4 # Copyright (C) 2006, 2007 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
32 from cStringIO import StringIO
34 from ganeti.cli import *
35 from ganeti import opcodes
36 from ganeti import constants
37 from ganeti import utils
38 from ganeti import errors
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)
59 #: default list of options for L{ListInstances}
61 "name", "hypervisor", "os", "pnode", "status", "oper_ram",
65 def _ExpandMultiNames(mode, names, client=None):
66 """Expand the given names using the passed mode.
68 For _SHUTDOWN_CLUSTER, all instances will be returned. For
69 _SHUTDOWN_NODES_PRI/SEC, all instances having those nodes as
70 primary/secondary will be returned. For _SHUTDOWN_NODES_BOTH, all
71 instances having those nodes as either primary or secondary will be
72 returned. For _SHUTDOWN_INSTANCES, the given instances will be
75 @param mode: one of L{_SHUTDOWN_CLUSTER}, L{_SHUTDOWN_NODES_BOTH},
76 L{_SHUTDOWN_NODES_PRI}, L{_SHUTDOWN_NODES_SEC} or
77 L{_SHUTDOWN_INSTANCES}
78 @param names: a list of names; for cluster, it must be empty,
79 and for node and instance it must be a list of valid item
80 names (short names are valid as usual, e.g. node1 instead of
83 @return: the list of names after the expansion
84 @raise errors.ProgrammerError: for unknown selection type
85 @raise errors.OpPrereqError: for invalid input parameters
88 # pylint: disable-msg=W0142
92 if mode == _SHUTDOWN_CLUSTER:
94 raise errors.OpPrereqError("Cluster filter mode takes no arguments",
96 idata = client.QueryInstances([], ["name"], False)
97 inames = [row[0] for row in idata]
99 elif mode in (_SHUTDOWN_NODES_BOTH,
101 _SHUTDOWN_NODES_SEC) + _SHUTDOWN_NODES_TAGS_MODES:
102 if mode in _SHUTDOWN_NODES_TAGS_MODES:
104 raise errors.OpPrereqError("No node tags passed", errors.ECODE_INVAL)
105 ndata = client.QueryNodes([], ["name", "pinst_list",
106 "sinst_list", "tags"], False)
107 ndata = [row for row in ndata if set(row[3]).intersection(names)]
110 raise errors.OpPrereqError("No node names passed", errors.ECODE_INVAL)
111 ndata = client.QueryNodes(names, ["name", "pinst_list", "sinst_list"],
114 ipri = [row[1] for row in ndata]
115 pri_names = list(itertools.chain(*ipri))
116 isec = [row[2] for row in ndata]
117 sec_names = list(itertools.chain(*isec))
118 if mode in (_SHUTDOWN_NODES_BOTH, _SHUTDOWN_NODES_BOTH_BY_TAGS):
119 inames = pri_names + sec_names
120 elif mode in (_SHUTDOWN_NODES_PRI, _SHUTDOWN_NODES_PRI_BY_TAGS):
122 elif mode in (_SHUTDOWN_NODES_SEC, _SHUTDOWN_NODES_SEC_BY_TAGS):
125 raise errors.ProgrammerError("Unhandled shutdown type")
126 elif mode == _SHUTDOWN_INSTANCES:
128 raise errors.OpPrereqError("No instance names passed",
130 idata = client.QueryInstances(names, ["name"], False)
131 inames = [row[0] for row in idata]
132 elif mode == _SHUTDOWN_INSTANCES_BY_TAGS:
134 raise errors.OpPrereqError("No instance tags passed",
136 idata = client.QueryInstances([], ["name", "tags"], False)
137 inames = [row[0] for row in idata if set(row[1]).intersection(names)]
139 raise errors.OpPrereqError("Unknown mode '%s'" % mode, errors.ECODE_INVAL)
144 def _ConfirmOperation(inames, text, extra=""):
145 """Ask the user to confirm an operation on a list of instances.
147 This function is used to request confirmation for doing an operation
148 on a given list of instances.
151 @param inames: the list of names that we display when
152 we ask for confirmation
154 @param text: the operation that the user should confirm
155 (e.g. I{shutdown} or I{startup})
157 @return: True or False depending on user's confirmation.
161 msg = ("The %s will operate on %d instances.\n%s"
162 "Do you want to continue?" % (text, count, extra))
163 affected = ("\nAffected instances:\n" +
164 "\n".join([" %s" % name for name in inames]))
166 choices = [('y', True, 'Yes, execute the %s' % text),
167 ('n', False, 'No, abort the %s' % text)]
170 choices.insert(1, ('v', 'v', 'View the list of affected instances'))
175 choice = AskUser(ask, choices)
178 choice = AskUser(msg + affected, choices)
182 def _EnsureInstancesExist(client, names):
183 """Check for and ensure the given instance names exist.
185 This function will raise an OpPrereqError in case they don't
186 exist. Otherwise it will exit cleanly.
188 @type client: L{ganeti.luxi.Client}
189 @param client: the client to use for the query
191 @param names: the list of instance names to query
192 @raise errors.OpPrereqError: in case any instance is missing
195 # TODO: change LUQueryInstances to that it actually returns None
196 # instead of raising an exception, or devise a better mechanism
197 result = client.QueryInstances(names, ["name"], False)
198 for orig_name, row in zip(names, result):
200 raise errors.OpPrereqError("Instance '%s' does not exist" % orig_name,
204 def GenericManyOps(operation, fn):
205 """Generic multi-instance operations.
207 The will return a wrapper that processes the options and arguments
208 given, and uses the passed function to build the opcode needed for
209 the specific operation. Thus all the generic loop/confirmation code
210 is abstracted into this function.
