4 # Copyright (C) 2006, 2007, 2008, 2009, 2010 Google Inc.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful, but
12 # WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 # General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 """Instance related commands"""
23 # pylint: disable-msg=W0401,W0614,C0103
24 # W0401: Wildcard import ganeti.cli
25 # W0614: Unused import %s from wildcard import (since we need cli)
26 # C0103: Invalid name gnt-instance
30 from cStringIO import StringIO
32 from ganeti.cli import *
33 from ganeti import opcodes
34 from ganeti import constants
35 from ganeti import compat
36 from ganeti import utils
37 from ganeti import errors
38 from ganeti import netutils
41 _SHUTDOWN_CLUSTER = "cluster"
42 _SHUTDOWN_NODES_BOTH = "nodes"
43 _SHUTDOWN_NODES_PRI = "nodes-pri"
44 _SHUTDOWN_NODES_SEC = "nodes-sec"
45 _SHUTDOWN_NODES_BOTH_BY_TAGS = "nodes-by-tags"
46 _SHUTDOWN_NODES_PRI_BY_TAGS = "nodes-pri-by-tags"
47 _SHUTDOWN_NODES_SEC_BY_TAGS = "nodes-sec-by-tags"
48 _SHUTDOWN_INSTANCES = "instances"
49 _SHUTDOWN_INSTANCES_BY_TAGS = "instances-by-tags"
51 _SHUTDOWN_NODES_TAGS_MODES = (
52 _SHUTDOWN_NODES_BOTH_BY_TAGS,
53 _SHUTDOWN_NODES_PRI_BY_TAGS,
54 _SHUTDOWN_NODES_SEC_BY_TAGS)
57 #: default list of options for L{ListInstances}
59 "name", "hypervisor", "os", "pnode", "status", "oper_ram",
63 def _ExpandMultiNames(mode, names, client=None):
64 """Expand the given names using the passed mode.
66 For _SHUTDOWN_CLUSTER, all instances will be returned. For
67 _SHUTDOWN_NODES_PRI/SEC, all instances having those nodes as
68 primary/secondary will be returned. For _SHUTDOWN_NODES_BOTH, all
69 instances having those nodes as either primary or secondary will be
70 returned. For _SHUTDOWN_INSTANCES, the given instances will be
73 @param mode: one of L{_SHUTDOWN_CLUSTER}, L{_SHUTDOWN_NODES_BOTH},
74 L{_SHUTDOWN_NODES_PRI}, L{_SHUTDOWN_NODES_SEC} or
75 L{_SHUTDOWN_INSTANCES}
76 @param names: a list of names; for cluster, it must be empty,
77 and for node and instance it must be a list of valid item
78 names (short names are valid as usual, e.g. node1 instead of
81 @return: the list of names after the expansion
82 @raise errors.ProgrammerError: for unknown selection type
83 @raise errors.OpPrereqError: for invalid input parameters
86 # pylint: disable-msg=W0142
90 if mode == _SHUTDOWN_CLUSTER:
92 raise errors.OpPrereqError("Cluster filter mode takes no arguments",
94 idata = client.QueryInstances([], ["name"], False)
95 inames = [row[0] for row in idata]
97 elif mode in (_SHUTDOWN_NODES_BOTH,
99 _SHUTDOWN_NODES_SEC) + _SHUTDOWN_NODES_TAGS_MODES:
100 if mode in _SHUTDOWN_NODES_TAGS_MODES:
102 raise errors.OpPrereqError("No node tags passed", errors.ECODE_INVAL)
103 ndata = client.QueryNodes([], ["name", "pinst_list",
104 "sinst_list", "tags"], False)
105 ndata = [row for row in ndata if set(row[3]).intersection(names)]
108 raise errors.OpPrereqError("No node names passed", errors.ECODE_INVAL)
109 ndata = client.QueryNodes(names, ["name", "pinst_list", "sinst_list"],
112 ipri = [row[1] for row in ndata]
113 pri_names = list(itertools.chain(*ipri))
114 isec = [row[2] for row in ndata]
115 sec_names = list(itertools.chain(*isec))
116 if mode in (_SHUTDOWN_NODES_BOTH, _SHUTDOWN_NODES_BOTH_BY_TAGS):
117 inames = pri_names + sec_names
118 elif mode in (_SHUTDOWN_NODES_PRI, _SHUTDOWN_NODES_PRI_BY_TAGS):
120 elif mode in (_SHUTDOWN_NODES_SEC, _SHUTDOWN_NODES_SEC_BY_TAGS):
123 raise errors.ProgrammerError("Unhandled shutdown type")
124 elif mode == _SHUTDOWN_INSTANCES:
126 raise errors.OpPrereqError("No instance names passed",
128 idata = client.QueryInstances(names, ["name"], False)
129 inames = [row[0] for row in idata]
130 elif mode == _SHUTDOWN_INSTANCES_BY_TAGS:
132 raise errors.OpPrereqError("No instance tags passed",
134 idata = client.QueryInstances([], ["name", "tags"], False)
135 inames = [row[0] for row in idata if set(row[1]).intersection(names)]
137 raise errors.OpPrereqError("Unknown mode '%s'" % mode, errors.ECODE_INVAL)
142 def _ConfirmOperation(inames, text, extra=""):
143 """Ask the user to confirm an operation on a list of instances.
145 This function is used to request confirmation for doing an operation
146 on a given list of instances.
149 @param inames: the list of names that we display when
150 we ask for confirmation
152 @param text: the operation that the user should confirm
153 (e.g. I{shutdown} or I{startup})
155 @return: True or False depending on user's confirmation.
159 msg = ("The %s will operate on %d instances.\n%s"
160 "Do you want to continue?" % (text, count, extra))
161 affected = ("\nAffected instances:\n" +
162 "\n".join([" %s" % name for name in inames]))
164 choices = [('y', True, 'Yes, execute the %s' % text),
165 ('n', False, 'No, abort the %s' % text)]
168 choices.insert(1, ('v', 'v', 'View the list of affected instances'))
173 choice = AskUser(ask, choices)
176 choice = AskUser(msg + affected, choices)
180 def _EnsureInstancesExist(client, names):
181 """Check for and ensure the given instance names exist.
183 This function will raise an OpPrereqError in case they don't
184 exist. Otherwise it will exit cleanly.
