bootstrap.py 44.6 KB
Newer Older
1 2 3
#
#

4
# Copyright (C) 2006, 2007, 2008, 2010, 2011, 2012 Google Inc.
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
#
# 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.


"""Functions to bootstrap a new cluster.

"""

import os
import os.path
import re
29
import logging
30
import time
31
import tempfile
32

33
from ganeti.cmdlib import cluster
34
import ganeti.rpc.node as rpc
35 36 37 38 39
from ganeti import ssh
from ganeti import utils
from ganeti import errors
from ganeti import config
from ganeti import constants
40
from ganeti import objects
41
from ganeti import ssconf
42
from ganeti import serializer
43
from ganeti import hypervisor
44
from ganeti.storage import drbd
45
from ganeti.storage import filestorage
46
from ganeti import netutils
47
from ganeti import luxi
48
from ganeti import jstore
49
from ganeti import pathutils
50
from ganeti import runtime
51

52

53 54 55
# ec_id for InitConfig's temporary reservation manager
_INITCONF_ECID = "initconfig-ecid"

56 57 58
#: After how many seconds daemon must be responsive
_DAEMON_READY_TIMEOUT = 10.0

59

60
def _InitSSHSetup():
61 62 63 64 65 66
  """Setup the SSH configuration for the cluster.

  This generates a dsa keypair for root, adds the pub key to the
  permitted hosts and adds the hostkey to its own known hosts.

  """
Michael Hanselmann's avatar
Michael Hanselmann committed
67
  priv_key, pub_key, auth_keys = ssh.GetUserFiles(constants.SSH_LOGIN_USER)
68 69 70 71 72 73 74 75 76 77 78 79 80

  for name in priv_key, pub_key:
    if os.path.exists(name):
      utils.CreateBackup(name)
    utils.RemoveFile(name)

  result = utils.RunCmd(["ssh-keygen", "-t", "dsa",
                         "-f", priv_key,
                         "-q", "-N", ""])
  if result.failed:
    raise errors.OpExecError("Could not generate ssh keypair, error %s" %
                             result.output)

81
  utils.AddAuthorizedKey(auth_keys, utils.ReadFile(pub_key))
82 83


84 85 86 87 88 89 90
def GenerateHmacKey(file_name):
  """Writes a new HMAC key.

  @type file_name: str
  @param file_name: Path to output file

  """
91 92 93 94
  utils.WriteFile(file_name, data="%s\n" % utils.GenerateSecret(), mode=0400,
                  backup=True)


95
# pylint: disable=R0913
96
def GenerateClusterCrypto(new_cluster_cert, new_rapi_cert, new_spice_cert,
97
                          new_confd_hmac_key, new_cds,
98 99
                          rapi_cert_pem=None, spice_cert_pem=None,
                          spice_cacert_pem=None, cds=None,
100 101 102 103 104 105
                          nodecert_file=pathutils.NODED_CERT_FILE,
                          rapicert_file=pathutils.RAPI_CERT_FILE,
                          spicecert_file=pathutils.SPICE_CERT_FILE,
                          spicecacert_file=pathutils.SPICE_CACERT_FILE,
                          hmackey_file=pathutils.CONFD_HMAC_KEY,
                          cds_file=pathutils.CLUSTER_DOMAIN_SECRET_FILE):
106 107 108 109 110 111
  """Updates the 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
112 113
  @type new_spice_cert: bool
  @param new_spice_cert: Whether to generate a new SPICE certificate
114 115
  @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
116 117
  @type new_cds: bool
  @param new_cds: Whether to generate a new cluster domain secret
118 119
  @type rapi_cert_pem: string
  @param rapi_cert_pem: New RAPI certificate in PEM format
120 121 122 123 124
  @type spice_cert_pem: string
  @param spice_cert_pem: New SPICE certificate in PEM format
  @type spice_cacert_pem: string
  @param spice_cacert_pem: Certificate of the CA that signed the SPICE
                           certificate, in PEM format
Michael Hanselmann's avatar
Michael Hanselmann committed
125 126
  @type cds: string
  @param cds: New cluster domain secret
127 128 129 130
  @type nodecert_file: string
  @param nodecert_file: optional override of the node cert file path
  @type rapicert_file: string
  @param rapicert_file: optional override of the rapi cert file path
131 132 133 134
  @type spicecert_file: string
  @param spicecert_file: optional override of the spice cert file path
  @type spicecacert_file: string
  @param spicecacert_file: optional override of the spice CA cert file path
135 136
  @type hmackey_file: string
  @param hmackey_file: optional override of the hmac key file path
137 138

  """
139
  # pylint: disable=R0913
140
  # noded SSL certificate
141
  utils.GenerateNewSslCert(
142
    new_cluster_cert, nodecert_file, 1,
143
    "Generating new cluster certificate at %s" % nodecert_file)
144

145
  # confd HMAC key
146 147 148
  if new_confd_hmac_key or not os.path.exists(hmackey_file):
    logging.debug("Writing new confd HMAC key to %s", hmackey_file)
    GenerateHmacKey(hmackey_file)
149 150 151

  if rapi_cert_pem:
    # Assume rapi_pem contains a valid PEM-formatted certificate and key
152 153
    logging.debug("Writing RAPI certificate at %s", rapicert_file)
    utils.WriteFile(rapicert_file, data=rapi_cert_pem, backup=True)
154