213 def realfn(opts, args):
214 if opts.multi_mode is None:
215 opts.multi_mode = _SHUTDOWN_INSTANCES
217 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
219 raise errors.OpPrereqError("Selection filter does not match"
220 " any instances", errors.ECODE_INVAL)
221 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
222 if not (opts.force_multi or not multi_on
223 or _ConfirmOperation(inames, operation)):
225 jex = JobExecutor(verbose=multi_on, cl=cl, opts=opts)
228 jex.QueueJob(name, op)
229 jex.WaitOrShow(not opts.submit_only)
234 def ListInstances(opts, args):
235 """List instances and their properties.
237 @param opts: the command line options selected by the user
239 @param args: should be an empty list
241 @return: the desired exit code
244 if opts.output is None:
245 selected_fields = _LIST_DEF_FIELDS
246 elif opts.output.startswith("+"):
247 selected_fields = _LIST_DEF_FIELDS + opts.output[1:].split(",")
249 selected_fields = opts.output.split(",")
251 output = GetClient().QueryInstances(args, selected_fields, opts.do_locking)
253 if not opts.no_headers:
255 "name": "Instance", "os": "OS", "pnode": "Primary_node",
256 "snodes": "Secondary_Nodes", "admin_state": "Autostart",
257 "oper_state": "Running",
258 "oper_ram": "Memory", "disk_template": "Disk_template",
259 "ip": "IP_address", "mac": "MAC_address",
260 "nic_mode": "NIC_Mode", "nic_link": "NIC_Link",
262 "sda_size": "Disk/0", "sdb_size": "Disk/1",
263 "disk_usage": "DiskUsage",
264 "status": "Status", "tags": "Tags",
265 "network_port": "Network_port",
266 "hv/kernel_path": "Kernel_path",
267 "hv/initrd_path": "Initrd_path",
268 "hv/boot_order": "Boot_order",
271 "hv/cdrom_image_path": "CDROM_image_path",
272 "hv/nic_type": "NIC_type",
273 "hv/disk_type": "Disk_type",
274 "hv/vnc_bind_address": "VNC_bind_address",
275 "serial_no": "SerialNo", "hypervisor": "Hypervisor",
276 "hvparams": "Hypervisor_parameters",
277 "be/memory": "Configured_memory",
280 "be/auto_balance": "Auto_balance",
281 "disk.count": "Disks", "disk.sizes": "Disk_sizes",
282 "nic.count": "NICs", "nic.ips": "NIC_IPs",
283 "nic.modes": "NIC_modes", "nic.links": "NIC_links",
284 "nic.bridges": "NIC_bridges", "nic.macs": "NIC_MACs",
285 "ctime": "CTime", "mtime": "MTime", "uuid": "UUID",
290 unitfields = ["be/memory", "oper_ram", "sd(a|b)_size", "disk\.size/.*"]
291 numfields = ["be/memory", "oper_ram", "sd(a|b)_size", "be/vcpus",
292 "serial_no", "(disk|nic)\.count", "disk\.size/.*"]
294 list_type_fields = ("tags", "disk.sizes", "nic.macs", "nic.ips",
295 "nic.modes", "nic.links", "nic.bridges")
296 # change raw values to nicer strings
298 for idx, field in enumerate(selected_fields):
300 if field == "snodes":
301 val = ",".join(val) or "-"
302 elif field == "admin_state":
307 elif field == "oper_state":
314 elif field == "oper_ram":
317 elif field == "sda_size" or field == "sdb_size":
320 elif field == "ctime" or field == "mtime":
321 val = utils.FormatTime(val)
322 elif field in list_type_fields:
323 val = ",".join(str(item) for item in 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 "file_driver": 'loop'}
389 def _PopulateWithDefaults(spec):
390 """Returns a new hash combined with default values."""
391 mydict = _DEFAULT_SPECS.copy()
396 """Validate the instance specs."""
397 # Validate fields required under any circumstances
398 for required_field in ('os', 'template'):
399 if required_field not in spec:
400 raise errors.OpPrereqError('Required field "%s" is missing.' %
401 required_field, errors.ECODE_INVAL)
402 # Validate special fields
403 if spec['primary_node'] is not None:
404 if (spec['template'] in constants.DTS_NET_MIRROR and
405 spec['secondary_node'] is None):
406 raise errors.OpPrereqError('Template requires secondary node, but'
407 ' there was no secondary provided.',
409 elif spec['iallocator'] is None:
410 raise errors.OpPrereqError('You have to provide at least a primary_node'
411 ' or an iallocator.',
414 if (spec['hvparams'] and
415 not isinstance(spec['hvparams'], dict)):
416 raise errors.OpPrereqError('Hypervisor parameters must be a dict.',
419 json_filename = args[0]
421 instance_data = simplejson.loads(utils.ReadFile(json_filename))
422 except Exception, err: # pylint: disable-msg=W0703
423 ToStderr("Can't parse the instance definition file: %s" % str(err))
426 jex = JobExecutor(opts=opts)
428 # Iterate over the instances and do:
429 # * Populate the specs with default value
430 # * Validate the instance specs
431 i_names = utils.NiceSort(instance_data.keys())
433 specs = instance_data[name]
434 specs = _PopulateWithDefaults(specs)
437 hypervisor = specs['hypervisor']
438 hvparams = specs['hvparams']
441 for elem in specs['disk_size']:
443 size = utils.ParseUnit(elem)
444 except (TypeError, ValueError), err:
445 raise errors.OpPrereqError("Invalid disk size '%s' for"
447 (elem, name, err), errors.ECODE_INVAL)
448 disks.append({"size": size})
450 utils.ForceDictType(specs['backend'], constants.BES_PARAMETER_TYPES)
451 utils.ForceDictType(hvparams, constants.HVS_PARAMETER_TYPES)
454 for field in ('ip', 'mac', 'mode', 'link', 'bridge'):
458 tmp_nics[0][field] = specs[field]
460 if specs['nics'] is not None and tmp_nics:
461 raise errors.OpPrereqError("'nics' list incompatible with using"
462 " individual nic fields as well",
464 elif specs['nics'] is not None:
465 tmp_nics = specs['nics']
469 op = opcodes.OpCreateInstance(instance_name=name,
471 disk_template=specs['template'],
472 mode=constants.INSTANCE_CREATE,
474 force_variant=opts.force_variant,
475 pnode=specs['primary_node'],
476 snode=specs['secondary_node'],
478 start=specs['start'],
479 ip_check=specs['ip_check'],
480 name_check=specs['name_check'],
482 iallocator=specs['iallocator'],
483 hypervisor=hypervisor,
485 beparams=specs['backend'],
486 file_storage_dir=specs['file_storage_dir'],
487 file_driver=specs['file_driver'])
489 jex.QueueJob(name, op)
490 # we never want to wait, just show the submitted job IDs
491 jex.WaitOrShow(False)
496 def ReinstallInstance(opts, args):
497 """Reinstall an instance.
