root / lib / client / gnt_instance.py @ d4117a72
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#
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# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 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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"""Instance related commands"""
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# pylint: disable=W0401,W0614,C0103
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# W0401: Wildcard import ganeti.cli
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# W0614: Unused import %s from wildcard import (since we need cli)
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# C0103: Invalid name gnt-instance
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import copy |
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import itertools |
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import simplejson |
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import logging |
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from cStringIO import StringIO |
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from ganeti.cli import * |
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from ganeti import opcodes |
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from ganeti import constants |
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from ganeti import compat |
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from ganeti import utils |
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from ganeti import errors |
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from ganeti import netutils |
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from ganeti import ssh |
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from ganeti import objects |
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from ganeti import ht |
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_EXPAND_CLUSTER = "cluster"
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_EXPAND_NODES_BOTH = "nodes"
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_EXPAND_NODES_PRI = "nodes-pri"
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_EXPAND_NODES_SEC = "nodes-sec"
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_EXPAND_NODES_BOTH_BY_TAGS = "nodes-by-tags"
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_EXPAND_NODES_PRI_BY_TAGS = "nodes-pri-by-tags"
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_EXPAND_NODES_SEC_BY_TAGS = "nodes-sec-by-tags"
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_EXPAND_INSTANCES = "instances"
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_EXPAND_INSTANCES_BY_TAGS = "instances-by-tags"
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_EXPAND_NODES_TAGS_MODES = frozenset([
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_EXPAND_NODES_BOTH_BY_TAGS, |
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_EXPAND_NODES_PRI_BY_TAGS, |
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_EXPAND_NODES_SEC_BY_TAGS, |
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]) |
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#: default list of options for L{ListInstances}
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_LIST_DEF_FIELDS = [ |
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"name", "hypervisor", "os", "pnode", "status", "oper_ram", |
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] |
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_MISSING = object()
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_ENV_OVERRIDE = frozenset(["list"]) |
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_INST_DATA_VAL = ht.TListOf(ht.TDict) |
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def _ExpandMultiNames(mode, names, client=None): |
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"""Expand the given names using the passed mode.
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For _EXPAND_CLUSTER, all instances will be returned. For
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_EXPAND_NODES_PRI/SEC, all instances having those nodes as
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primary/secondary will be returned. For _EXPAND_NODES_BOTH, all
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instances having those nodes as either primary or secondary will be
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returned. For _EXPAND_INSTANCES, the given instances will be
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returned.
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@param mode: one of L{_EXPAND_CLUSTER}, L{_EXPAND_NODES_BOTH},
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L{_EXPAND_NODES_PRI}, L{_EXPAND_NODES_SEC} or
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L{_EXPAND_INSTANCES}
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@param names: a list of names; for cluster, it must be empty,
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and for node and instance it must be a list of valid item
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names (short names are valid as usual, e.g. node1 instead of
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node1.example.com)
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@rtype: list
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@return: the list of names after the expansion
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@raise errors.ProgrammerError: for unknown selection type
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@raise errors.OpPrereqError: for invalid input parameters
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"""
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# pylint: disable=W0142
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if client is None: |
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client = GetClient() |
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if mode == _EXPAND_CLUSTER:
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if names:
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raise errors.OpPrereqError("Cluster filter mode takes no arguments", |
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errors.ECODE_INVAL) |
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idata = client.QueryInstances([], ["name"], False) |
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inames = [row[0] for row in idata] |
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elif (mode in _EXPAND_NODES_TAGS_MODES or |
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mode in (_EXPAND_NODES_BOTH, _EXPAND_NODES_PRI, _EXPAND_NODES_SEC)):
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if mode in _EXPAND_NODES_TAGS_MODES: |
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if not names: |
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raise errors.OpPrereqError("No node tags passed", errors.ECODE_INVAL) |
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ndata = client.QueryNodes([], ["name", "pinst_list", |
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"sinst_list", "tags"], False) |
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ndata = [row for row in ndata if set(row[3]).intersection(names)] |
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else:
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if not names: |
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raise errors.OpPrereqError("No node names passed", errors.ECODE_INVAL) |
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ndata = client.QueryNodes(names, ["name", "pinst_list", "sinst_list"], |
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False)
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ipri = [row[1] for row in ndata] |
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pri_names = list(itertools.chain(*ipri))
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isec = [row[2] for row in ndata] |
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sec_names = list(itertools.chain(*isec))
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if mode in (_EXPAND_NODES_BOTH, _EXPAND_NODES_BOTH_BY_TAGS): |
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inames = pri_names + sec_names |
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elif mode in (_EXPAND_NODES_PRI, _EXPAND_NODES_PRI_BY_TAGS): |
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inames = pri_names |
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elif mode in (_EXPAND_NODES_SEC, _EXPAND_NODES_SEC_BY_TAGS): |
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inames = sec_names |
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else:
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raise errors.ProgrammerError("Unhandled shutdown type") |
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elif mode == _EXPAND_INSTANCES:
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if not names: |
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raise errors.OpPrereqError("No instance names passed", |
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errors.ECODE_INVAL) |
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idata = client.QueryInstances(names, ["name"], False) |
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inames = [row[0] for row in idata] |
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elif mode == _EXPAND_INSTANCES_BY_TAGS:
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if not names: |
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raise errors.OpPrereqError("No instance tags passed", |
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errors.ECODE_INVAL) |
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idata = client.QueryInstances([], ["name", "tags"], False) |
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inames = [row[0] for row in idata if set(row[1]).intersection(names)] |
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else:
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raise errors.OpPrereqError("Unknown mode '%s'" % mode, errors.ECODE_INVAL) |
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return inames
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def _EnsureInstancesExist(client, names): |
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"""Check for and ensure the given instance names exist.
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This function will raise an OpPrereqError in case they don't
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exist. Otherwise it will exit cleanly.
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@type client: L{ganeti.luxi.Client}
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@param client: the client to use for the query
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@type names: list
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@param names: the list of instance names to query
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@raise errors.OpPrereqError: in case any instance is missing
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"""
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# TODO: change LUInstanceQuery to that it actually returns None
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# instead of raising an exception, or devise a better mechanism
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result = client.QueryInstances(names, ["name"], False) |
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for orig_name, row in zip(names, result): |
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if row[0] is None: |
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raise errors.OpPrereqError("Instance '%s' does not exist" % orig_name, |
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errors.ECODE_NOENT) |
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def GenericManyOps(operation, fn): |
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"""Generic multi-instance operations.
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The will return a wrapper that processes the options and arguments
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given, and uses the passed function to build the opcode needed for
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the specific operation. Thus all the generic loop/confirmation code
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is abstracted into this function.
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"""
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def realfn(opts, args): |
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if opts.multi_mode is None: |
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opts.multi_mode = _EXPAND_INSTANCES |
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cl = GetClient() |
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inames = _ExpandMultiNames(opts.multi_mode, args, client=cl) |
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if not inames: |
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if opts.multi_mode == _EXPAND_CLUSTER:
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ToStdout("Cluster is empty, no instances to shutdown")
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return 0 |
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raise errors.OpPrereqError("Selection filter does not match" |
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" any instances", errors.ECODE_INVAL)
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multi_on = opts.multi_mode != _EXPAND_INSTANCES or len(inames) > 1 |
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if not (opts.force_multi or not multi_on |
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or ConfirmOperation(inames, "instances", operation)): |
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return 1 |
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jex = JobExecutor(verbose=multi_on, cl=cl, opts=opts) |
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for name in inames: |
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op = fn(name, opts) |
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jex.QueueJob(name, op) |
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results = jex.WaitOrShow(not opts.submit_only)
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rcode = compat.all(row[0] for row in results) |
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return int(not rcode) |
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return realfn
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def ListInstances(opts, args): |
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"""List instances and their properties.
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@param opts: the command line options selected by the user
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@type args: list
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@param args: should be an empty list
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@rtype: int
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@return: the desired exit code
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"""
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selected_fields = ParseFields(opts.output, _LIST_DEF_FIELDS) |
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fmtoverride = dict.fromkeys(["tags", "disk.sizes", "nic.macs", "nic.ips", |
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"nic.modes", "nic.links", "nic.bridges", |
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"nic.networks",
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"snodes", "snodes.group", "snodes.group.uuid"], |
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(lambda value: ",".join(str(item) |
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for item in value), |
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False))
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return GenericList(constants.QR_INSTANCE, selected_fields, args, opts.units,
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opts.separator, not opts.no_headers,
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format_override=fmtoverride, verbose=opts.verbose, |
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force_filter=opts.force_filter) |
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def ListInstanceFields(opts, args): |
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"""List instance fields.
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@param opts: the command line options selected by the user
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@type args: list
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@param args: fields to list, or empty for all
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@rtype: int
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@return: the desired exit code
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"""
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return GenericListFields(constants.QR_INSTANCE, args, opts.separator,
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not opts.no_headers)
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def AddInstance(opts, args): |
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"""Add an instance to the cluster.
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This is just a wrapper over GenericInstanceCreate.
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"""
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return GenericInstanceCreate(constants.INSTANCE_CREATE, opts, args)
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def BatchCreate(opts, args): |
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"""Create instances using a definition file.