186 @type client: L{ganeti.luxi.Client}
187 @param client: the client to use for the query
189 @param names: the list of instance names to query
190 @raise errors.OpPrereqError: in case any instance is missing
193 # TODO: change LUQueryInstances to that it actually returns None
194 # instead of raising an exception, or devise a better mechanism
195 result = client.QueryInstances(names, ["name"], False)
196 for orig_name, row in zip(names, result):
198 raise errors.OpPrereqError("Instance '%s' does not exist" % orig_name,
202 def GenericManyOps(operation, fn):
203 """Generic multi-instance operations.
205 The will return a wrapper that processes the options and arguments
206 given, and uses the passed function to build the opcode needed for
207 the specific operation. Thus all the generic loop/confirmation code
208 is abstracted into this function.
211 def realfn(opts, args):
212 if opts.multi_mode is None:
213 opts.multi_mode = _SHUTDOWN_INSTANCES
215 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
217 raise errors.OpPrereqError("Selection filter does not match"
218 " any instances", errors.ECODE_INVAL)
219 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
220 if not (opts.force_multi or not multi_on
221 or _ConfirmOperation(inames, operation)):
223 jex = JobExecutor(verbose=multi_on, cl=cl, opts=opts)
226 jex.QueueJob(name, op)
227 results = jex.WaitOrShow(not opts.submit_only)
228 rcode = compat.all(row[0] for row in results)
229 return int(not rcode)
233 def ListInstances(opts, args):
234 """List instances and their properties.
236 @param opts: the command line options selected by the user
238 @param args: should be an empty list
240 @return: the desired exit code
243 selected_fields = ParseFields(opts.output, _LIST_DEF_FIELDS)
245 output = GetClient().QueryInstances(args, selected_fields, opts.do_locking)
247 if not opts.no_headers:
249 "name": "Instance", "os": "OS", "pnode": "Primary_node",
250 "snodes": "Secondary_Nodes", "admin_state": "Autostart",
251 "oper_state": "Running",
252 "oper_ram": "Memory", "disk_template": "Disk_template",
253 "oper_vcpus": "VCPUs",
254 "ip": "IP_address", "mac": "MAC_address",
255 "nic_mode": "NIC_Mode", "nic_link": "NIC_Link",
257 "sda_size": "Disk/0", "sdb_size": "Disk/1",
258 "disk_usage": "DiskUsage",
259 "status": "Status", "tags": "Tags",
260 "network_port": "Network_port",
261 "hv/kernel_path": "Kernel_path",
262 "hv/initrd_path": "Initrd_path",
263 "hv/boot_order": "Boot_order",
266 "hv/cdrom_image_path": "CDROM_image_path",
267 "hv/nic_type": "NIC_type",
268 "hv/disk_type": "Disk_type",
269 "hv/vnc_bind_address": "VNC_bind_address",
270 "serial_no": "SerialNo", "hypervisor": "Hypervisor",
271 "hvparams": "Hypervisor_parameters",
272 "be/memory": "Configured_memory",
275 "be/auto_balance": "Auto_balance",
276 "disk.count": "Disks", "disk.sizes": "Disk_sizes",
277 "nic.count": "NICs", "nic.ips": "NIC_IPs",
278 "nic.modes": "NIC_modes", "nic.links": "NIC_links",
279 "nic.bridges": "NIC_bridges", "nic.macs": "NIC_MACs",
280 "ctime": "CTime", "mtime": "MTime", "uuid": "UUID",
285 unitfields = ["be/memory", "oper_ram", "sd(a|b)_size", "disk\.size/.*"]
286 numfields = ["be/memory", "oper_ram", "sd(a|b)_size", "be/vcpus",
287 "serial_no", "(disk|nic)\.count", "disk\.size/.*"]
289 list_type_fields = ("tags", "disk.sizes", "nic.macs", "nic.ips",
290 "nic.modes", "nic.links", "nic.bridges")
291 # change raw values to nicer strings
293 for idx, field in enumerate(selected_fields):
295 if field == "snodes":
296 val = ",".join(val) or "-"
297 elif field == "admin_state":
302 elif field == "oper_state":
309 elif field == "oper_ram":
312 elif field == "oper_vcpus":
315 elif field == "sda_size" or field == "sdb_size":
318 elif field == "ctime" or field == "mtime":
319 val = utils.FormatTime(val)
320 elif field in list_type_fields:
321 val = ",".join(str(item) for item in val)
324 if opts.roman_integers and isinstance(val, int):
325 val = compat.TryToRoman(val)
328 data = GenerateTable(separator=opts.separator, headers=headers,
329 fields=selected_fields, unitfields=unitfields,
330 numfields=numfields, data=output, units=opts.units)
338 def AddInstance(opts, args):
339 """Add an instance to the cluster.
341 This is just a wrapper over GenericInstanceCreate.
344 return GenericInstanceCreate(constants.INSTANCE_CREATE, opts, args)
347 def BatchCreate(opts, args):
348 """Create instances using a definition file.
350 This function reads a json file with instances defined
354 "disk_size": [20480],
360 "primary_node": "firstnode",
361 "secondary_node": "secondnode",
362 "iallocator": "dumb"}
365 Note that I{primary_node} and I{secondary_node} have precedence over
368 @param opts: the command line options selected by the user
370 @param args: should contain one element, the json filename
372 @return: the desired exit code
375 _DEFAULT_SPECS = {"disk_size": [20 * 1024],
378 "primary_node": None,
379 "secondary_node": None,
386 "file_storage_dir": None,
387 "force_variant": False,
388 "file_driver": 'loop'}
390 def _PopulateWithDefaults(spec):
391 """Returns a new hash combined with default values."""
392 mydict = _DEFAULT_SPECS.copy()
397 """Validate the instance specs."""