155 156
  else:
    utils.GenerateNewSslCert(
157
      new_rapi_cert, rapicert_file, 1,
158
      "Generating new RAPI certificate at %s" % rapicert_file)
159

160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176
  # SPICE
  spice_cert_exists = os.path.exists(spicecert_file)
  spice_cacert_exists = os.path.exists(spicecacert_file)
  if spice_cert_pem:
    # spice_cert_pem implies also spice_cacert_pem
    logging.debug("Writing SPICE certificate at %s", spicecert_file)
    utils.WriteFile(spicecert_file, data=spice_cert_pem, backup=True)
    logging.debug("Writing SPICE CA certificate at %s", spicecacert_file)
    utils.WriteFile(spicecacert_file, data=spice_cacert_pem, backup=True)
  elif new_spice_cert or not spice_cert_exists:
    if spice_cert_exists:
      utils.CreateBackup(spicecert_file)
    if spice_cacert_exists:
      utils.CreateBackup(spicecacert_file)

    logging.debug("Generating new self-signed SPICE certificate at %s",
                  spicecert_file)
177
    (_, cert_pem) = utils.GenerateSelfSignedSslCert(spicecert_file, 1)
178 179 180 181 182 183 184

    # Self-signed certificate -> the public certificate is also the CA public
    # certificate
    logging.debug("Writing the public certificate to %s",
                  spicecert_file)
    utils.io.WriteFile(spicecacert_file, mode=0400, data=cert_pem)

Michael Hanselmann's avatar
Michael Hanselmann committed
185 186
  # Cluster domain secret
  if cds:
187 188 189 190 191 192
    logging.debug("Writing cluster domain secret to %s", cds_file)
    utils.WriteFile(cds_file, data=cds, backup=True)

  elif new_cds or not os.path.exists(cds_file):
    logging.debug("Generating new cluster domain secret at %s", cds_file)
    GenerateHmacKey(cds_file)
Michael Hanselmann's avatar
Michael Hanselmann committed
193

194

195
def _InitGanetiServerSetup(master_name):
196 197 198
  """Setup the necessary configuration for the initial node daemon.

  This creates the nodepass file containing the shared password for
199 200 201 202
  the cluster, generates the SSL certificate and starts the node daemon.

  @type master_name: str
  @param master_name: Name of the master node
203 204

  """
205
  # Generate cluster secrets
206
  GenerateClusterCrypto(True, False, False, False, False)
207

208
  result = utils.RunCmd([pathutils.DAEMON_UTIL, "start", constants.NODED])
209 210 211 212 213
  if result.failed:
    raise errors.OpExecError("Could not start the node daemon, command %s"
                             " had exitcode %s and error %s" %
                             (result.cmd, result.exit_code, result.output))

214 215 216 217 218 219 220
  _WaitForNodeDaemon(master_name)


def _WaitForNodeDaemon(node_name):
  """Wait for node daemon to become responsive.

  """
221
  def _CheckNodeDaemon():
222 223
    # Pylint bug <http://www.logilab.org/ticket/35642>
    # pylint: disable=E1101
224
    result = rpc.BootstrapRunner().call_version([node_name])[node_name]
225 226
    if result.fail_msg:
      raise utils.RetryAgain()
227

228
  try:
229
    utils.Retry(_CheckNodeDaemon, 1.0, _DAEMON_READY_TIMEOUT)
230
  except utils.RetryTimeout:
231
    raise errors.OpExecError("Node daemon on %s didn't answer queries within"
232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252
                             " %s seconds" % (node_name, _DAEMON_READY_TIMEOUT))


def _WaitForMasterDaemon():
  """Wait for master daemon to become responsive.

  """
  def _CheckMasterDaemon():
    try:
      cl = luxi.Client()
      (cluster_name, ) = cl.QueryConfigValues(["cluster_name"])
    except Exception:
      raise utils.RetryAgain()

    logging.debug("Received cluster name %s from master", cluster_name)

  try:
    utils.Retry(_CheckMasterDaemon, 1.0, _DAEMON_READY_TIMEOUT)
  except utils.RetryTimeout:
    raise errors.OpExecError("Master daemon didn't answer queries within"
                             " %s seconds" % _DAEMON_READY_TIMEOUT)
253

254

255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275
def _WaitForSshDaemon(hostname, port, family):
  """Wait for SSH daemon to become responsive.

  """
  hostip = netutils.GetHostname(name=hostname, family=family).ip

  def _CheckSshDaemon():
    if netutils.TcpPing(hostip, port, timeout=1.0, live_port_needed=True):
      logging.debug("SSH daemon on %s:%s (IP address %s) has become"
                    " responsive", hostname, port, hostip)
    else:
      raise utils.RetryAgain()

  try:
    utils.Retry(_CheckSshDaemon, 1.0, _DAEMON_READY_TIMEOUT)
  except utils.RetryTimeout:
    raise errors.OpExecError("SSH daemon on %s:%s (IP address %s) didn't"
                             " become responsive within %s seconds" %
                             (hostname, port, hostip, _DAEMON_READY_TIMEOUT))


276
def RunNodeSetupCmd(cluster_name, node, basecmd, debug, verbose,
277 278
                    use_cluster_key, ask_key, strict_host_check,
                    port, data):
279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296
  """Runs a command to configure something on a remote machine.

