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",
205 "sda_size": "Disk/0", "sdb_size": "Disk/1",
206 "disk_usage": "DiskUsage",
207 "status": "Status", "tags": "Tags",
208 "network_port": "Network_port",
209 "hv/kernel_path": "Kernel_path",
210 "hv/initrd_path": "Initrd_path",
211 "hv/boot_order": "HVM_boot_order",
212 "hv/acpi": "HVM_ACPI",
214 "hv/cdrom_image_path": "HVM_CDROM_image_path",
215 "hv/nic_type": "HVM_NIC_type",
216 "hv/disk_type": "HVM_Disk_type",
217 "hv/vnc_bind_address": "VNC_bind_address",
218 "serial_no": "SerialNo", "hypervisor": "Hypervisor",
219 "hvparams": "Hypervisor_parameters",
220 "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.bridges": "NIC_bridges", "nic.macs": "NIC_MACs",
231 unitfields = ["be/memory", "oper_ram", "sd(a|b)_size", "disk\.size/.*"]
232 numfields = ["be/memory", "oper_ram", "sd(a|b)_size", "be/vcpus",
233 "serial_no", "(disk|nic)\.count", "disk\.size/.*"]
235 list_type_fields = ("tags", "disk.sizes",
236 "nic.macs", "nic.ips", "nic.bridges")
237 # change raw values to nicer strings
239 for idx, field in enumerate(selected_fields):
241 if field == "snodes":
242 val = ",".join(val) or "-"
243 elif field == "admin_state":
248 elif field == "oper_state":
255 elif field == "oper_ram":
258 elif field == "sda_size" or field == "sdb_size":
261 elif field in list_type_fields:
262 val = ",".join(str(item) for item in val)
267 data = GenerateTable(separator=opts.separator, headers=headers,
268 fields=selected_fields, unitfields=unitfields,
269 numfields=numfields, data=output, units=opts.units)
277 def AddInstance(opts, args):
278 """Add an instance to the cluster.
280 @param opts: the command line options selected by the user
282 @param args: should contain only one element, the new instance name
284 @return: the desired exit code
289 (pnode, snode) = SplitNodeOption(opts.node)
294 hypervisor, hvparams = opts.hypervisor
298 nic_max = max(int(nidx[0])+1 for nidx in opts.nics)
299 except ValueError, err:
300 raise errors.OpPrereqError("Invalid NIC index passed: %s" % str(err))
301 nics = [{}] * nic_max
302 for nidx, ndict in opts.nics:
309 # default of one nic, all auto
312 if opts.disk_template == constants.DT_DISKLESS:
313 if opts.disks or opts.sd_size is not None:
314 raise errors.OpPrereqError("Diskless instance but disk"
315 " information passed")
318 if not opts.disks and not opts.sd_size:
319 raise errors.OpPrereqError("No disk information specified")
320 if opts.disks and opts.sd_size is not None:
321 raise errors.OpPrereqError("Please use either the '--disk' or"
323 if opts.sd_size is not None:
324 opts.disks = [(0, {"size": opts.sd_size})]
326 disk_max = max(int(didx[0])+1 for didx in opts.disks)
327 except ValueError, err:
328 raise errors.OpPrereqError("Invalid disk index passed: %s" % str(err))
329 disks = [{}] * disk_max
330 for didx, ddict in opts.disks:
332 if "size" not in ddict:
333 raise errors.OpPrereqError("Missing size for disk %d" % didx)
335 ddict["size"] = utils.ParseUnit(ddict["size"])
336 except ValueError, err:
337 raise errors.OpPrereqError("Invalid disk size for disk %d: %s" %
341 utils.ForceDictType(opts.beparams, constants.BES_PARAMETER_TYPES)
342 utils.ForceDictType(hvparams, constants.HVS_PARAMETER_TYPES)
344 op = opcodes.OpCreateInstance(instance_name=instance,
346 disk_template=opts.disk_template,
348 mode=constants.INSTANCE_CREATE,
349 os_type=opts.os, pnode=pnode,
351 start=opts.start, ip_check=opts.ip_check,
352 wait_for_sync=opts.wait_for_sync,
353 hypervisor=hypervisor,
355 beparams=opts.beparams,
356 iallocator=opts.iallocator,
357 file_storage_dir=opts.file_storage_dir,
358 file_driver=opts.file_driver,
361 SubmitOrSend(op, opts)
365 def BatchCreate(opts, args):
366 """Create instances using a definition file.
368 This function reads a json file with instances defined
372 "disk_size": [20480],
378 "primary_node": "firstnode",
379 "secondary_node": "secondnode",
380 "iallocator": "dumb"}
383 Note that I{primary_node} and I{secondary_node} have precedence over
386 @param opts: the command line options selected by the user
388 @param args: should contain one element, the json filename
390 @return: the desired exit code
393 _DEFAULT_SPECS = {"disk_size": [20 * 1024],
396 "primary_node": None,
397 "secondary_node": None,
405 "file_storage_dir": None,
406 "file_driver": 'loop'}
408 def _PopulateWithDefaults(spec):
409 """Returns a new hash combined with default values."""
410 mydict = _DEFAULT_SPECS.copy()
415 """Validate the instance specs."""
