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
22 # pylint: disable-msg=W0401,W0614
23 # W0401: Wildcard import ganeti.cli
24 # W0614: Unused import %s from wildcard import (since we need cli)
30 from optparse import make_option
31 from cStringIO import StringIO
33 from ganeti.cli import *
34 from ganeti import cli
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_INSTANCES = "instances"
50 #: default list of options for L{ListInstances}
52 "name", "hypervisor", "os", "pnode", "status", "oper_ram",
56 def _ExpandMultiNames(mode, names, client=None):
57 """Expand the given names using the passed mode.
59 For _SHUTDOWN_CLUSTER, all instances will be returned. For
60 _SHUTDOWN_NODES_PRI/SEC, all instances having those nodes as
61 primary/secondary will be returned. For _SHUTDOWN_NODES_BOTH, all
62 instances having those nodes as either primary or secondary will be
63 returned. For _SHUTDOWN_INSTANCES, the given instances will be
66 @param mode: one of L{_SHUTDOWN_CLUSTER}, L{_SHUTDOWN_NODES_BOTH},
67 L{_SHUTDOWN_NODES_PRI}, L{_SHUTDOWN_NODES_SEC} or
68 L{_SHUTDOWN_INSTANCES}
69 @param names: a list of names; for cluster, it must be empty,
70 and for node and instance it must be a list of valid item
71 names (short names are valid as usual, e.g. node1 instead of
74 @return: the list of names after the expansion
75 @raise errors.ProgrammerError: for unknown selection type
76 @raise errors.OpPrereqError: for invalid input parameters
81 if mode == _SHUTDOWN_CLUSTER:
83 raise errors.OpPrereqError("Cluster filter mode takes no arguments")
84 idata = client.QueryInstances([], ["name"], False)
85 inames = [row[0] for row in idata]
87 elif mode in (_SHUTDOWN_NODES_BOTH,
91 raise errors.OpPrereqError("No node names passed")
92 ndata = client.QueryNodes(names, ["name", "pinst_list", "sinst_list"],
94 ipri = [row[1] for row in ndata]
95 pri_names = list(itertools.chain(*ipri))
96 isec = [row[2] for row in ndata]
97 sec_names = list(itertools.chain(*isec))
98 if mode == _SHUTDOWN_NODES_BOTH:
99 inames = pri_names + sec_names
100 elif mode == _SHUTDOWN_NODES_PRI:
102 elif mode == _SHUTDOWN_NODES_SEC:
105 raise errors.ProgrammerError("Unhandled shutdown type")
107 elif mode == _SHUTDOWN_INSTANCES:
109 raise errors.OpPrereqError("No instance names passed")
110 idata = client.QueryInstances(names, ["name"], False)
111 inames = [row[0] for row in idata]
114 raise errors.OpPrereqError("Unknown mode '%s'" % mode)
119 def _ConfirmOperation(inames, text, extra=""):
120 """Ask the user to confirm an operation on a list of instances.
122 This function is used to request confirmation for doing an operation
123 on a given list of instances.
126 @param inames: the list of names that we display when
127 we ask for confirmation
129 @param text: the operation that the user should confirm
130 (e.g. I{shutdown} or I{startup})
132 @return: True or False depending on user's confirmation.
136 msg = ("The %s will operate on %d instances.\n%s"
137 "Do you want to continue?" % (text, count, extra))
138 affected = ("\nAffected instances:\n" +
139 "\n".join([" %s" % name for name in inames]))
141 choices = [('y', True, 'Yes, execute the %s' % text),
142 ('n', False, 'No, abort the %s' % text)]
145 choices.insert(1, ('v', 'v', 'View the list of affected instances'))
150 choice = AskUser(ask, choices)
153 choice = AskUser(msg + affected, choices)
157 def _EnsureInstancesExist(client, names):
158 """Check for and ensure the given instance names exist.
160 This function will raise an OpPrereqError in case they don't
161 exist. Otherwise it will exit cleanly.
163 @type client: L{ganeti.luxi.Client}
164 @param client: the client to use for the query
166 @param names: the list of instance names to query
167 @raise errors.OpPrereqError: in case any instance is missing
170 # TODO: change LUQueryInstances to that it actually returns None
171 # instead of raising an exception, or devise a better mechanism
172 result = client.QueryInstances(names, ["name"], False)
173 for orig_name, row in zip(names, result):
175 raise errors.OpPrereqError("Instance '%s' does not exist" % orig_name)
178 def ListInstances(opts, args):
179 """List instances and their properties.
