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
31 from cStringIO import StringIO
33 from ganeti.cli import *
34 from ganeti import opcodes
35 from ganeti import constants
36 from ganeti import compat
37 from ganeti import utils
38 from ganeti import errors
39 from ganeti import netutils
42 _SHUTDOWN_CLUSTER = "cluster"
43 _SHUTDOWN_NODES_BOTH = "nodes"
44 _SHUTDOWN_NODES_PRI = "nodes-pri"
45 _SHUTDOWN_NODES_SEC = "nodes-sec"
46 _SHUTDOWN_NODES_BOTH_BY_TAGS = "nodes-by-tags"
47 _SHUTDOWN_NODES_PRI_BY_TAGS = "nodes-pri-by-tags"
48 _SHUTDOWN_NODES_SEC_BY_TAGS = "nodes-sec-by-tags"
49 _SHUTDOWN_INSTANCES = "instances"
50 _SHUTDOWN_INSTANCES_BY_TAGS = "instances-by-tags"
52 _SHUTDOWN_NODES_TAGS_MODES = (
53 _SHUTDOWN_NODES_BOTH_BY_TAGS,
54 _SHUTDOWN_NODES_PRI_BY_TAGS,
55 _SHUTDOWN_NODES_SEC_BY_TAGS)
60 #: default list of options for L{ListInstances}
62 "name", "hypervisor", "os", "pnode", "status", "oper_ram",
66 def _ExpandMultiNames(mode, names, client=None):
67 """Expand the given names using the passed mode.
69 For _SHUTDOWN_CLUSTER, all instances will be returned. For
70 _SHUTDOWN_NODES_PRI/SEC, all instances having those nodes as
71 primary/secondary will be returned. For _SHUTDOWN_NODES_BOTH, all
72 instances having those nodes as either primary or secondary will be
73 returned. For _SHUTDOWN_INSTANCES, the given instances will be
76 @param mode: one of L{_SHUTDOWN_CLUSTER}, L{_SHUTDOWN_NODES_BOTH},
77 L{_SHUTDOWN_NODES_PRI}, L{_SHUTDOWN_NODES_SEC} or
78 L{_SHUTDOWN_INSTANCES}
79 @param names: a list of names; for cluster, it must be empty,
80 and for node and instance it must be a list of valid item
81 names (short names are valid as usual, e.g. node1 instead of
84 @return: the list of names after the expansion
85 @raise errors.ProgrammerError: for unknown selection type
86 @raise errors.OpPrereqError: for invalid input parameters
89 # pylint: disable-msg=W0142
93 if mode == _SHUTDOWN_CLUSTER:
95 raise errors.OpPrereqError("Cluster filter mode takes no arguments",
97 idata = client.QueryInstances([], ["name"], False)
98 inames = [row[0] for row in idata]
100 elif mode in (_SHUTDOWN_NODES_BOTH,
102 _SHUTDOWN_NODES_SEC) + _SHUTDOWN_NODES_TAGS_MODES:
103 if mode in _SHUTDOWN_NODES_TAGS_MODES:
105 raise errors.OpPrereqError("No node tags passed", errors.ECODE_INVAL)
106 ndata = client.QueryNodes([], ["name", "pinst_list",
107 "sinst_list", "tags"], False)
108 ndata = [row for row in ndata if set(row[3]).intersection(names)]
111 raise errors.OpPrereqError("No node names passed", errors.ECODE_INVAL)
112 ndata = client.QueryNodes(names, ["name", "pinst_list", "sinst_list"],
115 ipri = [row[1] for row in ndata]
116 pri_names = list(itertools.chain(*ipri))
117 isec = [row[2] for row in ndata]
118 sec_names = list(itertools.chain(*isec))
119 if mode in (_SHUTDOWN_NODES_BOTH, _SHUTDOWN_NODES_BOTH_BY_TAGS):
120 inames = pri_names + sec_names
121 elif mode in (_SHUTDOWN_NODES_PRI, _SHUTDOWN_NODES_PRI_BY_TAGS):
123 elif mode in (_SHUTDOWN_NODES_SEC, _SHUTDOWN_NODES_SEC_BY_TAGS):
126 raise errors.ProgrammerError("Unhandled shutdown type")
127 elif mode == _SHUTDOWN_INSTANCES:
129 raise errors.OpPrereqError("No instance names passed",
131 idata = client.QueryInstances(names, ["name"], False)
132 inames = [row[0] for row in idata]
133 elif mode == _SHUTDOWN_INSTANCES_BY_TAGS:
135 raise errors.OpPrereqError("No instance tags passed",
137 idata = client.QueryInstances([], ["name", "tags"], False)
138 inames = [row[0] for row in idata if set(row[1]).intersection(names)]
140 raise errors.OpPrereqError("Unknown mode '%s'" % mode, errors.ECODE_INVAL)
145 def _ConfirmOperation(inames, text, extra=""):
146 """Ask the user to confirm an operation on a list of instances.
148 This function is used to request confirmation for doing an operation
149 on a given list of instances.
152 @param inames: the list of names that we display when
153 we ask for confirmation
155 @param text: the operation that the user should confirm
156 (e.g. I{shutdown} or I{startup})
158 @return: True or False depending on user's confirmation.
162 msg = ("The %s will operate on %d instances.\n%s"
163 "Do you want to continue?" % (text, count, extra))
164 affected = ("\nAffected instances:\n" +
165 "\n".join([" %s" % name for name in inames]))
167 choices = [('y', True, 'Yes, execute the %s' % text),
168 ('n', False, 'No, abort the %s' % text)]
171 choices.insert(1, ('v', 'v', 'View the list of affected instances'))
176 choice = AskUser(ask, choices)
179 choice = AskUser(msg + affected, choices)
183 def _EnsureInstancesExist(client, names):
184 """Check for and ensure the given instance names exist.
186 This function will raise an OpPrereqError in case they don't
187 exist. Otherwise it will exit cleanly.
189 @type client: L{ganeti.luxi.Client}
190 @param client: the client to use for the query
192 @param names: the list of instance names to query
193 @raise errors.OpPrereqError: in case any instance is missing
196 # TODO: change LUQueryInstances to that it actually returns None
197 # instead of raising an exception, or devise a better mechanism
198 result = client.QueryInstances(names, ["name"], False)
199 for orig_name, row in zip(names, result):
201 raise errors.OpPrereqError("Instance '%s' does not exist" % orig_name,
205 def GenericManyOps(operation, fn):
206 """Generic multi-instance operations.
