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 ValidateBeParams(opts.beparams)
360 ## kernel_path = _TransformPath(opts.kernel_path)
361 ## initrd_path = _TransformPath(opts.initrd_path)
363 ## hvm_acpi = opts.hvm_acpi == _VALUE_TRUE
364 ## hvm_pae = opts.hvm_pae == _VALUE_TRUE
366 ## if ((opts.hvm_cdrom_image_path is not None) and
367 ## (opts.hvm_cdrom_image_path.lower() == constants.VALUE_NONE)):
368 ## hvm_cdrom_image_path = None
370 ## hvm_cdrom_image_path = opts.hvm_cdrom_image_path
372 op = opcodes.OpCreateInstance(instance_name=instance,
374 disk_template=opts.disk_template,
376 mode=constants.INSTANCE_CREATE,
377 os_type=opts.os, pnode=pnode,
379 start=opts.start, ip_check=opts.ip_check,
380 wait_for_sync=opts.wait_for_sync,
381 hypervisor=hypervisor,
383 beparams=opts.beparams,
384 iallocator=opts.iallocator,
385 file_storage_dir=opts.file_storage_dir,
386 file_driver=opts.file_driver,
389 SubmitOrSend(op, opts)
393 def BatchCreate(opts, args):
394 """Create instances using a definition file.
396 This function reads a json file with instances defined
400 "disk_size": [20480],
406 "primary_node": "firstnode",
407 "secondary_node": "secondnode",
408 "iallocator": "dumb"}
411 Note that I{primary_node} and I{secondary_node} have precedence over
414 @param opts: the command line options selected by the user
416 @param args: should contain one element, the json filename
418 @return: the desired exit code
421 _DEFAULT_SPECS = {"disk_size": [20 * 1024],
424 "primary_node": None,
425 "secondary_node": None,
432 "file_storage_dir": None,
433 "file_driver": 'loop'}
435 def _PopulateWithDefaults(spec):
436 """Returns a new hash combined with default values."""
437 mydict = _DEFAULT_SPECS.copy()
442 """Validate the instance specs."""
443 # Validate fields required under any circumstances
444 for required_field in ('os', 'template'):
445 if required_field not in spec:
446 raise errors.OpPrereqError('Required field "%s" is missing.' %
448 # Validate special fields
449 if spec['primary_node'] is not None:
450 if (spec['template'] in constants.DTS_NET_MIRROR and
451 spec['secondary_node'] is None):
452 raise errors.OpPrereqError('Template requires secondary node, but'
453 ' there was no secondary provided.')
454 elif spec['iallocator'] is None:
455 raise errors.OpPrereqError('You have to provide at least a primary_node'
456 ' or an iallocator.')
458 if (spec['hypervisor'] and
459 not isinstance(spec['hypervisor'], dict)):
460 raise errors.OpPrereqError('Hypervisor parameters must be a dict.')
462 json_filename = args[0]
463 fd = open(json_filename, 'r')
465 instance_data = simplejson.load(fd)
469 # Iterate over the instances and do:
470 # * Populate the specs with default value
471 # * Validate the instance specs
472 i_names = utils.NiceSort(instance_data.keys())
474 specs = instance_data[name]
475 specs = _PopulateWithDefaults(specs)
480 if specs['hypervisor']:
481 hypervisor, hvparams = specs['hypervisor'].iteritems()
484 for elem in specs['disk_size']:
486 size = utils.ParseUnit(elem)
487 except ValueError, err:
488 raise errors.OpPrereqError("Invalid disk size '%s' for"
491 disks.append({"size": size})
493 nic0 = {'ip': specs['ip'], 'bridge': specs['bridge'], 'mac': specs['mac']}
495 op = opcodes.OpCreateInstance(instance_name=name,
497 disk_template=specs['template'],
498 mode=constants.INSTANCE_CREATE,
500 pnode=specs['primary_node'],
501 snode=specs['secondary_node'],
503 start=specs['start'],
504 ip_check=specs['ip_check'],
506 iallocator=specs['iallocator'],
507 hypervisor=hypervisor,
509 beparams=specs['backend'],
510 file_storage_dir=specs['file_storage_dir'],
511 file_driver=specs['file_driver'])
513 ToStdout("%s: %s", name, cli.SendJob([op]))
518 def ReinstallInstance(opts, args):
519 """Reinstall an instance.