499 @param opts: the command line options selected by the user
501 @param args: should contain only one element, the name of the
502 instance to be reinstalled
504 @return: the desired exit code
507 # first, compute the desired name list
508 if opts.multi_mode is None:
509 opts.multi_mode = _SHUTDOWN_INSTANCES
511 inames = _ExpandMultiNames(opts.multi_mode, args)
513 raise errors.OpPrereqError("Selection filter does not match any instances",
516 # second, if requested, ask for an OS
517 if opts.select_os is True:
518 op = opcodes.OpDiagnoseOS(output_fields=["name", "valid", "variants"],
520 result = SubmitOpCode(op, opts=opts)
523 ToStdout("Can't get the OS list")
526 ToStdout("Available OS templates:")
529 for (name, valid, variants) in result:
531 for entry in CalculateOSNames(name, variants):
532 ToStdout("%3s: %s", number, entry)
533 choices.append(("%s" % number, entry, entry))
536 choices.append(('x', 'exit', 'Exit gnt-instance reinstall'))
537 selected = AskUser("Enter OS template number (or x to abort):",
540 if selected == 'exit':
541 ToStderr("User aborted reinstall, exiting")
548 # third, get confirmation: multi-reinstall requires --force-multi
549 # *and* --force, single-reinstall just --force
550 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
552 warn_msg = "Note: this will remove *all* data for the below instances!\n"
553 if not ((opts.force_multi and opts.force) or
554 _ConfirmOperation(inames, "reinstall", extra=warn_msg)):
558 usertext = ("This will reinstall the instance %s and remove"
559 " all data. Continue?") % inames[0]
560 if not AskUser(usertext):
563 jex = JobExecutor(verbose=multi_on, opts=opts)
564 for instance_name in inames:
565 op = opcodes.OpReinstallInstance(instance_name=instance_name,
567 force_variant=opts.force_variant)
568 jex.QueueJob(instance_name, op)
570 jex.WaitOrShow(not opts.submit_only)
574 def RemoveInstance(opts, args):
575 """Remove an instance.
577 @param opts: the command line options selected by the user
579 @param args: should contain only one element, the name of
580 the instance to be removed
582 @return: the desired exit code
585 instance_name = args[0]
590 _EnsureInstancesExist(cl, [instance_name])
592 usertext = ("This will remove the volumes of the instance %s"
593 " (including mirrors), thus removing all the data"
594 " of the instance. Continue?") % instance_name
595 if not AskUser(usertext):
598 op = opcodes.OpRemoveInstance(instance_name=instance_name,
599 ignore_failures=opts.ignore_failures,
600 shutdown_timeout=opts.shutdown_timeout)
601 SubmitOrSend(op, opts, cl=cl)
605 def RenameInstance(opts, args):
606 """Rename an instance.
608 @param opts: the command line options selected by the user
610 @param args: should contain two elements, the old and the
613 @return: the desired exit code
616 op = opcodes.OpRenameInstance(instance_name=args[0],
618 ignore_ip=not opts.ip_check)
619 SubmitOrSend(op, opts)
623 def ActivateDisks(opts, args):
624 """Activate an instance's disks.
626 This serves two purposes:
627 - it allows (as long as the instance is not running)
628 mounting the disks and modifying them from the node
629 - it repairs inactive secondary drbds
631 @param opts: the command line options selected by the user
633 @param args: should contain only one element, the instance name
635 @return: the desired exit code
638 instance_name = args[0]
639 op = opcodes.OpActivateInstanceDisks(instance_name=instance_name,
640 ignore_size=opts.ignore_size)
641 disks_info = SubmitOrSend(op, opts)
642 for host, iname, nname in disks_info:
643 ToStdout("%s:%s:%s", host, iname, nname)
647 def DeactivateDisks(opts, args):
648 """Deactivate an instance's disks.
650 This function takes the instance name, looks for its primary node
651 and the tries to shutdown its block devices on that node.
653 @param opts: the command line options selected by the user
655 @param args: should contain only one element, the instance name
657 @return: the desired exit code
660 instance_name = args[0]
661 op = opcodes.OpDeactivateInstanceDisks(instance_name=instance_name)
662 SubmitOrSend(op, opts)
666 def RecreateDisks(opts, args):
667 """Recreate an instance's disks.
