gnt_cluster.py 51.7 KB
Newer Older
1
#
Iustin Pop's avatar
Iustin Pop committed
2
3
#

4
# Copyright (C) 2006, 2007, 2010, 2011, 2012, 2013 Google Inc.
Iustin Pop's avatar
Iustin Pop committed
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.

Iustin Pop's avatar
Iustin Pop committed
21
"""Cluster related commands"""
Iustin Pop's avatar
Iustin Pop committed
22

23
# pylint: disable=W0401,W0613,W0614,C0103
24
# W0401: Wildcard import ganeti.cli
25
# W0613: Unused argument, since all functions follow the same API
26
# W0614: Unused import %s from wildcard import (since we need cli)
Iustin Pop's avatar
Iustin Pop committed
27
# C0103: Invalid name gnt-cluster
28

29
import os.path
30
import time
31
import OpenSSL
René Nussbaumer's avatar
René Nussbaumer committed
32
import itertools
Iustin Pop's avatar
Iustin Pop committed
33
34
35

from ganeti.cli import *
from ganeti import opcodes
36
from ganeti import constants
37
from ganeti import errors
38
from ganeti import utils
39
from ganeti import bootstrap
40
from ganeti import ssh
41
from ganeti import objects
42
from ganeti import uidpool
43
from ganeti import compat
René Nussbaumer's avatar
René Nussbaumer committed
44
from ganeti import netutils
45
from ganeti import pathutils
René Nussbaumer's avatar
René Nussbaumer committed
46
47
48
49
50
51
52


ON_OPT = cli_option("--on", default=False,
                    action="store_true", dest="on",
                    help="Recover from an EPO")

GROUPS_OPT = cli_option("--groups", default=False,
Iustin Pop's avatar
Iustin Pop committed
53
54
                        action="store_true", dest="groups",
                        help="Arguments are node groups instead of nodes")
René Nussbaumer's avatar
René Nussbaumer committed
55

56
57
58
59
FORCE_FAILOVER = cli_option("--yes-do-it", dest="yes_do_it",
                            help="Override interactive check for --no-voting",
                            default=False, action="store_true")

René Nussbaumer's avatar
René Nussbaumer committed
60
61
62
_EPO_PING_INTERVAL = 30 # 30 seconds between pings
_EPO_PING_TIMEOUT = 1 # 1 second
_EPO_REACHABLE_TIMEOUT = 15 * 60 # 15 minutes
Iustin Pop's avatar
Iustin Pop committed
63
64


65
@UsesRPC
Iustin Pop's avatar
Iustin Pop committed
66
67
68
def InitCluster(opts, args):
  """Initialize the cluster.

69
70
71
72
73
74
  @param opts: the command line options selected by the user
  @type args: list
  @param args: should contain only one element, the desired
      cluster name
  @rtype: int
  @return: the desired exit code
Iustin Pop's avatar
Iustin Pop committed
75
76

  """
77
  if not opts.lvm_storage and opts.vg_name:
78
    ToStderr("Options --no-lvm-storage and --vg-name conflict.")
79
80
81
82
83
84
    return 1

  vg_name = opts.vg_name
  if opts.lvm_storage and not opts.vg_name:
    vg_name = constants.DEFAULT_VG

85
86
87
88
89
90
91
92
  if not opts.drbd_storage and opts.drbd_helper:
    ToStderr("Options --no-drbd-storage and --drbd-usermode-helper conflict.")
    return 1

  drbd_helper = opts.drbd_helper
  if opts.drbd_storage and not opts.drbd_helper:
    drbd_helper = constants.DEFAULT_DRBD_HELPER

93
94
95
96
  master_netdev = opts.master_netdev
  if master_netdev is None:
    master_netdev = constants.DEFAULT_BRIDGE

97
  hvlist = opts.enabled_hypervisors
98
99
  if hvlist is None:
    hvlist = constants.DEFAULT_ENABLED_HYPERVISOR
100
  hvlist = hvlist.split(",")
101

102
  hvparams = dict(opts.hvparams)
103
  beparams = opts.beparams
104
  nicparams = opts.nicparams
105

106
107
108
109
110
111
112
113
114
115
  diskparams = dict(opts.diskparams)

  # check the disk template types here, as we cannot rely on the type check done
  # by the opcode parameter types
  diskparams_keys = set(diskparams.keys())
  if not (diskparams_keys <= constants.DISK_TEMPLATES):
    unknown = utils.NiceSort(diskparams_keys - constants.DISK_TEMPLATES)
    ToStderr("Disk templates unknown: %s" % utils.CommaJoin(unknown))
    return 1

116
  # prepare beparams dict
117
  beparams = objects.FillDict(constants.BEC_DEFAULTS, beparams)
118
  utils.ForceDictType(beparams, constants.BES_PARAMETER_COMPAT)
119

120
121
122
123
  # prepare nicparams dict
  nicparams = objects.FillDict(constants.NICC_DEFAULTS, nicparams)
  utils.ForceDictType(nicparams, constants.NICS_PARAMETER_TYPES)

124
125
126
127
128
129
130
  # prepare ndparams dict
  if opts.ndparams is None:
    ndparams = dict(constants.NDC_DEFAULTS)
  else:
    ndparams = objects.FillDict(constants.NDC_DEFAULTS, opts.ndparams)
    utils.ForceDictType(ndparams, constants.NDS_PARAMETER_TYPES)

131
132
133
134
  # prepare hvparams dict
  for hv in constants.HYPER_TYPES:
    if hv not in hvparams:
      hvparams[hv] = {}
135
    hvparams[hv] = objects.FillDict(constants.HVC_DEFAULTS[hv], hvparams[hv])
136
    utils.ForceDictType(hvparams[hv], constants.HVS_PARAMETER_TYPES)
137

