root / lib / cmdlib / instance.py @ 8aa8f6b1
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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 logging |
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import os |
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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 rpc |
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from ganeti import utils |
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from ganeti.cmdlib.base import NoHooksLU, LogicalUnit, ResultWithJobs |
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from ganeti.cmdlib.common import 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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_AnnotateDiskParams, _GetUpdatedParams, _ExpandInstanceName, \ |
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_ComputeIPolicySpecViolation, _CheckInstanceState, _ExpandNodeName |
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from ganeti.cmdlib.instance_storage import _CreateDisks, \ |
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_CheckNodesFreeDiskPerVG, _WipeDisks, _WaitForSync, \ |
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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
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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, _CheckNodeFreeMemory, \ |
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_CheckInstanceBridgesExist, _CheckNicsBridgesExist, _CheckNodeHasOS |
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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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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) |
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if constants.IDISK_ADOPT in disk: |
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has_adopt = True
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else:
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has_no_adopt = True
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if has_adopt and has_no_adopt: |
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raise errors.OpPrereqError("Either all disks are adopted or none is", |
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errors.ECODE_INVAL) |
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if has_adopt:
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if self.op.disk_template not in constants.DTS_MAY_ADOPT: |
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raise errors.OpPrereqError("Disk adoption is not supported for the" |
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" '%s' disk template" %
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self.op.disk_template,
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errors.ECODE_INVAL) |
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if self.op.iallocator is not None: |
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raise errors.OpPrereqError("Disk adoption not allowed with an" |
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" iallocator script", errors.ECODE_INVAL)
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if self.op.mode == constants.INSTANCE_IMPORT: |
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raise errors.OpPrereqError("Disk adoption not allowed for" |
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" instance import", errors.ECODE_INVAL)
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else:
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if self.op.disk_template in constants.DTS_MUST_ADOPT: |
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raise errors.OpPrereqError("Disk template %s requires disk adoption," |
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" but no 'adopt' parameter given" %
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self.op.disk_template,
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errors.ECODE_INVAL) |
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self.adopt_disks = has_adopt
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# instance name verification
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if self.op.name_check: |
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self.hostname1 = _CheckHostnameSane(self, self.op.instance_name) |
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self.op.instance_name = self.hostname1.name |
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# used in CheckPrereq for ip ping check
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self.check_ip = self.hostname1.ip |
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else:
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self.check_ip = None |
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# file storage checks
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if (self.op.file_driver and |
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not self.op.file_driver in constants.FILE_DRIVER): |
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raise errors.OpPrereqError("Invalid file driver name '%s'" % |
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self.op.file_driver, errors.ECODE_INVAL)
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|
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if self.op.disk_template == constants.DT_FILE: |
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opcodes.RequireFileStorage() |
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elif self.op.disk_template == constants.DT_SHARED_FILE: |
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opcodes.RequireSharedFileStorage() |
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### Node/iallocator related checks
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_CheckIAllocatorOrNode(self, "iallocator", "pnode") |
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if self.op.pnode is not None: |
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if self.op.disk_template in constants.DTS_INT_MIRROR: |
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if self.op.snode is None: |
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raise errors.OpPrereqError("The networked disk templates need" |
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" a mirror node", errors.ECODE_INVAL)
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elif self.op.snode: |
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self.LogWarning("Secondary node will be ignored on non-mirrored disk" |
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" template")
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self.op.snode = None |
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_CheckOpportunisticLocking(self.op)
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self._cds = _GetClusterDomainSecret()
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if self.op.mode == constants.INSTANCE_IMPORT: |
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# On import force_variant must be True, because if we forced it at
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# initial install, our only chance when importing it back is that it
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# works again!
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self.op.force_variant = True |
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|
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if self.op.no_install: |
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self.LogInfo("No-installation mode has no effect during import") |
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|
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elif self.op.mode == constants.INSTANCE_CREATE: |
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if self.op.os_type is None: |
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raise errors.OpPrereqError("No guest OS specified", |
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errors.ECODE_INVAL) |
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if self.op.os_type in self.cfg.GetClusterInfo().blacklisted_os: |
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raise errors.OpPrereqError("Guest OS '%s' is not allowed for" |
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" installation" % self.op.os_type, |
| 446 |
errors.ECODE_STATE) |
| 447 |
if self.op.disk_template is None: |
| 448 |
raise errors.OpPrereqError("No disk template specified", |
| 449 |
errors.ECODE_INVAL) |
| 450 |
|
| 451 |
elif self.op.mode == constants.INSTANCE_REMOTE_IMPORT: |
| 452 |
# Check handshake to ensure both clusters have the same domain secret
|
| 453 |
src_handshake = self.op.source_handshake
|
| 454 |
if not src_handshake: |
| 455 |
raise errors.OpPrereqError("Missing source handshake", |
| 456 |
errors.ECODE_INVAL) |
| 457 |
|
| 458 |
errmsg = masterd.instance.CheckRemoteExportHandshake(self._cds,
|
| 459 |
src_handshake) |
| 460 |
if errmsg:
|
| 461 |
raise errors.OpPrereqError("Invalid handshake: %s" % errmsg, |
| 462 |
errors.ECODE_INVAL) |
| 463 |
|
| 464 |
# Load and check source CA
|
| 465 |
self.source_x509_ca_pem = self.op.source_x509_ca |
| 466 |
if not self.source_x509_ca_pem: |
| 467 |
raise errors.OpPrereqError("Missing source X509 CA", |
| 468 |
errors.ECODE_INVAL) |
| 469 |
|
| 470 |
try:
|
| 471 |
(cert, _) = utils.LoadSignedX509Certificate(self.source_x509_ca_pem,
|
| 472 |
self._cds)
|
| 473 |
except OpenSSL.crypto.Error, err:
|
| 474 |
raise errors.OpPrereqError("Unable to load source X509 CA (%s)" % |
| 475 |
(err, ), errors.ECODE_INVAL) |
| 476 |
|
| 477 |
(errcode, msg) = utils.VerifyX509Certificate(cert, None, None) |
| 478 |
if errcode is not None: |
| 479 |
raise errors.OpPrereqError("Invalid source X509 CA (%s)" % (msg, ), |
| 480 |
errors.ECODE_INVAL) |
| 481 |
|
| 482 |
self.source_x509_ca = cert
|
| 483 |
|
| 484 |
src_instance_name = self.op.source_instance_name
|
| 485 |
if not src_instance_name: |
| 486 |
raise errors.OpPrereqError("Missing source instance name", |
| 487 |
errors.ECODE_INVAL) |
| 488 |
|
| 489 |
self.source_instance_name = \
|
| 490 |
netutils.GetHostname(name=src_instance_name).name |
| 491 |
|
| 492 |
else:
|
| 493 |
raise errors.OpPrereqError("Invalid instance creation mode %r" % |
| 494 |
self.op.mode, errors.ECODE_INVAL)
|
| 495 |
|
| 496 |
def ExpandNames(self): |
| 497 |
"""ExpandNames for CreateInstance.
|
| 498 |
|
| 499 |
Figure out the right locks for instance creation.
|
| 500 |
|
| 501 |
"""
|
| 502 |
self.needed_locks = {}
|
| 503 |
|
| 504 |
instance_name = self.op.instance_name
|
| 505 |
# this is just a preventive check, but someone might still add this
|
| 506 |
# instance in the meantime, and creation will fail at lock-add time
|
| 507 |
if instance_name in self.cfg.GetInstanceList(): |
| 508 |
raise errors.OpPrereqError("Instance '%s' is already in the cluster" % |
| 509 |
instance_name, errors.ECODE_EXISTS) |
| 510 |
|
| 511 |
self.add_locks[locking.LEVEL_INSTANCE] = instance_name
|
| 512 |
|
| 513 |
if self.op.iallocator: |
| 514 |
# TODO: Find a solution to not lock all nodes in the cluster, e.g. by
|
| 515 |
# specifying a group on instance creation and then selecting nodes from
|
| 516 |
# that group
|
| 517 |
self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
|
| 518 |
self.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET
|
| 519 |
|
| 520 |
if self.op.opportunistic_locking: |
| 521 |
self.opportunistic_locks[locking.LEVEL_NODE] = True |
| 522 |
self.opportunistic_locks[locking.LEVEL_NODE_RES] = True |
| 523 |
else:
|
| 524 |
self.op.pnode = _ExpandNodeName(self.cfg, self.op.pnode) |
| 525 |
nodelist = [self.op.pnode]
|
| 526 |
if self.op.snode is not None: |
| 527 |
self.op.snode = _ExpandNodeName(self.cfg, self.op.snode) |
| 528 |
nodelist.append(self.op.snode)
|
| 529 |
self.needed_locks[locking.LEVEL_NODE] = nodelist
|
| 530 |
|
| 531 |
# in case of import lock the source node too
|
| 532 |
if self.op.mode == constants.INSTANCE_IMPORT: |
| 533 |
src_node = self.op.src_node
|
| 534 |
src_path = self.op.src_path
|
| 535 |
|
| 536 |
if src_path is None: |
| 537 |
self.op.src_path = src_path = self.op.instance_name |
| 538 |
|
| 539 |
if src_node is None: |
| 540 |
self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
|
| 541 |
self.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET
|
| 542 |
self.op.src_node = None |
| 543 |
if os.path.isabs(src_path):
|
| 544 |
raise errors.OpPrereqError("Importing an instance from a path" |
| 545 |
" requires a source node option",
|
| 546 |
errors.ECODE_INVAL) |
| 547 |
else:
|
| 548 |
self.op.src_node = src_node = _ExpandNodeName(self.cfg, src_node) |
| 549 |
if self.needed_locks[locking.LEVEL_NODE] is not locking.ALL_SET: |
| 550 |
self.needed_locks[locking.LEVEL_NODE].append(src_node)
|
| 551 |
if not os.path.isabs(src_path): |
| 552 |
self.op.src_path = src_path = \
|
| 553 |
utils.PathJoin(pathutils.EXPORT_DIR, src_path) |
| 554 |
|
| 555 |
self.needed_locks[locking.LEVEL_NODE_RES] = \
|
| 556 |
_CopyLockList(self.needed_locks[locking.LEVEL_NODE])
|
| 557 |
|
| 558 |
def _RunAllocator(self): |
| 559 |
"""Run the allocator based on input opcode.
|
| 560 |
|
| 561 |
"""
|
| 562 |
if self.op.opportunistic_locking: |
| 563 |
# Only consider nodes for which a lock is held
|
| 564 |
node_whitelist = list(self.owned_locks(locking.LEVEL_NODE)) |
| 565 |
else:
|
| 566 |
node_whitelist = None
|
| 567 |
|
| 568 |
#TODO Export network to iallocator so that it chooses a pnode
|
| 569 |
# in a nodegroup that has the desired network connected to
|
| 570 |
req = _CreateInstanceAllocRequest(self.op, self.disks, |
| 571 |
self.nics, self.be_full, |
| 572 |
node_whitelist) |
| 573 |
ial = iallocator.IAllocator(self.cfg, self.rpc, req) |
| 574 |
|
| 575 |
ial.Run(self.op.iallocator)
|
| 576 |
|
| 577 |
if not ial.success: |
| 578 |
# When opportunistic locks are used only a temporary failure is generated
|
| 579 |
if self.op.opportunistic_locking: |
| 580 |
ecode = errors.ECODE_TEMP_NORES |
| 581 |
else:
|
| 582 |
ecode = errors.ECODE_NORES |
| 583 |
|
| 584 |
raise errors.OpPrereqError("Can't compute nodes using" |
| 585 |
" iallocator '%s': %s" %
|
| 586 |
(self.op.iallocator, ial.info),
|
| 587 |
ecode) |
| 588 |
|
| 589 |
self.op.pnode = ial.result[0] |
| 590 |
self.LogInfo("Selected nodes for instance %s via iallocator %s: %s", |
| 591 |
self.op.instance_name, self.op.iallocator, |
| 592 |
utils.CommaJoin(ial.result)) |
| 593 |
|
| 594 |
assert req.RequiredNodes() in (1, 2), "Wrong node count from iallocator" |
| 595 |
|
| 596 |
if req.RequiredNodes() == 2: |
| 597 |
self.op.snode = ial.result[1] |
| 598 |
|
| 599 |
def BuildHooksEnv(self): |
| 600 |
"""Build hooks env.
|
| 601 |
|
| 602 |
This runs on master, primary and secondary nodes of the instance.
|
| 603 |
|
| 604 |
"""
|
| 605 |
env = {
|
| 606 |
"ADD_MODE": self.op.mode, |
| 607 |
} |
| 608 |
if self.op.mode == constants.INSTANCE_IMPORT: |
| 609 |
env["SRC_NODE"] = self.op.src_node |
| 610 |
env["SRC_PATH"] = self.op.src_path |
| 611 |
env["SRC_IMAGES"] = self.src_images |
| 612 |
|
| 613 |
env.update(_BuildInstanceHookEnv( |
| 614 |
name=self.op.instance_name,
|
| 615 |
primary_node=self.op.pnode,
|
| 616 |
secondary_nodes=self.secondaries,
|
| 617 |
status=self.op.start,
|
| 618 |
os_type=self.op.os_type,
|
| 619 |
minmem=self.be_full[constants.BE_MINMEM],
|
| 620 |
maxmem=self.be_full[constants.BE_MAXMEM],
|
| 621 |
vcpus=self.be_full[constants.BE_VCPUS],
|
| 622 |
nics=_NICListToTuple(self, self.nics), |
| 623 |
disk_template=self.op.disk_template,
|
| 624 |
disks=[(d[constants.IDISK_NAME], d[constants.IDISK_SIZE], |
| 625 |
d[constants.IDISK_MODE]) for d in self.disks], |
| 626 |
bep=self.be_full,
|
| 627 |
hvp=self.hv_full,
|
| 628 |
hypervisor_name=self.op.hypervisor,
|
| 629 |
tags=self.op.tags,
|
| 630 |
)) |
| 631 |
|
| 632 |
return env
|
| 633 |
|
| 634 |
def BuildHooksNodes(self): |
| 635 |
"""Build hooks nodes.
|
| 636 |
|
| 637 |
"""
|
| 638 |
nl = [self.cfg.GetMasterNode(), self.op.pnode] + self.secondaries |
| 639 |
return nl, nl
|
| 640 |
|
| 641 |
def _ReadExportInfo(self): |
| 642 |
"""Reads the export information from disk.
|
| 643 |
|
| 644 |
It will override the opcode source node and path with the actual
|
| 645 |
information, if these two were not specified before.
|
| 646 |
|
| 647 |
@return: the export information
|
| 648 |
|
| 649 |
"""
|
| 650 |
assert self.op.mode == constants.INSTANCE_IMPORT |
| 651 |
|
| 652 |
src_node = self.op.src_node
|
| 653 |
src_path = self.op.src_path
|
| 654 |
|
| 655 |
if src_node is None: |
| 656 |
locked_nodes = self.owned_locks(locking.LEVEL_NODE)
|
| 657 |
exp_list = self.rpc.call_export_list(locked_nodes)
|
| 658 |
found = False
|
| 659 |
for node in exp_list: |
| 660 |
if exp_list[node].fail_msg:
|
| 661 |
continue
|
| 662 |
if src_path in exp_list[node].payload: |
| 663 |
found = True
|
| 664 |
self.op.src_node = src_node = node
|
| 665 |
self.op.src_path = src_path = utils.PathJoin(pathutils.EXPORT_DIR,
|
| 666 |
src_path) |
| 667 |
break
|
| 668 |
if not found: |
| 669 |
raise errors.OpPrereqError("No export found for relative path %s" % |
| 670 |
src_path, errors.ECODE_INVAL) |
| 671 |
|
| 672 |
_CheckNodeOnline(self, src_node)
|
| 673 |
result = self.rpc.call_export_info(src_node, src_path)
|
| 674 |
result.Raise("No export or invalid export found in dir %s" % src_path)
|
| 675 |
|
| 676 |
export_info = objects.SerializableConfigParser.Loads(str(result.payload))
|
| 677 |
if not export_info.has_section(constants.INISECT_EXP): |
| 678 |
raise errors.ProgrammerError("Corrupted export config", |
| 679 |
errors.ECODE_ENVIRON) |
| 680 |
|
| 681 |
ei_version = export_info.get(constants.INISECT_EXP, "version")
|
| 682 |
if (int(ei_version) != constants.EXPORT_VERSION): |
| 683 |
raise errors.OpPrereqError("Wrong export version %s (wanted %d)" % |
| 684 |
(ei_version, constants.EXPORT_VERSION), |
| 685 |
errors.ECODE_ENVIRON) |
| 686 |
return export_info
|
| 687 |
|
| 688 |
def _ReadExportParams(self, einfo): |
| 689 |
"""Use export parameters as defaults.
|
| 690 |
|
| 691 |
In case the opcode doesn't specify (as in override) some instance
|
| 692 |
parameters, then try to use them from the export information, if
|
| 693 |
that declares them.
|
| 694 |
|
| 695 |
"""
|
| 696 |
self.op.os_type = einfo.get(constants.INISECT_EXP, "os") |
| 697 |
|
| 698 |
if self.op.disk_template is None: |
| 699 |
if einfo.has_option(constants.INISECT_INS, "disk_template"): |
| 700 |
self.op.disk_template = einfo.get(constants.INISECT_INS,
|
| 701 |
"disk_template")
|
| 702 |
if self.op.disk_template not in constants.DISK_TEMPLATES: |
| 703 |
raise errors.OpPrereqError("Disk template specified in configuration" |
| 704 |
" file is not one of the allowed values:"
|
| 705 |
" %s" %
|
| 706 |
" ".join(constants.DISK_TEMPLATES),
|
| 707 |
errors.ECODE_INVAL) |
| 708 |
else:
|
| 709 |
raise errors.OpPrereqError("No disk template specified and the export" |
| 710 |
" is missing the disk_template information",
|
| 711 |
errors.ECODE_INVAL) |
| 712 |
|
| 713 |
if not self.op.disks: |
| 714 |
disks = [] |
| 715 |
# TODO: import the disk iv_name too
|
| 716 |
for idx in range(constants.MAX_DISKS): |
| 717 |
if einfo.has_option(constants.INISECT_INS, "disk%d_size" % idx): |
| 718 |
disk_sz = einfo.getint(constants.INISECT_INS, "disk%d_size" % idx)
|
| 719 |
disks.append({constants.IDISK_SIZE: disk_sz})
|
| 720 |
self.op.disks = disks
|
| 721 |
if not disks and self.op.disk_template != constants.DT_DISKLESS: |
| 722 |
raise errors.OpPrereqError("No disk info specified and the export" |
| 723 |
" is missing the disk information",
|
| 724 |
errors.ECODE_INVAL) |
| 725 |
|
| 726 |
if not self.op.nics: |
| 727 |
nics = [] |
| 728 |
for idx in range(constants.MAX_NICS): |
| 729 |
if einfo.has_option(constants.INISECT_INS, "nic%d_mac" % idx): |
| 730 |
ndict = {}
|
| 731 |
for name in list(constants.NICS_PARAMETERS) + ["ip", "mac"]: |
| 732 |
v = einfo.get(constants.INISECT_INS, "nic%d_%s" % (idx, name))
|
| 733 |
ndict[name] = v |
| 734 |
nics.append(ndict) |
| 735 |
else:
|
| 736 |
break
|
| 737 |
self.op.nics = nics
|
| 738 |
|
| 739 |
if not self.op.tags and einfo.has_option(constants.INISECT_INS, "tags"): |
| 740 |
self.op.tags = einfo.get(constants.INISECT_INS, "tags").split() |
| 741 |
|
| 742 |
if (self.op.hypervisor is None and |
| 743 |
einfo.has_option(constants.INISECT_INS, "hypervisor")):
|
| 744 |
self.op.hypervisor = einfo.get(constants.INISECT_INS, "hypervisor") |
| 745 |
|
| 746 |
if einfo.has_section(constants.INISECT_HYP):
|
| 747 |
# use the export parameters but do not override the ones
|
| 748 |
# specified by the user
|
| 749 |
for name, value in einfo.items(constants.INISECT_HYP): |
| 750 |
if name not in self.op.hvparams: |
| 751 |
self.op.hvparams[name] = value
|
| 752 |
|
| 753 |
if einfo.has_section(constants.INISECT_BEP):
|
| 754 |
# use the parameters, without overriding
|
| 755 |
for name, value in einfo.items(constants.INISECT_BEP): |
| 756 |
if name not in self.op.beparams: |
| 757 |
self.op.beparams[name] = value
|
| 758 |
# Compatibility for the old "memory" be param
|
| 759 |
if name == constants.BE_MEMORY:
|
| 760 |
if constants.BE_MAXMEM not in self.op.beparams: |
| 761 |
self.op.beparams[constants.BE_MAXMEM] = value
|
| 762 |
if constants.BE_MINMEM not in self.op.beparams: |
| 763 |
self.op.beparams[constants.BE_MINMEM] = value
|
| 764 |
else:
|
| 765 |
# try to read the parameters old style, from the main section
|
| 766 |
for name in constants.BES_PARAMETERS: |
| 767 |
if (name not in self.op.beparams and |
| 768 |
einfo.has_option(constants.INISECT_INS, name)): |
| 769 |
self.op.beparams[name] = einfo.get(constants.INISECT_INS, name)
|
| 770 |
|
| 771 |
if einfo.has_section(constants.INISECT_OSP):
|
| 772 |
# use the parameters, without overriding
|
| 773 |
for name, value in einfo.items(constants.INISECT_OSP): |
| 774 |
if name not in self.op.osparams: |
| 775 |
self.op.osparams[name] = value
|
| 776 |
|
| 777 |
def _RevertToDefaults(self, cluster): |
| 778 |
"""Revert the instance parameters to the default values.
