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)
31 from cStringIO import StringIO
33 from ganeti.cli import *
34 from ganeti import opcodes
35 from ganeti import constants
36 from ganeti import utils
37 from ganeti import errors
40 _SHUTDOWN_CLUSTER = "cluster"
41 _SHUTDOWN_NODES_BOTH = "nodes"
42 _SHUTDOWN_NODES_PRI = "nodes-pri"
43 _SHUTDOWN_NODES_SEC = "nodes-sec"
44 _SHUTDOWN_INSTANCES = "instances"
49 #: default list of options for L{ListInstances}
51 "name", "hypervisor", "os", "pnode", "status", "oper_ram",
55 def _ExpandMultiNames(mode, names, client=None):
56 """Expand the given names using the passed mode.
58 For _SHUTDOWN_CLUSTER, all instances will be returned. For
59 _SHUTDOWN_NODES_PRI/SEC, all instances having those nodes as
60 primary/secondary will be returned. For _SHUTDOWN_NODES_BOTH, all
61 instances having those nodes as either primary or secondary will be
62 returned. For _SHUTDOWN_INSTANCES, the given instances will be
65 @param mode: one of L{_SHUTDOWN_CLUSTER}, L{_SHUTDOWN_NODES_BOTH},
66 L{_SHUTDOWN_NODES_PRI}, L{_SHUTDOWN_NODES_SEC} or
67 L{_SHUTDOWN_INSTANCES}
68 @param names: a list of names; for cluster, it must be empty,
69 and for node and instance it must be a list of valid item
70 names (short names are valid as usual, e.g. node1 instead of
73 @return: the list of names after the expansion
74 @raise errors.ProgrammerError: for unknown selection type
75 @raise errors.OpPrereqError: for invalid input parameters
80 if mode == _SHUTDOWN_CLUSTER:
82 raise errors.OpPrereqError("Cluster filter mode takes no arguments")
83 idata = client.QueryInstances([], ["name"], False)
84 inames = [row[0] for row in idata]
86 elif mode in (_SHUTDOWN_NODES_BOTH,
90 raise errors.OpPrereqError("No node names passed")
91 ndata = client.QueryNodes(names, ["name", "pinst_list", "sinst_list"],
93 ipri = [row[1] for row in ndata]
94 pri_names = list(itertools.chain(*ipri))
95 isec = [row[2] for row in ndata]
96 sec_names = list(itertools.chain(*isec))
97 if mode == _SHUTDOWN_NODES_BOTH:
98 inames = pri_names + sec_names
99 elif mode == _SHUTDOWN_NODES_PRI:
101 elif mode == _SHUTDOWN_NODES_SEC:
104 raise errors.ProgrammerError("Unhandled shutdown type")
106 elif mode == _SHUTDOWN_INSTANCES:
108 raise errors.OpPrereqError("No instance names passed")
109 idata = client.QueryInstances(names, ["name"], False)
110 inames = [row[0] for row in idata]
113 raise errors.OpPrereqError("Unknown mode '%s'" % mode)
118 def _ConfirmOperation(inames, text, extra=""):
119 """Ask the user to confirm an operation on a list of instances.
121 This function is used to request confirmation for doing an operation
122 on a given list of instances.
125 @param inames: the list of names that we display when
126 we ask for confirmation
128 @param text: the operation that the user should confirm
129 (e.g. I{shutdown} or I{startup})
131 @return: True or False depending on user's confirmation.
135 msg = ("The %s will operate on %d instances.\n%s"
136 "Do you want to continue?" % (text, count, extra))
137 affected = ("\nAffected instances:\n" +
138 "\n".join([" %s" % name for name in inames]))
140 choices = [('y', True, 'Yes, execute the %s' % text),
141 ('n', False, 'No, abort the %s' % text)]
144 choices.insert(1, ('v', 'v', 'View the list of affected instances'))
149 choice = AskUser(ask, choices)
152 choice = AskUser(msg + affected, choices)
156 def _EnsureInstancesExist(client, names):
157 """Check for and ensure the given instance names exist.
159 This function will raise an OpPrereqError in case they don't
160 exist. Otherwise it will exit cleanly.
162 @type client: L{ganeti.luxi.Client}
163 @param client: the client to use for the query
165 @param names: the list of instance names to query
166 @raise errors.OpPrereqError: in case any instance is missing
169 # TODO: change LUQueryInstances to that it actually returns None
170 # instead of raising an exception, or devise a better mechanism
171 result = client.QueryInstances(names, ["name"], False)
172 for orig_name, row in zip(names, result):
174 raise errors.OpPrereqError("Instance '%s' does not exist" % orig_name)
177 def GenericManyOps(operation, fn):
178 """Generic multi-instance operations.
180 The will return a wrapper that processes the options and arguments
181 given, and uses the passed function to build the opcode needed for
182 the specific operation. Thus all the generic loop/confirmation code
183 is abstracted into this function.
186 def realfn(opts, args):
187 if opts.multi_mode is None:
188 opts.multi_mode = _SHUTDOWN_INSTANCES
190 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
192 raise errors.OpPrereqError("Selection filter does not match"
194 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
195 if not (opts.force_multi or not multi_on
196 or _ConfirmOperation(inames, operation)):
198 jex = JobExecutor(verbose=multi_on, cl=cl)
201 jex.QueueJob(name, op)
202 jex.WaitOrShow(not opts.submit_only)
207 def ListInstances(opts, args):
208 """List instances and their properties.