181 @param opts: the command line options selected by the user
183 @param args: should be an empty list
185 @return: the desired exit code
188 if opts.output is None:
189 selected_fields = _LIST_DEF_FIELDS
190 elif opts.output.startswith("+"):
191 selected_fields = _LIST_DEF_FIELDS + opts.output[1:].split(",")
193 selected_fields = opts.output.split(",")
195 output = GetClient().QueryInstances(args, selected_fields, opts.do_locking)
197 if not opts.no_headers:
199 "name": "Instance", "os": "OS", "pnode": "Primary_node",
200 "snodes": "Secondary_Nodes", "admin_state": "Autostart",
201 "oper_state": "Running",
202 "oper_ram": "Memory", "disk_template": "Disk_template",
203 "ip": "IP_address", "mac": "MAC_address",
204 "nic_mode": "NIC_Mode", "nic_link": "NIC_Link",
206 "sda_size": "Disk/0", "sdb_size": "Disk/1",
207 "disk_usage": "DiskUsage",
208 "status": "Status", "tags": "Tags",
209 "network_port": "Network_port",
210 "hv/kernel_path": "Kernel_path",
211 "hv/initrd_path": "Initrd_path",
212 "hv/boot_order": "HVM_boot_order",
213 "hv/acpi": "HVM_ACPI",
215 "hv/cdrom_image_path": "HVM_CDROM_image_path",
216 "hv/nic_type": "HVM_NIC_type",
217 "hv/disk_type": "HVM_Disk_type",
218 "hv/vnc_bind_address": "VNC_bind_address",
219 "serial_no": "SerialNo", "hypervisor": "Hypervisor",
220 "hvparams": "Hypervisor_parameters",
221 "be/memory": "Configured_memory",
223 "be/auto_balance": "Auto_balance",
224 "disk.count": "Disks", "disk.sizes": "Disk_sizes",
225 "nic.count": "NICs", "nic.ips": "NIC_IPs",
226 "nic.modes": "NIC_modes", "nic.links": "NIC_links",
227 "nic.bridges": "NIC_bridges", "nic.macs": "NIC_MACs",
232 unitfields = ["be/memory", "oper_ram", "sd(a|b)_size", "disk\.size/.*"]
233 numfields = ["be/memory", "oper_ram", "sd(a|b)_size", "be/vcpus",
234 "serial_no", "(disk|nic)\.count", "disk\.size/.*"]
236 list_type_fields = ("tags", "disk.sizes", "nic.macs", "nic.ips",
237 "nic.modes", "nic.links", "nic.bridges")
238 # change raw values to nicer strings
240 for idx, field in enumerate(selected_fields):
242 if field == "snodes":
243 val = ",".join(val) or "-"
244 elif field == "admin_state":
249 elif field == "oper_state":
256 elif field == "oper_ram":
259 elif field == "sda_size" or field == "sdb_size":
262 elif field in list_type_fields:
263 val = ",".join(str(item) for item in val)
268 data = GenerateTable(separator=opts.separator, headers=headers,
269 fields=selected_fields, unitfields=unitfields,
270 numfields=numfields, data=output, units=opts.units)
278 def AddInstance(opts, args):
279 """Add an instance to the cluster.
281 @param opts: the command line options selected by the user
283 @param args: should contain only one element, the new instance name
285 @return: the desired exit code
290 (pnode, snode) = SplitNodeOption(opts.node)
295 hypervisor, hvparams = opts.hypervisor
299 nic_max = max(int(nidx[0])+1 for nidx in opts.nics)
300 except ValueError, err:
301 raise errors.OpPrereqError("Invalid NIC index passed: %s" % str(err))
302 nics = [{}] * nic_max
303 for nidx, ndict in opts.nics:
305 if not isinstance(ndict, dict):
306 msg = "Invalid nic/%d value: expected dict, got %s" % (nidx, ndict)
307 raise errors.OpPrereqError(msg)
313 # default of one nic, all auto
316 if opts.disk_template == constants.DT_DISKLESS:
317 if opts.disks or opts.sd_size is not None:
318 raise errors.OpPrereqError("Diskless instance but disk"
319 " information passed")
322 if not opts.disks and not opts.sd_size:
323 raise errors.OpPrereqError("No disk information specified")
324 if opts.disks and opts.sd_size is not None:
325 raise errors.OpPrereqError("Please use either the '--disk' or"
327 if opts.sd_size is not None:
328 opts.disks = [(0, {"size": opts.sd_size})]
330 disk_max = max(int(didx[0])+1 for didx in opts.disks)
331 except ValueError, err:
332 raise errors.OpPrereqError("Invalid disk index passed: %s" % str(err))
333 disks = [{}] * disk_max
334 for didx, ddict in opts.disks:
336 if not isinstance(ddict, dict):
337 msg = "Invalid disk/%d value: expected dict, got %s" % (didx, ddict)
338 raise errors.OpPrereqError(msg)
339 elif "size" not in ddict:
340 raise errors.OpPrereqError("Missing size for disk %d" % didx)
342 ddict["size"] = utils.ParseUnit(ddict["size"])
343 except ValueError, err:
344 raise errors.OpPrereqError("Invalid disk size for disk %d: %s" %
348 utils.ForceDictType(opts.beparams, constants.BES_PARAMETER_TYPES)
349 utils.ForceDictType(hvparams, constants.HVS_PARAMETER_TYPES)
351 op = opcodes.OpCreateInstance(instance_name=instance,
353 disk_template=opts.disk_template,
355 mode=constants.INSTANCE_CREATE,
356 os_type=opts.os, pnode=pnode,
358 start=opts.start, ip_check=opts.ip_check,
359 wait_for_sync=opts.wait_for_sync,
360 hypervisor=hypervisor,
362 beparams=opts.beparams,
363 iallocator=opts.iallocator,
364 file_storage_dir=opts.file_storage_dir,
365 file_driver=opts.file_driver,
368 SubmitOrSend(op, opts)
372 def BatchCreate(opts, args):
373 """Create instances using a definition file.
375 This function reads a json file with instances defined
379 "disk_size": [20480],
385 "primary_node": "firstnode",
386 "secondary_node": "secondnode",
387 "iallocator": "dumb"}
390 Note that I{primary_node} and I{secondary_node} have precedence over
393 @param opts: the command line options selected by the user
395 @param args: should contain one element, the json filename
397 @return: the desired exit code
400 _DEFAULT_SPECS = {"disk_size": [20 * 1024],
403 "primary_node": None,
404 "secondary_node": None,
410 "file_storage_dir": None,
411 "file_driver": 'loop'}
413 def _PopulateWithDefaults(spec):
414 """Returns a new hash combined with default values."""
415 mydict = _DEFAULT_SPECS.copy()
420 """Validate the instance specs."""
421 # Validate fields required under any circumstances
422 for required_field in ('os', 'template'):
423 if required_field not in spec:
424 raise errors.OpPrereqError('Required field "%s" is missing.' %
426 # Validate special fields
427 if spec['primary_node'] is not None:
428 if (spec['template'] in constants.DTS_NET_MIRROR and
429 spec['secondary_node'] is None):
430 raise errors.OpPrereqError('Template requires secondary node, but'
431 ' there was no secondary provided.')
432 elif spec['iallocator'] is None:
433 raise errors.OpPrereqError('You have to provide at least a primary_node'
434 ' or an iallocator.')
