gnt_cluster.py 51.6 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
    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,
153
154
    minmax_ispecs=opts.ipolicy_bounds_specs,
    std_ispecs=opts.ipolicy_std_specs,
155
156
    ipolicy_disk_templates=opts.ipolicy_disk_templates,
    ipolicy_vcpu_ratio=opts.ipolicy_vcpu_ratio,
157
    ipolicy_spindle_ratio=opts.ipolicy_spindle_ratio,
158
    fill_all=True)
159

160
161
162
  if opts.candidate_pool_size is None:
    opts.candidate_pool_size = constants.MASTER_POOL_SIZE_DEFAULT

163
164
165
  if opts.mac_prefix is None:
    opts.mac_prefix = constants.DEFAULT_MAC_PREFIX

166
167
168
169
  uid_pool = opts.uid_pool
  if uid_pool is not None:
    uid_pool = uidpool.ParseUidPool(uid_pool)

170
171
172
  if opts.prealloc_wipe_disks is None:
    opts.prealloc_wipe_disks = False

173
174
175
176
  external_ip_setup_script = opts.use_external_mip_script
  if external_ip_setup_script is None:
    external_ip_setup_script = False

177
178
179
180
181
182
  try:
    primary_ip_version = int(opts.primary_ip_version)
  except (ValueError, TypeError), err:
    ToStderr("Invalid primary ip version value: %s" % str(err))
    return 1

183
184
185
186
187
188
189
190
  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

191
192
193
194
195
196
197
  if opts.disk_state:
    disk_state = utils.FlatToDict(opts.disk_state)
  else:
    disk_state = {}

  hv_state = dict(opts.hv_state)

198
199
200
201
202
203
  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)

204
205
206
207
  bootstrap.InitCluster(cluster_name=args[0],
                        secondary_ip=opts.secondary_ip,
                        vg_name=vg_name,
                        mac_prefix=opts.mac_prefix,
208
                        master_netmask=master_netmask,
209
                        master_netdev=master_netdev,
210
                        file_storage_dir=opts.file_storage_dir,
211
                        shared_file_storage_dir=opts.shared_file_storage_dir,
212
213
                        enabled_hypervisors=hvlist,
                        hvparams=hvparams,
214
                        beparams=beparams,
215
                        nicparams=nicparams,
216
                        ndparams=ndparams,
217
                        diskparams=diskparams,
218
                        ipolicy=ipolicy,
219
                        candidate_pool_size=opts.candidate_pool_size,
220
                        modify_etc_hosts=opts.modify_etc_hosts,
221
                        modify_ssh_setup=opts.modify_ssh_setup,
222
                        maintain_node_health=opts.maintain_node_health,
223
                        drbd_helper=drbd_helper,
224
                        uid_pool=uid_pool,
225
                        default_iallocator=opts.default_iallocator,
226
                        primary_ip_version=primary_ip_version,
227
                        prealloc_wipe_disks=opts.prealloc_wipe_disks,
228
                        use_external_mip_script=external_ip_setup_script,
229
230
                        hv_state=hv_state,
                        disk_state=disk_state,
231
                        enabled_disk_templates=enabled_disk_templates,
232
                        )
233
  op = opcodes.OpClusterPostInit()
234
  SubmitOpCode(op, opts=opts)
Iustin Pop's avatar
Iustin Pop committed
235
236
237
  return 0


238
@UsesRPC
Iustin Pop's avatar
Iustin Pop committed
239
240
241
def DestroyCluster(opts, args):
  """Destroy the cluster.

242
243
244
245
246
  @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
247

Iustin Pop's avatar
Iustin Pop committed
248
249
  """
  if not opts.yes_do_it:
250
251
    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
252
253
    return 1

254
  op = opcodes.OpClusterDestroy()
255
  master = SubmitOpCode(op, opts=opts)
Iustin Pop's avatar
Iustin Pop committed
256
257
258
  # 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
259
260
261
  return 0


262
263
264
def RenameCluster(opts, args):
  """Rename the cluster.

265
266
267
268
269
  @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
270
271

  """
272
273
274
275
276
  cl = GetClient()

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

  new_name = args[0]
277
  if not opts.force:
278
279
280
281
282
    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)
283
    if not AskUser(usertext):
284
285
      return 1

286
  op = opcodes.OpClusterRename(name=new_name)
287
288
  result = SubmitOpCode(op, opts=opts, cl=cl)

289
290
  if result:
    ToStdout("Cluster renamed from '%s' to '%s'", cluster_name, result)
291

292
293
294
  return 0


295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
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


321
322
323
324
325
326
327
328
329
330
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

  """
331
  op = opcodes.OpClusterRedistConf()
332
333
334
335
  SubmitOrSend(op, opts)
  return 0


Iustin Pop's avatar
Iustin Pop committed
336
337
338
def ShowClusterVersion(opts, args):
  """Write version of ganeti software to the standard output.