138
139
140
141
142
143
144
145
  # prepare diskparams dict
  for templ in constants.DISK_TEMPLATES:
    if templ not in diskparams:
      diskparams[templ] = {}
    diskparams[templ] = objects.FillDict(constants.DISK_DT_DEFAULTS[templ],
                                         diskparams[templ])
    utils.ForceDictType(diskparams[templ], constants.DISK_DT_TYPES)

146
  # prepare ipolicy dict
147
  ipolicy = CreateIPolicyFromOpts(
148
149
150
151
152
153
154
    ispecs_mem_size=opts.ispecs_mem_size,
    ispecs_cpu_count=opts.ispecs_cpu_count,
    ispecs_disk_count=opts.ispecs_disk_count,
    ispecs_disk_size=opts.ispecs_disk_size,
    ispecs_nic_count=opts.ispecs_nic_count,
    ipolicy_disk_templates=opts.ipolicy_disk_templates,
    ipolicy_vcpu_ratio=opts.ipolicy_vcpu_ratio,
155
    ipolicy_spindle_ratio=opts.ipolicy_spindle_ratio,
156
    fill_all=True)
157

158
159
160
  if opts.candidate_pool_size is None:
    opts.candidate_pool_size = constants.MASTER_POOL_SIZE_DEFAULT

161
162
163
  if opts.mac_prefix is None:
    opts.mac_prefix = constants.DEFAULT_MAC_PREFIX

164
165
166
167
  uid_pool = opts.uid_pool
  if uid_pool is not None:
    uid_pool = uidpool.ParseUidPool(uid_pool)

168
169
170
  if opts.prealloc_wipe_disks is None:
    opts.prealloc_wipe_disks = False

171
172
173
174
  external_ip_setup_script = opts.use_external_mip_script
  if external_ip_setup_script is None:
    external_ip_setup_script = False

175
176
177
178
179
180
  try:
    primary_ip_version = int(opts.primary_ip_version)
  except (ValueError, TypeError), err:
    ToStderr("Invalid primary ip version value: %s" % str(err))
    return 1

181
182
183
184
185
186
187
188
  master_netmask = opts.master_netmask
  try:
    if master_netmask is not None:
      master_netmask = int(master_netmask)
  except (ValueError, TypeError), err:
    ToStderr("Invalid master netmask value: %s" % str(err))
    return 1

189
190
191
192
193
194
195
  if opts.disk_state:
    disk_state = utils.FlatToDict(opts.disk_state)
  else:
    disk_state = {}

  hv_state = dict(opts.hv_state)

196
197
  # FIXME: remove enabled_storage_types when enabled_disk_templates are
  # fully implemented.
198
199
200
201
202
203
  enabled_storage_types = opts.enabled_storage_types
  if enabled_storage_types is not None:
    enabled_storage_types = enabled_storage_types.split(",")
  else:
    enabled_storage_types = list(constants.DEFAULT_ENABLED_STORAGE_TYPES)

204
205
206
207
208
209
  enabled_disk_templates = opts.enabled_disk_templates
  if enabled_disk_templates:
    enabled_disk_templates = enabled_disk_templates.split(",")
  else:
    enabled_disk_templates = list(constants.DEFAULT_ENABLED_DISK_TEMPLATES)

210
211
212
213
  bootstrap.InitCluster(cluster_name=args[0],
                        secondary_ip=opts.secondary_ip,
                        vg_name=vg_name,
                        mac_prefix=opts.mac_prefix,
214
                        master_netmask=master_netmask,
215
                        master_netdev=master_netdev,
216
                        file_storage_dir=opts.file_storage_dir,
217
                        shared_file_storage_dir=opts.shared_file_storage_dir,
218
219
                        enabled_hypervisors=hvlist,
                        hvparams=hvparams,
220
                        beparams=beparams,
221
                        nicparams=nicparams,
222
                        ndparams=ndparams,
223
                        diskparams=diskparams,
224
                        ipolicy=ipolicy,
225
                        candidate_pool_size=opts.candidate_pool_size,
226
                        modify_etc_hosts=opts.modify_etc_hosts,
227
                        modify_ssh_setup=opts.modify_ssh_setup,
228
                        maintain_node_health=opts.maintain_node_health,
229
                        drbd_helper=drbd_helper,
230
                        uid_pool=uid_pool,
231
                        default_iallocator=opts.default_iallocator,
232
                        primary_ip_version=primary_ip_version,
233
                        prealloc_wipe_disks=opts.prealloc_wipe_disks,
234
                        use_external_mip_script=external_ip_setup_script,
235
236
                        hv_state=hv_state,
                        disk_state=disk_state,
237
                        enabled_storage_types=enabled_storage_types,
238
                        )
239
  op = opcodes.OpClusterPostInit()
240
  SubmitOpCode(op, opts=opts)
Iustin Pop's avatar
Iustin Pop committed
241
242
243
  return 0


244
@UsesRPC
Iustin Pop's avatar
Iustin Pop committed
245
246
247
def DestroyCluster(opts, args):
  """Destroy the cluster.

248
249
250
251
252
  @param opts: the command line options selected by the user
  @type args: list
  @param args: should be an empty list
  @rtype: int
  @return: the desired exit code
253

Iustin Pop's avatar
Iustin Pop committed
254
255
  """
  if not opts.yes_do_it:
256
257
    ToStderr("Destroying a cluster is irreversible. If you really want"
             " destroy this cluster, supply the --yes-do-it option.")
Iustin Pop's avatar
Iustin Pop committed
258
259
    return 1

260
  op = opcodes.OpClusterDestroy()
261
  master = SubmitOpCode(op, opts=opts)
Iustin Pop's avatar
Iustin Pop committed
262
263
264
  # if we reached this, the opcode didn't fail; we can proceed to
  # shutdown all the daemons
  bootstrap.FinalizeClusterDestroy(master)
Iustin Pop's avatar
Iustin Pop committed
265
266
267
  return 0


268
269
270
def RenameCluster(opts, args):
  """Rename the cluster.

