code.grnet.gr Git - ganeti-local/blob - lib/constants.py

   1 #
   2 #
   3
   4 # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Google Inc.
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful, but
  12 # WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 # General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 # 02110-1301, USA.
  20
  21
  22 """Module holding different constants."""
  23
  24 import re
  25
  26 from ganeti import _autoconf
  27 from ganeti import _vcsversion
  28
  29 # various versions
  30 RELEASE_VERSION = _autoconf.PACKAGE_VERSION
  31 OS_API_V10 = 10
  32 OS_API_V15 = 15
  33 OS_API_V20 = 20
  34 OS_API_VERSIONS = frozenset([OS_API_V10, OS_API_V15, OS_API_V20])
  35 VCS_VERSION = _vcsversion.VCS_VERSION
  36 EXPORT_VERSION = 0
  37 RAPI_VERSION = 2
  38
  39
  40 # Format for CONFIG_VERSION:
  41 #   01 03 0123 = 01030123
  42 #   ^^ ^^ ^^^^
  43 #   |  |  + Configuration version/revision
  44 #   |  + Minor version
  45 #   + Major version
  46 #
  47 # It stored as an integer. Make sure not to write an octal number.
  48
  49 # BuildVersion and SplitVersion must be in here because we can't import other
  50 # modules. The cfgupgrade tool must be able to read and write version numbers
  51 # and thus requires these functions. To avoid code duplication, they're kept in
  52 # here.
  53
  54 def BuildVersion(major, minor, revision):
  55   """Calculates int version number from major, minor and revision numbers.
  56
  57   Returns: int representing version number
  58
  59   """
  60   assert isinstance(major, int)
  61   assert isinstance(minor, int)
  62   assert isinstance(revision, int)
  63   return (1000000 * major +
  64             10000 * minor +
  65                 1 * revision)
  66
  67
  68 def SplitVersion(version):
  69   """Splits version number stored in an int.
  70
  71   Returns: tuple; (major, minor, revision)
  72
  73   """
  74   assert isinstance(version, int)
  75
  76   (major, remainder) = divmod(version, 1000000)
  77   (minor, revision) = divmod(remainder, 10000)
  78
  79   return (major, minor, revision)
  80
  81
  82 CONFIG_MAJOR = int(_autoconf.VERSION_MAJOR)
  83 CONFIG_MINOR = int(_autoconf.VERSION_MINOR)
  84 CONFIG_REVISION = 0
  85 CONFIG_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, CONFIG_REVISION)
  86
  87 #: RPC protocol version
  88 PROTOCOL_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, 0)
  89
  90 # user separation
  91 DAEMONS_GROUP = _autoconf.DAEMONS_GROUP
  92 ADMIN_GROUP = _autoconf.ADMIN_GROUP
  93 MASTERD_USER = _autoconf.MASTERD_USER
  94 MASTERD_GROUP = _autoconf.MASTERD_GROUP
  95 RAPI_USER = _autoconf.RAPI_USER
  96 RAPI_GROUP = _autoconf.RAPI_GROUP
  97 CONFD_USER = _autoconf.CONFD_USER
  98 CONFD_GROUP = _autoconf.CONFD_GROUP
  99 NODED_USER = _autoconf.NODED_USER
 100 NODED_GROUP = _autoconf.NODED_GROUP
 101
 102
 103 # Wipe
 104 DD_CMD = "dd"
 105 WIPE_BLOCK_SIZE = 1024 ** 2
 106 MAX_WIPE_CHUNK = 1024 # 1GB