  @type cluster_name: string
  @param cluster_name: Cluster name
  @type node: string
  @param node: Node name
  @type basecmd: string
  @param basecmd: Base command (path on the remote machine)
  @type debug: bool
  @param debug: Enable debug output
  @type verbose: bool
  @param verbose: Enable verbose output
  @type use_cluster_key: bool
  @param use_cluster_key: See L{ssh.SshRunner.BuildCmd}
  @type ask_key: bool
  @param ask_key: See L{ssh.SshRunner.BuildCmd}
  @type strict_host_check: bool
  @param strict_host_check: See L{ssh.SshRunner.BuildCmd}
297 298
  @type port: int
  @param port: The SSH port of the remote machine or None for the default
299 300 301 302 303 304 305 306 307 308 309 310
  @param data: JSON-serializable input data for script (passed to stdin)

  """
  cmd = [basecmd]

  # Pass --debug/--verbose to the external script if set on our invocation
  if debug:
    cmd.append("--debug")

  if verbose:
    cmd.append("--verbose")

311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334
  logging.debug("Node setup command: %s", cmd)

  version = constants.DIR_VERSION
  all_cmds = [["test", "-d", os.path.join(pathutils.PKGLIBDIR, version)]]
  if constants.HAS_GNU_LN:
    all_cmds.extend([["ln", "-s", "-f", "-T",
                      os.path.join(pathutils.PKGLIBDIR, version),
                      os.path.join(pathutils.SYSCONFDIR, "ganeti/lib")],
                     ["ln", "-s", "-f", "-T",
                      os.path.join(pathutils.SHAREDIR, version),
                      os.path.join(pathutils.SYSCONFDIR, "ganeti/share")]])
  else:
    all_cmds.extend([["rm", "-f",
                      os.path.join(pathutils.SYSCONFDIR, "ganeti/lib")],
                     ["ln", "-s", "-f",
                      os.path.join(pathutils.PKGLIBDIR, version),
                      os.path.join(pathutils.SYSCONFDIR, "ganeti/lib")],
                     ["rm", "-f",
                      os.path.join(pathutils.SYSCONFDIR, "ganeti/share")],
                     ["ln", "-s", "-f",
                      os.path.join(pathutils.SHAREDIR, version),
                      os.path.join(pathutils.SYSCONFDIR, "ganeti/share")]])
  all_cmds.append(cmd)

335 336 337
  if port is None:
    port = netutils.GetDaemonPort(constants.SSH)

338 339 340
  family = ssconf.SimpleStore().GetPrimaryIPFamily()
  srun = ssh.SshRunner(cluster_name,
                       ipv6=(family == netutils.IP6Address.family))
341
  scmd = srun.BuildCmd(node, constants.SSH_LOGIN_USER,
342 343
                       utils.ShellQuoteArgs(
                           utils.ShellCombineCommands(all_cmds)),
344 345
                       batch=False, ask_key=ask_key, quiet=False,
                       strict_host_check=strict_host_check,
346 347
                       use_cluster_key=use_cluster_key,
                       port=port)
348 349 350 351 352 353 354 355 356 357 358 359 360 361

  tempfh = tempfile.TemporaryFile()
  try:
    tempfh.write(serializer.DumpJson(data))
    tempfh.seek(0)

    result = utils.RunCmd(scmd, interactive=True, input_fd=tempfh)
  finally:
    tempfh.close()

  if result.failed:
    raise errors.OpExecError("Command '%s' failed: %s" %
                             (result.cmd, result.fail_reason))

362
  _WaitForSshDaemon(node, port, family)
363

364

365
def _InitFileStorageDir(file_storage_dir):
366 367 368 369 370 371 372 373 374 375
  """Initialize if needed the file storage.

  @param file_storage_dir: the user-supplied value
  @return: either empty string (if file storage was disabled at build
      time) or the normalized path to the storage directory

  """
  file_storage_dir = os.path.normpath(file_storage_dir)

  if not os.path.isabs(file_storage_dir):
376 377
    raise errors.OpPrereqError("File storage directory '%s' is not an absolute"
                               " path" % file_storage_dir, errors.ECODE_INVAL)
378 379 380 381 382 383 384 385 386 387 388 389 390

  if not os.path.exists(file_storage_dir):
    try:
      os.makedirs(file_storage_dir, 0750)
    except OSError, err:
      raise errors.OpPrereqError("Cannot create file storage directory"
                                 " '%s': %s" % (file_storage_dir, err),
                                 errors.ECODE_ENVIRON)

  if not os.path.isdir(file_storage_dir):
    raise errors.OpPrereqError("The file storage directory '%s' is not"
                               " a directory." % file_storage_dir,
                               errors.ECODE_ENVIRON)
391

392 393 394
  return file_storage_dir


395 396 397 398 399 400 401 402 403 404 405 406 407 408
def _PrepareFileBasedStorage(
    enabled_disk_templates, file_storage_dir,
    default_dir, file_disk_template,
    init_fn=_InitFileStorageDir, acceptance_fn=None):
  """Checks if a file-base storage type is enabled and inits the dir.