669 @param opts: the command line options selected by the user
671 @param args: should contain only one element, the instance name
673 @return: the desired exit code
676 instance_name = args[0]
679 opts.disks = [int(v) for v in opts.disks.split(",")]
680 except (ValueError, TypeError), err:
681 ToStderr("Invalid disks value: %s" % str(err))
686 op = opcodes.OpRecreateInstanceDisks(instance_name=instance_name,
688 SubmitOrSend(op, opts)
692 def GrowDisk(opts, args):
693 """Grow an instance's disks.
695 @param opts: the command line options selected by the user
697 @param args: should contain two elements, the instance name
698 whose disks we grow and the disk name, e.g. I{sda}
700 @return: the desired exit code
707 except (TypeError, ValueError), err:
708 raise errors.OpPrereqError("Invalid disk index: %s" % str(err),
710 amount = utils.ParseUnit(args[2])
711 op = opcodes.OpGrowDisk(instance_name=instance, disk=disk, amount=amount,
712 wait_for_sync=opts.wait_for_sync)
713 SubmitOrSend(op, opts)
717 def _StartupInstance(name, opts):
718 """Startup instances.
720 This returns the opcode to start an instance, and its decorator will
721 wrap this into a loop starting all desired instances.
723 @param name: the name of the instance to act on
724 @param opts: the command line options selected by the user
725 @return: the opcode needed for the operation
728 op = opcodes.OpStartupInstance(instance_name=name,
730 # do not add these parameters to the opcode unless they're defined
732 op.hvparams = opts.hvparams
734 op.beparams = opts.beparams
738 def _RebootInstance(name, opts):
739 """Reboot instance(s).
741 This returns the opcode to reboot an instance, and its decorator
742 will wrap this into a loop rebooting all desired instances.
744 @param name: the name of the instance to act on
745 @param opts: the command line options selected by the user
746 @return: the opcode needed for the operation
749 return opcodes.OpRebootInstance(instance_name=name,
750 reboot_type=opts.reboot_type,
751 ignore_secondaries=opts.ignore_secondaries,
752 shutdown_timeout=opts.shutdown_timeout)
755 def _ShutdownInstance(name, opts):
756 """Shutdown an instance.
758 This returns the opcode to shutdown an instance, and its decorator
759 will wrap this into a loop shutting down all desired instances.
761 @param name: the name of the instance to act on
762 @param opts: the command line options selected by the user
763 @return: the opcode needed for the operation
766 return opcodes.OpShutdownInstance(instance_name=name,
767 timeout=opts.timeout)
770 def ReplaceDisks(opts, args):
771 """Replace the disks of an instance
773 @param opts: the command line options selected by the user
775 @param args: should contain only one element, the instance name
777 @return: the desired exit code
780 new_2ndary = opts.dst_node
781 iallocator = opts.iallocator
782 if opts.disks is None:
786 disks = [int(i) for i in opts.disks.split(",")]
787 except (TypeError, ValueError), err:
788 raise errors.OpPrereqError("Invalid disk index passed: %s" % str(err),
790 cnt = [opts.on_primary, opts.on_secondary, opts.auto,
791 new_2ndary is not None, iallocator is not None].count(True)
793 raise errors.OpPrereqError("One and only one of the -p, -s, -a, -n and -i"
794 " options must be passed", errors.ECODE_INVAL)
795 elif opts.on_primary:
796 mode = constants.REPLACE_DISK_PRI
797 elif opts.on_secondary:
798 mode = constants.REPLACE_DISK_SEC
800 mode = constants.REPLACE_DISK_AUTO
802 raise errors.OpPrereqError("Cannot specify disks when using automatic"
803 " mode", errors.ECODE_INVAL)
804 elif new_2ndary is not None or iallocator is not None:
806 mode = constants.REPLACE_DISK_CHG
808 op = opcodes.OpReplaceDisks(instance_name=args[0], disks=disks,
809 remote_node=new_2ndary, mode=mode,
810 iallocator=iallocator,
811 early_release=opts.early_release)
812 SubmitOrSend(op, opts)
816 def FailoverInstance(opts, args):
817 """Failover an instance.
819 The failover is done by shutting it down on its present node and
820 starting it on the secondary.
822 @param opts: the command line options selected by the user
824 @param args: should contain only one element, the instance name
826 @return: the desired exit code
830 instance_name = args[0]
834 _EnsureInstancesExist(cl, [instance_name])
836 usertext = ("Failover will happen to image %s."
837 " This requires a shutdown of the instance. Continue?" %
839 if not AskUser(usertext):
842 op = opcodes.OpFailoverInstance(instance_name=instance_name,
843 ignore_consistency=opts.ignore_consistency,
844 shutdown_timeout=opts.shutdown_timeout)
845 SubmitOrSend(op, opts, cl=cl)
849 def MigrateInstance(opts, args):
850 """Migrate an instance.
852 The migrate is done without shutdown.
854 @param opts: the command line options selected by the user
856 @param args: should contain only one element, the instance name
858 @return: the desired exit code
862 instance_name = args[0]
866 _EnsureInstancesExist(cl, [instance_name])
869 usertext = ("Instance %s will be recovered from a failed migration."
870 " Note that the migration procedure (including cleanup)" %
873 usertext = ("Instance %s will be migrated. Note that migration" %
875 usertext += (" is **experimental** in this version."
876 " This might impact the instance if anything goes wrong."
878 if not AskUser(usertext):
881 op = opcodes.OpMigrateInstance(instance_name=instance_name, live=opts.live,
882 cleanup=opts.cleanup)
883 SubmitOpCode(op, cl=cl, opts=opts)
887 def MoveInstance(opts, args):
890 @param opts: the command line options selected by the user
892 @param args: should contain only one element, the instance name
894 @return: the desired exit code
898 instance_name = args[0]
902 usertext = ("Instance %s will be moved."