271
272
273
274
275
  @param opts: the command line options selected by the user
  @type args: list
  @param args: should contain only one element, the new cluster name
  @rtype: int
  @return: the desired exit code
276
277

  """
278
279
280
281
282
  cl = GetClient()

  (cluster_name, ) = cl.QueryConfigValues(["cluster_name"])

  new_name = args[0]
283
  if not opts.force:
284
285
286
287
288
    usertext = ("This will rename the cluster from '%s' to '%s'. If you are"
                " connected over the network to the cluster name, the"
                " operation is very dangerous as the IP address will be"
                " removed from the node and the change may not go through."
                " Continue?") % (cluster_name, new_name)
289
    if not AskUser(usertext):
290
291
      return 1

292
  op = opcodes.OpClusterRename(name=new_name)
293
294
  result = SubmitOpCode(op, opts=opts, cl=cl)

295
296
  if result:
    ToStdout("Cluster renamed from '%s' to '%s'", cluster_name, result)
297

298
299
300
  return 0


301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
def ActivateMasterIp(opts, args):
  """Activates the master IP.

  """
  op = opcodes.OpClusterActivateMasterIp()
  SubmitOpCode(op)
  return 0


def DeactivateMasterIp(opts, args):
  """Deactivates the master IP.

  """
  if not opts.confirm:
    usertext = ("This will disable the master IP. All the open connections to"
                " the master IP will be closed. To reach the master you will"
                " need to use its node IP."
                " Continue?")
    if not AskUser(usertext):
      return 1

  op = opcodes.OpClusterDeactivateMasterIp()
  SubmitOpCode(op)
  return 0


327
328
329
330
331
332
333
334
335
336
def RedistributeConfig(opts, args):
  """Forces push of the cluster configuration.

  @param opts: the command line options selected by the user
  @type args: list
  @param args: empty list
  @rtype: int
  @return: the desired exit code

  """
337
  op = opcodes.OpClusterRedistConf()
338
339
340
341
  SubmitOrSend(op, opts)
  return 0


Iustin Pop's avatar
Iustin Pop committed
342
343
344
def ShowClusterVersion(opts, args):
  """Write version of ganeti software to the standard output.

345
346
347
348
349
  @param opts: the command line options selected by the user
  @type args: list
  @param args: should be an empty list
  @rtype: int
  @return: the desired exit code
Iustin Pop's avatar
Iustin Pop committed
350
351

  """
352
  cl = GetClient(query=True)
353
  result = cl.QueryClusterInfo()
354
355
356
357
358
  ToStdout("Software version: %s", result["software_version"])
  ToStdout("Internode protocol: %s", result["protocol_version"])
  ToStdout("Configuration format: %s", result["config_version"])
  ToStdout("OS api version: %s", result["os_api_version"])
  ToStdout("Export interface: %s", result["export_version"])
Iustin Pop's avatar
Iustin Pop committed
359
360
361
362
363
364
  return 0


def ShowClusterMaster(opts, args):
  """Write name of master node to the standard output.

365
366
367
368
369
  @param opts: the command line options selected by the user
  @type args: list
  @param args: should be an empty list
  @rtype: int
  @return: the desired exit code
Iustin Pop's avatar
Iustin Pop committed
370
371

  """
372
373
  master = bootstrap.GetMaster()
  ToStdout(master)
Iustin Pop's avatar
Iustin Pop committed
374
375
  return 0

376

377
378
def _FormatGroupedParams(paramsdict, roman=False):
  """Format Grouped parameters (be, nic, disk) by group.
379
380
381

  @type paramsdict: dict of dicts
  @param paramsdict: {group: {param: value, ...}, ...}
382
383
  @rtype: dict of dicts
  @return: copy of the input dictionaries with strings as values
384
385

  """
386
387
  ret = {}
  for (item, val) in paramsdict.items():
388
    if isinstance(val, dict):
389
      ret[item] = _FormatGroupedParams(val, roman=roman)
Guido Trotter's avatar
Guido Trotter committed
390
    elif roman and isinstance(val, int):
391
      ret[item] = compat.TryToRoman(val)
392
    else:
393
394
      ret[item] = str(val)
  return ret
Iustin Pop's avatar
Iustin Pop committed
395

396

Iustin Pop's avatar
Iustin Pop committed
397
398
399
def ShowClusterConfig(opts, args):
  """Shows cluster information.

400
401
402
403
404
405
  @param opts: the command line options selected by the user
  @type args: list
  @param args: should be an empty list
  @rtype: int
  @return: the desired exit code

Iustin Pop's avatar
Iustin Pop committed
406
  """
407
  cl = GetClient(query=True)
408
  result = cl.QueryClusterInfo()
Iustin Pop's avatar
Iustin Pop committed
409

410
  if result["tags"]:
411
    tags = utils.CommaJoin(utils.NiceSort(result["tags"]))
412
413
  else:
    tags = "(none)"
414
415
416
417
  if result["reserved_lvs"]:
    reserved_lvs = utils.CommaJoin(result["reserved_lvs"])
  else:
    reserved_lvs = "(none)"
418

419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
  info = [
    ("Cluster name", result["name"]),
    ("Cluster UUID", result["uuid"]),

    ("Creation time", utils.FormatTime(result["ctime"])),
    ("Modification time", utils.FormatTime(result["mtime"])),

    ("Master node", result["master"]),

    ("Architecture (this node)",
     "%s (%s)" % (result["architecture"][0], result["architecture"][1])),

    ("Tags", tags),

    ("Default hypervisor", result["default_hypervisor"]),
    ("Enabled hypervisors",
     utils.CommaJoin(result["enabled_hypervisors"])),