436 if (spec['hvparams'] and
437 not isinstance(spec['hvparams'], dict)):
438 raise errors.OpPrereqError('Hypervisor parameters must be a dict.')
440 json_filename = args[0]
442 fd = open(json_filename, 'r')
443 instance_data = simplejson.load(fd)
445 except Exception, err:
446 ToStderr("Can't parse the instance definition file: %s" % str(err))
451 # Iterate over the instances and do:
452 # * Populate the specs with default value
453 # * Validate the instance specs
454 i_names = utils.NiceSort(instance_data.keys())
456 specs = instance_data[name]
457 specs = _PopulateWithDefaults(specs)
460 hypervisor = specs['hypervisor']
461 hvparams = specs['hvparams']
464 for elem in specs['disk_size']:
466 size = utils.ParseUnit(elem)
467 except ValueError, err:
468 raise errors.OpPrereqError("Invalid disk size '%s' for"
471 disks.append({"size": size})
473 utils.ForceDictType(specs['backend'], constants.BES_PARAMETER_TYPES)
474 utils.ForceDictType(hvparams, constants.HVS_PARAMETER_TYPES)
477 for field in ('ip', 'mac', 'mode', 'link', 'bridge'):
481 tmp_nics[0][field] = specs[field]
483 if specs['nics'] is not None and tmp_nics:
484 raise errors.OpPrereqError("'nics' list incompatible with using"
485 " individual nic fields as well")
486 elif specs['nics'] is not None:
487 tmp_nics = specs['nics']
491 op = opcodes.OpCreateInstance(instance_name=name,
493 disk_template=specs['template'],
494 mode=constants.INSTANCE_CREATE,
496 pnode=specs['primary_node'],
497 snode=specs['secondary_node'],
499 start=specs['start'],
500 ip_check=specs['ip_check'],
502 iallocator=specs['iallocator'],
503 hypervisor=hypervisor,
505 beparams=specs['backend'],
506 file_storage_dir=specs['file_storage_dir'],
507 file_driver=specs['file_driver'])
509 jex.QueueJob(name, op)
510 # we never want to wait, just show the submitted job IDs
511 jex.WaitOrShow(False)
516 def ReinstallInstance(opts, args):
517 """Reinstall an instance.
519 @param opts: the command line options selected by the user
521 @param args: should contain only one element, the name of the
522 instance to be reinstalled
524 @return: the desired exit code
527 # first, compute the desired name list
528 if opts.multi_mode is None:
529 opts.multi_mode = _SHUTDOWN_INSTANCES
531 inames = _ExpandMultiNames(opts.multi_mode, args)
533 raise errors.OpPrereqError("Selection filter does not match any instances")
535 # second, if requested, ask for an OS
536 if opts.select_os is True:
537 op = opcodes.OpDiagnoseOS(output_fields=["name", "valid"], names=[])
538 result = SubmitOpCode(op)
541 ToStdout("Can't get the OS list")
544 ToStdout("Available OS templates:")
548 ToStdout("%3s: %s", number, entry[0])
549 choices.append(("%s" % number, entry[0], entry[0]))
552 choices.append(('x', 'exit', 'Exit gnt-instance reinstall'))
553 selected = AskUser("Enter OS template number (or x to abort):",
556 if selected == 'exit':
557 ToStderr("User aborted reinstall, exiting")
564 # third, get confirmation: multi-reinstall requires --force-multi
565 # *and* --force, single-reinstall just --force
566 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
568 warn_msg = "Note: this will remove *all* data for the below instances!\n"
569 if not ((opts.force_multi and opts.force) or
570 _ConfirmOperation(inames, "reinstall", extra=warn_msg)):
574 usertext = ("This will reinstall the instance %s and remove"
575 " all data. Continue?") % inames[0]
576 if not AskUser(usertext):
579 jex = JobExecutor(verbose=multi_on)
580 for instance_name in inames:
581 op = opcodes.OpReinstallInstance(instance_name=instance_name,
583 jex.QueueJob(instance_name, op)
585 jex.WaitOrShow(not opts.submit_only)
589 def RemoveInstance(opts, args):
590 """Remove an instance.
592 @param opts: the command line options selected by the user
594 @param args: should contain only one element, the name of
595 the instance to be removed
597 @return: the desired exit code
600 instance_name = args[0]
605 _EnsureInstancesExist(cl, [instance_name])
607 usertext = ("This will remove the volumes of the instance %s"
608 " (including mirrors), thus removing all the data"
609 " of the instance. Continue?") % instance_name
610 if not AskUser(usertext):
613 op = opcodes.OpRemoveInstance(instance_name=instance_name,
614 ignore_failures=opts.ignore_failures)
615 SubmitOrSend(op, opts, cl=cl)
619 def RenameInstance(opts, args):
620 """Rename an instance.
622 @param opts: the command line options selected by the user
624 @param args: should contain two elements, the old and the
627 @return: the desired exit code
630 op = opcodes.OpRenameInstance(instance_name=args[0],
632 ignore_ip=opts.ignore_ip)
633 SubmitOrSend(op, opts)
637 def ActivateDisks(opts, args):
638 """Activate an instance's disks.
640 This serves two purposes:
641 - it allows (as long as the instance is not running)
642 mounting the disks and modifying them from the node
643 - it repairs inactive secondary drbds
645 @param opts: the command line options selected by the user
647 @param args: should contain only one element, the instance name
649 @return: the desired exit code
652 instance_name = args[0]
653 op = opcodes.OpActivateInstanceDisks(instance_name=instance_name)
654 disks_info = SubmitOrSend(op, opts)
655 for host, iname, nname in disks_info:
656 ToStdout("%s:%s:%s", host, iname, nname)
660 def DeactivateDisks(opts, args):
661 """Deactivate an instance's disks..
663 This function takes the instance name, looks for its primary node
664 and the tries to shutdown its block devices on that node.