416 # Validate fields required under any circumstances
417 for required_field in ('os', 'template'):
418 if required_field not in spec:
419 raise errors.OpPrereqError('Required field "%s" is missing.' %
421 # Validate special fields
422 if spec['primary_node'] is not None:
423 if (spec['template'] in constants.DTS_NET_MIRROR and
424 spec['secondary_node'] is None):
425 raise errors.OpPrereqError('Template requires secondary node, but'
426 ' there was no secondary provided.')
427 elif spec['iallocator'] is None:
428 raise errors.OpPrereqError('You have to provide at least a primary_node'
429 ' or an iallocator.')
431 if (spec['hvparams'] and
432 not isinstance(spec['hvparams'], dict)):
433 raise errors.OpPrereqError('Hypervisor parameters must be a dict.')
435 json_filename = args[0]
437 fd = open(json_filename, 'r')
438 instance_data = simplejson.load(fd)
440 except Exception, err:
441 ToStderr("Can't parse the instance definition file: %s" % str(err))
446 # Iterate over the instances and do:
447 # * Populate the specs with default value
448 # * Validate the instance specs
449 i_names = utils.NiceSort(instance_data.keys())
451 specs = instance_data[name]
452 specs = _PopulateWithDefaults(specs)
455 hypervisor = specs['hypervisor']
456 hvparams = specs['hvparams']
459 for elem in specs['disk_size']:
461 size = utils.ParseUnit(elem)
462 except ValueError, err:
463 raise errors.OpPrereqError("Invalid disk size '%s' for"
466 disks.append({"size": size})
468 nic0 = {'ip': specs['ip'], 'bridge': specs['bridge'], 'mac': specs['mac']}
470 utils.ForceDictType(specs['backend'], constants.BES_PARAMETER_TYPES)
471 utils.ForceDictType(hvparams, constants.HVS_PARAMETER_TYPES)
473 op = opcodes.OpCreateInstance(instance_name=name,
475 disk_template=specs['template'],
476 mode=constants.INSTANCE_CREATE,
478 pnode=specs['primary_node'],
479 snode=specs['secondary_node'],
481 start=specs['start'],
482 ip_check=specs['ip_check'],
484 iallocator=specs['iallocator'],
485 hypervisor=hypervisor,
487 beparams=specs['backend'],
488 file_storage_dir=specs['file_storage_dir'],
489 file_driver=specs['file_driver'])
491 jex.QueueJob(name, op)
492 # we never want to wait, just show the submitted job IDs
493 jex.WaitOrShow(False)
498 def ReinstallInstance(opts, args):
499 """Reinstall an instance.
501 @param opts: the command line options selected by the user
503 @param args: should contain only one element, the name of the
504 instance to be reinstalled
506 @return: the desired exit code
509 # first, compute the desired name list
510 if opts.multi_mode is None:
511 opts.multi_mode = _SHUTDOWN_INSTANCES
513 inames = _ExpandMultiNames(opts.multi_mode, args)
515 raise errors.OpPrereqError("Selection filter does not match any instances")
517 # second, if requested, ask for an OS
518 if opts.select_os is True:
519 op = opcodes.OpDiagnoseOS(output_fields=["name", "valid"], names=[])
520 result = SubmitOpCode(op)
523 ToStdout("Can't get the OS list")
526 ToStdout("Available OS templates:")
530 ToStdout("%3s: %s", number, entry[0])
531 choices.append(("%s" % number, entry[0], entry[0]))
534 choices.append(('x', 'exit', 'Exit gnt-instance reinstall'))
535 selected = AskUser("Enter OS template number (or x to abort):",
538 if selected == 'exit':
539 ToStderr("User aborted reinstall, exiting")
546 # third, get confirmation: multi-reinstall requires --force-multi
547 # *and* --force, single-reinstall just --force
548 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
550 warn_msg = "Note: this will remove *all* data for the below instances!\n"
551 if not ((opts.force_multi and opts.force) or
552 _ConfirmOperation(inames, "reinstall", extra=warn_msg)):
556 usertext = ("This will reinstall the instance %s and remove"
557 " all data. Continue?") % instance_name
558 if not AskUser(usertext):
561 jex = JobExecutor(verbose=multi_on)
562 for instance_name in inames:
563 op = opcodes.OpReinstallInstance(instance_name=instance_name,
565 jex.QueueJob(instance_name, op)
567 jex.WaitOrShow(not opts.submit_only)
571 def RemoveInstance(opts, args):
572 """Remove an instance.
574 @param opts: the command line options selected by the user
576 @param args: should contain only one element, the name of
577 the instance to be removed
579 @return: the desired exit code
582 instance_name = args[0]
587 _EnsureInstancesExist(cl, [instance_name])
589 usertext = ("This will remove the volumes of the instance %s"
590 " (including mirrors), thus removing all the data"
591 " of the instance. Continue?") % instance_name
592 if not AskUser(usertext):
595 op = opcodes.OpRemoveInstance(instance_name=instance_name,
596 ignore_failures=opts.ignore_failures)
597 SubmitOrSend(op, opts, cl=cl)
601 def RenameInstance(opts, args):
602 """Rename an instance.