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This function reads a json file with L{opcodes.OpInstanceCreate}
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serialisations.
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@param opts: the command line options selected by the user
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@type args: list
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@param args: should contain one element, the json filename
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@rtype: int
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@return: the desired exit code
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"""
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(json_filename,) = args |
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cl = GetClient() |
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try:
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instance_data = simplejson.loads(utils.ReadFile(json_filename)) |
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except Exception, err: # pylint: disable=W0703 |
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ToStderr("Can't parse the instance definition file: %s" % str(err)) |
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return 1 |
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if not _INST_DATA_VAL(instance_data): |
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ToStderr("The instance definition file is not %s" % _INST_DATA_VAL)
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return 1 |
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instances = [] |
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possible_params = set(opcodes.OpInstanceCreate.GetAllSlots())
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for (idx, inst) in enumerate(instance_data): |
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unknown = set(inst.keys()) - possible_params
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if unknown:
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# TODO: Suggest closest match for more user friendly experience
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raise errors.OpPrereqError("Unknown fields in definition %s: %s" % |
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(idx, utils.CommaJoin(unknown)), |
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errors.ECODE_INVAL) |
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op = opcodes.OpInstanceCreate(**inst) # pylint: disable=W0142
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op.Validate(False)
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instances.append(op) |
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op = opcodes.OpInstanceMultiAlloc(iallocator=opts.iallocator, |
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instances=instances) |
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result = SubmitOrSend(op, opts, cl=cl) |
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# Keep track of submitted jobs
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jex = JobExecutor(cl=cl, opts=opts) |
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for (status, job_id) in result[constants.JOB_IDS_KEY]: |
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jex.AddJobId(None, status, job_id)
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results = jex.GetResults() |
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bad_cnt = len([row for row in results if not row[0]]) |
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if bad_cnt == 0: |
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ToStdout("All instances created successfully.")
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rcode = constants.EXIT_SUCCESS |
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else:
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ToStdout("There were %s errors during the creation.", bad_cnt)
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rcode = constants.EXIT_FAILURE |
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return rcode
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def ReinstallInstance(opts, args): |
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"""Reinstall an instance.
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@param opts: the command line options selected by the user
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@type args: list
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@param args: should contain only one element, the name of the
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instance to be reinstalled
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@rtype: int
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@return: the desired exit code
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"""
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# first, compute the desired name list
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if opts.multi_mode is None: |
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opts.multi_mode = _EXPAND_INSTANCES |
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inames = _ExpandMultiNames(opts.multi_mode, args) |
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if not inames: |
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raise errors.OpPrereqError("Selection filter does not match any instances", |
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errors.ECODE_INVAL) |
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# second, if requested, ask for an OS
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if opts.select_os is True: |
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op = opcodes.OpOsDiagnose(output_fields=["name", "variants"], names=[]) |
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result = SubmitOpCode(op, opts=opts) |
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if not result: |
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ToStdout("Can't get the OS list")
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return 1 |
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ToStdout("Available OS templates:")
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number = 0
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choices = [] |
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for (name, variants) in result: |
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for entry in CalculateOSNames(name, variants): |
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ToStdout("%3s: %s", number, entry)
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choices.append(("%s" % number, entry, entry))
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number += 1
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choices.append(("x", "exit", "Exit gnt-instance reinstall")) |
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selected = AskUser("Enter OS template number (or x to abort):",
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choices) |
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if selected == "exit": |
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ToStderr("User aborted reinstall, exiting")
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return 1 |
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os_name = selected |
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os_msg = "change the OS to '%s'" % selected
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else:
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os_name = opts.os |
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if opts.os is not None: |
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os_msg = "change the OS to '%s'" % os_name
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else:
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os_msg = "keep the same OS"
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# third, get confirmation: multi-reinstall requires --force-multi,
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# single-reinstall either --force or --force-multi (--force-multi is
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# a stronger --force)
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multi_on = opts.multi_mode != _EXPAND_INSTANCES or len(inames) > 1 |
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if multi_on:
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warn_msg = ("Note: this will remove *all* data for the"
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" below instances! It will %s.\n" % os_msg)
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if not (opts.force_multi or |
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ConfirmOperation(inames, "instances", "reinstall", extra=warn_msg)): |
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return 1 |
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else:
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if not (opts.force or opts.force_multi): |
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usertext = ("This will reinstall the instance '%s' (and %s) which"
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" removes all data. Continue?") % (inames[0], os_msg) |
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if not AskUser(usertext): |
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return 1 |
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jex = JobExecutor(verbose=multi_on, opts=opts) |
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for instance_name in inames: |
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op = opcodes.OpInstanceReinstall(instance_name=instance_name, |
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os_type=os_name, |
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force_variant=opts.force_variant, |
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osparams=opts.osparams) |
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jex.QueueJob(instance_name, op) |
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results = jex.WaitOrShow(not opts.submit_only)
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if compat.all(map(compat.fst, results)): |
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return constants.EXIT_SUCCESS
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else:
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return constants.EXIT_FAILURE
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def RemoveInstance(opts, args): |
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"""Remove an instance.
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@param opts: the command line options selected by the user
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@type args: list
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@param args: should contain only one element, the name of
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the instance to be removed
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@rtype: int
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@return: the desired exit code
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"""
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instance_name = args[0]
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force = opts.force |
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cl = GetClient() |
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if not force: |
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_EnsureInstancesExist(cl, [instance_name]) |
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usertext = ("This will remove the volumes of the instance %s"
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" (including mirrors), thus removing all the data"
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" of the instance. Continue?") % instance_name
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if not AskUser(usertext): |
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return 1 |
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op = opcodes.OpInstanceRemove(instance_name=instance_name, |
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ignore_failures=opts.ignore_failures, |
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shutdown_timeout=opts.shutdown_timeout) |
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SubmitOrSend(op, opts, cl=cl) |
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return 0 |
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def RenameInstance(opts, args): |
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"""Rename an instance.
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@param opts: the command line options selected by the user
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@type args: list
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@param args: should contain two elements, the old and the
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new instance names
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@rtype: int
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@return: the desired exit code
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"""
|
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if not opts.name_check: |
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if not AskUser("As you disabled the check of the DNS entry, please verify" |
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" that '%s' is a FQDN. Continue?" % args[1]): |
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return 1 |
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op = opcodes.OpInstanceRename(instance_name=args[0],
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new_name=args[1],
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ip_check=opts.ip_check, |
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name_check=opts.name_check) |
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result = SubmitOrSend(op, opts) |
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if result:
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ToStdout("Instance '%s' renamed to '%s'", args[0], result) |
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return 0 |
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|
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|
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def ActivateDisks(opts, args): |
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"""Activate an instance's disks.
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|
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This serves two purposes:
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- it allows (as long as the instance is not running)
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mounting the disks and modifying them from the node
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- it repairs inactive secondary drbds
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|
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@param opts: the command line options selected by the user
|
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@type args: list
|
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@param args: should contain only one element, the instance name
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@rtype: int
|
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@return: the desired exit code
|
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|
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"""
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instance_name = args[0]
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op = opcodes.OpInstanceActivateDisks(instance_name=instance_name, |
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ignore_size=opts.ignore_size, |
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wait_for_sync=opts.wait_for_sync) |
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disks_info = SubmitOrSend(op, opts) |
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for host, iname, nname in disks_info: |
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ToStdout("%s:%s:%s", host, iname, nname)
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return 0 |
491 |
|
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|
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def DeactivateDisks(opts, args): |
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"""Deactivate an instance's disks.
|
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|
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This function takes the instance name, looks for its primary node
|
497 |
and the tries to shutdown its block devices on that node.
|
498 |
|
499 |
@param opts: the command line options selected by the user
|
500 |
@type args: list
|
501 |
@param args: should contain only one element, the instance name
|
502 |
@rtype: int
|
503 |
@return: the desired exit code
|
504 |
|
505 |
"""
|
506 |
instance_name = args[0]
|
507 |
op = opcodes.OpInstanceDeactivateDisks(instance_name=instance_name, |
508 |
force=opts.force) |
509 |
SubmitOrSend(op, opts) |
510 |
return 0 |
511 |
|
512 |
|
513 |
def RecreateDisks(opts, args): |
514 |
"""Recreate an instance's disks.