666 @param opts: the command line options selected by the user
668 @param args: should contain only one element, the instance name
670 @return: the desired exit code
673 instance_name = args[0]
674 op = opcodes.OpDeactivateInstanceDisks(instance_name=instance_name)
675 SubmitOrSend(op, opts)
679 def GrowDisk(opts, args):
680 """Grow an instance's disks.
682 @param opts: the command line options selected by the user
684 @param args: should contain two elements, the instance name
685 whose disks we grow and the disk name, e.g. I{sda}
687 @return: the desired exit code
694 except ValueError, err:
695 raise errors.OpPrereqError("Invalid disk index: %s" % str(err))
696 amount = utils.ParseUnit(args[2])
697 op = opcodes.OpGrowDisk(instance_name=instance, disk=disk, amount=amount,
698 wait_for_sync=opts.wait_for_sync)
699 SubmitOrSend(op, opts)
703 def StartupInstance(opts, args):
704 """Startup instances.
706 Depending on the options given, this will start one or more
709 @param opts: the command line options selected by the user
711 @param args: the instance or node names based on which we
712 create the final selection (in conjunction with the
715 @return: the desired exit code
719 if opts.multi_mode is None:
720 opts.multi_mode = _SHUTDOWN_INSTANCES
721 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
723 raise errors.OpPrereqError("Selection filter does not match any instances")
724 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
725 if not (opts.force_multi or not multi_on
726 or _ConfirmOperation(inames, "startup")):
728 jex = cli.JobExecutor(verbose=multi_on, cl=cl)
730 op = opcodes.OpStartupInstance(instance_name=name,
732 # do not add these parameters to the opcode unless they're defined
734 op.hvparams = opts.hvparams
736 op.beparams = opts.beparams
737 jex.QueueJob(name, op)
738 jex.WaitOrShow(not opts.submit_only)
742 def RebootInstance(opts, args):
743 """Reboot instance(s).
745 Depending on the parameters given, this will reboot one or more
748 @param opts: the command line options selected by the user
750 @param args: the instance or node names based on which we
751 create the final selection (in conjunction with the
754 @return: the desired exit code
758 if opts.multi_mode is None:
759 opts.multi_mode = _SHUTDOWN_INSTANCES
760 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
762 raise errors.OpPrereqError("Selection filter does not match any instances")
763 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
764 if not (opts.force_multi or not multi_on
765 or _ConfirmOperation(inames, "reboot")):
767 jex = JobExecutor(verbose=multi_on, cl=cl)
769 op = opcodes.OpRebootInstance(instance_name=name,
770 reboot_type=opts.reboot_type,
771 ignore_secondaries=opts.ignore_secondaries)
772 jex.QueueJob(name, op)
773 jex.WaitOrShow(not opts.submit_only)
777 def ShutdownInstance(opts, args):
778 """Shutdown an instance.
780 @param opts: the command line options selected by the user
782 @param args: the instance or node names based on which we
783 create the final selection (in conjunction with the
786 @return: the desired exit code
790 if opts.multi_mode is None:
791 opts.multi_mode = _SHUTDOWN_INSTANCES
792 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
794 raise errors.OpPrereqError("Selection filter does not match any instances")
795 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
796 if not (opts.force_multi or not multi_on
797 or _ConfirmOperation(inames, "shutdown")):
800 jex = cli.JobExecutor(verbose=multi_on, cl=cl)
802 op = opcodes.OpShutdownInstance(instance_name=name)
803 jex.QueueJob(name, op)
804 jex.WaitOrShow(not opts.submit_only)
808 def ReplaceDisks(opts, args):
809 """Replace the disks of an instance
811 @param opts: the command line options selected by the user
813 @param args: should contain only one element, the instance name
815 @return: the desired exit code
818 instance_name = args[0]
819 new_2ndary = opts.new_secondary
820 iallocator = opts.iallocator
821 if opts.disks is None:
825 disks = [int(i) for i in opts.disks.split(",")]
826 except ValueError, err:
827 raise errors.OpPrereqError("Invalid disk index passed: %s" % str(err))
828 cnt = [opts.on_primary, opts.on_secondary,
829 new_2ndary is not None, iallocator is not None].count(True)
831 raise errors.OpPrereqError("One and only one of the -p, -s, -n and -i"
832 " options must be passed")
833 elif opts.on_primary:
834 mode = constants.REPLACE_DISK_PRI
835 elif opts.on_secondary:
836 mode = constants.REPLACE_DISK_SEC
837 elif new_2ndary is not None or iallocator is not None:
839 mode = constants.REPLACE_DISK_CHG
841 op = opcodes.OpReplaceDisks(instance_name=args[0], disks=disks,
842 remote_node=new_2ndary, mode=mode,
843 iallocator=iallocator)
844 SubmitOrSend(op, opts)
848 def FailoverInstance(opts, args):
849 """Failover an instance.
851 The failover is done by shutting it down on its present node and
852 starting it on the secondary.
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])
868 usertext = ("Failover will happen to image %s."
869 " This requires a shutdown of the instance. Continue?" %
871 if not AskUser(usertext):
874 op = opcodes.OpFailoverInstance(instance_name=instance_name,
875 ignore_consistency=opts.ignore_consistency)
876 SubmitOrSend(op, opts, cl=cl)
880 def MigrateInstance(opts, args):
881 """Migrate an instance.
883 The migrate is done without shutdown.
885 @param opts: the command line options selected by the user
887 @param args: should contain only one element, the instance name
889 @return: the desired exit code
893 instance_name = args[0]
897 _EnsureInstancesExist(cl, [instance_name])
900 usertext = ("Instance %s will be recovered from a failed migration."
901 " Note that the migration procedure (including cleanup)" %
904 usertext = ("Instance %s will be migrated. Note that migration" %
906 usertext += (" is **experimental** in this version."
907 " This might impact the instance if anything goes wrong."
909 if not AskUser(usertext):
912 op = opcodes.OpMigrateInstance(instance_name=instance_name, live=opts.live,
913 cleanup=opts.cleanup)
914 SubmitOpCode(op, cl=cl)
918 def ConnectToInstanceConsole(opts, args):
919 """Connect to the console of an instance.