604 @param opts: the command line options selected by the user
606 @param args: should contain two elements, the old and the
609 @return: the desired exit code
612 op = opcodes.OpRenameInstance(instance_name=args[0],
614 ignore_ip=opts.ignore_ip)
615 SubmitOrSend(op, opts)
619 def ActivateDisks(opts, args):
620 """Activate an instance's disks.
622 This serves two purposes:
623 - it allows (as long as the instance is not running)
624 mounting the disks and modifying them from the node
625 - it repairs inactive secondary drbds
627 @param opts: the command line options selected by the user
629 @param args: should contain only one element, the instance name
631 @return: the desired exit code
634 instance_name = args[0]
635 op = opcodes.OpActivateInstanceDisks(instance_name=instance_name)
636 disks_info = SubmitOrSend(op, opts)
637 for host, iname, nname in disks_info:
638 ToStdout("%s:%s:%s", host, iname, nname)
642 def DeactivateDisks(opts, args):
643 """Deactivate an instance's disks..
645 This function takes the instance name, looks for its primary node
646 and the tries to shutdown its block devices on that node.
648 @param opts: the command line options selected by the user
650 @param args: should contain only one element, the instance name
652 @return: the desired exit code
655 instance_name = args[0]
656 op = opcodes.OpDeactivateInstanceDisks(instance_name=instance_name)
657 SubmitOrSend(op, opts)
661 def GrowDisk(opts, args):
662 """Grow an instance's disks.
664 @param opts: the command line options selected by the user
666 @param args: should contain two elements, the instance name
667 whose disks we grow and the disk name, e.g. I{sda}
669 @return: the desired exit code
676 except ValueError, err:
677 raise errors.OpPrereqError("Invalid disk index: %s" % str(err))
678 amount = utils.ParseUnit(args[2])
679 op = opcodes.OpGrowDisk(instance_name=instance, disk=disk, amount=amount,
680 wait_for_sync=opts.wait_for_sync)
681 SubmitOrSend(op, opts)
685 def StartupInstance(opts, args):
686 """Startup instances.
688 Depending on the options given, this will start one or more
691 @param opts: the command line options selected by the user
693 @param args: the instance or node names based on which we
694 create the final selection (in conjunction with the
697 @return: the desired exit code
701 if opts.multi_mode is None:
702 opts.multi_mode = _SHUTDOWN_INSTANCES
703 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
705 raise errors.OpPrereqError("Selection filter does not match any instances")
706 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
707 if not (opts.force_multi or not multi_on
708 or _ConfirmOperation(inames, "startup")):
710 jex = cli.JobExecutor(verbose=multi_on, cl=cl)
712 op = opcodes.OpStartupInstance(instance_name=name,
714 # do not add these parameters to the opcode unless they're defined
716 op.hvparams = opts.hvparams
718 op.beparams = opts.beparams
719 jex.QueueJob(name, op)
720 jex.WaitOrShow(not opts.submit_only)
724 def RebootInstance(opts, args):
725 """Reboot instance(s).
727 Depending on the parameters given, this will reboot one or more
730 @param opts: the command line options selected by the user
732 @param args: the instance or node names based on which we
733 create the final selection (in conjunction with the
736 @return: the desired exit code
740 if opts.multi_mode is None:
741 opts.multi_mode = _SHUTDOWN_INSTANCES
742 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
744 raise errors.OpPrereqError("Selection filter does not match any instances")
745 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
746 if not (opts.force_multi or not multi_on
747 or _ConfirmOperation(inames, "reboot")):
749 jex = JobExecutor(verbose=multi_on, cl=cl)
751 op = opcodes.OpRebootInstance(instance_name=name,
752 reboot_type=opts.reboot_type,
753 ignore_secondaries=opts.ignore_secondaries)
754 jex.QueueJob(name, op)
755 jex.WaitOrShow(not opts.submit_only)
759 def ShutdownInstance(opts, args):
760 """Shutdown an instance.
762 @param opts: the command line options selected by the user
764 @param args: the instance or node names based on which we
765 create the final selection (in conjunction with the
768 @return: the desired exit code
772 if opts.multi_mode is None:
773 opts.multi_mode = _SHUTDOWN_INSTANCES
774 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
776 raise errors.OpPrereqError("Selection filter does not match any instances")
777 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
778 if not (opts.force_multi or not multi_on
779 or _ConfirmOperation(inames, "shutdown")):
782 jex = cli.JobExecutor(verbose=multi_on, cl=cl)
784 op = opcodes.OpShutdownInstance(instance_name=name)
785 jex.QueueJob(name, op)
786 jex.WaitOrShow(not opts.submit_only)
790 def ReplaceDisks(opts, args):
791 """Replace the disks of an instance
793 @param opts: the command line options selected by the user
795 @param args: should contain only one element, the instance name
797 @return: the desired exit code
800 instance_name = args[0]
801 new_2ndary = opts.new_secondary
802 iallocator = opts.iallocator
803 if opts.disks is None:
807 disks = [int(i) for i in opts.disks.split(",")]
808 except ValueError, err:
809 raise errors.OpPrereqError("Invalid disk index passed: %s" % str(err))
810 cnt = [opts.on_primary, opts.on_secondary,
811 new_2ndary is not None, iallocator is not None].count(True)
813 raise errors.OpPrereqError("One and only one of the -p, -s, -n and -i"
814 " options must be passed")
815 elif opts.on_primary:
816 mode = constants.REPLACE_DISK_PRI
817 elif opts.on_secondary:
818 mode = constants.REPLACE_DISK_SEC
819 elif new_2ndary is not None or iallocator is not None:
821 mode = constants.REPLACE_DISK_CHG
823 op = opcodes.OpReplaceDisks(instance_name=args[0], disks=disks,
824 remote_node=new_2ndary, mode=mode,
825 iallocator=iallocator)
826 SubmitOrSend(op, opts)
830 def FailoverInstance(opts, args):
831 """Failover an instance.