|
515 |
|
516 |
@param opts: the command line options selected by the user
|
517 |
@type args: list
|
518 |
@param args: should contain only one element, the instance name
|
519 |
@rtype: int
|
520 |
@return: the desired exit code
|
521 |
|
522 |
"""
|
523 |
instance_name = args[0]
|
524 |
|
525 |
disks = [] |
526 |
|
527 |
if opts.disks:
|
528 |
for didx, ddict in opts.disks: |
529 |
didx = int(didx)
|
530 |
|
531 |
if not ht.TDict(ddict): |
532 |
msg = "Invalid disk/%d value: expected dict, got %s" % (didx, ddict)
|
533 |
raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
|
534 |
|
535 |
if constants.IDISK_SIZE in ddict: |
536 |
try:
|
537 |
ddict[constants.IDISK_SIZE] = \ |
538 |
utils.ParseUnit(ddict[constants.IDISK_SIZE]) |
539 |
except ValueError, err: |
540 |
raise errors.OpPrereqError("Invalid disk size for disk %d: %s" % |
541 |
(didx, err), errors.ECODE_INVAL) |
542 |
|
543 |
disks.append((didx, ddict)) |
544 |
|
545 |
# TODO: Verify modifyable parameters (already done in
|
546 |
# LUInstanceRecreateDisks, but it'd be nice to have in the client)
|
547 |
|
548 |
if opts.node:
|
549 |
if opts.iallocator:
|
550 |
msg = "At most one of either --nodes or --iallocator can be passed"
|
551 |
raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
|
552 |
pnode, snode = SplitNodeOption(opts.node) |
553 |
nodes = [pnode] |
554 |
if snode is not None: |
555 |
nodes.append(snode) |
556 |
else:
|
557 |
nodes = [] |
558 |
|
559 |
op = opcodes.OpInstanceRecreateDisks(instance_name=instance_name, |
560 |
disks=disks, nodes=nodes, |
561 |
iallocator=opts.iallocator) |
562 |
SubmitOrSend(op, opts) |
563 |
|
564 |
return 0 |
565 |
|
566 |
|
567 |
def GrowDisk(opts, args): |
568 |
"""Grow an instance's disks.
|
569 |
|
570 |
@param opts: the command line options selected by the user
|
571 |
@type args: list
|
572 |
@param args: should contain three elements, the target instance name,
|
573 |
the target disk id, and the target growth
|
574 |
@rtype: int
|
575 |
@return: the desired exit code
|
576 |
|
577 |
"""
|
578 |
instance = args[0]
|
579 |
disk = args[1]
|
580 |
try:
|
581 |
disk = int(disk)
|
582 |
except (TypeError, ValueError), err: |
583 |
raise errors.OpPrereqError("Invalid disk index: %s" % str(err), |
584 |
errors.ECODE_INVAL) |
585 |
try:
|
586 |
amount = utils.ParseUnit(args[2])
|
587 |
except errors.UnitParseError:
|
588 |
raise errors.OpPrereqError("Can't parse the given amount '%s'" % args[2], |
589 |
errors.ECODE_INVAL) |
590 |
op = opcodes.OpInstanceGrowDisk(instance_name=instance, |
591 |
disk=disk, amount=amount, |
592 |
wait_for_sync=opts.wait_for_sync, |
593 |
absolute=opts.absolute) |
594 |
SubmitOrSend(op, opts) |
595 |
return 0 |
596 |
|
597 |
|
598 |
def _StartupInstance(name, opts): |
599 |
"""Startup instances.
|
600 |
|
601 |
This returns the opcode to start an instance, and its decorator will
|
602 |
wrap this into a loop starting all desired instances.
|
603 |
|
604 |
@param name: the name of the instance to act on
|
605 |
@param opts: the command line options selected by the user
|
606 |
@return: the opcode needed for the operation
|
607 |
|
608 |
"""
|
609 |
op = opcodes.OpInstanceStartup(instance_name=name, |
610 |
force=opts.force, |
611 |
ignore_offline_nodes=opts.ignore_offline, |
612 |
no_remember=opts.no_remember, |
613 |
startup_paused=opts.startup_paused) |
614 |
# do not add these parameters to the opcode unless they're defined
|
615 |
if opts.hvparams:
|
616 |
op.hvparams = opts.hvparams |
617 |
if opts.beparams:
|
618 |
op.beparams = opts.beparams |
619 |
return op
|
620 |
|
621 |
|
622 |
def _RebootInstance(name, opts): |
623 |
"""Reboot instance(s).
|
624 |
|
625 |
This returns the opcode to reboot an instance, and its decorator
|
626 |
will wrap this into a loop rebooting all desired instances.
|
627 |
|
628 |
@param name: the name of the instance to act on
|
629 |
@param opts: the command line options selected by the user
|
630 |
@return: the opcode needed for the operation
|
631 |
|
632 |
"""
|
633 |
return opcodes.OpInstanceReboot(instance_name=name,
|
634 |
reboot_type=opts.reboot_type, |
635 |
ignore_secondaries=opts.ignore_secondaries, |
636 |
shutdown_timeout=opts.shutdown_timeout) |
637 |
|
638 |
|
639 |
def _ShutdownInstance(name, opts): |
640 |
"""Shutdown an instance.
|
641 |
|
642 |
This returns the opcode to shutdown an instance, and its decorator
|
643 |
will wrap this into a loop shutting down all desired instances.
|
644 |
|
645 |
@param name: the name of the instance to act on
|
646 |
@param opts: the command line options selected by the user
|
647 |
@return: the opcode needed for the operation
|
648 |
|
649 |
"""
|
650 |
return opcodes.OpInstanceShutdown(instance_name=name,
|
651 |
timeout=opts.timeout, |
652 |
ignore_offline_nodes=opts.ignore_offline, |
653 |
no_remember=opts.no_remember) |
654 |
|
655 |
|
656 |
def ReplaceDisks(opts, args): |
657 |
"""Replace the disks of an instance
|
658 |
|
659 |
@param opts: the command line options selected by the user
|
660 |
@type args: list
|
661 |
@param args: should contain only one element, the instance name
|
662 |
@rtype: int
|
663 |
@return: the desired exit code
|
664 |
|
665 |
"""
|
666 |
new_2ndary = opts.dst_node |
667 |
iallocator = opts.iallocator |
668 |
if opts.disks is None: |
669 |
disks = [] |
670 |
else:
|
671 |
try:
|
672 |
disks = [int(i) for i in opts.disks.split(",")] |
673 |
except (TypeError, ValueError), err: |
674 |
raise errors.OpPrereqError("Invalid disk index passed: %s" % str(err), |
675 |
errors.ECODE_INVAL) |
676 |
cnt = [opts.on_primary, opts.on_secondary, opts.auto, |
677 |
new_2ndary is not None, iallocator is not None].count(True) |
678 |
if cnt != 1: |
679 |
raise errors.OpPrereqError("One and only one of the -p, -s, -a, -n and -I" |
680 |
" options must be passed", errors.ECODE_INVAL)
|
681 |
elif opts.on_primary:
|
682 |
mode = constants.REPLACE_DISK_PRI |
683 |
elif opts.on_secondary:
|
684 |
mode = constants.REPLACE_DISK_SEC |
685 |
elif opts.auto:
|
686 |
mode = constants.REPLACE_DISK_AUTO |
687 |
if disks:
|
688 |
raise errors.OpPrereqError("Cannot specify disks when using automatic" |
689 |
" mode", errors.ECODE_INVAL)
|
690 |
elif new_2ndary is not None or iallocator is not None: |
691 |
# replace secondary
|
692 |
mode = constants.REPLACE_DISK_CHG |
693 |
|
694 |
op = opcodes.OpInstanceReplaceDisks(instance_name=args[0], disks=disks,
|
695 |
remote_node=new_2ndary, mode=mode, |
696 |
iallocator=iallocator, |
697 |
early_release=opts.early_release, |
698 |
ignore_ipolicy=opts.ignore_ipolicy) |
699 |
SubmitOrSend(op, opts) |
700 |
return 0 |
701 |
|
702 |
|
703 |
def FailoverInstance(opts, args): |
704 |
"""Failover an instance.
|
705 |
|
706 |
The failover is done by shutting it down on its present node and
|
707 |
starting it on the secondary.
|
708 |
|
709 |
@param opts: the command line options selected by the user
|
710 |
@type args: list
|
711 |
@param args: should contain only one element, the instance name
|
712 |
@rtype: int
|
713 |
@return: the desired exit code
|
714 |
|
715 |
"""
|
716 |
cl = GetClient() |
717 |
instance_name = args[0]
|
718 |
force = opts.force |
719 |
iallocator = opts.iallocator |
720 |
target_node = opts.dst_node |
721 |
|
722 |
if iallocator and target_node: |
723 |
raise errors.OpPrereqError("Specify either an iallocator (-I), or a target" |
724 |
" node (-n) but not both", errors.ECODE_INVAL)
|
725 |
|
726 |
if not force: |
727 |
_EnsureInstancesExist(cl, [instance_name]) |
728 |
|
729 |
usertext = ("Failover will happen to image %s."
|
730 |
" This requires a shutdown of the instance. Continue?" %
|
731 |
(instance_name,)) |
732 |
if not AskUser(usertext): |
733 |
return 1 |
734 |
|
735 |
op = opcodes.OpInstanceFailover(instance_name=instance_name, |
736 |
ignore_consistency=opts.ignore_consistency, |
737 |
shutdown_timeout=opts.shutdown_timeout, |
738 |
iallocator=iallocator, |
739 |
target_node=target_node, |
740 |
ignore_ipolicy=opts.ignore_ipolicy) |
741 |
SubmitOrSend(op, opts, cl=cl) |
742 |
return 0 |
743 |
|
744 |
|
745 |
def MigrateInstance(opts, args): |
746 |
"""Migrate an instance.
|
747 |
|
748 |
The migrate is done without shutdown.