208 The will return a wrapper that processes the options and arguments
209 given, and uses the passed function to build the opcode needed for
210 the specific operation. Thus all the generic loop/confirmation code
211 is abstracted into this function.
214 def realfn(opts, args):
215 if opts.multi_mode is None:
216 opts.multi_mode = _SHUTDOWN_INSTANCES
218 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
220 raise errors.OpPrereqError("Selection filter does not match"
221 " any instances", errors.ECODE_INVAL)
222 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
223 if not (opts.force_multi or not multi_on
224 or _ConfirmOperation(inames, operation)):
226 jex = JobExecutor(verbose=multi_on, cl=cl, opts=opts)
229 jex.QueueJob(name, op)
230 results = jex.WaitOrShow(not opts.submit_only)
231 rcode = compat.all(row[0] for row in results)
232 return int(not rcode)
236 def ListInstances(opts, args):
237 """List instances and their properties.
239 @param opts: the command line options selected by the user
241 @param args: should be an empty list
243 @return: the desired exit code
246 selected_fields = ParseFields(opts.output, _LIST_DEF_FIELDS)
248 output = GetClient().QueryInstances(args, selected_fields, opts.do_locking)
250 if not opts.no_headers:
252 "name": "Instance", "os": "OS", "pnode": "Primary_node",
253 "snodes": "Secondary_Nodes", "admin_state": "Autostart",
254 "oper_state": "Running",
255 "oper_ram": "Memory", "disk_template": "Disk_template",
256 "oper_vcpus": "VCPUs",
257 "ip": "IP_address", "mac": "MAC_address",
258 "nic_mode": "NIC_Mode", "nic_link": "NIC_Link",
260 "sda_size": "Disk/0", "sdb_size": "Disk/1",
261 "disk_usage": "DiskUsage",
262 "status": "Status", "tags": "Tags",
263 "network_port": "Network_port",
264 "hv/kernel_path": "Kernel_path",
265 "hv/initrd_path": "Initrd_path",
266 "hv/boot_order": "Boot_order",
269 "hv/cdrom_image_path": "CDROM_image_path",
270 "hv/nic_type": "NIC_type",
271 "hv/disk_type": "Disk_type",
272 "hv/vnc_bind_address": "VNC_bind_address",
273 "serial_no": "SerialNo", "hypervisor": "Hypervisor",
274 "hvparams": "Hypervisor_parameters",
275 "be/memory": "Configured_memory",
278 "be/auto_balance": "Auto_balance",
279 "disk.count": "Disks", "disk.sizes": "Disk_sizes",
280 "nic.count": "NICs", "nic.ips": "NIC_IPs",
281 "nic.modes": "NIC_modes", "nic.links": "NIC_links",
282 "nic.bridges": "NIC_bridges", "nic.macs": "NIC_MACs",
283 "ctime": "CTime", "mtime": "MTime", "uuid": "UUID",
288 unitfields = ["be/memory", "oper_ram", "sd(a|b)_size", "disk\.size/.*"]
289 numfields = ["be/memory", "oper_ram", "sd(a|b)_size", "be/vcpus",
290 "serial_no", "(disk|nic)\.count", "disk\.size/.*"]
292 list_type_fields = ("tags", "disk.sizes", "nic.macs", "nic.ips",
293 "nic.modes", "nic.links", "nic.bridges")
294 # change raw values to nicer strings
296 for idx, field in enumerate(selected_fields):
298 if field == "snodes":
299 val = ",".join(val) or "-"
300 elif field == "admin_state":
305 elif field == "oper_state":
312 elif field == "oper_ram":
315 elif field == "oper_vcpus":
318 elif field == "sda_size" or field == "sdb_size":
321 elif field == "ctime" or field == "mtime":
322 val = utils.FormatTime(val)
323 elif field in list_type_fields:
324 val = ",".join(str(item) for item in val)
327 if opts.roman_integers and isinstance(val, int):
328 val = compat.TryToRoman(val)
331 data = GenerateTable(separator=opts.separator, headers=headers,
332 fields=selected_fields, unitfields=unitfields,
333 numfields=numfields, data=output, units=opts.units)
341 def AddInstance(opts, args):
342 """Add an instance to the cluster.
344 This is just a wrapper over GenericInstanceCreate.
347 return GenericInstanceCreate(constants.INSTANCE_CREATE, opts, args)
350 def BatchCreate(opts, args):
351 """Create instances using a definition file.
353 This function reads a json file with instances defined
357 "disk_size": [20480],
363 "primary_node": "firstnode",
364 "secondary_node": "secondnode",
365 "iallocator": "dumb"}
368 Note that I{primary_node} and I{secondary_node} have precedence over
371 @param opts: the command line options selected by the user
373 @param args: should contain one element, the json filename
375 @return: the desired exit code
378 _DEFAULT_SPECS = {"disk_size": [20 * 1024],
381 "primary_node": None,
382 "secondary_node": None,
389 "file_storage_dir": None,
390 "force_variant": False,
391 "file_driver": 'loop'}
393 def _PopulateWithDefaults(spec):
394 """Returns a new hash combined with default values."""
395 mydict = _DEFAULT_SPECS.copy()
400 """Validate the instance specs."""
401 # Validate fields required under any circumstances
402 for required_field in ('os', 'template'):
403 if required_field not in spec:
404 raise errors.OpPrereqError('Required field "%s" is missing.' %
405 required_field, errors.ECODE_INVAL)
406 # Validate special fields
407 if spec['primary_node'] is not None:
408 if (spec['template'] in constants.DTS_NET_MIRROR and
409 spec['secondary_node'] is None):
410 raise errors.OpPrereqError('Template requires secondary node, but'
411 ' there was no secondary provided.',
413 elif spec['iallocator'] is None:
414 raise errors.OpPrereqError('You have to provide at least a primary_node'
415 ' or an iallocator.',
418 if (spec['hvparams'] and
419 not isinstance(spec['hvparams'], dict)):
420 raise errors.OpPrereqError('Hypervisor parameters must be a dict.',
423 json_filename = args[0]
425 instance_data = simplejson.loads(utils.ReadFile(json_filename))
426 except Exception, err: # pylint: disable-msg=W0703
427 ToStderr("Can't parse the instance definition file: %s" % str(err))
430 if not isinstance(instance_data, dict):