 107 MIN_WIPE_CHUNK_PERCENT = 10
 108
 109
 110 # file paths
 111 DATA_DIR = _autoconf.LOCALSTATEDIR + "/lib/ganeti"
 112 RUN_DIR = _autoconf.LOCALSTATEDIR + "/run"
 113 RUN_GANETI_DIR = RUN_DIR + "/ganeti"
 114 BDEV_CACHE_DIR = RUN_GANETI_DIR + "/bdev-cache"
 115 DISK_LINKS_DIR = RUN_GANETI_DIR + "/instance-disks"
 116 RUN_DIRS_MODE = 0775
 117 SOCKET_DIR = RUN_GANETI_DIR + "/socket"
 118 SECURE_DIR_MODE = 0700
 119 SECURE_FILE_MODE = 0600
 120 SOCKET_DIR_MODE = 0750
 121 CRYPTO_KEYS_DIR = RUN_GANETI_DIR + "/crypto"
 122 CRYPTO_KEYS_DIR_MODE = SECURE_DIR_MODE
 123 IMPORT_EXPORT_DIR = RUN_GANETI_DIR + "/import-export"
 124 IMPORT_EXPORT_DIR_MODE = 0755
 125 ADOPTABLE_BLOCKDEV_ROOT = "/dev/disk/"
 126 # keep RUN_GANETI_DIR first here, to make sure all get created when the node
 127 # daemon is started (this takes care of RUN_DIR being tmpfs)
 128 SUB_RUN_DIRS = [
 129   RUN_GANETI_DIR,
 130   BDEV_CACHE_DIR,
 131   DISK_LINKS_DIR,
 132   ]
 133 LOCK_DIR = _autoconf.LOCALSTATEDIR + "/lock"
 134 SSCONF_LOCK_FILE = LOCK_DIR + "/ganeti-ssconf.lock"
 135 # User-id pool lock directory
 136 # The user-ids that are in use have a corresponding lock file in this directory
 137 UIDPOOL_LOCKDIR = RUN_GANETI_DIR + "/uid-pool"
 138 CLUSTER_CONF_FILE = DATA_DIR + "/config.data"
 139 NODED_CERT_FILE = DATA_DIR + "/server.pem"
 140 RAPI_CERT_FILE = DATA_DIR + "/rapi.pem"
 141 CONFD_HMAC_KEY = DATA_DIR + "/hmac.key"
 142 CLUSTER_DOMAIN_SECRET_FILE = DATA_DIR + "/cluster-domain-secret"
 143 INSTANCE_STATUS_FILE = RUN_GANETI_DIR + "/instance-status"
 144 SSH_KNOWN_HOSTS_FILE = DATA_DIR + "/known_hosts"
 145 RAPI_USERS_FILE = DATA_DIR + "/rapi/users"
 146 QUEUE_DIR = DATA_DIR + "/queue"
 147 DAEMON_UTIL = _autoconf.PKGLIBDIR + "/daemon-util"
 148 SETUP_SSH = _autoconf.TOOLSDIR + "/setup-ssh"
 149 KVM_IFUP = _autoconf.PKGLIBDIR + "/kvm-ifup"
 150 KVM_CONSOLE_WRAPPER = _autoconf.PKGLIBDIR + "/tools/kvm-console-wrapper"
 151 XM_CONSOLE_WRAPPER = _autoconf.PKGLIBDIR + "/tools/xm-console-wrapper"
 152 ETC_HOSTS = "/etc/hosts"
 153 DEFAULT_FILE_STORAGE_DIR = _autoconf.FILE_STORAGE_DIR
 154 DEFAULT_SHARED_FILE_STORAGE_DIR = _autoconf.SHARED_FILE_STORAGE_DIR
 155 ENABLE_FILE_STORAGE = _autoconf.ENABLE_FILE_STORAGE
 156 ENABLE_SHARED_FILE_STORAGE = _autoconf.ENABLE_SHARED_FILE_STORAGE
 157 SYSCONFDIR = _autoconf.SYSCONFDIR
 158 TOOLSDIR = _autoconf.TOOLSDIR
 159 CONF_DIR = SYSCONFDIR + "/ganeti"
 160
 161 #: Lock file for watcher, locked in shared mode by watcher; lock in exclusive
 162 # mode to block watcher (see L{cli._RunWhileClusterStoppedHelper.Call}
 163 WATCHER_LOCK_FILE = LOCK_DIR + "/ganeti-watcher.lock"
 164
 165 #: Status file for per-group watcher, locked in exclusive mode by watcher
 166 WATCHER_GROUP_STATE_FILE = DATA_DIR + "/watcher.%s.data"
 167
 168 #: File for per-group instance status, merged into L{INSTANCE_STATUS_FILE} by
 169 #: per-group processes
 170 WATCHER_GROUP_INSTANCE_STATUS_FILE = DATA_DIR + "/watcher.%s.instance-status"
 171
 172 #: File containing Unix timestamp until which watcher should be paused