833 The failover is done by shutting it down on its present node and
834 starting it on the secondary.
836 @param opts: the command line options selected by the user
838 @param args: should contain only one element, the instance name
840 @return: the desired exit code
844 instance_name = args[0]
848 _EnsureInstancesExist(cl, [instance_name])
850 usertext = ("Failover will happen to image %s."
851 " This requires a shutdown of the instance. Continue?" %
853 if not AskUser(usertext):
856 op = opcodes.OpFailoverInstance(instance_name=instance_name,
857 ignore_consistency=opts.ignore_consistency)
858 SubmitOrSend(op, opts, cl=cl)
862 def MigrateInstance(opts, args):
863 """Migrate an instance.
865 The migrate is done without shutdown.
867 @param opts: the command line options selected by the user
869 @param args: should contain only one element, the instance name
871 @return: the desired exit code
875 instance_name = args[0]
879 _EnsureInstancesExist(cl, [instance_name])
882 usertext = ("Instance %s will be recovered from a failed migration."
883 " Note that the migration procedure (including cleanup)" %
886 usertext = ("Instance %s will be migrated. Note that migration" %
888 usertext += (" is **experimental** in this version."
889 " This might impact the instance if anything goes wrong."
891 if not AskUser(usertext):
894 op = opcodes.OpMigrateInstance(instance_name=instance_name, live=opts.live,
895 cleanup=opts.cleanup)
896 SubmitOpCode(op, cl=cl)
900 def ConnectToInstanceConsole(opts, args):
901 """Connect to the console of an instance.
903 @param opts: the command line options selected by the user
905 @param args: should contain only one element, the instance name
907 @return: the desired exit code
910 instance_name = args[0]
912 op = opcodes.OpConnectConsole(instance_name=instance_name)
913 cmd = SubmitOpCode(op)
915 if opts.show_command:
916 ToStdout("%s", utils.ShellQuoteArgs(cmd))
919 os.execvp(cmd[0], cmd)
921 ToStderr("Can't run console command %s with arguments:\n'%s'",
922 cmd[0], " ".join(cmd))
926 def _FormatLogicalID(dev_type, logical_id):
927 """Formats the logical_id of a disk.
930 if dev_type == constants.LD_DRBD8:
931 node_a, node_b, port, minor_a, minor_b, key = logical_id
933 ("nodeA", "%s, minor=%s" % (node_a, minor_a)),
934 ("nodeB", "%s, minor=%s" % (node_b, minor_b)),
938 elif dev_type == constants.LD_LV:
939 vg_name, lv_name = logical_id
940 data = ["%s/%s" % (vg_name, lv_name)]
942 data = [str(logical_id)]
947 def _FormatBlockDevInfo(idx, top_level, dev, static):
948 """Show block device information.
950 This is only used by L{ShowInstanceConfig}, but it's too big to be
951 left for an inline definition.
954 @param idx: the index of the current disk
955 @type top_level: boolean
956 @param top_level: if this a top-level disk?
958 @param dev: dictionary with disk information
959 @type static: boolean
960 @param static: wheter the device information doesn't contain
961 runtime information but only static data
962 @return: a list of either strings, tuples or lists
963 (which should be formatted at a higher indent level)
966 def helper(dtype, status):
967 """Format one line for physical device status.
970 @param dtype: a constant from the L{constants.LDS_BLOCK} set
972 @param status: a tuple as returned from L{backend.FindBlockDevice}
973 @return: the string representing the status
979 (path, major, minor, syncp, estt, degr, ldisk) = status
983 major_string = str(major)
988 minor_string = str(minor)
990 txt += ("%s (%s:%s)" % (path, major_string, minor_string))
991 if dtype in (constants.LD_DRBD8, ):
992 if syncp is not None:
993 sync_text = "*RECOVERING* %5.2f%%," % syncp
995 sync_text += " ETA %ds" % estt
997 sync_text += " ETA unknown"
999 sync_text = "in sync"
1001 degr_text = "*DEGRADED*"
1005 ldisk_text = " *MISSING DISK*"
1008 txt += (" %s, status %s%s" % (sync_text, degr_text, ldisk_text))
1009 elif dtype == constants.LD_LV:
1011 ldisk_text = " *FAILED* (failed drive?)"