903 " This requires a shutdown of the instance. Continue?" %
905 if not AskUser(usertext):
908 op = opcodes.OpMoveInstance(instance_name=instance_name,
909 target_node=opts.node,
910 shutdown_timeout=opts.shutdown_timeout)
911 SubmitOrSend(op, opts, cl=cl)
915 def ConnectToInstanceConsole(opts, args):
916 """Connect to the console of an instance.
918 @param opts: the command line options selected by the user
920 @param args: should contain only one element, the instance name
922 @return: the desired exit code
925 instance_name = args[0]
927 op = opcodes.OpConnectConsole(instance_name=instance_name)
928 cmd = SubmitOpCode(op, opts=opts)
930 if opts.show_command:
931 ToStdout("%s", utils.ShellQuoteArgs(cmd))
934 os.execvp(cmd[0], cmd)
936 ToStderr("Can't run console command %s with arguments:\n'%s'",
937 cmd[0], " ".join(cmd))
938 os._exit(1) # pylint: disable-msg=W0212
941 def _FormatLogicalID(dev_type, logical_id):
942 """Formats the logical_id of a disk.
945 if dev_type == constants.LD_DRBD8:
946 node_a, node_b, port, minor_a, minor_b, key = logical_id
948 ("nodeA", "%s, minor=%s" % (node_a, minor_a)),
949 ("nodeB", "%s, minor=%s" % (node_b, minor_b)),
953 elif dev_type == constants.LD_LV:
954 vg_name, lv_name = logical_id
955 data = ["%s/%s" % (vg_name, lv_name)]
957 data = [str(logical_id)]
962 def _FormatBlockDevInfo(idx, top_level, dev, static):
963 """Show block device information.
965 This is only used by L{ShowInstanceConfig}, but it's too big to be
966 left for an inline definition.
969 @param idx: the index of the current disk
970 @type top_level: boolean
971 @param top_level: if this a top-level disk?
973 @param dev: dictionary with disk information
974 @type static: boolean
975 @param static: wheter the device information doesn't contain
976 runtime information but only static data
977 @return: a list of either strings, tuples or lists
978 (which should be formatted at a higher indent level)
981 def helper(dtype, status):
982 """Format one line for physical device status.
985 @param dtype: a constant from the L{constants.LDS_BLOCK} set
987 @param status: a tuple as returned from L{backend.FindBlockDevice}
988 @return: the string representing the status
994 (path, major, minor, syncp, estt, degr, ldisk_status) = status
998 major_string = str(major)
1001 minor_string = "N/A"
1003 minor_string = str(minor)
1005 txt += ("%s (%s:%s)" % (path, major_string, minor_string))
1006 if dtype in (constants.LD_DRBD8, ):
1007 if syncp is not None:
1008 sync_text = "*RECOVERING* %5.2f%%," % syncp
1010 sync_text += " ETA %ds" % estt
1012 sync_text += " ETA unknown"
1014 sync_text = "in sync"
1016 degr_text = "*DEGRADED*"
1019 if ldisk_status == constants.LDS_FAULTY:
1020 ldisk_text = " *MISSING DISK*"
1021 elif ldisk_status == constants.LDS_UNKNOWN:
1022 ldisk_text = " *UNCERTAIN STATE*"
1025 txt += (" %s, status %s%s" % (sync_text, degr_text, ldisk_text))
1026 elif dtype == constants.LD_LV:
1027 if ldisk_status == constants.LDS_FAULTY:
1028 ldisk_text = " *FAILED* (failed drive?)"
1036 if dev["iv_name"] is not None:
1037 txt = dev["iv_name"]
1039 txt = "disk %d" % idx
1041 txt = "child %d" % idx
1042 if isinstance(dev["size"], int):
1043 nice_size = utils.FormatUnit(dev["size"], "h")
1045 nice_size = dev["size"]
1046 d1 = ["- %s: %s, size %s" % (txt, dev["dev_type"], nice_size)]
1049 data.append(("access mode", dev["mode"]))
1050 if dev["logical_id"] is not None:
1052 l_id = _FormatLogicalID(dev["dev_type"], dev["logical_id"])
1054 l_id = [str(dev["logical_id"])]
1056 data.append(("logical_id", l_id[0]))
1059 elif dev["physical_id"] is not None:
1060 data.append("physical_id:")
1061 data.append([dev["physical_id"]])
1063 data.append(("on primary", helper(dev["dev_type"], dev["pstatus"])))
1064 if dev["sstatus"] and not static:
1065 data.append(("on secondary", helper(dev["dev_type"], dev["sstatus"])))
1068 data.append("child devices:")
1069 for c_idx, child in enumerate(dev["children"]):
1070 data.append(_FormatBlockDevInfo(c_idx, False, child, static))
1075 def _FormatList(buf, data, indent_level):
1076 """Formats a list of data at a given indent level.
1078 If the element of the list is:
1079 - a string, it is simply formatted as is
1080 - a tuple, it will be split into key, value and the all the
1081 values in a list will be aligned all at the same start column
1082 - a list, will be recursively formatted
1085 @param buf: the buffer into which we write the output
1086 @param data: the list to format
1087 @type indent_level: int
1088 @param indent_level: the indent level to format at
1091 max_tlen = max([len(elem[0]) for elem in data
1092 if isinstance(elem, tuple)] or [0])
1094 if isinstance(elem, basestring):
1095 buf.write("%*s%s\n" % (2*indent_level, "", elem))
1096 elif isinstance(elem, tuple):
1098 spacer = "%*s" % (max_tlen - len(key), "")
1099 buf.write("%*s%s:%s %s\n" % (2*indent_level, "", key, spacer, value))
1100 elif isinstance(elem, list):
1101 _FormatList(buf, elem, indent_level+1)
1104 def ShowInstanceConfig(opts, args):
1105 """Compute instance run-time status.