 173 WATCHER_PAUSEFILE = DATA_DIR + "/watcher.pause"
 174
 175 ALL_CERT_FILES = frozenset([NODED_CERT_FILE, RAPI_CERT_FILE])
 176
 177 MASTER_SOCKET = SOCKET_DIR + "/ganeti-master"
 178
 179 NODED = "ganeti-noded"
 180 CONFD = "ganeti-confd"
 181 RAPI = "ganeti-rapi"
 182 MASTERD = "ganeti-masterd"
 183 # used in the ganeti-nbma project
 184 NLD = "ganeti-nld"
 185
 186 DAEMONS_PORTS = {
 187   # daemon-name: ("proto", "default-port")
 188   NODED: ("tcp", 1811),
 189   CONFD: ("udp", 1814),
 190   RAPI: ("tcp", 5080),
 191   "ssh": ("tcp", 22),
 192   # used in the ganeti-nbma project
 193   NLD: ("udp", 1816),
 194 }
 195 DEFAULT_NODED_PORT = DAEMONS_PORTS[NODED][1]
 196 DEFAULT_CONFD_PORT = DAEMONS_PORTS[CONFD][1]
 197 DEFAULT_RAPI_PORT = DAEMONS_PORTS[RAPI][1]
 198 # used in the ganeti-nbma project
 199 DEFAULT_NLD_PORT = DAEMONS_PORTS[NLD][1]
 200
 201 FIRST_DRBD_PORT = 11000
 202 LAST_DRBD_PORT = 14999
 203 MASTER_SCRIPT = "ganeti-master"
 204
 205 LOG_DIR = _autoconf.LOCALSTATEDIR + "/log/ganeti/"
 206 DAEMONS_LOGFILES = {
 207   # "daemon-name": "logfile"
 208   NODED: LOG_DIR + "node-daemon.log",
 209   CONFD: LOG_DIR + "conf-daemon.log",
 210   RAPI: LOG_DIR + "rapi-daemon.log",
 211   MASTERD: LOG_DIR + "master-daemon.log",
 212   # used in the ganeti-nbma project
 213   NLD: LOG_DIR + "nl-daemon.log",
 214   }
 215
 216 LOG_OS_DIR = LOG_DIR + "os"
 217 LOG_WATCHER = LOG_DIR + "watcher.log"
 218 LOG_COMMANDS = LOG_DIR + "commands.log"
 219 LOG_BURNIN = LOG_DIR + "burnin.log"
 220 LOG_SETUP_SSH = LOG_DIR + "setup-ssh.log"
 221
 222 DEV_CONSOLE = "/dev/console"
 223
 224 PROC_MOUNTS = "/proc/mounts"
 225
 226 # Local UniX Interface related constants
 227 LUXI_EOM = "\3"
 228 LUXI_VERSION = CONFIG_VERSION
 229
 230 # one of "no", "yes", "only"
 231 SYSLOG_USAGE = _autoconf.SYSLOG_USAGE
 232 SYSLOG_NO = "no"
 233 SYSLOG_YES = "yes"
 234 SYSLOG_ONLY = "only"
 235 SYSLOG_SOCKET = "/dev/log"
 236
 237 OS_SEARCH_PATH = _autoconf.OS_SEARCH_PATH
 238 EXPORT_DIR = _autoconf.EXPORT_DIR
 239
 240 EXPORT_CONF_FILE = "config.ini"
 241
 242 XEN_BOOTLOADER = _autoconf.XEN_BOOTLOADER
 243 XEN_KERNEL = _autoconf.XEN_KERNEL
 244 XEN_INITRD = _autoconf.XEN_INITRD
 245 XEN_CMD = "xm"
 246
 247 KVM_PATH = _autoconf.KVM_PATH
 248 SOCAT_PATH = _autoconf.SOCAT_PATH
 249 SOCAT_USE_ESCAPE = _autoconf.SOCAT_USE_ESCAPE
 250 SOCAT_USE_COMPRESS = _autoconf.SOCAT_USE_COMPRESS
 251 SOCAT_ESCAPE_CODE = "0x1d"
 252
 253 #: Console as SSH command
 254 CONS_SSH = "ssh"
 255
 256 #: Console as VNC server
 257 CONS_VNC = "vnc"
 258
 259 #: Console as SPICE server
 260 CONS_SPICE = "spice"
 261
 262 #: Display a message for console access
 263 CONS_MESSAGE = "msg"
 264
 265 #: All console types
 266 CONS_ALL = frozenset([CONS_SSH, CONS_VNC, CONS_SPICE, CONS_MESSAGE])
 267
 268 # For RSA keys more bits are better, but they also make operations more
 269 # expensive. NIST SP 800-131 recommends a minimum of 2048 bits from the year
 270 # 2010 on.