  @type enabled_disk_templates: list of string
  @param enabled_disk_templates: list of enabled disk templates
  @type file_storage_dir: string
  @param file_storage_dir: the file storage directory
  @type default_dir: string
  @param default_dir: default file storage directory when C{file_storage_dir}
      is 'None'
  @type file_disk_template: string
409 410
  @param file_disk_template: a disk template whose storage type is 'ST_FILE' or
      'ST_SHARED_FILE'
411 412
  @rtype: string
  @returns: the name of the actual file storage directory
413 414

  """
415 416 417 418
  assert (file_disk_template in utils.storage.GetDiskTemplatesOfStorageTypes(
            constants.ST_FILE, constants.ST_SHARED_FILE
         ))

419
  if file_storage_dir is None:
420
    file_storage_dir = default_dir
421 422 423 424 425 426 427 428
  if not acceptance_fn:
    acceptance_fn = \
        lambda path: filestorage.CheckFileStoragePathAcceptance(
            path, exact_match_ok=True)

  cluster.CheckFileStoragePathVsEnabledDiskTemplates(
      logging.warning, file_storage_dir, enabled_disk_templates)

429
  file_storage_enabled = file_disk_template in enabled_disk_templates
430 431 432 433 434 435 436 437 438 439 440
  if file_storage_enabled:
    try:
      acceptance_fn(file_storage_dir)
    except errors.FileStoragePathError as e:
      raise errors.OpPrereqError(str(e))
    result_file_storage_dir = init_fn(file_storage_dir)
  else:
    result_file_storage_dir = file_storage_dir
  return result_file_storage_dir


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
def _PrepareFileStorage(
    enabled_disk_templates, file_storage_dir, init_fn=_InitFileStorageDir,
    acceptance_fn=None):
  """Checks if file storage is enabled and inits the dir.

  @see: C{_PrepareFileBasedStorage}

  """
  return _PrepareFileBasedStorage(
      enabled_disk_templates, file_storage_dir,
      pathutils.DEFAULT_FILE_STORAGE_DIR, constants.DT_FILE,
      init_fn=init_fn, acceptance_fn=acceptance_fn)


def _PrepareSharedFileStorage(
    enabled_disk_templates, file_storage_dir, init_fn=_InitFileStorageDir,
    acceptance_fn=None):
  """Checks if shared file storage is enabled and inits the dir.

  @see: C{_PrepareFileBasedStorage}

  """
  return _PrepareFileBasedStorage(
      enabled_disk_templates, file_storage_dir,
      pathutils.DEFAULT_SHARED_FILE_STORAGE_DIR, constants.DT_SHARED_FILE,
      init_fn=init_fn, acceptance_fn=acceptance_fn)


469 470 471 472 473 474 475 476 477 478 479 480 481 482
def _PrepareGlusterStorage(
    enabled_disk_templates, file_storage_dir, init_fn=_InitFileStorageDir,
    acceptance_fn=None):
  """Checks if gluster storage is enabled and inits the dir.

  @see: C{_PrepareFileBasedStorage}

  """
  return _PrepareFileBasedStorage(
      enabled_disk_templates, file_storage_dir,
      pathutils.DEFAULT_GLUSTER_STORAGE_DIR, constants.DT_GLUSTER,
      init_fn=init_fn, acceptance_fn=acceptance_fn)


483 484 485 486 487 488 489 490 491 492 493 494 495 496 497
def _InitCheckEnabledDiskTemplates(enabled_disk_templates):
  """Checks the sanity of the enabled disk templates.

  """
  if not enabled_disk_templates:
    raise errors.OpPrereqError("Enabled disk templates list must contain at"
                               " least one member", errors.ECODE_INVAL)
  invalid_disk_templates = \
    set(enabled_disk_templates) - constants.DISK_TEMPLATES
  if invalid_disk_templates:
    raise errors.OpPrereqError("Enabled disk templates list contains invalid"
                               " entries: %s" % invalid_disk_templates,
                               errors.ECODE_INVAL)


498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517
def _RestrictIpolicyToEnabledDiskTemplates(ipolicy, enabled_disk_templates):
  """Restricts the ipolicy's disk templates to the enabled ones.

  This function clears the ipolicy's list of allowed disk templates from the
  ones that are not enabled by the cluster.

  @type ipolicy: dict
  @param ipolicy: the instance policy
  @type enabled_disk_templates: list of string
  @param enabled_disk_templates: the list of cluster-wide enabled disk
    templates

  """
  assert constants.IPOLICY_DTS in ipolicy
  allowed_disk_templates = ipolicy[constants.IPOLICY_DTS]
  restricted_disk_templates = list(set(allowed_disk_templates)
                                   .intersection(set(enabled_disk_templates)))
  ipolicy[constants.IPOLICY_DTS] = restricted_disk_templates


518
def _InitCheckDrbdHelper(drbd_helper, drbd_enabled):
519 520 521 522 523 524 525
  """Checks the DRBD usermode helper.