210 @param opts: the command line options selected by the user
212 @param args: should be an empty list
214 @return: the desired exit code
217 if opts.output is None:
218 selected_fields = _LIST_DEF_FIELDS
219 elif opts.output.startswith("+"):
220 selected_fields = _LIST_DEF_FIELDS + opts.output[1:].split(",")
222 selected_fields = opts.output.split(",")
224 output = GetClient().QueryInstances(args, selected_fields, opts.do_locking)
226 if not opts.no_headers:
228 "name": "Instance", "os": "OS", "pnode": "Primary_node",
229 "snodes": "Secondary_Nodes", "admin_state": "Autostart",
230 "oper_state": "Running",
231 "oper_ram": "Memory", "disk_template": "Disk_template",
232 "ip": "IP_address", "mac": "MAC_address",
233 "nic_mode": "NIC_Mode", "nic_link": "NIC_Link",
235 "sda_size": "Disk/0", "sdb_size": "Disk/1",
236 "disk_usage": "DiskUsage",
237 "status": "Status", "tags": "Tags",
238 "network_port": "Network_port",
239 "hv/kernel_path": "Kernel_path",
240 "hv/initrd_path": "Initrd_path",
241 "hv/boot_order": "HVM_boot_order",
242 "hv/acpi": "HVM_ACPI",
244 "hv/cdrom_image_path": "HVM_CDROM_image_path",
245 "hv/nic_type": "HVM_NIC_type",
246 "hv/disk_type": "HVM_Disk_type",
247 "hv/vnc_bind_address": "VNC_bind_address",
248 "serial_no": "SerialNo", "hypervisor": "Hypervisor",
249 "hvparams": "Hypervisor_parameters",
250 "be/memory": "Configured_memory",
253 "be/auto_balance": "Auto_balance",
254 "disk.count": "Disks", "disk.sizes": "Disk_sizes",
255 "nic.count": "NICs", "nic.ips": "NIC_IPs",
256 "nic.modes": "NIC_modes", "nic.links": "NIC_links",
257 "nic.bridges": "NIC_bridges", "nic.macs": "NIC_MACs",
258 "ctime": "CTime", "mtime": "MTime", "uuid": "UUID",
263 unitfields = ["be/memory", "oper_ram", "sd(a|b)_size", "disk\.size/.*"]
264 numfields = ["be/memory", "oper_ram", "sd(a|b)_size", "be/vcpus",
265 "serial_no", "(disk|nic)\.count", "disk\.size/.*"]
267 list_type_fields = ("tags", "disk.sizes", "nic.macs", "nic.ips",
268 "nic.modes", "nic.links", "nic.bridges")
269 # change raw values to nicer strings
271 for idx, field in enumerate(selected_fields):
273 if field == "snodes":
274 val = ",".join(val) or "-"
275 elif field == "admin_state":
280 elif field == "oper_state":
287 elif field == "oper_ram":
290 elif field == "sda_size" or field == "sdb_size":
293 elif field == "ctime" or field == "mtime":
294 val = utils.FormatTime(val)
295 elif field in list_type_fields:
296 val = ",".join(str(item) for item in val)
301 data = GenerateTable(separator=opts.separator, headers=headers,
302 fields=selected_fields, unitfields=unitfields,
303 numfields=numfields, data=output, units=opts.units)
311 def AddInstance(opts, args):
312 """Add an instance to the cluster.
314 This is just a wrapper over GenericInstanceCreate.
317 return GenericInstanceCreate(constants.INSTANCE_CREATE, opts, args)
321 def BatchCreate(opts, args):
322 """Create instances using a definition file.
324 This function reads a json file with instances defined
328 "disk_size": [20480],
334 "primary_node": "firstnode",
335 "secondary_node": "secondnode",
336 "iallocator": "dumb"}
339 Note that I{primary_node} and I{secondary_node} have precedence over
342 @param opts: the command line options selected by the user
344 @param args: should contain one element, the json filename
346 @return: the desired exit code
349 _DEFAULT_SPECS = {"disk_size": [20 * 1024],
352 "primary_node": None,
353 "secondary_node": None,
359 "file_storage_dir": None,
360 "file_driver": 'loop'}
362 def _PopulateWithDefaults(spec):
363 """Returns a new hash combined with default values."""
364 mydict = _DEFAULT_SPECS.copy()
369 """Validate the instance specs."""
370 # Validate fields required under any circumstances
371 for required_field in ('os', 'template'):
372 if required_field not in spec:
373 raise errors.OpPrereqError('Required field "%s" is missing.' %
375 # Validate special fields
376 if spec['primary_node'] is not None:
377 if (spec['template'] in constants.DTS_NET_MIRROR and
378 spec['secondary_node'] is None):
379 raise errors.OpPrereqError('Template requires secondary node, but'
380 ' there was no secondary provided.')
381 elif spec['iallocator'] is None:
382 raise errors.OpPrereqError('You have to provide at least a primary_node'
383 ' or an iallocator.')
385 if (spec['hvparams'] and
386 not isinstance(spec['hvparams'], dict)):
387 raise errors.OpPrereqError('Hypervisor parameters must be a dict.')
