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):
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"
137 "Do you want to continue?" % (text, count))
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 _TransformPath(user_input):
158 """Transform a user path into a canonical value.
160 This function transforms the a path passed as textual information
161 into the constants that the LU code expects.
165 if user_input.lower() == "default":
166 result_path = constants.VALUE_DEFAULT
167 elif user_input.lower() == "none":
168 result_path = constants.VALUE_NONE
170 if not os.path.isabs(user_input):
171 raise errors.OpPrereqError("Path '%s' is not an absolute filename" %
173 result_path = user_input
175 result_path = constants.VALUE_DEFAULT
180 def _EnsureInstancesExist(client, names):
181 """Check for and ensure the given instance names exist.
183 This function will raise an OpPrereqError in case they don't
184 exist. Otherwise it will exit cleanly.
186 @type client: L{luxi.Client}
187 @param client: the client to use for the query
189 @param names: the list of instance names to query
190 @raise errors.OpPrereqError: in case any instance is missing
193 # TODO: change LUQueryInstances to that it actually returns None
194 # instead of raising an exception, or devise a better mechanism
195 result = client.QueryInstances(names, ["name"], False)
196 for orig_name, row in zip(names, result):
198 raise errors.OpPrereqError("Instance '%s' does not exist" % orig_name)
201 def ListInstances(opts, args):
202 """List instances and their properties.
204 @param opts: the command line options selected by the user
206 @param args: should be an empty list
208 @return: the desired exit code
211 if opts.output is None:
212 selected_fields = _LIST_DEF_FIELDS
213 elif opts.output.startswith("+"):
214 selected_fields = _LIST_DEF_FIELDS + opts.output[1:].split(",")
216 selected_fields = opts.output.split(",")
218 output = GetClient().QueryInstances(args, selected_fields, opts.do_locking)
220 if not opts.no_headers:
222 "name": "Instance", "os": "OS", "pnode": "Primary_node",
223 "snodes": "Secondary_Nodes", "admin_state": "Autostart",
224 "oper_state": "Running",
225 "oper_ram": "Memory", "disk_template": "Disk_template",
226 "ip": "IP_address", "mac": "MAC_address",
228 "sda_size": "Disk/0", "sdb_size": "Disk/1",
229 "disk_usage": "DiskUsage",
230 "status": "Status", "tags": "Tags",
231 "network_port": "Network_port",
232 "hv/kernel_path": "Kernel_path",
233 "hv/initrd_path": "Initrd_path",
234 "hv/boot_order": "HVM_boot_order",
235 "hv/acpi": "HVM_ACPI",
237 "hv/cdrom_image_path": "HVM_CDROM_image_path",
238 "hv/nic_type": "HVM_NIC_type",
239 "hv/disk_type": "HVM_Disk_type",
240 "hv/vnc_bind_address": "VNC_bind_address",
241 "serial_no": "SerialNo", "hypervisor": "Hypervisor",
242 "hvparams": "Hypervisor_parameters",
243 "be/memory": "Configured_memory",
245 "be/auto_balance": "Auto_balance",
246 "disk.count": "Disks", "disk.sizes": "Disk_sizes",
247 "nic.count": "NICs", "nic.ips": "NIC_IPs",
248 "nic.bridges": "NIC_bridges", "nic.macs": "NIC_MACs",
253 unitfields = ["be/memory", "oper_ram", "sd(a|b)_size", "disk\.size/.*"]
254 numfields = ["be/memory", "oper_ram", "sd(a|b)_size", "be/vcpus",
255 "serial_no", "(disk|nic)\.count", "disk\.size/.*"]
257 list_type_fields = ("tags", "disk.sizes",
258 "nic.macs", "nic.ips", "nic.bridges")
259 # change raw values to nicer strings
261 for idx, field in enumerate(selected_fields):
263 if field == "snodes":
264 val = ",".join(val) or "-"
265 elif field == "admin_state":
270 elif field == "oper_state":
277 elif field == "oper_ram":
280 elif field == "sda_size" or field == "sdb_size":
283 elif field in list_type_fields:
284 val = ",".join(str(item) for item in val)
289 data = GenerateTable(separator=opts.separator, headers=headers,
290 fields=selected_fields, unitfields=unitfields,
291 numfields=numfields, data=output, units=opts.units)
299 def AddInstance(opts, args):
300 """Add an instance to the cluster.