398 # Validate fields required under any circumstances
399 for required_field in ('os', 'template'):
400 if required_field not in spec:
401 raise errors.OpPrereqError('Required field "%s" is missing.' %
402 required_field, errors.ECODE_INVAL)
403 # Validate special fields
404 if spec['primary_node'] is not None:
405 if (spec['template'] in constants.DTS_NET_MIRROR and
406 spec['secondary_node'] is None):
407 raise errors.OpPrereqError('Template requires secondary node, but'
408 ' there was no secondary provided.',
410 elif spec['iallocator'] is None:
411 raise errors.OpPrereqError('You have to provide at least a primary_node'
412 ' or an iallocator.',
415 if (spec['hvparams'] and
416 not isinstance(spec['hvparams'], dict)):
417 raise errors.OpPrereqError('Hypervisor parameters must be a dict.',
420 json_filename = args[0]
422 instance_data = simplejson.loads(utils.ReadFile(json_filename))
423 except Exception, err: # pylint: disable-msg=W0703
424 ToStderr("Can't parse the instance definition file: %s" % str(err))
427 if not isinstance(instance_data, dict):
428 ToStderr("The instance definition file is not in dict format.")
431 jex = JobExecutor(opts=opts)
433 # Iterate over the instances and do:
434 # * Populate the specs with default value
435 # * Validate the instance specs
436 i_names = utils.NiceSort(instance_data.keys()) # pylint: disable-msg=E1103
438 specs = instance_data[name]
439 specs = _PopulateWithDefaults(specs)
442 hypervisor = specs['hypervisor']
443 hvparams = specs['hvparams']
446 for elem in specs['disk_size']:
448 size = utils.ParseUnit(elem)
449 except (TypeError, ValueError), err:
450 raise errors.OpPrereqError("Invalid disk size '%s' for"
452 (elem, name, err), errors.ECODE_INVAL)
453 disks.append({"size": size})
455 utils.ForceDictType(specs['backend'], constants.BES_PARAMETER_TYPES)
456 utils.ForceDictType(hvparams, constants.HVS_PARAMETER_TYPES)
459 for field in ('ip', 'mac', 'mode', 'link', 'bridge'):
463 tmp_nics[0][field] = specs[field]
465 if specs['nics'] is not None and tmp_nics:
466 raise errors.OpPrereqError("'nics' list incompatible with using"
467 " individual nic fields as well",
469 elif specs['nics'] is not None:
470 tmp_nics = specs['nics']
474 op = opcodes.OpCreateInstance(instance_name=name,
476 disk_template=specs['template'],
477 mode=constants.INSTANCE_CREATE,
479 force_variant=specs["force_variant"],
480 pnode=specs['primary_node'],
481 snode=specs['secondary_node'],
483 start=specs['start'],
484 ip_check=specs['ip_check'],
485 name_check=specs['name_check'],
487 iallocator=specs['iallocator'],
488 hypervisor=hypervisor,
490 beparams=specs['backend'],
491 file_storage_dir=specs['file_storage_dir'],
492 file_driver=specs['file_driver'])
494 jex.QueueJob(name, op)
495 # we never want to wait, just show the submitted job IDs
496 jex.WaitOrShow(False)
501 def ReinstallInstance(opts, args):
502 """Reinstall an instance.
504 @param opts: the command line options selected by the user
506 @param args: should contain only one element, the name of the
507 instance to be reinstalled
509 @return: the desired exit code
512 # first, compute the desired name list
513 if opts.multi_mode is None:
514 opts.multi_mode = _SHUTDOWN_INSTANCES
516 inames = _ExpandMultiNames(opts.multi_mode, args)
518 raise errors.OpPrereqError("Selection filter does not match any instances",
521 # second, if requested, ask for an OS
522 if opts.select_os is True:
523 op = opcodes.OpDiagnoseOS(output_fields=["name", "variants"], names=[])
524 result = SubmitOpCode(op, opts=opts)
527 ToStdout("Can't get the OS list")
530 ToStdout("Available OS templates:")
533 for (name, variants) in result:
534 for entry in CalculateOSNames(name, variants):
535 ToStdout("%3s: %s", number, entry)
536 choices.append(("%s" % number, entry, entry))
539 choices.append(('x', 'exit', 'Exit gnt-instance reinstall'))
540 selected = AskUser("Enter OS template number (or x to abort):",
543 if selected == 'exit':
544 ToStderr("User aborted reinstall, exiting")
551 # third, get confirmation: multi-reinstall requires --force-multi,
552 # single-reinstall either --force or --force-multi (--force-multi is
553 # a stronger --force)
554 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
556 warn_msg = "Note: this will remove *all* data for the below instances!\n"
557 if not (opts.force_multi or
558 _ConfirmOperation(inames, "reinstall", extra=warn_msg)):
561 if not (opts.force or opts.force_multi):
562 usertext = ("This will reinstall the instance %s and remove"
563 " all data. Continue?") % inames[0]
564 if not AskUser(usertext):
567 jex = JobExecutor(verbose=multi_on, opts=opts)
568 for instance_name in inames:
569 op = opcodes.OpReinstallInstance(instance_name=instance_name,
571 force_variant=opts.force_variant,
572 osparams=opts.osparams)
573 jex.QueueJob(instance_name, op)
575 jex.WaitOrShow(not opts.submit_only)
579 def RemoveInstance(opts, args):
580 """Remove an instance.
582 @param opts: the command line options selected by the user
584 @param args: should contain only one element, the name of
585 the instance to be removed
587 @return: the desired exit code
590 instance_name = args[0]
595 _EnsureInstancesExist(cl, [instance_name])
597 usertext = ("This will remove the volumes of the instance %s"
598 " (including mirrors), thus removing all the data"
599 " of the instance. Continue?") % instance_name
600 if not AskUser(usertext):
603 op = opcodes.OpRemoveInstance(instance_name=instance_name,
604 ignore_failures=opts.ignore_failures,
605 shutdown_timeout=opts.shutdown_timeout)
606 SubmitOrSend(op, opts, cl=cl)
610 def RenameInstance(opts, args):
611 """Rename an instance.
613 @param opts: the command line options selected by the user
615 @param args: should contain two elements, the old and the
618 @return: the desired exit code
621 if not opts.name_check:
622 if not AskUser("As you disabled the check of the DNS entry, please verify"
623 " that '%s' is a FQDN. Continue?" % args[1]):
626 op = opcodes.OpRenameInstance(instance_name=args[0],
628 ip_check=opts.ip_check,
629 name_check=opts.name_check)
630 result = SubmitOrSend(op, opts)
633 ToStdout("Instance '%s' renamed to '%s'", args[0], result)
638 def ActivateDisks(opts, args):
639 """Activate an instance's disks.
641 This serves two purposes:
642 - it allows (as long as the instance is not running)
643 mounting the disks and modifying them from the node
644 - it repairs inactive secondary drbds
646 @param opts: the command line options selected by the user
648 @param args: should contain only one element, the instance name
650 @return: the desired exit code
653 instance_name = args[0]
654 op = opcodes.OpActivateInstanceDisks(instance_name=instance_name,
655 ignore_size=opts.ignore_size)
656 disks_info = SubmitOrSend(op, opts)
657 for host, iname, nname in disks_info:
658 ToStdout("%s:%s:%s", host, iname, nname)
662 def DeactivateDisks(opts, args):
663 """Deactivate an instance's disks.