339
340
341
342
343
  @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
344
345

  """
346
  cl = GetClient(query=True)
347
  result = cl.QueryClusterInfo()
348
349
350
351
352
  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
353
354
355
356
357
358
  return 0


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

359
360
361
362
363
  @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
364
365

  """
366
367
  master = bootstrap.GetMaster()
  ToStdout(master)
Iustin Pop's avatar
Iustin Pop committed
368
369
  return 0

370

371
372
def _FormatGroupedParams(paramsdict, roman=False):
  """Format Grouped parameters (be, nic, disk) by group.
373
374
375

  @type paramsdict: dict of dicts
  @param paramsdict: {group: {param: value, ...}, ...}
376
377
  @rtype: dict of dicts
  @return: copy of the input dictionaries with strings as values
378
379

  """
380
381
  ret = {}
  for (item, val) in paramsdict.items():
382
    if isinstance(val, dict):
383
      ret[item] = _FormatGroupedParams(val, roman=roman)
Guido Trotter's avatar
Guido Trotter committed
384
    elif roman and isinstance(val, int):
385
      ret[item] = compat.TryToRoman(val)
386
    else:
387
388
      ret[item] = str(val)
  return ret
Iustin Pop's avatar
Iustin Pop committed
389

390

Iustin Pop's avatar
Iustin Pop committed
391
392
393
def ShowClusterConfig(opts, args):
  """Shows cluster information.

394
395
396
397
398
399
  @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
400
  """
401
  cl = GetClient(query=True)
402
  result = cl.QueryClusterInfo()
Iustin Pop's avatar
Iustin Pop committed
403

404
  if result["tags"]:
405
    tags = utils.CommaJoin(utils.NiceSort(result["tags"]))
406
407
  else:
    tags = "(none)"
408
409
410
411
  if result["reserved_lvs"]:
    reserved_lvs = utils.CommaJoin(result["reserved_lvs"])
  else:
    reserved_lvs = "(none)"
412

413
414
415
416
417
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
  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)),
462
463
      ("enabled disk templates",
       utils.CommaJoin(result["enabled_disk_templates"])),
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
      ]),

    ("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",
479
     FormatPolicyInfo(result["ipolicy"], None, True)),
480
481
482
    ]

  PrintGenericInfo(info)
Iustin Pop's avatar
Iustin Pop committed
483
484
485
486
487
488
  return 0


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

489
490
491
492
493
494
  @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
495
496

  """
497
498
  filename = args[0]
  if not os.path.exists(filename):
499
500
    raise errors.OpPrereqError("No such filename '%s'" % filename,
                               errors.ECODE_INVAL)
501

Iustin Pop's avatar
Iustin Pop committed
502
503
504
505
  cl = GetClient()

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

506
  results = GetOnlineNodes(nodes=opts.nodes, cl=cl, filter_master=True,
507
508
                           secondary_ips=opts.use_replication_network,
                           nodegroup=opts.nodegroup)
Michael Hanselmann's avatar
Michael Hanselmann committed
509

510
  srun = ssh.SshRunner(cluster_name)
511
512
  for node in results:
    if not srun.CopyFileToNode(node, filename):
513
      ToStderr("Copy of file %s to node %s failed", filename, node)
514

Iustin Pop's avatar
Iustin Pop committed
515
516
517
518
519
520
  return 0


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

521
522
523
524
525
  @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
526
527

  """
Iustin Pop's avatar
Iustin Pop committed
528
  cl = GetClient()
Michael Hanselmann's avatar
Michael Hanselmann committed
529

Iustin Pop's avatar
Iustin Pop committed
530
  command = " ".join(args)
531

532
  nodes = GetOnlineNodes(nodes=opts.nodes, cl=cl, nodegroup=opts.nodegroup)
Iustin Pop's avatar
Iustin Pop committed
533
534
535

  cluster_name, master_node = cl.QueryConfigValues(["cluster_name",
                                                    "master_node"])
536

Iustin Pop's avatar
Iustin Pop committed
537
  srun = ssh.SshRunner(cluster_name=cluster_name)
538