521 @param opts: the command line options selected by the user
523 @param args: should contain only one element, the name of the
524 instance to be reinstalled
526 @return: the desired exit code
529 instance_name = args[0]
531 if opts.select_os is True:
532 op = opcodes.OpDiagnoseOS(output_fields=["name", "valid"], names=[])
533 result = SubmitOpCode(op)
536 ToStdout("Can't get the OS list")
539 ToStdout("Available OS templates:")
543 ToStdout("%3s: %s", number, entry[0])
544 choices.append(("%s" % number, entry[0], entry[0]))
547 choices.append(('x', 'exit', 'Exit gnt-instance reinstall'))
548 selected = AskUser("Enter OS template name or number (or x to abort):",
551 if selected == 'exit':
552 ToStdout("User aborted reinstall, exiting")
560 usertext = ("This will reinstall the instance %s and remove"
561 " all data. Continue?") % instance_name
562 if not AskUser(usertext):
565 op = opcodes.OpReinstallInstance(instance_name=instance_name,
567 SubmitOrSend(op, opts)
572 def RemoveInstance(opts, args):
573 """Remove an instance.
575 @param opts: the command line options selected by the user
577 @param args: should contain only one element, the name of
578 the instance to be removed
580 @return: the desired exit code
583 instance_name = args[0]
588 _EnsureInstancesExist(cl, [instance_name])
590 usertext = ("This will remove the volumes of the instance %s"
591 " (including mirrors), thus removing all the data"
592 " of the instance. Continue?") % instance_name
593 if not AskUser(usertext):
596 op = opcodes.OpRemoveInstance(instance_name=instance_name,
597 ignore_failures=opts.ignore_failures)
598 SubmitOrSend(op, opts, cl=cl)
602 def RenameInstance(opts, args):
603 """Rename an instance.
605 @param opts: the command line options selected by the user
607 @param args: should contain two elements, the old and the
610 @return: the desired exit code
613 op = opcodes.OpRenameInstance(instance_name=args[0],
615 ignore_ip=opts.ignore_ip)
616 SubmitOrSend(op, opts)
620 def ActivateDisks(opts, args):
621 """Activate an instance's disks.
623 This serves two purposes:
624 - it allows (as long as the instance is not running)
625 mounting the disks and modifying them from the node
626 - it repairs inactive secondary drbds
628 @param opts: the command line options selected by the user
630 @param args: should contain only one element, the instance name
632 @return: the desired exit code
635 instance_name = args[0]
636 op = opcodes.OpActivateInstanceDisks(instance_name=instance_name)
637 disks_info = SubmitOrSend(op, opts)
638 for host, iname, nname in disks_info:
639 ToStdout("%s:%s:%s", host, iname, nname)
643 def DeactivateDisks(opts, args):
644 """Deactivate an instance's disks..
646 This function takes the instance name, looks for its primary node
647 and the tries to shutdown its block devices on that node.
649 @param opts: the command line options selected by the user
651 @param args: should contain only one element, the instance name
653 @return: the desired exit code
656 instance_name = args[0]
657 op = opcodes.OpDeactivateInstanceDisks(instance_name=instance_name)
658 SubmitOrSend(op, opts)
662 def GrowDisk(opts, args):
663 """Grow an instance's disks.
665 @param opts: the command line options selected by the user
667 @param args: should contain two elements, the instance name
668 whose disks we grow and the disk name, e.g. I{sda}
670 @return: the desired exit code
677 except ValueError, err:
678 raise errors.OpPrereqError("Invalid disk index: %s" % str(err))
679 amount = utils.ParseUnit(args[2])
680 op = opcodes.OpGrowDisk(instance_name=instance, disk=disk, amount=amount,
681 wait_for_sync=opts.wait_for_sync)
682 SubmitOrSend(op, opts)
686 def StartupInstance(opts, args):
687 """Startup instances.
689 Depending on the options given, this will start one or more
692 @param opts: the command line options selected by the user
694 @param args: the instance or node names based on which we
695 create the final selection (in conjunction with the
698 @return: the desired exit code
702 if opts.multi_mode is None:
703 opts.multi_mode = _SHUTDOWN_INSTANCES
704 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
706 raise errors.OpPrereqError("Selection filter does not match any instances")
707 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
708 if not (opts.force_multi or not multi_on
709 or _ConfirmOperation(inames, "startup")):
711 jex = cli.JobExecutor(verbose=multi_on, cl=cl)
713 op = opcodes.OpStartupInstance(instance_name=name,
715 extra_args=opts.extra_args)
716 jex.QueueJob(name, op)
717 jex.WaitOrShow(not opts.submit_only)
721 def RebootInstance(opts, args):
722 """Reboot instance(s).