389 json_filename = args[0]
391 instance_data = simplejson.loads(utils.ReadFile(json_filename))
392 except Exception, err:
393 ToStderr("Can't parse the instance definition file: %s" % str(err))
398 # Iterate over the instances and do:
399 # * Populate the specs with default value
400 # * Validate the instance specs
401 i_names = utils.NiceSort(instance_data.keys())
403 specs = instance_data[name]
404 specs = _PopulateWithDefaults(specs)
407 hypervisor = specs['hypervisor']
408 hvparams = specs['hvparams']
411 for elem in specs['disk_size']:
413 size = utils.ParseUnit(elem)
414 except ValueError, err:
415 raise errors.OpPrereqError("Invalid disk size '%s' for"
418 disks.append({"size": size})
420 utils.ForceDictType(specs['backend'], constants.BES_PARAMETER_TYPES)
421 utils.ForceDictType(hvparams, constants.HVS_PARAMETER_TYPES)
424 for field in ('ip', 'mac', 'mode', 'link', 'bridge'):
428 tmp_nics[0][field] = specs[field]
430 if specs['nics'] is not None and tmp_nics:
431 raise errors.OpPrereqError("'nics' list incompatible with using"
432 " individual nic fields as well")
433 elif specs['nics'] is not None:
434 tmp_nics = specs['nics']
438 op = opcodes.OpCreateInstance(instance_name=name,
440 disk_template=specs['template'],
441 mode=constants.INSTANCE_CREATE,
443 force_variant=opts.force_variant,
444 pnode=specs['primary_node'],
445 snode=specs['secondary_node'],
447 start=specs['start'],
448 ip_check=specs['ip_check'],
450 iallocator=specs['iallocator'],
451 hypervisor=hypervisor,
453 beparams=specs['backend'],
454 file_storage_dir=specs['file_storage_dir'],
455 file_driver=specs['file_driver'])
457 jex.QueueJob(name, op)
458 # we never want to wait, just show the submitted job IDs
459 jex.WaitOrShow(False)
464 def ReinstallInstance(opts, args):
465 """Reinstall an instance.
467 @param opts: the command line options selected by the user
469 @param args: should contain only one element, the name of the
470 instance to be reinstalled
472 @return: the desired exit code
475 # first, compute the desired name list
476 if opts.multi_mode is None:
477 opts.multi_mode = _SHUTDOWN_INSTANCES
479 inames = _ExpandMultiNames(opts.multi_mode, args)
481 raise errors.OpPrereqError("Selection filter does not match any instances")
483 # second, if requested, ask for an OS
484 if opts.select_os is True:
485 op = opcodes.OpDiagnoseOS(output_fields=["name", "valid", "variants"],
487 result = SubmitOpCode(op)
490 ToStdout("Can't get the OS list")
493 ToStdout("Available OS templates:")
496 for (name, valid, variants) in result:
498 for entry in CalculateOSNames(name, variants):
499 ToStdout("%3s: %s", number, entry)
500 choices.append(("%s" % number, entry, entry))
503 choices.append(('x', 'exit', 'Exit gnt-instance reinstall'))
504 selected = AskUser("Enter OS template number (or x to abort):",
507 if selected == 'exit':
508 ToStderr("User aborted reinstall, exiting")
515 # third, get confirmation: multi-reinstall requires --force-multi
516 # *and* --force, single-reinstall just --force
517 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
519 warn_msg = "Note: this will remove *all* data for the below instances!\n"
520 if not ((opts.force_multi and opts.force) or
521 _ConfirmOperation(inames, "reinstall", extra=warn_msg)):
525 usertext = ("This will reinstall the instance %s and remove"
526 " all data. Continue?") % inames[0]
527 if not AskUser(usertext):
530 jex = JobExecutor(verbose=multi_on)
531 for instance_name in inames:
532 op = opcodes.OpReinstallInstance(instance_name=instance_name,
534 force_variant=opts.force_variant)
535 jex.QueueJob(instance_name, op)
537 jex.WaitOrShow(not opts.submit_only)
541 def RemoveInstance(opts, args):
542 """Remove an instance.
544 @param opts: the command line options selected by the user
546 @param args: should contain only one element, the name of
547 the instance to be removed
549 @return: the desired exit code
552 instance_name = args[0]
557 _EnsureInstancesExist(cl, [instance_name])
559 usertext = ("This will remove the volumes of the instance %s"
560 " (including mirrors), thus removing all the data"
561 " of the instance. Continue?") % instance_name
562 if not AskUser(usertext):
565 op = opcodes.OpRemoveInstance(instance_name=instance_name,
566 ignore_failures=opts.ignore_failures,
567 timeout=opts.timeout)
568 SubmitOrSend(op, opts, cl=cl)
572 def RenameInstance(opts, args):
573 """Rename an instance.
575 @param opts: the command line options selected by the user
577 @param args: should contain two elements, the old and the
580 @return: the desired exit code
583 op = opcodes.OpRenameInstance(instance_name=args[0],
585 ignore_ip=opts.ignore_ip)
586 SubmitOrSend(op, opts)
590 def ActivateDisks(opts, args):
591 """Activate an instance's disks.