    ("Hypervisor parameters", _FormatGroupedParams(result["hvparams"])),

    ("OS-specific hypervisor parameters",
     _FormatGroupedParams(result["os_hvp"])),

    ("OS parameters", _FormatGroupedParams(result["osparams"])),

    ("Hidden OSes", utils.CommaJoin(result["hidden_os"])),
    ("Blacklisted OSes", utils.CommaJoin(result["blacklisted_os"])),

    ("Cluster parameters", [
      ("candidate pool size",
       compat.TryToRoman(result["candidate_pool_size"],
                         convert=opts.roman_integers)),
      ("master netdev", result["master_netdev"]),
      ("master netmask", result["master_netmask"]),
      ("use external master IP address setup script",
       result["use_external_mip_script"]),
      ("lvm volume group", result["volume_group_name"]),
      ("lvm reserved volumes", reserved_lvs),
      ("drbd usermode helper", result["drbd_usermode_helper"]),
      ("file storage path", result["file_storage_dir"]),
      ("shared file storage path", result["shared_file_storage_dir"]),
      ("maintenance of node health", result["maintain_node_health"]),
      ("uid pool", uidpool.FormatUidPool(result["uid_pool"])),
      ("default instance allocator", result["default_iallocator"]),
      ("primary ip version", result["primary_ip_version"]),
      ("preallocation wipe disks", result["prealloc_wipe_disks"]),
      ("OS search path", utils.CommaJoin(pathutils.OS_SEARCH_PATH)),
      ("ExtStorage Providers search path",
       utils.CommaJoin(pathutils.ES_SEARCH_PATH)),
      ("enabled storage types",
       utils.CommaJoin(result["enabled_storage_types"])),
470
471
      ("enabled disk templates",
       utils.CommaJoin(result["enabled_disk_templates"])),
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
      ]),

    ("Default node parameters",
     _FormatGroupedParams(result["ndparams"], roman=opts.roman_integers)),

    ("Default instance parameters",
     _FormatGroupedParams(result["beparams"], roman=opts.roman_integers)),

    ("Default nic parameters",
     _FormatGroupedParams(result["nicparams"], roman=opts.roman_integers)),

    ("Default disk parameters",
     _FormatGroupedParams(result["diskparams"], roman=opts.roman_integers)),

    ("Instance policy - limits for instances",
487
     FormatPolicyInfo(result["ipolicy"], None, True)),
488
489
490
    ]

  PrintGenericInfo(info)
Iustin Pop's avatar
Iustin Pop committed
491
492
493
494
495
496
  return 0


def ClusterCopyFile(opts, args):
  """Copy a file from master to some nodes.

497
498
499
500
501
502
  @param opts: the command line options selected by the user
  @type args: list
  @param args: should contain only one element, the path of
      the file to be copied
  @rtype: int
  @return: the desired exit code
Iustin Pop's avatar
Iustin Pop committed
503
504

  """
505
506
  filename = args[0]
  if not os.path.exists(filename):
507
508
    raise errors.OpPrereqError("No such filename '%s'" % filename,
                               errors.ECODE_INVAL)
509

Iustin Pop's avatar
Iustin Pop committed
510
511
512
513
  cl = GetClient()

  cluster_name = cl.QueryConfigValues(["cluster_name"])[0]

514
  results = GetOnlineNodes(nodes=opts.nodes, cl=cl, filter_master=True,
515
516
                           secondary_ips=opts.use_replication_network,
                           nodegroup=opts.nodegroup)
Michael Hanselmann's avatar
Michael Hanselmann committed
517

518
  srun = ssh.SshRunner(cluster_name)
519
520
  for node in results:
    if not srun.CopyFileToNode(node, filename):
521
      ToStderr("Copy of file %s to node %s failed", filename, node)
522

Iustin Pop's avatar
Iustin Pop committed
523
524
525
526
527
528
  return 0


def RunClusterCommand(opts, args):
  """Run a command on some nodes.

529
530
531
532
533
  @param opts: the command line options selected by the user
  @type args: list
  @param args: should contain the command to be run and its arguments
  @rtype: int
  @return: the desired exit code
Iustin Pop's avatar
Iustin Pop committed
534
535

  """
Iustin Pop's avatar
Iustin Pop committed
536
  cl = GetClient()
Michael Hanselmann's avatar
Michael Hanselmann committed
537

Iustin Pop's avatar
Iustin Pop committed
538
  command = " ".join(args)
539

540
  nodes = GetOnlineNodes(nodes=opts.nodes, cl=cl, nodegroup=opts.nodegroup)
Iustin Pop's avatar
Iustin Pop committed
541
542
543

  cluster_name, master_node = cl.QueryConfigValues(["cluster_name",
                                                    "master_node"])
544

Iustin Pop's avatar
Iustin Pop committed
545
  srun = ssh.SshRunner(cluster_name=cluster_name)
546

Michael Hanselmann's avatar
Michael Hanselmann committed
547
  # Make sure master node is at list end
548
549
550
551
552
  if master_node in nodes:
    nodes.remove(master_node)
    nodes.append(master_node)

  for name in nodes:
Michael Hanselmann's avatar
Michael Hanselmann committed
553
    result = srun.Run(name, constants.SSH_LOGIN_USER, command)
554
555
556
557
558

    if opts.failure_only and result.exit_code == constants.EXIT_SUCCESS:
      # Do not output anything for successful commands
      continue

559
    ToStdout("------------------------------------------------")
560
561
562
563
564
565
    if opts.show_machine_names:
      for line in result.output.splitlines():
        ToStdout("%s: %s", name, line)
    else:
      ToStdout("node: %s", name)
      ToStdout("%s", result.output)
566
    ToStdout("return code = %s", result.exit_code)
567
568

  return 0
Iustin Pop's avatar
Iustin Pop committed
569
570
571
572
573


def VerifyCluster(opts, args):
  """Verify integrity of cluster, performing various test on nodes.