1019 if dev["iv_name"] is not None:
1020 txt = dev["iv_name"]
1022 txt = "disk %d" % idx
1024 txt = "child %d" % idx
1025 if isinstance(dev["size"], int):
1026 nice_size = utils.FormatUnit(dev["size"], "h")
1028 nice_size = dev["size"]
1029 d1 = ["- %s: %s, size %s" % (txt, dev["dev_type"], nice_size)]
1032 data.append(("access mode", dev["mode"]))
1033 if dev["logical_id"] is not None:
1035 l_id = _FormatLogicalID(dev["dev_type"], dev["logical_id"])
1037 l_id = [str(dev["logical_id"])]
1039 data.append(("logical_id", l_id[0]))
1042 elif dev["physical_id"] is not None:
1043 data.append("physical_id:")
1044 data.append([dev["physical_id"]])
1046 data.append(("on primary", helper(dev["dev_type"], dev["pstatus"])))
1047 if dev["sstatus"] and not static:
1048 data.append(("on secondary", helper(dev["dev_type"], dev["sstatus"])))
1051 data.append("child devices:")
1052 for c_idx, child in enumerate(dev["children"]):
1053 data.append(_FormatBlockDevInfo(c_idx, False, child, static))
1058 def _FormatList(buf, data, indent_level):
1059 """Formats a list of data at a given indent level.
1061 If the element of the list is:
1062 - a string, it is simply formatted as is
1063 - a tuple, it will be split into key, value and the all the
1064 values in a list will be aligned all at the same start column
1065 - a list, will be recursively formatted
1068 @param buf: the buffer into which we write the output
1069 @param data: the list to format
1070 @type indent_level: int
1071 @param indent_level: the indent level to format at
1074 max_tlen = max([len(elem[0]) for elem in data
1075 if isinstance(elem, tuple)] or [0])
1077 if isinstance(elem, basestring):
1078 buf.write("%*s%s\n" % (2*indent_level, "", elem))
1079 elif isinstance(elem, tuple):
1081 spacer = "%*s" % (max_tlen - len(key), "")
1082 buf.write("%*s%s:%s %s\n" % (2*indent_level, "", key, spacer, value))
1083 elif isinstance(elem, list):
1084 _FormatList(buf, elem, indent_level+1)
1086 def ShowInstanceConfig(opts, args):
1087 """Compute instance run-time status.
1089 @param opts: the command line options selected by the user
1091 @param args: either an empty list, and then we query all
1092 instances, or should contain a list of instance names
1094 @return: the desired exit code
1097 if not args and not opts.show_all:
1098 ToStderr("No instance selected."
1099 " Please pass in --all if you want to query all instances.\n"
1100 "Note that this can take a long time on a big cluster.")
1102 elif args and opts.show_all:
1103 ToStderr("Cannot use --all if you specify instance names.")
1107 op = opcodes.OpQueryInstanceData(instances=args, static=opts.static)
1108 result = SubmitOpCode(op)
1110 ToStdout("No instances.")
1115 for instance_name in result:
1116 instance = result[instance_name]
1117 buf.write("Instance name: %s\n" % instance["name"])
1118 buf.write("State: configured to be %s" % instance["config_state"])
1120 buf.write(", actual state is %s" % instance["run_state"])
1122 ##buf.write("Considered for memory checks in cluster verify: %s\n" %
1123 ## instance["auto_balance"])
1124 buf.write(" Nodes:\n")
1125 buf.write(" - primary: %s\n" % instance["pnode"])
1126 buf.write(" - secondaries: %s\n" % ", ".join(instance["snodes"]))
1127 buf.write(" Operating system: %s\n" % instance["os"])
1128 if instance.has_key("network_port"):
1129 buf.write(" Allocated network port: %s\n" % instance["network_port"])
1130 buf.write(" Hypervisor: %s\n" % instance["hypervisor"])
1132 # custom VNC console information
1133 vnc_bind_address = instance["hv_actual"].get(constants.HV_VNC_BIND_ADDRESS,
1135 if vnc_bind_address:
1136 port = instance["network_port"]
1137 display = int(port) - constants.VNC_BASE_PORT
1138 if display > 0 and vnc_bind_address == constants.BIND_ADDRESS_GLOBAL:
1139 vnc_console_port = "%s:%s (display %s)" % (instance["pnode"],
1142 elif display > 0 and utils.IsValidIP(vnc_bind_address):
1143 vnc_console_port = ("%s:%s (node %s) (display %s)" %
1144 (vnc_bind_address, port,
1145 instance["pnode"], display))
1147 # vnc bind address is a file
1148 vnc_console_port = "%s:%s" % (instance["pnode"],
1150 buf.write(" - console connection: vnc to %s\n" % vnc_console_port)
1152 for key in instance["hv_actual"]:
1153 if key in instance["hv_instance"]:
1154 val = instance["hv_instance"][key]
1156 val = "default (%s)" % instance["hv_actual"][key]
1157 buf.write(" - %s: %s\n" % (key, val))
1158 buf.write(" Hardware:\n")
1159 buf.write(" - VCPUs: %d\n" %
1160 instance["be_actual"][constants.BE_VCPUS])
1161 buf.write(" - memory: %dMiB\n" %
1162 instance["be_actual"][constants.BE_MEMORY])
1163 buf.write(" - NICs:\n")
1164 for idx, (mac, ip, bridge) in enumerate(instance["nics"]):
1165 buf.write(" - nic/%d: MAC: %s, IP: %s, bridge: %s\n" %
1166 (idx, mac, ip, bridge))
1167 buf.write(" Disks:\n")
1169 for idx, device in enumerate(instance["disks"]):
1170 _FormatList(buf, _FormatBlockDevInfo(idx, True, device, opts.static), 2)
1172 ToStdout(buf.getvalue().rstrip('\n'))
1176 def SetInstanceParams(opts, args):
1177 """Modifies an instance.