593 This serves two purposes:
594 - it allows (as long as the instance is not running)
595 mounting the disks and modifying them from the node
596 - it repairs inactive secondary drbds
598 @param opts: the command line options selected by the user
600 @param args: should contain only one element, the instance name
602 @return: the desired exit code
605 instance_name = args[0]
606 op = opcodes.OpActivateInstanceDisks(instance_name=instance_name,
607 ignore_size=opts.ignore_size)
608 disks_info = SubmitOrSend(op, opts)
609 for host, iname, nname in disks_info:
610 ToStdout("%s:%s:%s", host, iname, nname)
614 def DeactivateDisks(opts, args):
615 """Deactivate an instance's disks.
617 This function takes the instance name, looks for its primary node
618 and the tries to shutdown its block devices on that node.
620 @param opts: the command line options selected by the user
622 @param args: should contain only one element, the instance name
624 @return: the desired exit code
627 instance_name = args[0]
628 op = opcodes.OpDeactivateInstanceDisks(instance_name=instance_name)
629 SubmitOrSend(op, opts)
633 def RecreateDisks(opts, args):
634 """Recreate an instance's disks.
636 @param opts: the command line options selected by the user
638 @param args: should contain only one element, the instance name
640 @return: the desired exit code
643 instance_name = args[0]
646 opts.disks = [int(v) for v in opts.disks.split(",")]
647 except (ValueError, TypeError), err:
648 ToStderr("Invalid disks value: %s" % str(err))
653 op = opcodes.OpRecreateInstanceDisks(instance_name=instance_name,
655 SubmitOrSend(op, opts)
659 def GrowDisk(opts, args):
660 """Grow an instance's disks.
662 @param opts: the command line options selected by the user
664 @param args: should contain two elements, the instance name
665 whose disks we grow and the disk name, e.g. I{sda}
667 @return: the desired exit code
674 except ValueError, err:
675 raise errors.OpPrereqError("Invalid disk index: %s" % str(err))
676 amount = utils.ParseUnit(args[2])
677 op = opcodes.OpGrowDisk(instance_name=instance, disk=disk, amount=amount,
678 wait_for_sync=opts.wait_for_sync)
679 SubmitOrSend(op, opts)
683 def _StartupInstance(name, opts):
684 """Startup instances.
686 This returns the opcode to start an instance, and its decorator will
687 wrap this into a loop starting all desired instances.
689 @param name: the name of the instance to act on
690 @param opts: the command line options selected by the user
691 @return: the opcode needed for the operation
694 op = opcodes.OpStartupInstance(instance_name=name,
696 # do not add these parameters to the opcode unless they're defined
698 op.hvparams = opts.hvparams
700 op.beparams = opts.beparams
704 def _RebootInstance(name, opts):
705 """Reboot instance(s).
707 This returns the opcode to reboot an instance, and its decorator
708 will wrap this into a loop rebooting all desired instances.
710 @param name: the name of the instance to act on
711 @param opts: the command line options selected by the user
712 @return: the opcode needed for the operation
715 return opcodes.OpRebootInstance(instance_name=name,
716 reboot_type=opts.reboot_type,
717 ignore_secondaries=opts.ignore_secondaries,
718 timeout=opts.timeout)
721 def _ShutdownInstance(name, opts):
722 """Shutdown an instance.
724 This returns the opcode to shutdown an instance, and its decorator
725 will wrap this into a loop shutting down all desired instances.
727 @param name: the name of the instance to act on
728 @param opts: the command line options selected by the user
729 @return: the opcode needed for the operation
732 return opcodes.OpShutdownInstance(instance_name=name,
733 timeout=opts.timeout)
736 def ReplaceDisks(opts, args):
737 """Replace the disks of an instance
739 @param opts: the command line options selected by the user
741 @param args: should contain only one element, the instance name
743 @return: the desired exit code
746 instance_name = args[0]
747 new_2ndary = opts.dst_node
748 iallocator = opts.iallocator
749 if opts.disks is None:
753 disks = [int(i) for i in opts.disks.split(",")]
754 except ValueError, err:
755 raise errors.OpPrereqError("Invalid disk index passed: %s" % str(err))
756 cnt = [opts.on_primary, opts.on_secondary, opts.auto,
757 new_2ndary is not None, iallocator is not None].count(True)
759 raise errors.OpPrereqError("One and only one of the -p, -s, -a, -n and -i"
760 " options must be passed")
761 elif opts.on_primary:
762 mode = constants.REPLACE_DISK_PRI
763 elif opts.on_secondary:
764 mode = constants.REPLACE_DISK_SEC
766 mode = constants.REPLACE_DISK_AUTO
768 raise errors.OpPrereqError("Cannot specify disks when using automatic"
770 elif new_2ndary is not None or iallocator is not None:
772 mode = constants.REPLACE_DISK_CHG
774 op = opcodes.OpReplaceDisks(instance_name=args[0], disks=disks,
775 remote_node=new_2ndary, mode=mode,
776 iallocator=iallocator)
777 SubmitOrSend(op, opts)
781 def FailoverInstance(opts, args):
782 """Failover an instance.
784 The failover is done by shutting it down on its present node and
785 starting it on the secondary.
787 @param opts: the command line options selected by the user
789 @param args: should contain only one element, the instance name
791 @return: the desired exit code
795 instance_name = args[0]
799 _EnsureInstancesExist(cl, [instance_name])
801 usertext = ("Failover will happen to image %s."