574
575
576
577
578
  @param opts: the command line options selected by the user
  @type args: list
  @param args: should be an empty list
  @rtype: int
  @return: the desired exit code
Iustin Pop's avatar
Iustin Pop committed
579
580

  """
Iustin Pop's avatar
Iustin Pop committed
581
  skip_checks = []
582

583
584
  if opts.skip_nplusone_mem:
    skip_checks.append(constants.VERIFY_NPLUSONE_MEM)
585

586
  cl = GetClient()
587

588
589
590
591
  op = opcodes.OpClusterVerify(verbose=opts.verbose,
                               error_codes=opts.error_codes,
                               debug_simulate_errors=opts.simulate_errors,
                               skip_checks=skip_checks,
592
                               ignore_errors=opts.ignore_errors,
593
594
                               group_name=opts.nodegroup)
  result = SubmitOpCode(op, cl=cl, opts=opts)
595

596
597
598
599
600
  # Keep track of submitted jobs
  jex = JobExecutor(cl=cl, opts=opts)

  for (status, job_id) in result[constants.JOB_IDS_KEY]:
    jex.AddJobId(None, status, job_id)
601

602
  results = jex.GetResults()
603
604
605
606
607
608
609
610
611
612
613
614

  (bad_jobs, bad_results) = \
    map(len,
        # Convert iterators to lists
        map(list,
            # Count errors
            map(compat.partial(itertools.ifilterfalse, bool),
                # Convert result to booleans in a tuple
                zip(*((job_success, len(op_results) == 1 and op_results[0])
                      for (job_success, op_results) in results)))))

  if bad_jobs == 0 and bad_results == 0:
615
    rcode = constants.EXIT_SUCCESS
Guido Trotter's avatar
Guido Trotter committed
616
  else:
617
    rcode = constants.EXIT_FAILURE
618
619
    if bad_jobs > 0:
      ToStdout("%s job(s) failed while verifying the cluster.", bad_jobs)
620
621

  return rcode
Iustin Pop's avatar
Iustin Pop committed
622
623


624
625
626
def VerifyDisks(opts, args):
  """Verify integrity of cluster disks.

627
628
629
630
631
  @param opts: the command line options selected by the user
  @type args: list
  @param args: should be an empty list
  @rtype: int
  @return: the desired exit code
632
633

  """
634
635
  cl = GetClient()

636
  op = opcodes.OpClusterVerifyDisks()
637

638
639
640
641
642
643
644
  result = SubmitOpCode(op, cl=cl, opts=opts)

  # Keep track of submitted jobs
  jex = JobExecutor(cl=cl, opts=opts)

  for (status, job_id) in result[constants.JOB_IDS_KEY]:
    jex.AddJobId(None, status, job_id)
645

646
  retcode = constants.EXIT_SUCCESS
647

648
649
650
651
652
653
654
  for (status, result) in jex.GetResults():
    if not status:
      ToStdout("Job failed: %s", result)
      continue

    ((bad_nodes, instances, missing), ) = result

655
656
    for node, text in bad_nodes.items():
      ToStdout("Error gathering data on node %s: %s",
657
               node, utils.SafeEncode(text[-400:]))
658
      retcode = constants.EXIT_FAILURE
659
      ToStdout("You need to fix these nodes first before fixing instances")
660

661
    for iname in instances:
662
663
      if iname in missing:
        continue
664
      op = opcodes.OpInstanceActivateDisks(instance_name=iname)
665
      try:
666
        ToStdout("Activating disks for instance '%s'", iname)
667
        SubmitOpCode(op, opts=opts, cl=cl)
668
669
670
      except errors.GenericError, err:
        nret, msg = FormatError(err)
        retcode |= nret
671
        ToStderr("Error activating disks for instance %s: %s", iname, msg)
672

673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
    if missing:
      for iname, ival in missing.iteritems():
        all_missing = compat.all(x[0] in bad_nodes for x in ival)
        if all_missing:
          ToStdout("Instance %s cannot be verified as it lives on"
                   " broken nodes", iname)
        else:
          ToStdout("Instance %s has missing logical volumes:", iname)
          ival.sort()
          for node, vol in ival:
            if node in bad_nodes:
              ToStdout("\tbroken node %s /dev/%s", node, vol)
            else:
              ToStdout("\t%s /dev/%s", node, vol)

      ToStdout("You need to replace or recreate disks for all the above"
               " instances if this message persists after fixing broken nodes.")
      retcode = constants.EXIT_FAILURE
691
692
    elif not instances:
      ToStdout("No disks need to be activated.")
693
694
695
696

  return retcode


697
698
699
700
701
702
703
704
705
706
def RepairDiskSizes(opts, args):
  """Verify sizes of cluster disks.

  @param opts: the command line options selected by the user
  @type args: list
  @param args: optional list of instances to restrict check to
  @rtype: int
  @return: the desired exit code

  """
707
  op = opcodes.OpClusterRepairDiskSizes(instances=args)
708
  SubmitOpCode(op, opts=opts)
709
710


711
@UsesRPC
Iustin Pop's avatar
Iustin Pop committed
712
713
714
715
716
717
718
def MasterFailover(opts, args):
  """Failover the master node.

  This command, when run on a non-master node, will cause the current
  master to cease being master, and the non-master to become new
  master.

719
720
721
722
723
724
  @param opts: the command line options selected by the user
  @type args: list
  @param args: should be an empty list
  @rtype: int
  @return: the desired exit code

Iustin Pop's avatar
Iustin Pop committed
725
  """
726
  if opts.no_voting and not opts.yes_do_it:
727
728
729
730
731
732
733
734
    usertext = ("This will perform the failover even if most other nodes"
                " are down, or if this node is outdated. This is dangerous"
                " as it can lead to a non-consistent cluster. Check the"
                " gnt-cluster(8) man page before proceeding. Continue?")
    if not AskUser(usertext):
      return 1

  return bootstrap.MasterFailover(no_voting=opts.no_voting)
Iustin Pop's avatar
Iustin Pop committed
735
736


Iustin Pop's avatar
Iustin Pop committed
737
738
739
740
741
742
743
744
745
746
747
748
749
750
def MasterPing(opts, args):
  """Checks if the master is alive.