|
749 |
|
750 |
@param opts: the command line options selected by the user
|
751 |
@type args: list
|
752 |
@param args: should contain only one element, the instance name
|
753 |
@rtype: int
|
754 |
@return: the desired exit code
|
755 |
|
756 |
"""
|
757 |
cl = GetClient() |
758 |
instance_name = args[0]
|
759 |
force = opts.force |
760 |
iallocator = opts.iallocator |
761 |
target_node = opts.dst_node |
762 |
|
763 |
if iallocator and target_node: |
764 |
raise errors.OpPrereqError("Specify either an iallocator (-I), or a target" |
765 |
" node (-n) but not both", errors.ECODE_INVAL)
|
766 |
|
767 |
if not force: |
768 |
_EnsureInstancesExist(cl, [instance_name]) |
769 |
|
770 |
if opts.cleanup:
|
771 |
usertext = ("Instance %s will be recovered from a failed migration."
|
772 |
" Note that the migration procedure (including cleanup)" %
|
773 |
(instance_name,)) |
774 |
else:
|
775 |
usertext = ("Instance %s will be migrated. Note that migration" %
|
776 |
(instance_name,)) |
777 |
usertext += (" might impact the instance if anything goes wrong"
|
778 |
" (e.g. due to bugs in the hypervisor). Continue?")
|
779 |
if not AskUser(usertext): |
780 |
return 1 |
781 |
|
782 |
# this should be removed once --non-live is deprecated
|
783 |
if not opts.live and opts.migration_mode is not None: |
784 |
raise errors.OpPrereqError("Only one of the --non-live and " |
785 |
"--migration-mode options can be passed",
|
786 |
errors.ECODE_INVAL) |
787 |
if not opts.live: # --non-live passed |
788 |
mode = constants.HT_MIGRATION_NONLIVE |
789 |
else:
|
790 |
mode = opts.migration_mode |
791 |
|
792 |
op = opcodes.OpInstanceMigrate(instance_name=instance_name, mode=mode, |
793 |
cleanup=opts.cleanup, iallocator=iallocator, |
794 |
target_node=target_node, |
795 |
allow_failover=opts.allow_failover, |
796 |
allow_runtime_changes=opts.allow_runtime_chgs, |
797 |
ignore_ipolicy=opts.ignore_ipolicy) |
798 |
SubmitOrSend(op, cl=cl, opts=opts) |
799 |
return 0 |
800 |
|
801 |
|
802 |
def MoveInstance(opts, args): |
803 |
"""Move an instance.
|
804 |
|
805 |
@param opts: the command line options selected by the user
|
806 |
@type args: list
|
807 |
@param args: should contain only one element, the instance name
|
808 |
@rtype: int
|
809 |
@return: the desired exit code
|
810 |
|
811 |
"""
|
812 |
cl = GetClient() |
813 |
instance_name = args[0]
|
814 |
force = opts.force |
815 |
|
816 |
if not force: |
817 |
usertext = ("Instance %s will be moved."
|
818 |
" This requires a shutdown of the instance. Continue?" %
|
819 |
(instance_name,)) |
820 |
if not AskUser(usertext): |
821 |
return 1 |
822 |
|
823 |
op = opcodes.OpInstanceMove(instance_name=instance_name, |
824 |
target_node=opts.node, |
825 |
shutdown_timeout=opts.shutdown_timeout, |
826 |
ignore_consistency=opts.ignore_consistency, |
827 |
ignore_ipolicy=opts.ignore_ipolicy) |
828 |
SubmitOrSend(op, opts, cl=cl) |
829 |
return 0 |
830 |
|
831 |
|
832 |
def ConnectToInstanceConsole(opts, args): |
833 |
"""Connect to the console of an instance.
|
834 |
|
835 |
@param opts: the command line options selected by the user
|
836 |
@type args: list
|
837 |
@param args: should contain only one element, the instance name
|
838 |
@rtype: int
|
839 |
@return: the desired exit code
|
840 |
|
841 |
"""
|
842 |
instance_name = args[0]
|
843 |
|
844 |
cl = GetClient() |
845 |
try:
|
846 |
cluster_name = cl.QueryConfigValues(["cluster_name"])[0] |
847 |
((console_data, oper_state), ) = \ |
848 |
cl.QueryInstances([instance_name], ["console", "oper_state"], False) |
849 |
finally:
|
850 |
# Ensure client connection is closed while external commands are run
|
851 |
cl.Close() |
852 |
|
853 |
del cl
|
854 |
|
855 |
if not console_data: |
856 |
if oper_state:
|
857 |
# Instance is running
|
858 |
raise errors.OpExecError("Console information for instance %s is" |
859 |
" unavailable" % instance_name)
|
860 |
else:
|
861 |
raise errors.OpExecError("Instance %s is not running, can't get console" % |
862 |
instance_name) |
863 |
|
864 |
return _DoConsole(objects.InstanceConsole.FromDict(console_data),
|
865 |
opts.show_command, cluster_name) |
866 |
|
867 |
|
868 |
def _DoConsole(console, show_command, cluster_name, feedback_fn=ToStdout, |
869 |
_runcmd_fn=utils.RunCmd): |
870 |
"""Acts based on the result of L{opcodes.OpInstanceConsole}.
|
871 |
|
872 |
@type console: L{objects.InstanceConsole}
|
873 |
@param console: Console object
|
874 |
@type show_command: bool
|
875 |
@param show_command: Whether to just display commands
|
876 |
@type cluster_name: string
|
877 |
@param cluster_name: Cluster name as retrieved from master daemon
|
878 |
|
879 |
"""
|
880 |
assert console.Validate()
|
881 |
|
882 |
if console.kind == constants.CONS_MESSAGE:
|
883 |
feedback_fn(console.message) |
884 |
elif console.kind == constants.CONS_VNC:
|
885 |
feedback_fn("Instance %s has VNC listening on %s:%s (display %s),"
|
886 |
" URL <vnc://%s:%s/>",
|
887 |
console.instance, console.host, console.port, |
888 |
console.display, console.host, console.port) |
889 |
elif console.kind == constants.CONS_SPICE:
|
890 |
feedback_fn("Instance %s has SPICE listening on %s:%s", console.instance,
|
891 |
console.host, console.port) |
892 |
elif console.kind == constants.CONS_SSH:
|
893 |
# Convert to string if not already one
|
894 |
if isinstance(console.command, basestring): |
895 |
cmd = console.command |
896 |
else:
|
897 |
cmd = utils.ShellQuoteArgs(console.command) |
898 |
|
899 |
srun = ssh.SshRunner(cluster_name=cluster_name) |
900 |
ssh_cmd = srun.BuildCmd(console.host, console.user, cmd, |
901 |
batch=True, quiet=False, tty=True) |
902 |
|
903 |
if show_command:
|
904 |
feedback_fn(utils.ShellQuoteArgs(ssh_cmd)) |
905 |
else:
|
906 |
result = _runcmd_fn(ssh_cmd, interactive=True)
|
907 |
if result.failed:
|
908 |
logging.error("Console command \"%s\" failed with reason '%s' and"
|
909 |
" output %r", result.cmd, result.fail_reason,
|
910 |
result.output) |
911 |
raise errors.OpExecError("Connection to console of instance %s failed," |
912 |
" please check cluster configuration" %
|
913 |
console.instance) |
914 |
else:
|
915 |
raise errors.GenericError("Unknown console type '%s'" % console.kind) |
916 |
|
917 |
return constants.EXIT_SUCCESS
|
918 |
|
919 |
|
920 |
def _FormatLogicalID(dev_type, logical_id, roman): |
921 |
"""Formats the logical_id of a disk.
|
922 |
|
923 |
"""
|
924 |
if dev_type == constants.LD_DRBD8:
|
925 |
node_a, node_b, port, minor_a, minor_b, key = logical_id |
926 |
data = [ |
927 |
("nodeA", "%s, minor=%s" % (node_a, compat.TryToRoman(minor_a, |
928 |
convert=roman))), |
929 |
("nodeB", "%s, minor=%s" % (node_b, compat.TryToRoman(minor_b, |
930 |
convert=roman))), |
931 |
("port", compat.TryToRoman(port, convert=roman)),
|
932 |
("auth key", key),
|
933 |
] |
934 |
elif dev_type == constants.LD_LV:
|
935 |
vg_name, lv_name = logical_id |
936 |
data = ["%s/%s" % (vg_name, lv_name)]
|
937 |
else:
|
938 |
data = [str(logical_id)]
|
939 |
|
940 |
return data
|
941 |
|
942 |
|
943 |
def _FormatBlockDevInfo(idx, top_level, dev, roman): |
944 |
"""Show block device information.
|
945 |
|
946 |
This is only used by L{ShowInstanceConfig}, but it's too big to be
|
947 |
left for an inline definition.
|
948 |
|
949 |
@type idx: int
|
950 |
@param idx: the index of the current disk
|
951 |
@type top_level: boolean
|
952 |
@param top_level: if this a top-level disk?
|
953 |
@type dev: dict
|
954 |
@param dev: dictionary with disk information
|
955 |
@type roman: boolean
|
956 |
@param roman: whether to try to use roman integers
|
957 |
@return: a list of either strings, tuples or lists
|
958 |
(which should be formatted at a higher indent level)
|
959 |
|
960 |
"""
|
961 |
def helper(dtype, status): |
962 |
"""Format one line for physical device status.