724 Depending on the parameters given, this will reboot one or more
727 @param opts: the command line options selected by the user
729 @param args: the instance or node names based on which we
730 create the final selection (in conjunction with the
733 @return: the desired exit code
737 if opts.multi_mode is None:
738 opts.multi_mode = _SHUTDOWN_INSTANCES
739 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
741 raise errors.OpPrereqError("Selection filter does not match any instances")
742 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
743 if not (opts.force_multi or not multi_on
744 or _ConfirmOperation(inames, "reboot")):
746 jex = JobExecutor(verbose=multi_on, cl=cl)
748 op = opcodes.OpRebootInstance(instance_name=name,
749 reboot_type=opts.reboot_type,
750 ignore_secondaries=opts.ignore_secondaries)
751 jex.QueueJob(name, op)
752 jex.WaitOrShow(not opts.submit_only)
756 def ShutdownInstance(opts, args):
757 """Shutdown an instance.
759 @param opts: the command line options selected by the user
761 @param args: the instance or node names based on which we
762 create the final selection (in conjunction with the
765 @return: the desired exit code
769 if opts.multi_mode is None:
770 opts.multi_mode = _SHUTDOWN_INSTANCES
771 inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
773 raise errors.OpPrereqError("Selection filter does not match any instances")
774 multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
775 if not (opts.force_multi or not multi_on
776 or _ConfirmOperation(inames, "shutdown")):
779 jex = cli.JobExecutor(verbose=multi_on, cl=cl)
781 op = opcodes.OpShutdownInstance(instance_name=name)
782 jex.QueueJob(name, op)
783 jex.WaitOrShow(not opts.submit_only)
787 def ReplaceDisks(opts, args):
788 """Replace the disks of an instance
790 @param opts: the command line options selected by the user
792 @param args: should contain only one element, the instance name
794 @return: the desired exit code
797 instance_name = args[0]
798 new_2ndary = opts.new_secondary
799 iallocator = opts.iallocator
800 if opts.disks is None:
804 disks = [int(i) for i in opts.disks.split(",")]
805 except ValueError, err:
806 raise errors.OpPrereqError("Invalid disk index passed: %s" % str(err))
807 cnt = [opts.on_primary, opts.on_secondary,
808 new_2ndary is not None, iallocator is not None].count(True)
810 raise errors.OpPrereqError("One and only one of the -p, -s, -n and -i"
811 " options must be passed")
812 elif opts.on_primary:
813 mode = constants.REPLACE_DISK_PRI
814 elif opts.on_secondary:
815 mode = constants.REPLACE_DISK_SEC
816 elif new_2ndary is not None or iallocator is not None:
818 mode = constants.REPLACE_DISK_CHG
820 op = opcodes.OpReplaceDisks(instance_name=args[0], disks=disks,
821 remote_node=new_2ndary, mode=mode,
822 iallocator=iallocator)
823 SubmitOrSend(op, opts)
827 def FailoverInstance(opts, args):
828 """Failover an instance.
830 The failover is done by shutting it down on its present node and
831 starting it on the secondary.
833 @param opts: the command line options selected by the user
835 @param args: should contain only one element, the instance name
837 @return: the desired exit code
841 instance_name = args[0]
845 _EnsureInstancesExist(cl, [instance_name])
847 usertext = ("Failover will happen to image %s."
848 " This requires a shutdown of the instance. Continue?" %
850 if not AskUser(usertext):
853 op = opcodes.OpFailoverInstance(instance_name=instance_name,
854 ignore_consistency=opts.ignore_consistency)
855 SubmitOrSend(op, opts, cl=cl)
859 def MigrateInstance(opts, args):
860 """Migrate an instance.
862 The migrate is done without shutdown.
864 @param opts: the command line options selected by the user
866 @param args: should contain only one element, the instance name
868 @return: the desired exit code
872 instance_name = args[0]
876 _EnsureInstancesExist(cl, [instance_name])
879 usertext = ("Instance %s will be recovered from a failed migration."
880 " Note that the migration procedure (including cleanup)" %
883 usertext = ("Instance %s will be migrated. Note that migration" %
885 usertext += (" is **experimental** in this version."
886 " This might impact the instance if anything goes wrong."
888 if not AskUser(usertext):
891 op = opcodes.OpMigrateInstance(instance_name=instance_name, live=opts.live,
892 cleanup=opts.cleanup)
893 SubmitOpCode(op, cl=cl)
897 def ConnectToInstanceConsole(opts, args):
898 """Connect to the console of an instance.
900 @param opts: the command line options selected by the user
902 @param args: should contain only one element, the instance name
904 @return: the desired exit code
907 instance_name = args[0]
909 op = opcodes.OpConnectConsole(instance_name=instance_name)
910 cmd = SubmitOpCode(op)
912 if opts.show_command:
913 ToStdout("%s", utils.ShellQuoteArgs(cmd))
916 os.execvp(cmd[0], cmd)
918 ToStderr("Can't run console command %s with arguments:\n'%s'",
919 cmd[0], " ".join(cmd))
923 def _FormatLogicalID(dev_type, logical_id):
924 """Formats the logical_id of a disk.