1107 @param opts: the command line options selected by the user
1109 @param args: either an empty list, and then we query all
1110 instances, or should contain a list of instance names
1112 @return: the desired exit code
1115 if not args and not opts.show_all:
1116 ToStderr("No instance selected."
1117 " Please pass in --all if you want to query all instances.\n"
1118 "Note that this can take a long time on a big cluster.")
1120 elif args and opts.show_all:
1121 ToStderr("Cannot use --all if you specify instance names.")
1125 op = opcodes.OpQueryInstanceData(instances=args, static=opts.static)
1126 result = SubmitOpCode(op, opts=opts)
1128 ToStdout("No instances.")
1133 for instance_name in result:
1134 instance = result[instance_name]
1135 buf.write("Instance name: %s\n" % instance["name"])
1136 buf.write("UUID: %s\n" % instance["uuid"])
1137 buf.write("Serial number: %s\n" % instance["serial_no"])
1138 buf.write("Creation time: %s\n" % utils.FormatTime(instance["ctime"]))
1139 buf.write("Modification time: %s\n" % utils.FormatTime(instance["mtime"]))
1140 buf.write("State: configured to be %s" % instance["config_state"])
1142 buf.write(", actual state is %s" % instance["run_state"])
1144 ##buf.write("Considered for memory checks in cluster verify: %s\n" %
1145 ## instance["auto_balance"])
1146 buf.write(" Nodes:\n")
1147 buf.write(" - primary: %s\n" % instance["pnode"])
1148 buf.write(" - secondaries: %s\n" % utils.CommaJoin(instance["snodes"]))
1149 buf.write(" Operating system: %s\n" % instance["os"])
1150 if instance.has_key("network_port"):
1151 buf.write(" Allocated network port: %s\n" % instance["network_port"])
1152 buf.write(" Hypervisor: %s\n" % instance["hypervisor"])
1154 # custom VNC console information
1155 vnc_bind_address = instance["hv_actual"].get(constants.HV_VNC_BIND_ADDRESS,
1157 if vnc_bind_address:
1158 port = instance["network_port"]
1159 display = int(port) - constants.VNC_BASE_PORT
1160 if display > 0 and vnc_bind_address == constants.BIND_ADDRESS_GLOBAL:
1161 vnc_console_port = "%s:%s (display %s)" % (instance["pnode"],
1164 elif display > 0 and utils.IsValidIP(vnc_bind_address):
1165 vnc_console_port = ("%s:%s (node %s) (display %s)" %
1166 (vnc_bind_address, port,
1167 instance["pnode"], display))
1169 # vnc bind address is a file
1170 vnc_console_port = "%s:%s" % (instance["pnode"],
1172 buf.write(" - console connection: vnc to %s\n" % vnc_console_port)
1174 for key in instance["hv_actual"]:
1175 if key in instance["hv_instance"]:
1176 val = instance["hv_instance"][key]
1178 val = "default (%s)" % instance["hv_actual"][key]
1179 buf.write(" - %s: %s\n" % (key, val))
1180 buf.write(" Hardware:\n")
1181 buf.write(" - VCPUs: %d\n" %
1182 instance["be_actual"][constants.BE_VCPUS])
1183 buf.write(" - memory: %dMiB\n" %
1184 instance["be_actual"][constants.BE_MEMORY])
1185 buf.write(" - NICs:\n")
1186 for idx, (ip, mac, mode, link) in enumerate(instance["nics"]):
1187 buf.write(" - nic/%d: MAC: %s, IP: %s, mode: %s, link: %s\n" %
1188 (idx, mac, ip, mode, link))
1189 buf.write(" Disks:\n")
1191 for idx, device in enumerate(instance["disks"]):
1192 _FormatList(buf, _FormatBlockDevInfo(idx, True, device, opts.static), 2)
1194 ToStdout(buf.getvalue().rstrip('\n'))
1198 def SetInstanceParams(opts, args):
1199 """Modifies an instance.
1201 All parameters take effect only at the next restart of the instance.
1203 @param opts: the command line options selected by the user
1205 @param args: should contain only one element, the instance name
1207 @return: the desired exit code
1210 if not (opts.nics or opts.disks or opts.disk_template or
1211 opts.hvparams or opts.beparams or opts.os):