|
963 |
|
964 |
@type dtype: str
|
965 |
@param dtype: a constant from the L{constants.LDS_BLOCK} set
|
966 |
@type status: tuple
|
967 |
@param status: a tuple as returned from L{backend.FindBlockDevice}
|
968 |
@return: the string representing the status
|
969 |
|
970 |
"""
|
971 |
if not status: |
972 |
return "not active" |
973 |
txt = ""
|
974 |
(path, major, minor, syncp, estt, degr, ldisk_status) = status |
975 |
if major is None: |
976 |
major_string = "N/A"
|
977 |
else:
|
978 |
major_string = str(compat.TryToRoman(major, convert=roman))
|
979 |
|
980 |
if minor is None: |
981 |
minor_string = "N/A"
|
982 |
else:
|
983 |
minor_string = str(compat.TryToRoman(minor, convert=roman))
|
984 |
|
985 |
txt += ("%s (%s:%s)" % (path, major_string, minor_string))
|
986 |
if dtype in (constants.LD_DRBD8, ): |
987 |
if syncp is not None: |
988 |
sync_text = "*RECOVERING* %5.2f%%," % syncp
|
989 |
if estt:
|
990 |
sync_text += " ETA %ss" % compat.TryToRoman(estt, convert=roman)
|
991 |
else:
|
992 |
sync_text += " ETA unknown"
|
993 |
else:
|
994 |
sync_text = "in sync"
|
995 |
if degr:
|
996 |
degr_text = "*DEGRADED*"
|
997 |
else:
|
998 |
degr_text = "ok"
|
999 |
if ldisk_status == constants.LDS_FAULTY:
|
1000 |
ldisk_text = " *MISSING DISK*"
|
1001 |
elif ldisk_status == constants.LDS_UNKNOWN:
|
1002 |
ldisk_text = " *UNCERTAIN STATE*"
|
1003 |
else:
|
1004 |
ldisk_text = ""
|
1005 |
txt += (" %s, status %s%s" % (sync_text, degr_text, ldisk_text))
|
1006 |
elif dtype == constants.LD_LV:
|
1007 |
if ldisk_status == constants.LDS_FAULTY:
|
1008 |
ldisk_text = " *FAILED* (failed drive?)"
|
1009 |
else:
|
1010 |
ldisk_text = ""
|
1011 |
txt += ldisk_text |
1012 |
return txt
|
1013 |
|
1014 |
# the header
|
1015 |
if top_level:
|
1016 |
if dev["iv_name"] is not None: |
1017 |
txt = dev["iv_name"]
|
1018 |
else:
|
1019 |
txt = "disk %s" % compat.TryToRoman(idx, convert=roman)
|
1020 |
else:
|
1021 |
txt = "child %s" % compat.TryToRoman(idx, convert=roman)
|
1022 |
if isinstance(dev["size"], int): |
1023 |
nice_size = utils.FormatUnit(dev["size"], "h") |
1024 |
else:
|
1025 |
nice_size = dev["size"]
|
1026 |
d1 = ["- %s: %s, size %s" % (txt, dev["dev_type"], nice_size)] |
1027 |
data = [] |
1028 |
if top_level:
|
1029 |
data.append(("access mode", dev["mode"])) |
1030 |
if dev["logical_id"] is not None: |
1031 |
try:
|
1032 |
l_id = _FormatLogicalID(dev["dev_type"], dev["logical_id"], roman) |
1033 |
except ValueError: |
1034 |
l_id = [str(dev["logical_id"])] |
1035 |
if len(l_id) == 1: |
1036 |
data.append(("logical_id", l_id[0])) |
1037 |
else:
|
1038 |
data.extend(l_id) |
1039 |
elif dev["physical_id"] is not None: |
1040 |
data.append("physical_id:")
|
1041 |
data.append([dev["physical_id"]])
|
1042 |
|
1043 |
if dev["pstatus"]: |
1044 |
data.append(("on primary", helper(dev["dev_type"], dev["pstatus"]))) |
1045 |
|
1046 |
if dev["sstatus"]: |
1047 |
data.append(("on secondary", helper(dev["dev_type"], dev["sstatus"]))) |
1048 |
|
1049 |
if dev["children"]: |
1050 |
data.append("child devices:")
|
1051 |
for c_idx, child in enumerate(dev["children"]): |
1052 |
data.append(_FormatBlockDevInfo(c_idx, False, child, roman))
|
1053 |
d1.append(data) |
1054 |
return d1
|
1055 |
|
1056 |
|
1057 |
def _FormatList(buf, data, indent_level): |
1058 |
"""Formats a list of data at a given indent level.
|
1059 |
|
1060 |
If the element of the list is:
|
1061 |
- a string, it is simply formatted as is
|
1062 |
- a tuple, it will be split into key, value and the all the
|
1063 |
values in a list will be aligned all at the same start column
|
1064 |
- a list, will be recursively formatted
|
1065 |
|
1066 |
@type buf: StringIO
|
1067 |
@param buf: the buffer into which we write the output
|
1068 |
@param data: the list to format
|
1069 |
@type indent_level: int
|
1070 |
@param indent_level: the indent level to format at
|
1071 |
|
1072 |
"""
|
1073 |
max_tlen = max([len(elem[0]) for elem in data |
1074 |
if isinstance(elem, tuple)] or [0]) |
1075 |
for elem in data: |
1076 |
if isinstance(elem, basestring): |
1077 |
buf.write("%*s%s\n" % (2 * indent_level, "", elem)) |
1078 |
elif isinstance(elem, tuple): |
1079 |
key, value = elem |
1080 |
spacer = "%*s" % (max_tlen - len(key), "") |
1081 |
buf.write("%*s%s:%s %s\n" % (2 * indent_level, "", key, spacer, value)) |
1082 |
elif isinstance(elem, list): |
1083 |
_FormatList(buf, elem, indent_level + 1)
|
1084 |
|
1085 |
|
1086 |
def ShowInstanceConfig(opts, args): |
1087 |
"""Compute instance run-time status.
|
1088 |
|
1089 |
@param opts: the command line options selected by the user
|
1090 |
@type args: list
|
1091 |
@param args: either an empty list, and then we query all
|
1092 |
instances, or should contain a list of instance names
|
1093 |
@rtype: int
|
1094 |
@return: the desired exit code
|
1095 |
|
1096 |
"""
|
1097 |
if not args and not opts.show_all: |
1098 |
ToStderr("No instance selected."
|
1099 |
" Please pass in --all if you want to query all instances.\n"
|
1100 |
"Note that this can take a long time on a big cluster.")
|
1101 |
return 1 |
1102 |
elif args and opts.show_all: |
1103 |
ToStderr("Cannot use --all if you specify instance names.")
|
1104 |
return 1 |
1105 |
|
1106 |
retcode = 0
|
1107 |
op = opcodes.OpInstanceQueryData(instances=args, static=opts.static, |
1108 |
use_locking=not opts.static)
|
1109 |
result = SubmitOpCode(op, opts=opts) |
1110 |
if not result: |
1111 |
ToStdout("No instances.")
|
1112 |
return 1 |
1113 |
|
1114 |
buf = StringIO() |
1115 |
retcode = 0
|
1116 |
for instance_name in result: |
1117 |
instance = result[instance_name] |
1118 |
buf.write("Instance name: %s\n" % instance["name"]) |
1119 |
buf.write("UUID: %s\n" % instance["uuid"]) |
1120 |
buf.write("Serial number: %s\n" %
|
1121 |
compat.TryToRoman(instance["serial_no"],
|
1122 |
convert=opts.roman_integers)) |
1123 |
buf.write("Creation time: %s\n" % utils.FormatTime(instance["ctime"])) |
1124 |
buf.write("Modification time: %s\n" % utils.FormatTime(instance["mtime"])) |
1125 |
buf.write("State: configured to be %s" % instance["config_state"]) |
1126 |
if instance["run_state"]: |
1127 |
buf.write(", actual state is %s" % instance["run_state"]) |
1128 |
buf.write("\n")
|
1129 |
##buf.write("Considered for memory checks in cluster verify: %s\n" %
|
1130 |
## instance["auto_balance"])
|
1131 |
buf.write(" Nodes:\n")
|
1132 |
buf.write(" - primary: %s\n" % instance["pnode"]) |
1133 |
buf.write(" group: %s (UUID %s)\n" %
|
1134 |
(instance["pnode_group_name"], instance["pnode_group_uuid"])) |
1135 |
buf.write(" - secondaries: %s\n" %
|
1136 |
utils.CommaJoin("%s (group %s, group UUID %s)" %
|
1137 |
(name, group_name, group_uuid) |
1138 |
for (name, group_name, group_uuid) in |
1139 |
zip(instance["snodes"], |
1140 |
instance["snodes_group_names"],
|
1141 |
instance["snodes_group_uuids"])))
|
1142 |
buf.write(" Operating system: %s\n" % instance["os"]) |
1143 |
FormatParameterDict(buf, instance["os_instance"], instance["os_actual"], |
1144 |
level=2)
|
1145 |
if "network_port" in instance: |
1146 |
buf.write(" Allocated network port: %s\n" %
|
1147 |
compat.TryToRoman(instance["network_port"],
|
1148 |
convert=opts.roman_integers)) |
1149 |
buf.write(" Hypervisor: %s\n" % instance["hypervisor"]) |
1150 |
|
1151 |
# custom VNC console information
|
1152 |
vnc_bind_address = instance["hv_actual"].get(constants.HV_VNC_BIND_ADDRESS,
|
1153 |
None)
|
1154 |
if vnc_bind_address:
|
1155 |
port = instance["network_port"]
|
1156 |
display = int(port) - constants.VNC_BASE_PORT
|
1157 |
if display > 0 and vnc_bind_address == constants.IP4_ADDRESS_ANY: |
1158 |
vnc_console_port = "%s:%s (display %s)" % (instance["pnode"], |
1159 |
port, |
1160 |
display) |
1161 |
elif display > 0 and netutils.IP4Address.IsValid(vnc_bind_address): |
1162 |
vnc_console_port = ("%s:%s (node %s) (display %s)" %
|
1163 |
(vnc_bind_address, port, |
1164 |
instance["pnode"], display))
|
1165 |
else:
|
1166 |
# vnc bind address is a file
|
1167 |
vnc_console_port = "%s:%s" % (instance["pnode"], |
1168 |
vnc_bind_address) |
1169 |
buf.write(" - console connection: vnc to %s\n" % vnc_console_port)
|
1170 |
|
1171 |
FormatParameterDict(buf, instance["hv_instance"], instance["hv_actual"], |
1172 |
level=2)
|
1173 |
buf.write(" Hardware:\n")