921 @param opts: the command line options selected by the user
923 @param args: should contain only one element, the instance name
925 @return: the desired exit code
928 instance_name = args[0]
930 op = opcodes.OpConnectConsole(instance_name=instance_name)
931 cmd = SubmitOpCode(op)
933 if opts.show_command:
934 ToStdout("%s", utils.ShellQuoteArgs(cmd))
937 os.execvp(cmd[0], cmd)
939 ToStderr("Can't run console command %s with arguments:\n'%s'",
940 cmd[0], " ".join(cmd))
944 def _FormatLogicalID(dev_type, logical_id):
945 """Formats the logical_id of a disk.
948 if dev_type == constants.LD_DRBD8:
949 node_a, node_b, port, minor_a, minor_b, key = logical_id
951 ("nodeA", "%s, minor=%s" % (node_a, minor_a)),
952 ("nodeB", "%s, minor=%s" % (node_b, minor_b)),
956 elif dev_type == constants.LD_LV:
957 vg_name, lv_name = logical_id
958 data = ["%s/%s" % (vg_name, lv_name)]
960 data = [str(logical_id)]
965 def _FormatBlockDevInfo(idx, top_level, dev, static):
966 """Show block device information.
968 This is only used by L{ShowInstanceConfig}, but it's too big to be
969 left for an inline definition.
972 @param idx: the index of the current disk
973 @type top_level: boolean
974 @param top_level: if this a top-level disk?
976 @param dev: dictionary with disk information
977 @type static: boolean
978 @param static: wheter the device information doesn't contain
979 runtime information but only static data
980 @return: a list of either strings, tuples or lists
981 (which should be formatted at a higher indent level)
984 def helper(dtype, status):
985 """Format one line for physical device status.
988 @param dtype: a constant from the L{constants.LDS_BLOCK} set
990 @param status: a tuple as returned from L{backend.FindBlockDevice}
991 @return: the string representing the status
997 (path, major, minor, syncp, estt, degr, ldisk) = status
1001 major_string = str(major)
1004 minor_string = "N/A"
1006 minor_string = str(minor)
1008 txt += ("%s (%s:%s)" % (path, major_string, minor_string))
1009 if dtype in (constants.LD_DRBD8, ):
1010 if syncp is not None:
1011 sync_text = "*RECOVERING* %5.2f%%," % syncp
1013 sync_text += " ETA %ds" % estt
1015 sync_text += " ETA unknown"
1017 sync_text = "in sync"
1019 degr_text = "*DEGRADED*"
1023 ldisk_text = " *MISSING DISK*"
1026 txt += (" %s, status %s%s" % (sync_text, degr_text, ldisk_text))
1027 elif dtype == constants.LD_LV:
1029 ldisk_text = " *FAILED* (failed drive?)"
1037 if dev["iv_name"] is not None:
1038 txt = dev["iv_name"]
1040 txt = "disk %d" % idx
1042 txt = "child %d" % idx
1043 d1 = ["- %s: %s" % (txt, dev["dev_type"])]
1046 data.append(("access mode", dev["mode"]))
1047 if dev["logical_id"] is not None:
1049 l_id = _FormatLogicalID(dev["dev_type"], dev["logical_id"])
1051 l_id = [str(dev["logical_id"])]
1053 data.append(("logical_id", l_id[0]))
1056 elif dev["physical_id"] is not None:
1057 data.append("physical_id:")
1058 data.append([dev["physical_id"]])
1060 data.append(("on primary", helper(dev["dev_type"], dev["pstatus"])))
1061 if dev["sstatus"] and not static:
1062 data.append(("on secondary", helper(dev["dev_type"], dev["sstatus"])))
1065 data.append("child devices:")
1066 for c_idx, child in enumerate(dev["children"]):
1067 data.append(_FormatBlockDevInfo(c_idx, False, child, static))
1072 def _FormatList(buf, data, indent_level):
1073 """Formats a list of data at a given indent level.
1075 If the element of the list is:
1076 - a string, it is simply formatted as is
1077 - a tuple, it will be split into key, value and the all the
1078 values in a list will be aligned all at the same start column
1079 - a list, will be recursively formatted
1082 @param buf: the buffer into which we write the output
1083 @param data: the list to format
1084 @type indent_level: int
1085 @param indent_level: the indent level to format at
1088 max_tlen = max([len(elem[0]) for elem in data
1089 if isinstance(elem, tuple)] or [0])
1091 if isinstance(elem, basestring):
1092 buf.write("%*s%s\n" % (2*indent_level, "", elem))
1093 elif isinstance(elem, tuple):
1095 spacer = "%*s" % (max_tlen - len(key), "")
1096 buf.write("%*s%s:%s %s\n" % (2*indent_level, "", key, spacer, value))
1097 elif isinstance(elem, list):
1098 _FormatList(buf, elem, indent_level+1)
1100 def ShowInstanceConfig(opts, args):
1101 """Compute instance run-time status.
1103 @param opts: the command line options selected by the user
1105 @param args: either an empty list, and then we query all
1106 instances, or should contain a list of instance names
1108 @return: the desired exit code
1111 if not args and not opts.show_all:
1112 ToStderr("No instance selected."
1113 " Please pass in --all if you want to query all instances.\n"
1114 "Note that this can take a long time on a big cluster.")