 271 RSA_KEY_BITS = 2048
 272
 273 # Ciphers allowed for SSL connections. For the format, see ciphers(1). A better
 274 # way to disable ciphers would be to use the exclamation mark (!), but socat
 275 # versions below 1.5 can't parse exclamation marks in options properly. When
 276 # modifying the ciphers, ensure not to accidentially add something after it's
 277 # been removed. Use the "openssl" utility to check the allowed ciphers, e.g.
 278 # "openssl ciphers -v HIGH:-DES".
 279 OPENSSL_CIPHERS = "HIGH:-DES:-3DES:-EXPORT:-ADH"
 280
 281 # Digest used to sign certificates ("openssl x509" uses SHA1 by default)
 282 X509_CERT_SIGN_DIGEST = "SHA1"
 283
 284 # Default validity of certificates in days
 285 X509_CERT_DEFAULT_VALIDITY = 365 * 5
 286
 287 # commonName (CN) used in certificates
 288 X509_CERT_CN = "ganeti.example.com"
 289
 290 X509_CERT_SIGNATURE_HEADER = "X-Ganeti-Signature"
 291
 292 IMPORT_EXPORT_DAEMON = _autoconf.PKGLIBDIR + "/import-export"
 293
 294 # Import/export daemon mode
 295 IEM_IMPORT = "import"
 296 IEM_EXPORT = "export"
 297
 298 # Import/export transport compression
 299 IEC_NONE = "none"
 300 IEC_GZIP = "gzip"
 301 IEC_ALL = frozenset([
 302   IEC_NONE,
 303   IEC_GZIP,
 304   ])
 305
 306 IE_CUSTOM_SIZE = "fd"
 307
 308 IE_MAGIC_RE = re.compile(r"^[-_.a-zA-Z0-9]{5,100}$")
 309
 310 # Import/export I/O
 311 # Direct file I/O, equivalent to a shell's I/O redirection using '<' or '>'
 312 IEIO_FILE = "file"
 313 # Raw block device I/O using "dd"
 314 IEIO_RAW_DISK = "raw"
 315 # OS definition import/export script
 316 IEIO_SCRIPT = "script"
 317
 318 VALUE_DEFAULT = "default"
 319 VALUE_AUTO = "auto"
 320 VALUE_GENERATE = "generate"
 321 VALUE_NONE = "none"
 322 VALUE_TRUE = "true"
 323 VALUE_FALSE = "false"
 324
 325 # External script validation mask
 326 EXT_PLUGIN_MASK = re.compile("^[a-zA-Z0-9_-]+$")
 327
 328 # hooks-related constants
 329 HOOKS_BASE_DIR = CONF_DIR + "/hooks"
 330 HOOKS_PHASE_PRE = "pre"
 331 HOOKS_PHASE_POST = "post"
 332 HOOKS_NAME_CFGUPDATE = "config-update"
 333 HOOKS_NAME_WATCHER = "watcher"
 334 HOOKS_VERSION = 2
 335 HOOKS_PATH = "/sbin:/bin:/usr/sbin:/usr/bin"
 336
 337 # hooks subject type (what object type does the LU deal with)
 338 HTYPE_CLUSTER = "CLUSTER"
 339 HTYPE_NODE = "NODE"
 340 HTYPE_GROUP = "GROUP"
 341 HTYPE_INSTANCE = "INSTANCE"
 342
 343 HKR_SKIP = 0
 344 HKR_FAIL = 1
 345 HKR_SUCCESS = 2
 346
 347 # Storage types
 348 ST_FILE = "file"
 349 ST_LVM_PV = "lvm-pv"