|
| 779 |
|
| 780 |
"""
|
| 781 |
# hvparams
|
| 782 |
hv_defs = cluster.SimpleFillHV(self.op.hypervisor, self.op.os_type, {}) |
| 783 |
for name in self.op.hvparams.keys(): |
| 784 |
if name in hv_defs and hv_defs[name] == self.op.hvparams[name]: |
| 785 |
del self.op.hvparams[name] |
| 786 |
# beparams
|
| 787 |
be_defs = cluster.SimpleFillBE({})
|
| 788 |
for name in self.op.beparams.keys(): |
| 789 |
if name in be_defs and be_defs[name] == self.op.beparams[name]: |
| 790 |
del self.op.beparams[name] |
| 791 |
# nic params
|
| 792 |
nic_defs = cluster.SimpleFillNIC({})
|
| 793 |
for nic in self.op.nics: |
| 794 |
for name in constants.NICS_PARAMETERS: |
| 795 |
if name in nic and name in nic_defs and nic[name] == nic_defs[name]: |
| 796 |
del nic[name]
|
| 797 |
# osparams
|
| 798 |
os_defs = cluster.SimpleFillOS(self.op.os_type, {})
|
| 799 |
for name in self.op.osparams.keys(): |
| 800 |
if name in os_defs and os_defs[name] == self.op.osparams[name]: |
| 801 |
del self.op.osparams[name] |
| 802 |
|
| 803 |
def _CalculateFileStorageDir(self): |
| 804 |
"""Calculate final instance file storage dir.
|
| 805 |
|
| 806 |
"""
|
| 807 |
# file storage dir calculation/check
|
| 808 |
self.instance_file_storage_dir = None |
| 809 |
if self.op.disk_template in constants.DTS_FILEBASED: |
| 810 |
# build the full file storage dir path
|
| 811 |
joinargs = [] |
| 812 |
|
| 813 |
if self.op.disk_template == constants.DT_SHARED_FILE: |
| 814 |
get_fsd_fn = self.cfg.GetSharedFileStorageDir
|
| 815 |
else:
|
| 816 |
get_fsd_fn = self.cfg.GetFileStorageDir
|
| 817 |
|
| 818 |
cfg_storagedir = get_fsd_fn() |
| 819 |
if not cfg_storagedir: |
| 820 |
raise errors.OpPrereqError("Cluster file storage dir not defined", |
| 821 |
errors.ECODE_STATE) |
| 822 |
joinargs.append(cfg_storagedir) |
| 823 |
|
| 824 |
if self.op.file_storage_dir is not None: |
| 825 |
joinargs.append(self.op.file_storage_dir)
|
| 826 |
|
| 827 |
joinargs.append(self.op.instance_name)
|
| 828 |
|
| 829 |
# pylint: disable=W0142
|
| 830 |
self.instance_file_storage_dir = utils.PathJoin(*joinargs)
|
| 831 |
|
| 832 |
def CheckPrereq(self): # pylint: disable=R0914 |
| 833 |
"""Check prerequisites.
|
| 834 |
|
| 835 |
"""
|
| 836 |
self._CalculateFileStorageDir()
|
| 837 |
|
| 838 |
if self.op.mode == constants.INSTANCE_IMPORT: |
| 839 |
export_info = self._ReadExportInfo()
|
| 840 |
self._ReadExportParams(export_info)
|
| 841 |
self._old_instance_name = export_info.get(constants.INISECT_INS, "name") |
| 842 |
else:
|
| 843 |
self._old_instance_name = None |
| 844 |
|
| 845 |
if (not self.cfg.GetVGName() and |
| 846 |
self.op.disk_template not in constants.DTS_NOT_LVM): |
| 847 |
raise errors.OpPrereqError("Cluster does not support lvm-based" |
| 848 |
" instances", errors.ECODE_STATE)
|
| 849 |
|
| 850 |
if (self.op.hypervisor is None or |
| 851 |
self.op.hypervisor == constants.VALUE_AUTO):
|
| 852 |
self.op.hypervisor = self.cfg.GetHypervisorType() |
| 853 |
|
| 854 |
cluster = self.cfg.GetClusterInfo()
|
| 855 |
enabled_hvs = cluster.enabled_hypervisors |
| 856 |
if self.op.hypervisor not in enabled_hvs: |
| 857 |
raise errors.OpPrereqError("Selected hypervisor (%s) not enabled in the" |
| 858 |
" cluster (%s)" %
|
| 859 |
(self.op.hypervisor, ",".join(enabled_hvs)), |
| 860 |
errors.ECODE_STATE) |
| 861 |
|
| 862 |
# Check tag validity
|
| 863 |
for tag in self.op.tags: |
| 864 |
objects.TaggableObject.ValidateTag(tag) |
| 865 |
|
| 866 |
# check hypervisor parameter syntax (locally)
|
| 867 |
utils.ForceDictType(self.op.hvparams, constants.HVS_PARAMETER_TYPES)
|
| 868 |
filled_hvp = cluster.SimpleFillHV(self.op.hypervisor, self.op.os_type, |
| 869 |
self.op.hvparams)
|
| 870 |
hv_type = hypervisor.GetHypervisorClass(self.op.hypervisor)
|
| 871 |
hv_type.CheckParameterSyntax(filled_hvp) |
| 872 |
self.hv_full = filled_hvp
|
| 873 |
# check that we don't specify global parameters on an instance
|
| 874 |
_CheckParamsNotGlobal(self.op.hvparams, constants.HVC_GLOBALS, "hypervisor", |
| 875 |
"instance", "cluster") |
| 876 |
|
| 877 |
# fill and remember the beparams dict
|
| 878 |
self.be_full = _ComputeFullBeParams(self.op, cluster) |
| 879 |
|
| 880 |
# build os parameters
|
| 881 |
self.os_full = cluster.SimpleFillOS(self.op.os_type, self.op.osparams) |
| 882 |
|
| 883 |
# now that hvp/bep are in final format, let's reset to defaults,
|
| 884 |
# if told to do so
|
| 885 |
if self.op.identify_defaults: |
| 886 |
self._RevertToDefaults(cluster)
|
| 887 |
|
| 888 |
# NIC buildup
|
| 889 |
self.nics = _ComputeNics(self.op, cluster, self.check_ip, self.cfg, |
| 890 |
self.proc.GetECId())
|
| 891 |
|
| 892 |
# disk checks/pre-build
|
| 893 |
default_vg = self.cfg.GetVGName()
|
| 894 |
self.disks = _ComputeDisks(self.op, default_vg) |
| 895 |
|
| 896 |
if self.op.mode == constants.INSTANCE_IMPORT: |
| 897 |
disk_images = [] |
| 898 |
for idx in range(len(self.disks)): |
| 899 |
option = "disk%d_dump" % idx
|
| 900 |
if export_info.has_option(constants.INISECT_INS, option):
|
| 901 |
# FIXME: are the old os-es, disk sizes, etc. useful?
|
| 902 |
export_name = export_info.get(constants.INISECT_INS, option) |
| 903 |
image = utils.PathJoin(self.op.src_path, export_name)
|
| 904 |
disk_images.append(image) |
| 905 |
else:
|
| 906 |
disk_images.append(False)
|
| 907 |
|
| 908 |
self.src_images = disk_images
|
| 909 |
|
| 910 |
if self.op.instance_name == self._old_instance_name: |
| 911 |
for idx, nic in enumerate(self.nics): |
| 912 |
if nic.mac == constants.VALUE_AUTO:
|
| 913 |
nic_mac_ini = "nic%d_mac" % idx
|
| 914 |
nic.mac = export_info.get(constants.INISECT_INS, nic_mac_ini) |
| 915 |
|
| 916 |
# ENDIF: self.op.mode == constants.INSTANCE_IMPORT
|
| 917 |
|
| 918 |
# ip ping checks (we use the same ip that was resolved in ExpandNames)
|
| 919 |
if self.op.ip_check: |
| 920 |
if netutils.TcpPing(self.check_ip, constants.DEFAULT_NODED_PORT): |
| 921 |
raise errors.OpPrereqError("IP %s of instance %s already in use" % |
| 922 |
(self.check_ip, self.op.instance_name), |
| 923 |
errors.ECODE_NOTUNIQUE) |
| 924 |
|
| 925 |
#### mac address generation
|
| 926 |
# By generating here the mac address both the allocator and the hooks get
|
| 927 |
# the real final mac address rather than the 'auto' or 'generate' value.
|
| 928 |
# There is a race condition between the generation and the instance object
|
| 929 |
# creation, which means that we know the mac is valid now, but we're not
|
| 930 |
# sure it will be when we actually add the instance. If things go bad
|
| 931 |
# adding the instance will abort because of a duplicate mac, and the
|
| 932 |
# creation job will fail.
|
| 933 |
for nic in self.nics: |
| 934 |
if nic.mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE): |
| 935 |
nic.mac = self.cfg.GenerateMAC(nic.network, self.proc.GetECId()) |
| 936 |
|
| 937 |
#### allocator run
|
| 938 |
|
| 939 |
if self.op.iallocator is not None: |
| 940 |
self._RunAllocator()
|
| 941 |
|
| 942 |
# Release all unneeded node locks
|
| 943 |
keep_locks = filter(None, [self.op.pnode, self.op.snode, self.op.src_node]) |
| 944 |
_ReleaseLocks(self, locking.LEVEL_NODE, keep=keep_locks)
|
| 945 |
_ReleaseLocks(self, locking.LEVEL_NODE_RES, keep=keep_locks)
|
| 946 |
_ReleaseLocks(self, locking.LEVEL_NODE_ALLOC)
|
| 947 |
|
| 948 |
assert (self.owned_locks(locking.LEVEL_NODE) == |
| 949 |
self.owned_locks(locking.LEVEL_NODE_RES)), \
|
| 950 |
"Node locks differ from node resource locks"
|
| 951 |
|
| 952 |
#### node related checks
|
| 953 |
|
| 954 |
# check primary node
|
| 955 |
self.pnode = pnode = self.cfg.GetNodeInfo(self.op.pnode) |
| 956 |
assert self.pnode is not None, \ |
| 957 |
"Cannot retrieve locked node %s" % self.op.pnode |
| 958 |
if pnode.offline:
|
| 959 |
raise errors.OpPrereqError("Cannot use offline primary node '%s'" % |
| 960 |
pnode.name, errors.ECODE_STATE) |
| 961 |
if pnode.drained:
|
| 962 |
raise errors.OpPrereqError("Cannot use drained primary node '%s'" % |
| 963 |
pnode.name, errors.ECODE_STATE) |
| 964 |
if not pnode.vm_capable: |
| 965 |
raise errors.OpPrereqError("Cannot use non-vm_capable primary node" |
| 966 |
" '%s'" % pnode.name, errors.ECODE_STATE)
|
| 967 |
|
| 968 |
self.secondaries = []
|
| 969 |
|
| 970 |
# Fill in any IPs from IP pools. This must happen here, because we need to
|
| 971 |
# know the nic's primary node, as specified by the iallocator
|
| 972 |
for idx, nic in enumerate(self.nics): |
| 973 |
net_uuid = nic.network |
| 974 |
if net_uuid is not None: |
| 975 |
nobj = self.cfg.GetNetwork(net_uuid)
|
| 976 |
netparams = self.cfg.GetGroupNetParams(net_uuid, self.pnode.name) |
| 977 |
if netparams is None: |
| 978 |
raise errors.OpPrereqError("No netparams found for network" |
| 979 |
" %s. Propably not connected to"
|
| 980 |
" node's %s nodegroup" %
|
| 981 |
(nobj.name, self.pnode.name),
|
| 982 |
errors.ECODE_INVAL) |
| 983 |
self.LogInfo("NIC/%d inherits netparams %s" % |
| 984 |
(idx, netparams.values())) |
| 985 |
nic.nicparams = dict(netparams)
|
| 986 |
if nic.ip is not None: |
| 987 |
if nic.ip.lower() == constants.NIC_IP_POOL:
|
| 988 |
try:
|
| 989 |
nic.ip = self.cfg.GenerateIp(net_uuid, self.proc.GetECId()) |
| 990 |
except errors.ReservationError:
|
| 991 |
raise errors.OpPrereqError("Unable to get a free IP for NIC %d" |
| 992 |
" from the address pool" % idx,
|
| 993 |
errors.ECODE_STATE) |
| 994 |
self.LogInfo("Chose IP %s from network %s", nic.ip, nobj.name) |
| 995 |
else:
|
| 996 |
try:
|
| 997 |
self.cfg.ReserveIp(net_uuid, nic.ip, self.proc.GetECId()) |
| 998 |
except errors.ReservationError:
|
| 999 |
raise errors.OpPrereqError("IP address %s already in use" |
| 1000 |
" or does not belong to network %s" %
|
| 1001 |
(nic.ip, nobj.name), |
| 1002 |
errors.ECODE_NOTUNIQUE) |
| 1003 |
|
| 1004 |
# net is None, ip None or given
|
| 1005 |
elif self.op.conflicts_check: |
| 1006 |
_CheckForConflictingIp(self, nic.ip, self.pnode.name) |
| 1007 |
|
| 1008 |
# mirror node verification
|
| 1009 |
if self.op.disk_template in constants.DTS_INT_MIRROR: |
| 1010 |
if self.op.snode == pnode.name: |
| 1011 |
raise errors.OpPrereqError("The secondary node cannot be the" |
| 1012 |
" primary node", errors.ECODE_INVAL)
|
| 1013 |
_CheckNodeOnline(self, self.op.snode) |
| 1014 |
_CheckNodeNotDrained(self, self.op.snode) |
| 1015 |
_CheckNodeVmCapable(self, self.op.snode) |
| 1016 |
self.secondaries.append(self.op.snode) |
| 1017 |
|
| 1018 |
snode = self.cfg.GetNodeInfo(self.op.snode) |
| 1019 |
if pnode.group != snode.group:
|
| 1020 |
self.LogWarning("The primary and secondary nodes are in two" |
| 1021 |
" different node groups; the disk parameters"
|
| 1022 |
" from the first disk's node group will be"
|
| 1023 |
" used")
|
| 1024 |
|
| 1025 |
if not self.op.disk_template in constants.DTS_EXCL_STORAGE: |
| 1026 |
nodes = [pnode] |
| 1027 |
if self.op.disk_template in constants.DTS_INT_MIRROR: |
| 1028 |
nodes.append(snode) |
| 1029 |
has_es = lambda n: _IsExclusiveStorageEnabledNode(self.cfg, n) |
| 1030 |
if compat.any(map(has_es, nodes)): |
| 1031 |
raise errors.OpPrereqError("Disk template %s not supported with" |
| 1032 |
" exclusive storage" % self.op.disk_template, |
| 1033 |
errors.ECODE_STATE) |
| 1034 |
|
| 1035 |
nodenames = [pnode.name] + self.secondaries
|
| 1036 |
|
| 1037 |
if not self.adopt_disks: |
| 1038 |
if self.op.disk_template == constants.DT_RBD: |
| 1039 |
# _CheckRADOSFreeSpace() is just a placeholder.
|
| 1040 |
# Any function that checks prerequisites can be placed here.
|
| 1041 |
# Check if there is enough space on the RADOS cluster.
|
| 1042 |
_CheckRADOSFreeSpace() |
| 1043 |
elif self.op.disk_template == constants.DT_EXT: |
| 1044 |
# FIXME: Function that checks prereqs if needed
|
| 1045 |
pass
|
| 1046 |
else:
|
| 1047 |
# Check lv size requirements, if not adopting
|
| 1048 |
req_sizes = _ComputeDiskSizePerVG(self.op.disk_template, self.disks) |
| 1049 |
_CheckNodesFreeDiskPerVG(self, nodenames, req_sizes)
|
| 1050 |
|
| 1051 |
elif self.op.disk_template == constants.DT_PLAIN: # Check the adoption data |
| 1052 |
all_lvs = set(["%s/%s" % (disk[constants.IDISK_VG], |
| 1053 |
disk[constants.IDISK_ADOPT]) |
| 1054 |
for disk in self.disks]) |
| 1055 |
if len(all_lvs) != len(self.disks): |
| 1056 |
raise errors.OpPrereqError("Duplicate volume names given for adoption", |
| 1057 |
errors.ECODE_INVAL) |
| 1058 |
for lv_name in all_lvs: |
| 1059 |
try:
|
| 1060 |
# FIXME: lv_name here is "vg/lv" need to ensure that other calls
|
| 1061 |
# to ReserveLV uses the same syntax
|
| 1062 |
self.cfg.ReserveLV(lv_name, self.proc.GetECId()) |
| 1063 |
except errors.ReservationError:
|
| 1064 |
raise errors.OpPrereqError("LV named %s used by another instance" % |
| 1065 |
lv_name, errors.ECODE_NOTUNIQUE) |
| 1066 |
|
| 1067 |
vg_names = self.rpc.call_vg_list([pnode.name])[pnode.name]
|
| 1068 |
vg_names.Raise("Cannot get VG information from node %s" % pnode.name)
|
| 1069 |
|
| 1070 |
node_lvs = self.rpc.call_lv_list([pnode.name],
|
| 1071 |
vg_names.payload.keys())[pnode.name] |
| 1072 |
node_lvs.Raise("Cannot get LV information from node %s" % pnode.name)
|
| 1073 |
node_lvs = node_lvs.payload |
| 1074 |
|
| 1075 |
delta = all_lvs.difference(node_lvs.keys()) |
| 1076 |
if delta:
|
| 1077 |
raise errors.OpPrereqError("Missing logical volume(s): %s" % |
| 1078 |
utils.CommaJoin(delta), |
| 1079 |
errors.ECODE_INVAL) |
| 1080 |
online_lvs = [lv for lv in all_lvs if node_lvs[lv][2]] |
| 1081 |
if online_lvs:
|
| 1082 |
raise errors.OpPrereqError("Online logical volumes found, cannot" |
| 1083 |
" adopt: %s" % utils.CommaJoin(online_lvs),
|
| 1084 |
errors.ECODE_STATE) |
| 1085 |
# update the size of disk based on what is found
|
| 1086 |
for dsk in self.disks: |
| 1087 |
dsk[constants.IDISK_SIZE] = \ |
| 1088 |
int(float(node_lvs["%s/%s" % (dsk[constants.IDISK_VG], |
| 1089 |
dsk[constants.IDISK_ADOPT])][0]))
|
| 1090 |
|
| 1091 |
elif self.op.disk_template == constants.DT_BLOCK: |
| 1092 |
# Normalize and de-duplicate device paths
|
| 1093 |
all_disks = set([os.path.abspath(disk[constants.IDISK_ADOPT])
|
| 1094 |
for disk in self.disks]) |
| 1095 |
if len(all_disks) != len(self.disks): |
| 1096 |
raise errors.OpPrereqError("Duplicate disk names given for adoption", |
| 1097 |
errors.ECODE_INVAL) |
| 1098 |
baddisks = [d for d in all_disks |
| 1099 |
if not d.startswith(constants.ADOPTABLE_BLOCKDEV_ROOT)] |
| 1100 |
if baddisks:
|
| 1101 |
raise errors.OpPrereqError("Device node(s) %s lie outside %s and" |
| 1102 |
" cannot be adopted" %
|
| 1103 |
(utils.CommaJoin(baddisks), |
| 1104 |
constants.ADOPTABLE_BLOCKDEV_ROOT), |
| 1105 |
errors.ECODE_INVAL) |
| 1106 |
|
| 1107 |
node_disks = self.rpc.call_bdev_sizes([pnode.name],
|
| 1108 |
list(all_disks))[pnode.name]
|
| 1109 |
node_disks.Raise("Cannot get block device information from node %s" %
|
| 1110 |
pnode.name) |
| 1111 |
node_disks = node_disks.payload |
| 1112 |
delta = all_disks.difference(node_disks.keys()) |
| 1113 |
if delta:
|
| 1114 |
raise errors.OpPrereqError("Missing block device(s): %s" % |
| 1115 |
utils.CommaJoin(delta), |
| 1116 |
errors.ECODE_INVAL) |
| 1117 |
for dsk in self.disks: |
| 1118 |
dsk[constants.IDISK_SIZE] = \ |
| 1119 |
int(float(node_disks[dsk[constants.IDISK_ADOPT]])) |
| 1120 |
|
| 1121 |
# Verify instance specs
|
| 1122 |
spindle_use = self.be_full.get(constants.BE_SPINDLE_USE, None) |
| 1123 |
ispec = {
|
| 1124 |
constants.ISPEC_MEM_SIZE: self.be_full.get(constants.BE_MAXMEM, None), |
| 1125 |
constants.ISPEC_CPU_COUNT: self.be_full.get(constants.BE_VCPUS, None), |
| 1126 |
constants.ISPEC_DISK_COUNT: len(self.disks), |
| 1127 |
constants.ISPEC_DISK_SIZE: [disk[constants.IDISK_SIZE] |
| 1128 |
for disk in self.disks], |
| 1129 |
constants.ISPEC_NIC_COUNT: len(self.nics), |
| 1130 |
constants.ISPEC_SPINDLE_USE: spindle_use, |
| 1131 |
} |
| 1132 |
|
| 1133 |
group_info = self.cfg.GetNodeGroup(pnode.group)
|
| 1134 |
ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster, group_info) |
| 1135 |
res = _ComputeIPolicyInstanceSpecViolation(ipolicy, ispec, |
| 1136 |
self.op.disk_template)
|
| 1137 |
if not self.op.ignore_ipolicy and res: |
| 1138 |
msg = ("Instance allocation to group %s (%s) violates policy: %s" %
|
| 1139 |
(pnode.group, group_info.name, utils.CommaJoin(res))) |
| 1140 |
raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
|
| 1141 |
|
| 1142 |
_CheckHVParams(self, nodenames, self.op.hypervisor, self.op.hvparams) |
| 1143 |
|
| 1144 |
_CheckNodeHasOS(self, pnode.name, self.op.os_type, self.op.force_variant) |
| 1145 |
# check OS parameters (remotely)
|
| 1146 |
_CheckOSParams(self, True, nodenames, self.op.os_type, self.os_full) |
| 1147 |
|
| 1148 |
_CheckNicsBridgesExist(self, self.nics, self.pnode.name) |
| 1149 |
|
| 1150 |
#TODO: _CheckExtParams (remotely)
|
| 1151 |
# Check parameters for extstorage
|
| 1152 |
|
| 1153 |
# memory check on primary node
|
| 1154 |
#TODO(dynmem): use MINMEM for checking
|
| 1155 |
if self.op.start: |
| 1156 |
_CheckNodeFreeMemory(self, self.pnode.name, |
| 1157 |
"creating instance %s" % self.op.instance_name, |
| 1158 |
self.be_full[constants.BE_MAXMEM],
|
| 1159 |
self.op.hypervisor)
|
| 1160 |
|
| 1161 |
self.dry_run_result = list(nodenames) |
| 1162 |
|
| 1163 |
def Exec(self, feedback_fn): |
| 1164 |
"""Create and add the instance to the cluster.