1212 ToStderr("Please give at least one of the parameters.")
1215 for param in opts.beparams:
1216 if isinstance(opts.beparams[param], basestring):
1217 if opts.beparams[param].lower() == "default":
1218 opts.beparams[param] = constants.VALUE_DEFAULT
1220 utils.ForceDictType(opts.beparams, constants.BES_PARAMETER_TYPES,
1221 allowed_values=[constants.VALUE_DEFAULT])
1223 for param in opts.hvparams:
1224 if isinstance(opts.hvparams[param], basestring):
1225 if opts.hvparams[param].lower() == "default":
1226 opts.hvparams[param] = constants.VALUE_DEFAULT
1228 utils.ForceDictType(opts.hvparams, constants.HVS_PARAMETER_TYPES,
1229 allowed_values=[constants.VALUE_DEFAULT])
1231 for idx, (nic_op, nic_dict) in enumerate(opts.nics):
1233 nic_op = int(nic_op)
1234 opts.nics[idx] = (nic_op, nic_dict)
1235 except (TypeError, ValueError):
1238 for idx, (disk_op, disk_dict) in enumerate(opts.disks):
1240 disk_op = int(disk_op)
1241 opts.disks[idx] = (disk_op, disk_dict)
1242 except (TypeError, ValueError):
1244 if disk_op == constants.DDM_ADD:
1245 if 'size' not in disk_dict:
1246 raise errors.OpPrereqError("Missing required parameter 'size'",
1248 disk_dict['size'] = utils.ParseUnit(disk_dict['size'])
1250 if (opts.disk_template and
1251 opts.disk_template in constants.DTS_NET_MIRROR and
1253 ToStderr("Changing the disk template to a mirrored one requires"
1254 " specifying a secondary node")
1257 op = opcodes.OpSetInstanceParams(instance_name=args[0],
1260 disk_template=opts.disk_template,
1261 remote_node=opts.node,
1262 hvparams=opts.hvparams,
1263 beparams=opts.beparams,
1265 force_variant=opts.force_variant,
1268 # even if here we process the result, we allow submit only
1269 result = SubmitOrSend(op, opts)
1272 ToStdout("Modified instance %s", args[0])
1273 for param, data in result:
1274 ToStdout(" - %-5s -> %s", param, data)
1275 ToStdout("Please don't forget that most parameters take effect"
1276 " only at the next start of the instance.")
1280 # multi-instance selection options
1281 m_force_multi = cli_option("--force-multiple", dest="force_multi",
1282 help="Do not ask for confirmation when more than"
1283 " one instance is affected",
1284 action="store_true", default=False)
1286 m_pri_node_opt = cli_option("--primary", dest="multi_mode",
1287 help="Filter by nodes (primary only)",
1288 const=_SHUTDOWN_NODES_PRI, action="store_const")
1290 m_sec_node_opt = cli_option("--secondary", dest="multi_mode",
1291 help="Filter by nodes (secondary only)",
1292 const=_SHUTDOWN_NODES_SEC, action="store_const")
1294 m_node_opt = cli_option("--node", dest="multi_mode",
1295 help="Filter by nodes (primary and secondary)",
1296 const=_SHUTDOWN_NODES_BOTH, action="store_const")
1298 m_clust_opt = cli_option("--all", dest="multi_mode",
1299 help="Select all instances in the cluster",
1300 const=_SHUTDOWN_CLUSTER, action="store_const")
1302 m_inst_opt = cli_option("--instance", dest="multi_mode",
1303 help="Filter by instance name [default]",
1304 const=_SHUTDOWN_INSTANCES, action="store_const")
1306 m_node_tags_opt = cli_option("--node-tags", dest="multi_mode",
1307 help="Filter by node tag",
1308 const=_SHUTDOWN_NODES_BOTH_BY_TAGS,
1309 action="store_const")
1311 m_pri_node_tags_opt = cli_option("--pri-node-tags", dest="multi_mode",
1312 help="Filter by primary node tag",
1313 const=_SHUTDOWN_NODES_PRI_BY_TAGS,
1314 action="store_const")
1316 m_sec_node_tags_opt = cli_option("--sec-node-tags", dest="multi_mode",
1317 help="Filter by secondary node tag",
1318 const=_SHUTDOWN_NODES_SEC_BY_TAGS,
1319 action="store_const")
1321 m_inst_tags_opt = cli_option("--tags", dest="multi_mode",
1322 help="Filter by instance tag",
1323 const=_SHUTDOWN_INSTANCES_BY_TAGS,
1324 action="store_const")
1326 # this is defined separately due to readability only
1332 FILESTORE_DRIVER_OPT,
1351 AddInstance, [ArgHost(min=1, max=1)], add_opts,
1352 "[...] -t disk-type -n node[:secondary-node] -o os-type <name>",
1353 "Creates and adds a new instance to the cluster"),
1355 BatchCreate, [ArgFile(min=1, max=1)], [],
1357 "Create a bunch of instances based on specs in the file."),
1359 ConnectToInstanceConsole, ARGS_ONE_INSTANCE,
1361 "[--show-cmd] <instance>", "Opens a console on the specified instance"),
1363 FailoverInstance, ARGS_ONE_INSTANCE,
1364 [FORCE_OPT, IGNORE_CONSIST_OPT, SUBMIT_OPT, SHUTDOWN_TIMEOUT_OPT],
1365 "[-f] <instance>", "Stops the instance and starts it on the backup node,"
1366 " using the remote mirror (only for instances of type drbd)"),
1368 MigrateInstance, ARGS_ONE_INSTANCE,
1369 [FORCE_OPT, NONLIVE_OPT, CLEANUP_OPT],