431 ToStderr("The instance definition file is not in dict format.")
434 jex = JobExecutor(opts=opts)
436 # Iterate over the instances and do:
437 # * Populate the specs with default value
438 # * Validate the instance specs
439 i_names = utils.NiceSort(instance_data.keys()) # pylint: disable-msg=E1103
441 specs = instance_data[name]
442 specs = _PopulateWithDefaults(specs)
445 hypervisor = specs['hypervisor']
446 hvparams = specs['hvparams']
449 for elem in specs['disk_size']:
451 size = utils.ParseUnit(elem)
452 except (TypeError, ValueError), err:
453 raise errors.OpPrereqError("Invalid disk size '%s' for"
455 (elem, name, err), errors.ECODE_INVAL)
456 disks.append({"size": size})
458 utils.ForceDictType(specs['backend'], constants.BES_PARAMETER_TYPES)
459 utils.ForceDictType(hvparams, constants.HVS_PARAMETER_TYPES)
462 for field in ('ip', 'mac', 'mode', 'link', 'bridge'):
466 tmp_nics[0][field] = specs[field]
468 if specs['nics'] is not None and tmp_nics:
469 raise errors.OpPrereqError("'nics' list incompatible with using"
470 " individual nic fields as well",
472 elif specs['nics'] is not None:
473 tmp_nics = specs['nics']
477 op = opcodes.OpCreateInstance(instance_name=name,
479 disk_template=specs['template'],
480 mode=constants.INSTANCE_CREATE,
482 force_variant=specs["force_variant"],
483 pnode=specs['primary_node'],
484 snode=specs['secondary_node'],
486 start=specs['start'],
487 ip_check=specs['ip_check'],
488 name_check=specs['name_check'],
490 iallocator=specs['iallocator'],
491 hypervisor=hypervisor,
493 beparams=specs['backend'],
494 file_storage_dir=specs['file_storage_dir'],
495 file_driver=specs['file_driver'])
497 jex.QueueJob(name, op)
498 # we never want to wait, just show the submitted job IDs
499 jex.WaitOrShow(False)
504 def ReinstallInstance(opts, args):
505 """Reinstall an instance.
507 @param opts: the command line options selected by the user
509 @param args: should contain only one element, the name of the
510 instance to be reinstalled
512 @return: the desired exit code
515 # first, compute the desired name list
516 if opts.multi_mode is None:
517 opts.multi_mode = _SHUTDOWN_INSTANCES
519 inames = _ExpandMultiNames(opts.multi_mode, args)
521 raise errors.OpPrereqError("Selection filter does not match any instances",
524 # second, if requested, ask for an OS
525 if opts.select_os is True:
526 op = opcodes.OpDiagnoseOS(output_fields=["name", "variants"], names=[])
527 result = SubmitOpCode(op, opts=opts)
530 ToStdout("Can't get the OS list")
533 ToStdout("Available OS templates:")
536 for (name, variants) in result:
537 for entry in CalculateOSNames(name, variants):
538 ToStdout("%3s: %s", number, entry)
539 choices.append(("%s" % number, entry, entry))
542 choices.append(('x', 'exit', 'Exit gnt-instance reinstall'))
543 selected = AskUser("Enter OS template number (or x to abort):",
546 if selected == 'exit':
547 ToStderr("User aborted reinstall, exiting")
554 # third, get confirmation: multi-reinstall requires --force-multi,
555 # single-reinstall either --force or --force-multi (--force-multi is
556 # a stronger --force)
557 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
559 warn_msg = "Note: this will remove *all* data for the below instances!\n"
560 if not (opts.force_multi or
561 _ConfirmOperation(inames, "reinstall", extra=warn_msg)):
564 if not (opts.force or opts.force_multi):
565 usertext = ("This will reinstall the instance %s and remove"
566 " all data. Continue?") % inames[0]
567 if not AskUser(usertext):
570 jex = JobExecutor(verbose=multi_on, opts=opts)
571 for instance_name in inames:
572 op = opcodes.OpReinstallInstance(instance_name=instance_name,
574 force_variant=opts.force_variant,
575 osparams=opts.osparams)
576 jex.QueueJob(instance_name, op)
578 jex.WaitOrShow(not opts.submit_only)
582 def RemoveInstance(opts, args):
583 """Remove an instance.
585 @param opts: the command line options selected by the user
587 @param args: should contain only one element, the name of
588 the instance to be removed
590 @return: the desired exit code
593 instance_name = args[0]
598 _EnsureInstancesExist(cl, [instance_name])
600 usertext = ("This will remove the volumes of the instance %s"
601 " (including mirrors), thus removing all the data"
602 " of the instance. Continue?") % instance_name
603 if not AskUser(usertext):
606 op = opcodes.OpRemoveInstance(instance_name=instance_name,
607 ignore_failures=opts.ignore_failures,
608 shutdown_timeout=opts.shutdown_timeout)
609 SubmitOrSend(op, opts, cl=cl)
613 def RenameInstance(opts, args):
614 """Rename an instance.
616 @param opts: the command line options selected by the user
618 @param args: should contain two elements, the old and the
621 @return: the desired exit code
624 if not opts.name_check:
625 if not AskUser("As you disabled the check of the DNS entry, please verify"
626 " that '%s' is a FQDN. Continue?" % args[1]):
629 op = opcodes.OpRenameInstance(instance_name=args[0],
631 ip_check=opts.ip_check,
632 name_check=opts.name_check)
633 result = SubmitOrSend(op, opts)
636 ToStdout("Instance '%s' renamed to '%s'", args[0], result)
641 def ActivateDisks(opts, args):
642 """Activate an instance's disks.
644 This serves two purposes:
645 - it allows (as long as the instance is not running)
646 mounting the disks and modifying them from the node
647 - it repairs inactive secondary drbds
649 @param opts: the command line options selected by the user
651 @param args: should contain only one element, the instance name
653 @return: the desired exit code
656 instance_name = args[0]
657 op = opcodes.OpActivateInstanceDisks(instance_name=instance_name,
658 ignore_size=opts.ignore_size)
659 disks_info = SubmitOrSend(op, opts)
660 for host, iname, nname in disks_info:
661 ToStdout("%s:%s:%s", host, iname, nname)
665 def DeactivateDisks(opts, args):
666 """Deactivate an instance's disks.