|
| 1165 |
|
| 1166 |
"""
|
| 1167 |
instance = self.op.instance_name
|
| 1168 |
pnode_name = self.pnode.name
|
| 1169 |
|
| 1170 |
assert not (self.owned_locks(locking.LEVEL_NODE_RES) - |
| 1171 |
self.owned_locks(locking.LEVEL_NODE)), \
|
| 1172 |
"Node locks differ from node resource locks"
|
| 1173 |
assert not self.glm.is_owned(locking.LEVEL_NODE_ALLOC) |
| 1174 |
|
| 1175 |
ht_kind = self.op.hypervisor
|
| 1176 |
if ht_kind in constants.HTS_REQ_PORT: |
| 1177 |
network_port = self.cfg.AllocatePort()
|
| 1178 |
else:
|
| 1179 |
network_port = None
|
| 1180 |
|
| 1181 |
# This is ugly but we got a chicken-egg problem here
|
| 1182 |
# We can only take the group disk parameters, as the instance
|
| 1183 |
# has no disks yet (we are generating them right here).
|
| 1184 |
node = self.cfg.GetNodeInfo(pnode_name)
|
| 1185 |
nodegroup = self.cfg.GetNodeGroup(node.group)
|
| 1186 |
disks = _GenerateDiskTemplate(self,
|
| 1187 |
self.op.disk_template,
|
| 1188 |
instance, pnode_name, |
| 1189 |
self.secondaries,
|
| 1190 |
self.disks,
|
| 1191 |
self.instance_file_storage_dir,
|
| 1192 |
self.op.file_driver,
|
| 1193 |
0,
|
| 1194 |
feedback_fn, |
| 1195 |
self.cfg.GetGroupDiskParams(nodegroup))
|
| 1196 |
|
| 1197 |
iobj = objects.Instance(name=instance, os=self.op.os_type,
|
| 1198 |
primary_node=pnode_name, |
| 1199 |
nics=self.nics, disks=disks,
|
| 1200 |
disk_template=self.op.disk_template,
|
| 1201 |
admin_state=constants.ADMINST_DOWN, |
| 1202 |
network_port=network_port, |
| 1203 |
beparams=self.op.beparams,
|
| 1204 |
hvparams=self.op.hvparams,
|
| 1205 |
hypervisor=self.op.hypervisor,
|
| 1206 |
osparams=self.op.osparams,
|
| 1207 |
) |
| 1208 |
|
| 1209 |
if self.op.tags: |
| 1210 |
for tag in self.op.tags: |
| 1211 |
iobj.AddTag(tag) |
| 1212 |
|
| 1213 |
if self.adopt_disks: |
| 1214 |
if self.op.disk_template == constants.DT_PLAIN: |
| 1215 |
# rename LVs to the newly-generated names; we need to construct
|
| 1216 |
# 'fake' LV disks with the old data, plus the new unique_id
|
| 1217 |
tmp_disks = [objects.Disk.FromDict(v.ToDict()) for v in disks] |
| 1218 |
rename_to = [] |
| 1219 |
for t_dsk, a_dsk in zip(tmp_disks, self.disks): |
| 1220 |
rename_to.append(t_dsk.logical_id) |
| 1221 |
t_dsk.logical_id = (t_dsk.logical_id[0], a_dsk[constants.IDISK_ADOPT])
|
| 1222 |
self.cfg.SetDiskID(t_dsk, pnode_name)
|
| 1223 |
result = self.rpc.call_blockdev_rename(pnode_name,
|
| 1224 |
zip(tmp_disks, rename_to))
|
| 1225 |
result.Raise("Failed to rename adoped LVs")
|
| 1226 |
else:
|
| 1227 |
feedback_fn("* creating instance disks...")
|
| 1228 |
try:
|
| 1229 |
_CreateDisks(self, iobj)
|
| 1230 |
except errors.OpExecError:
|
| 1231 |
self.LogWarning("Device creation failed") |
| 1232 |
self.cfg.ReleaseDRBDMinors(instance)
|
| 1233 |
raise
|
| 1234 |
|
| 1235 |
feedback_fn("adding instance %s to cluster config" % instance)
|
| 1236 |
|
| 1237 |
self.cfg.AddInstance(iobj, self.proc.GetECId()) |
| 1238 |
|
| 1239 |
# Declare that we don't want to remove the instance lock anymore, as we've
|
| 1240 |
# added the instance to the config
|
| 1241 |
del self.remove_locks[locking.LEVEL_INSTANCE] |
| 1242 |
|
| 1243 |
if self.op.mode == constants.INSTANCE_IMPORT: |
| 1244 |
# Release unused nodes
|
| 1245 |
_ReleaseLocks(self, locking.LEVEL_NODE, keep=[self.op.src_node]) |
| 1246 |
else:
|
| 1247 |
# Release all nodes
|
| 1248 |
_ReleaseLocks(self, locking.LEVEL_NODE)
|
| 1249 |
|
| 1250 |
disk_abort = False
|
| 1251 |
if not self.adopt_disks and self.cfg.GetClusterInfo().prealloc_wipe_disks: |
| 1252 |
feedback_fn("* wiping instance disks...")
|
| 1253 |
try:
|
| 1254 |
_WipeDisks(self, iobj)
|
| 1255 |
except errors.OpExecError, err:
|
| 1256 |
logging.exception("Wiping disks failed")
|
| 1257 |
self.LogWarning("Wiping instance disks failed (%s)", err) |
| 1258 |
disk_abort = True
|
| 1259 |
|
| 1260 |
if disk_abort:
|
| 1261 |
# Something is already wrong with the disks, don't do anything else
|
| 1262 |
pass
|
| 1263 |
elif self.op.wait_for_sync: |
| 1264 |
disk_abort = not _WaitForSync(self, iobj) |
| 1265 |
elif iobj.disk_template in constants.DTS_INT_MIRROR: |
| 1266 |
# make sure the disks are not degraded (still sync-ing is ok)
|
| 1267 |
feedback_fn("* checking mirrors status")
|
| 1268 |
disk_abort = not _WaitForSync(self, iobj, oneshot=True) |
| 1269 |
else:
|
| 1270 |
disk_abort = False
|
| 1271 |
|
| 1272 |
if disk_abort:
|
| 1273 |
_RemoveDisks(self, iobj)
|
| 1274 |
self.cfg.RemoveInstance(iobj.name)
|
| 1275 |
# Make sure the instance lock gets removed
|
| 1276 |
self.remove_locks[locking.LEVEL_INSTANCE] = iobj.name
|
| 1277 |
raise errors.OpExecError("There are some degraded disks for" |
| 1278 |
" this instance")
|
| 1279 |
|
| 1280 |
# Release all node resource locks
|
| 1281 |
_ReleaseLocks(self, locking.LEVEL_NODE_RES)
|
| 1282 |
|
| 1283 |
if iobj.disk_template != constants.DT_DISKLESS and not self.adopt_disks: |
| 1284 |
# we need to set the disks ID to the primary node, since the
|
| 1285 |
# preceding code might or might have not done it, depending on
|
| 1286 |
# disk template and other options
|
| 1287 |
for disk in iobj.disks: |
| 1288 |
self.cfg.SetDiskID(disk, pnode_name)
|
| 1289 |
if self.op.mode == constants.INSTANCE_CREATE: |
| 1290 |
if not self.op.no_install: |
| 1291 |
pause_sync = (iobj.disk_template in constants.DTS_INT_MIRROR and |
| 1292 |
not self.op.wait_for_sync) |
| 1293 |
if pause_sync:
|
| 1294 |
feedback_fn("* pausing disk sync to install instance OS")
|
| 1295 |
result = self.rpc.call_blockdev_pause_resume_sync(pnode_name,
|
| 1296 |
(iobj.disks, |
| 1297 |
iobj), True)
|
| 1298 |
for idx, success in enumerate(result.payload): |
| 1299 |
if not success: |
| 1300 |
logging.warn("pause-sync of instance %s for disk %d failed",
|
| 1301 |
instance, idx) |
| 1302 |
|
| 1303 |
feedback_fn("* running the instance OS create scripts...")
|
| 1304 |
# FIXME: pass debug option from opcode to backend
|
| 1305 |
os_add_result = \ |
| 1306 |
self.rpc.call_instance_os_add(pnode_name, (iobj, None), False, |
| 1307 |
self.op.debug_level)
|
| 1308 |
if pause_sync:
|
| 1309 |
feedback_fn("* resuming disk sync")
|
| 1310 |
result = self.rpc.call_blockdev_pause_resume_sync(pnode_name,
|
| 1311 |
(iobj.disks, |
| 1312 |
iobj), False)
|
| 1313 |
for idx, success in enumerate(result.payload): |
| 1314 |
if not success: |
| 1315 |
logging.warn("resume-sync of instance %s for disk %d failed",
|
| 1316 |
instance, idx) |
| 1317 |
|
| 1318 |
os_add_result.Raise("Could not add os for instance %s"
|
| 1319 |
" on node %s" % (instance, pnode_name))
|
| 1320 |
|
| 1321 |
else:
|
| 1322 |
if self.op.mode == constants.INSTANCE_IMPORT: |
| 1323 |
feedback_fn("* running the instance OS import scripts...")
|
| 1324 |
|
| 1325 |
transfers = [] |
| 1326 |
|
| 1327 |
for idx, image in enumerate(self.src_images): |
| 1328 |
if not image: |
| 1329 |
continue
|
| 1330 |
|
| 1331 |
# FIXME: pass debug option from opcode to backend
|
| 1332 |
dt = masterd.instance.DiskTransfer("disk/%s" % idx,
|
| 1333 |
constants.IEIO_FILE, (image, ), |
| 1334 |
constants.IEIO_SCRIPT, |
| 1335 |
(iobj.disks[idx], idx), |
| 1336 |
None)
|
| 1337 |
transfers.append(dt) |
| 1338 |
|
| 1339 |
import_result = \ |
| 1340 |
masterd.instance.TransferInstanceData(self, feedback_fn,
|
| 1341 |
self.op.src_node, pnode_name,
|
| 1342 |
self.pnode.secondary_ip,
|
| 1343 |
iobj, transfers) |
| 1344 |
if not compat.all(import_result): |
| 1345 |
self.LogWarning("Some disks for instance %s on node %s were not" |
| 1346 |
" imported successfully" % (instance, pnode_name))
|
| 1347 |
|
| 1348 |
rename_from = self._old_instance_name
|
| 1349 |
|
| 1350 |
elif self.op.mode == constants.INSTANCE_REMOTE_IMPORT: |
| 1351 |
feedback_fn("* preparing remote import...")
|
| 1352 |
# The source cluster will stop the instance before attempting to make
|
| 1353 |
# a connection. In some cases stopping an instance can take a long
|
| 1354 |
# time, hence the shutdown timeout is added to the connection
|
| 1355 |
# timeout.
|
| 1356 |
connect_timeout = (constants.RIE_CONNECT_TIMEOUT + |
| 1357 |
self.op.source_shutdown_timeout)
|
| 1358 |
timeouts = masterd.instance.ImportExportTimeouts(connect_timeout) |
| 1359 |
|
| 1360 |
assert iobj.primary_node == self.pnode.name |
| 1361 |
disk_results = \ |
| 1362 |
masterd.instance.RemoteImport(self, feedback_fn, iobj, self.pnode, |
| 1363 |
self.source_x509_ca,
|
| 1364 |
self._cds, timeouts)
|
| 1365 |
if not compat.all(disk_results): |
| 1366 |
# TODO: Should the instance still be started, even if some disks
|
| 1367 |
# failed to import (valid for local imports, too)?
|
| 1368 |
self.LogWarning("Some disks for instance %s on node %s were not" |
| 1369 |
" imported successfully" % (instance, pnode_name))
|
| 1370 |
|
| 1371 |
rename_from = self.source_instance_name
|
| 1372 |
|
| 1373 |
else:
|
| 1374 |
# also checked in the prereq part
|
| 1375 |
raise errors.ProgrammerError("Unknown OS initialization mode '%s'" |
| 1376 |
% self.op.mode)
|
| 1377 |
|
| 1378 |
# Run rename script on newly imported instance
|
| 1379 |
assert iobj.name == instance
|
| 1380 |
feedback_fn("Running rename script for %s" % instance)
|
| 1381 |
result = self.rpc.call_instance_run_rename(pnode_name, iobj,
|
| 1382 |
rename_from, |
| 1383 |
self.op.debug_level)
|
| 1384 |
if result.fail_msg:
|
| 1385 |
self.LogWarning("Failed to run rename script for %s on node" |
| 1386 |
" %s: %s" % (instance, pnode_name, result.fail_msg))
|
| 1387 |
|
| 1388 |
assert not self.owned_locks(locking.LEVEL_NODE_RES) |
| 1389 |
|
| 1390 |
if self.op.start: |
| 1391 |
iobj.admin_state = constants.ADMINST_UP |
| 1392 |
self.cfg.Update(iobj, feedback_fn)
|
| 1393 |
logging.info("Starting instance %s on node %s", instance, pnode_name)
|
| 1394 |
feedback_fn("* starting instance...")
|
| 1395 |
result = self.rpc.call_instance_start(pnode_name, (iobj, None, None), |
| 1396 |
False, self.op.reason) |
| 1397 |
result.Raise("Could not start instance")
|
| 1398 |
|
| 1399 |
return list(iobj.all_nodes) |
| 1400 |
|
| 1401 |
|
| 1402 |
class LUInstanceRename(LogicalUnit): |
| 1403 |
"""Rename an instance.
|
| 1404 |
|
| 1405 |
"""
|
| 1406 |
HPATH = "instance-rename"
|
| 1407 |
HTYPE = constants.HTYPE_INSTANCE |
| 1408 |
|
| 1409 |
def CheckArguments(self): |
| 1410 |
"""Check arguments.
|
| 1411 |
|
| 1412 |
"""
|
| 1413 |
if self.op.ip_check and not self.op.name_check: |
| 1414 |
# TODO: make the ip check more flexible and not depend on the name check
|
| 1415 |
raise errors.OpPrereqError("IP address check requires a name check", |
| 1416 |
errors.ECODE_INVAL) |
| 1417 |
|
| 1418 |
def BuildHooksEnv(self): |
| 1419 |
"""Build hooks env.
|
| 1420 |
|
| 1421 |
This runs on master, primary and secondary nodes of the instance.
|
| 1422 |
|
| 1423 |
"""
|
| 1424 |
env = _BuildInstanceHookEnvByObject(self, self.instance) |
| 1425 |
env["INSTANCE_NEW_NAME"] = self.op.new_name |
| 1426 |
return env
|
| 1427 |
|
| 1428 |
def BuildHooksNodes(self): |
| 1429 |
"""Build hooks nodes.
|
| 1430 |
|
| 1431 |
"""
|
| 1432 |
nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes) |
| 1433 |
return (nl, nl)
|
| 1434 |
|
| 1435 |
def CheckPrereq(self): |
| 1436 |
"""Check prerequisites.
|
| 1437 |
|
| 1438 |
This checks that the instance is in the cluster and is not running.
|
| 1439 |
|
| 1440 |
"""
|
| 1441 |
self.op.instance_name = _ExpandInstanceName(self.cfg, |
| 1442 |
self.op.instance_name)
|
| 1443 |
instance = self.cfg.GetInstanceInfo(self.op.instance_name) |
| 1444 |
assert instance is not None |
| 1445 |
_CheckNodeOnline(self, instance.primary_node)
|
| 1446 |
_CheckInstanceState(self, instance, INSTANCE_NOT_RUNNING,
|
| 1447 |
msg="cannot rename")
|
| 1448 |
self.instance = instance
|
| 1449 |
|
| 1450 |
new_name = self.op.new_name
|
| 1451 |
if self.op.name_check: |
| 1452 |
hostname = _CheckHostnameSane(self, new_name)
|
| 1453 |
new_name = self.op.new_name = hostname.name
|
| 1454 |
if (self.op.ip_check and |
| 1455 |
netutils.TcpPing(hostname.ip, constants.DEFAULT_NODED_PORT)): |
| 1456 |
raise errors.OpPrereqError("IP %s of instance %s already in use" % |
| 1457 |
(hostname.ip, new_name), |
| 1458 |
errors.ECODE_NOTUNIQUE) |
| 1459 |
|
| 1460 |
instance_list = self.cfg.GetInstanceList()
|
| 1461 |
if new_name in instance_list and new_name != instance.name: |
| 1462 |
raise errors.OpPrereqError("Instance '%s' is already in the cluster" % |
| 1463 |
new_name, errors.ECODE_EXISTS) |
| 1464 |
|
| 1465 |
def Exec(self, feedback_fn): |
| 1466 |
"""Rename the instance.
|
| 1467 |
|
| 1468 |
"""
|
| 1469 |
inst = self.instance
|
| 1470 |
old_name = inst.name |
| 1471 |
|
| 1472 |
rename_file_storage = False
|
| 1473 |
if (inst.disk_template in constants.DTS_FILEBASED and |
| 1474 |
self.op.new_name != inst.name):
|
| 1475 |
old_file_storage_dir = os.path.dirname(inst.disks[0].logical_id[1]) |
| 1476 |
rename_file_storage = True
|
| 1477 |
|
| 1478 |
self.cfg.RenameInstance(inst.name, self.op.new_name) |
| 1479 |
# Change the instance lock. This is definitely safe while we hold the BGL.
|
| 1480 |
# Otherwise the new lock would have to be added in acquired mode.
|
| 1481 |
assert self.REQ_BGL |
| 1482 |
assert locking.BGL in self.owned_locks(locking.LEVEL_CLUSTER) |
| 1483 |
self.glm.remove(locking.LEVEL_INSTANCE, old_name)
|
| 1484 |
self.glm.add(locking.LEVEL_INSTANCE, self.op.new_name) |
| 1485 |
|
| 1486 |
# re-read the instance from the configuration after rename
|
| 1487 |
inst = self.cfg.GetInstanceInfo(self.op.new_name) |
| 1488 |
|
| 1489 |
if rename_file_storage:
|
| 1490 |
new_file_storage_dir = os.path.dirname(inst.disks[0].logical_id[1]) |
| 1491 |
result = self.rpc.call_file_storage_dir_rename(inst.primary_node,
|
| 1492 |
old_file_storage_dir, |
| 1493 |
new_file_storage_dir) |
| 1494 |
result.Raise("Could not rename on node %s directory '%s' to '%s'"
|
| 1495 |
" (but the instance has been renamed in Ganeti)" %
|
| 1496 |
(inst.primary_node, old_file_storage_dir, |
| 1497 |
new_file_storage_dir)) |
| 1498 |
|
| 1499 |
_StartInstanceDisks(self, inst, None) |
| 1500 |
# update info on disks
|
| 1501 |
info = _GetInstanceInfoText(inst) |
| 1502 |
for (idx, disk) in enumerate(inst.disks): |
| 1503 |
for node in inst.all_nodes: |
| 1504 |
self.cfg.SetDiskID(disk, node)
|
| 1505 |
result = self.rpc.call_blockdev_setinfo(node, disk, info)
|
| 1506 |
if result.fail_msg:
|
| 1507 |
self.LogWarning("Error setting info on node %s for disk %s: %s", |
| 1508 |
node, idx, result.fail_msg) |
| 1509 |
try:
|
| 1510 |
result = self.rpc.call_instance_run_rename(inst.primary_node, inst,
|
| 1511 |
old_name, self.op.debug_level)
|
| 1512 |
msg = result.fail_msg |
| 1513 |
if msg:
|
| 1514 |
msg = ("Could not run OS rename script for instance %s on node %s"
|
| 1515 |
" (but the instance has been renamed in Ganeti): %s" %
|
| 1516 |
(inst.name, inst.primary_node, msg)) |
| 1517 |
self.LogWarning(msg)
|
| 1518 |
finally:
|
| 1519 |
_ShutdownInstanceDisks(self, inst)
|
| 1520 |
|
| 1521 |
return inst.name
|
| 1522 |
|
| 1523 |
|
| 1524 |
class LUInstanceRemove(LogicalUnit): |
| 1525 |
"""Remove an instance.