  @type drbd_helper: string
  @param drbd_helper: name of the DRBD usermode helper that the system should
    use

  """
526 527 528
  if not drbd_enabled:
    return

529 530 531 532 533
  if drbd_helper is not None:
    try:
      curr_helper = drbd.DRBD8.GetUsermodeHelper()
    except errors.BlockDeviceError, err:
      raise errors.OpPrereqError("Error while checking drbd helper"
534 535
                                 " (disable drbd with --enabled-disk-templates"
                                 " if you are not using drbd): %s" % str(err),
536 537 538 539 540 541 542 543
                                 errors.ECODE_ENVIRON)
    if drbd_helper != curr_helper:
      raise errors.OpPrereqError("Error: requiring %s as drbd helper but %s"
                                 " is the current helper" % (drbd_helper,
                                                             curr_helper),
                                 errors.ECODE_INVAL)


544
def InitCluster(cluster_name, mac_prefix, # pylint: disable=R0913, R0914
545
                master_netmask, master_netdev, file_storage_dir,
546 547
                shared_file_storage_dir, gluster_storage_dir,
                candidate_pool_size, secondary_ip=None,
548
                vg_name=None, beparams=None, nicparams=None, ndparams=None,
549 550 551
                hvparams=None, diskparams=None, enabled_hypervisors=None,
                modify_etc_hosts=True, modify_ssh_setup=True,
                maintain_node_health=False, drbd_helper=None, uid_pool=None,
552 553
                default_iallocator=None, default_iallocator_params=None,
                primary_ip_version=None, ipolicy=None,
554
                prealloc_wipe_disks=False, use_external_mip_script=False,
Hrvoje Ribicic's avatar
Hrvoje Ribicic committed
555
                hv_state=None, disk_state=None, enabled_disk_templates=None,
556
                install_image=None, zeroing_image=None, compression_tools=None,
557
                enabled_user_shutdown=False):
558 559
  """Initialise the cluster.

560 561
  @type candidate_pool_size: int
  @param candidate_pool_size: master candidate pool size
562

563 564
  @type enabled_disk_templates: list of string
  @param enabled_disk_templates: list of disk_templates to be used in this
565
    cluster
566

567 568 569 570
  @type enabled_user_shutdown: bool
  @param enabled_user_shutdown: whether user shutdown is enabled cluster
                                wide

571
  """
572
  # TODO: complete the docstring
573
  if config.ConfigWriter.IsCluster():
574 575
    raise errors.OpPrereqError("Cluster is already initialised",
                               errors.ECODE_STATE)
576

577 578
  if not enabled_hypervisors:
    raise errors.OpPrereqError("Enabled hypervisors list must contain at"
579
                               " least one member", errors.ECODE_INVAL)
580 581 582
  invalid_hvs = set(enabled_hypervisors) - constants.HYPER_TYPES
  if invalid_hvs:
    raise errors.OpPrereqError("Enabled hypervisors contains invalid"
583 584
                               " entries: %s" % invalid_hvs,
                               errors.ECODE_INVAL)
585

586
  _InitCheckEnabledDiskTemplates(enabled_disk_templates)
587

588 589 590
  try:
    ipcls = netutils.IPAddress.GetClassFromIpVersion(primary_ip_version)
  except errors.ProgrammerError:
591
    raise errors.OpPrereqError("Invalid primary ip version: %d." %
592
                               primary_ip_version, errors.ECODE_INVAL)
593 594 595 596

  hostname = netutils.GetHostname(family=ipcls.family)
  if not ipcls.IsValid(hostname.ip):
    raise errors.OpPrereqError("This host's IP (%s) is not a valid IPv%d"
597 598
                               " address." % (hostname.ip, primary_ip_version),
                               errors.ECODE_INVAL)
599 600

  if ipcls.IsLoopback(hostname.ip):
601 602
    raise errors.OpPrereqError("This host's IP (%s) resolves to a loopback"
                               " address. Please fix DNS or %s." %
603
                               (hostname.ip, pathutils.ETC_HOSTS),
604
                               errors.ECODE_ENVIRON)
605

606
  if not ipcls.Own(hostname.ip):
607 608
    raise errors.OpPrereqError("Inconsistency: this host's name resolves"
                               " to %s,\nbut this ip address does not"
609
                               " belong to this host" %
610
                               hostname.ip, errors.ECODE_ENVIRON)
611

612
  clustername = netutils.GetHostname(name=cluster_name, family=ipcls.family)
613

614
  if netutils.TcpPing(clustername.ip, constants.DEFAULT_NODED_PORT, timeout=5):
615
    raise errors.OpPrereqError("Cluster IP already active",
616
                               errors.ECODE_NOTUNIQUE)
617

618 619 620
  if not secondary_ip:
    if primary_ip_version == constants.IP6_VERSION:
      raise errors.OpPrereqError("When using a IPv6 primary address, a valid"
621 622
                                 " IPv4 address must be given as secondary",
                                 errors.ECODE_INVAL)
623
    secondary_ip = hostname.ip
624

625 626 627 628 629 630 631 632 633 634
  if not netutils.IP4Address.IsValid(secondary_ip):
    raise errors.OpPrereqError("Secondary IP address (%s) has to be a valid"
                               " IPv4 address." % secondary_ip,
                               errors.ECODE_INVAL)

  if not netutils.IP4Address.Own(secondary_ip):
    raise errors.OpPrereqError("You gave %s as secondary IP,"
                               " but it does not belong to this host." %
                               secondary_ip, errors.ECODE_ENVIRON)

635 636 637
  if master_netmask is not None:
    if not ipcls.ValidateNetmask(master_netmask):
      raise errors.OpPrereqError("CIDR netmask (%s) not valid for IPv%s " %
638 639
                                  (master_netmask, primary_ip_version),
                                 errors.ECODE_INVAL)
640 641 642
  else:
    master_netmask = ipcls.iplen

643
  if vg_name:
644 645 646 647
    # Check if volume group is valid
    vgstatus = utils.CheckVolumeGroupSize(utils.ListVolumeGroups(), vg_name,
                                          constants.MIN_VG_SIZE)
    if vgstatus:
648
      raise errors.OpPrereqError("Error: %s" % vgstatus, errors.ECODE_INVAL)
649