927 if dev_type == constants.LD_DRBD8:
928 node_a, node_b, port, minor_a, minor_b, key = logical_id
930 ("nodeA", "%s, minor=%s" % (node_a, minor_a)),
931 ("nodeB", "%s, minor=%s" % (node_b, minor_b)),
935 elif dev_type == constants.LD_LV:
936 vg_name, lv_name = logical_id
937 data = ["%s/%s" % (vg_name, lv_name)]
939 data = [str(logical_id)]
944 def _FormatBlockDevInfo(idx, top_level, dev, static):
945 """Show block device information.
947 This is only used by L{ShowInstanceConfig}, but it's too big to be
948 left for an inline definition.
951 @param idx: the index of the current disk
952 @type top_level: boolean
953 @param top_level: if this a top-level disk?
955 @param dev: dictionary with disk information
956 @type static: boolean
957 @param static: wheter the device information doesn't contain
958 runtime information but only static data
959 @return: a list of either strings, tuples or lists
960 (which should be formatted at a higher indent level)
963 def helper(dtype, status):
964 """Format one line for physical device status.
967 @param dtype: a constant from the L{constants.LDS_BLOCK} set
969 @param status: a tuple as returned from L{backend.FindBlockDevice}
970 @return: the string representing the status
976 (path, major, minor, syncp, estt, degr, ldisk) = status
980 major_string = str(major)
985 minor_string = str(minor)
987 txt += ("%s (%s:%s)" % (path, major_string, minor_string))
988 if dtype in (constants.LD_DRBD8, ):
989 if syncp is not None:
990 sync_text = "*RECOVERING* %5.2f%%," % syncp
992 sync_text += " ETA %ds" % estt
994 sync_text += " ETA unknown"
996 sync_text = "in sync"
998 degr_text = "*DEGRADED*"
1002 ldisk_text = " *MISSING DISK*"
1005 txt += (" %s, status %s%s" % (sync_text, degr_text, ldisk_text))
1006 elif dtype == constants.LD_LV:
1008 ldisk_text = " *FAILED* (failed drive?)"
1016 if dev["iv_name"] is not None:
1017 txt = dev["iv_name"]
1019 txt = "disk %d" % idx
1021 txt = "child %d" % idx
1022 d1 = ["- %s: %s" % (txt, dev["dev_type"])]
1025 data.append(("access mode", dev["mode"]))
1026 if dev["logical_id"] is not None:
1028 l_id = _FormatLogicalID(dev["dev_type"], dev["logical_id"])
1030 l_id = [str(dev["logical_id"])]
1032 data.append(("logical_id", l_id[0]))
1035 elif dev["physical_id"] is not None:
1036 data.append("physical_id:")
1037 data.append([dev["physical_id"]])
1039 data.append(("on primary", helper(dev["dev_type"], dev["pstatus"])))
1040 if dev["sstatus"] and not static:
1041 data.append(("on secondary", helper(dev["dev_type"], dev["sstatus"])))
1044 data.append("child devices:")
1045 for c_idx, child in enumerate(dev["children"]):
1046 data.append(_FormatBlockDevInfo(c_idx, False, child, static))
1051 def _FormatList(buf, data, indent_level):
1052 """Formats a list of data at a given indent level.
1054 If the element of the list is:
1055 - a string, it is simply formatted as is
1056 - a tuple, it will be split into key, value and the all the
1057 values in a list will be aligned all at the same start column
1058 - a list, will be recursively formatted
1061 @param buf: the buffer into which we write the output
1062 @param data: the list to format
1063 @type indent_level: int
1064 @param indent_level: the indent level to format at
1067 max_tlen = max([len(elem[0]) for elem in data
1068 if isinstance(elem, tuple)] or [0])
1070 if isinstance(elem, basestring):
1071 buf.write("%*s%s\n" % (2*indent_level, "", elem))
1072 elif isinstance(elem, tuple):
1074 spacer = "%*s" % (max_tlen - len(key), "")
1075 buf.write("%*s%s:%s %s\n" % (2*indent_level, "", key, spacer, value))
1076 elif isinstance(elem, list):
1077 _FormatList(buf, elem, indent_level+1)
1079 def ShowInstanceConfig(opts, args):
1080 """Compute instance run-time status.