802 " This requires a shutdown of the instance. Continue?" %
804 if not AskUser(usertext):
807 op = opcodes.OpFailoverInstance(instance_name=instance_name,
808 ignore_consistency=opts.ignore_consistency,
809 timeout=opts.timeout)
810 SubmitOrSend(op, opts, cl=cl)
814 def MigrateInstance(opts, args):
815 """Migrate an instance.
817 The migrate is done without shutdown.
819 @param opts: the command line options selected by the user
821 @param args: should contain only one element, the instance name
823 @return: the desired exit code
827 instance_name = args[0]
831 _EnsureInstancesExist(cl, [instance_name])
834 usertext = ("Instance %s will be recovered from a failed migration."
835 " Note that the migration procedure (including cleanup)" %
838 usertext = ("Instance %s will be migrated. Note that migration" %
840 usertext += (" is **experimental** in this version."
841 " This might impact the instance if anything goes wrong."
843 if not AskUser(usertext):
846 op = opcodes.OpMigrateInstance(instance_name=instance_name, live=opts.live,
847 cleanup=opts.cleanup)
848 SubmitOpCode(op, cl=cl)
852 def MoveInstance(opts, args):
855 @param opts: the command line options selected by the user
857 @param args: should contain only one element, the instance name
859 @return: the desired exit code
863 instance_name = args[0]
867 usertext = ("Instance %s will be moved."
868 " This requires a shutdown of the instance. Continue?" %
870 if not AskUser(usertext):
873 op = opcodes.OpMoveInstance(instance_name=instance_name,
874 target_node=opts.node,
875 timeout=opts.timeout)
876 SubmitOrSend(op, opts, cl=cl)
880 def ConnectToInstanceConsole(opts, args):
881 """Connect to the console of an instance.
883 @param opts: the command line options selected by the user
885 @param args: should contain only one element, the instance name
887 @return: the desired exit code
890 instance_name = args[0]
892 op = opcodes.OpConnectConsole(instance_name=instance_name)
893 cmd = SubmitOpCode(op)
895 if opts.show_command:
896 ToStdout("%s", utils.ShellQuoteArgs(cmd))
899 os.execvp(cmd[0], cmd)
901 ToStderr("Can't run console command %s with arguments:\n'%s'",
902 cmd[0], " ".join(cmd))
906 def _FormatLogicalID(dev_type, logical_id):
907 """Formats the logical_id of a disk.
910 if dev_type == constants.LD_DRBD8:
911 node_a, node_b, port, minor_a, minor_b, key = logical_id
913 ("nodeA", "%s, minor=%s" % (node_a, minor_a)),
914 ("nodeB", "%s, minor=%s" % (node_b, minor_b)),
918 elif dev_type == constants.LD_LV:
919 vg_name, lv_name = logical_id
920 data = ["%s/%s" % (vg_name, lv_name)]
922 data = [str(logical_id)]
927 def _FormatBlockDevInfo(idx, top_level, dev, static):
928 """Show block device information.
930 This is only used by L{ShowInstanceConfig}, but it's too big to be
931 left for an inline definition.
934 @param idx: the index of the current disk
935 @type top_level: boolean
936 @param top_level: if this a top-level disk?
938 @param dev: dictionary with disk information
939 @type static: boolean
940 @param static: wheter the device information doesn't contain
941 runtime information but only static data
942 @return: a list of either strings, tuples or lists
943 (which should be formatted at a higher indent level)
946 def helper(dtype, status):
947 """Format one line for physical device status.
950 @param dtype: a constant from the L{constants.LDS_BLOCK} set
952 @param status: a tuple as returned from L{backend.FindBlockDevice}
953 @return: the string representing the status
959 (path, major, minor, syncp, estt, degr, ldisk_status) = status
963 major_string = str(major)
968 minor_string = str(minor)
970 txt += ("%s (%s:%s)" % (path, major_string, minor_string))
971 if dtype in (constants.LD_DRBD8, ):
972 if syncp is not None:
973 sync_text = "*RECOVERING* %5.2f%%," % syncp
975 sync_text += " ETA %ds" % estt
977 sync_text += " ETA unknown"
979 sync_text = "in sync"
981 degr_text = "*DEGRADED*"
984 if ldisk_status == constants.LDS_FAULTY:
985 ldisk_text = " *MISSING DISK*"
986 elif ldisk_status == constants.LDS_UNKNOWN:
987 ldisk_text = " *UNCERTAIN STATE*"
990 txt += (" %s, status %s%s" % (sync_text, degr_text, ldisk_text))
991 elif dtype == constants.LD_LV:
992 if ldisk_status == constants.LDS_FAULTY:
993 ldisk_text = " *FAILED* (failed drive?)"