302 @param opts: the command line options selected by the user
304 @param args: should contain only one element, the new instance name
306 @return: the desired exit code
311 (pnode, snode) = SplitNodeOption(opts.node)
316 hypervisor, hvparams = opts.hypervisor
320 nic_max = max(int(nidx[0])+1 for nidx in opts.nics)
321 except ValueError, err:
322 raise errors.OpPrereqError("Invalid NIC index passed: %s" % str(err))
323 nics = [{}] * nic_max
324 for nidx, ndict in opts.nics.items():
331 # default of one nic, all auto
334 if opts.disk_template == constants.DT_DISKLESS:
336 raise errors.OpPrereqError("Diskless instance but disk"
337 " information passed")
341 raise errors.OpPrereqError("No disk information specified")
343 disk_max = max(int(didx[0])+1 for didx in opts.disks)
344 except ValueError, err:
345 raise errors.OpPrereqError("Invalid disk index passed: %s" % str(err))
346 disks = [{}] * disk_max
347 for didx, ddict in opts.disks:
349 if "size" not in ddict:
350 raise errors.OpPrereqError("Missing size for disk %d" % didx)
352 ddict["size"] = utils.ParseUnit(ddict["size"])
353 except ValueError, err:
354 raise errors.OpPrereqError("Invalid disk size for disk %d: %s" %
358 utils.ForceDictType(opts.beparams, constants.BES_PARAMETER_TYPES)
359 utils.ForceDictType(hvparams, constants.HVS_PARAMETER_TYPES)
361 op = opcodes.OpCreateInstance(instance_name=instance,
363 disk_template=opts.disk_template,
365 mode=constants.INSTANCE_CREATE,
366 os_type=opts.os, pnode=pnode,
368 start=opts.start, ip_check=opts.ip_check,
369 wait_for_sync=opts.wait_for_sync,
370 hypervisor=hypervisor,
372 beparams=opts.beparams,
373 iallocator=opts.iallocator,
374 file_storage_dir=opts.file_storage_dir,
375 file_driver=opts.file_driver,
378 SubmitOrSend(op, opts)
382 def BatchCreate(opts, args):
383 """Create instances using a definition file.
385 This function reads a json file with instances defined
389 "disk_size": [20480],
395 "primary_node": "firstnode",
396 "secondary_node": "secondnode",
397 "iallocator": "dumb"}
400 Note that I{primary_node} and I{secondary_node} have precedence over
403 @param opts: the command line options selected by the user
405 @param args: should contain one element, the json filename
407 @return: the desired exit code
410 _DEFAULT_SPECS = {"disk_size": [20 * 1024],
413 "primary_node": None,
414 "secondary_node": None,
422 "file_storage_dir": None,
423 "file_driver": 'loop'}
425 def _PopulateWithDefaults(spec):
426 """Returns a new hash combined with default values."""
427 mydict = _DEFAULT_SPECS.copy()
432 """Validate the instance specs."""
433 # Validate fields required under any circumstances
434 for required_field in ('os', 'template'):
435 if required_field not in spec:
436 raise errors.OpPrereqError('Required field "%s" is missing.' %
438 # Validate special fields
439 if spec['primary_node'] is not None:
440 if (spec['template'] in constants.DTS_NET_MIRROR and
441 spec['secondary_node'] is None):
442 raise errors.OpPrereqError('Template requires secondary node, but'
443 ' there was no secondary provided.')
444 elif spec['iallocator'] is None:
445 raise errors.OpPrereqError('You have to provide at least a primary_node'
446 ' or an iallocator.')
448 if (spec['hvparams'] and
449 not isinstance(spec['hvparams'], dict)):
450 raise errors.OpPrereqError('Hypervisor parameters must be a dict.')
452 json_filename = args[0]
454 fd = open(json_filename, 'r')
455 instance_data = simplejson.load(fd)
457 except Exception, err:
458 ToStderr("Can't parse the instance definition file: %s" % str(err))
461 # Iterate over the instances and do:
462 # * Populate the specs with default value
463 # * Validate the instance specs
464 i_names = utils.NiceSort(instance_data.keys())
466 specs = instance_data[name]
467 specs = _PopulateWithDefaults(specs)
470 hypervisor = specs['hypervisor']
471 hvparams = specs['hvparams']
474 for elem in specs['disk_size']:
476 size = utils.ParseUnit(elem)
477 except ValueError, err:
478 raise errors.OpPrereqError("Invalid disk size '%s' for"
481 disks.append({"size": size})
483 nic0 = {'ip': specs['ip'], 'bridge': specs['bridge'], 'mac': specs['mac']}
485 utils.ForceDictType(specs['backend'], constants.BES_PARAMETER_TYPES)
486 utils.ForceDictType(hvparams, constants.HVS_PARAMETER_TYPES)
488 op = opcodes.OpCreateInstance(instance_name=name,
490 disk_template=specs['template'],
491 mode=constants.INSTANCE_CREATE,
493 pnode=specs['primary_node'],
494 snode=specs['secondary_node'],
496 start=specs['start'],
497 ip_check=specs['ip_check'],
499 iallocator=specs['iallocator'],
500 hypervisor=hypervisor,
502 beparams=specs['backend'],
503 file_storage_dir=specs['file_storage_dir'],
504 file_driver=specs['file_driver'])
506 ToStdout("%s: %s", name, cli.SendJob([op]))
511 def ReinstallInstance(opts, args):
512 """Reinstall an instance.
514 @param opts: the command line options selected by the user
516 @param args: should contain only one element, the name of the
517 instance to be reinstalled
519 @return: the desired exit code
522 instance_name = args[0]
524 if opts.select_os is True:
525 op = opcodes.OpDiagnoseOS(output_fields=["name", "valid"], names=[])
526 result = SubmitOpCode(op)
529 ToStdout("Can't get the OS list")
532 ToStdout("Available OS templates:")
536 ToStdout("%3s: %s", number, entry[0])
537 choices.append(("%s" % number, entry[0], entry[0]))
540 choices.append(('x', 'exit', 'Exit gnt-instance reinstall'))
541 selected = AskUser("Enter OS template name or number (or x to abort):",
544 if selected == 'exit':
545 ToStdout("User aborted reinstall, exiting")
553 usertext = ("This will reinstall the instance %s and remove"
554 " all data. Continue?") % instance_name
555 if not AskUser(usertext):
558 op = opcodes.OpReinstallInstance(instance_name=instance_name,
560 SubmitOrSend(op, opts)
565 def RemoveInstance(opts, args):
566 """Remove an instance.