1082 @param opts: the command line options selected by the user
1084 @param args: either an empty list, and then we query all
1085 instances, or should contain a list of instance names
1087 @return: the desired exit code
1091 op = opcodes.OpQueryInstanceData(instances=args, static=opts.static)
1092 result = SubmitOpCode(op)
1094 ToStdout("No instances.")
1099 for instance_name in result:
1100 instance = result[instance_name]
1101 buf.write("Instance name: %s\n" % instance["name"])
1102 buf.write("State: configured to be %s" % instance["config_state"])
1104 buf.write(", actual state is %s" % instance["run_state"])
1106 ##buf.write("Considered for memory checks in cluster verify: %s\n" %
1107 ## instance["auto_balance"])
1108 buf.write(" Nodes:\n")
1109 buf.write(" - primary: %s\n" % instance["pnode"])
1110 buf.write(" - secondaries: %s\n" % ", ".join(instance["snodes"]))
1111 buf.write(" Operating system: %s\n" % instance["os"])
1112 if instance.has_key("network_port"):
1113 buf.write(" Allocated network port: %s\n" % instance["network_port"])
1114 buf.write(" Hypervisor: %s\n" % instance["hypervisor"])
1115 if instance["hypervisor"] == constants.HT_XEN_PVM:
1116 hvattrs = ((constants.HV_KERNEL_PATH, "kernel path"),
1117 (constants.HV_INITRD_PATH, "initrd path"))
1118 elif instance["hypervisor"] == constants.HT_XEN_HVM:
1119 hvattrs = ((constants.HV_BOOT_ORDER, "boot order"),
1120 (constants.HV_ACPI, "ACPI"),
1121 (constants.HV_PAE, "PAE"),
1122 (constants.HV_CDROM_IMAGE_PATH, "virtual CDROM"),
1123 (constants.HV_NIC_TYPE, "NIC type"),
1124 (constants.HV_DISK_TYPE, "Disk type"),
1125 (constants.HV_VNC_BIND_ADDRESS, "VNC bind address"),
1127 # custom console information for HVM
1128 vnc_bind_address = instance["hv_actual"][constants.HV_VNC_BIND_ADDRESS]
1129 if vnc_bind_address == constants.BIND_ADDRESS_GLOBAL:
1130 vnc_console_port = "%s:%s" % (instance["pnode"],
1131 instance["network_port"])
1132 elif vnc_bind_address == constants.LOCALHOST_IP_ADDRESS:
1133 vnc_console_port = "%s:%s on node %s" % (vnc_bind_address,
1134 instance["network_port"],
1137 vnc_console_port = "%s:%s" % (vnc_bind_address,
1138 instance["network_port"])
1139 buf.write(" - console connection: vnc to %s\n" % vnc_console_port)
1142 # auto-handle other hypervisor types
1143 hvattrs = [(key, key) for key in instance["hv_actual"]]
1145 for key, desc in hvattrs:
1146 if key in instance["hv_instance"]:
1147 val = instance["hv_instance"][key]
1149 val = "default (%s)" % instance["hv_actual"][key]
1150 buf.write(" - %s: %s\n" % (desc, val))
1151 buf.write(" Hardware:\n")
1152 buf.write(" - VCPUs: %d\n" %
1153 instance["be_actual"][constants.BE_VCPUS])
1154 buf.write(" - memory: %dMiB\n" %
1155 instance["be_actual"][constants.BE_MEMORY])
1156 buf.write(" - NICs:\n")
1157 for idx, (mac, ip, bridge) in enumerate(instance["nics"]):
1158 buf.write(" - nic/%d: MAC: %s, IP: %s, bridge: %s\n" %
1159 (idx, mac, ip, bridge))
1160 buf.write(" Disks:\n")
1162 for idx, device in enumerate(instance["disks"]):
1163 _FormatList(buf, _FormatBlockDevInfo(idx, True, device, opts.static), 2)
1165 ToStdout(buf.getvalue().rstrip('\n'))
1169 def SetInstanceParams(opts, args):
1170 """Modifies an instance.
1172 All parameters take effect only at the next restart of the instance.
1174 @param opts: the command line options selected by the user
1176 @param args: should contain only one element, the instance name
1178 @return: the desired exit code
1181 if not (opts.nics or opts.disks or
1182 opts.hypervisor or opts.beparams):