|
1174 |
# deprecated "memory" value, kept for one version for compatibility
|
1175 |
# TODO(ganeti 2.7) remove.
|
1176 |
be_actual = copy.deepcopy(instance["be_actual"])
|
1177 |
be_actual["memory"] = be_actual[constants.BE_MAXMEM]
|
1178 |
FormatParameterDict(buf, instance["be_instance"], be_actual, level=2) |
1179 |
# TODO(ganeti 2.7) rework the NICs as well
|
1180 |
buf.write(" - NICs:\n")
|
1181 |
for idx, (ip, mac, mode, link, network) in enumerate(instance["nics"]): |
1182 |
buf.write(" - nic/%d: MAC: %s, IP: %s,"
|
1183 |
" mode: %s, link: %s, network: %s\n" %
|
1184 |
(idx, mac, ip, mode, link, network)) |
1185 |
buf.write(" Disk template: %s\n" % instance["disk_template"]) |
1186 |
buf.write(" Disks:\n")
|
1187 |
|
1188 |
for idx, device in enumerate(instance["disks"]): |
1189 |
_FormatList(buf, _FormatBlockDevInfo(idx, True, device,
|
1190 |
opts.roman_integers), 2)
|
1191 |
|
1192 |
ToStdout(buf.getvalue().rstrip("\n"))
|
1193 |
return retcode
|
1194 |
|
1195 |
|
1196 |
def _ConvertNicDiskModifications(mods): |
1197 |
"""Converts NIC/disk modifications from CLI to opcode.
|
1198 |
|
1199 |
When L{opcodes.OpInstanceSetParams} was changed to support adding/removing
|
1200 |
disks at arbitrary indices, its parameter format changed. This function
|
1201 |
converts legacy requests (e.g. "--net add" or "--disk add:size=4G") to the
|
1202 |
newer format and adds support for new-style requests (e.g. "--new 4:add").
|
1203 |
|
1204 |
@type mods: list of tuples
|
1205 |
@param mods: Modifications as given by command line parser
|
1206 |
@rtype: list of tuples
|
1207 |
@return: Modifications as understood by L{opcodes.OpInstanceSetParams}
|
1208 |
|
1209 |
"""
|
1210 |
result = [] |
1211 |
|
1212 |
for (idx, params) in mods: |
1213 |
if idx == constants.DDM_ADD:
|
1214 |
# Add item as last item (legacy interface)
|
1215 |
action = constants.DDM_ADD |
1216 |
idxno = -1
|
1217 |
elif idx == constants.DDM_REMOVE:
|
1218 |
# Remove last item (legacy interface)
|
1219 |
action = constants.DDM_REMOVE |
1220 |
idxno = -1
|
1221 |
else:
|
1222 |
# Modifications and adding/removing at arbitrary indices
|
1223 |
try:
|
1224 |
idxno = int(idx)
|
1225 |
except (TypeError, ValueError): |
1226 |
raise errors.OpPrereqError("Non-numeric index '%s'" % idx, |
1227 |
errors.ECODE_INVAL) |
1228 |
|
1229 |
add = params.pop(constants.DDM_ADD, _MISSING) |
1230 |
remove = params.pop(constants.DDM_REMOVE, _MISSING) |
1231 |
modify = params.pop(constants.DDM_MODIFY, _MISSING) |
1232 |
|
1233 |
if modify is _MISSING: |
1234 |
if not (add is _MISSING or remove is _MISSING): |
1235 |
raise errors.OpPrereqError("Cannot add and remove at the same time", |
1236 |
errors.ECODE_INVAL) |
1237 |
elif add is not _MISSING: |
1238 |
action = constants.DDM_ADD |
1239 |
elif remove is not _MISSING: |
1240 |
action = constants.DDM_REMOVE |
1241 |
else:
|
1242 |
action = constants.DDM_MODIFY |
1243 |
|
1244 |
elif add is _MISSING and remove is _MISSING: |
1245 |
action = constants.DDM_MODIFY |
1246 |
else:
|
1247 |
raise errors.OpPrereqError("Cannot modify and add/remove at the" |
1248 |
" same time", errors.ECODE_INVAL)
|
1249 |
|
1250 |
assert not (constants.DDMS_VALUES_WITH_MODIFY & set(params.keys())) |
1251 |
|
1252 |
if action == constants.DDM_REMOVE and params: |
1253 |
raise errors.OpPrereqError("Not accepting parameters on removal", |
1254 |
errors.ECODE_INVAL) |
1255 |
|
1256 |
result.append((action, idxno, params)) |
1257 |
|
1258 |
return result
|
1259 |
|
1260 |
|
1261 |
def _ParseDiskSizes(mods): |
1262 |
"""Parses disk sizes in parameters.
|
1263 |
|
1264 |
"""
|
1265 |
for (action, _, params) in mods: |
1266 |
if params and constants.IDISK_SIZE in params: |
1267 |
params[constants.IDISK_SIZE] = \ |
1268 |
utils.ParseUnit(params[constants.IDISK_SIZE]) |
1269 |
elif action == constants.DDM_ADD:
|
1270 |
raise errors.OpPrereqError("Missing required parameter 'size'", |
1271 |
errors.ECODE_INVAL) |
1272 |
|
1273 |
return mods
|
1274 |
|
1275 |
|
1276 |
def SetInstanceParams(opts, args): |
1277 |
"""Modifies an instance.
|
1278 |
|
1279 |
All parameters take effect only at the next restart of the instance.
|
1280 |
|
1281 |
@param opts: the command line options selected by the user
|
1282 |
@type args: list
|
1283 |
@param args: should contain only one element, the instance name
|
1284 |
@rtype: int
|
1285 |
@return: the desired exit code
|
1286 |
|
1287 |
"""
|
1288 |
if not (opts.nics or opts.disks or opts.disk_template or |
1289 |
opts.hvparams or opts.beparams or opts.os or opts.osparams or |
1290 |
opts.offline_inst or opts.online_inst or opts.runtime_mem): |
1291 |
ToStderr("Please give at least one of the parameters.")
|
1292 |
return 1 |
1293 |
|
1294 |
for param in opts.beparams: |
1295 |
if isinstance(opts.beparams[param], basestring): |
1296 |
if opts.beparams[param].lower() == "default": |
1297 |
opts.beparams[param] = constants.VALUE_DEFAULT |
1298 |
|
1299 |
utils.ForceDictType(opts.beparams, constants.BES_PARAMETER_COMPAT, |
1300 |
allowed_values=[constants.VALUE_DEFAULT]) |
1301 |
|
1302 |
for param in opts.hvparams: |
1303 |
if isinstance(opts.hvparams[param], basestring): |
1304 |
if opts.hvparams[param].lower() == "default": |
1305 |
opts.hvparams[param] = constants.VALUE_DEFAULT |
1306 |
|
1307 |
utils.ForceDictType(opts.hvparams, constants.HVS_PARAMETER_TYPES, |
1308 |
allowed_values=[constants.VALUE_DEFAULT]) |
1309 |
|
1310 |
nics = _ConvertNicDiskModifications(opts.nics) |
1311 |
disks = _ParseDiskSizes(_ConvertNicDiskModifications(opts.disks)) |
1312 |
|
1313 |
if (opts.disk_template and |
1314 |
opts.disk_template in constants.DTS_INT_MIRROR and |
1315 |
not opts.node):
|
1316 |
ToStderr("Changing the disk template to a mirrored one requires"
|
1317 |
" specifying a secondary node")
|
1318 |
return 1 |
1319 |
|
1320 |
if opts.offline_inst:
|
1321 |
offline = True
|
1322 |
elif opts.online_inst:
|
1323 |
offline = False
|
1324 |
else:
|
1325 |
offline = None
|
1326 |
|
1327 |
op = opcodes.OpInstanceSetParams(instance_name=args[0],
|
1328 |
nics=nics, |
1329 |
disks=disks, |
1330 |
disk_template=opts.disk_template, |
1331 |
remote_node=opts.node, |
1332 |
hvparams=opts.hvparams, |
1333 |
beparams=opts.beparams, |
1334 |
runtime_mem=opts.runtime_mem, |
1335 |
os_name=opts.os, |
1336 |
osparams=opts.osparams, |
1337 |
force_variant=opts.force_variant, |
1338 |
force=opts.force, |
1339 |
wait_for_sync=opts.wait_for_sync, |
1340 |
offline=offline, |
1341 |
ignore_ipolicy=opts.ignore_ipolicy) |
1342 |
|
1343 |
# even if here we process the result, we allow submit only
|
1344 |
result = SubmitOrSend(op, opts) |
1345 |
|
1346 |
if result:
|
1347 |
ToStdout("Modified instance %s", args[0]) |
1348 |
for param, data in result: |
1349 |
ToStdout(" - %-5s -> %s", param, data)
|
1350 |
ToStdout("Please don't forget that most parameters take effect"
|
1351 |
" only at the next (re)start of the instance initiated by"
|
1352 |
" ganeti; restarting from within the instance will"
|
1353 |
" not be enough.")