568 @param opts: the command line options selected by the user
570 @param args: should contain only one element, the name of
571 the instance to be removed
573 @return: the desired exit code
576 instance_name = args[0]
581 _EnsureInstancesExist(cl, [instance_name])
583 usertext = ("This will remove the volumes of the instance %s"
584 " (including mirrors), thus removing all the data"
585 " of the instance. Continue?") % instance_name
586 if not AskUser(usertext):
589 op = opcodes.OpRemoveInstance(instance_name=instance_name,
590 ignore_failures=opts.ignore_failures)
591 SubmitOrSend(op, opts, cl=cl)
595 def RenameInstance(opts, args):
596 """Rename an instance.
598 @param opts: the command line options selected by the user
600 @param args: should contain two elements, the old and the
603 @return: the desired exit code
606 op = opcodes.OpRenameInstance(instance_name=args[0],
608 ignore_ip=opts.ignore_ip)
609 SubmitOrSend(op, opts)
613 def ActivateDisks(opts, args):
614 """Activate an instance's disks.
616 This serves two purposes:
617 - it allows (as long as the instance is not running)
618 mounting the disks and modifying them from the node
619 - it repairs inactive secondary drbds
621 @param opts: the command line options selected by the user
623 @param args: should contain only one element, the instance name
625 @return: the desired exit code
628 instance_name = args[0]
629 op = opcodes.OpActivateInstanceDisks(instance_name=instance_name)
630 disks_info = SubmitOrSend(op, opts)
631 for host, iname, nname in disks_info:
632 ToStdout("%s:%s:%s", host, iname, nname)
636 def DeactivateDisks(opts, args):
637 """Deactivate an instance's disks..
639 This function takes the instance name, looks for its primary node
640 and the tries to shutdown its block devices on that node.
642 @param opts: the command line options selected by the user
644 @param args: should contain only one element, the instance name
646 @return: the desired exit code
649 instance_name = args[0]
650 op = opcodes.OpDeactivateInstanceDisks(instance_name=instance_name)
651 SubmitOrSend(op, opts)
655 def GrowDisk(opts, args):
656 """Grow an instance's disks.
658 @param opts: the command line options selected by the user
660 @param args: should contain two elements, the instance name
661 whose disks we grow and the disk name, e.g. I{sda}
663 @return: the desired exit code
670 except ValueError, err:
671 raise errors.OpPrereqError("Invalid disk index: %s" % str(err))
672 amount = utils.ParseUnit(args[2])
673 op = opcodes.OpGrowDisk(instance_name=instance, disk=disk, amount=amount,
674 wait_for_sync=opts.wait_for_sync)
675 SubmitOrSend(op, opts)
679 def StartupInstance(opts, args):
680 """Startup instances.
682 Depending on the options given, this will start one or more
685 @param opts: the command line options selected by the user
687 @param args: the instance or node names based on which we
688 create the final selection (in conjunction with the
691 @return: the desired exit code
695 if opts.multi_mode is None:
696 opts.multi_mode = _SHUTDOWN_INSTANCES
697 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
699 raise errors.OpPrereqError("Selection filter does not match any instances")
700 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
701 if not (opts.force_multi or not multi_on
702 or _ConfirmOperation(inames, "startup")):
704 jex = cli.JobExecutor(verbose=multi_on, cl=cl)
706 op = opcodes.OpStartupInstance(instance_name=name,
708 extra_args=opts.extra_args)
709 jex.QueueJob(name, op)
710 jex.WaitOrShow(not opts.submit_only)
714 def RebootInstance(opts, args):
715 """Reboot instance(s).
717 Depending on the parameters given, this will reboot one or more
720 @param opts: the command line options selected by the user
722 @param args: the instance or node names based on which we
723 create the final selection (in conjunction with the
726 @return: the desired exit code
730 if opts.multi_mode is None:
731 opts.multi_mode = _SHUTDOWN_INSTANCES
732 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
734 raise errors.OpPrereqError("Selection filter does not match any instances")
735 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
736 if not (opts.force_multi or not multi_on
737 or _ConfirmOperation(inames, "reboot")):
739 jex = JobExecutor(verbose=multi_on, cl=cl)
741 op = opcodes.OpRebootInstance(instance_name=name,
742 reboot_type=opts.reboot_type,
743 ignore_secondaries=opts.ignore_secondaries)
744 jex.QueueJob(name, op)
745 jex.WaitOrShow(not opts.submit_only)
749 def ShutdownInstance(opts, args):
750 """Shutdown an instance.