1183 ToStderr("Please give at least one of the parameters.")
1186 for param in opts.beparams:
1187 if isinstance(opts.beparams[param], basestring):
1188 if opts.beparams[param].lower() == "default":
1189 opts.beparams[param] = constants.VALUE_DEFAULT
1190 elif opts.beparams[param].lower() == "none":
1191 opts.beparams[param] = constants.VALUE_NONE
1192 elif param == constants.BE_MEMORY:
1193 opts.beparams[constants.BE_MEMORY] = \
1194 utils.ParseUnit(opts.beparams[constants.BE_MEMORY])
1196 for param in opts.hypervisor:
1197 if isinstance(opts.hypervisor[param], basestring):
1198 if opts.hypervisor[param].lower() == "default":
1199 opts.hypervisor[param] = constants.VALUE_DEFAULT
1200 elif opts.hypervisor[param].lower() == "none":
1201 opts.hypervisor[param] = constants.VALUE_NONE
1203 for idx, (nic_op, nic_dict) in enumerate(opts.nics):
1205 nic_op = int(nic_op)
1206 opts.nics[idx] = (nic_op, nic_dict)
1210 for idx, (disk_op, disk_dict) in enumerate(opts.disks):
1212 disk_op = int(disk_op)
1213 opts.disks[idx] = (disk_op, disk_dict)
1216 if disk_op == constants.DDM_ADD:
1217 if 'size' not in disk_dict:
1218 raise errors.OpPrereqError("Missing required parameter 'size'")
1219 disk_dict['size'] = utils.ParseUnit(disk_dict['size'])
1221 op = opcodes.OpSetInstanceParams(instance_name=args[0],
1224 hvparams=opts.hypervisor,
1225 beparams=opts.beparams,
1228 # even if here we process the result, we allow submit only
1229 result = SubmitOrSend(op, opts)
1232 ToStdout("Modified instance %s", args[0])
1233 for param, data in result:
1234 ToStdout(" - %-5s -> %s", param, data)
1235 ToStdout("Please don't forget that these parameters take effect"
1236 " only at the next start of the instance.")
1240 # options used in more than one cmd
1241 node_opt = make_option("-n", "--node", dest="node", help="Target node",
1244 os_opt = cli_option("-o", "--os-type", dest="os", help="What OS to run",
1247 # multi-instance selection options
1248 m_force_multi = make_option("--force-multiple", dest="force_multi",
1249 help="Do not ask for confirmation when more than"
1250 " one instance is affected",
1251 action="store_true", default=False)
1253 m_pri_node_opt = make_option("--primary", dest="multi_mode",
1254 help="Filter by nodes (primary only)",
1255 const=_SHUTDOWN_NODES_PRI, action="store_const")
1257 m_sec_node_opt = make_option("--secondary", dest="multi_mode",
1258 help="Filter by nodes (secondary only)",
1259 const=_SHUTDOWN_NODES_SEC, action="store_const")
1261 m_node_opt = make_option("--node", dest="multi_mode",
1262 help="Filter by nodes (primary and secondary)",
1263 const=_SHUTDOWN_NODES_BOTH, action="store_const")
1265 m_clust_opt = make_option("--all", dest="multi_mode",
1266 help="Select all instances in the cluster",
1267 const=_SHUTDOWN_CLUSTER, action="store_const")
1269 m_inst_opt = make_option("--instance", dest="multi_mode",
1270 help="Filter by instance name [default]",
1271 const=_SHUTDOWN_INSTANCES, action="store_const")
1274 # this is defined separately due to readability only
1277 make_option("-n", "--node", dest="node",
1278 help="Target node and optional secondary node",
1279 metavar="<pnode>[:<snode>]"),
1281 keyval_option("-B", "--backend", dest="beparams",
1282 type="keyval", default={},
1283 help="Backend parameters"),
1284 make_option("-t", "--disk-template", dest="disk_template",
1285 help="Custom disk setup (diskless, file, plain or drbd)",
1286 default=None, metavar="TEMPL"),
1287 ikv_option("--disk", help="Disk information",
1288 default=[], dest="disks",
1290 type="identkeyval"),
1291 ikv_option("--net", help="NIC information",
1292 default=[], dest="nics",
1294 type="identkeyval"),
1295 make_option("--no-nics", default=False, action="store_true",
1296 help="Do not create any network cards for the instance"),
1297 make_option("--no-wait-for-sync", dest="wait_for_sync", default=True,
1298 action="store_false", help="Don't wait for sync (DANGEROUS!)"),
1299 make_option("--no-start", dest="start", default=True,
1300 action="store_false", help="Don't start the instance after"
1302 make_option("--no-ip-check", dest="ip_check", default=True,
1303 action="store_false", help="Don't check that the instance's IP"