1001 if dev["iv_name"] is not None:
1002 txt = dev["iv_name"]
1004 txt = "disk %d" % idx
1006 txt = "child %d" % idx
1007 if isinstance(dev["size"], int):
1008 nice_size = utils.FormatUnit(dev["size"], "h")
1010 nice_size = dev["size"]
1011 d1 = ["- %s: %s, size %s" % (txt, dev["dev_type"], nice_size)]
1014 data.append(("access mode", dev["mode"]))
1015 if dev["logical_id"] is not None:
1017 l_id = _FormatLogicalID(dev["dev_type"], dev["logical_id"])
1019 l_id = [str(dev["logical_id"])]
1021 data.append(("logical_id", l_id[0]))
1024 elif dev["physical_id"] is not None:
1025 data.append("physical_id:")
1026 data.append([dev["physical_id"]])
1028 data.append(("on primary", helper(dev["dev_type"], dev["pstatus"])))
1029 if dev["sstatus"] and not static:
1030 data.append(("on secondary", helper(dev["dev_type"], dev["sstatus"])))
1033 data.append("child devices:")
1034 for c_idx, child in enumerate(dev["children"]):
1035 data.append(_FormatBlockDevInfo(c_idx, False, child, static))
1040 def _FormatList(buf, data, indent_level):
1041 """Formats a list of data at a given indent level.
1043 If the element of the list is:
1044 - a string, it is simply formatted as is
1045 - a tuple, it will be split into key, value and the all the
1046 values in a list will be aligned all at the same start column
1047 - a list, will be recursively formatted
1050 @param buf: the buffer into which we write the output
1051 @param data: the list to format
1052 @type indent_level: int
1053 @param indent_level: the indent level to format at
1056 max_tlen = max([len(elem[0]) for elem in data
1057 if isinstance(elem, tuple)] or [0])
1059 if isinstance(elem, basestring):
1060 buf.write("%*s%s\n" % (2*indent_level, "", elem))
1061 elif isinstance(elem, tuple):
1063 spacer = "%*s" % (max_tlen - len(key), "")
1064 buf.write("%*s%s:%s %s\n" % (2*indent_level, "", key, spacer, value))
1065 elif isinstance(elem, list):
1066 _FormatList(buf, elem, indent_level+1)
1069 def ShowInstanceConfig(opts, args):
1070 """Compute instance run-time status.
1072 @param opts: the command line options selected by the user
1074 @param args: either an empty list, and then we query all
1075 instances, or should contain a list of instance names
1077 @return: the desired exit code
1080 if not args and not opts.show_all:
1081 ToStderr("No instance selected."
1082 " Please pass in --all if you want to query all instances.\n"
1083 "Note that this can take a long time on a big cluster.")
1085 elif args and opts.show_all:
1086 ToStderr("Cannot use --all if you specify instance names.")
1090 op = opcodes.OpQueryInstanceData(instances=args, static=opts.static)
1091 result = SubmitOpCode(op)
1093 ToStdout("No instances.")
1098 for instance_name in result:
1099 instance = result[instance_name]
1100 buf.write("Instance name: %s\n" % instance["name"])
1101 buf.write("UUID: %s\n" % instance["uuid"])
1102 buf.write("Serial number: %s\n" % instance["serial_no"])
1103 buf.write("Creation time: %s\n" % utils.FormatTime(instance["ctime"]))
1104 buf.write("Modification time: %s\n" % utils.FormatTime(instance["mtime"]))
1105 buf.write("State: configured to be %s" % instance["config_state"])
1107 buf.write(", actual state is %s" % instance["run_state"])
1109 ##buf.write("Considered for memory checks in cluster verify: %s\n" %
1110 ## instance["auto_balance"])
1111 buf.write(" Nodes:\n")
1112 buf.write(" - primary: %s\n" % instance["pnode"])
1113 buf.write(" - secondaries: %s\n" % ", ".join(instance["snodes"]))
1114 buf.write(" Operating system: %s\n" % instance["os"])
1115 if instance.has_key("network_port"):
1116 buf.write(" Allocated network port: %s\n" % instance["network_port"])
1117 buf.write(" Hypervisor: %s\n" % instance["hypervisor"])
1119 # custom VNC console information
1120 vnc_bind_address = instance["hv_actual"].get(constants.HV_VNC_BIND_ADDRESS,
1122 if vnc_bind_address:
1123 port = instance["network_port"]
1124 display = int(port) - constants.VNC_BASE_PORT
1125 if display > 0 and vnc_bind_address == constants.BIND_ADDRESS_GLOBAL:
1126 vnc_console_port = "%s:%s (display %s)" % (instance["pnode"],
1129 elif display > 0 and utils.IsValidIP(vnc_bind_address):
1130 vnc_console_port = ("%s:%s (node %s) (display %s)" %
1131 (vnc_bind_address, port,
1132 instance["pnode"], display))
1134 # vnc bind address is a file
1135 vnc_console_port = "%s:%s" % (instance["pnode"],
1137 buf.write(" - console connection: vnc to %s\n" % vnc_console_port)
1139 for key in instance["hv_actual"]:
1140 if key in instance["hv_instance"]:
1141 val = instance["hv_instance"][key]
1143 val = "default (%s)" % instance["hv_actual"][key]
1144 buf.write(" - %s: %s\n" % (key, val))
1145 buf.write(" Hardware:\n")
1146 buf.write(" - VCPUs: %d\n" %
1147 instance["be_actual"][constants.BE_VCPUS])
1148 buf.write(" - memory: %dMiB\n" %
1149 instance["be_actual"][constants.BE_MEMORY])
1150 buf.write(" - NICs:\n")
1151 for idx, (ip, mac, mode, link) in enumerate(instance["nics"]):
1152 buf.write(" - nic/%d: MAC: %s, IP: %s, mode: %s, link: %s\n" %
1153 (idx, mac, ip, mode, link))
1154 buf.write(" Disks:\n")
1156 for idx, device in enumerate(instance["disks"]):
1157 _FormatList(buf, _FormatBlockDevInfo(idx, True, device, opts.static), 2)
1159 ToStdout(buf.getvalue().rstrip('\n'))
1163 def SetInstanceParams(opts, args):
1164 """Modifies an instance.