1179 All parameters take effect only at the next restart of the instance.
1181 @param opts: the command line options selected by the user
1183 @param args: should contain only one element, the instance name
1185 @return: the desired exit code
1188 if not (opts.nics or opts.disks or
1189 opts.hypervisor or opts.beparams):
1190 ToStderr("Please give at least one of the parameters.")
1193 for param in opts.beparams:
1194 if isinstance(opts.beparams[param], basestring):
1195 if opts.beparams[param].lower() == "default":
1196 opts.beparams[param] = constants.VALUE_DEFAULT
1198 utils.ForceDictType(opts.beparams, constants.BES_PARAMETER_TYPES,
1199 allowed_values=[constants.VALUE_DEFAULT])
1201 for param in opts.hypervisor:
1202 if isinstance(opts.hypervisor[param], basestring):
1203 if opts.hypervisor[param].lower() == "default":
1204 opts.hypervisor[param] = constants.VALUE_DEFAULT
1206 utils.ForceDictType(opts.hypervisor, constants.HVS_PARAMETER_TYPES,
1207 allowed_values=[constants.VALUE_DEFAULT])
1209 for idx, (nic_op, nic_dict) in enumerate(opts.nics):
1211 nic_op = int(nic_op)
1212 opts.nics[idx] = (nic_op, nic_dict)
1216 for idx, (disk_op, disk_dict) in enumerate(opts.disks):
1218 disk_op = int(disk_op)
1219 opts.disks[idx] = (disk_op, disk_dict)
1222 if disk_op == constants.DDM_ADD:
1223 if 'size' not in disk_dict:
1224 raise errors.OpPrereqError("Missing required parameter 'size'")
1225 disk_dict['size'] = utils.ParseUnit(disk_dict['size'])
1227 op = opcodes.OpSetInstanceParams(instance_name=args[0],
1230 hvparams=opts.hypervisor,
1231 beparams=opts.beparams,
1234 # even if here we process the result, we allow submit only
1235 result = SubmitOrSend(op, opts)
1238 ToStdout("Modified instance %s", args[0])
1239 for param, data in result:
1240 ToStdout(" - %-5s -> %s", param, data)
1241 ToStdout("Please don't forget that these parameters take effect"
1242 " only at the next start of the instance.")
1246 # options used in more than one cmd
1247 node_opt = make_option("-n", "--node", dest="node", help="Target node",
1250 os_opt = cli_option("-o", "--os-type", dest="os", help="What OS to run",
1253 # multi-instance selection options
1254 m_force_multi = make_option("--force-multiple", dest="force_multi",
1255 help="Do not ask for confirmation when more than"
1256 " one instance is affected",
1257 action="store_true", default=False)
1259 m_pri_node_opt = make_option("--primary", dest="multi_mode",
1260 help="Filter by nodes (primary only)",
1261 const=_SHUTDOWN_NODES_PRI, action="store_const")
1263 m_sec_node_opt = make_option("--secondary", dest="multi_mode",
1264 help="Filter by nodes (secondary only)",
1265 const=_SHUTDOWN_NODES_SEC, action="store_const")
1267 m_node_opt = make_option("--node", dest="multi_mode",
1268 help="Filter by nodes (primary and secondary)",
1269 const=_SHUTDOWN_NODES_BOTH, action="store_const")
1271 m_clust_opt = make_option("--all", dest="multi_mode",
1272 help="Select all instances in the cluster",
1273 const=_SHUTDOWN_CLUSTER, action="store_const")
1275 m_inst_opt = make_option("--instance", dest="multi_mode",
1276 help="Filter by instance name [default]",
1277 const=_SHUTDOWN_INSTANCES, action="store_const")
1280 # this is defined separately due to readability only
1283 make_option("-n", "--node", dest="node",
1284 help="Target node and optional secondary node",
1285 metavar="<pnode>[:<snode>]"),
1287 keyval_option("-B", "--backend", dest="beparams",
1288 type="keyval", default={},
1289 help="Backend parameters"),
1290 make_option("-t", "--disk-template", dest="disk_template",
1291 help="Custom disk setup (diskless, file, plain or drbd)",
1292 default=None, metavar="TEMPL"),
1293 cli_option("-s", "--os-size", dest="sd_size", help="Disk size for a"
1294 " single-disk configuration, when not using the --disk option,"
1295 " in MiB unless a suffix is used",
1296 default=None, type="unit", metavar="<size>"),
1297 ikv_option("--disk", help="Disk information",
1298 default=[], dest="disks",
1300 type="identkeyval"),
1301 ikv_option("--net", help="NIC information",
1302 default=[], dest="nics",
1304 type="identkeyval"),
1305 make_option("--no-nics", default=False, action="store_true",
1306 help="Do not create any network cards for the instance"),
1307 make_option("--no-wait-for-sync", dest="wait_for_sync", default=True,
1308 action="store_false", help="Don't wait for sync (DANGEROUS!)"),