|
| 1526 |
|
| 1527 |
"""
|
| 1528 |
HPATH = "instance-remove"
|
| 1529 |
HTYPE = constants.HTYPE_INSTANCE |
| 1530 |
REQ_BGL = False
|
| 1531 |
|
| 1532 |
def ExpandNames(self): |
| 1533 |
self._ExpandAndLockInstance()
|
| 1534 |
self.needed_locks[locking.LEVEL_NODE] = []
|
| 1535 |
self.needed_locks[locking.LEVEL_NODE_RES] = []
|
| 1536 |
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
|
| 1537 |
|
| 1538 |
def DeclareLocks(self, level): |
| 1539 |
if level == locking.LEVEL_NODE:
|
| 1540 |
self._LockInstancesNodes()
|
| 1541 |
elif level == locking.LEVEL_NODE_RES:
|
| 1542 |
# Copy node locks
|
| 1543 |
self.needed_locks[locking.LEVEL_NODE_RES] = \
|
| 1544 |
_CopyLockList(self.needed_locks[locking.LEVEL_NODE])
|
| 1545 |
|
| 1546 |
def BuildHooksEnv(self): |
| 1547 |
"""Build hooks env.
|
| 1548 |
|
| 1549 |
This runs on master, primary and secondary nodes of the instance.
|
| 1550 |
|
| 1551 |
"""
|
| 1552 |
env = _BuildInstanceHookEnvByObject(self, self.instance) |
| 1553 |
env["SHUTDOWN_TIMEOUT"] = self.op.shutdown_timeout |
| 1554 |
return env
|
| 1555 |
|
| 1556 |
def BuildHooksNodes(self): |
| 1557 |
"""Build hooks nodes.
|
| 1558 |
|
| 1559 |
"""
|
| 1560 |
nl = [self.cfg.GetMasterNode()]
|
| 1561 |
nl_post = list(self.instance.all_nodes) + nl |
| 1562 |
return (nl, nl_post)
|
| 1563 |
|
| 1564 |
def CheckPrereq(self): |
| 1565 |
"""Check prerequisites.
|
| 1566 |
|
| 1567 |
This checks that the instance is in the cluster.
|
| 1568 |
|
| 1569 |
"""
|
| 1570 |
self.instance = self.cfg.GetInstanceInfo(self.op.instance_name) |
| 1571 |
assert self.instance is not None, \ |
| 1572 |
"Cannot retrieve locked instance %s" % self.op.instance_name |
| 1573 |
|
| 1574 |
def Exec(self, feedback_fn): |
| 1575 |
"""Remove the instance.
|
| 1576 |
|
| 1577 |
"""
|
| 1578 |
instance = self.instance
|
| 1579 |
logging.info("Shutting down instance %s on node %s",
|
| 1580 |
instance.name, instance.primary_node) |
| 1581 |
|
| 1582 |
result = self.rpc.call_instance_shutdown(instance.primary_node, instance,
|
| 1583 |
self.op.shutdown_timeout,
|
| 1584 |
self.op.reason)
|
| 1585 |
msg = result.fail_msg |
| 1586 |
if msg:
|
| 1587 |
if self.op.ignore_failures: |
| 1588 |
feedback_fn("Warning: can't shutdown instance: %s" % msg)
|
| 1589 |
else:
|
| 1590 |
raise errors.OpExecError("Could not shutdown instance %s on" |
| 1591 |
" node %s: %s" %
|
| 1592 |
(instance.name, instance.primary_node, msg)) |
| 1593 |
|
| 1594 |
assert (self.owned_locks(locking.LEVEL_NODE) == |
| 1595 |
self.owned_locks(locking.LEVEL_NODE_RES))
|
| 1596 |
assert not (set(instance.all_nodes) - |
| 1597 |
self.owned_locks(locking.LEVEL_NODE)), \
|
| 1598 |
"Not owning correct locks"
|
| 1599 |
|
| 1600 |
_RemoveInstance(self, feedback_fn, instance, self.op.ignore_failures) |
| 1601 |
|
| 1602 |
|
| 1603 |
class LUInstanceMove(LogicalUnit): |
| 1604 |
"""Move an instance by data-copying.
|
| 1605 |
|
| 1606 |
"""
|
| 1607 |
HPATH = "instance-move"
|
| 1608 |
HTYPE = constants.HTYPE_INSTANCE |
| 1609 |
REQ_BGL = False
|
| 1610 |
|
| 1611 |
def ExpandNames(self): |
| 1612 |
self._ExpandAndLockInstance()
|
| 1613 |
target_node = _ExpandNodeName(self.cfg, self.op.target_node) |
| 1614 |
self.op.target_node = target_node
|
| 1615 |
self.needed_locks[locking.LEVEL_NODE] = [target_node]
|
| 1616 |
self.needed_locks[locking.LEVEL_NODE_RES] = []
|
| 1617 |
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
|
| 1618 |
|
| 1619 |
def DeclareLocks(self, level): |
| 1620 |
if level == locking.LEVEL_NODE:
|
| 1621 |
self._LockInstancesNodes(primary_only=True) |
| 1622 |
elif level == locking.LEVEL_NODE_RES:
|
| 1623 |
# Copy node locks
|
| 1624 |
self.needed_locks[locking.LEVEL_NODE_RES] = \
|
| 1625 |
_CopyLockList(self.needed_locks[locking.LEVEL_NODE])
|
| 1626 |
|
| 1627 |
def BuildHooksEnv(self): |
| 1628 |
"""Build hooks env.
|
| 1629 |
|
| 1630 |
This runs on master, primary and secondary nodes of the instance.
|
| 1631 |
|
| 1632 |
"""
|
| 1633 |
env = {
|
| 1634 |
"TARGET_NODE": self.op.target_node, |
| 1635 |
"SHUTDOWN_TIMEOUT": self.op.shutdown_timeout, |
| 1636 |
} |
| 1637 |
env.update(_BuildInstanceHookEnvByObject(self, self.instance)) |
| 1638 |
return env
|
| 1639 |
|
| 1640 |
def BuildHooksNodes(self): |
| 1641 |
"""Build hooks nodes.
|
| 1642 |
|
| 1643 |
"""
|
| 1644 |
nl = [ |
| 1645 |
self.cfg.GetMasterNode(),
|
| 1646 |
self.instance.primary_node,
|
| 1647 |
self.op.target_node,
|
| 1648 |
] |
| 1649 |
return (nl, nl)
|
| 1650 |
|
| 1651 |
def CheckPrereq(self): |
| 1652 |
"""Check prerequisites.
|
| 1653 |
|
| 1654 |
This checks that the instance is in the cluster.
|
| 1655 |
|
| 1656 |
"""
|
| 1657 |
self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name) |
| 1658 |
assert self.instance is not None, \ |
| 1659 |
"Cannot retrieve locked instance %s" % self.op.instance_name |
| 1660 |
|
| 1661 |
if instance.disk_template not in constants.DTS_COPYABLE: |
| 1662 |
raise errors.OpPrereqError("Disk template %s not suitable for copying" % |
| 1663 |
instance.disk_template, errors.ECODE_STATE) |
| 1664 |
|
| 1665 |
node = self.cfg.GetNodeInfo(self.op.target_node) |
| 1666 |
assert node is not None, \ |
| 1667 |
"Cannot retrieve locked node %s" % self.op.target_node |
| 1668 |
|
| 1669 |
self.target_node = target_node = node.name
|
| 1670 |
|
| 1671 |
if target_node == instance.primary_node:
|
| 1672 |
raise errors.OpPrereqError("Instance %s is already on the node %s" % |
| 1673 |
(instance.name, target_node), |
| 1674 |
errors.ECODE_STATE) |
| 1675 |
|
| 1676 |
bep = self.cfg.GetClusterInfo().FillBE(instance)
|
| 1677 |
|
| 1678 |
for idx, dsk in enumerate(instance.disks): |
| 1679 |
if dsk.dev_type not in (constants.LD_LV, constants.LD_FILE): |
| 1680 |
raise errors.OpPrereqError("Instance disk %d has a complex layout," |
| 1681 |
" cannot copy" % idx, errors.ECODE_STATE)
|
| 1682 |
|
| 1683 |
_CheckNodeOnline(self, target_node)
|
| 1684 |
_CheckNodeNotDrained(self, target_node)
|
| 1685 |
_CheckNodeVmCapable(self, target_node)
|
| 1686 |
cluster = self.cfg.GetClusterInfo()
|
| 1687 |
group_info = self.cfg.GetNodeGroup(node.group)
|
| 1688 |
ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster, group_info) |
| 1689 |
_CheckTargetNodeIPolicy(self, ipolicy, instance, node, self.cfg, |
| 1690 |
ignore=self.op.ignore_ipolicy)
|
| 1691 |
|
| 1692 |
if instance.admin_state == constants.ADMINST_UP:
|
| 1693 |
# check memory requirements on the secondary node
|
| 1694 |
_CheckNodeFreeMemory(self, target_node,
|
| 1695 |
"failing over instance %s" %
|
| 1696 |
instance.name, bep[constants.BE_MAXMEM], |
| 1697 |
instance.hypervisor) |
| 1698 |
else:
|
| 1699 |
self.LogInfo("Not checking memory on the secondary node as" |
| 1700 |
" instance will not be started")
|
| 1701 |
|
| 1702 |
# check bridge existance
|
| 1703 |
_CheckInstanceBridgesExist(self, instance, node=target_node)
|
| 1704 |
|
| 1705 |
def Exec(self, feedback_fn): |
| 1706 |
"""Move an instance.
|
| 1707 |
|
| 1708 |
The move is done by shutting it down on its present node, copying
|
| 1709 |
the data over (slow) and starting it on the new node.
|
| 1710 |
|
| 1711 |
"""
|
| 1712 |
instance = self.instance
|
| 1713 |
|
| 1714 |
source_node = instance.primary_node |
| 1715 |
target_node = self.target_node
|
| 1716 |
|
| 1717 |
self.LogInfo("Shutting down instance %s on source node %s", |
| 1718 |
instance.name, source_node) |
| 1719 |
|
| 1720 |
assert (self.owned_locks(locking.LEVEL_NODE) == |
| 1721 |
self.owned_locks(locking.LEVEL_NODE_RES))
|
| 1722 |
|
| 1723 |
result = self.rpc.call_instance_shutdown(source_node, instance,
|
| 1724 |
self.op.shutdown_timeout,
|
| 1725 |
self.op.reason)
|
| 1726 |
msg = result.fail_msg |
| 1727 |
if msg:
|
| 1728 |
if self.op.ignore_consistency: |
| 1729 |
self.LogWarning("Could not shutdown instance %s on node %s." |
| 1730 |
" Proceeding anyway. Please make sure node"
|
| 1731 |
" %s is down. Error details: %s",
|
| 1732 |
instance.name, source_node, source_node, msg) |
| 1733 |
else:
|
| 1734 |
raise errors.OpExecError("Could not shutdown instance %s on" |
| 1735 |
" node %s: %s" %
|
| 1736 |
(instance.name, source_node, msg)) |
| 1737 |
|
| 1738 |
# create the target disks
|
| 1739 |
try:
|
| 1740 |
_CreateDisks(self, instance, target_node=target_node)
|
| 1741 |
except errors.OpExecError:
|
| 1742 |
self.LogWarning("Device creation failed") |
| 1743 |
self.cfg.ReleaseDRBDMinors(instance.name)
|
| 1744 |
raise
|
| 1745 |
|
| 1746 |
cluster_name = self.cfg.GetClusterInfo().cluster_name
|
| 1747 |
|
| 1748 |
errs = [] |
| 1749 |
# activate, get path, copy the data over
|
| 1750 |
for idx, disk in enumerate(instance.disks): |
| 1751 |
self.LogInfo("Copying data for disk %d", idx) |
| 1752 |
result = self.rpc.call_blockdev_assemble(target_node, (disk, instance),
|
| 1753 |
instance.name, True, idx)
|
| 1754 |
if result.fail_msg:
|
| 1755 |
self.LogWarning("Can't assemble newly created disk %d: %s", |
| 1756 |
idx, result.fail_msg) |
| 1757 |
errs.append(result.fail_msg) |
| 1758 |
break
|
| 1759 |
dev_path = result.payload |
| 1760 |
result = self.rpc.call_blockdev_export(source_node, (disk, instance),
|
| 1761 |
target_node, dev_path, |
| 1762 |
cluster_name) |
| 1763 |
if result.fail_msg:
|
| 1764 |
self.LogWarning("Can't copy data over for disk %d: %s", |
| 1765 |
idx, result.fail_msg) |
| 1766 |
errs.append(result.fail_msg) |
| 1767 |
break
|
| 1768 |
|
| 1769 |
if errs:
|
| 1770 |
self.LogWarning("Some disks failed to copy, aborting") |
| 1771 |
try:
|
| 1772 |
_RemoveDisks(self, instance, target_node=target_node)
|
| 1773 |
finally:
|
| 1774 |
self.cfg.ReleaseDRBDMinors(instance.name)
|
| 1775 |
raise errors.OpExecError("Errors during disk copy: %s" % |
| 1776 |
(",".join(errs),))
|
| 1777 |
|
| 1778 |
instance.primary_node = target_node |
| 1779 |
self.cfg.Update(instance, feedback_fn)
|
| 1780 |
|
| 1781 |
self.LogInfo("Removing the disks on the original node") |
| 1782 |
_RemoveDisks(self, instance, target_node=source_node)
|
| 1783 |
|
| 1784 |
# Only start the instance if it's marked as up
|
| 1785 |
if instance.admin_state == constants.ADMINST_UP:
|
| 1786 |
self.LogInfo("Starting instance %s on node %s", |
| 1787 |
instance.name, target_node) |
| 1788 |
|
| 1789 |
disks_ok, _ = _AssembleInstanceDisks(self, instance,
|
| 1790 |
ignore_secondaries=True)
|
| 1791 |
if not disks_ok: |
| 1792 |
_ShutdownInstanceDisks(self, instance)
|
| 1793 |
raise errors.OpExecError("Can't activate the instance's disks") |
| 1794 |
|
| 1795 |
result = self.rpc.call_instance_start(target_node,
|
| 1796 |
(instance, None, None), False, |
| 1797 |
self.op.reason)
|
| 1798 |
msg = result.fail_msg |
| 1799 |
if msg:
|
| 1800 |
_ShutdownInstanceDisks(self, instance)
|
| 1801 |
raise errors.OpExecError("Could not start instance %s on node %s: %s" % |
| 1802 |
(instance.name, target_node, msg)) |
| 1803 |
|
| 1804 |
|
| 1805 |
class LUInstanceMultiAlloc(NoHooksLU): |
| 1806 |
"""Allocates multiple instances at the same time.
|
| 1807 |
|
| 1808 |
"""
|
| 1809 |
REQ_BGL = False
|
| 1810 |
|
| 1811 |
def CheckArguments(self): |
| 1812 |
"""Check arguments.
|
| 1813 |
|
| 1814 |
"""
|
| 1815 |
nodes = [] |
| 1816 |
for inst in self.op.instances: |
| 1817 |
if inst.iallocator is not None: |
| 1818 |
raise errors.OpPrereqError("iallocator are not allowed to be set on" |
| 1819 |
" instance objects", errors.ECODE_INVAL)
|
| 1820 |
nodes.append(bool(inst.pnode))
|
| 1821 |
if inst.disk_template in constants.DTS_INT_MIRROR: |
| 1822 |
nodes.append(bool(inst.snode))
|
| 1823 |
|
| 1824 |
has_nodes = compat.any(nodes) |
| 1825 |
if compat.all(nodes) ^ has_nodes:
|
| 1826 |
raise errors.OpPrereqError("There are instance objects providing" |
| 1827 |
" pnode/snode while others do not",
|
| 1828 |
errors.ECODE_INVAL) |
| 1829 |
|
| 1830 |
if self.op.iallocator is None: |
| 1831 |
default_iallocator = self.cfg.GetDefaultIAllocator()
|
| 1832 |
if default_iallocator and has_nodes: |
| 1833 |
self.op.iallocator = default_iallocator
|
| 1834 |
else:
|
| 1835 |
raise errors.OpPrereqError("No iallocator or nodes on the instances" |
| 1836 |
" given and no cluster-wide default"
|
| 1837 |
" iallocator found; please specify either"
|
| 1838 |
" an iallocator or nodes on the instances"
|
| 1839 |
" or set a cluster-wide default iallocator",
|
| 1840 |
errors.ECODE_INVAL) |
| 1841 |
|
| 1842 |
_CheckOpportunisticLocking(self.op)
|
| 1843 |
|
| 1844 |
dups = utils.FindDuplicates([op.instance_name for op in self.op.instances]) |
| 1845 |
if dups:
|
| 1846 |
raise errors.OpPrereqError("There are duplicate instance names: %s" % |
| 1847 |
utils.CommaJoin(dups), errors.ECODE_INVAL) |
| 1848 |
|
| 1849 |
def ExpandNames(self): |
| 1850 |
"""Calculate the locks.
|
| 1851 |
|
| 1852 |
"""
|
| 1853 |
self.share_locks = _ShareAll()
|
| 1854 |
self.needed_locks = {
|
| 1855 |
# iallocator will select nodes and even if no iallocator is used,
|
| 1856 |
# collisions with LUInstanceCreate should be avoided
|
| 1857 |
locking.LEVEL_NODE_ALLOC: locking.ALL_SET, |
| 1858 |
} |
| 1859 |
|
| 1860 |
if self.op.iallocator: |
| 1861 |
self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
|
| 1862 |
self.needed_locks[locking.LEVEL_NODE_RES] = locking.ALL_SET
|
| 1863 |
|
| 1864 |
if self.op.opportunistic_locking: |
| 1865 |
self.opportunistic_locks[locking.LEVEL_NODE] = True |
| 1866 |
self.opportunistic_locks[locking.LEVEL_NODE_RES] = True |
| 1867 |
else:
|
| 1868 |
nodeslist = [] |
| 1869 |
for inst in self.op.instances: |
| 1870 |
inst.pnode = _ExpandNodeName(self.cfg, inst.pnode)
|
| 1871 |
nodeslist.append(inst.pnode) |
| 1872 |
if inst.snode is not None: |
| 1873 |
inst.snode = _ExpandNodeName(self.cfg, inst.snode)
|
| 1874 |
nodeslist.append(inst.snode) |
| 1875 |
|
| 1876 |
self.needed_locks[locking.LEVEL_NODE] = nodeslist
|
| 1877 |
# Lock resources of instance's primary and secondary nodes (copy to
|
| 1878 |
# prevent accidential modification)
|
| 1879 |
self.needed_locks[locking.LEVEL_NODE_RES] = list(nodeslist) |
| 1880 |
|
| 1881 |
def CheckPrereq(self): |
| 1882 |
"""Check prerequisite.
|
| 1883 |
|
| 1884 |
"""
|
| 1885 |
cluster = self.cfg.GetClusterInfo()
|
| 1886 |
default_vg = self.cfg.GetVGName()
|
| 1887 |
ec_id = self.proc.GetECId()
|
| 1888 |
|
| 1889 |
if self.op.opportunistic_locking: |
| 1890 |
# Only consider nodes for which a lock is held
|
| 1891 |
node_whitelist = list(self.owned_locks(locking.LEVEL_NODE)) |
| 1892 |
else:
|
| 1893 |
node_whitelist = None
|
| 1894 |
|
| 1895 |
insts = [_CreateInstanceAllocRequest(op, _ComputeDisks(op, default_vg), |
| 1896 |
_ComputeNics(op, cluster, None,
|
| 1897 |
self.cfg, ec_id),
|
| 1898 |
_ComputeFullBeParams(op, cluster), |
| 1899 |
node_whitelist) |
| 1900 |
for op in self.op.instances] |
| 1901 |
|
| 1902 |
req = iallocator.IAReqMultiInstanceAlloc(instances=insts) |
| 1903 |
ial = iallocator.IAllocator(self.cfg, self.rpc, req) |
| 1904 |
|
| 1905 |
ial.Run(self.op.iallocator)
|
| 1906 |
|
| 1907 |
if not ial.success: |
| 1908 |
raise errors.OpPrereqError("Can't compute nodes using" |
| 1909 |
" iallocator '%s': %s" %
|
| 1910 |
(self.op.iallocator, ial.info),
|
| 1911 |
errors.ECODE_NORES) |
| 1912 |
|
| 1913 |
self.ia_result = ial.result
|
| 1914 |
|
| 1915 |
if self.op.dry_run: |
| 1916 |
self.dry_run_result = objects.FillDict(self._ConstructPartialResult(), { |
| 1917 |
constants.JOB_IDS_KEY: [], |
| 1918 |
}) |
| 1919 |
|
| 1920 |
def _ConstructPartialResult(self): |
| 1921 |
"""Contructs the partial result.
|
| 1922 |
|
| 1923 |
"""
|
| 1924 |
(allocatable, failed) = self.ia_result
|
| 1925 |
return {
|
| 1926 |
opcodes.OpInstanceMultiAlloc.ALLOCATABLE_KEY: |
| 1927 |
map(compat.fst, allocatable),
|
| 1928 |
opcodes.OpInstanceMultiAlloc.FAILED_KEY: failed, |
| 1929 |
} |
| 1930 |
|
| 1931 |
def Exec(self, feedback_fn): |
| 1932 |
"""Executes the opcode.