1166 All parameters take effect only at the next restart of the instance.
1168 @param opts: the command line options selected by the user
1170 @param args: should contain only one element, the instance name
1172 @return: the desired exit code
1175 if not (opts.nics or opts.disks or
1176 opts.hvparams or opts.beparams):
1177 ToStderr("Please give at least one of the parameters.")
1180 for param in opts.beparams:
1181 if isinstance(opts.beparams[param], basestring):
1182 if opts.beparams[param].lower() == "default":
1183 opts.beparams[param] = constants.VALUE_DEFAULT
1185 utils.ForceDictType(opts.beparams, constants.BES_PARAMETER_TYPES,
1186 allowed_values=[constants.VALUE_DEFAULT])
1188 for param in opts.hvparams:
1189 if isinstance(opts.hvparams[param], basestring):
1190 if opts.hvparams[param].lower() == "default":
1191 opts.hvparams[param] = constants.VALUE_DEFAULT
1193 utils.ForceDictType(opts.hvparams, constants.HVS_PARAMETER_TYPES,
1194 allowed_values=[constants.VALUE_DEFAULT])
1196 for idx, (nic_op, nic_dict) in enumerate(opts.nics):
1198 nic_op = int(nic_op)
1199 opts.nics[idx] = (nic_op, nic_dict)
1203 for idx, (disk_op, disk_dict) in enumerate(opts.disks):
1205 disk_op = int(disk_op)
1206 opts.disks[idx] = (disk_op, disk_dict)
1209 if disk_op == constants.DDM_ADD:
1210 if 'size' not in disk_dict:
1211 raise errors.OpPrereqError("Missing required parameter 'size'")
1212 disk_dict['size'] = utils.ParseUnit(disk_dict['size'])
1214 op = opcodes.OpSetInstanceParams(instance_name=args[0],
1217 hvparams=opts.hvparams,
1218 beparams=opts.beparams,
1221 # even if here we process the result, we allow submit only
1222 result = SubmitOrSend(op, opts)
1225 ToStdout("Modified instance %s", args[0])
1226 for param, data in result:
1227 ToStdout(" - %-5s -> %s", param, data)
1228 ToStdout("Please don't forget that these parameters take effect"
1229 " only at the next start of the instance.")
1233 # multi-instance selection options
1234 m_force_multi = cli_option("--force-multiple", dest="force_multi",
1235 help="Do not ask for confirmation when more than"
1236 " one instance is affected",
1237 action="store_true", default=False)
1239 m_pri_node_opt = cli_option("--primary", dest="multi_mode",
1240 help="Filter by nodes (primary only)",
1241 const=_SHUTDOWN_NODES_PRI, action="store_const")
1243 m_sec_node_opt = cli_option("--secondary", dest="multi_mode",
1244 help="Filter by nodes (secondary only)",
1245 const=_SHUTDOWN_NODES_SEC, action="store_const")
1247 m_node_opt = cli_option("--node", dest="multi_mode",
1248 help="Filter by nodes (primary and secondary)",
1249 const=_SHUTDOWN_NODES_BOTH, action="store_const")
1251 m_clust_opt = cli_option("--all", dest="multi_mode",
1252 help="Select all instances in the cluster",
1253 const=_SHUTDOWN_CLUSTER, action="store_const")
1255 m_inst_opt = cli_option("--instance", dest="multi_mode",
1256 help="Filter by instance name [default]",
1257 const=_SHUTDOWN_INSTANCES, action="store_const")
1260 # this is defined separately due to readability only
1266 FILESTORE_DRIVER_OPT,
1283 AddInstance, [ArgHost(min=1, max=1)], add_opts,
1284 "[...] -t disk-type -n node[:secondary-node] -o os-type <name>",
1285 "Creates and adds a new instance to the cluster"),
1287 BatchCreate, [ArgFile(min=1, max=1)], [],
1289 "Create a bunch of instances based on specs in the file."),
1291 ConnectToInstanceConsole, ARGS_ONE_INSTANCE,
1293 "[--show-cmd] <instance>", "Opens a console on the specified instance"),
1295 FailoverInstance, ARGS_ONE_INSTANCE,
1296 [FORCE_OPT, IGNORE_CONSIST_OPT, SUBMIT_OPT, SHUTDOWN_TIMEOUT_OPT],
1297 "[-f] <instance>", "Stops the instance and starts it on the backup node,"
1298 " using the remote mirror (only for instances of type drbd)"),
1300 MigrateInstance, ARGS_ONE_INSTANCE,
1301 [FORCE_OPT, NONLIVE_OPT, CLEANUP_OPT],
1302 "[-f] <instance>", "Migrate instance to its secondary node"