668 This function takes the instance name, looks for its primary node
669 and the tries to shutdown its block devices on that node.
671 @param opts: the command line options selected by the user
673 @param args: should contain only one element, the instance name
675 @return: the desired exit code
678 instance_name = args[0]
679 op = opcodes.OpDeactivateInstanceDisks(instance_name=instance_name)
680 SubmitOrSend(op, opts)
684 def RecreateDisks(opts, args):
685 """Recreate an instance's disks.
687 @param opts: the command line options selected by the user
689 @param args: should contain only one element, the instance name
691 @return: the desired exit code
694 instance_name = args[0]
697 opts.disks = [int(v) for v in opts.disks.split(",")]
698 except (ValueError, TypeError), err:
699 ToStderr("Invalid disks value: %s" % str(err))
704 op = opcodes.OpRecreateInstanceDisks(instance_name=instance_name,
706 SubmitOrSend(op, opts)
710 def GrowDisk(opts, args):
711 """Grow an instance's disks.
713 @param opts: the command line options selected by the user
715 @param args: should contain two elements, the instance name
716 whose disks we grow and the disk name, e.g. I{sda}
718 @return: the desired exit code
725 except (TypeError, ValueError), err:
726 raise errors.OpPrereqError("Invalid disk index: %s" % str(err),
728 amount = utils.ParseUnit(args[2])
729 op = opcodes.OpGrowDisk(instance_name=instance, disk=disk, amount=amount,
730 wait_for_sync=opts.wait_for_sync)
731 SubmitOrSend(op, opts)
735 def _StartupInstance(name, opts):
736 """Startup instances.
738 This returns the opcode to start an instance, and its decorator will
739 wrap this into a loop starting all desired instances.
741 @param name: the name of the instance to act on
742 @param opts: the command line options selected by the user
743 @return: the opcode needed for the operation
746 op = opcodes.OpStartupInstance(instance_name=name,
748 ignore_offline_nodes=opts.ignore_offline)
749 # do not add these parameters to the opcode unless they're defined
751 op.hvparams = opts.hvparams
753 op.beparams = opts.beparams
757 def _RebootInstance(name, opts):
758 """Reboot instance(s).
760 This returns the opcode to reboot an instance, and its decorator
761 will wrap this into a loop rebooting all desired instances.
763 @param name: the name of the instance to act on
764 @param opts: the command line options selected by the user
765 @return: the opcode needed for the operation
768 return opcodes.OpRebootInstance(instance_name=name,
769 reboot_type=opts.reboot_type,
770 ignore_secondaries=opts.ignore_secondaries,
771 shutdown_timeout=opts.shutdown_timeout)
774 def _ShutdownInstance(name, opts):
775 """Shutdown an instance.
777 This returns the opcode to shutdown an instance, and its decorator
778 will wrap this into a loop shutting down all desired instances.
780 @param name: the name of the instance to act on
781 @param opts: the command line options selected by the user
782 @return: the opcode needed for the operation
785 return opcodes.OpShutdownInstance(instance_name=name,
786 timeout=opts.timeout,
787 ignore_offline_nodes=opts.ignore_offline)
790 def ReplaceDisks(opts, args):
791 """Replace the disks of an instance
793 @param opts: the command line options selected by the user
795 @param args: should contain only one element, the instance name
797 @return: the desired exit code
800 new_2ndary = opts.dst_node
801 iallocator = opts.iallocator
802 if opts.disks is None:
806 disks = [int(i) for i in opts.disks.split(",")]
807 except (TypeError, ValueError), err:
808 raise errors.OpPrereqError("Invalid disk index passed: %s" % str(err),
810 cnt = [opts.on_primary, opts.on_secondary, opts.auto,
811 new_2ndary is not None, iallocator is not None].count(True)
813 raise errors.OpPrereqError("One and only one of the -p, -s, -a, -n and -i"
814 " options must be passed", errors.ECODE_INVAL)
815 elif opts.on_primary:
816 mode = constants.REPLACE_DISK_PRI
817 elif opts.on_secondary:
818 mode = constants.REPLACE_DISK_SEC
820 mode = constants.REPLACE_DISK_AUTO
822 raise errors.OpPrereqError("Cannot specify disks when using automatic"
823 " mode", errors.ECODE_INVAL)
824 elif new_2ndary is not None or iallocator is not None:
826 mode = constants.REPLACE_DISK_CHG
828 op = opcodes.OpReplaceDisks(instance_name=args[0], disks=disks,
829 remote_node=new_2ndary, mode=mode,
830 iallocator=iallocator,
831 early_release=opts.early_release)
832 SubmitOrSend(op, opts)
836 def FailoverInstance(opts, args):
837 """Failover an instance.
839 The failover is done by shutting it down on its present node and
840 starting it on the secondary.
842 @param opts: the command line options selected by the user
844 @param args: should contain only one element, the instance name
846 @return: the desired exit code
850 instance_name = args[0]
854 _EnsureInstancesExist(cl, [instance_name])
856 usertext = ("Failover will happen to image %s."
857 " This requires a shutdown of the instance. Continue?" %
859 if not AskUser(usertext):
862 op = opcodes.OpFailoverInstance(instance_name=instance_name,
863 ignore_consistency=opts.ignore_consistency,
864 shutdown_timeout=opts.shutdown_timeout)
865 SubmitOrSend(op, opts, cl=cl)
869 def MigrateInstance(opts, args):
870 """Migrate an instance.
872 The migrate is done without shutdown.
874 @param opts: the command line options selected by the user
876 @param args: should contain only one element, the instance name
878 @return: the desired exit code
882 instance_name = args[0]
886 _EnsureInstancesExist(cl, [instance_name])
889 usertext = ("Instance %s will be recovered from a failed migration."
890 " Note that the migration procedure (including cleanup)" %
893 usertext = ("Instance %s will be migrated. Note that migration" %
895 usertext += (" might impact the instance if anything goes wrong"
896 " (e.g. due to bugs in the hypervisor). Continue?")