|
| 1933 |
|
| 1934 |
"""
|
| 1935 |
op2inst = dict((op.instance_name, op) for op in self.op.instances) |
| 1936 |
(allocatable, failed) = self.ia_result
|
| 1937 |
|
| 1938 |
jobs = [] |
| 1939 |
for (name, nodes) in allocatable: |
| 1940 |
op = op2inst.pop(name) |
| 1941 |
|
| 1942 |
if len(nodes) > 1: |
| 1943 |
(op.pnode, op.snode) = nodes |
| 1944 |
else:
|
| 1945 |
(op.pnode,) = nodes |
| 1946 |
|
| 1947 |
jobs.append([op]) |
| 1948 |
|
| 1949 |
missing = set(op2inst.keys()) - set(failed) |
| 1950 |
assert not missing, \ |
| 1951 |
"Iallocator did return incomplete result: %s" % utils.CommaJoin(missing)
|
| 1952 |
|
| 1953 |
return ResultWithJobs(jobs, **self._ConstructPartialResult()) |
| 1954 |
|
| 1955 |
|
| 1956 |
class _InstNicModPrivate: |
| 1957 |
"""Data structure for network interface modifications.
|
| 1958 |
|
| 1959 |
Used by L{LUInstanceSetParams}.
|
| 1960 |
|
| 1961 |
"""
|
| 1962 |
def __init__(self): |
| 1963 |
self.params = None |
| 1964 |
self.filled = None |
| 1965 |
|
| 1966 |
|
| 1967 |
def PrepareContainerMods(mods, private_fn): |
| 1968 |
"""Prepares a list of container modifications by adding a private data field.
|
| 1969 |
|
| 1970 |
@type mods: list of tuples; (operation, index, parameters)
|
| 1971 |
@param mods: List of modifications
|
| 1972 |
@type private_fn: callable or None
|
| 1973 |
@param private_fn: Callable for constructing a private data field for a
|
| 1974 |
modification
|
| 1975 |
@rtype: list
|
| 1976 |
|
| 1977 |
"""
|
| 1978 |
if private_fn is None: |
| 1979 |
fn = lambda: None |
| 1980 |
else:
|
| 1981 |
fn = private_fn |
| 1982 |
|
| 1983 |
return [(op, idx, params, fn()) for (op, idx, params) in mods] |
| 1984 |
|
| 1985 |
|
| 1986 |
def _CheckNodesPhysicalCPUs(lu, nodenames, requested, hypervisor_name): |
| 1987 |
"""Checks if nodes have enough physical CPUs
|
| 1988 |
|
| 1989 |
This function checks if all given nodes have the needed number of
|
| 1990 |
physical CPUs. In case any node has less CPUs or we cannot get the
|
| 1991 |
information from the node, this function raises an OpPrereqError
|
| 1992 |
exception.
|
| 1993 |
|
| 1994 |
@type lu: C{LogicalUnit}
|
| 1995 |
@param lu: a logical unit from which we get configuration data
|
| 1996 |
@type nodenames: C{list}
|
| 1997 |
@param nodenames: the list of node names to check
|
| 1998 |
@type requested: C{int}
|
| 1999 |
@param requested: the minimum acceptable number of physical CPUs
|
| 2000 |
@raise errors.OpPrereqError: if the node doesn't have enough CPUs,
|
| 2001 |
or we cannot check the node
|
| 2002 |
|
| 2003 |
"""
|
| 2004 |
nodeinfo = lu.rpc.call_node_info(nodenames, None, [hypervisor_name], None) |
| 2005 |
for node in nodenames: |
| 2006 |
info = nodeinfo[node] |
| 2007 |
info.Raise("Cannot get current information from node %s" % node,
|
| 2008 |
prereq=True, ecode=errors.ECODE_ENVIRON)
|
| 2009 |
(_, _, (hv_info, )) = info.payload |
| 2010 |
num_cpus = hv_info.get("cpu_total", None) |
| 2011 |
if not isinstance(num_cpus, int): |
| 2012 |
raise errors.OpPrereqError("Can't compute the number of physical CPUs" |
| 2013 |
" on node %s, result was '%s'" %
|
| 2014 |
(node, num_cpus), errors.ECODE_ENVIRON) |
| 2015 |
if requested > num_cpus:
|
| 2016 |
raise errors.OpPrereqError("Node %s has %s physical CPUs, but %s are " |
| 2017 |
"required" % (node, num_cpus, requested),
|
| 2018 |
errors.ECODE_NORES) |
| 2019 |
|
| 2020 |
|
| 2021 |
def GetItemFromContainer(identifier, kind, container): |
| 2022 |
"""Return the item refered by the identifier.
|
| 2023 |
|
| 2024 |
@type identifier: string
|
| 2025 |
@param identifier: Item index or name or UUID
|
| 2026 |
@type kind: string
|
| 2027 |
@param kind: One-word item description
|
| 2028 |
@type container: list
|
| 2029 |
@param container: Container to get the item from
|
| 2030 |
|
| 2031 |
"""
|
| 2032 |
# Index
|
| 2033 |
try:
|
| 2034 |
idx = int(identifier)
|
| 2035 |
if idx == -1: |
| 2036 |
# Append
|
| 2037 |
absidx = len(container) - 1 |
| 2038 |
elif idx < 0: |
| 2039 |
raise IndexError("Not accepting negative indices other than -1") |
| 2040 |
elif idx > len(container): |
| 2041 |
raise IndexError("Got %s index %s, but there are only %s" % |
| 2042 |
(kind, idx, len(container)))
|
| 2043 |
else:
|
| 2044 |
absidx = idx |
| 2045 |
return (absidx, container[idx])
|
| 2046 |
except ValueError: |
| 2047 |
pass
|
| 2048 |
|
| 2049 |
for idx, item in enumerate(container): |
| 2050 |
if item.uuid == identifier or item.name == identifier: |
| 2051 |
return (idx, item)
|
| 2052 |
|
| 2053 |
raise errors.OpPrereqError("Cannot find %s with identifier %s" % |
| 2054 |
(kind, identifier), errors.ECODE_NOENT) |
| 2055 |
|
| 2056 |
|
| 2057 |
def ApplyContainerMods(kind, container, chgdesc, mods, |
| 2058 |
create_fn, modify_fn, remove_fn): |
| 2059 |
"""Applies descriptions in C{mods} to C{container}.
|
| 2060 |
|
| 2061 |
@type kind: string
|
| 2062 |
@param kind: One-word item description
|
| 2063 |
@type container: list
|
| 2064 |
@param container: Container to modify
|
| 2065 |
@type chgdesc: None or list
|
| 2066 |
@param chgdesc: List of applied changes
|
| 2067 |
@type mods: list
|
| 2068 |
@param mods: Modifications as returned by L{PrepareContainerMods}
|
| 2069 |
@type create_fn: callable
|
| 2070 |
@param create_fn: Callback for creating a new item (L{constants.DDM_ADD});
|
| 2071 |
receives absolute item index, parameters and private data object as added
|
| 2072 |
by L{PrepareContainerMods}, returns tuple containing new item and changes
|
| 2073 |
as list
|
| 2074 |
@type modify_fn: callable
|
| 2075 |
@param modify_fn: Callback for modifying an existing item
|
| 2076 |
(L{constants.DDM_MODIFY}); receives absolute item index, item, parameters
|
| 2077 |
and private data object as added by L{PrepareContainerMods}, returns
|
| 2078 |
changes as list
|
| 2079 |
@type remove_fn: callable
|
| 2080 |
@param remove_fn: Callback on removing item; receives absolute item index,
|
| 2081 |
item and private data object as added by L{PrepareContainerMods}
|
| 2082 |
|
| 2083 |
"""
|
| 2084 |
for (op, identifier, params, private) in mods: |
| 2085 |
changes = None
|
| 2086 |
|
| 2087 |
if op == constants.DDM_ADD:
|
| 2088 |
# Calculate where item will be added
|
| 2089 |
# When adding an item, identifier can only be an index
|
| 2090 |
try:
|
| 2091 |
idx = int(identifier)
|
| 2092 |
except ValueError: |
| 2093 |
raise errors.OpPrereqError("Only possitive integer or -1 is accepted as" |
| 2094 |
" identifier for %s" % constants.DDM_ADD,
|
| 2095 |
errors.ECODE_INVAL) |
| 2096 |
if idx == -1: |
| 2097 |
addidx = len(container)
|
| 2098 |
else:
|
| 2099 |
if idx < 0: |
| 2100 |
raise IndexError("Not accepting negative indices other than -1") |
| 2101 |
elif idx > len(container): |
| 2102 |
raise IndexError("Got %s index %s, but there are only %s" % |
| 2103 |
(kind, idx, len(container)))
|
| 2104 |
addidx = idx |
| 2105 |
|
| 2106 |
if create_fn is None: |
| 2107 |
item = params |
| 2108 |
else:
|
| 2109 |
(item, changes) = create_fn(addidx, params, private) |
| 2110 |
|
| 2111 |
if idx == -1: |
| 2112 |
container.append(item) |
| 2113 |
else:
|
| 2114 |
assert idx >= 0 |
| 2115 |
assert idx <= len(container) |
| 2116 |
# list.insert does so before the specified index
|
| 2117 |
container.insert(idx, item) |
| 2118 |
else:
|
| 2119 |
# Retrieve existing item
|
| 2120 |
(absidx, item) = GetItemFromContainer(identifier, kind, container) |
| 2121 |
|
| 2122 |
if op == constants.DDM_REMOVE:
|
| 2123 |
assert not params |
| 2124 |
|
| 2125 |
if remove_fn is not None: |
| 2126 |
remove_fn(absidx, item, private) |
| 2127 |
|
| 2128 |
changes = [("%s/%s" % (kind, absidx), "remove")] |
| 2129 |
|
| 2130 |
assert container[absidx] == item
|
| 2131 |
del container[absidx]
|
| 2132 |
elif op == constants.DDM_MODIFY:
|
| 2133 |
if modify_fn is not None: |
| 2134 |
changes = modify_fn(absidx, item, params, private) |
| 2135 |
else:
|
| 2136 |
raise errors.ProgrammerError("Unhandled operation '%s'" % op) |
| 2137 |
|
| 2138 |
assert _TApplyContModsCbChanges(changes)
|
| 2139 |
|
| 2140 |
if not (chgdesc is None or changes is None): |
| 2141 |
chgdesc.extend(changes) |
| 2142 |
|
| 2143 |
|
| 2144 |
def _UpdateIvNames(base_index, disks): |
| 2145 |
"""Updates the C{iv_name} attribute of disks.
|
| 2146 |
|
| 2147 |
@type disks: list of L{objects.Disk}
|
| 2148 |
|
| 2149 |
"""
|
| 2150 |
for (idx, disk) in enumerate(disks): |
| 2151 |
disk.iv_name = "disk/%s" % (base_index + idx, )
|
| 2152 |
|
| 2153 |
|
| 2154 |
class LUInstanceSetParams(LogicalUnit): |
| 2155 |
"""Modifies an instances's parameters.
|
| 2156 |
|
| 2157 |
"""
|
| 2158 |
HPATH = "instance-modify"
|
| 2159 |
HTYPE = constants.HTYPE_INSTANCE |
| 2160 |
REQ_BGL = False
|
| 2161 |
|
| 2162 |
@staticmethod
|
| 2163 |
def _UpgradeDiskNicMods(kind, mods, verify_fn): |
| 2164 |
assert ht.TList(mods)
|
| 2165 |
assert not mods or len(mods[0]) in (2, 3) |
| 2166 |
|
| 2167 |
if mods and len(mods[0]) == 2: |
| 2168 |
result = [] |
| 2169 |
|
| 2170 |
addremove = 0
|
| 2171 |
for op, params in mods: |
| 2172 |
if op in (constants.DDM_ADD, constants.DDM_REMOVE): |
| 2173 |
result.append((op, -1, params))
|
| 2174 |
addremove += 1
|
| 2175 |
|
| 2176 |
if addremove > 1: |
| 2177 |
raise errors.OpPrereqError("Only one %s add or remove operation is" |
| 2178 |
" supported at a time" % kind,
|
| 2179 |
errors.ECODE_INVAL) |
| 2180 |
else:
|
| 2181 |
result.append((constants.DDM_MODIFY, op, params)) |
| 2182 |
|
| 2183 |
assert verify_fn(result)
|
| 2184 |
else:
|
| 2185 |
result = mods |
| 2186 |
|
| 2187 |
return result
|
| 2188 |
|
| 2189 |
@staticmethod
|
| 2190 |
def _CheckMods(kind, mods, key_types, item_fn): |
| 2191 |
"""Ensures requested disk/NIC modifications are valid.
|
| 2192 |
|
| 2193 |
"""
|
| 2194 |
for (op, _, params) in mods: |
| 2195 |
assert ht.TDict(params)
|
| 2196 |
|
| 2197 |
# If 'key_types' is an empty dict, we assume we have an
|
| 2198 |
# 'ext' template and thus do not ForceDictType
|
| 2199 |
if key_types:
|
| 2200 |
utils.ForceDictType(params, key_types) |
| 2201 |
|
| 2202 |
if op == constants.DDM_REMOVE:
|
| 2203 |
if params:
|
| 2204 |
raise errors.OpPrereqError("No settings should be passed when" |
| 2205 |
" removing a %s" % kind,
|
| 2206 |
errors.ECODE_INVAL) |
| 2207 |
elif op in (constants.DDM_ADD, constants.DDM_MODIFY): |
| 2208 |
item_fn(op, params) |
| 2209 |
else:
|
| 2210 |
raise errors.ProgrammerError("Unhandled operation '%s'" % op) |
| 2211 |
|
| 2212 |
@staticmethod
|
| 2213 |
def _VerifyDiskModification(op, params): |
| 2214 |
"""Verifies a disk modification.
|
| 2215 |
|
| 2216 |
"""
|
| 2217 |
if op == constants.DDM_ADD:
|
| 2218 |
mode = params.setdefault(constants.IDISK_MODE, constants.DISK_RDWR) |
| 2219 |
if mode not in constants.DISK_ACCESS_SET: |
| 2220 |
raise errors.OpPrereqError("Invalid disk access mode '%s'" % mode, |
| 2221 |
errors.ECODE_INVAL) |
| 2222 |
|
| 2223 |
size = params.get(constants.IDISK_SIZE, None)
|
| 2224 |
if size is None: |
| 2225 |
raise errors.OpPrereqError("Required disk parameter '%s' missing" % |
| 2226 |
constants.IDISK_SIZE, errors.ECODE_INVAL) |
| 2227 |
|
| 2228 |
try:
|
| 2229 |
size = int(size)
|
| 2230 |
except (TypeError, ValueError), err: |
| 2231 |
raise errors.OpPrereqError("Invalid disk size parameter: %s" % err, |
| 2232 |
errors.ECODE_INVAL) |
| 2233 |
|
| 2234 |
params[constants.IDISK_SIZE] = size |
| 2235 |
name = params.get(constants.IDISK_NAME, None)
|
| 2236 |
if name is not None and name.lower() == constants.VALUE_NONE: |
| 2237 |
params[constants.IDISK_NAME] = None
|
| 2238 |
|
| 2239 |
elif op == constants.DDM_MODIFY:
|
| 2240 |
if constants.IDISK_SIZE in params: |
| 2241 |
raise errors.OpPrereqError("Disk size change not possible, use" |
| 2242 |
" grow-disk", errors.ECODE_INVAL)
|
| 2243 |
if len(params) > 2: |
| 2244 |
raise errors.OpPrereqError("Disk modification doesn't support" |
| 2245 |
" additional arbitrary parameters",
|
| 2246 |
errors.ECODE_INVAL) |
| 2247 |
name = params.get(constants.IDISK_NAME, None)
|
| 2248 |
if name is not None and name.lower() == constants.VALUE_NONE: |
| 2249 |
params[constants.IDISK_NAME] = None
|
| 2250 |
|
| 2251 |
@staticmethod
|
| 2252 |
def _VerifyNicModification(op, params): |
| 2253 |
"""Verifies a network interface modification.
|
| 2254 |
|
| 2255 |
"""
|
| 2256 |
if op in (constants.DDM_ADD, constants.DDM_MODIFY): |
| 2257 |
ip = params.get(constants.INIC_IP, None)
|
| 2258 |
name = params.get(constants.INIC_NAME, None)
|
| 2259 |
req_net = params.get(constants.INIC_NETWORK, None)
|
| 2260 |
link = params.get(constants.NIC_LINK, None)
|
| 2261 |
mode = params.get(constants.NIC_MODE, None)
|
| 2262 |
if name is not None and name.lower() == constants.VALUE_NONE: |
| 2263 |
params[constants.INIC_NAME] = None
|
| 2264 |
if req_net is not None: |
| 2265 |
if req_net.lower() == constants.VALUE_NONE:
|
| 2266 |
params[constants.INIC_NETWORK] = None
|
| 2267 |
req_net = None
|
| 2268 |
elif link is not None or mode is not None: |
| 2269 |
raise errors.OpPrereqError("If network is given" |
| 2270 |
" mode or link should not",
|
| 2271 |
errors.ECODE_INVAL) |
| 2272 |
|
| 2273 |
if op == constants.DDM_ADD:
|
| 2274 |
macaddr = params.get(constants.INIC_MAC, None)
|
| 2275 |
if macaddr is None: |
| 2276 |
params[constants.INIC_MAC] = constants.VALUE_AUTO |
| 2277 |
|
| 2278 |
if ip is not None: |
| 2279 |
if ip.lower() == constants.VALUE_NONE:
|
| 2280 |
params[constants.INIC_IP] = None
|
| 2281 |
else:
|
| 2282 |
if ip.lower() == constants.NIC_IP_POOL:
|
| 2283 |
if op == constants.DDM_ADD and req_net is None: |
| 2284 |
raise errors.OpPrereqError("If ip=pool, parameter network" |
| 2285 |
" cannot be none",
|
| 2286 |
errors.ECODE_INVAL) |
| 2287 |
else:
|
| 2288 |
if not netutils.IPAddress.IsValid(ip): |
| 2289 |
raise errors.OpPrereqError("Invalid IP address '%s'" % ip, |
| 2290 |
errors.ECODE_INVAL) |
| 2291 |
|
| 2292 |
if constants.INIC_MAC in params: |
| 2293 |
macaddr = params[constants.INIC_MAC] |
| 2294 |
if macaddr not in (constants.VALUE_AUTO, constants.VALUE_GENERATE): |
| 2295 |
macaddr = utils.NormalizeAndValidateMac(macaddr) |
| 2296 |
|
| 2297 |
if op == constants.DDM_MODIFY and macaddr == constants.VALUE_AUTO: |
| 2298 |
raise errors.OpPrereqError("'auto' is not a valid MAC address when" |
| 2299 |
" modifying an existing NIC",
|
| 2300 |
errors.ECODE_INVAL) |
| 2301 |
|
| 2302 |
def CheckArguments(self): |
| 2303 |
if not (self.op.nics or self.op.disks or self.op.disk_template or |
| 2304 |
self.op.hvparams or self.op.beparams or self.op.os_name or |
| 2305 |
self.op.offline is not None or self.op.runtime_mem or |
| 2306 |
self.op.pnode):
|
| 2307 |
raise errors.OpPrereqError("No changes submitted", errors.ECODE_INVAL) |
| 2308 |
|
| 2309 |
if self.op.hvparams: |
| 2310 |
_CheckParamsNotGlobal(self.op.hvparams, constants.HVC_GLOBALS,
|
| 2311 |
"hypervisor", "instance", "cluster") |
| 2312 |
|
| 2313 |
self.op.disks = self._UpgradeDiskNicMods( |
| 2314 |
"disk", self.op.disks, opcodes.OpInstanceSetParams.TestDiskModifications) |
| 2315 |
self.op.nics = self._UpgradeDiskNicMods( |
| 2316 |
"NIC", self.op.nics, opcodes.OpInstanceSetParams.TestNicModifications) |
| 2317 |
|
| 2318 |
if self.op.disks and self.op.disk_template is not None: |
| 2319 |
raise errors.OpPrereqError("Disk template conversion and other disk" |
| 2320 |
" changes not supported at the same time",
|
| 2321 |
errors.ECODE_INVAL) |
| 2322 |
|
| 2323 |
if (self.op.disk_template and |
| 2324 |
self.op.disk_template in constants.DTS_INT_MIRROR and |
| 2325 |
self.op.remote_node is None): |
| 2326 |
raise errors.OpPrereqError("Changing the disk template to a mirrored" |
| 2327 |
" one requires specifying a secondary node",
|
| 2328 |
errors.ECODE_INVAL) |
| 2329 |
|
| 2330 |
# Check NIC modifications
|
| 2331 |
self._CheckMods("NIC", self.op.nics, constants.INIC_PARAMS_TYPES, |
| 2332 |
self._VerifyNicModification)
|
| 2333 |
|
| 2334 |
if self.op.pnode: |
| 2335 |
self.op.pnode = _ExpandNodeName(self.cfg, self.op.pnode) |
| 2336 |
|
| 2337 |
def ExpandNames(self): |
| 2338 |
self._ExpandAndLockInstance()
|
| 2339 |
self.needed_locks[locking.LEVEL_NODEGROUP] = []
|
| 2340 |
# Can't even acquire node locks in shared mode as upcoming changes in
|
| 2341 |
# Ganeti 2.6 will start to modify the node object on disk conversion
|
| 2342 |
self.needed_locks[locking.LEVEL_NODE] = []
|
| 2343 |
self.needed_locks[locking.LEVEL_NODE_RES] = []
|
| 2344 |
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
|
| 2345 |
# Look node group to look up the ipolicy
|
| 2346 |
self.share_locks[locking.LEVEL_NODEGROUP] = 1 |
| 2347 |
|
| 2348 |
def DeclareLocks(self, level): |
| 2349 |
if level == locking.LEVEL_NODEGROUP:
|
| 2350 |
assert not self.needed_locks[locking.LEVEL_NODEGROUP] |
| 2351 |
# Acquire locks for the instance's nodegroups optimistically. Needs
|
| 2352 |
# to be verified in CheckPrereq
|
| 2353 |
self.needed_locks[locking.LEVEL_NODEGROUP] = \
|
| 2354 |
self.cfg.GetInstanceNodeGroups(self.op.instance_name) |
| 2355 |
elif level == locking.LEVEL_NODE:
|
| 2356 |
self._LockInstancesNodes()
|
| 2357 |
if self.op.disk_template and self.op.remote_node: |
| 2358 |
self.op.remote_node = _ExpandNodeName(self.cfg, self.op.remote_node) |
| 2359 |
self.needed_locks[locking.LEVEL_NODE].append(self.op.remote_node) |
| 2360 |
elif level == locking.LEVEL_NODE_RES and self.op.disk_template: |
| 2361 |
# Copy node locks
|
| 2362 |
self.needed_locks[locking.LEVEL_NODE_RES] = \
|
| 2363 |
_CopyLockList(self.needed_locks[locking.LEVEL_NODE])
|
| 2364 |
|
| 2365 |
def BuildHooksEnv(self): |
| 2366 |
"""Build hooks env.