1303 " (only for instances of type drbd)"),
1305 MoveInstance, ARGS_ONE_INSTANCE,
1306 [FORCE_OPT, SUBMIT_OPT, SINGLE_NODE_OPT, SHUTDOWN_TIMEOUT_OPT],
1307 "[-f] <instance>", "Move instance to an arbitrary node"
1308 " (only for instances of type file and lv)"),
1310 ShowInstanceConfig, ARGS_MANY_INSTANCES,
1311 [STATIC_OPT, ALL_OPT],
1312 "[-s] {--all | <instance>...}",
1313 "Show information on the specified instance(s)"),
1315 ListInstances, ARGS_MANY_INSTANCES,
1316 [NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, SYNC_OPT],
1318 "Lists the instances and their status. The available fields are"
1319 " (see the man page for details): status, oper_state, oper_ram,"
1320 " name, os, pnode, snodes, admin_state, admin_ram, disk_template,"
1321 " ip, mac, mode, link, sda_size, sdb_size, vcpus, serial_no,"
1323 " The default field"
1324 " list is (in order): %s." % ", ".join(_LIST_DEF_FIELDS),
1327 ReinstallInstance, [ArgInstance()],
1328 [FORCE_OPT, OS_OPT, FORCE_VARIANT_OPT, m_force_multi, m_node_opt,
1329 m_pri_node_opt, m_sec_node_opt, m_clust_opt, m_inst_opt, SELECT_OS_OPT,
1331 "[-f] <instance>", "Reinstall a stopped instance"),
1333 RemoveInstance, ARGS_ONE_INSTANCE,
1334 [FORCE_OPT, SHUTDOWN_TIMEOUT_OPT, IGNORE_FAILURES_OPT, SUBMIT_OPT],
1335 "[-f] <instance>", "Shuts down the instance and removes it"),
1338 [ArgInstance(min=1, max=1), ArgHost(min=1, max=1)],
1339 [NOIPCHECK_OPT, SUBMIT_OPT],
1340 "<instance> <new_name>", "Rename the instance"),
1342 ReplaceDisks, ARGS_ONE_INSTANCE,
1343 [AUTO_REPLACE_OPT, DISKIDX_OPT, IALLOCATOR_OPT,
1344 NEW_SECONDARY_OPT, ON_PRIMARY_OPT, ON_SECONDARY_OPT, SUBMIT_OPT],
1345 "[-s|-p|-n NODE|-I NAME] <instance>",
1346 "Replaces all disks for the instance"),
1348 SetInstanceParams, ARGS_ONE_INSTANCE,
1349 [BACKEND_OPT, DISK_OPT, FORCE_OPT, HVOPTS_OPT, NET_OPT, SUBMIT_OPT],
1350 "<instance>", "Alters the parameters of an instance"),
1352 GenericManyOps("shutdown", _ShutdownInstance), [ArgInstance()],
1353 [m_node_opt, m_pri_node_opt, m_sec_node_opt, m_clust_opt,
1354 m_inst_opt, m_force_multi, TIMEOUT_OPT, SUBMIT_OPT],
1355 "<instance>", "Stops an instance"),
1357 GenericManyOps("startup", _StartupInstance), [ArgInstance()],
1358 [FORCE_OPT, m_force_multi, m_node_opt, m_pri_node_opt,
1359 m_sec_node_opt, m_clust_opt, m_inst_opt, SUBMIT_OPT, HVOPTS_OPT,
1361 "<instance>", "Starts an instance"),
1363 GenericManyOps("reboot", _RebootInstance), [ArgInstance()],
1364 [m_force_multi, REBOOT_TYPE_OPT, IGNORE_SECONDARIES_OPT, m_node_opt,
1365 m_pri_node_opt, m_sec_node_opt, m_clust_opt, m_inst_opt, SUBMIT_OPT,
1366 SHUTDOWN_TIMEOUT_OPT],
1367 "<instance>", "Reboots an instance"),
1369 ActivateDisks, ARGS_ONE_INSTANCE, [SUBMIT_OPT, IGNORE_SIZE_OPT],
1370 "<instance>", "Activate an instance's disks"),
1371 'deactivate-disks': (
1372 DeactivateDisks, ARGS_ONE_INSTANCE, [SUBMIT_OPT],
1373 "<instance>", "Deactivate an instance's disks"),
1375 RecreateDisks, ARGS_ONE_INSTANCE, [SUBMIT_OPT, DISKIDX_OPT],
1376 "<instance>", "Recreate an instance's disks"),
1379 [ArgInstance(min=1, max=1), ArgUnknown(min=1, max=1),
1380 ArgUnknown(min=1, max=1)],
1381 [SUBMIT_OPT, NWSYNC_OPT],
1382 "<instance> <disk> <size>", "Grow an instance's disk"),
1384 ListTags, ARGS_ONE_INSTANCE, [],
1385 "<instance_name>", "List the tags of the given instance"),
1387 AddTags, [ArgInstance(min=1, max=1), ArgUnknown()],
1389 "<instance_name> tag...", "Add tags to the given instance"),
1391 RemoveTags, [ArgInstance(min=1, max=1), ArgUnknown()],
1393 "<instance_name> tag...", "Remove tags from given instance"),
1396 #: dictionary with aliases for commands
1398 'activate_block_devs': 'activate-disks',
1399 'replace_disks': 'replace-disks',
1405 if __name__ == '__main__':
1406 sys.exit(GenericMain(commands, aliases=aliases,
1407 override={"tag_type": constants.TAG_INSTANCE}))