650 651
  drbd_enabled = constants.DT_DRBD8 in enabled_disk_templates
  _InitCheckDrbdHelper(drbd_helper, drbd_enabled)
652

653 654 655 656 657 658 659
  logging.debug("Stopping daemons (if any are running)")
  result = utils.RunCmd([pathutils.DAEMON_UTIL, "stop-all"])
  if result.failed:
    raise errors.OpExecError("Could not stop daemons, command %s"
                             " had exitcode %s and error '%s'" %
                             (result.cmd, result.exit_code, result.output))

660 661
  file_storage_dir = _PrepareFileStorage(enabled_disk_templates,
                                         file_storage_dir)
662 663
  shared_file_storage_dir = _PrepareSharedFileStorage(enabled_disk_templates,
                                                      shared_file_storage_dir)
664 665

  if not re.match("^[0-9a-z]{2}:[0-9a-z]{2}:[0-9a-z]{2}$", mac_prefix):
666 667
    raise errors.OpPrereqError("Invalid mac prefix given '%s'" % mac_prefix,
                               errors.ECODE_INVAL)
668

669
  if not nicparams.get('mode', None) == constants.NIC_MODE_OVS:
670 671 672 673 674 675 676
    # Do not do this check if mode=openvswitch, since the openvswitch is not
    # created yet
    result = utils.RunCmd(["ip", "link", "show", "dev", master_netdev])
    if result.failed:
      raise errors.OpPrereqError("Invalid master netdev given (%s): '%s'" %
                                 (master_netdev,
                                  result.output.strip()), errors.ECODE_INVAL)
677

678
  dirs = [(pathutils.RUN_DIR, constants.RUN_DIRS_MODE)]
679 680
  utils.EnsureDirs(dirs)

681
  objects.UpgradeBeParams(beparams)
682
  utils.ForceDictType(beparams, constants.BES_PARAMETER_TYPES)
683
  utils.ForceDictType(nicparams, constants.NICS_PARAMETER_TYPES)
684

685
  objects.NIC.CheckParameterSyntax(nicparams)
686

687
  full_ipolicy = objects.FillIPolicy(constants.IPOLICY_DEFAULTS, ipolicy)
688
  _RestrictIpolicyToEnabledDiskTemplates(full_ipolicy, enabled_disk_templates)
689

690 691 692 693 694
  if ndparams is not None:
    utils.ForceDictType(ndparams, constants.NDS_PARAMETER_TYPES)
  else:
    ndparams = dict(constants.NDC_DEFAULTS)

695
  # This is ugly, as we modify the dict itself
696 697
  # FIXME: Make utils.ForceDictType pure functional or write a wrapper
  # around it
698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715
  if hv_state:
    for hvname, hvs_data in hv_state.items():
      utils.ForceDictType(hvs_data, constants.HVSTS_PARAMETER_TYPES)
      hv_state[hvname] = objects.Cluster.SimpleFillHvState(hvs_data)
  else:
    hv_state = dict((hvname, constants.HVST_DEFAULTS)
                    for hvname in enabled_hypervisors)

  # FIXME: disk_state has no default values yet
  if disk_state:
    for storage, ds_data in disk_state.items():
      if storage not in constants.DS_VALID_TYPES:
        raise errors.OpPrereqError("Invalid storage type in disk state: %s" %
                                   storage, errors.ECODE_INVAL)
      for ds_name, state in ds_data.items():
        utils.ForceDictType(state, constants.DSS_PARAMETER_TYPES)
        ds_data[ds_name] = objects.Cluster.SimpleFillDiskState(state)

716 717 718 719 720
  # hvparams is a mapping of hypervisor->hvparams dict
  for hv_name, hv_params in hvparams.iteritems():
    utils.ForceDictType(hv_params, constants.HVS_PARAMETER_TYPES)
    hv_class = hypervisor.GetHypervisor(hv_name)
    hv_class.CheckParameterSyntax(hv_params)
721

722 723 724 725 726 727 728 729
  # diskparams is a mapping of disk-template->diskparams dict
  for template, dt_params in diskparams.items():
    param_keys = set(dt_params.keys())
    default_param_keys = set(constants.DISK_DT_DEFAULTS[template].keys())
    if not (param_keys <= default_param_keys):
      unknown_params = param_keys - default_param_keys
      raise errors.OpPrereqError("Invalid parameters for disk template %s:"
                                 " %s" % (template,
730 731
                                          utils.CommaJoin(unknown_params)),
                                 errors.ECODE_INVAL)
732
    utils.ForceDictType(dt_params, constants.DISK_DT_TYPES)
733 734 735 736 737
    if template == constants.DT_DRBD8 and vg_name is not None:
      # The default METAVG value is equal to the VG name set at init time,
      # if provided
      dt_params[constants.DRBD_DEFAULT_METAVG] = vg_name

738 739 740 741 742
  try:
    utils.VerifyDictOptions(diskparams, constants.DISK_DT_DEFAULTS)
  except errors.OpPrereqError, err:
    raise errors.OpPrereqError("While verify diskparam options: %s" % err,
                               errors.ECODE_INVAL)
743