1116 elif args and opts.show_all:
1117 ToStderr("Cannot use --all if you specify instance names.")
1121 op = opcodes.OpQueryInstanceData(instances=args, static=opts.static)
1122 result = SubmitOpCode(op)
1124 ToStdout("No instances.")
1129 for instance_name in result:
1130 instance = result[instance_name]
1131 buf.write("Instance name: %s\n" % instance["name"])
1132 buf.write("State: configured to be %s" % instance["config_state"])
1134 buf.write(", actual state is %s" % instance["run_state"])
1136 ##buf.write("Considered for memory checks in cluster verify: %s\n" %
1137 ## instance["auto_balance"])
1138 buf.write(" Nodes:\n")
1139 buf.write(" - primary: %s\n" % instance["pnode"])
1140 buf.write(" - secondaries: %s\n" % ", ".join(instance["snodes"]))
1141 buf.write(" Operating system: %s\n" % instance["os"])
1142 if instance.has_key("network_port"):
1143 buf.write(" Allocated network port: %s\n" % instance["network_port"])
1144 buf.write(" Hypervisor: %s\n" % instance["hypervisor"])
1146 # custom VNC console information
1147 vnc_bind_address = instance["hv_actual"].get(constants.HV_VNC_BIND_ADDRESS,
1149 if vnc_bind_address:
1150 port = instance["network_port"]
1151 display = int(port) - constants.VNC_BASE_PORT
1152 if display > 0 and vnc_bind_address == constants.BIND_ADDRESS_GLOBAL:
1153 vnc_console_port = "%s:%s (display %s)" % (instance["pnode"],
1156 elif display > 0 and utils.IsValidIP(vnc_bind_address):
1157 vnc_console_port = ("%s:%s (node %s) (display %s)" %
1158 (vnc_bind_address, port,
1159 instance["pnode"], display))
1161 # vnc bind address is a file
1162 vnc_console_port = "%s:%s" % (instance["pnode"],
1164 buf.write(" - console connection: vnc to %s\n" % vnc_console_port)
1166 for key in instance["hv_actual"]:
1167 if key in instance["hv_instance"]:
1168 val = instance["hv_instance"][key]
1170 val = "default (%s)" % instance["hv_actual"][key]
1171 buf.write(" - %s: %s\n" % (key, val))
1172 buf.write(" Hardware:\n")
1173 buf.write(" - VCPUs: %d\n" %
1174 instance["be_actual"][constants.BE_VCPUS])
1175 buf.write(" - memory: %dMiB\n" %
1176 instance["be_actual"][constants.BE_MEMORY])
1177 buf.write(" - NICs:\n")
1178 for idx, (mac, ip, mode, link) in enumerate(instance["nics"]):
1179 buf.write(" - nic/%d: MAC: %s, IP: %s, mode: %s, link: %s\n" %
1180 (idx, mac, ip, mode, link))
1181 buf.write(" Disks:\n")
1183 for idx, device in enumerate(instance["disks"]):
1184 _FormatList(buf, _FormatBlockDevInfo(idx, True, device, opts.static), 2)
1186 ToStdout(buf.getvalue().rstrip('\n'))
1190 def SetInstanceParams(opts, args):
1191 """Modifies an instance.
1193 All parameters take effect only at the next restart of the instance.
1195 @param opts: the command line options selected by the user
1197 @param args: should contain only one element, the instance name
1199 @return: the desired exit code
1202 if not (opts.nics or opts.disks or
1203 opts.hypervisor or opts.beparams):
1204 ToStderr("Please give at least one of the parameters.")
1207 for param in opts.beparams:
1208 if isinstance(opts.beparams[param], basestring):
1209 if opts.beparams[param].lower() == "default":
1210 opts.beparams[param] = constants.VALUE_DEFAULT
1212 utils.ForceDictType(opts.beparams, constants.BES_PARAMETER_TYPES,
1213 allowed_values=[constants.VALUE_DEFAULT])
1215 for param in opts.hypervisor:
1216 if isinstance(opts.hypervisor[param], basestring):
1217 if opts.hypervisor[param].lower() == "default":
1218 opts.hypervisor[param] = constants.VALUE_DEFAULT
1220 utils.ForceDictType(opts.hypervisor, constants.HVS_PARAMETER_TYPES,
1221 allowed_values=[constants.VALUE_DEFAULT])
1223 for idx, (nic_op, nic_dict) in enumerate(opts.nics):
1225 nic_op = int(nic_op)
1226 opts.nics[idx] = (nic_op, nic_dict)
1230 for idx, (disk_op, disk_dict) in enumerate(opts.disks):
1232 disk_op = int(disk_op)
1233 opts.disks[idx] = (disk_op, disk_dict)
1236 if disk_op == constants.DDM_ADD:
1237 if 'size' not in disk_dict:
1238 raise errors.OpPrereqError("Missing required parameter 'size'")
1239 disk_dict['size'] = utils.ParseUnit(disk_dict['size'])
1241 op = opcodes.OpSetInstanceParams(instance_name=args[0],
1244 hvparams=opts.hypervisor,
1245 beparams=opts.beparams,
1248 # even if here we process the result, we allow submit only
1249 result = SubmitOrSend(op, opts)
1252 ToStdout("Modified instance %s", args[0])
1253 for param, data in result:
1254 ToStdout(" - %-5s -> %s", param, data)
1255 ToStdout("Please don't forget that these parameters take effect"
1256 " only at the next start of the instance.")
