 3913 |
self.warn.append("Can't get instance runtime information: %s" % |
| 3914 |
instance_info.fail_msg) |
| 3915 |
else:
|
| 3916 |
if instance_info.payload:
|
| 3917 |
current_mem = int(instance_info.payload["memory"]) |
| 3918 |
else:
|
| 3919 |
# Assume instance not running
|
| 3920 |
# (there is a slight race condition here, but it's not very
|
| 3921 |
# probable, and we have no other way to check)
|
| 3922 |
# TODO: Describe race condition
|
| 3923 |
current_mem = 0
|
| 3924 |
#TODO(dynmem): do the appropriate check involving MINMEM
|
| 3925 |
miss_mem = (be_new[constants.BE_MAXMEM] - current_mem - |
| 3926 |
pnhvinfo["memory_free"])
|
| 3927 |
if miss_mem > 0: |
| 3928 |
raise errors.OpPrereqError("This change will prevent the instance" |
| 3929 |
" from starting, due to %d MB of memory"
|
| 3930 |
" missing on its primary node" %
|
| 3931 |
miss_mem, errors.ECODE_NORES) |
| 3932 |
|
| 3933 |
if be_new[constants.BE_AUTO_BALANCE]:
|
| 3934 |
for node, nres in nodeinfo.items(): |
| 3935 |
if node not in instance.secondary_nodes: |
| 3936 |
continue
|
| 3937 |
nres.Raise("Can't get info from secondary node %s" % node,
|
| 3938 |
prereq=True, ecode=errors.ECODE_STATE)
|
| 3939 |
(_, _, (nhvinfo, )) = nres.payload |
| 3940 |
if not isinstance(nhvinfo.get("memory_free", None), int): |
| 3941 |
raise errors.OpPrereqError("Secondary node %s didn't return free" |
| 3942 |
" memory information" % node,
|
| 3943 |
errors.ECODE_STATE) |
| 3944 |
#TODO(dynmem): do the appropriate check involving MINMEM
|
| 3945 |
elif be_new[constants.BE_MAXMEM] > nhvinfo["memory_free"]: |
| 3946 |
raise errors.OpPrereqError("This change will prevent the instance" |
| 3947 |
" from failover to its secondary node"
|
| 3948 |
" %s, due to not enough memory" % node,
|
| 3949 |
errors.ECODE_STATE) |
| 3950 |
|
| 3951 |
if self.op.runtime_mem: |
| 3952 |
remote_info = self.rpc.call_instance_info(instance.primary_node,
|
| 3953 |
instance.name, |
| 3954 |
instance.hypervisor) |
| 3955 |
remote_info.Raise("Error checking node %s" % instance.primary_node)
|
| 3956 |
if not remote_info.payload: # not running already |
| 3957 |
raise errors.OpPrereqError("Instance %s is not running" % |
| 3958 |
instance.name, errors.ECODE_STATE) |
| 3959 |
|
| 3960 |
current_memory = remote_info.payload["memory"]
|
| 3961 |
if (not self.op.force and |
| 3962 |
(self.op.runtime_mem > self.be_proposed[constants.BE_MAXMEM] or |
| 3963 |
self.op.runtime_mem < self.be_proposed[constants.BE_MINMEM])): |
| 3964 |
raise errors.OpPrereqError("Instance %s must have memory between %d" |
| 3965 |
" and %d MB of memory unless --force is"
|
| 3966 |
" given" %
|
| 3967 |
(instance.name, |
| 3968 |
self.be_proposed[constants.BE_MINMEM],
|
| 3969 |
self.be_proposed[constants.BE_MAXMEM]),
|
| 3970 |
errors.ECODE_INVAL) |
| 3971 |
|
| 3972 |
delta = self.op.runtime_mem - current_memory
|
| 3973 |
if delta > 0: |
| 3974 |
_CheckNodeFreeMemory(self, instance.primary_node,
|
| 3975 |
"ballooning memory for instance %s" %
|
| 3976 |
instance.name, delta, instance.hypervisor) |
| 3977 |
|
| 3978 |
if self.op.disks and instance.disk_template == constants.DT_DISKLESS: |
| 3979 |
raise errors.OpPrereqError("Disk operations not supported for" |
| 3980 |
" diskless instances", errors.ECODE_INVAL)
|
| 3981 |
|
| 3982 |
def _PrepareNicCreate(_, params, private): |
| 3983 |
self._PrepareNicModification(params, private, None, None, |
| 3984 |
{}, cluster, pnode)
|
| 3985 |
return (None, None) |
| 3986 |
|
| 3987 |
def _PrepareNicMod(_, nic, params, private): |
| 3988 |
self._PrepareNicModification(params, private, nic.ip, nic.network,
|
| 3989 |
nic.nicparams, cluster, pnode) |
| 3990 |
return None |
| 3991 |
|
| 3992 |
def _PrepareNicRemove(_, params, __): |
| 3993 |
ip = params.ip |
| 3994 |
net = params.network |
| 3995 |
if net is not None and ip is not None: |
| 3996 |
self.cfg.ReleaseIp(net, ip, self.proc.GetECId()) |
| 3997 |
|
| 3998 |
# Verify NIC changes (operating on copy)
|
| 3999 |
nics = instance.nics[:] |
| 4000 |
ApplyContainerMods("NIC", nics, None, self.nicmod, |
| 4001 |
_PrepareNicCreate, _PrepareNicMod, _PrepareNicRemove) |
| 4002 |
if len(nics) > constants.MAX_NICS: |
| 4003 |
raise errors.OpPrereqError("Instance has too many network interfaces" |
| 4004 |
" (%d), cannot add more" % constants.MAX_NICS,
|
| 4005 |
errors.ECODE_STATE) |
| 4006 |
|
| 4007 |
def _PrepareDiskMod(_, disk, params, __): |
| 4008 |
disk.name = params.get(constants.IDISK_NAME, None)
|
| 4009 |
|
| 4010 |
# Verify disk changes (operating on a copy)
|
| 4011 |
disks = copy.deepcopy(instance.disks) |
| 4012 |
ApplyContainerMods("disk", disks, None, self.diskmod, None, _PrepareDiskMod, |
| 4013 |
None)
|
| 4014 |
utils.ValidateDeviceNames("disk", disks)
|
| 4015 |
if len(disks) > constants.MAX_DISKS: |
| 4016 |
raise errors.OpPrereqError("Instance has too many disks (%d), cannot add" |
| 4017 |
" more" % constants.MAX_DISKS,
|
| 4018 |
errors.ECODE_STATE) |
| 4019 |
disk_sizes = [disk.size for disk in instance.disks] |
| 4020 |
disk_sizes.extend(params["size"] for (op, idx, params, private) in |
| 4021 |
self.diskmod if op == constants.DDM_ADD) |
| 4022 |
ispec[constants.ISPEC_DISK_COUNT] = len(disk_sizes)
|
| 4023 |
ispec[constants.ISPEC_DISK_SIZE] = disk_sizes |
| 4024 |
|
| 4025 |
if self.op.offline is not None and self.op.offline: |
| 4026 |
_CheckInstanceState(self, instance, CAN_CHANGE_INSTANCE_OFFLINE,
|
| 4027 |
msg="can't change to offline")
|
| 4028 |
|
| 4029 |
# Pre-compute NIC changes (necessary to use result in hooks)
|
| 4030 |
self._nic_chgdesc = []
|
| 4031 |
if self.nicmod: |
| 4032 |
# Operate on copies as this is still in prereq
|
| 4033 |
nics = [nic.Copy() for nic in instance.nics] |
| 4034 |
ApplyContainerMods("NIC", nics, self._nic_chgdesc, self.nicmod, |
| 4035 |
self._CreateNewNic, self._ApplyNicMods, None) |
| 4036 |
# Verify that NIC names are unique and valid
|
| 4037 |
utils.ValidateDeviceNames("NIC", nics)
|
| 4038 |
self._new_nics = nics
|
| 4039 |
ispec[constants.ISPEC_NIC_COUNT] = len(self._new_nics) |
| 4040 |
else:
|
| 4041 |
self._new_nics = None |
| 4042 |
ispec[constants.ISPEC_NIC_COUNT] = len(instance.nics)
|
| 4043 |
|
| 4044 |
if not self.op.ignore_ipolicy: |
| 4045 |
ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster, |
| 4046 |
group_info) |
| 4047 |
|
| 4048 |
# Fill ispec with backend parameters
|
| 4049 |
ispec[constants.ISPEC_SPINDLE_USE] = \ |
| 4050 |
self.be_new.get(constants.BE_SPINDLE_USE, None) |
| 4051 |
ispec[constants.ISPEC_CPU_COUNT] = self.be_new.get(constants.BE_VCPUS,
|
| 4052 |
None)
|
| 4053 |
|
| 4054 |
# Copy ispec to verify parameters with min/max values separately
|
| 4055 |
if self.op.disk_template: |
| 4056 |
new_disk_template = self.op.disk_template
|
| 4057 |
else:
|
| 4058 |
new_disk_template = instance.disk_template |
| 4059 |
ispec_max = ispec.copy() |
| 4060 |
ispec_max[constants.ISPEC_MEM_SIZE] = \ |
| 4061 |
self.be_new.get(constants.BE_MAXMEM, None) |
| 4062 |
res_max = _ComputeIPolicyInstanceSpecViolation(ipolicy, ispec_max, |
| 4063 |
new_disk_template) |
| 4064 |
ispec_min = ispec.copy() |
| 4065 |
ispec_min[constants.ISPEC_MEM_SIZE] = \ |
| 4066 |
self.be_new.get(constants.BE_MINMEM, None) |
| 4067 |
res_min = _ComputeIPolicyInstanceSpecViolation(ipolicy, ispec_min, |
| 4068 |
new_disk_template) |
| 4069 |
|
| 4070 |
if (res_max or res_min): |
| 4071 |
# FIXME: Improve error message by including information about whether
|
| 4072 |
# the upper or lower limit of the parameter fails the ipolicy.
|
| 4073 |
msg = ("Instance allocation to group %s (%s) violates policy: %s" %
|
| 4074 |
(group_info, group_info.name, |
| 4075 |
utils.CommaJoin(set(res_max + res_min))))
|
| 4076 |
raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
|
| 4077 |
|
| 4078 |
def _ConvertPlainToDrbd(self, feedback_fn): |
| 4079 |
"""Converts an instance from plain to drbd.