1370 "[-f] <instance>", "Migrate instance to its secondary node"
1371 " (only for instances of type drbd)"),
1373 MoveInstance, ARGS_ONE_INSTANCE,
1374 [FORCE_OPT, SUBMIT_OPT, SINGLE_NODE_OPT, SHUTDOWN_TIMEOUT_OPT],
1375 "[-f] <instance>", "Move instance to an arbitrary node"
1376 " (only for instances of type file and lv)"),
1378 ShowInstanceConfig, ARGS_MANY_INSTANCES,
1379 [STATIC_OPT, ALL_OPT],
1380 "[-s] {--all | <instance>...}",
1381 "Show information on the specified instance(s)"),
1383 ListInstances, ARGS_MANY_INSTANCES,
1384 [NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, SYNC_OPT],
1386 "Lists the instances and their status. The available fields are"
1387 " (see the man page for details): status, oper_state, oper_ram,"
1388 " name, os, pnode, snodes, admin_state, admin_ram, disk_template,"
1389 " ip, mac, nic_mode, nic_link, sda_size, sdb_size, vcpus, serial_no,"
1390 " nic.count, nic.mac/N, nic.ip/N, nic.mode/N, nic.link/N,"
1391 " nic.macs, nic.ips, nic.modes, nic.links,"
1392 " disk.count, disk.size/N, disk.sizes,"
1393 " hv/NAME, be/memory, be/vcpus, be/auto_balance,"
1395 " The default field"
1396 " list is (in order): %s." % utils.CommaJoin(_LIST_DEF_FIELDS),
1399 ReinstallInstance, [ArgInstance()],
1400 [FORCE_OPT, OS_OPT, FORCE_VARIANT_OPT, m_force_multi, m_node_opt,
1401 m_pri_node_opt, m_sec_node_opt, m_clust_opt, m_inst_opt, m_node_tags_opt,
1402 m_pri_node_tags_opt, m_sec_node_tags_opt, m_inst_tags_opt, SELECT_OS_OPT,
1404 "[-f] <instance>", "Reinstall a stopped instance"),
1406 RemoveInstance, ARGS_ONE_INSTANCE,
1407 [FORCE_OPT, SHUTDOWN_TIMEOUT_OPT, IGNORE_FAILURES_OPT, SUBMIT_OPT],
1408 "[-f] <instance>", "Shuts down the instance and removes it"),
1411 [ArgInstance(min=1, max=1), ArgHost(min=1, max=1)],
1412 [NOIPCHECK_OPT, SUBMIT_OPT],
1413 "<instance> <new_name>", "Rename the instance"),
1415 ReplaceDisks, ARGS_ONE_INSTANCE,
1416 [AUTO_REPLACE_OPT, DISKIDX_OPT, IALLOCATOR_OPT, EARLY_RELEASE_OPT,
1417 NEW_SECONDARY_OPT, ON_PRIMARY_OPT, ON_SECONDARY_OPT, SUBMIT_OPT],
1418 "[-s|-p|-n NODE|-I NAME] <instance>",
1419 "Replaces all disks for the instance"),
1421 SetInstanceParams, ARGS_ONE_INSTANCE,
1422 [BACKEND_OPT, DISK_OPT, FORCE_OPT, HVOPTS_OPT, NET_OPT, SUBMIT_OPT,
1423 DISK_TEMPLATE_OPT, SINGLE_NODE_OPT, OS_OPT, FORCE_VARIANT_OPT],
1424 "<instance>", "Alters the parameters of an instance"),
1426 GenericManyOps("shutdown", _ShutdownInstance), [ArgInstance()],
1427 [m_node_opt, m_pri_node_opt, m_sec_node_opt, m_clust_opt,
1428 m_node_tags_opt, m_pri_node_tags_opt, m_sec_node_tags_opt,
1429 m_inst_tags_opt, m_inst_opt, m_force_multi, TIMEOUT_OPT, SUBMIT_OPT],
1430 "<instance>", "Stops an instance"),
1432 GenericManyOps("startup", _StartupInstance), [ArgInstance()],
1433 [FORCE_OPT, m_force_multi, m_node_opt, m_pri_node_opt, m_sec_node_opt,
1434 m_node_tags_opt, m_pri_node_tags_opt, m_sec_node_tags_opt,
1435 m_inst_tags_opt, m_clust_opt, m_inst_opt, SUBMIT_OPT, HVOPTS_OPT,
1437 "<instance>", "Starts an instance"),
1439 GenericManyOps("reboot", _RebootInstance), [ArgInstance()],
1440 [m_force_multi, REBOOT_TYPE_OPT, IGNORE_SECONDARIES_OPT, m_node_opt,
1441 m_pri_node_opt, m_sec_node_opt, m_clust_opt, m_inst_opt, SUBMIT_OPT,
1442 m_node_tags_opt, m_pri_node_tags_opt, m_sec_node_tags_opt,
1443 m_inst_tags_opt, SHUTDOWN_TIMEOUT_OPT],
1444 "<instance>", "Reboots an instance"),
1446 ActivateDisks, ARGS_ONE_INSTANCE, [SUBMIT_OPT, IGNORE_SIZE_OPT],
1447 "<instance>", "Activate an instance's disks"),
1448 'deactivate-disks': (
1449 DeactivateDisks, ARGS_ONE_INSTANCE, [SUBMIT_OPT],
1450 "<instance>", "Deactivate an instance's disks"),
1452 RecreateDisks, ARGS_ONE_INSTANCE, [SUBMIT_OPT, DISKIDX_OPT],
1453 "<instance>", "Recreate an instance's disks"),
1456 [ArgInstance(min=1, max=1), ArgUnknown(min=1, max=1),
1457 ArgUnknown(min=1, max=1)],
1458 [SUBMIT_OPT, NWSYNC_OPT],
1459 "<instance> <disk> <size>", "Grow an instance's disk"),
1461 ListTags, ARGS_ONE_INSTANCE, [],
1462 "<instance_name>", "List the tags of the given instance"),
1464 AddTags, [ArgInstance(min=1, max=1), ArgUnknown()],
1466 "<instance_name> tag...", "Add tags to the given instance"),
1468 RemoveTags, [ArgInstance(min=1, max=1), ArgUnknown()],
1470 "<instance_name> tag...", "Remove tags from given instance"),
1473 #: dictionary with aliases for commands
1475 'activate_block_devs': 'activate-disks',
1476 'replace_disks': 'replace-disks',
1482 if __name__ == '__main__':
1483 sys.exit(GenericMain(commands, aliases=aliases,
1484 override={"tag_type": constants.TAG_INSTANCE}))