1260 # options used in more than one cmd
1261 node_opt = make_option("-n", "--node", dest="node", help="Target node",
1264 os_opt = cli_option("-o", "--os-type", dest="os", help="What OS to run",
1267 # multi-instance selection options
1268 m_force_multi = make_option("--force-multiple", dest="force_multi",
1269 help="Do not ask for confirmation when more than"
1270 " one instance is affected",
1271 action="store_true", default=False)
1273 m_pri_node_opt = make_option("--primary", dest="multi_mode",
1274 help="Filter by nodes (primary only)",
1275 const=_SHUTDOWN_NODES_PRI, action="store_const")
1277 m_sec_node_opt = make_option("--secondary", dest="multi_mode",
1278 help="Filter by nodes (secondary only)",
1279 const=_SHUTDOWN_NODES_SEC, action="store_const")
1281 m_node_opt = make_option("--node", dest="multi_mode",
1282 help="Filter by nodes (primary and secondary)",
1283 const=_SHUTDOWN_NODES_BOTH, action="store_const")
1285 m_clust_opt = make_option("--all", dest="multi_mode",
1286 help="Select all instances in the cluster",
1287 const=_SHUTDOWN_CLUSTER, action="store_const")
1289 m_inst_opt = make_option("--instance", dest="multi_mode",
1290 help="Filter by instance name [default]",
1291 const=_SHUTDOWN_INSTANCES, action="store_const")
1294 # this is defined separately due to readability only
1297 make_option("-n", "--node", dest="node",
1298 help="Target node and optional secondary node",
1299 metavar="<pnode>[:<snode>]"),
1301 keyval_option("-B", "--backend", dest="beparams",
1302 type="keyval", default={},
1303 help="Backend parameters"),
1304 make_option("-t", "--disk-template", dest="disk_template",
1305 help="Custom disk setup (diskless, file, plain or drbd)",
1306 default=None, metavar="TEMPL"),
1307 cli_option("-s", "--os-size", dest="sd_size", help="Disk size for a"
1308 " single-disk configuration, when not using the --disk option,"
1309 " in MiB unless a suffix is used",
1310 default=None, type="unit", metavar="<size>"),
1311 ikv_option("--disk", help="Disk information",
1312 default=[], dest="disks",
1314 type="identkeyval"),
1315 ikv_option("--net", help="NIC information",
1316 default=[], dest="nics",
1318 type="identkeyval"),
1319 make_option("--no-nics", default=False, action="store_true",
1320 help="Do not create any network cards for the instance"),
1321 make_option("--no-wait-for-sync", dest="wait_for_sync", default=True,
1322 action="store_false", help="Don't wait for sync (DANGEROUS!)"),
1323 make_option("--no-start", dest="start", default=True,
1324 action="store_false", help="Don't start the instance after"
1326 make_option("--no-ip-check", dest="ip_check", default=True,
1327 action="store_false", help="Don't check that the instance's IP"
1328 " is alive (only valid with --no-start)"),
1329 make_option("--file-storage-dir", dest="file_storage_dir",
1330 help="Relative path under default cluster-wide file storage dir"
1331 " to store file-based disks", default=None,
1333 make_option("--file-driver", dest="file_driver", help="Driver to use"
1334 " for image files", default="loop", metavar="<DRIVER>"),
1335 make_option("-I", "--iallocator", metavar="<NAME>",
1336 help="Select nodes for the instance automatically using the"
1337 " <NAME> iallocator plugin", default=None, type="string"),
1338 ikv_option("-H", "--hypervisor", dest="hypervisor",
1339 help="Hypervisor and hypervisor options, in the format"
1340 " hypervisor:option=value,option=value,...", default=None,
1341 type="identkeyval"),
1346 'add': (AddInstance, ARGS_ONE, add_opts,
1347 "[...] -t disk-type -n node[:secondary-node] -o os-type <name>",
1348 "Creates and adds a new instance to the cluster"),
1349 'batch-create': (BatchCreate, ARGS_ONE,
1351 "<instances_file.json>",
1352 "Create a bunch of instances based on specs in the file."),
1353 'console': (ConnectToInstanceConsole, ARGS_ONE,
1355 make_option("--show-cmd", dest="show_command",
1356 action="store_true", default=False,
1357 help=("Show command instead of executing it"))],
1358 "[--show-cmd] <instance>",
1359 "Opens a console on the specified instance"),
1360 'failover': (FailoverInstance, ARGS_ONE,
1361 [DEBUG_OPT, FORCE_OPT,
1362 make_option("--ignore-consistency", dest="ignore_consistency",
1363 action="store_true", default=False,
1364 help="Ignore the consistency of the disks on"
1369 "Stops the instance and starts it on the backup node, using"
1370 " the remote mirror (only for instances of type drbd)"),
1371 'migrate': (MigrateInstance, ARGS_ONE,
1372 [DEBUG_OPT, FORCE_OPT,
1373 make_option("--non-live", dest="live",
1374 default=True, action="store_false",
1375 help="Do a non-live migration (this usually means"
1376 " freeze the instance, save the state,"
1377 " transfer and only then resume running on the"
1378 " secondary node)"),
1379 make_option("--cleanup", dest="cleanup",
1380 default=False, action="store_true",
1381 help="Instead of performing the migration, try to"
1382 " recover from a failed cleanup. This is safe"
1383 " to run even if the instance is healthy, but it"
1384 " will create extra replication traffic and "
1385 " disrupt briefly the replication (like during the"
1389 "Migrate instance to its secondary node"
1390 " (only for instances of type drbd)"),
1391 'info': (ShowInstanceConfig, ARGS_ANY,
1393 make_option("-s", "--static", dest="static",
1394 action="store_true", default=False,
1395 help="Only show configuration data, not runtime data"),
1396 make_option("--all", dest="show_all",
1397 default=False, action="store_true",
1398 help="Show info on all instances on the cluster."