|
| 4080 |
|
| 4081 |
"""
|
| 4082 |
feedback_fn("Converting template to drbd")
|
| 4083 |
instance = self.instance
|
| 4084 |
pnode = instance.primary_node |
| 4085 |
snode = self.op.remote_node
|
| 4086 |
|
| 4087 |
assert instance.disk_template == constants.DT_PLAIN
|
| 4088 |
|
| 4089 |
# create a fake disk info for _GenerateDiskTemplate
|
| 4090 |
disk_info = [{constants.IDISK_SIZE: d.size, constants.IDISK_MODE: d.mode,
|
| 4091 |
constants.IDISK_VG: d.logical_id[0],
|
| 4092 |
constants.IDISK_NAME: d.name} |
| 4093 |
for d in instance.disks] |
| 4094 |
new_disks = _GenerateDiskTemplate(self, self.op.disk_template, |
| 4095 |
instance.name, pnode, [snode], |
| 4096 |
disk_info, None, None, 0, feedback_fn, |
| 4097 |
self.diskparams)
|
| 4098 |
anno_disks = rpc.AnnotateDiskParams(constants.DT_DRBD8, new_disks, |
| 4099 |
self.diskparams)
|
| 4100 |
p_excl_stor = _IsExclusiveStorageEnabledNodeName(self.cfg, pnode)
|
| 4101 |
s_excl_stor = _IsExclusiveStorageEnabledNodeName(self.cfg, snode)
|
| 4102 |
info = _GetInstanceInfoText(instance) |
| 4103 |
feedback_fn("Creating additional volumes...")
|
| 4104 |
# first, create the missing data and meta devices
|
| 4105 |
for disk in anno_disks: |
| 4106 |
# unfortunately this is... not too nice
|
| 4107 |
_CreateSingleBlockDev(self, pnode, instance, disk.children[1], |
| 4108 |
info, True, p_excl_stor)
|
| 4109 |
for child in disk.children: |
| 4110 |
_CreateSingleBlockDev(self, snode, instance, child, info, True, |
| 4111 |
s_excl_stor) |
| 4112 |
# at this stage, all new LVs have been created, we can rename the
|
| 4113 |
# old ones
|
| 4114 |
feedback_fn("Renaming original volumes...")
|
| 4115 |
rename_list = [(o, n.children[0].logical_id)
|
| 4116 |
for (o, n) in zip(instance.disks, new_disks)] |
| 4117 |
result = self.rpc.call_blockdev_rename(pnode, rename_list)
|
| 4118 |
result.Raise("Failed to rename original LVs")
|
| 4119 |
|
| 4120 |
feedback_fn("Initializing DRBD devices...")
|
| 4121 |
# all child devices are in place, we can now create the DRBD devices
|
| 4122 |
try:
|
| 4123 |
for disk in anno_disks: |
| 4124 |
for (node, excl_stor) in [(pnode, p_excl_stor), (snode, s_excl_stor)]: |
| 4125 |
f_create = node == pnode |
| 4126 |
_CreateSingleBlockDev(self, node, instance, disk, info, f_create,
|
| 4127 |
excl_stor) |
| 4128 |
except errors.GenericError, e:
|
| 4129 |
feedback_fn("Initializing of DRBD devices failed;"
|
| 4130 |
" renaming back original volumes...")
|
| 4131 |
for disk in new_disks: |
| 4132 |
self.cfg.SetDiskID(disk, pnode)
|
| 4133 |
rename_back_list = [(n.children[0], o.logical_id)
|
| 4134 |
for (n, o) in zip(new_disks, instance.disks)] |
| 4135 |
result = self.rpc.call_blockdev_rename(pnode, rename_back_list)
|
| 4136 |
result.Raise("Failed to rename LVs back after error %s" % str(e)) |
| 4137 |
raise
|
| 4138 |
|
| 4139 |
# at this point, the instance has been modified
|
| 4140 |
instance.disk_template = constants.DT_DRBD8 |
| 4141 |
instance.disks = new_disks |
| 4142 |
self.cfg.Update(instance, feedback_fn)
|
| 4143 |
|
| 4144 |
# Release node locks while waiting for sync
|
| 4145 |
_ReleaseLocks(self, locking.LEVEL_NODE)
|
| 4146 |
|
| 4147 |
# disks are created, waiting for sync
|
| 4148 |
disk_abort = not _WaitForSync(self, instance, |
| 4149 |
oneshot=not self.op.wait_for_sync) |
| 4150 |
if disk_abort:
|
| 4151 |
raise errors.OpExecError("There are some degraded disks for" |
| 4152 |
" this instance, please cleanup manually")
|
| 4153 |
|
| 4154 |
# Node resource locks will be released by caller
|
| 4155 |
|
| 4156 |
def _ConvertDrbdToPlain(self, feedback_fn): |
| 4157 |
"""Converts an instance from drbd to plain.
|
| 4158 |
|
| 4159 |
"""
|
| 4160 |
instance = self.instance
|
| 4161 |
|
| 4162 |
assert len(instance.secondary_nodes) == 1 |
| 4163 |
assert instance.disk_template == constants.DT_DRBD8
|
| 4164 |
|
| 4165 |
pnode = instance.primary_node |
| 4166 |
snode = instance.secondary_nodes[0]
|
| 4167 |
feedback_fn("Converting template to plain")
|
| 4168 |
|
| 4169 |
old_disks = _AnnotateDiskParams(instance, instance.disks, self.cfg)
|
| 4170 |
new_disks = [d.children[0] for d in instance.disks] |
| 4171 |
|
| 4172 |
# copy over size, mode and name
|
| 4173 |
for parent, child in zip(old_disks, new_disks): |
| 4174 |
child.size = parent.size |
| 4175 |
child.mode = parent.mode |
| 4176 |
child.name = parent.name |
| 4177 |
|
| 4178 |
# this is a DRBD disk, return its port to the pool
|
| 4179 |
# NOTE: this must be done right before the call to cfg.Update!
|
| 4180 |
for disk in old_disks: |
| 4181 |
tcp_port = disk.logical_id[2]
|
| 4182 |
self.cfg.AddTcpUdpPort(tcp_port)
|
| 4183 |
|
| 4184 |
# update instance structure
|
| 4185 |
instance.disks = new_disks |
| 4186 |
instance.disk_template = constants.DT_PLAIN |
| 4187 |
_UpdateIvNames(0, instance.disks)
|
| 4188 |
self.cfg.Update(instance, feedback_fn)
|
| 4189 |
|
| 4190 |
# Release locks in case removing disks takes a while
|
| 4191 |
_ReleaseLocks(self, locking.LEVEL_NODE)
|
| 4192 |
|
| 4193 |
feedback_fn("Removing volumes on the secondary node...")
|
| 4194 |
for disk in old_disks: |
| 4195 |
self.cfg.SetDiskID(disk, snode)
|
| 4196 |
msg = self.rpc.call_blockdev_remove(snode, disk).fail_msg
|
| 4197 |
if msg:
|
| 4198 |
self.LogWarning("Could not remove block device %s on node %s," |
| 4199 |
" continuing anyway: %s", disk.iv_name, snode, msg)
|
| 4200 |
|
| 4201 |
feedback_fn("Removing unneeded volumes on the primary node...")
|
| 4202 |
for idx, disk in enumerate(old_disks): |
| 4203 |
meta = disk.children[1]
|
| 4204 |
self.cfg.SetDiskID(meta, pnode)
|
| 4205 |
msg = self.rpc.call_blockdev_remove(pnode, meta).fail_msg
|
| 4206 |
if msg:
|
| 4207 |
self.LogWarning("Could not remove metadata for disk %d on node %s," |
| 4208 |
" continuing anyway: %s", idx, pnode, msg)
|
| 4209 |
|
| 4210 |
def _CreateNewDisk(self, idx, params, _): |
| 4211 |
"""Creates a new disk.