665 This function takes the instance name, looks for its primary node
666 and the tries to shutdown its block devices on that node.
668 @param opts: the command line options selected by the user
670 @param args: should contain only one element, the instance name
672 @return: the desired exit code
675 instance_name = args[0]
676 op = opcodes.OpDeactivateInstanceDisks(instance_name=instance_name)
677 SubmitOrSend(op, opts)
681 def RecreateDisks(opts, args):
682 """Recreate an instance's disks.
684 @param opts: the command line options selected by the user
686 @param args: should contain only one element, the instance name
688 @return: the desired exit code
691 instance_name = args[0]
694 opts.disks = [int(v) for v in opts.disks.split(",")]
695 except (ValueError, TypeError), err:
696 ToStderr("Invalid disks value: %s" % str(err))
701 op = opcodes.OpRecreateInstanceDisks(instance_name=instance_name,
703 SubmitOrSend(op, opts)
707 def GrowDisk(opts, args):
708 """Grow an instance's disks.
710 @param opts: the command line options selected by the user
712 @param args: should contain two elements, the instance name
713 whose disks we grow and the disk name, e.g. I{sda}
715 @return: the desired exit code
722 except (TypeError, ValueError), err:
723 raise errors.OpPrereqError("Invalid disk index: %s" % str(err),
725 amount = utils.ParseUnit(args[2])
726 op = opcodes.OpGrowDisk(instance_name=instance, disk=disk, amount=amount,
727 wait_for_sync=opts.wait_for_sync)
728 SubmitOrSend(op, opts)
732 def _StartupInstance(name, opts):
733 """Startup instances.
735 This returns the opcode to start an instance, and its decorator will
736 wrap this into a loop starting all desired instances.
738 @param name: the name of the instance to act on
739 @param opts: the command line options selected by the user
740 @return: the opcode needed for the operation
743 op = opcodes.OpStartupInstance(instance_name=name,
745 ignore_offline_nodes=opts.ignore_offline)
746 # do not add these parameters to the opcode unless they're defined
748 op.hvparams = opts.hvparams
750 op.beparams = opts.beparams
754 def _RebootInstance(name, opts):
755 """Reboot instance(s).
757 This returns the opcode to reboot an instance, and its decorator
758 will wrap this into a loop rebooting all desired instances.
760 @param name: the name of the instance to act on
761 @param opts: the command line options selected by the user
762 @return: the opcode needed for the operation
765 return opcodes.OpRebootInstance(instance_name=name,
766 reboot_type=opts.reboot_type,
767 ignore_secondaries=opts.ignore_secondaries,
768 shutdown_timeout=opts.shutdown_timeout)
771 def _ShutdownInstance(name, opts):
772 """Shutdown an instance.
774 This returns the opcode to shutdown an instance, and its decorator
775 will wrap this into a loop shutting down all desired instances.
777 @param name: the name of the instance to act on
778 @param opts: the command line options selected by the user
779 @return: the opcode needed for the operation
782 return opcodes.OpShutdownInstance(instance_name=name,
783 timeout=opts.timeout,
784 ignore_offline_nodes=opts.ignore_offline)
787 def ReplaceDisks(opts, args):
788 """Replace the disks of an instance
790 @param opts: the command line options selected by the user
792 @param args: should contain only one element, the instance name
794 @return: the desired exit code
797 new_2ndary = opts.dst_node
798 iallocator = opts.iallocator
799 if opts.disks is None:
803 disks = [int(i) for i in opts.disks.split(",")]
804 except (TypeError, ValueError), err:
805 raise errors.OpPrereqError("Invalid disk index passed: %s" % str(err),
807 cnt = [opts.on_primary, opts.on_secondary, opts.auto,
808 new_2ndary is not None, iallocator is not None].count(True)
810 raise errors.OpPrereqError("One and only one of the -p, -s, -a, -n and -i"
811 " options must be passed", errors.ECODE_INVAL)
812 elif opts.on_primary:
813 mode = constants.REPLACE_DISK_PRI
814 elif opts.on_secondary:
815 mode = constants.REPLACE_DISK_SEC
817 mode = constants.REPLACE_DISK_AUTO
819 raise errors.OpPrereqError("Cannot specify disks when using automatic"
820 " mode", errors.ECODE_INVAL)
821 elif new_2ndary is not None or iallocator is not None:
823 mode = constants.REPLACE_DISK_CHG
825 op = opcodes.OpReplaceDisks(instance_name=args[0], disks=disks,
826 remote_node=new_2ndary, mode=mode,
827 iallocator=iallocator,
828 early_release=opts.early_release)
829 SubmitOrSend(op, opts)
833 def FailoverInstance(opts, args):
834 """Failover an instance.
836 The failover is done by shutting it down on its present node and
837 starting it on the secondary.
839 @param opts: the command line options selected by the user
841 @param args: should contain only one element, the instance name
843 @return: the desired exit code
847 instance_name = args[0]
851 _EnsureInstancesExist(cl, [instance_name])
853 usertext = ("Failover will happen to image %s."
854 " This requires a shutdown of the instance. Continue?" %
856 if not AskUser(usertext):
859 op = opcodes.OpFailoverInstance(instance_name=instance_name,
860 ignore_consistency=opts.ignore_consistency,
861 shutdown_timeout=opts.shutdown_timeout)
862 SubmitOrSend(op, opts, cl=cl)
866 def MigrateInstance(opts, args):
867 """Migrate an instance.
869 The migrate is done without shutdown.
871 @param opts: the command line options selected by the user
873 @param args: should contain only one element, the instance name
875 @return: the desired exit code
879 instance_name = args[0]
883 _EnsureInstancesExist(cl, [instance_name])
886 usertext = ("Instance %s will be recovered from a failed migration."
887 " Note that the migration procedure (including cleanup)" %
890 usertext = ("Instance %s will be migrated. Note that migration" %
892 usertext += (" might impact the instance if anything goes wrong"
893 " (e.g. due to bugs in the hypervisor). Continue?")