 350 ST_LVM_VG = "lvm-vg"
 351
 352 # Storage fields
 353 # first two are valid in LU context only, not passed to backend
 354 SF_NODE = "node"
 355 SF_TYPE = "type"
 356 # and the rest are valid in backend
 357 SF_NAME = "name"
 358 SF_SIZE = "size"
 359 SF_FREE = "free"
 360 SF_USED = "used"
 361 SF_ALLOCATABLE = "allocatable"
 362
 363 # Storage operations
 364 SO_FIX_CONSISTENCY = "fix-consistency"
 365
 366 # Available fields per storage type
 367 VALID_STORAGE_FIELDS = frozenset([
 368   SF_NAME,
 369   SF_TYPE,
 370   SF_SIZE,
 371   SF_USED,
 372   SF_FREE,
 373   SF_ALLOCATABLE
 374   ])
 375
 376 VALID_STORAGE_TYPES = frozenset([ST_FILE, ST_LVM_PV, ST_LVM_VG])
 377
 378 MODIFIABLE_STORAGE_FIELDS = {
 379   ST_LVM_PV: frozenset([SF_ALLOCATABLE]),
 380   }
 381
 382 VALID_STORAGE_OPERATIONS = {
 383   ST_LVM_VG: frozenset([SO_FIX_CONSISTENCY]),
 384   }
 385
 386 # Local disk status
 387 # Note: Code depends on LDS_OKAY < LDS_UNKNOWN < LDS_FAULTY
 388 (LDS_OKAY,
 389  LDS_UNKNOWN,
 390  LDS_FAULTY) = range(1, 4)
 391
 392 # disk template types
 393 DT_DISKLESS = "diskless"
 394 DT_PLAIN = "plain"
 395 DT_DRBD8 = "drbd"
 396 DT_FILE = "file"
 397 DT_SHARED_FILE = "sharedfile"
 398 DT_BLOCK = "blockdev"
 399
 400 # the set of network-mirrored disk templates
 401 DTS_INT_MIRROR = frozenset([DT_DRBD8])
 402
 403 # the set of externally-mirrored disk templates (e.g. SAN, NAS)
 404 DTS_EXT_MIRROR = frozenset([DT_SHARED_FILE, DT_BLOCK])
 405
 406 # the set of non-lvm-based disk templates
 407 DTS_NOT_LVM = frozenset([DT_DISKLESS, DT_FILE, DT_SHARED_FILE, DT_BLOCK])
 408
 409 # the set of disk templates which can be grown
 410 DTS_GROWABLE = frozenset([DT_PLAIN, DT_DRBD8, DT_FILE, DT_SHARED_FILE])
 411
 412 # the set of disk templates that allow adoption
 413 DTS_MAY_ADOPT = frozenset([DT_PLAIN, DT_BLOCK])
 414
 415 # the set of disk templates that *must* use adoption
 416 DTS_MUST_ADOPT = frozenset([DT_BLOCK])
 417
 418 # the set of disk templates that allow migrations
 419 DTS_MIRRORED = frozenset.union(DTS_INT_MIRROR, DTS_EXT_MIRROR)
 420
 421 # the set of file based disk templates
 422 DTS_FILEBASED = frozenset([DT_FILE, DT_SHARED_FILE])
 423
 424 # logical disk types
 425 LD_LV = "lvm"
 426 LD_DRBD8 = "drbd8"
 427 LD_FILE = "file"
 428 LD_BLOCKDEV = "blockdev"
 429 LDS_BLOCK = frozenset([LD_LV, LD_DRBD8, LD_BLOCKDEV])
 430
 431 # drbd constants
 432 DRBD_HMAC_ALG = "md5"
 433 DRBD_NET_PROTOCOL = "C"
 434 DRBD_BARRIERS = _autoconf.DRBD_BARRIERS
 435