|
| 4212 |
|
| 4213 |
"""
|
| 4214 |
instance = self.instance
|
| 4215 |
|
| 4216 |
# add a new disk
|
| 4217 |
if instance.disk_template in constants.DTS_FILEBASED: |
| 4218 |
(file_driver, file_path) = instance.disks[0].logical_id
|
| 4219 |
file_path = os.path.dirname(file_path) |
| 4220 |
else:
|
| 4221 |
file_driver = file_path = None
|
| 4222 |
|
| 4223 |
disk = \ |
| 4224 |
_GenerateDiskTemplate(self, instance.disk_template, instance.name,
|
| 4225 |
instance.primary_node, instance.secondary_nodes, |
| 4226 |
[params], file_path, file_driver, idx, |
| 4227 |
self.Log, self.diskparams)[0] |
| 4228 |
|
| 4229 |
info = _GetInstanceInfoText(instance) |
| 4230 |
|
| 4231 |
logging.info("Creating volume %s for instance %s",
|
| 4232 |
disk.iv_name, instance.name) |
| 4233 |
# Note: this needs to be kept in sync with _CreateDisks
|
| 4234 |
#HARDCODE
|
| 4235 |
for node in instance.all_nodes: |
| 4236 |
f_create = (node == instance.primary_node) |
| 4237 |
try:
|
| 4238 |
_CreateBlockDev(self, node, instance, disk, f_create, info, f_create)
|
| 4239 |
except errors.OpExecError, err:
|
| 4240 |
self.LogWarning("Failed to create volume %s (%s) on node '%s': %s", |
| 4241 |
disk.iv_name, disk, node, err) |
| 4242 |
|
| 4243 |
if self.cluster.prealloc_wipe_disks: |
| 4244 |
# Wipe new disk
|
| 4245 |
_WipeDisks(self, instance,
|
| 4246 |
disks=[(idx, disk, 0)])
|
| 4247 |
|
| 4248 |
return (disk, [
|
| 4249 |
("disk/%d" % idx, "add:size=%s,mode=%s" % (disk.size, disk.mode)), |
| 4250 |
]) |
| 4251 |
|
| 4252 |
@staticmethod
|
| 4253 |
def _ModifyDisk(idx, disk, params, _): |
| 4254 |
"""Modifies a disk.
|
| 4255 |
|
| 4256 |
"""
|
| 4257 |
changes = [] |
| 4258 |
mode = params.get(constants.IDISK_MODE, None)
|
| 4259 |
if mode:
|
| 4260 |
disk.mode = mode |
| 4261 |
changes.append(("disk.mode/%d" % idx, disk.mode))
|
| 4262 |
|
| 4263 |
name = params.get(constants.IDISK_NAME, None)
|
| 4264 |
disk.name = name |
| 4265 |
changes.append(("disk.name/%d" % idx, disk.name))
|
| 4266 |
|
| 4267 |
return changes
|
| 4268 |
|
| 4269 |
def _RemoveDisk(self, idx, root, _): |
| 4270 |
"""Removes a disk.
|
| 4271 |
|
| 4272 |
"""
|
| 4273 |
(anno_disk,) = _AnnotateDiskParams(self.instance, [root], self.cfg) |
| 4274 |
for node, disk in anno_disk.ComputeNodeTree(self.instance.primary_node): |
| 4275 |
self.cfg.SetDiskID(disk, node)
|
| 4276 |
msg = self.rpc.call_blockdev_remove(node, disk).fail_msg
|
| 4277 |
if msg:
|
| 4278 |
self.LogWarning("Could not remove disk/%d on node '%s': %s," |
| 4279 |
" continuing anyway", idx, node, msg)
|
| 4280 |
|
| 4281 |
# if this is a DRBD disk, return its port to the pool
|
| 4282 |
if root.dev_type in constants.LDS_DRBD: |
| 4283 |
self.cfg.AddTcpUdpPort(root.logical_id[2]) |
| 4284 |
|
| 4285 |
def _CreateNewNic(self, idx, params, private): |
| 4286 |
"""Creates data structure for a new network interface.
|
| 4287 |
|
| 4288 |
"""
|
| 4289 |
mac = params[constants.INIC_MAC] |
| 4290 |
ip = params.get(constants.INIC_IP, None)
|
| 4291 |
net = params.get(constants.INIC_NETWORK, None)
|
| 4292 |
name = params.get(constants.INIC_NAME, None)
|
| 4293 |
net_uuid = self.cfg.LookupNetwork(net)
|
| 4294 |
#TODO: not private.filled?? can a nic have no nicparams??
|
| 4295 |
nicparams = private.filled |
| 4296 |
nobj = objects.NIC(mac=mac, ip=ip, network=net_uuid, name=name, |
| 4297 |
nicparams=nicparams) |
| 4298 |
nobj.uuid = self.cfg.GenerateUniqueID(self.proc.GetECId()) |
| 4299 |
|
| 4300 |
return (nobj, [
|
| 4301 |
("nic.%d" % idx,
|
| 4302 |
"add:mac=%s,ip=%s,mode=%s,link=%s,network=%s" %
|
| 4303 |
(mac, ip, private.filled[constants.NIC_MODE], |
| 4304 |
private.filled[constants.NIC_LINK], |
| 4305 |
net)), |
| 4306 |
]) |
| 4307 |
|
| 4308 |
def _ApplyNicMods(self, idx, nic, params, private): |
| 4309 |
"""Modifies a network interface.
|
| 4310 |
|
| 4311 |
"""
|
| 4312 |
changes = [] |
| 4313 |
|
| 4314 |
for key in [constants.INIC_MAC, constants.INIC_IP, constants.INIC_NAME]: |
| 4315 |
if key in params: |
| 4316 |
changes.append(("nic.%s/%d" % (key, idx), params[key]))
|
| 4317 |
setattr(nic, key, params[key])
|
| 4318 |
|
| 4319 |
new_net = params.get(constants.INIC_NETWORK, nic.network) |
| 4320 |
new_net_uuid = self.cfg.LookupNetwork(new_net)
|
| 4321 |
if new_net_uuid != nic.network:
|
| 4322 |
changes.append(("nic.network/%d" % idx, new_net))
|
| 4323 |
nic.network = new_net_uuid |
| 4324 |
|
| 4325 |
if private.filled:
|
| 4326 |
nic.nicparams = private.filled |
| 4327 |
|
| 4328 |
for (key, val) in nic.nicparams.items(): |
| 4329 |
changes.append(("nic.%s/%d" % (key, idx), val))
|
| 4330 |
|
| 4331 |
return changes
|
| 4332 |
|
| 4333 |
def Exec(self, feedback_fn): |
| 4334 |
"""Modifies an instance.
|
| 4335 |
|
| 4336 |
All parameters take effect only at the next restart of the instance.
|
| 4337 |
|
| 4338 |
"""
|
| 4339 |
# Process here the warnings from CheckPrereq, as we don't have a
|
| 4340 |
# feedback_fn there.
|
| 4341 |
# TODO: Replace with self.LogWarning
|
| 4342 |
for warn in self.warn: |
| 4343 |
feedback_fn("WARNING: %s" % warn)
|
| 4344 |
|
| 4345 |
assert ((self.op.disk_template is None) ^ |
| 4346 |
bool(self.owned_locks(locking.LEVEL_NODE_RES))), \ |
| 4347 |
"Not owning any node resource locks"
|
| 4348 |
|
| 4349 |
result = [] |
| 4350 |
instance = self.instance
|
| 4351 |
|
| 4352 |
# New primary node
|
| 4353 |
if self.op.pnode: |
| 4354 |
instance.primary_node = self.op.pnode
|
| 4355 |
|
| 4356 |
# runtime memory
|
| 4357 |
if self.op.runtime_mem: |
| 4358 |
rpcres = self.rpc.call_instance_balloon_memory(instance.primary_node,
|
| 4359 |
instance, |
| 4360 |
self.op.runtime_mem)
|
| 4361 |
rpcres.Raise("Cannot modify instance runtime memory")
|
| 4362 |
result.append(("runtime_memory", self.op.runtime_mem)) |
| 4363 |
|
| 4364 |
# Apply disk changes
|
| 4365 |
ApplyContainerMods("disk", instance.disks, result, self.diskmod, |
| 4366 |
self._CreateNewDisk, self._ModifyDisk, self._RemoveDisk) |
| 4367 |
_UpdateIvNames(0, instance.disks)
|
| 4368 |
|
| 4369 |
if self.op.disk_template: |
| 4370 |
if __debug__:
|
| 4371 |
check_nodes = set(instance.all_nodes)
|
| 4372 |
if self.op.remote_node: |
| 4373 |
check_nodes.add(self.op.remote_node)
|
| 4374 |
for level in [locking.LEVEL_NODE, locking.LEVEL_NODE_RES]: |
| 4375 |
owned = self.owned_locks(level)
|
| 4376 |
assert not (check_nodes - owned), \ |
| 4377 |
("Not owning the correct locks, owning %r, expected at least %r" %
|
| 4378 |
(owned, check_nodes)) |
| 4379 |
|
| 4380 |
r_shut = _ShutdownInstanceDisks(self, instance)
|
| 4381 |
if not r_shut: |
| 4382 |
raise errors.OpExecError("Cannot shutdown instance disks, unable to" |
| 4383 |
" proceed with disk template conversion")
|
| 4384 |
mode = (instance.disk_template, self.op.disk_template)
|
| 4385 |
try:
|
| 4386 |
self._DISK_CONVERSIONS[mode](self, feedback_fn) |
| 4387 |
except:
|
| 4388 |
self.cfg.ReleaseDRBDMinors(instance.name)
|
| 4389 |
raise
|
| 4390 |
result.append(("disk_template", self.op.disk_template)) |
| 4391 |
|
| 4392 |
assert instance.disk_template == self.op.disk_template, \ |
| 4393 |
("Expected disk template '%s', found '%s'" %
|
| 4394 |
(self.op.disk_template, instance.disk_template))
|
| 4395 |
|
| 4396 |
# Release node and resource locks if there are any (they might already have
|
| 4397 |
# been released during disk conversion)
|
| 4398 |
_ReleaseLocks(self, locking.LEVEL_NODE)
|
| 4399 |
_ReleaseLocks(self, locking.LEVEL_NODE_RES)
|
| 4400 |
|
| 4401 |
# Apply NIC changes
|
| 4402 |
if self._new_nics is not None: |
| 4403 |
instance.nics = self._new_nics
|
| 4404 |