894 if not AskUser(usertext):
897 # this should be removed once --non-live is deprecated
898 if not opts.live and opts.migration_mode is not None:
899 raise errors.OpPrereqError("Only one of the --non-live and "
900 "--migration-mode options can be passed",
902 if not opts.live: # --non-live passed
903 mode = constants.HT_MIGRATION_NONLIVE
905 mode = opts.migration_mode
907 op = opcodes.OpMigrateInstance(instance_name=instance_name, mode=mode,
908 cleanup=opts.cleanup)
909 SubmitOpCode(op, cl=cl, opts=opts)
913 def MoveInstance(opts, args):
916 @param opts: the command line options selected by the user
918 @param args: should contain only one element, the instance name
920 @return: the desired exit code
924 instance_name = args[0]
928 usertext = ("Instance %s will be moved."
929 " This requires a shutdown of the instance. Continue?" %
931 if not AskUser(usertext):
934 op = opcodes.OpMoveInstance(instance_name=instance_name,
935 target_node=opts.node,
936 shutdown_timeout=opts.shutdown_timeout)
937 SubmitOrSend(op, opts, cl=cl)
941 def ConnectToInstanceConsole(opts, args):
942 """Connect to the console of an instance.
944 @param opts: the command line options selected by the user
946 @param args: should contain only one element, the instance name
948 @return: the desired exit code
951 instance_name = args[0]
953 op = opcodes.OpConnectConsole(instance_name=instance_name)
954 cmd = SubmitOpCode(op, opts=opts)
956 if opts.show_command:
957 ToStdout("%s", utils.ShellQuoteArgs(cmd))
959 result = utils.RunCmd(cmd, interactive=True)
961 raise errors.OpExecError("Console command \"%s\" failed: %s" %
962 (utils.ShellQuoteArgs(cmd), result.fail_reason))
964 return constants.EXIT_SUCCESS
967 def _FormatLogicalID(dev_type, logical_id, roman):
968 """Formats the logical_id of a disk.
971 if dev_type == constants.LD_DRBD8:
972 node_a, node_b, port, minor_a, minor_b, key = logical_id
974 ("nodeA", "%s, minor=%s" % (node_a, compat.TryToRoman(minor_a,
976 ("nodeB", "%s, minor=%s" % (node_b, compat.TryToRoman(minor_b,
978 ("port", compat.TryToRoman(port, convert=roman)),
981 elif dev_type == constants.LD_LV:
982 vg_name, lv_name = logical_id
983 data = ["%s/%s" % (vg_name, lv_name)]
985 data = [str(logical_id)]
990 def _FormatBlockDevInfo(idx, top_level, dev, static, roman):
991 """Show block device information.
993 This is only used by L{ShowInstanceConfig}, but it's too big to be
994 left for an inline definition.
997 @param idx: the index of the current disk
998 @type top_level: boolean
999 @param top_level: if this a top-level disk?
1001 @param dev: dictionary with disk information
1002 @type static: boolean
1003 @param static: wheter the device information doesn't contain
1004 runtime information but only static data
1005 @type roman: boolean
1006 @param roman: whether to try to use roman integers
1007 @return: a list of either strings, tuples or lists
1008 (which should be formatted at a higher indent level)
1011 def helper(dtype, status):
1012 """Format one line for physical device status.
1015 @param dtype: a constant from the L{constants.LDS_BLOCK} set
1017 @param status: a tuple as returned from L{backend.FindBlockDevice}
1018 @return: the string representing the status
1024 (path, major, minor, syncp, estt, degr, ldisk_status) = status
1026 major_string = "N/A"
1028 major_string = str(compat.TryToRoman(major, convert=roman))
1031 minor_string = "N/A"
1033 minor_string = str(compat.TryToRoman(minor, convert=roman))
1035 txt += ("%s (%s:%s)" % (path, major_string, minor_string))
1036 if dtype in (constants.LD_DRBD8, ):
1037 if syncp is not None:
1038 sync_text = "*RECOVERING* %5.2f%%," % syncp
1040 sync_text += " ETA %ss" % compat.TryToRoman(estt, convert=roman)
1042 sync_text += " ETA unknown"
1044 sync_text = "in sync"
1046 degr_text = "*DEGRADED*"
1049 if ldisk_status == constants.LDS_FAULTY:
1050 ldisk_text = " *MISSING DISK*"
1051 elif ldisk_status == constants.LDS_UNKNOWN:
1052 ldisk_text = " *UNCERTAIN STATE*"
1055 txt += (" %s, status %s%s" % (sync_text, degr_text, ldisk_text))
1056 elif dtype == constants.LD_LV:
1057 if ldisk_status == constants.LDS_FAULTY:
1058 ldisk_text = " *FAILED* (failed drive?)"
1066 if dev["iv_name"] is not None:
1067 txt = dev["iv_name"]
1069 txt = "disk %s" % compat.TryToRoman(idx, convert=roman)
1071 txt = "child %s" % compat.TryToRoman(idx, convert=roman)
1072 if isinstance(dev["size"], int):
1073 nice_size = utils.FormatUnit(dev["size"], "h")
1075 nice_size = dev["size"]
1076 d1 = ["- %s: %s, size %s" % (txt, dev["dev_type"], nice_size)]
1079 data.append(("access mode", dev["mode"]))
1080 if dev["logical_id"] is not None:
1082 l_id = _FormatLogicalID(dev["dev_type"], dev["logical_id"], roman)
1084 l_id = [str(dev["logical_id"])]
1086 data.append(("logical_id", l_id[0]))
1089 elif dev["physical_id"] is not None:
1090 data.append("physical_id:")
1091 data.append([dev["physical_id"]])
1093 data.append(("on primary", helper(dev["dev_type"], dev["pstatus"])))
1094 if dev["sstatus"] and not static:
1095 data.append(("on secondary", helper(dev["dev_type"], dev["sstatus"])))
1098 data.append("child devices:")
1099 for c_idx, child in enumerate(dev["children"]):
1100 data.append(_FormatBlockDevInfo(c_idx, False, child, static, roman))
1105 def _FormatList(buf, data, indent_level):
1106 """Formats a list of data at a given indent level.