744
  # set up ssh config and /etc/hosts
745 746 747 748 749 750 751 752 753 754 755
  rsa_sshkey = ""
  dsa_sshkey = ""
  if os.path.isfile(pathutils.SSH_HOST_RSA_PUB):
    sshline = utils.ReadFile(pathutils.SSH_HOST_RSA_PUB)
    rsa_sshkey = sshline.split(" ")[1]
  if os.path.isfile(pathutils.SSH_HOST_DSA_PUB):
    sshline = utils.ReadFile(pathutils.SSH_HOST_DSA_PUB)
    dsa_sshkey = sshline.split(" ")[1]
  if not rsa_sshkey and not dsa_sshkey:
    raise errors.OpPrereqError("Failed to find SSH public keys",
                               errors.ECODE_ENVIRON)
756

757
  if modify_etc_hosts:
758
    utils.AddHostToEtcHosts(hostname.name, hostname.ip)
759

760 761
  if modify_ssh_setup:
    _InitSSHSetup()
762

763 764 765 766 767 768 769 770
  if default_iallocator is not None:
    alloc_script = utils.FindFile(default_iallocator,
                                  constants.IALLOCATOR_SEARCH_PATH,
                                  os.path.isfile)
    if alloc_script is None:
      raise errors.OpPrereqError("Invalid default iallocator script '%s'"
                                 " specified" % default_iallocator,
                                 errors.ECODE_INVAL)
771 772
  else:
    # default to htools
773 774 775 776
    if utils.FindFile(constants.IALLOC_HAIL,
                      constants.IALLOCATOR_SEARCH_PATH,
                      os.path.isfile):
      default_iallocator = constants.IALLOC_HAIL
777

778 779 780 781 782 783 784
  # check if we have all the users we need
  try:
    runtime.GetEnts()
  except errors.ConfigurationError, err:
    raise errors.OpPrereqError("Required system user/group missing: %s" %
                               err, errors.ECODE_ENVIRON)

785 786
  candidate_certs = {}

787 788
  now = time.time()

789 790 791
  if compression_tools is not None:
    cluster.CheckCompressionTools(compression_tools)

792
  # init of cluster config file
793 794
  cluster_config = objects.Cluster(
    serial_no=1,
795 796
    rsahostkeypub=rsa_sshkey,
    dsahostkeypub=dsa_sshkey,
797 798 799 800
    highest_used_port=(constants.FIRST_DRBD_PORT - 1),
    mac_prefix=mac_prefix,
    volume_group_name=vg_name,
    tcpudp_port_pool=set(),
801
    master_ip=clustername.ip,
802
    master_netmask=master_netmask,
803 804 805
    master_netdev=master_netdev,
    cluster_name=clustername.name,
    file_storage_dir=file_storage_dir,
806
    shared_file_storage_dir=shared_file_storage_dir,
807
    gluster_storage_dir=gluster_storage_dir,
808
    enabled_hypervisors=enabled_hypervisors,
809
    beparams={constants.PP_DEFAULT: beparams},
810
    nicparams={constants.PP_DEFAULT: nicparams},
811
    ndparams=ndparams,
812
    hvparams=hvparams,
813
    diskparams=diskparams,
814
    candidate_pool_size=candidate_pool_size,
Guido Trotter's avatar
Guido Trotter committed
815
    modify_etc_hosts=modify_etc_hosts,
816
    modify_ssh_setup=modify_ssh_setup,
817
    uid_pool=uid_pool,
818 819
    ctime=now,
    mtime=now,
820
    maintain_node_health=maintain_node_health,
821
    drbd_usermode_helper=drbd_helper,
822
    default_iallocator=default_iallocator,
823
    default_iallocator_params=default_iallocator_params,
824
    primary_ip_family=ipcls.family,
825
    prealloc_wipe_disks=prealloc_wipe_disks,
826
    use_external_mip_script=use_external_mip_script,
827
    ipolicy=full_ipolicy,
828 829
    hv_state_static=hv_state,
    disk_state_static=disk_state,
830
    enabled_disk_templates=enabled_disk_templates,
831
    candidate_certs=candidate_certs,
832
    osparams={},
Hrvoje Ribicic's avatar
Hrvoje Ribicic committed
833
    osparams_private_cluster={},
834
    install_image=install_image,
835
    zeroing_image=zeroing_image,
836
    compression_tools=compression_tools,
837
    enabled_user_shutdown=enabled_user_shutdown,
838 839 840
    )
  master_node_config = objects.Node(name=hostname.name,
                                    primary_ip=hostname.ip,
841
                                    secondary_ip=secondary_ip,
842 843
                                    serial_no=1,
                                    master_candidate=True,
844
                                    offline=False, drained=False,
845
                                    ctime=now, mtime=now,
846
                                    )
847
  InitConfig(constants.CONFIG_VERSION, cluster_config, master_node_config)
848
  cfg = config.ConfigWriter(offline=True)
849
  ssh.WriteKnownHostsFile(cfg, pathutils.SSH_KNOWN_HOSTS_FILE)
850
  cfg.Update(cfg.GetClusterInfo(), logging.error)
851
  ssconf.WriteSsconfFiles(cfg.GetSsconfValues())
852 853 854

  # set up the inter-node password and certificate
  _InitGanetiServerSetup(hostname.name)
855

856
  logging.debug("Starting daemons")
857
  result = utils.RunCmd([pathutils.DAEMON_UTIL, "start-all"])
858 859 860 861
  if result.failed:
    raise errors.OpExecError("Could not start daemons, command %s"
                             " had exitcode %s and error %s" %
                             (result.cmd, result.exit_code, result.output))
Iustin Pop's avatar
Iustin Pop committed
862

863
  _WaitForMasterDaemon()
Iustin Pop's avatar
Iustin Pop committed
864

865

Oleksiy Mishchenko's avatar
Oleksiy Mishchenko committed
866
def InitConfig(version, cluster_config, master_node_config,
867
               cfg_file=pathutils.CLUSTER_CONF_FILE):
Iustin Pop's avatar
Iustin Pop committed
868 869 870 871 872 873
  """Create the initial cluster configuration.