result.extend(self._nic_chgdesc)
|
| 4405 |
|
| 4406 |
# hvparams changes
|
| 4407 |
if self.op.hvparams: |
| 4408 |
instance.hvparams = self.hv_inst
|
| 4409 |
for key, val in self.op.hvparams.iteritems(): |
| 4410 |
result.append(("hv/%s" % key, val))
|
| 4411 |
|
| 4412 |
# beparams changes
|
| 4413 |
if self.op.beparams: |
| 4414 |
instance.beparams = self.be_inst
|
| 4415 |
for key, val in self.op.beparams.iteritems(): |
| 4416 |
result.append(("be/%s" % key, val))
|
| 4417 |
|
| 4418 |
# OS change
|
| 4419 |
if self.op.os_name: |
| 4420 |
instance.os = self.op.os_name
|
| 4421 |
|
| 4422 |
# osparams changes
|
| 4423 |
if self.op.osparams: |
| 4424 |
instance.osparams = self.os_inst
|
| 4425 |
for key, val in self.op.osparams.iteritems(): |
| 4426 |
result.append(("os/%s" % key, val))
|
| 4427 |
|
| 4428 |
if self.op.offline is None: |
| 4429 |
# Ignore
|
| 4430 |
pass
|
| 4431 |
elif self.op.offline: |
| 4432 |
# Mark instance as offline
|
| 4433 |
self.cfg.MarkInstanceOffline(instance.name)
|
| 4434 |
result.append(("admin_state", constants.ADMINST_OFFLINE))
|
| 4435 |
else:
|
| 4436 |
# Mark instance as online, but stopped
|
| 4437 |
self.cfg.MarkInstanceDown(instance.name)
|
| 4438 |
result.append(("admin_state", constants.ADMINST_DOWN))
|
| 4439 |
|
| 4440 |
self.cfg.Update(instance, feedback_fn, self.proc.GetECId()) |
| 4441 |
|
| 4442 |
assert not (self.owned_locks(locking.LEVEL_NODE_RES) or |
| 4443 |
self.owned_locks(locking.LEVEL_NODE)), \
|
| 4444 |
"All node locks should have been released by now"
|
| 4445 |
|
| 4446 |
return result
|
| 4447 |
|
| 4448 |
_DISK_CONVERSIONS = {
|
| 4449 |
(constants.DT_PLAIN, constants.DT_DRBD8): _ConvertPlainToDrbd, |
| 4450 |
(constants.DT_DRBD8, constants.DT_PLAIN): _ConvertDrbdToPlain, |
| 4451 |
} |
| 4452 |
|
| 4453 |
|
| 4454 |
class LUInstanceChangeGroup(LogicalUnit): |
| 4455 |
HPATH = "instance-change-group"
|
| 4456 |
HTYPE = constants.HTYPE_INSTANCE |
| 4457 |
REQ_BGL = False
|
| 4458 |
|
| 4459 |
def ExpandNames(self): |
| 4460 |
self.share_locks = _ShareAll()
|
| 4461 |
|
| 4462 |
self.needed_locks = {
|
| 4463 |
locking.LEVEL_NODEGROUP: [], |
| 4464 |
locking.LEVEL_NODE: [], |
| 4465 |
locking.LEVEL_NODE_ALLOC: locking.ALL_SET, |
| 4466 |
} |
| 4467 |
|
| 4468 |
self._ExpandAndLockInstance()
|
| 4469 |
|
| 4470 |
if self.op.target_groups: |
| 4471 |
self.req_target_uuids = map(self.cfg.LookupNodeGroup, |
| 4472 |
self.op.target_groups)
|
| 4473 |
else:
|
| 4474 |
self.req_target_uuids = None |
| 4475 |
|
| 4476 |
self.op.iallocator = _GetDefaultIAllocator(self.cfg, self.op.iallocator) |
| 4477 |
|
| 4478 |
def DeclareLocks(self, level): |
| 4479 |
if level == locking.LEVEL_NODEGROUP:
|
| 4480 |
assert not self.needed_locks[locking.LEVEL_NODEGROUP] |
| 4481 |
|
| 4482 |
if self.req_target_uuids: |
| 4483 |
lock_groups = set(self.req_target_uuids) |
| 4484 |
|
| 4485 |
# Lock all groups used by instance optimistically; this requires going
|
| 4486 |
# via the node before it's locked, requiring verification later on
|
| 4487 |
instance_groups = self.cfg.GetInstanceNodeGroups(self.op.instance_name) |
| 4488 |
lock_groups.update(instance_groups) |
| 4489 |
else:
|
| 4490 |
# No target groups, need to lock all of them
|
| 4491 |
lock_groups = locking.ALL_SET |
| 4492 |
|
| 4493 |
self.needed_locks[locking.LEVEL_NODEGROUP] = lock_groups
|
| 4494 |
|
| 4495 |
elif level == locking.LEVEL_NODE:
|
| 4496 |
if self.req_target_uuids: |
| 4497 |
# Lock all nodes used by instances
|
| 4498 |
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
|
| 4499 |
self._LockInstancesNodes()
|
| 4500 |
|
| 4501 |
# Lock all nodes in all potential target groups
|
| 4502 |
lock_groups = (frozenset(self.owned_locks(locking.LEVEL_NODEGROUP)) - |
| 4503 |
self.cfg.GetInstanceNodeGroups(self.op.instance_name)) |
| 4504 |
member_nodes = [node_name |
| 4505 |
for group in lock_groups |
| 4506 |
for node_name in self.cfg.GetNodeGroup(group).members] |
| 4507 |
self.needed_locks[locking.LEVEL_NODE].extend(member_nodes)
|
| 4508 |
else:
|
| 4509 |
# Lock all nodes as all groups are potential targets
|
| 4510 |
self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
|
| 4511 |
|
| 4512 |
def CheckPrereq(self): |
| 4513 |
owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE)) |
| 4514 |
owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP)) |
| 4515 |
owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE)) |
| 4516 |
|
| 4517 |
assert (self.req_target_uuids is None or |
| 4518 |
owned_groups.issuperset(self.req_target_uuids))
|
| 4519 |
assert owned_instances == set([self.op.instance_name]) |
| 4520 |
|
| 4521 |
# Get instance information
|
| 4522 |
self.instance = self.cfg.GetInstanceInfo(self.op.instance_name) |
| 4523 |
|
| 4524 |
# Check if node groups for locked instance are still correct
|
| 4525 |
assert owned_nodes.issuperset(self.instance.all_nodes), \ |
| 4526 |
("Instance %s's nodes changed while we kept the lock" %
|
| 4527 |
self.op.instance_name)
|
| 4528 |
|
| 4529 |
inst_groups = _CheckInstanceNodeGroups(self.cfg, self.op.instance_name, |
| 4530 |
owned_groups) |
| 4531 |
|
| 4532 |
if self.req_target_uuids: |
| 4533 |
# User requested specific target groups
|
| 4534 |
self.target_uuids = frozenset(self.req_target_uuids) |
| 4535 |
else:
|
| 4536 |
# All groups except those used by the instance are potential targets
|
| 4537 |
self.target_uuids = owned_groups - inst_groups
|
| 4538 |
|
| 4539 |
conflicting_groups = self.target_uuids & inst_groups
|
| 4540 |
if conflicting_groups:
|
| 4541 |
raise errors.OpPrereqError("Can't use group(s) '%s' as targets, they are" |
| 4542 |
" used by the instance '%s'" %
|
| 4543 |
(utils.CommaJoin(conflicting_groups), |
| 4544 |
self.op.instance_name),
|
| 4545 |
errors.ECODE_INVAL) |
| 4546 |
|
| 4547 |
if not self.target_uuids: |
| 4548 |
raise errors.OpPrereqError("There are no possible target groups", |
| 4549 |
errors.ECODE_INVAL) |
| 4550 |
|
| 4551 |
def BuildHooksEnv(self): |
| 4552 |
"""Build hooks env.
|
| 4553 |
|
| 4554 |
"""
|
| 4555 |
assert self.target_uuids |
| 4556 |
|
| 4557 |
env = {
|
| 4558 |
"TARGET_GROUPS": " ".join(self.target_uuids), |
| 4559 |
} |
| 4560 |
|
| 4561 |
env.update(_BuildInstanceHookEnvByObject(self, self.instance)) |
| 4562 |
|
| 4563 |
return env
|
| 4564 |
|
| 4565 |
def BuildHooksNodes(self): |
| 4566 |
"""Build hooks nodes.
|
| 4567 |
|
| 4568 |
"""
|
| 4569 |
mn = self.cfg.GetMasterNode()
|
| 4570 |
return ([mn], [mn])
|
| 4571 |
|
| 4572 |
def Exec(self, feedback_fn): |
| 4573 |
instances = list(self.owned_locks(locking.LEVEL_INSTANCE)) |
| 4574 |
|
| 4575 |
assert instances == [self.op.instance_name], "Instance not locked" |
| 4576 |
|
| 4577 |
req = iallocator.IAReqGroupChange(instances=instances, |
| 4578 |
target_groups=list(self.target_uuids)) |
| 4579 |
ial = iallocator.IAllocator(self.cfg, self.rpc, req) |
| 4580 |
|
| 4581 |
ial.Run(self.op.iallocator)
|
| 4582 |
|
| 4583 |
if not ial.success: |
| 4584 |
raise errors.OpPrereqError("Can't compute solution for changing group of" |
| 4585 |
" instance '%s' using iallocator '%s': %s" %
|
| 4586 |
(self.op.instance_name, self.op.iallocator, |
| 4587 |
ial.info), errors.ECODE_NORES) |
| 4588 |
|
| 4589 |
jobs = _LoadNodeEvacResult(self, ial.result, self.op.early_release, False) |
| 4590 |
|
| 4591 |
self.LogInfo("Iallocator returned %s job(s) for changing group of" |
| 4592 |
" instance '%s'", len(jobs), self.op.instance_name) |
| 4593 |
|
| 4594 |
return ResultWithJobs(jobs)
|
| 4595 |
|
| 4596 |
|
| 4597 |
class TLMigrateInstance(Tasklet): |
| 4598 |
"""Tasklet class for instance migration.