1108 If the element of the list is:
1109 - a string, it is simply formatted as is
1110 - a tuple, it will be split into key, value and the all the
1111 values in a list will be aligned all at the same start column
1112 - a list, will be recursively formatted
1115 @param buf: the buffer into which we write the output
1116 @param data: the list to format
1117 @type indent_level: int
1118 @param indent_level: the indent level to format at
1121 max_tlen = max([len(elem[0]) for elem in data
1122 if isinstance(elem, tuple)] or [0])
1124 if isinstance(elem, basestring):
1125 buf.write("%*s%s\n" % (2*indent_level, "", elem))
1126 elif isinstance(elem, tuple):
1128 spacer = "%*s" % (max_tlen - len(key), "")
1129 buf.write("%*s%s:%s %s\n" % (2*indent_level, "", key, spacer, value))
1130 elif isinstance(elem, list):
1131 _FormatList(buf, elem, indent_level+1)
1134 def _FormatParameterDict(buf, per_inst, actual):
1135 """Formats a parameter dictionary.
1137 @type buf: L{StringIO}
1138 @param buf: the buffer into which to write
1139 @type per_inst: dict
1140 @param per_inst: the instance's own parameters
1142 @param actual: the current parameter set (including defaults)
1145 for key in sorted(actual):
1146 val = per_inst.get(key, "default (%s)" % actual[key])
1147 buf.write(" - %s: %s\n" % (key, val))
1150 def ShowInstanceConfig(opts, args):
1151 """Compute instance run-time status.
1153 @param opts: the command line options selected by the user
1155 @param args: either an empty list, and then we query all
1156 instances, or should contain a list of instance names
1158 @return: the desired exit code
1161 if not args and not opts.show_all:
1162 ToStderr("No instance selected."
1163 " Please pass in --all if you want to query all instances.\n"
1164 "Note that this can take a long time on a big cluster.")
1166 elif args and opts.show_all:
1167 ToStderr("Cannot use --all if you specify instance names.")
1171 op = opcodes.OpQueryInstanceData(instances=args, static=opts.static)
1172 result = SubmitOpCode(op, opts=opts)
1174 ToStdout("No instances.")
1179 for instance_name in result:
1180 instance = result[instance_name]
1181 buf.write("Instance name: %s\n" % instance["name"])
1182 buf.write("UUID: %s\n" % instance["uuid"])
1183 buf.write("Serial number: %s\n" %
1184 compat.TryToRoman(instance["serial_no"],
1185 convert=opts.roman_integers))
1186 buf.write("Creation time: %s\n" % utils.FormatTime(instance["ctime"]))
1187 buf.write("Modification time: %s\n" % utils.FormatTime(instance["mtime"]))
1188 buf.write("State: configured to be %s" % instance["config_state"])
1190 buf.write(", actual state is %s" % instance["run_state"])
1192 ##buf.write("Considered for memory checks in cluster verify: %s\n" %
1193 ## instance["auto_balance"])
1194 buf.write(" Nodes:\n")
1195 buf.write(" - primary: %s\n" % instance["pnode"])
1196 buf.write(" - secondaries: %s\n" % utils.CommaJoin(instance["snodes"]))
1197 buf.write(" Operating system: %s\n" % instance["os"])
1198 _FormatParameterDict(buf, instance["os_instance"], instance["os_actual"])
1199 if instance.has_key("network_port"):
1200 buf.write(" Allocated network port: %s\n" %
1201 compat.TryToRoman(instance["network_port"],
1202 convert=opts.roman_integers))
1203 buf.write(" Hypervisor: %s\n" % instance["hypervisor"])
1205 # custom VNC console information
1206 vnc_bind_address = instance["hv_actual"].get(constants.HV_VNC_BIND_ADDRESS,
1208 if vnc_bind_address:
1209 port = instance["network_port"]
1210 display = int(port) - constants.VNC_BASE_PORT
1211 if display > 0 and vnc_bind_address == constants.IP4_ADDRESS_ANY:
1212 vnc_console_port = "%s:%s (display %s)" % (instance["pnode"],
1215 elif display > 0 and netutils.IP4Address.IsValid(vnc_bind_address):
1216 vnc_console_port = ("%s:%s (node %s) (display %s)" %
1217 (vnc_bind_address, port,
1218 instance["pnode"], display))
1220 # vnc bind address is a file
1221 vnc_console_port = "%s:%s" % (instance["pnode"],
1223 buf.write(" - console connection: vnc to %s\n" % vnc_console_port)
1225 _FormatParameterDict(buf, instance["hv_instance"], instance["hv_actual"])
1226 buf.write(" Hardware:\n")
1227 buf.write(" - VCPUs: %s\n" %
1228 compat.TryToRoman(instance["be_actual"][constants.BE_VCPUS],
1229 convert=opts.roman_integers))
1230 buf.write(" - memory: %sMiB\n" %
1231 compat.TryToRoman(instance["be_actual"][constants.BE_MEMORY],
1232 convert=opts.roman_integers))
1233 buf.write(" - NICs:\n")
1234 for idx, (ip, mac, mode, link) in enumerate(instance["nics"]):
1235 buf.write(" - nic/%d: MAC: %s, IP: %s, mode: %s, link: %s\n" %
1236 (idx, mac, ip, mode, link))
1237 buf.write(" Disk template: %s\n" % instance["disk_template"])
1238 buf.write(" Disks:\n")
1240 for idx, device in enumerate(instance["disks"]):
1241 _FormatList(buf, _FormatBlockDevInfo(idx, True, device, opts.static,
1242 opts.roman_integers), 2)
1244 ToStdout(buf.getvalue().rstrip('\n'))
1248 def SetInstanceParams(opts, args):
1249 """Modifies an instance.
1251 All parameters take effect only at the next restart of the instance.
1253 @param opts: the command line options selected by the user
1255 @param args: should contain only one element, the instance name
1257 @return: the desired exit code
1260 if not (opts.nics or opts.disks or opts.disk_template or
1261 opts.hvparams or opts.beparams or opts.os or opts.osparams):