1304 " is alive (only valid with --no-start)"),
1305 make_option("--file-storage-dir", dest="file_storage_dir",
1306 help="Relative path under default cluster-wide file storage dir"
1307 " to store file-based disks", default=None,
1309 make_option("--file-driver", dest="file_driver", help="Driver to use"
1310 " for image files", default="loop", metavar="<DRIVER>"),
1311 make_option("-I", "--iallocator", metavar="<NAME>",
1312 help="Select nodes for the instance automatically using the"
1313 " <NAME> iallocator plugin", default=None, type="string"),
1314 ikv_option("-H", "--hypervisor", dest="hypervisor",
1315 help="Hypervisor and hypervisor options, in the format"
1316 " hypervisor:option=value,option=value,...", default=None,
1317 type="identkeyval"),
1322 'add': (AddInstance, ARGS_ONE, add_opts,
1323 "[...] -t disk-type -n node[:secondary-node] -o os-type <name>",
1324 "Creates and adds a new instance to the cluster"),
1325 'batch-create': (BatchCreate, ARGS_ONE,
1327 "<instances_file.json>",
1328 "Create a bunch of instances based on specs in the file."),
1329 'console': (ConnectToInstanceConsole, ARGS_ONE,
1331 make_option("--show-cmd", dest="show_command",
1332 action="store_true", default=False,
1333 help=("Show command instead of executing it"))],
1334 "[--show-cmd] <instance>",
1335 "Opens a console on the specified instance"),
1336 'failover': (FailoverInstance, ARGS_ONE,
1337 [DEBUG_OPT, FORCE_OPT,
1338 make_option("--ignore-consistency", dest="ignore_consistency",
1339 action="store_true", default=False,
1340 help="Ignore the consistency of the disks on"
1345 "Stops the instance and starts it on the backup node, using"
1346 " the remote mirror (only for instances of type drbd)"),
1347 'migrate': (MigrateInstance, ARGS_ONE,
1348 [DEBUG_OPT, FORCE_OPT,
1349 make_option("--non-live", dest="live",
1350 default=True, action="store_false",
1351 help="Do a non-live migration (this usually means"
1352 " freeze the instance, save the state,"
1353 " transfer and only then resume running on the"
1354 " secondary node)"),
1355 make_option("--cleanup", dest="cleanup",
1356 default=False, action="store_true",
1357 help="Instead of performing the migration, try to"
1358 " recover from a failed cleanup. This is safe"
1359 " to run even if the instance is healthy, but it"
1360 " will create extra replication traffic and "
1361 " disrupt briefly the replication (like during the"
1365 "Migrate instance to its secondary node"
1366 " (only for instances of type drbd)"),
1367 'info': (ShowInstanceConfig, ARGS_ANY,
1369 make_option("-s", "--static", dest="static",
1370 action="store_true", default=False,
1371 help="Only show configuration data, not runtime data"),
1372 ], "[-s] [<instance>...]",
1373 "Show information on the specified instance(s)"),
1374 'list': (ListInstances, ARGS_ANY,
1375 [DEBUG_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, SYNC_OPT],
1377 "Lists the instances and their status. The available fields are"
1378 " (see the man page for details): status, oper_state, oper_ram,"
1379 " name, os, pnode, snodes, admin_state, admin_ram, disk_template,"
1380 " ip, mac, bridge, sda_size, sdb_size, vcpus, serial_no,"
1382 " The default field"
1383 " list is (in order): %s." % ", ".join(_LIST_DEF_FIELDS),
1385 'reinstall': (ReinstallInstance, ARGS_ONE,
1386 [DEBUG_OPT, FORCE_OPT, os_opt,
1387 make_option("--select-os", dest="select_os",
1388 action="store_true", default=False,
1389 help="Interactive OS reinstall, lists available"
1390 " OS templates for selection"),
1393 "[-f] <instance>", "Reinstall a stopped instance"),
1394 'remove': (RemoveInstance, ARGS_ONE,
1395 [DEBUG_OPT, FORCE_OPT,
1396 make_option("--ignore-failures", dest="ignore_failures",
1397 action="store_true", default=False,
1398 help=("Remove the instance from the cluster even"
1399 " if there are failures during the removal"
1400 " process (shutdown, disk removal, etc.)")),
1403 "[-f] <instance>", "Shuts down the instance and removes it"),
1404 'rename': (RenameInstance, ARGS_FIXED(2),
1406 make_option("--no-ip-check", dest="ignore_ip",
1407 help="Do not check that the IP of the new name"
1409 default=False, action="store_true"),