 436 # file backend driver
 437 FD_LOOP = "loop"
 438 FD_BLKTAP = "blktap"
 439
 440 # the set of drbd-like disk types
 441 LDS_DRBD = frozenset([LD_DRBD8])
 442
 443 # disk access mode
 444 DISK_RDONLY = "ro"
 445 DISK_RDWR = "rw"
 446 DISK_ACCESS_SET = frozenset([DISK_RDONLY, DISK_RDWR])
 447
 448 # disk replacement mode
 449 REPLACE_DISK_PRI = "replace_on_primary"    # replace disks on primary
 450 REPLACE_DISK_SEC = "replace_on_secondary"  # replace disks on secondary
 451 REPLACE_DISK_CHG = "replace_new_secondary" # change secondary node
 452 REPLACE_DISK_AUTO = "replace_auto"
 453 REPLACE_MODES = frozenset([
 454   REPLACE_DISK_PRI,
 455   REPLACE_DISK_SEC,
 456   REPLACE_DISK_CHG,
 457   REPLACE_DISK_AUTO,
 458   ])
 459
 460 # Instance export mode
 461 EXPORT_MODE_LOCAL = "local"
 462 EXPORT_MODE_REMOTE = "remote"
 463 EXPORT_MODES = frozenset([
 464   EXPORT_MODE_LOCAL,
 465   EXPORT_MODE_REMOTE,
 466   ])
 467
 468 # Lock recalculate mode
 469 LOCKS_REPLACE = "replace"
 470 LOCKS_APPEND = "append"
 471
 472 # Lock timeout (sum) before we should go into blocking acquire (still
 473 # can be reset by priority change); computed as max time (10 hours)
 474 # before we should actually go into blocking acquire given that we
 475 # start from default priority level; in seconds
 476 LOCK_ATTEMPTS_TIMEOUT = 10 * 3600 / 20.0
 477 LOCK_ATTEMPTS_MAXWAIT = 15.0
 478 LOCK_ATTEMPTS_MINWAIT = 1.0
 479
 480 # instance creation modes
 481 INSTANCE_CREATE = "create"
 482 INSTANCE_IMPORT = "import"
 483 INSTANCE_REMOTE_IMPORT = "remote-import"
 484 INSTANCE_CREATE_MODES = frozenset([
 485   INSTANCE_CREATE,
 486   INSTANCE_IMPORT,
 487   INSTANCE_REMOTE_IMPORT,
 488   ])
 489
 490 # Remote import/export handshake message and version
 491 RIE_VERSION = 0
 492 RIE_HANDSHAKE = "Hi, I'm Ganeti"
 493
 494 # Remote import/export certificate validity in seconds
 495 RIE_CERT_VALIDITY = 24 * 60 * 60
 496
 497 # Overall timeout for establishing connection
 498 RIE_CONNECT_TIMEOUT = 180
 499
 500 # Export only: how long to wait per connection attempt (seconds)
 501 RIE_CONNECT_ATTEMPT_TIMEOUT = 20
 502
 503 # Export only: number of attempts to connect
 504 RIE_CONNECT_RETRIES = 10
 505
 506 #: Give child process up to 5 seconds to exit after sending a signal
 507 CHILD_LINGER_TIMEOUT = 5.0
 508
 509 DISK_TEMPLATES = frozenset([
 510   DT_DISKLESS,
 511   DT_PLAIN,
 512   DT_DRBD8,
 513   DT_FILE,
 514   DT_SHARED_FILE,
 515   DT_BLOCK
 516   ])
 517