897 if not AskUser(usertext):
900 # this should be removed once --non-live is deprecated
901 if not opts.live and opts.migration_mode is not None:
902 raise errors.OpPrereqError("Only one of the --non-live and "
903 "--migration-mode options can be passed",
905 if not opts.live: # --non-live passed
906 mode = constants.HT_MIGRATION_NONLIVE
908 mode = opts.migration_mode
910 op = opcodes.OpMigrateInstance(instance_name=instance_name, mode=mode,
911 cleanup=opts.cleanup)
912 SubmitOpCode(op, cl=cl, opts=opts)
916 def MoveInstance(opts, args):
919 @param opts: the command line options selected by the user
921 @param args: should contain only one element, the instance name
923 @return: the desired exit code
927 instance_name = args[0]
931 usertext = ("Instance %s will be moved."
932 " This requires a shutdown of the instance. Continue?" %
934 if not AskUser(usertext):
937 op = opcodes.OpMoveInstance(instance_name=instance_name,
938 target_node=opts.node,
939 shutdown_timeout=opts.shutdown_timeout)
940 SubmitOrSend(op, opts, cl=cl)
944 def ConnectToInstanceConsole(opts, args):
945 """Connect to the console of an instance.
947 @param opts: the command line options selected by the user
949 @param args: should contain only one element, the instance name
951 @return: the desired exit code
954 instance_name = args[0]
956 op = opcodes.OpConnectConsole(instance_name=instance_name)
957 cmd = SubmitOpCode(op, opts=opts)
959 if opts.show_command:
960 ToStdout("%s", utils.ShellQuoteArgs(cmd))
963 os.execvp(cmd[0], cmd)
965 ToStderr("Can't run console command %s with arguments:\n'%s'",
966 cmd[0], " ".join(cmd))
967 os._exit(1) # pylint: disable-msg=W0212
970 def _FormatLogicalID(dev_type, logical_id, roman):
971 """Formats the logical_id of a disk.
974 if dev_type == constants.LD_DRBD8:
975 node_a, node_b, port, minor_a, minor_b, key = logical_id
977 ("nodeA", "%s, minor=%s" % (node_a, compat.TryToRoman(minor_a,
979 ("nodeB", "%s, minor=%s" % (node_b, compat.TryToRoman(minor_b,
981 ("port", compat.TryToRoman(port, convert=roman)),
984 elif dev_type == constants.LD_LV:
985 vg_name, lv_name = logical_id
986 data = ["%s/%s" % (vg_name, lv_name)]
988 data = [str(logical_id)]
993 def _FormatBlockDevInfo(idx, top_level, dev, static, roman):
994 """Show block device information.
996 This is only used by L{ShowInstanceConfig}, but it's too big to be
997 left for an inline definition.
1000 @param idx: the index of the current disk
1001 @type top_level: boolean
1002 @param top_level: if this a top-level disk?
1004 @param dev: dictionary with disk information
1005 @type static: boolean
1006 @param static: wheter the device information doesn't contain
1007 runtime information but only static data
1008 @type roman: boolean
1009 @param roman: whether to try to use roman integers
1010 @return: a list of either strings, tuples or lists
1011 (which should be formatted at a higher indent level)
1014 def helper(dtype, status):
1015 """Format one line for physical device status.
1018 @param dtype: a constant from the L{constants.LDS_BLOCK} set
1020 @param status: a tuple as returned from L{backend.FindBlockDevice}
1021 @return: the string representing the status
1027 (path, major, minor, syncp, estt, degr, ldisk_status) = status
1029 major_string = "N/A"
1031 major_string = str(compat.TryToRoman(major, convert=roman))
1034 minor_string = "N/A"
1036 minor_string = str(compat.TryToRoman(minor, convert=roman))
1038 txt += ("%s (%s:%s)" % (path, major_string, minor_string))
1039 if dtype in (constants.LD_DRBD8, ):
1040 if syncp is not None:
1041 sync_text = "*RECOVERING* %5.2f%%," % syncp
1043 sync_text += " ETA %ss" % compat.TryToRoman(estt, convert=roman)
1045 sync_text += " ETA unknown"
1047 sync_text = "in sync"
1049 degr_text = "*DEGRADED*"
1052 if ldisk_status == constants.LDS_FAULTY:
1053 ldisk_text = " *MISSING DISK*"
1054 elif ldisk_status == constants.LDS_UNKNOWN:
1055 ldisk_text = " *UNCERTAIN STATE*"
1058 txt += (" %s, status %s%s" % (sync_text, degr_text, ldisk_text))
1059 elif dtype == constants.LD_LV:
1060 if ldisk_status == constants.LDS_FAULTY:
1061 ldisk_text = " *FAILED* (failed drive?)"
1069 if dev["iv_name"] is not None:
1070 txt = dev["iv_name"]
1072 txt = "disk %s" % compat.TryToRoman(idx, convert=roman)
1074 txt = "child %s" % compat.TryToRoman(idx, convert=roman)
1075 if isinstance(dev["size"], int):
1076 nice_size = utils.FormatUnit(dev["size"], "h")
1078 nice_size = dev["size"]
1079 d1 = ["- %s: %s, size %s" % (txt, dev["dev_type"], nice_size)]
1082 data.append(("access mode", dev["mode"]))
1083 if dev["logical_id"] is not None:
1085 l_id = _FormatLogicalID(dev["dev_type"], dev["logical_id"], roman)
1087 l_id = [str(dev["logical_id"])]
1089 data.append(("logical_id", l_id[0]))
1092 elif dev["physical_id"] is not None:
1093 data.append("physical_id:")
1094 data.append([dev["physical_id"]])
1096 data.append(("on primary", helper(dev["dev_type"], dev["pstatus"])))
1097 if dev["sstatus"] and not static:
1098 data.append(("on secondary", helper(dev["dev_type"], dev["sstatus"])))
1101 data.append("child devices:")
1102 for c_idx, child in enumerate(dev["children"]):
1103 data.append(_FormatBlockDevInfo(c_idx, False, child, static, roman))
1108 def _FormatList(buf, data, indent_level):
1109 """Formats a list of data at a given indent level.
1111 If the element of the list is:
1112 - a string, it is simply formatted as is
1113 - a tuple, it will be split into key, value and the all the
1114 values in a list will be aligned all at the same start column
1115 - a list, will be recursively formatted
1118 @param buf: the buffer into which we write the output
1119 @param data: the list to format
1120 @type indent_level: int
1121 @param indent_level: the indent level to format at
1124 max_tlen = max([len(elem[0]) for elem in data
1125 if isinstance(elem, tuple)] or [0])
1127 if isinstance(elem, basestring):
1128 buf.write("%*s%s\n" % (2*indent_level, "", elem))
1129 elif isinstance(elem, tuple):
1131 spacer = "%*s" % (max_tlen - len(key), "")
1132 buf.write("%*s%s:%s %s\n" % (2*indent_level, "", key, spacer, value))
1133 elif isinstance(elem, list):
1134 _FormatList(buf, elem, indent_level+1)
1137 def _FormatParameterDict(buf, per_inst, actual):
1138 """Formats a parameter dictionary.