  @param opts: the command line options selected by the user
  @type args: list
  @param args: should be an empty list
  @rtype: int
  @return: the desired exit code

  """
  try:
    cl = GetClient()
    cl.QueryClusterInfo()
    return 0
751
  except Exception: # pylint: disable=W0703
Iustin Pop's avatar
Iustin Pop committed
752
753
754
    return 1


Iustin Pop's avatar
Iustin Pop committed
755
756
757
def SearchTags(opts, args):
  """Searches the tags on all the cluster.

758
759
760
761
762
763
  @param opts: the command line options selected by the user
  @type args: list
  @param args: should contain only one element, the tag pattern
  @rtype: int
  @return: the desired exit code

Iustin Pop's avatar
Iustin Pop committed
764
  """
765
  op = opcodes.OpTagsSearch(pattern=args[0])
766
  result = SubmitOpCode(op, opts=opts)
Iustin Pop's avatar
Iustin Pop committed
767
768
769
770
771
  if not result:
    return 1
  result = list(result)
  result.sort()
  for path, tag in result:
772
    ToStdout("%s %s", path, tag)
Iustin Pop's avatar
Iustin Pop committed
773
774


775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
def _ReadAndVerifyCert(cert_filename, verify_private_key=False):
  """Reads and verifies an X509 certificate.

  @type cert_filename: string
  @param cert_filename: the path of the file containing the certificate to
                        verify encoded in PEM format
  @type verify_private_key: bool
  @param verify_private_key: whether to verify the private key in addition to
                             the public certificate
  @rtype: string
  @return: a string containing the PEM-encoded certificate.

  """
  try:
    pem = utils.ReadFile(cert_filename)
  except IOError, err:
    raise errors.X509CertError(cert_filename,
                               "Unable to read certificate: %s" % str(err))

  try:
    OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM, pem)
  except Exception, err:
    raise errors.X509CertError(cert_filename,
                               "Unable to load certificate: %s" % str(err))

  if verify_private_key:
    try:
      OpenSSL.crypto.load_privatekey(OpenSSL.crypto.FILETYPE_PEM, pem)
    except Exception, err:
      raise errors.X509CertError(cert_filename,
                                 "Unable to load private key: %s" % str(err))

  return pem


Iustin Pop's avatar
Iustin Pop committed
810
def _RenewCrypto(new_cluster_cert, new_rapi_cert, # pylint: disable=R0911
811
812
813
                 rapi_cert_filename, new_spice_cert, spice_cert_filename,
                 spice_cacert_filename, new_confd_hmac_key, new_cds,
                 cds_filename, force):
814
815
816
817
818
819
820
821
  """Renews cluster certificates, keys and secrets.

  @type new_cluster_cert: bool
  @param new_cluster_cert: Whether to generate a new cluster certificate
  @type new_rapi_cert: bool
  @param new_rapi_cert: Whether to generate a new RAPI certificate
  @type rapi_cert_filename: string
  @param rapi_cert_filename: Path to file containing new RAPI certificate
822
823
824
825
826
827
828
  @type new_spice_cert: bool
  @param new_spice_cert: Whether to generate a new SPICE certificate
  @type spice_cert_filename: string
  @param spice_cert_filename: Path to file containing new SPICE certificate
  @type spice_cacert_filename: string
  @param spice_cacert_filename: Path to file containing the certificate of the
                                CA that signed the SPICE certificate
829
830
  @type new_confd_hmac_key: bool
  @param new_confd_hmac_key: Whether to generate a new HMAC key
Michael Hanselmann's avatar
Michael Hanselmann committed
831
832
833
834
  @type new_cds: bool
  @param new_cds: Whether to generate a new cluster domain secret
  @type cds_filename: string
  @param cds_filename: Path to file containing new cluster domain secret
835
836
837
838
839
  @type force: bool
  @param force: Whether to ask user for confirmation

  """
  if new_rapi_cert and rapi_cert_filename:
840
    ToStderr("Only one of the --new-rapi-certificate and --rapi-certificate"
841
842
843
             " options can be specified at the same time.")
    return 1

Michael Hanselmann's avatar
Michael Hanselmann committed
844
845
846
847
848
849
  if new_cds and cds_filename:
    ToStderr("Only one of the --new-cluster-domain-secret and"
             " --cluster-domain-secret options can be specified at"
             " the same time.")
    return 1

850
851
852
853
  if new_spice_cert and (spice_cert_filename or spice_cacert_filename):
    ToStderr("When using --new-spice-certificate, the --spice-certificate"
             " and --spice-ca-certificate must not be used.")
    return 1
854

855
856
857
858
  if bool(spice_cacert_filename) ^ bool(spice_cert_filename):
    ToStderr("Both --spice-certificate and --spice-ca-certificate must be"
             " specified.")
    return 1
859

860
861
862
863
864
865
866
867
868
869
  rapi_cert_pem, spice_cert_pem, spice_cacert_pem = (None, None, None)
  try:
    if rapi_cert_filename:
      rapi_cert_pem = _ReadAndVerifyCert(rapi_cert_filename, True)
    if spice_cert_filename:
      spice_cert_pem = _ReadAndVerifyCert(spice_cert_filename, True)
      spice_cacert_pem = _ReadAndVerifyCert(spice_cacert_filename)
  except errors.X509CertError, err:
    ToStderr("Unable to load X509 certificate from %s: %s", err[0], err[1])
    return 1
870