1262 ToStderr("Please give at least one of the parameters.")
1265 for param in opts.beparams:
1266 if isinstance(opts.beparams[param], basestring):
1267 if opts.beparams[param].lower() == "default":
1268 opts.beparams[param] = constants.VALUE_DEFAULT
1270 utils.ForceDictType(opts.beparams, constants.BES_PARAMETER_TYPES,
1271 allowed_values=[constants.VALUE_DEFAULT])
1273 for param in opts.hvparams:
1274 if isinstance(opts.hvparams[param], basestring):
1275 if opts.hvparams[param].lower() == "default":
1276 opts.hvparams[param] = constants.VALUE_DEFAULT
1278 utils.ForceDictType(opts.hvparams, constants.HVS_PARAMETER_TYPES,
1279 allowed_values=[constants.VALUE_DEFAULT])
1281 for idx, (nic_op, nic_dict) in enumerate(opts.nics):
1283 nic_op = int(nic_op)
1284 opts.nics[idx] = (nic_op, nic_dict)
1285 except (TypeError, ValueError):
1288 for idx, (disk_op, disk_dict) in enumerate(opts.disks):
1290 disk_op = int(disk_op)
1291 opts.disks[idx] = (disk_op, disk_dict)
1292 except (TypeError, ValueError):
1294 if disk_op == constants.DDM_ADD:
1295 if 'size' not in disk_dict:
1296 raise errors.OpPrereqError("Missing required parameter 'size'",
1298 disk_dict['size'] = utils.ParseUnit(disk_dict['size'])
1300 if (opts.disk_template and
1301 opts.disk_template in constants.DTS_NET_MIRROR and
1303 ToStderr("Changing the disk template to a mirrored one requires"
1304 " specifying a secondary node")
1307 op = opcodes.OpSetInstanceParams(instance_name=args[0],
1310 disk_template=opts.disk_template,
1311 remote_node=opts.node,
1312 hvparams=opts.hvparams,
1313 beparams=opts.beparams,
1315 osparams=opts.osparams,
1316 force_variant=opts.force_variant,
1319 # even if here we process the result, we allow submit only
1320 result = SubmitOrSend(op, opts)
1323 ToStdout("Modified instance %s", args[0])
1324 for param, data in result:
1325 ToStdout(" - %-5s -> %s", param, data)
1326 ToStdout("Please don't forget that most parameters take effect"
1327 " only at the next start of the instance.")
1331 # multi-instance selection options
1332 m_force_multi = cli_option("--force-multiple", dest="force_multi",
1333 help="Do not ask for confirmation when more than"
1334 " one instance is affected",
1335 action="store_true", default=False)
1337 m_pri_node_opt = cli_option("--primary", dest="multi_mode",
1338 help="Filter by nodes (primary only)",
1339 const=_SHUTDOWN_NODES_PRI, action="store_const")
1341 m_sec_node_opt = cli_option("--secondary", dest="multi_mode",
1342 help="Filter by nodes (secondary only)",
1343 const=_SHUTDOWN_NODES_SEC, action="store_const")
1345 m_node_opt = cli_option("--node", dest="multi_mode",
1346 help="Filter by nodes (primary and secondary)",
1347 const=_SHUTDOWN_NODES_BOTH, action="store_const")
1349 m_clust_opt = cli_option("--all", dest="multi_mode",
1350 help="Select all instances in the cluster",
1351 const=_SHUTDOWN_CLUSTER, action="store_const")
1353 m_inst_opt = cli_option("--instance", dest="multi_mode",
1354 help="Filter by instance name [default]",
1355 const=_SHUTDOWN_INSTANCES, action="store_const")
1357 m_node_tags_opt = cli_option("--node-tags", dest="multi_mode",
1358 help="Filter by node tag",
1359 const=_SHUTDOWN_NODES_BOTH_BY_TAGS,
1360 action="store_const")
1362 m_pri_node_tags_opt = cli_option("--pri-node-tags", dest="multi_mode",
1363 help="Filter by primary node tag",
1364 const=_SHUTDOWN_NODES_PRI_BY_TAGS,
1365 action="store_const")
1367 m_sec_node_tags_opt = cli_option("--sec-node-tags", dest="multi_mode",
1368 help="Filter by secondary node tag",
1369 const=_SHUTDOWN_NODES_SEC_BY_TAGS,
1370 action="store_const")
1372 m_inst_tags_opt = cli_option("--tags", dest="multi_mode",
1373 help="Filter by instance tag",
1374 const=_SHUTDOWN_INSTANCES_BY_TAGS,
1375 action="store_const")
1377 # this is defined separately due to readability only
1387 AddInstance, [ArgHost(min=1, max=1)], COMMON_CREATE_OPTS + add_opts,
1388 "[...] -t disk-type -n node[:secondary-node] -o os-type <name>",
1389 "Creates and adds a new instance to the cluster"),
1391 BatchCreate, [ArgFile(min=1, max=1)], [DRY_RUN_OPT, PRIORITY_OPT],
1393 "Create a bunch of instances based on specs in the file."),
1395 ConnectToInstanceConsole, ARGS_ONE_INSTANCE,
1396 [SHOWCMD_OPT, PRIORITY_OPT],
1397 "[--show-cmd] <instance>", "Opens a console on the specified instance"),
1399 FailoverInstance, ARGS_ONE_INSTANCE,
1400 [FORCE_OPT, IGNORE_CONSIST_OPT, SUBMIT_OPT, SHUTDOWN_TIMEOUT_OPT,
1401 DRY_RUN_OPT, PRIORITY_OPT],
1402 "[-f] <instance>", "Stops the instance and starts it on the backup node,"
1403 " using the remote mirror (only for instances of type drbd)"),
1405 MigrateInstance, ARGS_ONE_INSTANCE,
1406 [FORCE_OPT, NONLIVE_OPT, MIGRATION_MODE_OPT, CLEANUP_OPT, DRY_RUN_OPT,
1408 "[-f] <instance>", "Migrate instance to its secondary node"
1409 " (only for instances of type drbd)"),
1411 MoveInstance, ARGS_ONE_INSTANCE,