1140 @type buf: L{StringIO}
1141 @param buf: the buffer into which to write
1142 @type per_inst: dict
1143 @param per_inst: the instance's own parameters
1145 @param actual: the current parameter set (including defaults)
1148 for key in sorted(actual):
1149 val = per_inst.get(key, "default (%s)" % actual[key])
1150 buf.write(" - %s: %s\n" % (key, val))
1152 def ShowInstanceConfig(opts, args):
1153 """Compute instance run-time status.
1155 @param opts: the command line options selected by the user
1157 @param args: either an empty list, and then we query all
1158 instances, or should contain a list of instance names
1160 @return: the desired exit code
1163 if not args and not opts.show_all:
1164 ToStderr("No instance selected."
1165 " Please pass in --all if you want to query all instances.\n"
1166 "Note that this can take a long time on a big cluster.")
1168 elif args and opts.show_all:
1169 ToStderr("Cannot use --all if you specify instance names.")
1173 op = opcodes.OpQueryInstanceData(instances=args, static=opts.static)
1174 result = SubmitOpCode(op, opts=opts)
1176 ToStdout("No instances.")
1181 for instance_name in result:
1182 instance = result[instance_name]
1183 buf.write("Instance name: %s\n" % instance["name"])
1184 buf.write("UUID: %s\n" % instance["uuid"])
1185 buf.write("Serial number: %s\n" %
1186 compat.TryToRoman(instance["serial_no"],
1187 convert=opts.roman_integers))
1188 buf.write("Creation time: %s\n" % utils.FormatTime(instance["ctime"]))
1189 buf.write("Modification time: %s\n" % utils.FormatTime(instance["mtime"]))
1190 buf.write("State: configured to be %s" % instance["config_state"])
1192 buf.write(", actual state is %s" % instance["run_state"])
1194 ##buf.write("Considered for memory checks in cluster verify: %s\n" %
1195 ## instance["auto_balance"])
1196 buf.write(" Nodes:\n")
1197 buf.write(" - primary: %s\n" % instance["pnode"])
1198 buf.write(" - secondaries: %s\n" % utils.CommaJoin(instance["snodes"]))
1199 buf.write(" Operating system: %s\n" % instance["os"])
1200 _FormatParameterDict(buf, instance["os_instance"], instance["os_actual"])
1201 if instance.has_key("network_port"):
1202 buf.write(" Allocated network port: %s\n" %
1203 compat.TryToRoman(instance["network_port"],
1204 convert=opts.roman_integers))
1205 buf.write(" Hypervisor: %s\n" % instance["hypervisor"])
1207 # custom VNC console information
1208 vnc_bind_address = instance["hv_actual"].get(constants.HV_VNC_BIND_ADDRESS,
1210 if vnc_bind_address:
1211 port = instance["network_port"]
1212 display = int(port) - constants.VNC_BASE_PORT
1213 if display > 0 and vnc_bind_address == constants.IP4_ADDRESS_ANY:
1214 vnc_console_port = "%s:%s (display %s)" % (instance["pnode"],
1217 elif display > 0 and netutils.IP4Address.IsValid(vnc_bind_address):
1218 vnc_console_port = ("%s:%s (node %s) (display %s)" %
1219 (vnc_bind_address, port,
1220 instance["pnode"], display))
1222 # vnc bind address is a file
1223 vnc_console_port = "%s:%s" % (instance["pnode"],
1225 buf.write(" - console connection: vnc to %s\n" % vnc_console_port)
1227 _FormatParameterDict(buf, instance["hv_instance"], instance["hv_actual"])
1228 buf.write(" Hardware:\n")
1229 buf.write(" - VCPUs: %s\n" %
1230 compat.TryToRoman(instance["be_actual"][constants.BE_VCPUS],
1231 convert=opts.roman_integers))
1232 buf.write(" - memory: %sMiB\n" %
1233 compat.TryToRoman(instance["be_actual"][constants.BE_MEMORY],
1234 convert=opts.roman_integers))
1235 buf.write(" - NICs:\n")
1236 for idx, (ip, mac, mode, link) in enumerate(instance["nics"]):
1237 buf.write(" - nic/%d: MAC: %s, IP: %s, mode: %s, link: %s\n" %
1238 (idx, mac, ip, mode, link))
1239 buf.write(" Disks:\n")
1241 for idx, device in enumerate(instance["disks"]):
1242 _FormatList(buf, _FormatBlockDevInfo(idx, True, device, opts.static,
1243 opts.roman_integers), 2)
1245 ToStdout(buf.getvalue().rstrip('\n'))
1249 def SetInstanceParams(opts, args):
1250 """Modifies an instance.
1252 All parameters take effect only at the next restart of the instance.
1254 @param opts: the command line options selected by the user
1256 @param args: should contain only one element, the instance name
1258 @return: the desired exit code
1261 if not (opts.nics or opts.disks or opts.disk_template or
1262 opts.hvparams or opts.beparams or opts.os or opts.osparams):