Michael Hanselmann's avatar
Michael Hanselmann committed
871
872
873
  if cds_filename:
    try:
      cds = utils.ReadFile(cds_filename)
874
    except Exception, err: # pylint: disable=W0703
Michael Hanselmann's avatar
Michael Hanselmann committed
875
876
877
878
879
880
      ToStderr("Can't load new cluster domain secret from %s: %s" %
               (cds_filename, str(err)))
      return 1
  else:
    cds = None

881
882
883
884
885
886
887
888
  if not force:
    usertext = ("This requires all daemons on all nodes to be restarted and"
                " may take some time. Continue?")
    if not AskUser(usertext):
      return 1

  def _RenewCryptoInner(ctx):
    ctx.feedback_fn("Updating certificates and keys")
889
890
891
    bootstrap.GenerateClusterCrypto(new_cluster_cert,
                                    new_rapi_cert,
                                    new_spice_cert,
892
                                    new_confd_hmac_key,
Michael Hanselmann's avatar
Michael Hanselmann committed
893
894
                                    new_cds,
                                    rapi_cert_pem=rapi_cert_pem,
895
896
                                    spice_cert_pem=spice_cert_pem,
                                    spice_cacert_pem=spice_cacert_pem,
Michael Hanselmann's avatar
Michael Hanselmann committed
897
                                    cds=cds)
898
899
900
901

    files_to_copy = []

    if new_cluster_cert:
902
      files_to_copy.append(pathutils.NODED_CERT_FILE)
903
904

    if new_rapi_cert or rapi_cert_pem:
905
      files_to_copy.append(pathutils.RAPI_CERT_FILE)
906

907
    if new_spice_cert or spice_cert_pem:
908
909
      files_to_copy.append(pathutils.SPICE_CERT_FILE)
      files_to_copy.append(pathutils.SPICE_CACERT_FILE)
910

911
    if new_confd_hmac_key:
912
      files_to_copy.append(pathutils.CONFD_HMAC_KEY)
913

Michael Hanselmann's avatar
Michael Hanselmann committed
914
    if new_cds or cds:
915
      files_to_copy.append(pathutils.CLUSTER_DOMAIN_SECRET_FILE)
Michael Hanselmann's avatar
Michael Hanselmann committed
916

917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
    if files_to_copy:
      for node_name in ctx.nonmaster_nodes:
        ctx.feedback_fn("Copying %s to %s" %
                        (", ".join(files_to_copy), node_name))
        for file_name in files_to_copy:
          ctx.ssh.CopyFileToNode(node_name, file_name)

  RunWhileClusterStopped(ToStdout, _RenewCryptoInner)

  ToStdout("All requested certificates and keys have been replaced."
           " Running \"gnt-cluster verify\" now is recommended.")

  return 0


def RenewCrypto(opts, args):
  """Renews cluster certificates, keys and secrets.

  """
  return _RenewCrypto(opts.new_cluster_cert,
                      opts.new_rapi_cert,
                      opts.rapi_cert,
939
940
941
                      opts.new_spice_cert,
                      opts.spice_cert,
                      opts.spice_cacert,
942
                      opts.new_confd_hmac_key,
Michael Hanselmann's avatar
Michael Hanselmann committed
943
944
                      opts.new_cluster_domain_secret,
                      opts.cluster_domain_secret,
945
946
947
                      opts.force)


948
949
950
def SetClusterParams(opts, args):
  """Modify the cluster.

951
952
953
954
955
  @param opts: the command line options selected by the user
  @type args: list
  @param args: should be an empty list
  @rtype: int
  @return: the desired exit code
956
957

  """
958
  if not (not opts.lvm_storage or opts.vg_name or
959
          not opts.drbd_storage or opts.drbd_helper or
960
          opts.enabled_hypervisors or opts.hvparams or
961
962
          opts.beparams or opts.nicparams or
          opts.ndparams or opts.diskparams or
963
          opts.candidate_pool_size is not None or
964
          opts.uid_pool is not None or
965
966
          opts.maintain_node_health is not None or
          opts.add_uids is not None or
967
          opts.remove_uids is not None or
968
          opts.default_iallocator is not None or
969
          opts.reserved_lvs is not None or
970
          opts.master_netdev is not None or
971
          opts.master_netmask is not None or
972
          opts.use_external_mip_script is not None or
973
974
          opts.prealloc_wipe_disks is not None or
          opts.hv_state or
975
          opts.enabled_storage_types or
976
          opts.disk_state or
977
978
979
980
981
982
          opts.ispecs_mem_size or
          opts.ispecs_cpu_count or
          opts.ispecs_disk_count or
          opts.ispecs_disk_size or
          opts.ispecs_nic_count or
          opts.ipolicy_disk_templates is not None or
983
984
          opts.ipolicy_vcpu_ratio is not None or
          opts.ipolicy_spindle_ratio is not None):
985
    ToStderr("Please give at least one of the parameters.")
986
987
988
989
    return 1

  vg_name = opts.vg_name
  if not opts.lvm_storage and opts.vg_name:
990
    ToStderr("Options --no-lvm-storage and --vg-name conflict.")
991
    return 1
992
993
994

  if not opts.lvm_storage:
    vg_name = ""
995

996
997
998
999
1000
1001
1002
1003
  drbd_helper = opts.drbd_helper
  if not opts.drbd_storage and opts.drbd_helper:
    ToStderr("Options --no-drbd-storage and --drbd-usermode-helper conflict.")
    return 1

  if not opts.drbd_storage:
    drbd_helper = ""

1004
1005
1006
1007
  hvlist = opts.enabled_hypervisors
  if hvlist is not None:
    hvlist = hvlist.split(",")

1008
1009
1010
1011
  enabled_storage_types = opts.enabled_storage_types
  if enabled_storage_types is not None:
    enabled_storage_types = enabled_storage_types.split(",")