|
| 4599 |
|
| 4600 |
@type live: boolean
|
| 4601 |
@ivar live: whether the migration will be done live or non-live;
|
| 4602 |
this variable is initalized only after CheckPrereq has run
|
| 4603 |
@type cleanup: boolean
|
| 4604 |
@ivar cleanup: Wheater we cleanup from a failed migration
|
| 4605 |
@type iallocator: string
|
| 4606 |
@ivar iallocator: The iallocator used to determine target_node
|
| 4607 |
@type target_node: string
|
| 4608 |
@ivar target_node: If given, the target_node to reallocate the instance to
|
| 4609 |
@type failover: boolean
|
| 4610 |
@ivar failover: Whether operation results in failover or migration
|
| 4611 |
@type fallback: boolean
|
| 4612 |
@ivar fallback: Whether fallback to failover is allowed if migration not
|
| 4613 |
possible
|
| 4614 |
@type ignore_consistency: boolean
|
| 4615 |
@ivar ignore_consistency: Wheter we should ignore consistency between source
|
| 4616 |
and target node
|
| 4617 |
@type shutdown_timeout: int
|
| 4618 |
@ivar shutdown_timeout: In case of failover timeout of the shutdown
|
| 4619 |
@type ignore_ipolicy: bool
|
| 4620 |
@ivar ignore_ipolicy: If true, we can ignore instance policy when migrating
|
| 4621 |
|
| 4622 |
"""
|
| 4623 |
|
| 4624 |
# Constants
|
| 4625 |
_MIGRATION_POLL_INTERVAL = 1 # seconds |
| 4626 |
_MIGRATION_FEEDBACK_INTERVAL = 10 # seconds |
| 4627 |
|
| 4628 |
def __init__(self, lu, instance_name, cleanup, failover, fallback, |
| 4629 |
ignore_consistency, allow_runtime_changes, shutdown_timeout, |
| 4630 |
ignore_ipolicy): |
| 4631 |
"""Initializes this class.
|
| 4632 |
|
| 4633 |
"""
|
| 4634 |
Tasklet.__init__(self, lu)
|
| 4635 |
|
| 4636 |
# Parameters
|
| 4637 |
self.instance_name = instance_name
|
| 4638 |
self.cleanup = cleanup
|
| 4639 |
self.live = False # will be overridden later |
| 4640 |
self.failover = failover
|
| 4641 |
self.fallback = fallback
|
| 4642 |
self.ignore_consistency = ignore_consistency
|
| 4643 |
self.shutdown_timeout = shutdown_timeout
|
| 4644 |
self.ignore_ipolicy = ignore_ipolicy
|
| 4645 |
self.allow_runtime_changes = allow_runtime_changes
|
| 4646 |
|
| 4647 |
def CheckPrereq(self): |
| 4648 |
"""Check prerequisites.
|
| 4649 |
|
| 4650 |
This checks that the instance is in the cluster.
|
| 4651 |
|
| 4652 |
"""
|
| 4653 |
instance_name = _ExpandInstanceName(self.lu.cfg, self.instance_name) |
| 4654 |
instance = self.cfg.GetInstanceInfo(instance_name)
|
| 4655 |
assert instance is not None |
| 4656 |
self.instance = instance
|
| 4657 |
cluster = self.cfg.GetClusterInfo()
|
| 4658 |
|
| 4659 |
if (not self.cleanup and |
| 4660 |
not instance.admin_state == constants.ADMINST_UP and |
| 4661 |
not self.failover and self.fallback): |
| 4662 |
self.lu.LogInfo("Instance is marked down or offline, fallback allowed," |
| 4663 |
" switching to failover")
|
| 4664 |
self.failover = True |
| 4665 |
|
| 4666 |
if instance.disk_template not in constants.DTS_MIRRORED: |
| 4667 |
if self.failover: |
| 4668 |
text = "failovers"
|
| 4669 |
else:
|
| 4670 |
text = "migrations"
|
| 4671 |
raise errors.OpPrereqError("Instance's disk layout '%s' does not allow" |
| 4672 |
" %s" % (instance.disk_template, text),
|
| 4673 |
errors.ECODE_STATE) |
| 4674 |
|
| 4675 |
if instance.disk_template in constants.DTS_EXT_MIRROR: |
| 4676 |
_CheckIAllocatorOrNode(self.lu, "iallocator", "target_node") |
| 4677 |
|
| 4678 |
if self.lu.op.iallocator: |
| 4679 |
assert locking.NAL in self.lu.owned_locks(locking.LEVEL_NODE_ALLOC) |
| 4680 |
self._RunAllocator()
|
| 4681 |
else:
|
| 4682 |
# We set set self.target_node as it is required by
|
| 4683 |
# BuildHooksEnv
|
| 4684 |
self.target_node = self.lu.op.target_node |
| 4685 |
|
| 4686 |
# Check that the target node is correct in terms of instance policy
|
| 4687 |
nodeinfo = self.cfg.GetNodeInfo(self.target_node) |
| 4688 |
group_info = self.cfg.GetNodeGroup(nodeinfo.group)
|
| 4689 |
ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster, |
| 4690 |
group_info) |
| 4691 |
_CheckTargetNodeIPolicy(self.lu, ipolicy, instance, nodeinfo, self.cfg, |
| 4692 |
ignore=self.ignore_ipolicy)
|
| 4693 |
|
| 4694 |
# self.target_node is already populated, either directly or by the
|
| 4695 |
# iallocator run
|
| 4696 |
target_node = self.target_node
|
| 4697 |
if self.target_node == instance.primary_node: |
| 4698 |
raise errors.OpPrereqError("Cannot migrate instance %s" |
| 4699 |
" to its primary (%s)" %
|
| 4700 |
(instance.name, instance.primary_node), |
| 4701 |
errors.ECODE_STATE) |
| 4702 |
|
| 4703 |
if len(self.lu.tasklets) == 1: |
| 4704 |
# It is safe to release locks only when we're the only tasklet
|
| 4705 |
# in the LU
|
| 4706 |
_ReleaseLocks(self.lu, locking.LEVEL_NODE,
|
| 4707 |
keep=[instance.primary_node, self.target_node])
|
| 4708 |
_ReleaseLocks(self.lu, locking.LEVEL_NODE_ALLOC)
|
| 4709 |
|
| 4710 |
else:
|
| 4711 |
assert not self.lu.glm.is_owned(locking.LEVEL_NODE_ALLOC) |
| 4712 |
|
| 4713 |
secondary_nodes = instance.secondary_nodes |
| 4714 |
if not secondary_nodes: |
| 4715 |
raise errors.ConfigurationError("No secondary node but using" |
| 4716 |
" %s disk template" %
|
| 4717 |
instance.disk_template) |
| 4718 |
target_node = secondary_nodes[0]
|
| 4719 |
if self.lu.op.iallocator or (self.lu.op.target_node and |
| 4720 |
self.lu.op.target_node != target_node):
|
| 4721 |
if self.failover: |
| 4722 |
text = "failed over"
|
| 4723 |
else:
|
| 4724 |
text = "migrated"
|
| 4725 |
raise errors.OpPrereqError("Instances with disk template %s cannot" |
| 4726 |
" be %s to arbitrary nodes"
|
| 4727 |
" (neither an iallocator nor a target"
|
| 4728 |
" node can be passed)" %
|
| 4729 |
(instance.disk_template, text), |
| 4730 |
errors.ECODE_INVAL) |
| 4731 |
nodeinfo = self.cfg.GetNodeInfo(target_node)
|
| 4732 |
group_info = self.cfg.GetNodeGroup(nodeinfo.group)
|
| 4733 |
ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster, |
| 4734 |
group_info) |
| 4735 |
_CheckTargetNodeIPolicy(self.lu, ipolicy, instance, nodeinfo, self.cfg, |
| 4736 |
ignore=self.ignore_ipolicy)
|
| 4737 |
|
| 4738 |
i_be = cluster.FillBE(instance) |
| 4739 |
|
| 4740 |
# check memory requirements on the secondary node
|
| 4741 |
if (not self.cleanup and |
| 4742 |
(not self.failover or instance.admin_state == constants.ADMINST_UP)): |
| 4743 |
self.tgt_free_mem = _CheckNodeFreeMemory(self.lu, target_node, |
| 4744 |
"migrating instance %s" %
|
| 4745 |
instance.name, |
| 4746 |
i_be[constants.BE_MINMEM], |
| 4747 |
instance.hypervisor) |
| 4748 |
else:
|
| 4749 |
self.lu.LogInfo("Not checking memory on the secondary node as" |
| 4750 |
" instance will not be started")
|
| 4751 |
|
| 4752 |
# check if failover must be forced instead of migration
|
| 4753 |
if (not self.cleanup and not self.failover and |
| 4754 |
i_be[constants.BE_ALWAYS_FAILOVER]): |
| 4755 |
self.lu.LogInfo("Instance configured to always failover; fallback" |
| 4756 |
" to failover")
|
| 4757 |
self.failover = True |
| 4758 |
|
| 4759 |
# check bridge existance
|
| 4760 |
_CheckInstanceBridgesExist(self.lu, instance, node=target_node)
|
| 4761 |
|
| 4762 |
if not self.cleanup: |
| 4763 |
_CheckNodeNotDrained(self.lu, target_node)
|
| 4764 |
if not self.failover: |
| 4765 |
result = self.rpc.call_instance_migratable(instance.primary_node,
|
| 4766 |
instance) |
| 4767 |
if result.fail_msg and self.fallback: |
| 4768 |
self.lu.LogInfo("Can't migrate, instance offline, fallback to" |
| 4769 |
" failover")
|
| 4770 |
self.failover = True |
| 4771 |
else:
|
| 4772 |
result.Raise("Can't migrate, please use failover",
|
| 4773 |
prereq=True, ecode=errors.ECODE_STATE)
|
| 4774 |
|
| 4775 |
assert not (self.failover and self.cleanup) |
| 4776 |
|
| 4777 |
if not self.failover: |
| 4778 |
if self.lu.op.live is not None and self.lu.op.mode is not None: |
| 4779 |
raise errors.OpPrereqError("Only one of the 'live' and 'mode'" |
| 4780 |
" parameters are accepted",
|
| 4781 |
errors.ECODE_INVAL) |
| 4782 |
if self.lu.op.live is not None: |
| 4783 |
if self.lu.op.live: |
| 4784 |
self.lu.op.mode = constants.HT_MIGRATION_LIVE
|
| 4785 |
else:
|
| 4786 |
self.lu.op.mode = constants.HT_MIGRATION_NONLIVE
|
| 4787 |
# reset the 'live' parameter to None so that repeated
|
| 4788 |
# invocations of CheckPrereq do not raise an exception
|
| 4789 |
self.lu.op.live = None |
| 4790 |
elif self.lu.op.mode is None: |
| 4791 |
# read the default value from the hypervisor
|
| 4792 |
i_hv = cluster.FillHV(self.instance, skip_globals=False) |
| 4793 |
self.lu.op.mode = i_hv[constants.HV_MIGRATION_MODE]
|
| 4794 |
|
| 4795 |
self.live = self.lu.op.mode == constants.HT_MIGRATION_LIVE |
| 4796 |
else:
|
| 4797 |
# Failover is never live
|
| 4798 |
self.live = False |
| 4799 |
|
| 4800 |
if not (self.failover or self.cleanup): |
| 4801 |
remote_info = self.rpc.call_instance_info(instance.primary_node,
|
| 4802 |
instance.name, |
| 4803 |
instance.hypervisor) |
| 4804 |
remote_info.Raise("Error checking instance on node %s" %
|
| 4805 |
instance.primary_node) |
| 4806 |
instance_running = bool(remote_info.payload)
|
| 4807 |
if instance_running:
|
| 4808 |
self.current_mem = int(remote_info.payload["memory"]) |
| 4809 |
|
| 4810 |
def _RunAllocator(self): |
| 4811 |
"""Run the allocator based on input opcode.