1399 " This can take a long time to run, use wisely."),
1400 ], "[-s] {--all | <instance>...}",
1401 "Show information on the specified instance(s)"),
1402 'list': (ListInstances, ARGS_ANY,
1403 [DEBUG_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, SYNC_OPT],
1405 "Lists the instances and their status. The available fields are"
1406 " (see the man page for details): status, oper_state, oper_ram,"
1407 " name, os, pnode, snodes, admin_state, admin_ram, disk_template,"
1408 " ip, mac, mode, link, sda_size, sdb_size, vcpus, serial_no,"
1410 " The default field"
1411 " list is (in order): %s." % ", ".join(_LIST_DEF_FIELDS),
1413 'reinstall': (ReinstallInstance, ARGS_ANY,
1414 [DEBUG_OPT, FORCE_OPT, os_opt,
1416 m_node_opt, m_pri_node_opt, m_sec_node_opt,
1417 m_clust_opt, m_inst_opt,
1418 make_option("--select-os", dest="select_os",
1419 action="store_true", default=False,
1420 help="Interactive OS reinstall, lists available"
1421 " OS templates for selection"),
1424 "[-f] <instance>", "Reinstall a stopped instance"),
1425 'remove': (RemoveInstance, ARGS_ONE,
1426 [DEBUG_OPT, FORCE_OPT,
1427 make_option("--ignore-failures", dest="ignore_failures",
1428 action="store_true", default=False,
1429 help=("Remove the instance from the cluster even"
1430 " if there are failures during the removal"
1431 " process (shutdown, disk removal, etc.)")),
1434 "[-f] <instance>", "Shuts down the instance and removes it"),
1435 'rename': (RenameInstance, ARGS_FIXED(2),
1437 make_option("--no-ip-check", dest="ignore_ip",
1438 help="Do not check that the IP of the new name"
1440 default=False, action="store_true"),
1443 "<instance> <new_name>", "Rename the instance"),
1444 'replace-disks': (ReplaceDisks, ARGS_ONE,
1446 make_option("-n", "--new-secondary", dest="new_secondary",
1447 help=("New secondary node (for secondary"
1448 " node change)"), metavar="NODE",
1450 make_option("-p", "--on-primary", dest="on_primary",
1451 default=False, action="store_true",
1452 help=("Replace the disk(s) on the primary"
1453 " node (only for the drbd template)")),
1454 make_option("-s", "--on-secondary", dest="on_secondary",
1455 default=False, action="store_true",
1456 help=("Replace the disk(s) on the secondary"
1457 " node (only for the drbd template)")),
1458 make_option("--disks", dest="disks", default=None,
1459 help="Comma-separated list of disks"
1460 " indices to replace (e.g. 0,2) (optional,"
1461 " defaults to all disks)"),
1462 make_option("-I", "--iallocator", metavar="<NAME>",
1463 help="Select new secondary for the instance"
1464 " automatically using the"
1465 " <NAME> iallocator plugin (enables"
1466 " secondary node replacement)",
1467 default=None, type="string"),
1470 "[-s|-p|-n NODE|-I NAME] <instance>",
1471 "Replaces all disks for the instance"),
1472 'modify': (SetInstanceParams, ARGS_ONE,
1473 [DEBUG_OPT, FORCE_OPT,
1474 keyval_option("-H", "--hypervisor", type="keyval",
1475 default={}, dest="hypervisor",
1476 help="Change hypervisor parameters"),
1477 keyval_option("-B", "--backend", type="keyval",
1478 default={}, dest="beparams",
1479 help="Change backend parameters"),
1480 ikv_option("--disk", help="Disk changes",
1481 default=[], dest="disks",
1483 type="identkeyval"),
1484 ikv_option("--net", help="NIC changes",
1485 default=[], dest="nics",
1487 type="identkeyval"),
1490 "<instance>", "Alters the parameters of an instance"),
1491 'shutdown': (ShutdownInstance, ARGS_ANY,
1492 [DEBUG_OPT, m_node_opt, m_pri_node_opt, m_sec_node_opt,
1493 m_clust_opt, m_inst_opt, m_force_multi,
1496 "<instance>", "Stops an instance"),
1497 'startup': (StartupInstance, ARGS_ANY,
1498 [DEBUG_OPT, FORCE_OPT, m_force_multi,
1499 m_node_opt, m_pri_node_opt, m_sec_node_opt,
1500 m_clust_opt, m_inst_opt,
1502 keyval_option("-H", "--hypervisor", type="keyval",
1503 default={}, dest="hvparams",
1504 help="Temporary hypervisor parameters"),
1505 keyval_option("-B", "--backend", type="keyval",
1506 default={}, dest="beparams",
1507 help="Temporary backend parameters"),
1509 "<instance>", "Starts an instance"),
1511 'reboot': (RebootInstance, ARGS_ANY,
1512 [DEBUG_OPT, m_force_multi,
1513 make_option("-t", "--type", dest="reboot_type",
1514 help="Type of reboot: soft/hard/full",
1515 default=constants.INSTANCE_REBOOT_HARD,
1516 type="string", metavar="<REBOOT>"),
1517 make_option("--ignore-secondaries", dest="ignore_secondaries",
1518 default=False, action="store_true",
1519 help="Ignore errors from secondaries"),
1520 m_node_opt, m_pri_node_opt, m_sec_node_opt,
1521 m_clust_opt, m_inst_opt,
1524 "<instance>", "Reboots an instance"),
1525 'activate-disks': (ActivateDisks, ARGS_ONE, [DEBUG_OPT, SUBMIT_OPT],
1527 "Activate an instance's disks"),
1528 'deactivate-disks': (DeactivateDisks, ARGS_ONE, [DEBUG_OPT, SUBMIT_OPT],
1530 "Deactivate an instance's disks"),
1531 'grow-disk': (GrowDisk, ARGS_FIXED(3),
1532 [DEBUG_OPT, SUBMIT_OPT,
1533 make_option("--no-wait-for-sync",
1534 dest="wait_for_sync", default=True,
1535 action="store_false",
1536 help="Don't wait for sync (DANGEROUS!)"),
1538 "<instance> <disk> <size>", "Grow an instance's disk"),
1539 'list-tags': (ListTags, ARGS_ONE, [DEBUG_OPT],
1540 "<instance_name>", "List the tags of the given instance"),
1541 'add-tags': (AddTags, ARGS_ATLEAST(1), [DEBUG_OPT, TAG_SRC_OPT],
1542 "<instance_name> tag...", "Add tags to the given instance"),
1543 'remove-tags': (RemoveTags, ARGS_ATLEAST(1), [DEBUG_OPT, TAG_SRC_OPT],
1544 "<instance_name> tag...", "Remove tags from given instance"),
1547 #: dictionary with aliases for commands
1549 'activate_block_devs': 'activate-disks',
1550 'replace_disks': 'replace-disks',
1555 if __name__ == '__main__':
1556 sys.exit(GenericMain(commands, aliases=aliases,
1557 override={"tag_type": constants.TAG_INSTANCE}))