752 @param opts: the command line options selected by the user
754 @param args: the instance or node names based on which we
755 create the final selection (in conjunction with the
758 @return: the desired exit code
762 if opts.multi_mode is None:
763 opts.multi_mode = _SHUTDOWN_INSTANCES
764 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
766 raise errors.OpPrereqError("Selection filter does not match any instances")
767 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
768 if not (opts.force_multi or not multi_on
769 or _ConfirmOperation(inames, "shutdown")):
772 jex = cli.JobExecutor(verbose=multi_on, cl=cl)
774 op = opcodes.OpShutdownInstance(instance_name=name)
775 jex.QueueJob(name, op)
776 jex.WaitOrShow(not opts.submit_only)
780 def ReplaceDisks(opts, args):
781 """Replace the disks of an instance
783 @param opts: the command line options selected by the user
785 @param args: should contain only one element, the instance name
787 @return: the desired exit code
790 instance_name = args[0]
791 new_2ndary = opts.new_secondary
792 iallocator = opts.iallocator
793 if opts.disks is None:
797 disks = [int(i) for i in opts.disks.split(",")]
798 except ValueError, err:
799 raise errors.OpPrereqError("Invalid disk index passed: %s" % str(err))
800 cnt = [opts.on_primary, opts.on_secondary,
801 new_2ndary is not None, iallocator is not None].count(True)
803 raise errors.OpPrereqError("One and only one of the -p, -s, -n and -i"
804 " options must be passed")
805 elif opts.on_primary:
806 mode = constants.REPLACE_DISK_PRI
807 elif opts.on_secondary:
808 mode = constants.REPLACE_DISK_SEC
809 elif new_2ndary is not None or iallocator is not None:
811 mode = constants.REPLACE_DISK_CHG
813 op = opcodes.OpReplaceDisks(instance_name=args[0], disks=disks,
814 remote_node=new_2ndary, mode=mode,
815 iallocator=iallocator)
816 SubmitOrSend(op, opts)
820 def FailoverInstance(opts, args):
821 """Failover an instance.
823 The failover is done by shutting it down on its present node and
824 starting it on the secondary.
826 @param opts: the command line options selected by the user
828 @param args: should contain only one element, the instance name
830 @return: the desired exit code
834 instance_name = args[0]
838 _EnsureInstancesExist(cl, [instance_name])
840 usertext = ("Failover will happen to image %s."
841 " This requires a shutdown of the instance. Continue?" %
843 if not AskUser(usertext):
846 op = opcodes.OpFailoverInstance(instance_name=instance_name,
847 ignore_consistency=opts.ignore_consistency)
848 SubmitOrSend(op, opts, cl=cl)
852 def MigrateInstance(opts, args):
853 """Migrate an instance.
855 The migrate is done without shutdown.
857 @param opts: the command line options selected by the user
859 @param args: should contain only one element, the instance name
861 @return: the desired exit code
865 instance_name = args[0]
869 _EnsureInstancesExist(cl, [instance_name])
872 usertext = ("Instance %s will be recovered from a failed migration."
873 " Note that the migration procedure (including cleanup)" %
876 usertext = ("Instance %s will be migrated. Note that migration" %
878 usertext += (" is **experimental** in this version."
879 " This might impact the instance if anything goes wrong."
881 if not AskUser(usertext):
884 op = opcodes.OpMigrateInstance(instance_name=instance_name, live=opts.live,
885 cleanup=opts.cleanup)
886 SubmitOpCode(op, cl=cl)
890 def ConnectToInstanceConsole(opts, args):
891 """Connect to the console of an instance.
893 @param opts: the command line options selected by the user
895 @param args: should contain only one element, the instance name
897 @return: the desired exit code
900 instance_name = args[0]
902 op = opcodes.OpConnectConsole(instance_name=instance_name)
903 cmd = SubmitOpCode(op)
905 if opts.show_command:
906 ToStdout("%s", utils.ShellQuoteArgs(cmd))
909 os.execvp(cmd[0], cmd)
911 ToStderr("Can't run console command %s with arguments:\n'%s'",
912 cmd[0], " ".join(cmd))
916 def _FormatLogicalID(dev_type, logical_id):
917 """Formats the logical_id of a disk.
920 if dev_type == constants.LD_DRBD8:
921 node_a, node_b, port, minor_a, minor_b, key = logical_id
923 ("nodeA", "%s, minor=%s" % (node_a, minor_a)),
924 ("nodeB", "%s, minor=%s" % (node_b, minor_b)),
928 elif dev_type == constants.LD_LV:
929 vg_name, lv_name = logical_id
930 data = ["%s/%s" % (vg_name, lv_name)]
932 data = [str(logical_id)]
937 def _FormatBlockDevInfo(idx, top_level, dev, static):
938 """Show block device information.
940 This is only used by L{ShowInstanceConfig}, but it's too big to be
941 left for an inline definition.
944 @param idx: the index of the current disk
945 @type top_level: boolean
946 @param top_level: if this a top-level disk?
948 @param dev: dictionary with disk information
949 @type static: boolean
950 @param static: wheter the device information doesn't contain
951 runtime information but only static data
952 @return: a list of either strings, tuples or lists
953 (which should be formatted at a higher indent level)
956 def helper(dtype, status):
957 """Format one line for physical device status.
960 @param dtype: a constant from the L{constants.LDS_BLOCK} set
962 @param status: a tuple as returned from L{backend.FindBlockDevice}
963 @return: the string representing the status
969 (path, major, minor, syncp, estt, degr, ldisk) = status
973 major_string = str(major)
978 minor_string = str(minor)
980 txt += ("%s (%s:%s)" % (path, major_string, minor_string))
981 if dtype in (constants.LD_DRBD8, ):
982 if syncp is not None:
983 sync_text = "*RECOVERING* %5.2f%%," % syncp
985 sync_text += " ETA %ds" % estt
987 sync_text += " ETA unknown"
989 sync_text = "in sync"
991 degr_text = "*DEGRADED*"
995 ldisk_text = " *MISSING DISK*"
998 txt += (" %s, status %s%s" % (sync_text, degr_text, ldisk_text))
999 elif dtype == constants.LD_LV:
1001 ldisk_text = " *FAILED* (failed drive?)"