1263 ToStderr("Please give at least one of the parameters.")
1266 for param in opts.beparams:
1267 if isinstance(opts.beparams[param], basestring):
1268 if opts.beparams[param].lower() == "default":
1269 opts.beparams[param] = constants.VALUE_DEFAULT
1271 utils.ForceDictType(opts.beparams, constants.BES_PARAMETER_TYPES,
1272 allowed_values=[constants.VALUE_DEFAULT])
1274 for param in opts.hvparams:
1275 if isinstance(opts.hvparams[param], basestring):
1276 if opts.hvparams[param].lower() == "default":
1277 opts.hvparams[param] = constants.VALUE_DEFAULT
1279 utils.ForceDictType(opts.hvparams, constants.HVS_PARAMETER_TYPES,
1280 allowed_values=[constants.VALUE_DEFAULT])
1282 for idx, (nic_op, nic_dict) in enumerate(opts.nics):
1284 nic_op = int(nic_op)
1285 opts.nics[idx] = (nic_op, nic_dict)
1286 except (TypeError, ValueError):
1289 for idx, (disk_op, disk_dict) in enumerate(opts.disks):
1291 disk_op = int(disk_op)
1292 opts.disks[idx] = (disk_op, disk_dict)
1293 except (TypeError, ValueError):
1295 if disk_op == constants.DDM_ADD:
1296 if 'size' not in disk_dict:
1297 raise errors.OpPrereqError("Missing required parameter 'size'",
1299 disk_dict['size'] = utils.ParseUnit(disk_dict['size'])
1301 if (opts.disk_template and
1302 opts.disk_template in constants.DTS_NET_MIRROR and
1304 ToStderr("Changing the disk template to a mirrored one requires"
1305 " specifying a secondary node")
1308 op = opcodes.OpSetInstanceParams(instance_name=args[0],
1311 disk_template=opts.disk_template,
1312 remote_node=opts.node,
1313 hvparams=opts.hvparams,
1314 beparams=opts.beparams,
1316 osparams=opts.osparams,
1317 force_variant=opts.force_variant,
1320 # even if here we process the result, we allow submit only
1321 result = SubmitOrSend(op, opts)
1324 ToStdout("Modified instance %s", args[0])
1325 for param, data in result:
1326 ToStdout(" - %-5s -> %s", param, data)
1327 ToStdout("Please don't forget that most parameters take effect"
1328 " only at the next start of the instance.")
1332 # multi-instance selection options
1333 m_force_multi = cli_option("--force-multiple", dest="force_multi",
1334 help="Do not ask for confirmation when more than"
1335 " one instance is affected",
1336 action="store_true", default=False)
1338 m_pri_node_opt = cli_option("--primary", dest="multi_mode",
1339 help="Filter by nodes (primary only)",
1340 const=_SHUTDOWN_NODES_PRI, action="store_const")
1342 m_sec_node_opt = cli_option("--secondary", dest="multi_mode",
1343 help="Filter by nodes (secondary only)",
1344 const=_SHUTDOWN_NODES_SEC, action="store_const")
1346 m_node_opt = cli_option("--node", dest="multi_mode",
1347 help="Filter by nodes (primary and secondary)",
1348 const=_SHUTDOWN_NODES_BOTH, action="store_const")
1350 m_clust_opt = cli_option("--all", dest="multi_mode",
1351 help="Select all instances in the cluster",
1352 const=_SHUTDOWN_CLUSTER, action="store_const")
1354 m_inst_opt = cli_option("--instance", dest="multi_mode",
1355 help="Filter by instance name [default]",
1356 const=_SHUTDOWN_INSTANCES, action="store_const")
1358 m_node_tags_opt = cli_option("--node-tags", dest="multi_mode",
1359 help="Filter by node tag",
1360 const=_SHUTDOWN_NODES_BOTH_BY_TAGS,
1361 action="store_const")
1363 m_pri_node_tags_opt = cli_option("--pri-node-tags", dest="multi_mode",
1364 help="Filter by primary node tag",
1365 const=_SHUTDOWN_NODES_PRI_BY_TAGS,
1366 action="store_const")
1368 m_sec_node_tags_opt = cli_option("--sec-node-tags", dest="multi_mode",
1369 help="Filter by secondary node tag",
1370 const=_SHUTDOWN_NODES_SEC_BY_TAGS,
1371 action="store_const")
1373 m_inst_tags_opt = cli_option("--tags", dest="multi_mode",
1374 help="Filter by instance tag",
1375 const=_SHUTDOWN_INSTANCES_BY_TAGS,
1376 action="store_const")
1378 # this is defined separately due to readability only
1388 AddInstance, [ArgHost(min=1, max=1)], COMMON_CREATE_OPTS + add_opts,
1389 "[...] -t disk-type -n node[:secondary-node] -o os-type <name>",
1390 "Creates and adds a new instance to the cluster"),
1392 BatchCreate, [ArgFile(min=1, max=1)], [DRY_RUN_OPT, PRIORITY_OPT],
1394 "Create a bunch of instances based on specs in the file."),
1396 ConnectToInstanceConsole, ARGS_ONE_INSTANCE,
1397 [SHOWCMD_OPT, PRIORITY_OPT],
1398 "[--show-cmd] <instance>", "Opens a console on the specified instance"),
1400 FailoverInstance, ARGS_ONE_INSTANCE,
1401 [FORCE_OPT, IGNORE_CONSIST_OPT, SUBMIT_OPT, SHUTDOWN_TIMEOUT_OPT,
1402 DRY_RUN_OPT, PRIORITY_OPT],
1403 "[-f] <instance>", "Stops the instance and starts it on the backup node,"
1404 " using the remote mirror (only for instances of type drbd)"),
1406 MigrateInstance, ARGS_ONE_INSTANCE,
1407 [FORCE_OPT, NONLIVE_OPT, MIGRATION_MODE_OPT, CLEANUP_OPT, DRY_RUN_OPT,
1409 "[-f] <instance>", "Migrate instance to its secondary node"
1410 " (only for instances of type drbd)"),
1412 MoveInstance, ARGS_ONE_INSTANCE,