Michael Hanselmann's avatar
Michael Hanselmann committed
539
  # Make sure master node is at list end
540
541
542
543
544
  if master_node in nodes:
    nodes.remove(master_node)
    nodes.append(master_node)

  for name in nodes:
Michael Hanselmann's avatar
Michael Hanselmann committed
545
    result = srun.Run(name, constants.SSH_LOGIN_USER, command)
546
547
548
549
550

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

551
    ToStdout("------------------------------------------------")
552
553
554
555
556
557
    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)
558
    ToStdout("return code = %s", result.exit_code)
559
560

  return 0
Iustin Pop's avatar
Iustin Pop committed
561
562
563
564
565


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

566
567
568
569
570
  @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
571
572

  """
Iustin Pop's avatar
Iustin Pop committed
573
  skip_checks = []
574

575
576
  if opts.skip_nplusone_mem:
    skip_checks.append(constants.VERIFY_NPLUSONE_MEM)
577

578
  cl = GetClient()
579

580
581
582
583
  op = opcodes.OpClusterVerify(verbose=opts.verbose,
                               error_codes=opts.error_codes,
                               debug_simulate_errors=opts.simulate_errors,
                               skip_checks=skip_checks,
584
                               ignore_errors=opts.ignore_errors,
585
586
                               group_name=opts.nodegroup)
  result = SubmitOpCode(op, cl=cl, opts=opts)
587

588
589
590
591
592
  # 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)
593

594
  results = jex.GetResults()
595
596
597
598
599
600
601
602
603
604
605
606

  (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:
607
    rcode = constants.EXIT_SUCCESS
Guido Trotter's avatar
Guido Trotter committed
608
  else:
609
    rcode = constants.EXIT_FAILURE
610
611
    if bad_jobs > 0:
      ToStdout("%s job(s) failed while verifying the cluster.", bad_jobs)
612
613

  return rcode
Iustin Pop's avatar
Iustin Pop committed
614
615


616
617
618
def VerifyDisks(opts, args):
  """Verify integrity of cluster disks.

619
620
621
622
623
  @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
624
625

  """
626
627
  cl = GetClient()

628
  op = opcodes.OpClusterVerifyDisks()
629

630
631
632
633
634
635
636
  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)
637

638
  retcode = constants.EXIT_SUCCESS
639

640
641
642
643
644
645
646
  for (status, result) in jex.GetResults():
    if not status:
      ToStdout("Job failed: %s", result)
      continue

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

647
648
    for node, text in bad_nodes.items():
      ToStdout("Error gathering data on node %s: %s",
649
               node, utils.SafeEncode(text[-400:]))
650
      retcode = constants.EXIT_FAILURE
651
      ToStdout("You need to fix these nodes first before fixing instances")
652

653
    for iname in instances:
654
655
      if iname in missing:
        continue
656
      op = opcodes.OpInstanceActivateDisks(instance_name=iname)
657
      try:
658
        ToStdout("Activating disks for instance '%s'", iname)
659
        SubmitOpCode(op, opts=opts, cl=cl)
660
661
662
      except errors.GenericError, err:
        nret, msg = FormatError(err)
        retcode |= nret
663
        ToStderr("Error activating disks for instance %s: %s", iname, msg)
664

665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
    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
683
684
    elif not instances:
      ToStdout("No disks need to be activated.")
685
686
687
688

  return retcode


689
690
691
692
693
694
695
696
697
698
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

  """
699
  op = opcodes.OpClusterRepairDiskSizes(instances=args)
700
  SubmitOpCode(op, opts=opts)
701
702


703
@UsesRPC
Iustin Pop's avatar
Iustin Pop committed
704
705
706
707
708
709
710
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.

711
712
713
714
715
716
  @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
717
  """
718
  if opts.no_voting and not opts.yes_do_it:
719
720
721
722
723
724
725
726
    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
727
728


Iustin Pop's avatar
Iustin Pop committed
729
730
731
732
733
734
735
736
737
738
739
740
741
742
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
743
  except Exception: # pylint: disable=W0703
Iustin Pop's avatar
Iustin Pop committed
744
745
746
    return 1


Iustin Pop's avatar
Iustin Pop committed
747
748
749
def SearchTags(opts, args):
  """Searches the tags on all the cluster.