|
1354 |
return 0 |
1355 |
|
1356 |
|
1357 |
def ChangeGroup(opts, args): |
1358 |
"""Moves an instance to another group.
|
1359 |
|
1360 |
"""
|
1361 |
(instance_name, ) = args |
1362 |
|
1363 |
cl = GetClient() |
1364 |
|
1365 |
op = opcodes.OpInstanceChangeGroup(instance_name=instance_name, |
1366 |
iallocator=opts.iallocator, |
1367 |
target_groups=opts.to, |
1368 |
early_release=opts.early_release) |
1369 |
result = SubmitOrSend(op, opts, cl=cl) |
1370 |
|
1371 |
# Keep track of submitted jobs
|
1372 |
jex = JobExecutor(cl=cl, opts=opts) |
1373 |
|
1374 |
for (status, job_id) in result[constants.JOB_IDS_KEY]: |
1375 |
jex.AddJobId(None, status, job_id)
|
1376 |
|
1377 |
results = jex.GetResults() |
1378 |
bad_cnt = len([row for row in results if not row[0]]) |
1379 |
if bad_cnt == 0: |
1380 |
ToStdout("Instance '%s' changed group successfully.", instance_name)
|
1381 |
rcode = constants.EXIT_SUCCESS |
1382 |
else:
|
1383 |
ToStdout("There were %s errors while changing group of instance '%s'.",
|
1384 |
bad_cnt, instance_name) |
1385 |
rcode = constants.EXIT_FAILURE |
1386 |
|
1387 |
return rcode
|
1388 |
|
1389 |
|
1390 |
# multi-instance selection options
|
1391 |
m_force_multi = cli_option("--force-multiple", dest="force_multi", |
1392 |
help="Do not ask for confirmation when more than"
|
1393 |
" one instance is affected",
|
1394 |
action="store_true", default=False) |
1395 |
|
1396 |
m_pri_node_opt = cli_option("--primary", dest="multi_mode", |
1397 |
help="Filter by nodes (primary only)",
|
1398 |
const=_EXPAND_NODES_PRI, action="store_const")
|
1399 |
|
1400 |
m_sec_node_opt = cli_option("--secondary", dest="multi_mode", |
1401 |
help="Filter by nodes (secondary only)",
|
1402 |
const=_EXPAND_NODES_SEC, action="store_const")
|
1403 |
|
1404 |
m_node_opt = cli_option("--node", dest="multi_mode", |
1405 |
help="Filter by nodes (primary and secondary)",
|
1406 |
const=_EXPAND_NODES_BOTH, action="store_const")
|
1407 |
|
1408 |
m_clust_opt = cli_option("--all", dest="multi_mode", |
1409 |
help="Select all instances in the cluster",
|
1410 |
const=_EXPAND_CLUSTER, action="store_const")
|
1411 |
|
1412 |
m_inst_opt = cli_option("--instance", dest="multi_mode", |
1413 |
help="Filter by instance name [default]",
|
1414 |
const=_EXPAND_INSTANCES, action="store_const")
|
1415 |
|
1416 |
m_node_tags_opt = cli_option("--node-tags", dest="multi_mode", |
1417 |
help="Filter by node tag",
|
1418 |
const=_EXPAND_NODES_BOTH_BY_TAGS, |
1419 |
action="store_const")
|
1420 |
|
1421 |
m_pri_node_tags_opt = cli_option("--pri-node-tags", dest="multi_mode", |
1422 |
help="Filter by primary node tag",
|
1423 |
const=_EXPAND_NODES_PRI_BY_TAGS, |
1424 |
action="store_const")
|
1425 |
|
1426 |
m_sec_node_tags_opt = cli_option("--sec-node-tags", dest="multi_mode", |
1427 |
help="Filter by secondary node tag",
|
1428 |
const=_EXPAND_NODES_SEC_BY_TAGS, |
1429 |
action="store_const")
|
1430 |
|
1431 |
m_inst_tags_opt = cli_option("--tags", dest="multi_mode", |
1432 |
help="Filter by instance tag",
|
1433 |
const=_EXPAND_INSTANCES_BY_TAGS, |
1434 |
action="store_const")
|
1435 |
|
1436 |
# this is defined separately due to readability only
|
1437 |
add_opts = [ |
1438 |
NOSTART_OPT, |
1439 |
OS_OPT, |
1440 |
FORCE_VARIANT_OPT, |
1441 |
NO_INSTALL_OPT, |
1442 |
IGNORE_IPOLICY_OPT, |
1443 |
] |
1444 |
|
1445 |
commands = { |
1446 |
"add": (
|
1447 |
AddInstance, [ArgHost(min=1, max=1)], COMMON_CREATE_OPTS + add_opts, |
1448 |
"[...] -t disk-type -n node[:secondary-node] -o os-type <name>",
|
1449 |
"Creates and adds a new instance to the cluster"),
|
1450 |
"batch-create": (
|
1451 |
BatchCreate, [ArgFile(min=1, max=1)], |
1452 |
[DRY_RUN_OPT, PRIORITY_OPT, IALLOCATOR_OPT, SUBMIT_OPT], |
1453 |
"<instances.json>",
|
1454 |
"Create a bunch of instances based on specs in the file."),
|
1455 |
"console": (
|
1456 |
ConnectToInstanceConsole, ARGS_ONE_INSTANCE, |
1457 |
[SHOWCMD_OPT, PRIORITY_OPT], |
1458 |
"[--show-cmd] <instance>", "Opens a console on the specified instance"), |
1459 |
"failover": (
|
1460 |
FailoverInstance, ARGS_ONE_INSTANCE, |
1461 |
[FORCE_OPT, IGNORE_CONSIST_OPT, SUBMIT_OPT, SHUTDOWN_TIMEOUT_OPT, |
1462 |
DRY_RUN_OPT, PRIORITY_OPT, DST_NODE_OPT, IALLOCATOR_OPT, |
1463 |
IGNORE_IPOLICY_OPT], |
1464 |
"[-f] <instance>", "Stops the instance, changes its primary node and" |
1465 |
" (if it was originally running) starts it on the new node"
|
1466 |
" (the secondary for mirrored instances or any node"
|
1467 |
" for shared storage)."),
|
1468 |
"migrate": (
|
1469 |
MigrateInstance, ARGS_ONE_INSTANCE, |
1470 |
[FORCE_OPT, NONLIVE_OPT, MIGRATION_MODE_OPT, CLEANUP_OPT, DRY_RUN_OPT, |
1471 |
PRIORITY_OPT, DST_NODE_OPT, IALLOCATOR_OPT, ALLOW_FAILOVER_OPT, |
1472 |
IGNORE_IPOLICY_OPT, NORUNTIME_CHGS_OPT, SUBMIT_OPT], |
1473 |
"[-f] <instance>", "Migrate instance to its secondary node" |
1474 |
" (only for mirrored instances)"),
|
1475 |
"move": (
|
1476 |
MoveInstance, ARGS_ONE_INSTANCE, |
1477 |
[FORCE_OPT, SUBMIT_OPT, SINGLE_NODE_OPT, SHUTDOWN_TIMEOUT_OPT, |
1478 |
DRY_RUN_OPT, PRIORITY_OPT, IGNORE_CONSIST_OPT, IGNORE_IPOLICY_OPT], |
1479 |
"[-f] <instance>", "Move instance to an arbitrary node" |
1480 |
" (only for instances of type file and lv)"),
|
1481 |
"info": (
|
1482 |
ShowInstanceConfig, ARGS_MANY_INSTANCES, |
1483 |
[STATIC_OPT, ALL_OPT, ROMAN_OPT, PRIORITY_OPT], |
1484 |
"[-s] {--all | <instance>...}",
|
1485 |
"Show information on the specified instance(s)"),
|
1486 |
"list": (
|
1487 |
ListInstances, ARGS_MANY_INSTANCES, |
1488 |
[NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, VERBOSE_OPT, |
1489 |
FORCE_FILTER_OPT], |
1490 |
"[<instance>...]",
|
1491 |
"Lists the instances and their status. The available fields can be shown"
|
1492 |
" using the \"list-fields\" command (see the man page for details)."