  It will contain the current node, which will also be the master
  node, and no instances.

  @type version: int
Iustin Pop's avatar
Iustin Pop committed
874 875 876 877 878 879 880 881
  @param version: configuration version
  @type cluster_config: L{objects.Cluster}
  @param cluster_config: cluster configuration
  @type master_node_config: L{objects.Node}
  @param master_node_config: master node configuration
  @type cfg_file: string
  @param cfg_file: configuration file path

Iustin Pop's avatar
Iustin Pop committed
882
  """
883 884 885 886 887
  uuid_generator = config.TemporaryReservationManager()
  cluster_config.uuid = uuid_generator.Generate([], utils.NewUUID,
                                                _INITCONF_ECID)
  master_node_config.uuid = uuid_generator.Generate([], utils.NewUUID,
                                                    _INITCONF_ECID)
Thomas Thrainer's avatar
Thomas Thrainer committed
888
  cluster_config.master_node = master_node_config.uuid
Iustin Pop's avatar
Iustin Pop committed
889
  nodes = {
Thomas Thrainer's avatar
Thomas Thrainer committed
890
    master_node_config.uuid: master_node_config,
Iustin Pop's avatar
Iustin Pop committed
891
    }
892 893
  default_nodegroup = objects.NodeGroup(
    uuid=uuid_generator.Generate([], utils.NewUUID, _INITCONF_ECID),
894
    name=constants.INITIAL_NODE_GROUP_NAME,
Thomas Thrainer's avatar
Thomas Thrainer committed
895
    members=[master_node_config.uuid],
896
    diskparams={},
897 898 899 900
    )
  nodegroups = {
    default_nodegroup.uuid: default_nodegroup,
    }
901
  now = time.time()
Iustin Pop's avatar
Iustin Pop committed
902 903
  config_data = objects.ConfigData(version=version,
                                   cluster=cluster_config,
904
                                   nodegroups=nodegroups,
Iustin Pop's avatar
Iustin Pop committed
905 906
                                   nodes=nodes,
                                   instances={},
907
                                   networks={},
908
                                   disks={},
909 910
                                   serial_no=1,
                                   ctime=now, mtime=now)
911 912 913
  utils.WriteFile(cfg_file,
                  data=serializer.Dump(config_data.ToDict()),
                  mode=0600)
Oleksiy Mishchenko's avatar
Oleksiy Mishchenko committed
914 915


Thomas Thrainer's avatar
Thomas Thrainer committed
916
def FinalizeClusterDestroy(master_uuid):
Iustin Pop's avatar
Iustin Pop committed
917 918 919 920 921 922
  """Execute the last steps of cluster destroy

  This function shuts down all the daemons, completing the destroy
  begun in cmdlib.LUDestroyOpcode.

  """
923 924
  livelock = utils.livelock.LiveLock("bootstrap_destroy")
  cfg = config.GetConfig(None, livelock)
925
  modify_ssh_setup = cfg.GetClusterInfo().modify_ssh_setup
926 927
  runner = rpc.BootstrapRunner()

Thomas Thrainer's avatar
Thomas Thrainer committed
928 929
  master_name = cfg.GetNodeName(master_uuid)

930
  master_params = cfg.GetMasterNetworkParameters()
Thomas Thrainer's avatar
Thomas Thrainer committed
931
  master_params.uuid = master_uuid
932
  ems = cfg.GetUseExternalMipScript()
Thomas Thrainer's avatar
Thomas Thrainer committed
933 934
  result = runner.call_node_deactivate_master_ip(master_name, master_params,
                                                 ems)
935

936 937 938 939
  msg = result.fail_msg
  if msg:
    logging.warning("Could not disable the master IP: %s", msg)

Thomas Thrainer's avatar
Thomas Thrainer committed
940
  result = runner.call_node_stop_master(master_name)
941
  msg = result.fail_msg
942
  if msg:
943
    logging.warning("Could not disable the master role: %s", msg)
944

Thomas Thrainer's avatar
Thomas Thrainer committed
945
  result = runner.call_node_leave_cluster(master_name, modify_ssh_setup)
946
  msg = result.fail_msg
947 948 949
  if msg:
    logging.warning("Could not shutdown the node daemon and cleanup"
                    " the node: %s", msg)
Iustin Pop's avatar
Iustin Pop committed
950 951


952
def SetupNodeDaemon(opts, cluster_name, node, ssh_port):
953 954
  """Add a node to the cluster.

955 956 957
  This function must be called before the actual opcode, and will ssh
  to the remote node, copy the needed files, and start ganeti-noded,
  allowing the master to do the rest via normal rpc calls.
958

Iustin Pop's avatar
Iustin Pop committed
959 960
  @param cluster_name: the cluster name
  @param node: the name of the new node