1413 [FORCE_OPT, SUBMIT_OPT, SINGLE_NODE_OPT, SHUTDOWN_TIMEOUT_OPT,
1414 DRY_RUN_OPT, PRIORITY_OPT],
1415 "[-f] <instance>", "Move instance to an arbitrary node"
1416 " (only for instances of type file and lv)"),
1418 ShowInstanceConfig, ARGS_MANY_INSTANCES,
1419 [STATIC_OPT, ALL_OPT, ROMAN_OPT, PRIORITY_OPT],
1420 "[-s] {--all | <instance>...}",
1421 "Show information on the specified instance(s)"),
1423 ListInstances, ARGS_MANY_INSTANCES,
1424 [NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, SYNC_OPT, ROMAN_OPT],
1426 "Lists the instances and their status. The available fields are"
1427 " (see the man page for details): status, oper_state, oper_ram,"
1428 " oper_vcpus, name, os, pnode, snodes, admin_state, admin_ram,"
1429 " disk_template, ip, mac, nic_mode, nic_link, sda_size, sdb_size,"
1430 " vcpus, serial_no,"
1431 " nic.count, nic.mac/N, nic.ip/N, nic.mode/N, nic.link/N,"
1432 " nic.macs, nic.ips, nic.modes, nic.links,"
1433 " disk.count, disk.size/N, disk.sizes,"
1434 " hv/NAME, be/memory, be/vcpus, be/auto_balance,"
1436 " The default field"
1437 " list is (in order): %s." % utils.CommaJoin(_LIST_DEF_FIELDS),
1440 ReinstallInstance, [ArgInstance()],
1441 [FORCE_OPT, OS_OPT, FORCE_VARIANT_OPT, m_force_multi, m_node_opt,
1442 m_pri_node_opt, m_sec_node_opt, m_clust_opt, m_inst_opt, m_node_tags_opt,
1443 m_pri_node_tags_opt, m_sec_node_tags_opt, m_inst_tags_opt, SELECT_OS_OPT,
1444 SUBMIT_OPT, DRY_RUN_OPT, PRIORITY_OPT, OSPARAMS_OPT],
1445 "[-f] <instance>", "Reinstall a stopped instance"),
1447 RemoveInstance, ARGS_ONE_INSTANCE,
1448 [FORCE_OPT, SHUTDOWN_TIMEOUT_OPT, IGNORE_FAILURES_OPT, SUBMIT_OPT,
1449 DRY_RUN_OPT, PRIORITY_OPT],
1450 "[-f] <instance>", "Shuts down the instance and removes it"),
1453 [ArgInstance(min=1, max=1), ArgHost(min=1, max=1)],
1454 [NOIPCHECK_OPT, NONAMECHECK_OPT, SUBMIT_OPT, DRY_RUN_OPT, PRIORITY_OPT],
1455 "<instance> <new_name>", "Rename the instance"),
1457 ReplaceDisks, ARGS_ONE_INSTANCE,
1458 [AUTO_REPLACE_OPT, DISKIDX_OPT, IALLOCATOR_OPT, EARLY_RELEASE_OPT,
1459 NEW_SECONDARY_OPT, ON_PRIMARY_OPT, ON_SECONDARY_OPT, SUBMIT_OPT,
1460 DRY_RUN_OPT, PRIORITY_OPT],
1461 "[-s|-p|-n NODE|-I NAME] <instance>",
1462 "Replaces all disks for the instance"),
1464 SetInstanceParams, ARGS_ONE_INSTANCE,
1465 [BACKEND_OPT, DISK_OPT, FORCE_OPT, HVOPTS_OPT, NET_OPT, SUBMIT_OPT,
1466 DISK_TEMPLATE_OPT, SINGLE_NODE_OPT, OS_OPT, FORCE_VARIANT_OPT,
1467 OSPARAMS_OPT, DRY_RUN_OPT, PRIORITY_OPT],
1468 "<instance>", "Alters the parameters of an instance"),
1470 GenericManyOps("shutdown", _ShutdownInstance), [ArgInstance()],
1471 [m_node_opt, m_pri_node_opt, m_sec_node_opt, m_clust_opt,
1472 m_node_tags_opt, m_pri_node_tags_opt, m_sec_node_tags_opt,
1473 m_inst_tags_opt, m_inst_opt, m_force_multi, TIMEOUT_OPT, SUBMIT_OPT,
1474 DRY_RUN_OPT, PRIORITY_OPT, IGNORE_OFFLINE_OPT],
1475 "<instance>", "Stops an instance"),
1477 GenericManyOps("startup", _StartupInstance), [ArgInstance()],
1478 [FORCE_OPT, m_force_multi, m_node_opt, m_pri_node_opt, m_sec_node_opt,
1479 m_node_tags_opt, m_pri_node_tags_opt, m_sec_node_tags_opt,
1480 m_inst_tags_opt, m_clust_opt, m_inst_opt, SUBMIT_OPT, HVOPTS_OPT,
1481 BACKEND_OPT, DRY_RUN_OPT, PRIORITY_OPT, IGNORE_OFFLINE_OPT],
1482 "<instance>", "Starts an instance"),
1484 GenericManyOps("reboot", _RebootInstance), [ArgInstance()],
1485 [m_force_multi, REBOOT_TYPE_OPT, IGNORE_SECONDARIES_OPT, m_node_opt,
1486 m_pri_node_opt, m_sec_node_opt, m_clust_opt, m_inst_opt, SUBMIT_OPT,
1487 m_node_tags_opt, m_pri_node_tags_opt, m_sec_node_tags_opt,
1488 m_inst_tags_opt, SHUTDOWN_TIMEOUT_OPT, DRY_RUN_OPT, PRIORITY_OPT],
1489 "<instance>", "Reboots an instance"),
1491 ActivateDisks, ARGS_ONE_INSTANCE,
1492 [SUBMIT_OPT, IGNORE_SIZE_OPT, PRIORITY_OPT],
1493 "<instance>", "Activate an instance's disks"),
1494 'deactivate-disks': (
1495 DeactivateDisks, ARGS_ONE_INSTANCE,
1496 [SUBMIT_OPT, DRY_RUN_OPT, PRIORITY_OPT],
1497 "<instance>", "Deactivate an instance's disks"),
1499 RecreateDisks, ARGS_ONE_INSTANCE,
1500 [SUBMIT_OPT, DISKIDX_OPT, DRY_RUN_OPT, PRIORITY_OPT],
1501 "<instance>", "Recreate an instance's disks"),
1504 [ArgInstance(min=1, max=1), ArgUnknown(min=1, max=1),
1505 ArgUnknown(min=1, max=1)],
1506 [SUBMIT_OPT, NWSYNC_OPT, DRY_RUN_OPT, PRIORITY_OPT],
1507 "<instance> <disk> <size>", "Grow an instance's disk"),
1509 ListTags, ARGS_ONE_INSTANCE, [PRIORITY_OPT],
1510 "<instance_name>", "List the tags of the given instance"),
1512 AddTags, [ArgInstance(min=1, max=1), ArgUnknown()],
1513 [TAG_SRC_OPT, PRIORITY_OPT],
1514 "<instance_name> tag...", "Add tags to the given instance"),
1516 RemoveTags, [ArgInstance(min=1, max=1), ArgUnknown()],
1517 [TAG_SRC_OPT, PRIORITY_OPT],
1518 "<instance_name> tag...", "Remove tags from given instance"),
1521 #: dictionary with aliases for commands
1529 return GenericMain(commands, aliases=aliases,
1530 override={"tag_type": constants.TAG_INSTANCE})