1309 make_option("--no-start", dest="start", default=True,
1310 action="store_false", help="Don't start the instance after"
1312 make_option("--no-ip-check", dest="ip_check", default=True,
1313 action="store_false", help="Don't check that the instance's IP"
1314 " is alive (only valid with --no-start)"),
1315 make_option("--file-storage-dir", dest="file_storage_dir",
1316 help="Relative path under default cluster-wide file storage dir"
1317 " to store file-based disks", default=None,
1319 make_option("--file-driver", dest="file_driver", help="Driver to use"
1320 " for image files", default="loop", metavar="<DRIVER>"),
1321 make_option("-I", "--iallocator", metavar="<NAME>",
1322 help="Select nodes for the instance automatically using the"
1323 " <NAME> iallocator plugin", default=None, type="string"),
1324 ikv_option("-H", "--hypervisor", dest="hypervisor",
1325 help="Hypervisor and hypervisor options, in the format"
1326 " hypervisor:option=value,option=value,...", default=None,
1327 type="identkeyval"),
1332 'add': (AddInstance, ARGS_ONE, add_opts,
1333 "[...] -t disk-type -n node[:secondary-node] -o os-type <name>",
1334 "Creates and adds a new instance to the cluster"),
1335 'batch-create': (BatchCreate, ARGS_ONE,
1337 "<instances_file.json>",
1338 "Create a bunch of instances based on specs in the file."),
1339 'console': (ConnectToInstanceConsole, ARGS_ONE,
1341 make_option("--show-cmd", dest="show_command",
1342 action="store_true", default=False,
1343 help=("Show command instead of executing it"))],
1344 "[--show-cmd] <instance>",
1345 "Opens a console on the specified instance"),
1346 'failover': (FailoverInstance, ARGS_ONE,
1347 [DEBUG_OPT, FORCE_OPT,
1348 make_option("--ignore-consistency", dest="ignore_consistency",
1349 action="store_true", default=False,
1350 help="Ignore the consistency of the disks on"
1355 "Stops the instance and starts it on the backup node, using"
1356 " the remote mirror (only for instances of type drbd)"),
1357 'migrate': (MigrateInstance, ARGS_ONE,
1358 [DEBUG_OPT, FORCE_OPT,
1359 make_option("--non-live", dest="live",
1360 default=True, action="store_false",
1361 help="Do a non-live migration (this usually means"
1362 " freeze the instance, save the state,"
1363 " transfer and only then resume running on the"
1364 " secondary node)"),
1365 make_option("--cleanup", dest="cleanup",
1366 default=False, action="store_true",
1367 help="Instead of performing the migration, try to"
1368 " recover from a failed cleanup. This is safe"
1369 " to run even if the instance is healthy, but it"
1370 " will create extra replication traffic and "
1371 " disrupt briefly the replication (like during the"
1375 "Migrate instance to its secondary node"
1376 " (only for instances of type drbd)"),
1377 'info': (ShowInstanceConfig, ARGS_ANY,
1379 make_option("-s", "--static", dest="static",
1380 action="store_true", default=False,
1381 help="Only show configuration data, not runtime data"),
1382 make_option("--all", dest="show_all",
1383 default=False, action="store_true",
1384 help="Show info on all instances on the cluster."
1385 " This can take a long time to run, use wisely."),
1386 ], "[-s] {--all | <instance>...}",
1387 "Show information on the specified instance(s)"),
1388 'list': (ListInstances, ARGS_ANY,
1389 [DEBUG_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, SYNC_OPT],
1391 "Lists the instances and their status. The available fields are"
1392 " (see the man page for details): status, oper_state, oper_ram,"
1393 " name, os, pnode, snodes, admin_state, admin_ram, disk_template,"
1394 " ip, mac, bridge, sda_size, sdb_size, vcpus, serial_no,"
1396 " The default field"
1397 " list is (in order): %s." % ", ".join(_LIST_DEF_FIELDS),
1399 'reinstall': (ReinstallInstance, ARGS_ANY,
1400 [DEBUG_OPT, FORCE_OPT, os_opt,
1402 m_node_opt, m_pri_node_opt, m_sec_node_opt,
1403 m_clust_opt, m_inst_opt,
1404 make_option("--select-os", dest="select_os",
1405 action="store_true", default=False,
1406 help="Interactive OS reinstall, lists available"
1407 " OS templates for selection"),
1410 "[-f] <instance>", "Reinstall a stopped instance"),
1411 'remove': (RemoveInstance, ARGS_ONE,
1412 [DEBUG_OPT, FORCE_OPT,
1413 make_option("--ignore-failures", dest="ignore_failures",
1414 action="store_true", default=False,
1415 help=("Remove the instance from the cluster even"
1416 " if there are failures during the removal"
1417 " process (shutdown, disk removal, etc.)")),