1012
1013
  # a list of (name, dict) we can pass directly to dict() (or [])
  hvparams = dict(opts.hvparams)
Iustin Pop's avatar
Iustin Pop committed
1014
  for hv_params in hvparams.values():
1015
    utils.ForceDictType(hv_params, constants.HVS_PARAMETER_TYPES)
1016

1017
1018
  diskparams = dict(opts.diskparams)

Iustin Pop's avatar
Iustin Pop committed
1019
  for dt_params in diskparams.values():
1020
1021
    utils.ForceDictType(dt_params, constants.DISK_DT_TYPES)

1022
  beparams = opts.beparams
1023
  utils.ForceDictType(beparams, constants.BES_PARAMETER_COMPAT)
1024

1025
1026
1027
  nicparams = opts.nicparams
  utils.ForceDictType(nicparams, constants.NICS_PARAMETER_TYPES)

1028
1029
1030
  ndparams = opts.ndparams
  if ndparams is not None:
    utils.ForceDictType(ndparams, constants.NDS_PARAMETER_TYPES)
1031

1032
  ipolicy = CreateIPolicyFromOpts(
1033
1034
1035
1036
1037
1038
1039
    ispecs_mem_size=opts.ispecs_mem_size,
    ispecs_cpu_count=opts.ispecs_cpu_count,
    ispecs_disk_count=opts.ispecs_disk_count,
    ispecs_disk_size=opts.ispecs_disk_size,
    ispecs_nic_count=opts.ispecs_nic_count,
    ipolicy_disk_templates=opts.ipolicy_disk_templates,
    ipolicy_vcpu_ratio=opts.ipolicy_vcpu_ratio,
1040
    ipolicy_spindle_ratio=opts.ipolicy_spindle_ratio,
1041
    )
1042

1043
1044
  mnh = opts.maintain_node_health

1045
1046
1047
1048
  uid_pool = opts.uid_pool
  if uid_pool is not None:
    uid_pool = uidpool.ParseUidPool(uid_pool)

1049
1050
1051
1052
1053
1054
1055
1056
  add_uids = opts.add_uids
  if add_uids is not None:
    add_uids = uidpool.ParseUidPool(add_uids)

  remove_uids = opts.remove_uids
  if remove_uids is not None:
    remove_uids = uidpool.ParseUidPool(remove_uids)

1057
1058
1059
1060
1061
1062
  if opts.reserved_lvs is not None:
    if opts.reserved_lvs == "":
      opts.reserved_lvs = []
    else:
      opts.reserved_lvs = utils.UnescapeAndSplit(opts.reserved_lvs, sep=",")

1063
1064
1065
1066
1067
1068
1069
  if opts.master_netmask is not None:
    try:
      opts.master_netmask = int(opts.master_netmask)
    except ValueError:
      ToStderr("The --master-netmask option expects an int parameter.")
      return 1

1070
1071
  ext_ip_script = opts.use_external_mip_script

1072
1073
1074
1075
1076
1077
1078
  if opts.disk_state:
    disk_state = utils.FlatToDict(opts.disk_state)
  else:
    disk_state = {}

  hv_state = dict(opts.hv_state)

1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
  op = opcodes.OpClusterSetParams(
    vg_name=vg_name,
    drbd_helper=drbd_helper,
    enabled_hypervisors=hvlist,
    hvparams=hvparams,
    os_hvp=None,
    beparams=beparams,
    nicparams=nicparams,
    ndparams=ndparams,
    diskparams=diskparams,
    ipolicy=ipolicy,
    candidate_pool_size=opts.candidate_pool_size,
    maintain_node_health=mnh,
    uid_pool=uid_pool,
    add_uids=add_uids,
    remove_uids=remove_uids,
    default_iallocator=opts.default_iallocator,
    prealloc_wipe_disks=opts.prealloc_wipe_disks,
    master_netdev=opts.master_netdev,
    master_netmask=opts.master_netmask,
    reserved_lvs=opts.reserved_lvs,
    use_external_mip_script=ext_ip_script,
    hv_state=hv_state,
    disk_state=disk_state,
    enabled_storage_types=enabled_storage_types,
    )
1105
  SubmitOrSend(op, opts)
1106
1107
1108
  return 0


1109
1110
1111
def QueueOps(opts, args):
  """Queue operations.

1112
1113
1114
1115
1116
1117
  @param opts: the command line options selected by the user
  @type args: list
  @param args: should contain only one element, the subcommand
  @rtype: int
  @return: the desired exit code

1118
1119
1120
1121
1122
1123
1124
1125
1126
  """
  command = args[0]
  client = GetClient()
  if command in ("drain", "undrain"):
    drain_flag = command == "drain"
    client.SetQueueDrainFlag(drain_flag)
  elif command == "info":
    result = client.QueryConfigValues(["drain_flag"])
    if result[0]:
1127
      val = "set"
1128
    else:
1129
1130
      val = "unset"
    ToStdout("The drain flag is %s" % val)
1131
  else:
1132
1133
    raise errors.OpPrereqError("Command '%s' is not valid." % command,
                               errors.ECODE_INVAL)
1134

1135
1136
  return 0

1137

1138
1139
1140
1141
1142
1143
1144
def _ShowWatcherPause(until):
  if until is None or until < time.time():
    ToStdout("The watcher is not paused.")
  else:
    ToStdout("The watcher is paused until %s.", time.ctime(until))


1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
def WatcherOps(opts, args):
  """Watcher operations.

  @param opts: the command line options selected by the user
  @type args: list
  @param args: should contain only one element, the subcommand
  @rtype: int
  @return: the desired exit code

  """
  command = args[0]
  client = GetClient()

  if command == "continue":
    client.SetWatcherPause(None)
1160
    ToStdout("The watcher is no longer paused.")