|
| 4812 |
|
| 4813 |
"""
|
| 4814 |
assert locking.NAL in self.lu.owned_locks(locking.LEVEL_NODE_ALLOC) |
| 4815 |
|
| 4816 |
# FIXME: add a self.ignore_ipolicy option
|
| 4817 |
req = iallocator.IAReqRelocate(name=self.instance_name,
|
| 4818 |
relocate_from=[self.instance.primary_node])
|
| 4819 |
ial = iallocator.IAllocator(self.cfg, self.rpc, req) |
| 4820 |
|
| 4821 |
ial.Run(self.lu.op.iallocator)
|
| 4822 |
|
| 4823 |
if not ial.success: |
| 4824 |
raise errors.OpPrereqError("Can't compute nodes using" |
| 4825 |
" iallocator '%s': %s" %
|
| 4826 |
(self.lu.op.iallocator, ial.info),
|
| 4827 |
errors.ECODE_NORES) |
| 4828 |
self.target_node = ial.result[0] |
| 4829 |
self.lu.LogInfo("Selected nodes for instance %s via iallocator %s: %s", |
| 4830 |
self.instance_name, self.lu.op.iallocator, |
| 4831 |
utils.CommaJoin(ial.result)) |
| 4832 |
|
| 4833 |
def _WaitUntilSync(self): |
| 4834 |
"""Poll with custom rpc for disk sync.
|
| 4835 |
|
| 4836 |
This uses our own step-based rpc call.
|
| 4837 |
|
| 4838 |
"""
|
| 4839 |
self.feedback_fn("* wait until resync is done") |
| 4840 |
all_done = False
|
| 4841 |
while not all_done: |
| 4842 |
all_done = True
|
| 4843 |
result = self.rpc.call_drbd_wait_sync(self.all_nodes, |
| 4844 |
self.nodes_ip,
|
| 4845 |
(self.instance.disks,
|
| 4846 |
self.instance))
|
| 4847 |
min_percent = 100
|
| 4848 |
for node, nres in result.items(): |
| 4849 |
nres.Raise("Cannot resync disks on node %s" % node)
|
| 4850 |
node_done, node_percent = nres.payload |
| 4851 |
all_done = all_done and node_done
|
| 4852 |
if node_percent is not None: |
| 4853 |
min_percent = min(min_percent, node_percent)
|
| 4854 |
if not all_done: |
| 4855 |
if min_percent < 100: |
| 4856 |
self.feedback_fn(" - progress: %.1f%%" % min_percent) |
| 4857 |
time.sleep(2)
|
| 4858 |
|
| 4859 |
def _EnsureSecondary(self, node): |
| 4860 |
"""Demote a node to secondary.
|
| 4861 |
|
| 4862 |
"""
|
| 4863 |
self.feedback_fn("* switching node %s to secondary mode" % node) |
| 4864 |
|
| 4865 |
for dev in self.instance.disks: |
| 4866 |
self.cfg.SetDiskID(dev, node)
|
| 4867 |
|
| 4868 |
result = self.rpc.call_blockdev_close(node, self.instance.name, |
| 4869 |
self.instance.disks)
|
| 4870 |
result.Raise("Cannot change disk to secondary on node %s" % node)
|
| 4871 |
|
| 4872 |
def _GoStandalone(self): |
| 4873 |
"""Disconnect from the network.
|
| 4874 |
|
| 4875 |
"""
|
| 4876 |
self.feedback_fn("* changing into standalone mode") |
| 4877 |
result = self.rpc.call_drbd_disconnect_net(self.all_nodes, self.nodes_ip, |
| 4878 |
self.instance.disks)
|
| 4879 |
for node, nres in result.items(): |
| 4880 |
nres.Raise("Cannot disconnect disks node %s" % node)
|
| 4881 |
|
| 4882 |
def _GoReconnect(self, multimaster): |
| 4883 |
"""Reconnect to the network.
|
| 4884 |
|
| 4885 |
"""
|
| 4886 |
if multimaster:
|
| 4887 |
msg = "dual-master"
|
| 4888 |
else:
|
| 4889 |
msg = "single-master"
|
| 4890 |
self.feedback_fn("* changing disks into %s mode" % msg) |
| 4891 |
result = self.rpc.call_drbd_attach_net(self.all_nodes, self.nodes_ip, |
| 4892 |
(self.instance.disks, self.instance), |
| 4893 |
self.instance.name, multimaster)
|
| 4894 |
for node, nres in result.items(): |
| 4895 |
nres.Raise("Cannot change disks config on node %s" % node)
|
| 4896 |
|
| 4897 |
def _ExecCleanup(self): |
| 4898 |
"""Try to cleanup after a failed migration.
|
| 4899 |
|
| 4900 |
The cleanup is done by:
|
| 4901 |
- check that the instance is running only on one node
|
| 4902 |
(and update the config if needed)
|
| 4903 |
- change disks on its secondary node to secondary
|
| 4904 |
- wait until disks are fully synchronized
|
| 4905 |
- disconnect from the network
|
| 4906 |
- change disks into single-master mode
|
| 4907 |
- wait again until disks are fully synchronized
|
| 4908 |
|
| 4909 |
"""
|
| 4910 |
instance = self.instance
|
| 4911 |
target_node = self.target_node
|
| 4912 |
source_node = self.source_node
|
| 4913 |
|
| 4914 |
# check running on only one node
|
| 4915 |
self.feedback_fn("* checking where the instance actually runs" |
| 4916 |
" (if this hangs, the hypervisor might be in"
|
| 4917 |
" a bad state)")
|
| 4918 |
ins_l = self.rpc.call_instance_list(self.all_nodes, [instance.hypervisor]) |
| 4919 |
for node, result in ins_l.items(): |
| 4920 |
result.Raise("Can't contact node %s" % node)
|
| 4921 |
|
| 4922 |
runningon_source = instance.name in ins_l[source_node].payload
|
| 4923 |
runningon_target = instance.name in ins_l[target_node].payload
|
| 4924 |
|
| 4925 |
if runningon_source and runningon_target: |
| 4926 |
raise errors.OpExecError("Instance seems to be running on two nodes," |
| 4927 |
" or the hypervisor is confused; you will have"
|
| 4928 |
" to ensure manually that it runs only on one"
|
| 4929 |
" and restart this operation")
|
| 4930 |
|
| 4931 |
if not (runningon_source or runningon_target): |
| 4932 |
raise errors.OpExecError("Instance does not seem to be running at all;" |
| 4933 |
" in this case it's safer to repair by"
|
| 4934 |
" running 'gnt-instance stop' to ensure disk"
|
| 4935 |
" shutdown, and then restarting it")
|
| 4936 |
|
| 4937 |
if runningon_target:
|
| 4938 |
# the migration has actually succeeded, we need to update the config
|
| 4939 |
self.feedback_fn("* instance running on secondary node (%s)," |
| 4940 |
" updating config" % target_node)
|
| 4941 |
instance.primary_node = target_node |
| 4942 |
self.cfg.Update(instance, self.feedback_fn) |
| 4943 |
demoted_node = source_node |
| 4944 |
else:
|
| 4945 |
self.feedback_fn("* instance confirmed to be running on its" |
| 4946 |
" primary node (%s)" % source_node)
|
| 4947 |
demoted_node = target_node |
| 4948 |
|
| 4949 |
if instance.disk_template in constants.DTS_INT_MIRROR: |
| 4950 |
self._EnsureSecondary(demoted_node)
|
| 4951 |
try:
|
| 4952 |
self._WaitUntilSync()
|
| 4953 |
except errors.OpExecError:
|
| 4954 |
# we ignore here errors, since if the device is standalone, it
|
| 4955 |
# won't be able to sync
|
| 4956 |
pass
|
| 4957 |
self._GoStandalone()
|
| 4958 |
self._GoReconnect(False) |
| 4959 |
self._WaitUntilSync()
|
| 4960 |
|
| 4961 |
self.feedback_fn("* done") |
| 4962 |
|
| 4963 |
def _RevertDiskStatus(self): |
| 4964 |
"""Try to revert the disk status after a failed migration.