1420 "[-f] <instance>", "Shuts down the instance and removes it"),
1421 'rename': (RenameInstance, ARGS_FIXED(2),
1423 make_option("--no-ip-check", dest="ignore_ip",
1424 help="Do not check that the IP of the new name"
1426 default=False, action="store_true"),
1429 "<instance> <new_name>", "Rename the instance"),
1430 'replace-disks': (ReplaceDisks, ARGS_ONE,
1432 make_option("-n", "--new-secondary", dest="new_secondary",
1433 help=("New secondary node (for secondary"
1434 " node change)"), metavar="NODE",
1436 make_option("-p", "--on-primary", dest="on_primary",
1437 default=False, action="store_true",
1438 help=("Replace the disk(s) on the primary"
1439 " node (only for the drbd template)")),
1440 make_option("-s", "--on-secondary", dest="on_secondary",
1441 default=False, action="store_true",
1442 help=("Replace the disk(s) on the secondary"
1443 " node (only for the drbd template)")),
1444 make_option("--disks", dest="disks", default=None,
1445 help="Comma-separated list of disks"
1446 " indices to replace (e.g. 0,2) (optional,"
1447 " defaults to all disks)"),
1448 make_option("-I", "--iallocator", metavar="<NAME>",
1449 help="Select new secondary for the instance"
1450 " automatically using the"
1451 " <NAME> iallocator plugin (enables"
1452 " secondary node replacement)",
1453 default=None, type="string"),
1456 "[-s|-p|-n NODE|-I NAME] <instance>",
1457 "Replaces all disks for the instance"),
1458 'modify': (SetInstanceParams, ARGS_ONE,
1459 [DEBUG_OPT, FORCE_OPT,
1460 keyval_option("-H", "--hypervisor", type="keyval",
1461 default={}, dest="hypervisor",
1462 help="Change hypervisor parameters"),
1463 keyval_option("-B", "--backend", type="keyval",
1464 default={}, dest="beparams",
1465 help="Change backend parameters"),
1466 ikv_option("--disk", help="Disk changes",
1467 default=[], dest="disks",
1469 type="identkeyval"),
1470 ikv_option("--net", help="NIC changes",
1471 default=[], dest="nics",
1473 type="identkeyval"),
1476 "<instance>", "Alters the parameters of an instance"),
1477 'shutdown': (ShutdownInstance, ARGS_ANY,
1478 [DEBUG_OPT, m_node_opt, m_pri_node_opt, m_sec_node_opt,
1479 m_clust_opt, m_inst_opt, m_force_multi,
1482 "<instance>", "Stops an instance"),
1483 'startup': (StartupInstance, ARGS_ANY,
1484 [DEBUG_OPT, FORCE_OPT, m_force_multi,
1485 m_node_opt, m_pri_node_opt, m_sec_node_opt,
1486 m_clust_opt, m_inst_opt,
1488 keyval_option("-H", "--hypervisor", type="keyval",
1489 default={}, dest="hvparams",
1490 help="Temporary hypervisor parameters"),
1491 keyval_option("-B", "--backend", type="keyval",
1492 default={}, dest="beparams",
1493 help="Temporary backend parameters"),
1495 "<instance>", "Starts an instance"),
1497 'reboot': (RebootInstance, ARGS_ANY,
1498 [DEBUG_OPT, m_force_multi,
1499 make_option("-t", "--type", dest="reboot_type",
1500 help="Type of reboot: soft/hard/full",
1501 default=constants.INSTANCE_REBOOT_HARD,
1502 type="string", metavar="<REBOOT>"),
1503 make_option("--ignore-secondaries", dest="ignore_secondaries",
1504 default=False, action="store_true",
1505 help="Ignore errors from secondaries"),
1506 m_node_opt, m_pri_node_opt, m_sec_node_opt,
1507 m_clust_opt, m_inst_opt,
1510 "<instance>", "Reboots an instance"),
1511 'activate-disks': (ActivateDisks, ARGS_ONE, [DEBUG_OPT, SUBMIT_OPT],
1513 "Activate an instance's disks"),
1514 'deactivate-disks': (DeactivateDisks, ARGS_ONE, [DEBUG_OPT, SUBMIT_OPT],
1516 "Deactivate an instance's disks"),
1517 'grow-disk': (GrowDisk, ARGS_FIXED(3),
1518 [DEBUG_OPT, SUBMIT_OPT,
1519 make_option("--no-wait-for-sync",
1520 dest="wait_for_sync", default=True,
1521 action="store_false",
1522 help="Don't wait for sync (DANGEROUS!)"),
1524 "<instance> <disk> <size>", "Grow an instance's disk"),
1525 'list-tags': (ListTags, ARGS_ONE, [DEBUG_OPT],
1526 "<instance_name>", "List the tags of the given instance"),
1527 'add-tags': (AddTags, ARGS_ATLEAST(1), [DEBUG_OPT, TAG_SRC_OPT],
1528 "<instance_name> tag...", "Add tags to the given instance"),
1529 'remove-tags': (RemoveTags, ARGS_ATLEAST(1), [DEBUG_OPT, TAG_SRC_OPT],
1530 "<instance_name> tag...", "Remove tags from given instance"),
1533 #: dictionary with aliases for commands
1535 'activate_block_devs': 'activate-disks',
1536 'replace_disks': 'replace-disks',
1541 if __name__ == '__main__':
1542 sys.exit(GenericMain(commands, aliases=aliases,
1543 override={"tag_type": constants.TAG_INSTANCE}))