1009 if dev["iv_name"] is not None:
1010 txt = dev["iv_name"]
1012 txt = "disk %d" % idx
1014 txt = "child %d" % idx
1015 d1 = ["- %s: %s" % (txt, dev["dev_type"])]
1018 data.append(("access mode", dev["mode"]))
1019 if dev["logical_id"] is not None:
1021 l_id = _FormatLogicalID(dev["dev_type"], dev["logical_id"])
1023 l_id = [str(dev["logical_id"])]
1025 data.append(("logical_id", l_id[0]))
1028 elif dev["physical_id"] is not None:
1029 data.append("physical_id:")
1030 data.append([dev["physical_id"]])
1032 data.append(("on primary", helper(dev["dev_type"], dev["pstatus"])))
1033 if dev["sstatus"] and not static:
1034 data.append(("on secondary", helper(dev["dev_type"], dev["sstatus"])))
1037 data.append("child devices:")
1038 for c_idx, child in enumerate(dev["children"]):
1039 data.append(_FormatBlockDevInfo(c_idx, False, child, static))
1044 def _FormatList(buf, data, indent_level):
1045 """Formats a list of data at a given indent level.
1047 If the element of the list is:
1048 - a string, it is simply formatted as is
1049 - a tuple, it will be split into key, value and the all the
1050 values in a list will be aligned all at the same start column
1051 - a list, will be recursively formatted
1054 @param buf: the buffer into which we write the output
1055 @param data: the list to format
1056 @type indent_level: int
1057 @param indent_level: the indent level to format at
1060 max_tlen = max([len(elem[0]) for elem in data
1061 if isinstance(elem, tuple)] or [0])
1063 if isinstance(elem, basestring):
1064 buf.write("%*s%s\n" % (2*indent_level, "", elem))
1065 elif isinstance(elem, tuple):
1067 spacer = "%*s" % (max_tlen - len(key), "")
1068 buf.write("%*s%s:%s %s\n" % (2*indent_level, "", key, spacer, value))
1069 elif isinstance(elem, list):
1070 _FormatList(buf, elem, indent_level+1)
1072 def ShowInstanceConfig(opts, args):
1073 """Compute instance run-time status.
1075 @param opts: the command line options selected by the user
1077 @param args: either an empty list, and then we query all
1078 instances, or should contain a list of instance names
1080 @return: the desired exit code
1084 op = opcodes.OpQueryInstanceData(instances=args, static=opts.static)
1085 result = SubmitOpCode(op)
1087 ToStdout("No instances.")
1092 for instance_name in result:
1093 instance = result[instance_name]
1094 buf.write("Instance name: %s\n" % instance["name"])
1095 buf.write("State: configured to be %s" % instance["config_state"])
1097 buf.write(", actual state is %s" % instance["run_state"])
1099 ##buf.write("Considered for memory checks in cluster verify: %s\n" %
1100 ## instance["auto_balance"])
1101 buf.write(" Nodes:\n")
1102 buf.write(" - primary: %s\n" % instance["pnode"])
1103 buf.write(" - secondaries: %s\n" % ", ".join(instance["snodes"]))
1104 buf.write(" Operating system: %s\n" % instance["os"])
1105 if instance.has_key("network_port"):
1106 buf.write(" Allocated network port: %s\n" % instance["network_port"])
1107 buf.write(" Hypervisor: %s\n" % instance["hypervisor"])
1108 if instance["hypervisor"] == constants.HT_XEN_PVM:
1109 hvattrs = ((constants.HV_KERNEL_PATH, "kernel path"),
1110 (constants.HV_INITRD_PATH, "initrd path"))
1111 elif instance["hypervisor"] == constants.HT_XEN_HVM:
1112 hvattrs = ((constants.HV_BOOT_ORDER, "boot order"),
1113 (constants.HV_ACPI, "ACPI"),
1114 (constants.HV_PAE, "PAE"),
1115 (constants.HV_CDROM_IMAGE_PATH, "virtual CDROM"),
1116 (constants.HV_NIC_TYPE, "NIC type"),
1117 (constants.HV_DISK_TYPE, "Disk type"),
1118 (constants.HV_VNC_BIND_ADDRESS, "VNC bind address"),
1120 # custom console information for HVM
1121 vnc_bind_address = instance["hv_actual"][constants.HV_VNC_BIND_ADDRESS]
1122 if vnc_bind_address == constants.BIND_ADDRESS_GLOBAL:
1123 vnc_console_port = "%s:%s" % (instance["pnode"],
1124 instance["network_port"])
1125 elif vnc_bind_address == constants.LOCALHOST_IP_ADDRESS:
1126 vnc_console_port = "%s:%s on node %s" % (vnc_bind_address,
1127 instance["network_port"],
1130 vnc_console_port = "%s:%s" % (vnc_bind_address,
1131 instance["network_port"])
1132 buf.write(" - console connection: vnc to %s\n" % vnc_console_port)
1135 # auto-handle other hypervisor types
1136 hvattrs = [(key, key) for key in instance["hv_actual"]]
1138 for key, desc in hvattrs:
1139 if key in instance["hv_instance"]:
1140 val = instance["hv_instance"][key]
1142 val = "default (%s)" % instance["hv_actual"][key]
1143 buf.write(" - %s: %s\n" % (desc, val))
1144 buf.write(" Hardware:\n")
1145 buf.write(" - VCPUs: %d\n" %
1146 instance["be_actual"][constants.BE_VCPUS])
1147 buf.write(" - memory: %dMiB\n" %
1148 instance["be_actual"][constants.BE_MEMORY])
1149 buf.write(" - NICs:\n")
1150 for idx, (mac, ip, bridge) in enumerate(instance["nics"]):
1151 buf.write(" - nic/%d: MAC: %s, IP: %s, bridge: %s\n" %
1152 (idx, mac, ip, bridge))
1153 buf.write(" Disks:\n")
1155 for idx, device in enumerate(instance["disks"]):
1156 _FormatList(buf, _FormatBlockDevInfo(idx, True, device, opts.static), 2)
1158 ToStdout(buf.getvalue().rstrip('\n'))
1162 def SetInstanceParams(opts, args):
1163 """Modifies an instance.