|
| 4965 |
|
| 4966 |
"""
|
| 4967 |
target_node = self.target_node
|
| 4968 |
if self.instance.disk_template in constants.DTS_EXT_MIRROR: |
| 4969 |
return
|
| 4970 |
|
| 4971 |
try:
|
| 4972 |
self._EnsureSecondary(target_node)
|
| 4973 |
self._GoStandalone()
|
| 4974 |
self._GoReconnect(False) |
| 4975 |
self._WaitUntilSync()
|
| 4976 |
except errors.OpExecError, err:
|
| 4977 |
self.lu.LogWarning("Migration failed and I can't reconnect the drives," |
| 4978 |
" please try to recover the instance manually;"
|
| 4979 |
" error '%s'" % str(err)) |
| 4980 |
|
| 4981 |
def _AbortMigration(self): |
| 4982 |
"""Call the hypervisor code to abort a started migration.
|
| 4983 |
|
| 4984 |
"""
|
| 4985 |
instance = self.instance
|
| 4986 |
target_node = self.target_node
|
| 4987 |
source_node = self.source_node
|
| 4988 |
migration_info = self.migration_info
|
| 4989 |
|
| 4990 |
abort_result = self.rpc.call_instance_finalize_migration_dst(target_node,
|
| 4991 |
instance, |
| 4992 |
migration_info, |
| 4993 |
False)
|
| 4994 |
abort_msg = abort_result.fail_msg |
| 4995 |
if abort_msg:
|
| 4996 |
logging.error("Aborting migration failed on target node %s: %s",
|
| 4997 |
target_node, abort_msg) |
| 4998 |
# Don't raise an exception here, as we stil have to try to revert the
|
| 4999 |
# disk status, even if this step failed.
|
| 5000 |
|
| 5001 |
abort_result = self.rpc.call_instance_finalize_migration_src(
|
| 5002 |
source_node, instance, False, self.live) |
| 5003 |
abort_msg = abort_result.fail_msg |
| 5004 |
if abort_msg:
|
| 5005 |
logging.error("Aborting migration failed on source node %s: %s",
|
| 5006 |
source_node, abort_msg) |
| 5007 |
|
| 5008 |
def _ExecMigration(self): |
| 5009 |
"""Migrate an instance.
|
| 5010 |
|
| 5011 |
The migrate is done by:
|
| 5012 |
- change the disks into dual-master mode
|
| 5013 |
- wait until disks are fully synchronized again
|
| 5014 |
- migrate the instance
|
| 5015 |
- change disks on the new secondary node (the old primary) to secondary
|
| 5016 |
- wait until disks are fully synchronized
|
| 5017 |
- change disks into single-master mode
|
| 5018 |
|
| 5019 |
"""
|
| 5020 |
instance = self.instance
|
| 5021 |
target_node = self.target_node
|
| 5022 |
source_node = self.source_node
|
| 5023 |
|
| 5024 |
# Check for hypervisor version mismatch and warn the user.
|
| 5025 |
nodeinfo = self.rpc.call_node_info([source_node, target_node],
|
| 5026 |
None, [self.instance.hypervisor], False) |
| 5027 |
for ninfo in nodeinfo.values(): |
| 5028 |
ninfo.Raise("Unable to retrieve node information from node '%s'" %
|
| 5029 |
ninfo.node) |
| 5030 |
(_, _, (src_info, )) = nodeinfo[source_node].payload |
| 5031 |
(_, _, (dst_info, )) = nodeinfo[target_node].payload |
| 5032 |
|
| 5033 |
if ((constants.HV_NODEINFO_KEY_VERSION in src_info) and |
| 5034 |
(constants.HV_NODEINFO_KEY_VERSION in dst_info)):
|
| 5035 |
src_version = src_info[constants.HV_NODEINFO_KEY_VERSION] |
| 5036 |
dst_version = dst_info[constants.HV_NODEINFO_KEY_VERSION] |
| 5037 |
if src_version != dst_version:
|
| 5038 |
self.feedback_fn("* warning: hypervisor version mismatch between" |
| 5039 |
" source (%s) and target (%s) node" %
|
| 5040 |
(src_version, dst_version)) |
| 5041 |
|
| 5042 |
self.feedback_fn("* checking disk consistency between source and target") |
| 5043 |
for (idx, dev) in enumerate(instance.disks): |
| 5044 |
if not _CheckDiskConsistency(self.lu, instance, dev, target_node, False): |
| 5045 |
raise errors.OpExecError("Disk %s is degraded or not fully" |
| 5046 |
" synchronized on target node,"
|
| 5047 |
" aborting migration" % idx)
|
| 5048 |
|
| 5049 |
if self.current_mem > self.tgt_free_mem: |
| 5050 |
if not self.allow_runtime_changes: |
| 5051 |
raise errors.OpExecError("Memory ballooning not allowed and not enough" |
| 5052 |
" free memory to fit instance %s on target"
|
| 5053 |
" node %s (have %dMB, need %dMB)" %
|
| 5054 |
(instance.name, target_node, |
| 5055 |
self.tgt_free_mem, self.current_mem)) |
| 5056 |
self.feedback_fn("* setting instance memory to %s" % self.tgt_free_mem) |
| 5057 |
rpcres = self.rpc.call_instance_balloon_memory(instance.primary_node,
|
| 5058 |
instance, |
| 5059 |
self.tgt_free_mem)
|
| 5060 |
rpcres.Raise("Cannot modify instance runtime memory")
|
| 5061 |
|
| 5062 |
# First get the migration information from the remote node
|
| 5063 |
result = self.rpc.call_migration_info(source_node, instance)
|
| 5064 |
msg = result.fail_msg |
| 5065 |
if msg:
|
| 5066 |
log_err = ("Failed fetching source migration information from %s: %s" %
|
| 5067 |
(source_node, msg)) |
| 5068 |
logging.error(log_err) |
| 5069 |
raise errors.OpExecError(log_err)
|
| 5070 |
|
| 5071 |
self.migration_info = migration_info = result.payload
|
| 5072 |
|
| 5073 |
if self.instance.disk_template not in constants.DTS_EXT_MIRROR: |
| 5074 |
# Then switch the disks to master/master mode
|
| 5075 |
self._EnsureSecondary(target_node)
|
| 5076 |
self._GoStandalone()
|
| 5077 |
self._GoReconnect(True) |
| 5078 |
self._WaitUntilSync()
|
| 5079 |
|
| 5080 |
self.feedback_fn("* preparing %s to accept the instance" % target_node) |
| 5081 |
result = self.rpc.call_accept_instance(target_node,
|
| 5082 |
instance, |
| 5083 |
migration_info, |
| 5084 |
self.nodes_ip[target_node])
|
| 5085 |
|
| 5086 |
msg = result.fail_msg |
| 5087 |
if msg:
|
| 5088 |
logging.error("Instance pre-migration failed, trying to revert"
|
| 5089 |
" disk status: %s", msg)
|
| 5090 |
self.feedback_fn("Pre-migration failed, aborting") |
| 5091 |
self._AbortMigration()
|
| 5092 |
self._RevertDiskStatus()
|
| 5093 |
raise errors.OpExecError("Could not pre-migrate instance %s: %s" % |
| 5094 |
(instance.name, msg)) |
| 5095 |
|
| 5096 |
self.feedback_fn("* migrating instance to %s" % target_node) |
| 5097 |
result = self.rpc.call_instance_migrate(source_node, instance,
|
| 5098 |
self.nodes_ip[target_node],
|
| 5099 |
self.live)
|
| 5100 |
msg = result.fail_msg |
| 5101 |
if msg:
|
| 5102 |
logging.error("Instance migration failed, trying to revert"
|
| 5103 |
" disk status: %s", msg)
|
| 5104 |
self.feedback_fn("Migration failed, aborting") |
| 5105 |
self._AbortMigration()
|
| 5106 |
self._RevertDiskStatus()
|
| 5107 |
raise errors.OpExecError("Could not migrate instance %s: %s" % |
| 5108 |
(instance.name, msg)) |
| 5109 |
|
| 5110 |
self.feedback_fn("* starting memory transfer") |
| 5111 |
last_feedback = time.time() |
| 5112 |
while True: |
| 5113 |
result = self.rpc.call_instance_get_migration_status(source_node,
|
| 5114 |
instance) |
| 5115 |
msg = result.fail_msg |
| 5116 |
ms = result.payload # MigrationStatus instance
|
| 5117 |
if msg or (ms.status in constants.HV_MIGRATION_FAILED_STATUSES): |
| 5118 |
logging.error("Instance migration failed, trying to revert"
|
| 5119 |
" disk status: %s", msg)
|
| 5120 |
self.feedback_fn("Migration failed, aborting") |
| 5121 |
self._AbortMigration()
|
| 5122 |
self._RevertDiskStatus()
|
| 5123 |
if not msg: |
| 5124 |
msg = "hypervisor returned failure"
|
| 5125 |
raise errors.OpExecError("Could not migrate instance %s: %s" % |
| 5126 |
(instance.name, msg)) |
| 5127 |
|
| 5128 |
if result.payload.status != constants.HV_MIGRATION_ACTIVE:
|
| 5129 |
self.feedback_fn("* memory transfer complete") |
| 5130 |
break
|
| 5131 |
|
| 5132 |
if (utils.TimeoutExpired(last_feedback,
|
| 5133 |
self._MIGRATION_FEEDBACK_INTERVAL) and |
| 5134 |
ms.transferred_ram is not None): |
| 5135 |
mem_progress = 100 * float(ms.transferred_ram) / float(ms.total_ram) |
| 5136 |
self.feedback_fn("* memory transfer progress: %.2f %%" % mem_progress) |
| 5137 |
last_feedback = time.time() |
| 5138 |
|
| 5139 |
time.sleep(self._MIGRATION_POLL_INTERVAL)
|
| 5140 |
|
| 5141 |
result = self.rpc.call_instance_finalize_migration_src(source_node,
|
| 5142 |
instance, |
| 5143 |
True,
|
| 5144 |
self.live)
|
| 5145 |
msg = result.fail_msg |
| 5146 |
if msg:
|
| 5147 |
logging.error("Instance migration succeeded, but finalization failed"
|
| 5148 |
" on the source node: %s", msg)
|
| 5149 |
raise errors.OpExecError("Could not finalize instance migration: %s" % |
| 5150 |
msg) |
| 5151 |
|
| 5152 |
instance.primary_node = target_node |
| 5153 |
|
| 5154 |
# distribute new instance config to the other nodes
|
| 5155 |
self.cfg.Update(instance, self.feedback_fn) |
| 5156 |
|
| 5157 |
result = self.rpc.call_instance_finalize_migration_dst(target_node,
|
| 5158 |
instance, |
| 5159 |
migration_info, |
| 5160 |
True)
|
| 5161 |
msg = result.fail_msg |
| 5162 |
if msg:
|
| 5163 |
logging.error("Instance migration succeeded, but finalization failed"
|
| 5164 |
" on the target node: %s", msg)
|
| 5165 |
raise errors.OpExecError("Could not finalize instance migration: %s" % |
| 5166 |
msg) |
| 5167 |
|
| 5168 |
if self.instance.disk_template not in constants.DTS_EXT_MIRROR: |
| 5169 |
self._EnsureSecondary(source_node)
|
| 5170 |
self._WaitUntilSync()
|
| 5171 |
self._GoStandalone()
|
| 5172 |
self._GoReconnect(False) |
| 5173 |
self._WaitUntilSync()