|
| 2367 |
|
| 2368 |
This runs on the master, primary and secondaries.
|
| 2369 |
|
| 2370 |
"""
|
| 2371 |
args = {}
|
| 2372 |
if constants.BE_MINMEM in self.be_new: |
| 2373 |
args["minmem"] = self.be_new[constants.BE_MINMEM] |
| 2374 |
if constants.BE_MAXMEM in self.be_new: |
| 2375 |
args["maxmem"] = self.be_new[constants.BE_MAXMEM] |
| 2376 |
if constants.BE_VCPUS in self.be_new: |
| 2377 |
args["vcpus"] = self.be_new[constants.BE_VCPUS] |
| 2378 |
# TODO: export disk changes. Note: _BuildInstanceHookEnv* don't export disk
|
| 2379 |
# information at all.
|
| 2380 |
|
| 2381 |
if self._new_nics is not None: |
| 2382 |
nics = [] |
| 2383 |
|
| 2384 |
for nic in self._new_nics: |
| 2385 |
n = copy.deepcopy(nic) |
| 2386 |
nicparams = self.cluster.SimpleFillNIC(n.nicparams)
|
| 2387 |
n.nicparams = nicparams |
| 2388 |
nics.append(_NICToTuple(self, n))
|
| 2389 |
|
| 2390 |
args["nics"] = nics
|
| 2391 |
|
| 2392 |
env = _BuildInstanceHookEnvByObject(self, self.instance, override=args) |
| 2393 |
if self.op.disk_template: |
| 2394 |
env["NEW_DISK_TEMPLATE"] = self.op.disk_template |
| 2395 |
if self.op.runtime_mem: |
| 2396 |
env["RUNTIME_MEMORY"] = self.op.runtime_mem |
| 2397 |
|
| 2398 |
return env
|
| 2399 |
|
| 2400 |
def BuildHooksNodes(self): |
| 2401 |
"""Build hooks nodes.
|
| 2402 |
|
| 2403 |
"""
|
| 2404 |
nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes) |
| 2405 |
return (nl, nl)
|
| 2406 |
|
| 2407 |
def _PrepareNicModification(self, params, private, old_ip, old_net_uuid, |
| 2408 |
old_params, cluster, pnode): |
| 2409 |
|
| 2410 |
update_params_dict = dict([(key, params[key])
|
| 2411 |
for key in constants.NICS_PARAMETERS |
| 2412 |
if key in params]) |
| 2413 |
|
| 2414 |
req_link = update_params_dict.get(constants.NIC_LINK, None)
|
| 2415 |
req_mode = update_params_dict.get(constants.NIC_MODE, None)
|
| 2416 |
|
| 2417 |
new_net_uuid = None
|
| 2418 |
new_net_uuid_or_name = params.get(constants.INIC_NETWORK, old_net_uuid) |
| 2419 |
if new_net_uuid_or_name:
|
| 2420 |
new_net_uuid = self.cfg.LookupNetwork(new_net_uuid_or_name)
|
| 2421 |
new_net_obj = self.cfg.GetNetwork(new_net_uuid)
|
| 2422 |
|
| 2423 |
if old_net_uuid:
|
| 2424 |
old_net_obj = self.cfg.GetNetwork(old_net_uuid)
|
| 2425 |
|
| 2426 |
if new_net_uuid:
|
| 2427 |
netparams = self.cfg.GetGroupNetParams(new_net_uuid, pnode)
|
| 2428 |
if not netparams: |
| 2429 |
raise errors.OpPrereqError("No netparams found for the network" |
| 2430 |
" %s, probably not connected" %
|
| 2431 |
new_net_obj.name, errors.ECODE_INVAL) |
| 2432 |
new_params = dict(netparams)
|
| 2433 |
else:
|
| 2434 |
new_params = _GetUpdatedParams(old_params, update_params_dict) |
| 2435 |
|
| 2436 |
utils.ForceDictType(new_params, constants.NICS_PARAMETER_TYPES) |
| 2437 |
|
| 2438 |
new_filled_params = cluster.SimpleFillNIC(new_params) |
| 2439 |
objects.NIC.CheckParameterSyntax(new_filled_params) |
| 2440 |
|
| 2441 |
new_mode = new_filled_params[constants.NIC_MODE] |
| 2442 |
if new_mode == constants.NIC_MODE_BRIDGED:
|
| 2443 |
bridge = new_filled_params[constants.NIC_LINK] |
| 2444 |
msg = self.rpc.call_bridges_exist(pnode, [bridge]).fail_msg
|
| 2445 |
if msg:
|
| 2446 |
msg = "Error checking bridges on node '%s': %s" % (pnode, msg)
|
| 2447 |
if self.op.force: |
| 2448 |
self.warn.append(msg)
|
| 2449 |
else:
|
| 2450 |
raise errors.OpPrereqError(msg, errors.ECODE_ENVIRON)
|
| 2451 |
|
| 2452 |
elif new_mode == constants.NIC_MODE_ROUTED:
|
| 2453 |
ip = params.get(constants.INIC_IP, old_ip) |
| 2454 |
if ip is None: |
| 2455 |
raise errors.OpPrereqError("Cannot set the NIC IP address to None" |
| 2456 |
" on a routed NIC", errors.ECODE_INVAL)
|
| 2457 |
|
| 2458 |
elif new_mode == constants.NIC_MODE_OVS:
|
| 2459 |
# TODO: check OVS link
|
| 2460 |
self.LogInfo("OVS links are currently not checked for correctness") |
| 2461 |
|
| 2462 |
if constants.INIC_MAC in params: |
| 2463 |
mac = params[constants.INIC_MAC] |
| 2464 |
if mac is None: |
| 2465 |
raise errors.OpPrereqError("Cannot unset the NIC MAC address", |
| 2466 |
errors.ECODE_INVAL) |
| 2467 |
elif mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE): |
| 2468 |
# otherwise generate the MAC address
|
| 2469 |
params[constants.INIC_MAC] = \ |
| 2470 |
self.cfg.GenerateMAC(new_net_uuid, self.proc.GetECId()) |
| 2471 |
else:
|
| 2472 |
# or validate/reserve the current one
|
| 2473 |
try:
|
| 2474 |
self.cfg.ReserveMAC(mac, self.proc.GetECId()) |
| 2475 |
except errors.ReservationError:
|
| 2476 |
raise errors.OpPrereqError("MAC address '%s' already in use" |
| 2477 |
" in cluster" % mac,
|
| 2478 |
errors.ECODE_NOTUNIQUE) |
| 2479 |
elif new_net_uuid != old_net_uuid:
|
| 2480 |
|
| 2481 |
def get_net_prefix(net_uuid): |
| 2482 |
mac_prefix = None
|
| 2483 |
if net_uuid:
|
| 2484 |
nobj = self.cfg.GetNetwork(net_uuid)
|
| 2485 |
mac_prefix = nobj.mac_prefix |
| 2486 |
|
| 2487 |
return mac_prefix
|
| 2488 |
|
| 2489 |
new_prefix = get_net_prefix(new_net_uuid) |
| 2490 |
old_prefix = get_net_prefix(old_net_uuid) |
| 2491 |
if old_prefix != new_prefix:
|
| 2492 |
params[constants.INIC_MAC] = \ |
| 2493 |
self.cfg.GenerateMAC(new_net_uuid, self.proc.GetECId()) |
| 2494 |
|
| 2495 |
# if there is a change in (ip, network) tuple
|
| 2496 |
new_ip = params.get(constants.INIC_IP, old_ip) |
| 2497 |
if (new_ip, new_net_uuid) != (old_ip, old_net_uuid):
|
| 2498 |
if new_ip:
|
| 2499 |
# if IP is pool then require a network and generate one IP
|
| 2500 |
if new_ip.lower() == constants.NIC_IP_POOL:
|
| 2501 |
if new_net_uuid:
|
| 2502 |
try:
|
| 2503 |
new_ip = self.cfg.GenerateIp(new_net_uuid, self.proc.GetECId()) |
| 2504 |
except errors.ReservationError:
|
| 2505 |
raise errors.OpPrereqError("Unable to get a free IP" |
| 2506 |
" from the address pool",
|
| 2507 |
errors.ECODE_STATE) |
| 2508 |
self.LogInfo("Chose IP %s from network %s", |
| 2509 |
new_ip, |
| 2510 |
new_net_obj.name) |
| 2511 |
params[constants.INIC_IP] = new_ip |
| 2512 |
else:
|
| 2513 |
raise errors.OpPrereqError("ip=pool, but no network found", |
| 2514 |
errors.ECODE_INVAL) |
| 2515 |
# Reserve new IP if in the new network if any
|
| 2516 |
elif new_net_uuid:
|
| 2517 |
try:
|
| 2518 |
self.cfg.ReserveIp(new_net_uuid, new_ip, self.proc.GetECId()) |
| 2519 |
self.LogInfo("Reserving IP %s in network %s", |
| 2520 |
new_ip, new_net_obj.name) |
| 2521 |
except errors.ReservationError:
|
| 2522 |
raise errors.OpPrereqError("IP %s not available in network %s" % |
| 2523 |
(new_ip, new_net_obj.name), |
| 2524 |
errors.ECODE_NOTUNIQUE) |
| 2525 |
# new network is None so check if new IP is a conflicting IP
|
| 2526 |
elif self.op.conflicts_check: |
| 2527 |
_CheckForConflictingIp(self, new_ip, pnode)
|
| 2528 |
|
| 2529 |
# release old IP if old network is not None
|
| 2530 |
if old_ip and old_net_uuid: |
| 2531 |
try:
|
| 2532 |
self.cfg.ReleaseIp(old_net_uuid, old_ip, self.proc.GetECId()) |
| 2533 |
except errors.AddressPoolError:
|
| 2534 |
logging.warning("Release IP %s not contained in network %s",
|
| 2535 |
old_ip, old_net_obj.name) |
| 2536 |
|
| 2537 |
# there are no changes in (ip, network) tuple and old network is not None
|
| 2538 |
elif (old_net_uuid is not None and |
| 2539 |
(req_link is not None or req_mode is not None)): |
| 2540 |
raise errors.OpPrereqError("Not allowed to change link or mode of" |
| 2541 |
" a NIC that is connected to a network",
|
| 2542 |
errors.ECODE_INVAL) |
| 2543 |
|
| 2544 |
private.params = new_params |
| 2545 |
private.filled = new_filled_params |
| 2546 |
|
| 2547 |
def _PreCheckDiskTemplate(self, pnode_info): |
| 2548 |
"""CheckPrereq checks related to a new disk template."""
|
| 2549 |
# Arguments are passed to avoid configuration lookups
|
| 2550 |
instance = self.instance
|
| 2551 |
pnode = instance.primary_node |
| 2552 |
cluster = self.cluster
|
| 2553 |
if instance.disk_template == self.op.disk_template: |
| 2554 |
raise errors.OpPrereqError("Instance already has disk template %s" % |
| 2555 |
instance.disk_template, errors.ECODE_INVAL) |
| 2556 |
|
| 2557 |
if (instance.disk_template,
|
| 2558 |
self.op.disk_template) not in self._DISK_CONVERSIONS: |
| 2559 |
raise errors.OpPrereqError("Unsupported disk template conversion from" |
| 2560 |
" %s to %s" % (instance.disk_template,
|
| 2561 |
self.op.disk_template),
|
| 2562 |
errors.ECODE_INVAL) |
| 2563 |
_CheckInstanceState(self, instance, INSTANCE_DOWN,
|
| 2564 |
msg="cannot change disk template")
|
| 2565 |
if self.op.disk_template in constants.DTS_INT_MIRROR: |
| 2566 |
if self.op.remote_node == pnode: |
| 2567 |
raise errors.OpPrereqError("Given new secondary node %s is the same" |
| 2568 |
" as the primary node of the instance" %
|
| 2569 |
self.op.remote_node, errors.ECODE_STATE)
|
| 2570 |
_CheckNodeOnline(self, self.op.remote_node) |
| 2571 |
_CheckNodeNotDrained(self, self.op.remote_node) |
| 2572 |
# FIXME: here we assume that the old instance type is DT_PLAIN
|
| 2573 |
assert instance.disk_template == constants.DT_PLAIN
|
| 2574 |
disks = [{constants.IDISK_SIZE: d.size,
|
| 2575 |
constants.IDISK_VG: d.logical_id[0]}
|
| 2576 |
for d in instance.disks] |
| 2577 |
required = _ComputeDiskSizePerVG(self.op.disk_template, disks)
|
| 2578 |
_CheckNodesFreeDiskPerVG(self, [self.op.remote_node], required) |
| 2579 |
|
| 2580 |
snode_info = self.cfg.GetNodeInfo(self.op.remote_node) |
| 2581 |
snode_group = self.cfg.GetNodeGroup(snode_info.group)
|
| 2582 |
ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster, |
| 2583 |
snode_group) |
| 2584 |
_CheckTargetNodeIPolicy(self, ipolicy, instance, snode_info, self.cfg, |
| 2585 |
ignore=self.op.ignore_ipolicy)
|
| 2586 |
if pnode_info.group != snode_info.group:
|
| 2587 |
self.LogWarning("The primary and secondary nodes are in two" |
| 2588 |
" different node groups; the disk parameters"
|
| 2589 |
" from the first disk's node group will be"
|
| 2590 |
" used")
|
| 2591 |
|
| 2592 |
if not self.op.disk_template in constants.DTS_EXCL_STORAGE: |
| 2593 |
# Make sure none of the nodes require exclusive storage
|
| 2594 |
nodes = [pnode_info] |
| 2595 |
if self.op.disk_template in constants.DTS_INT_MIRROR: |
| 2596 |
assert snode_info
|
| 2597 |
nodes.append(snode_info) |
| 2598 |
has_es = lambda n: _IsExclusiveStorageEnabledNode(self.cfg, n) |
| 2599 |
if compat.any(map(has_es, nodes)): |
| 2600 |
errmsg = ("Cannot convert disk template from %s to %s when exclusive"
|
| 2601 |
" storage is enabled" % (instance.disk_template,
|
| 2602 |
self.op.disk_template))
|
| 2603 |
raise errors.OpPrereqError(errmsg, errors.ECODE_STATE)
|
| 2604 |
|
| 2605 |
def CheckPrereq(self): |
| 2606 |
"""Check prerequisites.
|
| 2607 |
|
| 2608 |
This only checks the instance list against the existing names.
|
| 2609 |
|
| 2610 |
"""
|
| 2611 |
assert self.op.instance_name in self.owned_locks(locking.LEVEL_INSTANCE) |
| 2612 |
instance = self.instance = self.cfg.GetInstanceInfo(self.op.instance_name) |
| 2613 |
|
| 2614 |
cluster = self.cluster = self.cfg.GetClusterInfo() |
| 2615 |
assert self.instance is not None, \ |
| 2616 |
"Cannot retrieve locked instance %s" % self.op.instance_name |
| 2617 |
|
| 2618 |
pnode = instance.primary_node |
| 2619 |
|
| 2620 |
self.warn = []
|
| 2621 |
|
| 2622 |
if (self.op.pnode is not None and self.op.pnode != pnode and |
| 2623 |
not self.op.force): |
| 2624 |
# verify that the instance is not up
|
| 2625 |
instance_info = self.rpc.call_instance_info(pnode, instance.name,
|
| 2626 |
instance.hypervisor) |
| 2627 |
if instance_info.fail_msg:
|
| 2628 |
self.warn.append("Can't get instance runtime information: %s" % |
| 2629 |
instance_info.fail_msg) |
| 2630 |
elif instance_info.payload:
|
| 2631 |
raise errors.OpPrereqError("Instance is still running on %s" % pnode, |
| 2632 |
errors.ECODE_STATE) |
| 2633 |
|
| 2634 |
assert pnode in self.owned_locks(locking.LEVEL_NODE) |
| 2635 |
nodelist = list(instance.all_nodes)
|
| 2636 |
pnode_info = self.cfg.GetNodeInfo(pnode)
|
| 2637 |
self.diskparams = self.cfg.GetInstanceDiskParams(instance) |
| 2638 |
|
| 2639 |
#_CheckInstanceNodeGroups(self.cfg, self.op.instance_name, owned_groups)
|
| 2640 |
assert pnode_info.group in self.owned_locks(locking.LEVEL_NODEGROUP) |
| 2641 |
group_info = self.cfg.GetNodeGroup(pnode_info.group)
|
| 2642 |
|
| 2643 |
# dictionary with instance information after the modification
|
| 2644 |
ispec = {}
|
| 2645 |
|
| 2646 |
# Check disk modifications. This is done here and not in CheckArguments
|
| 2647 |
# (as with NICs), because we need to know the instance's disk template
|
| 2648 |
if instance.disk_template == constants.DT_EXT:
|
| 2649 |
self._CheckMods("disk", self.op.disks, {}, |
| 2650 |
self._VerifyDiskModification)
|
| 2651 |
else:
|
| 2652 |
self._CheckMods("disk", self.op.disks, constants.IDISK_PARAMS_TYPES, |
| 2653 |
self._VerifyDiskModification)
|
| 2654 |
|
| 2655 |
# Prepare disk/NIC modifications
|
| 2656 |
self.diskmod = PrepareContainerMods(self.op.disks, None) |
| 2657 |
self.nicmod = PrepareContainerMods(self.op.nics, _InstNicModPrivate) |
| 2658 |
|
| 2659 |
# Check the validity of the `provider' parameter
|
| 2660 |
if instance.disk_template in constants.DT_EXT: |
| 2661 |
for mod in self.diskmod: |
| 2662 |
ext_provider = mod[2].get(constants.IDISK_PROVIDER, None) |
| 2663 |
if mod[0] == constants.DDM_ADD: |
| 2664 |
if ext_provider is None: |
| 2665 |
raise errors.OpPrereqError("Instance template is '%s' and parameter" |
| 2666 |
" '%s' missing, during disk add" %
|
| 2667 |
(constants.DT_EXT, |
| 2668 |
constants.IDISK_PROVIDER), |
| 2669 |
errors.ECODE_NOENT) |
| 2670 |
elif mod[0] == constants.DDM_MODIFY: |
| 2671 |
if ext_provider:
|
| 2672 |
raise errors.OpPrereqError("Parameter '%s' is invalid during disk" |
| 2673 |
" modification" %
|
| 2674 |
constants.IDISK_PROVIDER, |
| 2675 |
errors.ECODE_INVAL) |
| 2676 |
else:
|
| 2677 |
for mod in self.diskmod: |
| 2678 |
ext_provider = mod[2].get(constants.IDISK_PROVIDER, None) |
| 2679 |
if ext_provider is not None: |
| 2680 |
raise errors.OpPrereqError("Parameter '%s' is only valid for" |
| 2681 |
" instances of type '%s'" %
|
| 2682 |
(constants.IDISK_PROVIDER, |
| 2683 |
constants.DT_EXT), |
| 2684 |
errors.ECODE_INVAL) |
| 2685 |
|
| 2686 |
# OS change
|
| 2687 |
if self.op.os_name and not self.op.force: |
| 2688 |
_CheckNodeHasOS(self, instance.primary_node, self.op.os_name, |
| 2689 |
self.op.force_variant)
|
| 2690 |
instance_os = self.op.os_name
|
| 2691 |
else:
|
| 2692 |
instance_os = instance.os |
| 2693 |
|
| 2694 |
assert not (self.op.disk_template and self.op.disks), \ |
| 2695 |
"Can't modify disk template and apply disk changes at the same time"
|
| 2696 |
|
| 2697 |
if self.op.disk_template: |
| 2698 |
self._PreCheckDiskTemplate(pnode_info)
|
| 2699 |
|
| 2700 |
# hvparams processing
|
| 2701 |
if self.op.hvparams: |
| 2702 |
hv_type = instance.hypervisor |
| 2703 |
i_hvdict = _GetUpdatedParams(instance.hvparams, self.op.hvparams)
|
| 2704 |
utils.ForceDictType(i_hvdict, constants.HVS_PARAMETER_TYPES) |
| 2705 |
hv_new = cluster.SimpleFillHV(hv_type, instance.os, i_hvdict) |
| 2706 |
|
| 2707 |
# local check
|
| 2708 |
hypervisor.GetHypervisorClass(hv_type).CheckParameterSyntax(hv_new) |
| 2709 |
_CheckHVParams(self, nodelist, instance.hypervisor, hv_new)
|
| 2710 |
self.hv_proposed = self.hv_new = hv_new # the new actual values |
| 2711 |
self.hv_inst = i_hvdict # the new dict (without defaults) |
| 2712 |
else:
|
| 2713 |
self.hv_proposed = cluster.SimpleFillHV(instance.hypervisor, instance.os,
|
| 2714 |
instance.hvparams) |
| 2715 |
self.hv_new = self.hv_inst = {} |
| 2716 |
|
| 2717 |
# beparams processing
|
| 2718 |
if self.op.beparams: |
| 2719 |
i_bedict = _GetUpdatedParams(instance.beparams, self.op.beparams,
|
| 2720 |
use_none=True)
|
| 2721 |
objects.UpgradeBeParams(i_bedict) |
| 2722 |
utils.ForceDictType(i_bedict, constants.BES_PARAMETER_TYPES) |
| 2723 |
be_new = cluster.SimpleFillBE(i_bedict) |
| 2724 |
self.be_proposed = self.be_new = be_new # the new actual values |
| 2725 |
self.be_inst = i_bedict # the new dict (without defaults) |
| 2726 |
else:
|
| 2727 |
self.be_new = self.be_inst = {} |
| 2728 |
self.be_proposed = cluster.SimpleFillBE(instance.beparams)
|
| 2729 |
be_old = cluster.FillBE(instance) |
| 2730 |
|
| 2731 |
# CPU param validation -- checking every time a parameter is
|
| 2732 |
# changed to cover all cases where either CPU mask or vcpus have
|
| 2733 |
# changed
|
| 2734 |
if (constants.BE_VCPUS in self.be_proposed and |
| 2735 |
constants.HV_CPU_MASK in self.hv_proposed): |
| 2736 |
cpu_list = \ |
| 2737 |
utils.ParseMultiCpuMask(self.hv_proposed[constants.HV_CPU_MASK])