750
751
752
753
754
755
  @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
756
  """
757
  op = opcodes.OpTagsSearch(pattern=args[0])
758
  result = SubmitOpCode(op, opts=opts)
Iustin Pop's avatar
Iustin Pop committed
759
760
761
762
763
  if not result:
    return 1
  result = list(result)
  result.sort()
  for path, tag in result:
764
    ToStdout("%s %s", path, tag)
Iustin Pop's avatar
Iustin Pop committed
765
766


767
768
769
770
771
772
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
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
802
def _RenewCrypto(new_cluster_cert, new_rapi_cert, # pylint: disable=R0911
803
804
805
                 rapi_cert_filename, new_spice_cert, spice_cert_filename,
                 spice_cacert_filename, new_confd_hmac_key, new_cds,
                 cds_filename, force):
806
807
808
809
810
811
812
813
  """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
814
815
816
817
818
819
820
  @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
821
822
  @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
823
824
825
826
  @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
827
828
829
830
831
  @type force: bool
  @param force: Whether to ask user for confirmation

  """
  if new_rapi_cert and rapi_cert_filename:
832
    ToStderr("Only one of the --new-rapi-certificate and --rapi-certificate"
833
834
835
             " options can be specified at the same time.")
    return 1

Michael Hanselmann's avatar
Michael Hanselmann committed
836
837
838
839
840
841
  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

842
843
844
845
  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
846

847
848
849
850
  if bool(spice_cacert_filename) ^ bool(spice_cert_filename):
    ToStderr("Both --spice-certificate and --spice-ca-certificate must be"
             " specified.")
    return 1
851

852
853
854
855
856
857
858
859
860
861
  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
862

Michael Hanselmann's avatar
Michael Hanselmann committed
863
864
865
  if cds_filename:
    try:
      cds = utils.ReadFile(cds_filename)
866
    except Exception, err: # pylint: disable=W0703
Michael Hanselmann's avatar
Michael Hanselmann committed
867
868
869
870
871
872
      ToStderr("Can't load new cluster domain secret from %s: %s" %
               (cds_filename, str(err)))
      return 1
  else:
    cds = None

873
874
875
876
877
878
879
880
  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")
881
882
883
    bootstrap.GenerateClusterCrypto(new_cluster_cert,
                                    new_rapi_cert,
                                    new_spice_cert,
884
                                    new_confd_hmac_key,
Michael Hanselmann's avatar
Michael Hanselmann committed
885
886
                                    new_cds,
                                    rapi_cert_pem=rapi_cert_pem,
887
888
                                    spice_cert_pem=spice_cert_pem,
                                    spice_cacert_pem=spice_cacert_pem,
Michael Hanselmann's avatar
Michael Hanselmann committed
889
                                    cds=cds)
890
891
892
893

    files_to_copy = []

    if new_cluster_cert:
894
      files_to_copy.append(pathutils.NODED_CERT_FILE)
895
896

    if new_rapi_cert or rapi_cert_pem:
897
      files_to_copy.append(pathutils.RAPI_CERT_FILE)
898

899
    if new_spice_cert or spice_cert_pem:
900
901
      files_to_copy.append(pathutils.SPICE_CERT_FILE)
      files_to_copy.append(pathutils.SPICE_CACERT_FILE)
902

903
    if new_confd_hmac_key:
904
      files_to_copy.append(pathutils.CONFD_HMAC_KEY)
905

Michael Hanselmann's avatar
Michael Hanselmann committed
906
    if new_cds or cds:
907
      files_to_copy.append(pathutils.CLUSTER_DOMAIN_SECRET_FILE)
Michael Hanselmann's avatar
Michael Hanselmann committed
908

909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
    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,
931
932
933
                      opts.new_spice_cert,
                      opts.spice_cert,
                      opts.spice_cacert,
934
                      opts.new_confd_hmac_key,
Michael Hanselmann's avatar
Michael Hanselmann committed
935
936
                      opts.new_cluster_domain_secret,
                      opts.cluster_domain_secret,
937
938
939
                      opts.force)


940
941
942
def SetClusterParams(opts, args):
  """Modify the cluster.

943
944
945
946
947
  @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
948
949

  """
950
  if not (not opts.lvm_storage or opts.vg_name or
951
          not opts.drbd_storage or opts.drbd_helper or
952
          opts.enabled_hypervisors or opts.hvparams or
953
954
          opts.beparams or opts.nicparams or
          opts.ndparams or opts.diskparams or
955
          opts.candidate_pool_size is not None or
956
          opts.uid_pool is not None or
957
958
          opts.maintain_node_health is not None or
          opts.add_uids is not None or
959
          opts.remove_uids is not None or
960
          opts.default_iallocator is not None or
961
          opts.reserved_lvs is not None or
962
          opts.master_netdev is not None or
963
          opts.master_netmask is not None or
964
          opts.use_external_mip_script is not None or
965
966
          opts.prealloc_wipe_disks is not None or
          opts.hv_state or
967
          opts.enabled_disk_templates or
968
          opts.disk_state or
969
970
971
972
973
          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
974
975
          opts.ipolicy_bounds_specs is not None or
          opts.ipolicy_std_specs is not None or
976
          opts.ipolicy_disk_templates is not None or
977
978
          opts.ipolicy_vcpu_ratio is not None or
          opts.ipolicy_spindle_ratio is not None):
979
    ToStderr("Please give at least one of the parameters.")
980
981
982
983
    return 1