1165 All parameters take effect only at the next restart of the instance.
1167 @param opts: the command line options selected by the user
1169 @param args: should contain only one element, the instance name
1171 @return: the desired exit code
1174 if not (opts.nics or opts.disks or
1175 opts.hypervisor or opts.beparams):
1176 ToStderr("Please give at least one of the parameters.")
1179 for param in opts.beparams:
1180 if isinstance(opts.beparams[param], basestring):
1181 if opts.beparams[param].lower() == "default":
1182 opts.beparams[param] = constants.VALUE_DEFAULT
1184 utils.ForceDictType(opts.beparams, constants.BES_PARAMETER_TYPES,
1185 allowed_values=[constants.VALUE_DEFAULT])
1187 for param in opts.hypervisor:
1188 if isinstance(opts.hypervisor[param], basestring):
1189 if opts.hypervisor[param].lower() == "default":
1190 opts.hypervisor[param] = constants.VALUE_DEFAULT
1192 utils.ForceDictType(opts.hypervisor, constants.HVS_PARAMETER_TYPES,
1193 allowed_values=[constants.VALUE_DEFAULT])
1195 for idx, (nic_op, nic_dict) in enumerate(opts.nics):
1197 nic_op = int(nic_op)
1198 opts.nics[idx] = (nic_op, nic_dict)
1202 for idx, (disk_op, disk_dict) in enumerate(opts.disks):
1204 disk_op = int(disk_op)
1205 opts.disks[idx] = (disk_op, disk_dict)
1208 if disk_op == constants.DDM_ADD:
1209 if 'size' not in disk_dict:
1210 raise errors.OpPrereqError("Missing required parameter 'size'")
1211 disk_dict['size'] = utils.ParseUnit(disk_dict['size'])
1213 op = opcodes.OpSetInstanceParams(instance_name=args[0],
1216 hvparams=opts.hypervisor,
1217 beparams=opts.beparams,
1220 # even if here we process the result, we allow submit only
1221 result = SubmitOrSend(op, opts)
1224 ToStdout("Modified instance %s", args[0])
1225 for param, data in result:
1226 ToStdout(" - %-5s -> %s", param, data)
1227 ToStdout("Please don't forget that these parameters take effect"
1228 " only at the next start of the instance.")
1232 # options used in more than one cmd
1233 node_opt = make_option("-n", "--node", dest="node", help="Target node",
1236 os_opt = cli_option("-o", "--os-type", dest="os", help="What OS to run",
1239 # multi-instance selection options
1240 m_force_multi = make_option("--force-multiple", dest="force_multi",
1241 help="Do not ask for confirmation when more than"
1242 " one instance is affected",
1243 action="store_true", default=False)
1245 m_pri_node_opt = make_option("--primary", dest="multi_mode",
1246 help="Filter by nodes (primary only)",
1247 const=_SHUTDOWN_NODES_PRI, action="store_const")
1249 m_sec_node_opt = make_option("--secondary", dest="multi_mode",
1250 help="Filter by nodes (secondary only)",
1251 const=_SHUTDOWN_NODES_SEC, action="store_const")
1253 m_node_opt = make_option("--node", dest="multi_mode",
1254 help="Filter by nodes (primary and secondary)",
1255 const=_SHUTDOWN_NODES_BOTH, action="store_const")
1257 m_clust_opt = make_option("--all", dest="multi_mode",
1258 help="Select all instances in the cluster",
1259 const=_SHUTDOWN_CLUSTER, action="store_const")
1261 m_inst_opt = make_option("--instance", dest="multi_mode",
1262 help="Filter by instance name [default]",
1263 const=_SHUTDOWN_INSTANCES, action="store_const")
1266 # this is defined separately due to readability only
1269 make_option("-n", "--node", dest="node",
1270 help="Target node and optional secondary node",
1271 metavar="<pnode>[:<snode>]"),
1273 keyval_option("-B", "--backend", dest="beparams",
1274 type="keyval", default={},
1275 help="Backend parameters"),
1276 make_option("-t", "--disk-template", dest="disk_template",
1277 help="Custom disk setup (diskless, file, plain or drbd)",
1278 default=None, metavar="TEMPL"),
1279 ikv_option("--disk", help="Disk information",
1280 default=[], dest="disks",
1282 type="identkeyval"),
1283 ikv_option("--net", help="NIC information",
1284 default=[], dest="nics",
1286 type="identkeyval"),
1287 make_option("--no-nics", default=False, action="store_true",
1288 help="Do not create any network cards for the instance"),
1289 make_option("--no-wait-for-sync", dest="wait_for_sync", default=True,
1290 action="store_false", help="Don't wait for sync (DANGEROUS!)"),
1291 make_option("--no-start", dest="start", default=True,
1292 action="store_false", help="Don't start the instance after"