|
| 5174 |
|
| 5175 |
# If the instance's disk template is `rbd' or `ext' and there was a
|
| 5176 |
# successful migration, unmap the device from the source node.
|
| 5177 |
if self.instance.disk_template in (constants.DT_RBD, constants.DT_EXT): |
| 5178 |
disks = _ExpandCheckDisks(instance, instance.disks) |
| 5179 |
self.feedback_fn("* unmapping instance's disks from %s" % source_node) |
| 5180 |
for disk in disks: |
| 5181 |
result = self.rpc.call_blockdev_shutdown(source_node, (disk, instance))
|
| 5182 |
msg = result.fail_msg |
| 5183 |
if msg:
|
| 5184 |
logging.error("Migration was successful, but couldn't unmap the"
|
| 5185 |
" block device %s on source node %s: %s",
|
| 5186 |
disk.iv_name, source_node, msg) |
| 5187 |
logging.error("You need to unmap the device %s manually on %s",
|
| 5188 |
disk.iv_name, source_node) |
| 5189 |
|
| 5190 |
self.feedback_fn("* done") |
| 5191 |
|
| 5192 |
def _ExecFailover(self): |
| 5193 |
"""Failover an instance.
|
| 5194 |
|
| 5195 |
The failover is done by shutting it down on its present node and
|
| 5196 |
starting it on the secondary.
|
| 5197 |
|
| 5198 |
"""
|
| 5199 |
instance = self.instance
|
| 5200 |
primary_node = self.cfg.GetNodeInfo(instance.primary_node)
|
| 5201 |
|
| 5202 |
source_node = instance.primary_node |
| 5203 |
target_node = self.target_node
|
| 5204 |
|
| 5205 |
if instance.admin_state == constants.ADMINST_UP:
|
| 5206 |
self.feedback_fn("* checking disk consistency between source and target") |
| 5207 |
for (idx, dev) in enumerate(instance.disks): |
| 5208 |
# for drbd, these are drbd over lvm
|
| 5209 |
if not _CheckDiskConsistency(self.lu, instance, dev, target_node, |
| 5210 |
False):
|
| 5211 |
if primary_node.offline:
|
| 5212 |
self.feedback_fn("Node %s is offline, ignoring degraded disk %s on" |
| 5213 |
" target node %s" %
|
| 5214 |
(primary_node.name, idx, target_node)) |
| 5215 |
elif not self.ignore_consistency: |
| 5216 |
raise errors.OpExecError("Disk %s is degraded on target node," |
| 5217 |
" aborting failover" % idx)
|
| 5218 |
else:
|
| 5219 |
self.feedback_fn("* not checking disk consistency as instance is not" |
| 5220 |
" running")
|
| 5221 |
|
| 5222 |
self.feedback_fn("* shutting down instance on source node") |
| 5223 |
logging.info("Shutting down instance %s on node %s",
|
| 5224 |
instance.name, source_node) |
| 5225 |
|
| 5226 |
result = self.rpc.call_instance_shutdown(source_node, instance,
|
| 5227 |
self.shutdown_timeout,
|
| 5228 |
self.lu.op.reason)
|
| 5229 |
msg = result.fail_msg |
| 5230 |
if msg:
|
| 5231 |
if self.ignore_consistency or primary_node.offline: |
| 5232 |
self.lu.LogWarning("Could not shutdown instance %s on node %s," |
| 5233 |
" proceeding anyway; please make sure node"
|
| 5234 |
" %s is down; error details: %s",
|
| 5235 |
instance.name, source_node, source_node, msg) |
| 5236 |
else:
|
| 5237 |
raise errors.OpExecError("Could not shutdown instance %s on" |
| 5238 |
" node %s: %s" %
|
| 5239 |
(instance.name, source_node, msg)) |
| 5240 |
|
| 5241 |
self.feedback_fn("* deactivating the instance's disks on source node") |
| 5242 |
if not _ShutdownInstanceDisks(self.lu, instance, ignore_primary=True): |
| 5243 |
raise errors.OpExecError("Can't shut down the instance's disks") |
| 5244 |
|
| 5245 |
instance.primary_node = target_node |
| 5246 |
# distribute new instance config to the other nodes
|
| 5247 |
self.cfg.Update(instance, self.feedback_fn) |
| 5248 |
|
| 5249 |
# Only start the instance if it's marked as up
|
| 5250 |
if instance.admin_state == constants.ADMINST_UP:
|
| 5251 |
self.feedback_fn("* activating the instance's disks on target node %s" % |
| 5252 |
target_node) |
| 5253 |
logging.info("Starting instance %s on node %s",
|
| 5254 |
instance.name, target_node) |
| 5255 |
|
| 5256 |
disks_ok, _ = _AssembleInstanceDisks(self.lu, instance,
|
| 5257 |
ignore_secondaries=True)
|
| 5258 |
if not disks_ok: |
| 5259 |
_ShutdownInstanceDisks(self.lu, instance)
|
| 5260 |
raise errors.OpExecError("Can't activate the instance's disks") |
| 5261 |
|
| 5262 |
self.feedback_fn("* starting the instance on the target node %s" % |
| 5263 |
target_node) |
| 5264 |
result = self.rpc.call_instance_start(target_node, (instance, None, None), |
| 5265 |
False, self.lu.op.reason) |
| 5266 |
msg = result.fail_msg |
| 5267 |
if msg:
|
| 5268 |
_ShutdownInstanceDisks(self.lu, instance)
|
| 5269 |
raise errors.OpExecError("Could not start instance %s on node %s: %s" % |
| 5270 |
(instance.name, target_node, msg)) |
| 5271 |
|
| 5272 |
def Exec(self, feedback_fn): |
| 5273 |
"""Perform the migration.
|
| 5274 |
|
| 5275 |
"""
|
| 5276 |
self.feedback_fn = feedback_fn
|
| 5277 |
self.source_node = self.instance.primary_node |
| 5278 |
|
| 5279 |
# FIXME: if we implement migrate-to-any in DRBD, this needs fixing
|
| 5280 |
if self.instance.disk_template in constants.DTS_INT_MIRROR: |
| 5281 |
self.target_node = self.instance.secondary_nodes[0] |
| 5282 |
# Otherwise self.target_node has been populated either
|
| 5283 |
# directly, or through an iallocator.
|
| 5284 |
|
| 5285 |
self.all_nodes = [self.source_node, self.target_node] |
| 5286 |
self.nodes_ip = dict((name, node.secondary_ip) for (name, node) |
| 5287 |
in self.cfg.GetMultiNodeInfo(self.all_nodes)) |
| 5288 |
|
| 5289 |
if self.failover: |
| 5290 |
feedback_fn("Failover instance %s" % self.instance.name) |
| 5291 |
self._ExecFailover()
|
| 5292 |
else:
|
| 5293 |
feedback_fn("Migrating instance %s" % self.instance.name) |
| 5294 |
|
| 5295 |
if self.cleanup: |
| 5296 |
return self._ExecCleanup() |
| 5297 |
else:
|
| 5298 |
return self._ExecMigration() |