  vg_name = opts.vg_name
  if not opts.lvm_storage and opts.vg_name:
984
    ToStderr("Options --no-lvm-storage and --vg-name conflict.")
985
    return 1
986
987
988

  if not opts.lvm_storage:
    vg_name = ""
989

990
991
992
993
994
995
996
997
  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 = ""

998
999
1000
1001
  hvlist = opts.enabled_hypervisors
  if hvlist is not None:
    hvlist = hvlist.split(",")

1002
1003
1004
1005
  enabled_disk_templates = opts.enabled_disk_templates
  if enabled_disk_templates:
    enabled_disk_templates = enabled_disk_templates.split(",")

1006
1007
  # a list of (name, dict) we can pass directly to dict() (or [])
  hvparams = dict(opts.hvparams)
Iustin Pop's avatar
Iustin Pop committed
1008
  for hv_params in hvparams.values():
1009
    utils.ForceDictType(hv_params, constants.HVS_PARAMETER_TYPES)
1010

1011
1012
  diskparams = dict(opts.diskparams)

Iustin Pop's avatar
Iustin Pop committed
1013
  for dt_params in diskparams.values():
1014
1015
    utils.ForceDictType(dt_params, constants.DISK_DT_TYPES)

1016
  beparams = opts.beparams
1017
  utils.ForceDictType(beparams, constants.BES_PARAMETER_COMPAT)
1018

1019
1020
1021
  nicparams = opts.nicparams
  utils.ForceDictType(nicparams, constants.NICS_PARAMETER_TYPES)

1022
1023
1024
  ndparams = opts.ndparams
  if ndparams is not None:
    utils.ForceDictType(ndparams, constants.NDS_PARAMETER_TYPES)
1025

1026
  ipolicy = CreateIPolicyFromOpts(
1027
1028
1029
1030
1031
    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,
1032
1033
    minmax_ispecs=opts.ipolicy_bounds_specs,
    std_ispecs=opts.ipolicy_std_specs,
1034
1035
    ipolicy_disk_templates=opts.ipolicy_disk_templates,
    ipolicy_vcpu_ratio=opts.ipolicy_vcpu_ratio,
1036
    ipolicy_spindle_ratio=opts.ipolicy_spindle_ratio,
1037
    )
1038

1039
1040
  mnh = opts.maintain_node_health

1041
1042
1043
1044
  uid_pool = opts.uid_pool
  if uid_pool is not None:
    uid_pool = uidpool.ParseUidPool(uid_pool)

1045
1046
1047
1048
1049
1050
1051
1052
  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)

1053
1054
1055
1056
1057
1058
  if opts.reserved_lvs is not None:
    if opts.reserved_lvs == "":
      opts.reserved_lvs = []
    else:
      opts.reserved_lvs = utils.UnescapeAndSplit(opts.reserved_lvs, sep=",")

1059
1060
1061
1062
1063
1064
1065
  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

1066
1067
  ext_ip_script = opts.use_external_mip_script

1068
1069
1070
1071
1072
1073
1074
  if opts.disk_state:
    disk_state = utils.FlatToDict(opts.disk_state)
  else:
    disk_state = {}

  hv_state = dict(opts.hv_state)

1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
  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,
1099
    enabled_disk_templates=enabled_disk_templates,
1100
    )
1101
  SubmitOrSend(op, opts)
1102
1103
1104
  return 0


1105
1106
1107
def QueueOps(opts, args):
  """Queue operations.

1108
1109
1110
1111
1112
1113
  @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

1114
1115
1116
1117
1118
1119
1120
1121
1122
  """
  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]:
1123
      val = "set"
1124
    else:
1125
1126
      val = "unset"
    ToStdout("The drain flag is %s" % val)
1127
  else:
1128
1129
    raise errors.OpPrereqError("Command '%s' is not valid." % command,
                               errors.ECODE_INVAL)
1130

1131
1132
  return 0

1133

1134
1135
1136
1137
1138
1139
1140
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))