1294 make_option("--no-ip-check", dest="ip_check", default=True,
1295 action="store_false", help="Don't check that the instance's IP"
1296 " is alive (only valid with --no-start)"),
1297 make_option("--file-storage-dir", dest="file_storage_dir",
1298 help="Relative path under default cluster-wide file storage dir"
1299 " to store file-based disks", default=None,
1301 make_option("--file-driver", dest="file_driver", help="Driver to use"
1302 " for image files", default="loop", metavar="<DRIVER>"),
1303 make_option("-I", "--iallocator", metavar="<NAME>",
1304 help="Select nodes for the instance automatically using the"
1305 " <NAME> iallocator plugin", default=None, type="string"),
1306 ikv_option("-H", "--hypervisor", dest="hypervisor",
1307 help="Hypervisor and hypervisor options, in the format"
1308 " hypervisor:option=value,option=value,...", default=None,
1309 type="identkeyval"),
1314 'add': (AddInstance, ARGS_ONE, add_opts,
1315 "[...] -t disk-type -n node[:secondary-node] -o os-type <name>",
1316 "Creates and adds a new instance to the cluster"),
1317 'batch-create': (BatchCreate, ARGS_ONE,
1319 "<instances_file.json>",
1320 "Create a bunch of instances based on specs in the file."),
1321 'console': (ConnectToInstanceConsole, ARGS_ONE,
1323 make_option("--show-cmd", dest="show_command",
1324 action="store_true", default=False,
1325 help=("Show command instead of executing it"))],
1326 "[--show-cmd] <instance>",
1327 "Opens a console on the specified instance"),
1328 'failover': (FailoverInstance, ARGS_ONE,
1329 [DEBUG_OPT, FORCE_OPT,
1330 make_option("--ignore-consistency", dest="ignore_consistency",
1331 action="store_true", default=False,
1332 help="Ignore the consistency of the disks on"
1337 "Stops the instance and starts it on the backup node, using"
1338 " the remote mirror (only for instances of type drbd)"),
1339 'migrate': (MigrateInstance, ARGS_ONE,
1340 [DEBUG_OPT, FORCE_OPT,
1341 make_option("--non-live", dest="live",
1342 default=True, action="store_false",
1343 help="Do a non-live migration (this usually means"
1344 " freeze the instance, save the state,"
1345 " transfer and only then resume running on the"
1346 " secondary node)"),
1347 make_option("--cleanup", dest="cleanup",
1348 default=False, action="store_true",
1349 help="Instead of performing the migration, try to"
1350 " recover from a failed cleanup. This is safe"
1351 " to run even if the instance is healthy, but it"
1352 " will create extra replication traffic and "
1353 " disrupt briefly the replication (like during the"
1357 "Migrate instance to its secondary node"
1358 " (only for instances of type drbd)"),
1359 'info': (ShowInstanceConfig, ARGS_ANY,
1361 make_option("-s", "--static", dest="static",
1362 action="store_true", default=False,
1363 help="Only show configuration data, not runtime data"),
1364 ], "[-s] [<instance>...]",
1365 "Show information on the specified instance(s)"),
1366 'list': (ListInstances, ARGS_ANY,
1367 [DEBUG_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, SYNC_OPT],
1369 "Lists the instances and their status. The available fields are"
1370 " (see the man page for details): status, oper_state, oper_ram,"
1371 " name, os, pnode, snodes, admin_state, admin_ram, disk_template,"
1372 " ip, mac, bridge, sda_size, sdb_size, vcpus, serial_no,"
1374 " The default field"
1375 " list is (in order): %s." % ", ".join(_LIST_DEF_FIELDS),
1377 'reinstall': (ReinstallInstance, ARGS_ONE,
1378 [DEBUG_OPT, FORCE_OPT, os_opt,
1379 make_option("--select-os", dest="select_os",
1380 action="store_true", default=False,
1381 help="Interactive OS reinstall, lists available"
1382 " OS templates for selection"),
1385 "[-f] <instance>", "Reinstall a stopped instance"),
1386 'remove': (RemoveInstance, ARGS_ONE,
1387 [DEBUG_OPT, FORCE_OPT,
1388 make_option("--ignore-failures", dest="ignore_failures",
1389 action="store_true", default=False,
1390 help=("Remove the instance from the cluster even"
1391 " if there are failures during the removal"
1392 " process (shutdown, disk removal, etc.)")),
1395 "[-f] <instance>", "Shuts down the instance and removes it"),
1396 'rename': (RenameInstance, ARGS_FIXED(2),
1398 make_option("--no-ip-check", dest="ignore_ip",