1412 "<instance> <new_name>", "Rename the instance"),
1413 'replace-disks': (ReplaceDisks, ARGS_ONE,
1415 make_option("-n", "--new-secondary", dest="new_secondary",
1416 help=("New secondary node (for secondary"
1417 " node change)"), metavar="NODE",
1419 make_option("-p", "--on-primary", dest="on_primary",
1420 default=False, action="store_true",
1421 help=("Replace the disk(s) on the primary"
1422 " node (only for the drbd template)")),
1423 make_option("-s", "--on-secondary", dest="on_secondary",
1424 default=False, action="store_true",
1425 help=("Replace the disk(s) on the secondary"
1426 " node (only for the drbd template)")),
1427 make_option("--disks", dest="disks", default=None,
1428 help=("Comma-separated list of disks"
1429 " to replace (e.g. sda) (optional,"
1430 " defaults to all disks")),
1431 make_option("-i", "--iallocator", metavar="<NAME>",
1432 help="Select new secondary for the instance"
1433 " automatically using the"
1434 " <NAME> iallocator plugin (enables"
1435 " secondary node replacement)",
1436 default=None, type="string"),
1439 "[-s|-p|-n NODE] <instance>",
1440 "Replaces all disks for the instance"),
1441 'modify': (SetInstanceParams, ARGS_ONE,
1442 [DEBUG_OPT, FORCE_OPT,
1443 keyval_option("-H", "--hypervisor", type="keyval",
1444 default={}, dest="hypervisor",
1445 help="Change hypervisor parameters"),
1446 keyval_option("-B", "--backend", type="keyval",
1447 default={}, dest="beparams",
1448 help="Change backend parameters"),
1449 ikv_option("--disk", help="Disk changes",
1450 default=[], dest="disks",
1452 type="identkeyval"),
1453 ikv_option("--net", help="NIC changes",
1454 default=[], dest="nics",
1456 type="identkeyval"),
1459 "<instance>", "Alters the parameters of an instance"),
1460 'shutdown': (ShutdownInstance, ARGS_ANY,
1461 [DEBUG_OPT, m_node_opt, m_pri_node_opt, m_sec_node_opt,
1462 m_clust_opt, m_inst_opt, m_force_multi,
1465 "<instance>", "Stops an instance"),
1466 'startup': (StartupInstance, ARGS_ANY,
1467 [DEBUG_OPT, FORCE_OPT, m_force_multi,
1468 make_option("-e", "--extra", dest="extra_args",
1469 help="Extra arguments for the instance's kernel",
1470 default=None, type="string", metavar="<PARAMS>"),
1471 m_node_opt, m_pri_node_opt, m_sec_node_opt,
1472 m_clust_opt, m_inst_opt,
1475 "<instance>", "Starts an instance"),
1477 'reboot': (RebootInstance, ARGS_ANY,
1478 [DEBUG_OPT, m_force_multi,
1479 make_option("-e", "--extra", dest="extra_args",
1480 help="Extra arguments for the instance's kernel",
1481 default=None, type="string", metavar="<PARAMS>"),
1482 make_option("-t", "--type", dest="reboot_type",
1483 help="Type of reboot: soft/hard/full",
1484 default=constants.INSTANCE_REBOOT_HARD,
1485 type="string", metavar="<REBOOT>"),
1486 make_option("--ignore-secondaries", dest="ignore_secondaries",
1487 default=False, action="store_true",
1488 help="Ignore errors from secondaries"),
1489 m_node_opt, m_pri_node_opt, m_sec_node_opt,
1490 m_clust_opt, m_inst_opt,
1493 "<instance>", "Reboots an instance"),
1494 'activate-disks': (ActivateDisks, ARGS_ONE, [DEBUG_OPT, SUBMIT_OPT],
1496 "Activate an instance's disks"),
1497 'deactivate-disks': (DeactivateDisks, ARGS_ONE, [DEBUG_OPT, SUBMIT_OPT],
1499 "Deactivate an instance's disks"),
1500 'grow-disk': (GrowDisk, ARGS_FIXED(3),
1501 [DEBUG_OPT, SUBMIT_OPT,
1502 make_option("--no-wait-for-sync",
1503 dest="wait_for_sync", default=True,
1504 action="store_false",
1505 help="Don't wait for sync (DANGEROUS!)"),
1507 "<instance> <disk> <size>", "Grow an instance's disk"),
1508 'list-tags': (ListTags, ARGS_ONE, [DEBUG_OPT],
1509 "<instance_name>", "List the tags of the given instance"),
1510 'add-tags': (AddTags, ARGS_ATLEAST(1), [DEBUG_OPT, TAG_SRC_OPT],
1511 "<instance_name> tag...", "Add tags to the given instance"),
1512 'remove-tags': (RemoveTags, ARGS_ATLEAST(1), [DEBUG_OPT, TAG_SRC_OPT],
1513 "<instance_name> tag...", "Remove tags from given instance"),
1516 #: dictionary with aliases for commands
1518 'activate_block_devs': 'activate-disks',
1519 'replace_disks': 'replace-disks',
1524 if __name__ == '__main__':
1525 sys.exit(GenericMain(commands, aliases=aliases,
1526 override={"tag_type": constants.TAG_INSTANCE}))