|
1493 |
" The default field list is (in order): %s." %
|
1494 |
utils.CommaJoin(_LIST_DEF_FIELDS), |
1495 |
), |
1496 |
"list-fields": (
|
1497 |
ListInstanceFields, [ArgUnknown()], |
1498 |
[NOHDR_OPT, SEP_OPT], |
1499 |
"[fields...]",
|
1500 |
"Lists all available fields for instances"),
|
1501 |
"reinstall": (
|
1502 |
ReinstallInstance, [ArgInstance()], |
1503 |
[FORCE_OPT, OS_OPT, FORCE_VARIANT_OPT, m_force_multi, m_node_opt, |
1504 |
m_pri_node_opt, m_sec_node_opt, m_clust_opt, m_inst_opt, m_node_tags_opt, |
1505 |
m_pri_node_tags_opt, m_sec_node_tags_opt, m_inst_tags_opt, SELECT_OS_OPT, |
1506 |
SUBMIT_OPT, DRY_RUN_OPT, PRIORITY_OPT, OSPARAMS_OPT], |
1507 |
"[-f] <instance>", "Reinstall a stopped instance"), |
1508 |
"remove": (
|
1509 |
RemoveInstance, ARGS_ONE_INSTANCE, |
1510 |
[FORCE_OPT, SHUTDOWN_TIMEOUT_OPT, IGNORE_FAILURES_OPT, SUBMIT_OPT, |
1511 |
DRY_RUN_OPT, PRIORITY_OPT], |
1512 |
"[-f] <instance>", "Shuts down the instance and removes it"), |
1513 |
"rename": (
|
1514 |
RenameInstance, |
1515 |
[ArgInstance(min=1, max=1), ArgHost(min=1, max=1)], |
1516 |
[NOIPCHECK_OPT, NONAMECHECK_OPT, SUBMIT_OPT, DRY_RUN_OPT, PRIORITY_OPT], |
1517 |
"<instance> <new_name>", "Rename the instance"), |
1518 |
"replace-disks": (
|
1519 |
ReplaceDisks, ARGS_ONE_INSTANCE, |
1520 |
[AUTO_REPLACE_OPT, DISKIDX_OPT, IALLOCATOR_OPT, EARLY_RELEASE_OPT, |
1521 |
NEW_SECONDARY_OPT, ON_PRIMARY_OPT, ON_SECONDARY_OPT, SUBMIT_OPT, |
1522 |
DRY_RUN_OPT, PRIORITY_OPT, IGNORE_IPOLICY_OPT], |
1523 |
"[-s|-p|-a|-n NODE|-I NAME] <instance>",
|
1524 |
"Replaces disks for the instance"),
|
1525 |
"modify": (
|
1526 |
SetInstanceParams, ARGS_ONE_INSTANCE, |
1527 |
[BACKEND_OPT, DISK_OPT, FORCE_OPT, HVOPTS_OPT, NET_OPT, SUBMIT_OPT, |
1528 |
DISK_TEMPLATE_OPT, SINGLE_NODE_OPT, OS_OPT, FORCE_VARIANT_OPT, |
1529 |
OSPARAMS_OPT, DRY_RUN_OPT, PRIORITY_OPT, NWSYNC_OPT, OFFLINE_INST_OPT, |
1530 |
ONLINE_INST_OPT, IGNORE_IPOLICY_OPT, RUNTIME_MEM_OPT], |
1531 |
"<instance>", "Alters the parameters of an instance"), |
1532 |
"shutdown": (
|
1533 |
GenericManyOps("shutdown", _ShutdownInstance), [ArgInstance()],
|
1534 |
[m_node_opt, m_pri_node_opt, m_sec_node_opt, m_clust_opt, |
1535 |
m_node_tags_opt, m_pri_node_tags_opt, m_sec_node_tags_opt, |
1536 |
m_inst_tags_opt, m_inst_opt, m_force_multi, TIMEOUT_OPT, SUBMIT_OPT, |
1537 |
DRY_RUN_OPT, PRIORITY_OPT, IGNORE_OFFLINE_OPT, NO_REMEMBER_OPT], |
1538 |
"<instance>", "Stops an instance"), |
1539 |
"startup": (
|
1540 |
GenericManyOps("startup", _StartupInstance), [ArgInstance()],
|
1541 |
[FORCE_OPT, m_force_multi, m_node_opt, m_pri_node_opt, m_sec_node_opt, |
1542 |
m_node_tags_opt, m_pri_node_tags_opt, m_sec_node_tags_opt, |
1543 |
m_inst_tags_opt, m_clust_opt, m_inst_opt, SUBMIT_OPT, HVOPTS_OPT, |
1544 |
BACKEND_OPT, DRY_RUN_OPT, PRIORITY_OPT, IGNORE_OFFLINE_OPT, |
1545 |
NO_REMEMBER_OPT, STARTUP_PAUSED_OPT], |
1546 |
"<instance>", "Starts an instance"), |
1547 |
"reboot": (
|
1548 |
GenericManyOps("reboot", _RebootInstance), [ArgInstance()],
|
1549 |
[m_force_multi, REBOOT_TYPE_OPT, IGNORE_SECONDARIES_OPT, m_node_opt, |
1550 |
m_pri_node_opt, m_sec_node_opt, m_clust_opt, m_inst_opt, SUBMIT_OPT, |
1551 |
m_node_tags_opt, m_pri_node_tags_opt, m_sec_node_tags_opt, |
1552 |
m_inst_tags_opt, SHUTDOWN_TIMEOUT_OPT, DRY_RUN_OPT, PRIORITY_OPT], |
1553 |
"<instance>", "Reboots an instance"), |
1554 |
"activate-disks": (
|
1555 |
ActivateDisks, ARGS_ONE_INSTANCE, |
1556 |
[SUBMIT_OPT, IGNORE_SIZE_OPT, PRIORITY_OPT, WFSYNC_OPT], |
1557 |
"<instance>", "Activate an instance's disks"), |
1558 |
"deactivate-disks": (
|
1559 |
DeactivateDisks, ARGS_ONE_INSTANCE, |
1560 |
[FORCE_OPT, SUBMIT_OPT, DRY_RUN_OPT, PRIORITY_OPT], |
1561 |
"[-f] <instance>", "Deactivate an instance's disks"), |
1562 |
"recreate-disks": (
|
1563 |
RecreateDisks, ARGS_ONE_INSTANCE, |
1564 |
[SUBMIT_OPT, DISK_OPT, NODE_PLACEMENT_OPT, DRY_RUN_OPT, PRIORITY_OPT, |
1565 |
IALLOCATOR_OPT], |
1566 |
"<instance>", "Recreate an instance's disks"), |
1567 |
"grow-disk": (
|
1568 |
GrowDisk, |
1569 |
[ArgInstance(min=1, max=1), ArgUnknown(min=1, max=1), |
1570 |
ArgUnknown(min=1, max=1)], |
1571 |
[SUBMIT_OPT, NWSYNC_OPT, DRY_RUN_OPT, PRIORITY_OPT, ABSOLUTE_OPT], |
1572 |
"<instance> <disk> <size>", "Grow an instance's disk"), |
1573 |
"change-group": (
|
1574 |
ChangeGroup, ARGS_ONE_INSTANCE, |
1575 |
[TO_GROUP_OPT, IALLOCATOR_OPT, EARLY_RELEASE_OPT, PRIORITY_OPT, SUBMIT_OPT], |
1576 |
"[-I <iallocator>] [--to <group>]", "Change group of instance"), |
1577 |
"list-tags": (
|
1578 |
ListTags, ARGS_ONE_INSTANCE, [], |
1579 |
"<instance_name>", "List the tags of the given instance"), |
1580 |
"add-tags": (
|
1581 |
AddTags, [ArgInstance(min=1, max=1), ArgUnknown()], |
1582 |
[TAG_SRC_OPT, PRIORITY_OPT, SUBMIT_OPT], |
1583 |
"<instance_name> tag...", "Add tags to the given instance"), |
1584 |
"remove-tags": (
|
1585 |
RemoveTags, [ArgInstance(min=1, max=1), ArgUnknown()], |
1586 |
[TAG_SRC_OPT, PRIORITY_OPT, SUBMIT_OPT], |
1587 |
"<instance_name> tag...", "Remove tags from given instance"), |
1588 |
} |
1589 |
|
1590 |
#: dictionary with aliases for commands
|
1591 |
aliases = { |
1592 |
"start": "startup", |
1593 |
"stop": "shutdown", |
1594 |
"show": "info", |
1595 |
} |
1596 |
|
1597 |
|
1598 |
def Main(): |
1599 |
return GenericMain(commands, aliases=aliases,
|
1600 |
override={"tag_type": constants.TAG_INSTANCE},
|
1601 |
env_override=_ENV_OVERRIDE) |