1399 help="Do not check that the IP of the new name"
1401 default=False, action="store_true"),
1404 "<instance> <new_name>", "Rename the instance"),
1405 'replace-disks': (ReplaceDisks, ARGS_ONE,
1407 make_option("-n", "--new-secondary", dest="new_secondary",
1408 help=("New secondary node (for secondary"
1409 " node change)"), metavar="NODE",
1411 make_option("-p", "--on-primary", dest="on_primary",
1412 default=False, action="store_true",
1413 help=("Replace the disk(s) on the primary"
1414 " node (only for the drbd template)")),
1415 make_option("-s", "--on-secondary", dest="on_secondary",
1416 default=False, action="store_true",
1417 help=("Replace the disk(s) on the secondary"
1418 " node (only for the drbd template)")),
1419 make_option("--disks", dest="disks", default=None,
1420 help=("Comma-separated list of disks"
1421 " to replace (e.g. sda) (optional,"
1422 " defaults to all disks")),
1423 make_option("-i", "--iallocator", metavar="<NAME>",
1424 help="Select new secondary for the instance"
1425 " automatically using the"
1426 " <NAME> iallocator plugin (enables"
1427 " secondary node replacement)",
1428 default=None, type="string"),
1431 "[-s|-p|-n NODE] <instance>",
1432 "Replaces all disks for the instance"),
1433 'modify': (SetInstanceParams, ARGS_ONE,
1434 [DEBUG_OPT, FORCE_OPT,
1435 keyval_option("-H", "--hypervisor", type="keyval",
1436 default={}, dest="hypervisor",
1437 help="Change hypervisor parameters"),
1438 keyval_option("-B", "--backend", type="keyval",
1439 default={}, dest="beparams",
1440 help="Change backend parameters"),
1441 ikv_option("--disk", help="Disk changes",
1442 default=[], dest="disks",
1444 type="identkeyval"),
1445 ikv_option("--net", help="NIC changes",
1446 default=[], dest="nics",
1448 type="identkeyval"),
1451 "<instance>", "Alters the parameters of an instance"),
1452 'shutdown': (ShutdownInstance, ARGS_ANY,
1453 [DEBUG_OPT, m_node_opt, m_pri_node_opt, m_sec_node_opt,
1454 m_clust_opt, m_inst_opt, m_force_multi,
1457 "<instance>", "Stops an instance"),
1458 'startup': (StartupInstance, ARGS_ANY,
1459 [DEBUG_OPT, FORCE_OPT, m_force_multi,
1460 make_option("-e", "--extra", dest="extra_args",
1461 help="Extra arguments for the instance's kernel",
1462 default=None, type="string", metavar="<PARAMS>"),
1463 m_node_opt, m_pri_node_opt, m_sec_node_opt,
1464 m_clust_opt, m_inst_opt,
1467 "<instance>", "Starts an instance"),
1469 'reboot': (RebootInstance, ARGS_ANY,
1470 [DEBUG_OPT, m_force_multi,
1471 make_option("-e", "--extra", dest="extra_args",
1472 help="Extra arguments for the instance's kernel",
1473 default=None, type="string", metavar="<PARAMS>"),
1474 make_option("-t", "--type", dest="reboot_type",
1475 help="Type of reboot: soft/hard/full",
1476 default=constants.INSTANCE_REBOOT_HARD,
1477 type="string", metavar="<REBOOT>"),
1478 make_option("--ignore-secondaries", dest="ignore_secondaries",
1479 default=False, action="store_true",
1480 help="Ignore errors from secondaries"),
1481 m_node_opt, m_pri_node_opt, m_sec_node_opt,
1482 m_clust_opt, m_inst_opt,
1485 "<instance>", "Reboots an instance"),
1486 'activate-disks': (ActivateDisks, ARGS_ONE, [DEBUG_OPT, SUBMIT_OPT],
1488 "Activate an instance's disks"),
1489 'deactivate-disks': (DeactivateDisks, ARGS_ONE, [DEBUG_OPT, SUBMIT_OPT],
1491 "Deactivate an instance's disks"),
1492 'grow-disk': (GrowDisk, ARGS_FIXED(3),
1493 [DEBUG_OPT, SUBMIT_OPT,
1494 make_option("--no-wait-for-sync",
1495 dest="wait_for_sync", default=True,
1496 action="store_false",
1497 help="Don't wait for sync (DANGEROUS!)"),
1499 "<instance> <disk> <size>", "Grow an instance's disk"),
1500 'list-tags': (ListTags, ARGS_ONE, [DEBUG_OPT],
1501 "<instance_name>", "List the tags of the given instance"),
1502 'add-tags': (AddTags, ARGS_ATLEAST(1), [DEBUG_OPT, TAG_SRC_OPT],
1503 "<instance_name> tag...", "Add tags to the given instance"),
1504 'remove-tags': (RemoveTags, ARGS_ATLEAST(1), [DEBUG_OPT, TAG_SRC_OPT],
1505 "<instance_name> tag...", "Remove tags from given instance"),
1508 #: dictionary with aliases for commands
1510 'activate_block_devs': 'activate-disks',
1511 'replace_disks': 'replace-disks',
1516 if __name__ == '__main__':
1517 sys.exit(GenericMain(commands, aliases=aliases,
1518 override={"tag_type": constants.TAG_INSTANCE}))