1412 [FORCE_OPT, SUBMIT_OPT, SINGLE_NODE_OPT, SHUTDOWN_TIMEOUT_OPT,
1413 DRY_RUN_OPT, PRIORITY_OPT],
1414 "[-f] <instance>", "Move instance to an arbitrary node"
1415 " (only for instances of type file and lv)"),
1417 ShowInstanceConfig, ARGS_MANY_INSTANCES,
1418 [STATIC_OPT, ALL_OPT, ROMAN_OPT, PRIORITY_OPT],
1419 "[-s] {--all | <instance>...}",
1420 "Show information on the specified instance(s)"),
1422 ListInstances, ARGS_MANY_INSTANCES,
1423 [NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, SYNC_OPT, ROMAN_OPT],
1425 "Lists the instances and their status. The available fields are"
1426 " (see the man page for details): status, oper_state, oper_ram,"
1427 " oper_vcpus, name, os, pnode, snodes, admin_state, admin_ram,"
1428 " disk_template, ip, mac, nic_mode, nic_link, sda_size, sdb_size,"
1429 " vcpus, serial_no,"
1430 " nic.count, nic.mac/N, nic.ip/N, nic.mode/N, nic.link/N,"
1431 " nic.macs, nic.ips, nic.modes, nic.links,"
1432 " disk.count, disk.size/N, disk.sizes,"
1433 " hv/NAME, be/memory, be/vcpus, be/auto_balance,"
1435 " The default field"
1436 " list is (in order): %s." % utils.CommaJoin(_LIST_DEF_FIELDS),
1439 ReinstallInstance, [ArgInstance()],
1440 [FORCE_OPT, OS_OPT, FORCE_VARIANT_OPT, m_force_multi, m_node_opt,
1441 m_pri_node_opt, m_sec_node_opt, m_clust_opt, m_inst_opt, m_node_tags_opt,
1442 m_pri_node_tags_opt, m_sec_node_tags_opt, m_inst_tags_opt, SELECT_OS_OPT,
1443 SUBMIT_OPT, DRY_RUN_OPT, PRIORITY_OPT, OSPARAMS_OPT],
1444 "[-f] <instance>", "Reinstall a stopped instance"),
1446 RemoveInstance, ARGS_ONE_INSTANCE,
1447 [FORCE_OPT, SHUTDOWN_TIMEOUT_OPT, IGNORE_FAILURES_OPT, SUBMIT_OPT,
1448 DRY_RUN_OPT, PRIORITY_OPT],
1449 "[-f] <instance>", "Shuts down the instance and removes it"),
1452 [ArgInstance(min=1, max=1), ArgHost(min=1, max=1)],
1453 [NOIPCHECK_OPT, NONAMECHECK_OPT, SUBMIT_OPT, DRY_RUN_OPT, PRIORITY_OPT],
1454 "<instance> <new_name>", "Rename the instance"),
1456 ReplaceDisks, ARGS_ONE_INSTANCE,
1457 [AUTO_REPLACE_OPT, DISKIDX_OPT, IALLOCATOR_OPT, EARLY_RELEASE_OPT,
1458 NEW_SECONDARY_OPT, ON_PRIMARY_OPT, ON_SECONDARY_OPT, SUBMIT_OPT,
1459 DRY_RUN_OPT, PRIORITY_OPT],
1460 "[-s|-p|-n NODE|-I NAME] <instance>",
1461 "Replaces all disks for the instance"),
1463 SetInstanceParams, ARGS_ONE_INSTANCE,
1464 [BACKEND_OPT, DISK_OPT, FORCE_OPT, HVOPTS_OPT, NET_OPT, SUBMIT_OPT,
1465 DISK_TEMPLATE_OPT, SINGLE_NODE_OPT, OS_OPT, FORCE_VARIANT_OPT,
1466 OSPARAMS_OPT, DRY_RUN_OPT, PRIORITY_OPT],
1467 "<instance>", "Alters the parameters of an instance"),
1469 GenericManyOps("shutdown", _ShutdownInstance), [ArgInstance()],
1470 [m_node_opt, m_pri_node_opt, m_sec_node_opt, m_clust_opt,
1471 m_node_tags_opt, m_pri_node_tags_opt, m_sec_node_tags_opt,
1472 m_inst_tags_opt, m_inst_opt, m_force_multi, TIMEOUT_OPT, SUBMIT_OPT,
1473 DRY_RUN_OPT, PRIORITY_OPT, IGNORE_OFFLINE_OPT],
1474 "<instance>", "Stops an instance"),
1476 GenericManyOps("startup", _StartupInstance), [ArgInstance()],
1477 [FORCE_OPT, m_force_multi, m_node_opt, m_pri_node_opt, m_sec_node_opt,
1478 m_node_tags_opt, m_pri_node_tags_opt, m_sec_node_tags_opt,
1479 m_inst_tags_opt, m_clust_opt, m_inst_opt, SUBMIT_OPT, HVOPTS_OPT,
1480 BACKEND_OPT, DRY_RUN_OPT, PRIORITY_OPT, IGNORE_OFFLINE_OPT],
1481 "<instance>", "Starts an instance"),
1483 GenericManyOps("reboot", _RebootInstance), [ArgInstance()],
1484 [m_force_multi, REBOOT_TYPE_OPT, IGNORE_SECONDARIES_OPT, m_node_opt,
1485 m_pri_node_opt, m_sec_node_opt, m_clust_opt, m_inst_opt, SUBMIT_OPT,
1486 m_node_tags_opt, m_pri_node_tags_opt, m_sec_node_tags_opt,
1487 m_inst_tags_opt, SHUTDOWN_TIMEOUT_OPT, DRY_RUN_OPT, PRIORITY_OPT],
1488 "<instance>", "Reboots an instance"),
1490 ActivateDisks, ARGS_ONE_INSTANCE,
1491 [SUBMIT_OPT, IGNORE_SIZE_OPT, PRIORITY_OPT],
1492 "<instance>", "Activate an instance's disks"),
1493 'deactivate-disks': (
1494 DeactivateDisks, ARGS_ONE_INSTANCE,
1495 [SUBMIT_OPT, DRY_RUN_OPT, PRIORITY_OPT],
1496 "<instance>", "Deactivate an instance's disks"),
1498 RecreateDisks, ARGS_ONE_INSTANCE,
1499 [SUBMIT_OPT, DISKIDX_OPT, DRY_RUN_OPT, PRIORITY_OPT],
1500 "<instance>", "Recreate an instance's disks"),
1503 [ArgInstance(min=1, max=1), ArgUnknown(min=1, max=1),
1504 ArgUnknown(min=1, max=1)],
1505 [SUBMIT_OPT, NWSYNC_OPT, DRY_RUN_OPT, PRIORITY_OPT],
1506 "<instance> <disk> <size>", "Grow an instance's disk"),
1508 ListTags, ARGS_ONE_INSTANCE, [PRIORITY_OPT],
1509 "<instance_name>", "List the tags of the given instance"),
1511 AddTags, [ArgInstance(min=1, max=1), ArgUnknown()],
1512 [TAG_SRC_OPT, PRIORITY_OPT],
1513 "<instance_name> tag...", "Add tags to the given instance"),
1515 RemoveTags, [ArgInstance(min=1, max=1), ArgUnknown()],
1516 [TAG_SRC_OPT, PRIORITY_OPT],
1517 "<instance_name> tag...", "Remove tags from given instance"),
1520 #: dictionary with aliases for commands
1528 return GenericMain(commands, aliases=aliases,
1529 override={"tag_type": constants.TAG_INSTANCE})