|
| 2738 |
# Verify mask is consistent with number of vCPUs. Can skip this
|
| 2739 |
# test if only 1 entry in the CPU mask, which means same mask
|
| 2740 |
# is applied to all vCPUs.
|
| 2741 |
if (len(cpu_list) > 1 and |
| 2742 |
len(cpu_list) != self.be_proposed[constants.BE_VCPUS]): |
| 2743 |
raise errors.OpPrereqError("Number of vCPUs [%d] does not match the" |
| 2744 |
" CPU mask [%s]" %
|
| 2745 |
(self.be_proposed[constants.BE_VCPUS],
|
| 2746 |
self.hv_proposed[constants.HV_CPU_MASK]),
|
| 2747 |
errors.ECODE_INVAL) |
| 2748 |
|
| 2749 |
# Only perform this test if a new CPU mask is given
|
| 2750 |
if constants.HV_CPU_MASK in self.hv_new: |
| 2751 |
# Calculate the largest CPU number requested
|
| 2752 |
max_requested_cpu = max(map(max, cpu_list)) |
| 2753 |
# Check that all of the instance's nodes have enough physical CPUs to
|
| 2754 |
# satisfy the requested CPU mask
|
| 2755 |
_CheckNodesPhysicalCPUs(self, instance.all_nodes,
|
| 2756 |
max_requested_cpu + 1, instance.hypervisor)
|
| 2757 |
|
| 2758 |
# osparams processing
|
| 2759 |
if self.op.osparams: |
| 2760 |
i_osdict = _GetUpdatedParams(instance.osparams, self.op.osparams)
|
| 2761 |
_CheckOSParams(self, True, nodelist, instance_os, i_osdict) |
| 2762 |
self.os_inst = i_osdict # the new dict (without defaults) |
| 2763 |
else:
|
| 2764 |
self.os_inst = {}
|
| 2765 |
|
| 2766 |
#TODO(dynmem): do the appropriate check involving MINMEM
|
| 2767 |
if (constants.BE_MAXMEM in self.op.beparams and not self.op.force and |
| 2768 |
be_new[constants.BE_MAXMEM] > be_old[constants.BE_MAXMEM]): |
| 2769 |
mem_check_list = [pnode] |
| 2770 |
if be_new[constants.BE_AUTO_BALANCE]:
|
| 2771 |
# either we changed auto_balance to yes or it was from before
|
| 2772 |
mem_check_list.extend(instance.secondary_nodes) |
| 2773 |
instance_info = self.rpc.call_instance_info(pnode, instance.name,
|
| 2774 |
instance.hypervisor) |
| 2775 |
nodeinfo = self.rpc.call_node_info(mem_check_list, None, |
| 2776 |
[instance.hypervisor], False)
|
| 2777 |
pninfo = nodeinfo[pnode] |
| 2778 |
msg = pninfo.fail_msg |
| 2779 |
if msg:
|
| 2780 |
# Assume the primary node is unreachable and go ahead
|
| 2781 |
self.warn.append("Can't get info from primary node %s: %s" % |
| 2782 |
(pnode, msg)) |
| 2783 |
else:
|
| 2784 |
(_, _, (pnhvinfo, )) = pninfo.payload |
| 2785 |
if not isinstance(pnhvinfo.get("memory_free", None), int): |
| 2786 |
self.warn.append("Node data from primary node %s doesn't contain" |
| 2787 |
" free memory information" % pnode)
|
| 2788 |
elif instance_info.fail_msg:
|
| 2789 |
self.warn.append("Can't get instance runtime information: %s" % |
| 2790 |
instance_info.fail_msg) |
| 2791 |
else:
|
| 2792 |
if instance_info.payload:
|
| 2793 |
current_mem = int(instance_info.payload["memory"]) |
| 2794 |
else:
|
| 2795 |
# Assume instance not running
|
| 2796 |
# (there is a slight race condition here, but it's not very
|
| 2797 |
# probable, and we have no other way to check)
|
| 2798 |
# TODO: Describe race condition
|
| 2799 |
current_mem = 0
|
| 2800 |
#TODO(dynmem): do the appropriate check involving MINMEM
|
| 2801 |
miss_mem = (be_new[constants.BE_MAXMEM] - current_mem - |
| 2802 |
pnhvinfo["memory_free"])
|
| 2803 |
if miss_mem > 0: |
| 2804 |
raise errors.OpPrereqError("This change will prevent the instance" |
| 2805 |
" from starting, due to %d MB of memory"
|
| 2806 |
" missing on its primary node" %
|
| 2807 |
miss_mem, errors.ECODE_NORES) |
| 2808 |
|
| 2809 |
if be_new[constants.BE_AUTO_BALANCE]:
|
| 2810 |
for node, nres in nodeinfo.items(): |
| 2811 |
if node not in instance.secondary_nodes: |
| 2812 |
continue
|
| 2813 |
nres.Raise("Can't get info from secondary node %s" % node,
|
| 2814 |
prereq=True, ecode=errors.ECODE_STATE)
|
| 2815 |
(_, _, (nhvinfo, )) = nres.payload |
| 2816 |
if not isinstance(nhvinfo.get("memory_free", None), int): |
| 2817 |
raise errors.OpPrereqError("Secondary node %s didn't return free" |
| 2818 |
" memory information" % node,
|
| 2819 |
errors.ECODE_STATE) |
| 2820 |
#TODO(dynmem): do the appropriate check involving MINMEM
|
| 2821 |
elif be_new[constants.BE_MAXMEM] > nhvinfo["memory_free"]: |
| 2822 |
raise errors.OpPrereqError("This change will prevent the instance" |
| 2823 |
" from failover to its secondary node"
|
| 2824 |
" %s, due to not enough memory" % node,
|
| 2825 |
errors.ECODE_STATE) |
| 2826 |
|
| 2827 |
if self.op.runtime_mem: |
| 2828 |
remote_info = self.rpc.call_instance_info(instance.primary_node,
|
| 2829 |
instance.name, |
| 2830 |
instance.hypervisor) |
| 2831 |
remote_info.Raise("Error checking node %s" % instance.primary_node)
|
| 2832 |
if not remote_info.payload: # not running already |
| 2833 |
raise errors.OpPrereqError("Instance %s is not running" % |
| 2834 |
instance.name, errors.ECODE_STATE) |
| 2835 |
|
| 2836 |
current_memory = remote_info.payload["memory"]
|
| 2837 |
if (not self.op.force and |
| 2838 |
(self.op.runtime_mem > self.be_proposed[constants.BE_MAXMEM] or |
| 2839 |
self.op.runtime_mem < self.be_proposed[constants.BE_MINMEM])): |
| 2840 |
raise errors.OpPrereqError("Instance %s must have memory between %d" |
| 2841 |
" and %d MB of memory unless --force is"
|
| 2842 |
" given" %
|
| 2843 |
(instance.name, |
| 2844 |
self.be_proposed[constants.BE_MINMEM],
|
| 2845 |
self.be_proposed[constants.BE_MAXMEM]),
|
| 2846 |
errors.ECODE_INVAL) |
| 2847 |
|
| 2848 |
delta = self.op.runtime_mem - current_memory
|
| 2849 |
if delta > 0: |
| 2850 |
_CheckNodeFreeMemory(self, instance.primary_node,
|
| 2851 |
"ballooning memory for instance %s" %
|
| 2852 |
instance.name, delta, instance.hypervisor) |
| 2853 |
|
| 2854 |
if self.op.disks and instance.disk_template == constants.DT_DISKLESS: |
| 2855 |
raise errors.OpPrereqError("Disk operations not supported for" |
| 2856 |
" diskless instances", errors.ECODE_INVAL)
|
| 2857 |
|
| 2858 |
def _PrepareNicCreate(_, params, private): |
| 2859 |
self._PrepareNicModification(params, private, None, None, |
| 2860 |
{}, cluster, pnode)
|
| 2861 |
return (None, None) |
| 2862 |
|
| 2863 |
def _PrepareNicMod(_, nic, params, private): |
| 2864 |
self._PrepareNicModification(params, private, nic.ip, nic.network,
|
| 2865 |
nic.nicparams, cluster, pnode) |
| 2866 |
return None |
| 2867 |
|
| 2868 |
def _PrepareNicRemove(_, params, __): |
| 2869 |
ip = params.ip |
| 2870 |
net = params.network |
| 2871 |
if net is not None and ip is not None: |
| 2872 |
self.cfg.ReleaseIp(net, ip, self.proc.GetECId()) |
| 2873 |
|
| 2874 |
# Verify NIC changes (operating on copy)
|
| 2875 |
nics = instance.nics[:] |
| 2876 |
ApplyContainerMods("NIC", nics, None, self.nicmod, |
| 2877 |
_PrepareNicCreate, _PrepareNicMod, _PrepareNicRemove) |
| 2878 |
if len(nics) > constants.MAX_NICS: |
| 2879 |
raise errors.OpPrereqError("Instance has too many network interfaces" |
| 2880 |
" (%d), cannot add more" % constants.MAX_NICS,
|
| 2881 |
errors.ECODE_STATE) |
| 2882 |
|
| 2883 |
def _PrepareDiskMod(_, disk, params, __): |
| 2884 |
disk.name = params.get(constants.IDISK_NAME, None)
|
| 2885 |
|
| 2886 |
# Verify disk changes (operating on a copy)
|
| 2887 |
disks = copy.deepcopy(instance.disks) |
| 2888 |
ApplyContainerMods("disk", disks, None, self.diskmod, None, _PrepareDiskMod, |
| 2889 |
None)
|
| 2890 |
utils.ValidateDeviceNames("disk", disks)
|
| 2891 |
if len(disks) > constants.MAX_DISKS: |
| 2892 |
raise errors.OpPrereqError("Instance has too many disks (%d), cannot add" |
| 2893 |
" more" % constants.MAX_DISKS,
|
| 2894 |
errors.ECODE_STATE) |
| 2895 |
disk_sizes = [disk.size for disk in instance.disks] |
| 2896 |
disk_sizes.extend(params["size"] for (op, idx, params, private) in |
| 2897 |
self.diskmod if op == constants.DDM_ADD) |
| 2898 |
ispec[constants.ISPEC_DISK_COUNT] = len(disk_sizes)
|
| 2899 |
ispec[constants.ISPEC_DISK_SIZE] = disk_sizes |
| 2900 |
|
| 2901 |
if self.op.offline is not None and self.op.offline: |
| 2902 |
_CheckInstanceState(self, instance, CAN_CHANGE_INSTANCE_OFFLINE,
|
| 2903 |
msg="can't change to offline")
|
| 2904 |
|
| 2905 |
# Pre-compute NIC changes (necessary to use result in hooks)
|
| 2906 |
self._nic_chgdesc = []
|
| 2907 |
if self.nicmod: |
| 2908 |
# Operate on copies as this is still in prereq
|
| 2909 |
nics = [nic.Copy() for nic in instance.nics] |
| 2910 |
ApplyContainerMods("NIC", nics, self._nic_chgdesc, self.nicmod, |
| 2911 |
self._CreateNewNic, self._ApplyNicMods, None) |
| 2912 |
# Verify that NIC names are unique and valid
|
| 2913 |
utils.ValidateDeviceNames("NIC", nics)
|
| 2914 |
self._new_nics = nics
|
| 2915 |
ispec[constants.ISPEC_NIC_COUNT] = len(self._new_nics) |
| 2916 |
else:
|
| 2917 |
self._new_nics = None |
| 2918 |
ispec[constants.ISPEC_NIC_COUNT] = len(instance.nics)
|
| 2919 |
|
| 2920 |
if not self.op.ignore_ipolicy: |
| 2921 |
ipolicy = ganeti.masterd.instance.CalculateGroupIPolicy(cluster, |
| 2922 |
group_info) |
| 2923 |
|
| 2924 |
# Fill ispec with backend parameters
|
| 2925 |
ispec[constants.ISPEC_SPINDLE_USE] = \ |
| 2926 |
self.be_new.get(constants.BE_SPINDLE_USE, None) |
| 2927 |
ispec[constants.ISPEC_CPU_COUNT] = self.be_new.get(constants.BE_VCPUS,
|
| 2928 |
None)
|
| 2929 |
|
| 2930 |
# Copy ispec to verify parameters with min/max values separately
|
| 2931 |
if self.op.disk_template: |
| 2932 |
new_disk_template = self.op.disk_template
|
| 2933 |
else:
|
| 2934 |
new_disk_template = instance.disk_template |
| 2935 |
ispec_max = ispec.copy() |
| 2936 |
ispec_max[constants.ISPEC_MEM_SIZE] = \ |
| 2937 |
self.be_new.get(constants.BE_MAXMEM, None) |
| 2938 |
res_max = _ComputeIPolicyInstanceSpecViolation(ipolicy, ispec_max, |
| 2939 |
new_disk_template) |
| 2940 |
ispec_min = ispec.copy() |
| 2941 |
ispec_min[constants.ISPEC_MEM_SIZE] = \ |
| 2942 |
self.be_new.get(constants.BE_MINMEM, None) |
| 2943 |
res_min = _ComputeIPolicyInstanceSpecViolation(ipolicy, ispec_min, |
| 2944 |
new_disk_template) |
| 2945 |
|
| 2946 |
if (res_max or res_min): |
| 2947 |
# FIXME: Improve error message by including information about whether
|
| 2948 |
# the upper or lower limit of the parameter fails the ipolicy.
|
| 2949 |
msg = ("Instance allocation to group %s (%s) violates policy: %s" %
|
| 2950 |
(group_info, group_info.name, |
| 2951 |
utils.CommaJoin(set(res_max + res_min))))
|
| 2952 |
raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
|
| 2953 |
|
| 2954 |
def _ConvertPlainToDrbd(self, feedback_fn): |
| 2955 |
"""Converts an instance from plain to drbd.
|
| 2956 |
|
| 2957 |
"""
|
| 2958 |
feedback_fn("Converting template to drbd")
|
| 2959 |
instance = self.instance
|
| 2960 |
pnode = instance.primary_node |
| 2961 |
snode = self.op.remote_node
|
| 2962 |
|
| 2963 |
assert instance.disk_template == constants.DT_PLAIN
|
| 2964 |
|
| 2965 |
# create a fake disk info for _GenerateDiskTemplate
|
| 2966 |
disk_info = [{constants.IDISK_SIZE: d.size, constants.IDISK_MODE: d.mode,
|
| 2967 |
constants.IDISK_VG: d.logical_id[0],
|
| 2968 |
constants.IDISK_NAME: d.name} |
| 2969 |
for d in instance.disks] |
| 2970 |
new_disks = _GenerateDiskTemplate(self, self.op.disk_template, |
| 2971 |
instance.name, pnode, [snode], |
| 2972 |
disk_info, None, None, 0, feedback_fn, |
| 2973 |
self.diskparams)
|
| 2974 |
anno_disks = rpc.AnnotateDiskParams(constants.DT_DRBD8, new_disks, |
| 2975 |
self.diskparams)
|
| 2976 |
p_excl_stor = _IsExclusiveStorageEnabledNodeName(self.cfg, pnode)
|
| 2977 |
s_excl_stor = _IsExclusiveStorageEnabledNodeName(self.cfg, snode)
|
| 2978 |
info = _GetInstanceInfoText(instance) |
| 2979 |
feedback_fn("Creating additional volumes...")
|
| 2980 |
# first, create the missing data and meta devices
|
| 2981 |
for disk in anno_disks: |
| 2982 |
# unfortunately this is... not too nice
|
| 2983 |
_CreateSingleBlockDev(self, pnode, instance, disk.children[1], |
| 2984 |
info, True, p_excl_stor)
|
| 2985 |
for child in disk.children: |
| 2986 |
_CreateSingleBlockDev(self, snode, instance, child, info, True, |
| 2987 |
s_excl_stor) |
| 2988 |
# at this stage, all new LVs have been created, we can rename the
|
| 2989 |
# old ones
|
| 2990 |
feedback_fn("Renaming original volumes...")
|
| 2991 |
rename_list = [(o, n.children[0].logical_id)
|
| 2992 |
for (o, n) in zip(instance.disks, new_disks)] |
| 2993 |
result = self.rpc.call_blockdev_rename(pnode, rename_list)
|
| 2994 |
result.Raise("Failed to rename original LVs")
|
| 2995 |
|
| 2996 |
feedback_fn("Initializing DRBD devices...")
|
| 2997 |
# all child devices are in place, we can now create the DRBD devices
|
| 2998 |
try:
|
| 2999 |
for disk in anno_disks: |
| 3000 |
for (node, excl_stor) in [(pnode, p_excl_stor), (snode, s_excl_stor)]: |
| 3001 |
f_create = node == pnode |
| 3002 |
_CreateSingleBlockDev(self, node, instance, disk, info, f_create,
|
| 3003 |
excl_stor) |
| 3004 |
except errors.GenericError, e:
|
| 3005 |
feedback_fn("Initializing of DRBD devices failed;"
|
| 3006 |
" renaming back original volumes...")
|
| 3007 |
for disk in new_disks: |
| 3008 |
self.cfg.SetDiskID(disk, pnode)
|
| 3009 |
rename_back_list = [(n.children[0], o.logical_id)
|
| 3010 |
for (n, o) in zip(new_disks, instance.disks)] |
| 3011 |
result = self.rpc.call_blockdev_rename(pnode, rename_back_list)
|
| 3012 |
result.Raise("Failed to rename LVs back after error %s" % str(e)) |
| 3013 |
raise
|
| 3014 |
|
| 3015 |
# at this point, the instance has been modified
|
| 3016 |
instance.disk_template = constants.DT_DRBD8 |
| 3017 |
instance.disks = new_disks |
| 3018 |
self.cfg.Update(instance, feedback_fn)
|
| 3019 |
|
| 3020 |
# Release node locks while waiting for sync
|
| 3021 |
_ReleaseLocks(self, locking.LEVEL_NODE)
|
| 3022 |
|
| 3023 |
# disks are created, waiting for sync
|
| 3024 |
disk_abort = not _WaitForSync(self, instance, |
| 3025 |
oneshot=not self.op.wait_for_sync) |
| 3026 |
if disk_abort:
|
| 3027 |
raise errors.OpExecError("There are some degraded disks for" |
| 3028 |
" this instance, please cleanup manually")
|
| 3029 |
|
| 3030 |
# Node resource locks will be released by caller
|
| 3031 |
|
| 3032 |
def _ConvertDrbdToPlain(self, feedback_fn): |
| 3033 |
"""Converts an instance from drbd to plain.
|
| 3034 |
|
| 3035 |
"""
|
| 3036 |
instance = self.instance
|
| 3037 |
|
| 3038 |
assert len(instance.secondary_nodes) == 1 |
| 3039 |
assert instance.disk_template == constants.DT_DRBD8
|
| 3040 |
|
| 3041 |
pnode = instance.primary_node |
| 3042 |
snode = instance.secondary_nodes[0]
|
| 3043 |
feedback_fn("Converting template to plain")
|
| 3044 |
|
| 3045 |
old_disks = _AnnotateDiskParams(instance, instance.disks, self.cfg)
|
| 3046 |
new_disks = [d.children[0] for d in instance.disks] |
| 3047 |
|
| 3048 |
# copy over size, mode and name
|
| 3049 |
for parent, child in zip(old_disks, new_disks): |
| 3050 |
child.size = parent.size |
| 3051 |
child.mode = parent.mode |
| 3052 |
child.name = parent.name |
| 3053 |
|
| 3054 |
# this is a DRBD disk, return its port to the pool
|
| 3055 |
# NOTE: this must be done right before the call to cfg.Update!
|
| 3056 |
for disk in old_disks: |
| 3057 |
tcp_port = disk.logical_id[2]
|
| 3058 |
self.cfg.AddTcpUdpPort(tcp_port)
|
| 3059 |
|
| 3060 |
# update instance structure
|
| 3061 |
instance.disks = new_disks |
| 3062 |
instance.disk_template = constants.DT_PLAIN |
| 3063 |
_UpdateIvNames(0, instance.disks)
|
| 3064 |
self.cfg.Update(instance, feedback_fn)
|
| 3065 |
|
| 3066 |
# Release locks in case removing disks takes a while
|
| 3067 |
_ReleaseLocks(self, locking.LEVEL_NODE)
|
| 3068 |
|
| 3069 |
feedback_fn("Removing volumes on the secondary node...")
|
| 3070 |
for disk in old_disks: |
| 3071 |
self.cfg.SetDiskID(disk, snode)
|
| 3072 |
msg = self.rpc.call_blockdev_remove(snode, disk).fail_msg
|
| 3073 |
if msg:
|
| 3074 |
self.LogWarning("Could not remove block device %s on node %s," |
| 3075 |
" continuing anyway: %s", disk.iv_name, snode, msg)
|
| 3076 |
|
| 3077 |
feedback_fn("Removing unneeded volumes on the primary node...")
|
| 3078 |
for idx, disk in enumerate(old_disks): |
| 3079 |
meta = disk.children[1]
|
| 3080 |
self.cfg.SetDiskID(meta, pnode)
|
| 3081 |
msg = self.rpc.call_blockdev_remove(pnode, meta).fail_msg
|
| 3082 |
if msg:
|
| 3083 |
self.LogWarning("Could not remove metadata for disk %d on node %s," |
| 3084 |
" continuing anyway: %s", idx, pnode, msg)
|
| 3085 |
|
| 3086 |
def _CreateNewDisk(self, idx, params, _): |
| 3087 |
"""Creates a new disk.
|
| 3088 |
|
| 3089 |
"""
|
| 3090 |
instance = self.instance
|
| 3091 |
|
| 3092 |
# add a new disk
|
| 3093 |
if instance.disk_template in constants.DTS_FILEBASED: |
| 3094 |
(file_driver, file_path) = instance.disks[0].logical_id
|
| 3095 |
file_path = os.path.dirname(file_path) |
| 3096 |
else:
|
| 3097 |
file_driver = file_path = None
|
| 3098 |
|
| 3099 |
disk = \ |
| 3100 |
_GenerateDiskTemplate(self, instance.disk_template, instance.name,
|
| 3101 |
instance.primary_node, instance.secondary_nodes, |
| 3102 |
[params], file_path, file_driver, idx, |
| 3103 |
self.Log, self.diskparams)[0] |
| 3104 |
|
| 3105 |
info = _GetInstanceInfoText(instance) |
| 3106 |
|
| 3107 |
logging.info("Creating volume %s for instance %s",
|
| 3108 |
disk.iv_name, instance.name) |
| 3109 |
# Note: this needs to be kept in sync with _CreateDisks
|
| 3110 |
#HARDCODE
|
| 3111 |
for node in instance.all_nodes: |
| 3112 |
f_create = (node == instance.primary_node) |
| 3113 |
try:
|
| 3114 |
_CreateBlockDev(self, node, instance, disk, f_create, info, f_create)
|
| 3115 |
except errors.OpExecError, err:
|
| 3116 |
self.LogWarning("Failed to create volume %s (%s) on node '%s': %s", |
| 3117 |
disk.iv_name, disk, node, err) |
| 3118 |
|
| 3119 |
if self.cluster.prealloc_wipe_disks: |
| 3120 |
# Wipe new disk
|
| 3121 |
_WipeDisks(self, instance,
|
| 3122 |
disks=[(idx, disk, 0)])
|
| 3123 |
|
| 3124 |
return (disk, [
|
| 3125 |
("disk/%d" % idx, "add:size=%s,mode=%s" % (disk.size, disk.mode)), |
| 3126 |
]) |
| 3127 |
|
| 3128 |
@staticmethod
|
| 3129 |
def _ModifyDisk(idx, disk, params, _): |
| 3130 |
"""Modifies a disk.
|
| 3131 |
|
| 3132 |
"""
|
| 3133 |
changes = [] |
| 3134 |
mode = params.get(constants.IDISK_MODE, None)
|
| 3135 |
if mode:
|
| 3136 |
disk.mode = mode |
| 3137 |
changes.append(("disk.mode/%d" % idx, disk.mode))
|
| 3138 |
|
| 3139 |
name = params.get(constants.IDISK_NAME, None)
|
| 3140 |
disk.name = name |
| 3141 |
changes.append(("disk.name/%d" % idx, disk.name))
|
| 3142 |
|
| 3143 |
return changes
|
| 3144 |
|
| 3145 |
def _RemoveDisk(self, idx, root, _): |
| 3146 |
"""Removes a disk.
|
| 3147 |
|
| 3148 |
"""
|
| 3149 |
(anno_disk,) = _AnnotateDiskParams(self.instance, [root], self.cfg) |
| 3150 |
for node, disk in anno_disk.ComputeNodeTree(self.instance.primary_node): |
| 3151 |
self.cfg.SetDiskID(disk, node)
|
| 3152 |
msg = self.rpc.call_blockdev_remove(node, disk).fail_msg
|
| 3153 |
if msg:
|
| 3154 |
self.LogWarning("Could not remove disk/%d on node '%s': %s," |
| 3155 |
" continuing anyway", idx, node, msg)
|
| 3156 |
|
| 3157 |
# if this is a DRBD disk, return its port to the pool
|
| 3158 |
if root.dev_type in constants.LDS_DRBD: |
| 3159 |
self.cfg.AddTcpUdpPort(root.logical_id[2]) |
| 3160 |
|
| 3161 |
def _CreateNewNic(self, idx, params, private): |
| 3162 |
"""Creates data structure for a new network interface.
|
| 3163 |
|
| 3164 |
"""
|
| 3165 |
mac = params[constants.INIC_MAC] |
| 3166 |
ip = params.get(constants.INIC_IP, None)
|
| 3167 |
net = params.get(constants.INIC_NETWORK, None)
|
| 3168 |
name = params.get(constants.INIC_NAME, None)
|
| 3169 |
net_uuid = self.cfg.LookupNetwork(net)
|
| 3170 |
#TODO: not private.filled?? can a nic have no nicparams??
|
| 3171 |
nicparams = private.filled |
| 3172 |
nobj = objects.NIC(mac=mac, ip=ip, network=net_uuid, name=name, |
| 3173 |
nicparams=nicparams) |
| 3174 |
nobj.uuid = self.cfg.GenerateUniqueID(self.proc.GetECId()) |
| 3175 |
|
| 3176 |
return (nobj, [
|
| 3177 |
("nic.%d" % idx,
|
| 3178 |
"add:mac=%s,ip=%s,mode=%s,link=%s,network=%s" %
|
| 3179 |
(mac, ip, private.filled[constants.NIC_MODE], |
| 3180 |
private.filled[constants.NIC_LINK], |
| 3181 |
net)), |
| 3182 |
]) |
| 3183 |
|
| 3184 |
def _ApplyNicMods(self, idx, nic, params, private): |
| 3185 |
"""Modifies a network interface.
|
| 3186 |
|
| 3187 |
"""
|
| 3188 |
changes = [] |
| 3189 |
|
| 3190 |
for key in [constants.INIC_MAC, constants.INIC_IP, constants.INIC_NAME]: |
| 3191 |
if key in params: |
| 3192 |
changes.append(("nic.%s/%d" % (key, idx), params[key]))
|
| 3193 |
setattr(nic, key, params[key])
|
| 3194 |
|
| 3195 |
new_net = params.get(constants.INIC_NETWORK, nic.network) |
| 3196 |
new_net_uuid = self.cfg.LookupNetwork(new_net)
|
| 3197 |
if new_net_uuid != nic.network:
|
| 3198 |
changes.append(("nic.network/%d" % idx, new_net))
|
| 3199 |
nic.network = new_net_uuid |
| 3200 |
|
| 3201 |
if private.filled:
|
| 3202 |
nic.nicparams = private.filled |
| 3203 |
|
| 3204 |
for (key, val) in nic.nicparams.items(): |
| 3205 |
changes.append(("nic.%s/%d" % (key, idx), val))
|
| 3206 |
|
| 3207 |
return changes
|
| 3208 |
|
| 3209 |
def Exec(self, feedback_fn): |
| 3210 |
"""Modifies an instance.
|
| 3211 |
|
| 3212 |
All parameters take effect only at the next restart of the instance.
|
| 3213 |
|
| 3214 |
"""
|
| 3215 |
# Process here the warnings from CheckPrereq, as we don't have a
|
| 3216 |
# feedback_fn there.
|
| 3217 |
# TODO: Replace with self.LogWarning
|
| 3218 |
for warn in self.warn: |
| 3219 |
feedback_fn("WARNING: %s" % warn)
|
| 3220 |
|
| 3221 |
assert ((self.op.disk_template is None) ^ |
| 3222 |
bool(self.owned_locks(locking.LEVEL_NODE_RES))), \ |
| 3223 |
"Not owning any node resource locks"
|
| 3224 |
|
| 3225 |
result = [] |
| 3226 |
instance = self.instance
|
| 3227 |
|
| 3228 |
# New primary node
|
| 3229 |
if self.op.pnode: |
| 3230 |
instance.primary_node = self.op.pnode
|
| 3231 |
|
| 3232 |
# runtime memory
|
| 3233 |
if self.op.runtime_mem: |
| 3234 |
rpcres = self.rpc.call_instance_balloon_memory(instance.primary_node,
|
| 3235 |
instance, |
| 3236 |
self.op.runtime_mem)
|
| 3237 |
rpcres.Raise("Cannot modify instance runtime memory")
|
| 3238 |
result.append(("runtime_memory", self.op.runtime_mem)) |
| 3239 |
|
| 3240 |
# Apply disk changes
|
| 3241 |
ApplyContainerMods("disk", instance.disks, result, self.diskmod, |
| 3242 |
self._CreateNewDisk, self._ModifyDisk, self._RemoveDisk) |
| 3243 |
_UpdateIvNames(0, instance.disks)
|
| 3244 |
|
| 3245 |
if self.op.disk_template: |
| 3246 |
if __debug__:
|
| 3247 |
check_nodes = set(instance.all_nodes)
|
| 3248 |
if self.op.remote_node: |
| 3249 |
check_nodes.add(self.op.remote_node)
|
| 3250 |
for level in [locking.LEVEL_NODE, locking.LEVEL_NODE_RES]: |
| 3251 |
owned = self.owned_locks(level)
|
| 3252 |
assert not (check_nodes - owned), \ |
| 3253 |
("Not owning the correct locks, owning %r, expected at least %r" %
|
| 3254 |
(owned, check_nodes)) |
| 3255 |
|
| 3256 |
r_shut = _ShutdownInstanceDisks(self, instance)
|
| 3257 |
if not r_shut: |
| 3258 |
raise errors.OpExecError("Cannot shutdown instance disks, unable to" |
| 3259 |
" proceed with disk template conversion")
|
| 3260 |
mode = (instance.disk_template, self.op.disk_template)
|
| 3261 |
try:
|
| 3262 |
self._DISK_CONVERSIONS[mode](self, feedback_fn) |
| 3263 |
except:
|
| 3264 |
self.cfg.ReleaseDRBDMinors(instance.name)
|
| 3265 |
raise
|
| 3266 |
result.append(("disk_template", self.op.disk_template)) |
| 3267 |
|
| 3268 |
assert instance.disk_template == self.op.disk_template, \ |
| 3269 |
("Expected disk template '%s', found '%s'" %
|
| 3270 |
(self.op.disk_template, instance.disk_template))
|
| 3271 |
|
| 3272 |
# Release node and resource locks if there are any (they might already have
|
| 3273 |
# been released during disk conversion)
|
| 3274 |
_ReleaseLocks(self, locking.LEVEL_NODE)
|
| 3275 |
_ReleaseLocks(self, locking.LEVEL_NODE_RES)
|
| 3276 |
|
| 3277 |
# Apply NIC changes
|
| 3278 |
if self._new_nics is not None: |
| 3279 |
instance.nics = self._new_nics
|
| 3280 |
result.extend(self._nic_chgdesc)
|
| 3281 |
|
| 3282 |
# hvparams changes
|
| 3283 |
if self.op.hvparams: |
| 3284 |
instance.hvparams = self.hv_inst
|
| 3285 |
for key, val in self.op.hvparams.iteritems(): |
| 3286 |
result.append(("hv/%s" % key, val))
|
| 3287 |
|
| 3288 |
# beparams changes
|
| 3289 |
if self.op.beparams: |
| 3290 |
instance.beparams = self.be_inst
|
| 3291 |
for key, val in self.op.beparams.iteritems(): |
| 3292 |
result.append(("be/%s" % key, val))
|
| 3293 |
|
| 3294 |
# OS change
|
| 3295 |
if self.op.os_name: |
| 3296 |
instance.os = self.op.os_name
|
| 3297 |
|
| 3298 |
# osparams changes
|
| 3299 |
if self.op.osparams: |
| 3300 |
instance.osparams = self.os_inst
|
| 3301 |
for key, val in self.op.osparams.iteritems(): |
| 3302 |
result.append(("os/%s" % key, val))
|
| 3303 |
|
| 3304 |
if self.op.offline is None: |
| 3305 |
# Ignore
|
| 3306 |
pass
|
| 3307 |
elif self.op.offline: |
| 3308 |
# Mark instance as offline
|
| 3309 |
self.cfg.MarkInstanceOffline(instance.name)
|
| 3310 |
result.append(("admin_state", constants.ADMINST_OFFLINE))
|
| 3311 |
else:
|
| 3312 |
# Mark instance as online, but stopped
|
| 3313 |
self.cfg.MarkInstanceDown(instance.name)
|
| 3314 |
result.append(("admin_state", constants.ADMINST_DOWN))
|
| 3315 |
|
| 3316 |
self.cfg.Update(instance, feedback_fn, self.proc.GetECId()) |
| 3317 |
|
| 3318 |
assert not (self.owned_locks(locking.LEVEL_NODE_RES) or |
| 3319 |
self.owned_locks(locking.LEVEL_NODE)), \
|
| 3320 |
"All node locks should have been released by now"
|
| 3321 |
|
| 3322 |
return result
|
| 3323 |
|
| 3324 |
_DISK_CONVERSIONS = {
|
| 3325 |
(constants.DT_PLAIN, constants.DT_DRBD8): _ConvertPlainToDrbd, |
| 3326 |
(constants.DT_DRBD8, constants.DT_PLAIN): _ConvertDrbdToPlain, |
| 3327 |
} |
| 3328 |
|
| 3329 |
|
| 3330 |
class LUInstanceChangeGroup(LogicalUnit): |
| 3331 |
HPATH = "instance-change-group"
|
| 3332 |
HTYPE = constants.HTYPE_INSTANCE |
| 3333 |
REQ_BGL = False
|
| 3334 |
|
| 3335 |
def ExpandNames(self): |
| 3336 |
self.share_locks = _ShareAll()
|
| 3337 |
|
| 3338 |
self.needed_locks = {
|
| 3339 |
locking.LEVEL_NODEGROUP: [], |
| 3340 |
locking.LEVEL_NODE: [], |
| 3341 |
locking.LEVEL_NODE_ALLOC: locking.ALL_SET, |
| 3342 |
} |
| 3343 |
|
| 3344 |
self._ExpandAndLockInstance()
|
| 3345 |
|
| 3346 |
if self.op.target_groups: |
| 3347 |
self.req_target_uuids = map(self.cfg.LookupNodeGroup, |
| 3348 |
self.op.target_groups)
|
| 3349 |
else:
|
| 3350 |
self.req_target_uuids = None |
| 3351 |
|
| 3352 |
self.op.iallocator = _GetDefaultIAllocator(self.cfg, self.op.iallocator) |
| 3353 |
|
| 3354 |
def DeclareLocks(self, level): |
| 3355 |
if level == locking.LEVEL_NODEGROUP:
|
| 3356 |
assert not self.needed_locks[locking.LEVEL_NODEGROUP] |
| 3357 |
|
| 3358 |
if self.req_target_uuids: |
| 3359 |
lock_groups = set(self.req_target_uuids) |
| 3360 |
|
| 3361 |
# Lock all groups used by instance optimistically; this requires going
|
| 3362 |
# via the node before it's locked, requiring verification later on
|
| 3363 |
instance_groups = self.cfg.GetInstanceNodeGroups(self.op.instance_name) |
| 3364 |
lock_groups.update(instance_groups) |
| 3365 |
else:
|
| 3366 |
# No target groups, need to lock all of them
|
| 3367 |
lock_groups = locking.ALL_SET |
| 3368 |
|
| 3369 |
self.needed_locks[locking.LEVEL_NODEGROUP] = lock_groups
|
| 3370 |
|
| 3371 |
elif level == locking.LEVEL_NODE:
|
| 3372 |
if self.req_target_uuids: |
| 3373 |
# Lock all nodes used by instances
|
| 3374 |
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
|
| 3375 |
self._LockInstancesNodes()
|
| 3376 |
|
| 3377 |
# Lock all nodes in all potential target groups
|
| 3378 |
lock_groups = (frozenset(self.owned_locks(locking.LEVEL_NODEGROUP)) - |
| 3379 |
self.cfg.GetInstanceNodeGroups(self.op.instance_name)) |
| 3380 |
member_nodes = [node_name |
| 3381 |
for group in lock_groups |
| 3382 |
for node_name in self.cfg.GetNodeGroup(group).members] |
| 3383 |
self.needed_locks[locking.LEVEL_NODE].extend(member_nodes)
|
| 3384 |
else:
|
| 3385 |
# Lock all nodes as all groups are potential targets
|
| 3386 |
self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
|
| 3387 |
|
| 3388 |
def CheckPrereq(self): |
| 3389 |
owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE)) |
| 3390 |
owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP)) |
| 3391 |
owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE)) |
| 3392 |
|
| 3393 |
assert (self.req_target_uuids is None or |
| 3394 |
owned_groups.issuperset(self.req_target_uuids))
|
| 3395 |
assert owned_instances == set([self.op.instance_name]) |
| 3396 |
|
| 3397 |
# Get instance information
|
| 3398 |
self.instance = self.cfg.GetInstanceInfo(self.op.instance_name) |
| 3399 |
|
| 3400 |
# Check if node groups for locked instance are still correct
|
| 3401 |
assert owned_nodes.issuperset(self.instance.all_nodes), \ |
| 3402 |
("Instance %s's nodes changed while we kept the lock" %
|
| 3403 |
self.op.instance_name)
|
| 3404 |
|
| 3405 |
inst_groups = _CheckInstanceNodeGroups(self.cfg, self.op.instance_name, |
| 3406 |
owned_groups) |
| 3407 |
|
| 3408 |
if self.req_target_uuids: |
| 3409 |
# User requested specific target groups
|
| 3410 |
self.target_uuids = frozenset(self.req_target_uuids) |
| 3411 |
else:
|
| 3412 |
# All groups except those used by the instance are potential targets
|
| 3413 |
self.target_uuids = owned_groups - inst_groups
|
| 3414 |
|
| 3415 |
conflicting_groups = self.target_uuids & inst_groups
|
| 3416 |
if conflicting_groups:
|
| 3417 |
raise errors.OpPrereqError("Can't use group(s) '%s' as targets, they are" |
| 3418 |
" used by the instance '%s'" %
|
| 3419 |
(utils.CommaJoin(conflicting_groups), |
| 3420 |
self.op.instance_name),
|
| 3421 |
errors.ECODE_INVAL) |
| 3422 |
|
| 3423 |
if not self.target_uuids: |
| 3424 |
raise errors.OpPrereqError("There are no possible target groups", |
| 3425 |
errors.ECODE_INVAL) |
| 3426 |
|
| 3427 |
def BuildHooksEnv(self): |
| 3428 |
"""Build hooks env.
|
| 3429 |
|
| 3430 |
"""
|
| 3431 |
assert self.target_uuids |
| 3432 |
|
| 3433 |
env = {
|
| 3434 |
"TARGET_GROUPS": " ".join(self.target_uuids), |
| 3435 |
} |
| 3436 |
|
| 3437 |
env.update(_BuildInstanceHookEnvByObject(self, self.instance)) |
| 3438 |
|
| 3439 |
return env
|
| 3440 |
|
| 3441 |
def BuildHooksNodes(self): |
| 3442 |
"""Build hooks nodes.
|
| 3443 |
|
| 3444 |
"""
|
| 3445 |
mn = self.cfg.GetMasterNode()
|
| 3446 |
return ([mn], [mn])
|
| 3447 |
|
| 3448 |
def Exec(self, feedback_fn): |
| 3449 |
instances = list(self.owned_locks(locking.LEVEL_INSTANCE)) |
| 3450 |
|
| 3451 |
assert instances == [self.op.instance_name], "Instance not locked" |
| 3452 |
|
| 3453 |
req = iallocator.IAReqGroupChange(instances=instances, |
| 3454 |
target_groups=list(self.target_uuids)) |
| 3455 |
ial = iallocator.IAllocator(self.cfg, self.rpc, req) |
| 3456 |
|
| 3457 |
ial.Run(self.op.iallocator)
|
| 3458 |
|
| 3459 |
if not ial.success: |
| 3460 |
raise errors.OpPrereqError("Can't compute solution for changing group of" |
| 3461 |
" instance '%s' using iallocator '%s': %s" %
|
| 3462 |
(self.op.instance_name, self.op.iallocator, |
| 3463 |
ial.info), errors.ECODE_NORES) |
| 3464 |
|
| 3465 |
jobs = _LoadNodeEvacResult(self, ial.result, self.op.early_release, False) |
| 3466 |
|
| 3467 |
self.LogInfo("Iallocator returned %s job(s) for changing group of" |
| 3468 |
" instance '%s'", len(jobs), self.op.instance_name) |
| 3469 |
|
| 3470 |
return ResultWithJobs(jobs)
|