 518 FILE_DRIVER = frozenset([FD_LOOP, FD_BLKTAP])
 519
 520 # import/export config options
 521 INISECT_EXP = "export"
 522 INISECT_INS = "instance"
 523 INISECT_HYP = "hypervisor"
 524 INISECT_BEP = "backend"
 525 INISECT_OSP = "os"
 526
 527 # dynamic device modification
 528 DDM_ADD = "add"
 529 DDM_REMOVE = "remove"
 530 DDMS_VALUES = frozenset([DDM_ADD, DDM_REMOVE])
 531
 532 # common exit codes
 533 EXIT_SUCCESS = 0
 534 EXIT_FAILURE = 1
 535 EXIT_NOTCLUSTER = 5
 536 EXIT_NOTMASTER = 11
 537 EXIT_NODESETUP_ERROR = 12
 538 EXIT_CONFIRMATION = 13 # need user confirmation
 539
 540 #: Exit code for query operations with unknown fields
 541 EXIT_UNKNOWN_FIELD = 14
 542
 543 # tags
 544 TAG_CLUSTER = "cluster"
 545 TAG_NODEGROUP = "nodegroup"
 546 TAG_NODE = "node"
 547 TAG_INSTANCE = "instance"
 548 VALID_TAG_TYPES = frozenset([
 549   TAG_CLUSTER,
 550   TAG_NODEGROUP,
 551   TAG_NODE,
 552   TAG_INSTANCE,
 553   ])
 554 MAX_TAG_LEN = 128
 555 MAX_TAGS_PER_OBJ = 4096
 556
 557 # others
 558 DEFAULT_BRIDGE = "xen-br0"
 559 SYNC_SPEED = 60 * 1024
 560 IP4_ADDRESS_LOCALHOST = "127.0.0.1"
 561 IP4_ADDRESS_ANY = "0.0.0.0"
 562 IP6_ADDRESS_LOCALHOST = "::1"
 563 IP6_ADDRESS_ANY = "::"
 564 IP4_VERSION = 4
 565 IP6_VERSION = 6
 566 VALID_IP_VERSIONS = frozenset([IP4_VERSION, IP6_VERSION])
 567 TCP_PING_TIMEOUT = 10
 568 GANETI_RUNAS = "root"
 569 DEFAULT_VG = "xenvg"
 570 DEFAULT_DRBD_HELPER = "/bin/true"
 571 MIN_VG_SIZE = 20480
 572 DEFAULT_MAC_PREFIX = "aa:00:00"
 573 LVM_STRIPECOUNT = _autoconf.LVM_STRIPECOUNT
 574 # default maximum instance wait time, in seconds.
 575 DEFAULT_SHUTDOWN_TIMEOUT = 120
 576 NODE_MAX_CLOCK_SKEW = 150
 577 # Time for an intra-cluster disk transfer to wait for a connection
 578 DISK_TRANSFER_CONNECT_TIMEOUT = 60
 579 # Disk index separator
 580 DISK_SEPARATOR = _autoconf.DISK_SEPARATOR
 581 IP_COMMAND_PATH = _autoconf.IP_PATH
 582
 583 #: Key for job IDs in opcode result
 584 JOB_IDS_KEY = "jobs"
 585
 586 # runparts results
 587 (RUNPARTS_SKIP,
 588  RUNPARTS_RUN,
 589  RUNPARTS_ERR) = range(3)
 590
 591 RUNPARTS_STATUS = frozenset([RUNPARTS_SKIP, RUNPARTS_RUN, RUNPARTS_ERR])
 592
 593 # RPC constants
 594 (RPC_ENCODING_NONE,
 595  RPC_ENCODING_ZLIB_BASE64) = range(2)
 596
 597 # os related constants
 598 OS_SCRIPT_CREATE = "create"
 599 OS_SCRIPT_IMPORT = "import"
 600 OS_SCRIPT_EXPORT = "export"
 601 OS_SCRIPT_RENAME = "rename"
 602 OS_SCRIPT_VERIFY = "verify"
 603 OS_SCRIPTS = frozenset([
 604   OS_SCRIPT_CREATE,
 605   OS_SCRIPT_IMPORT,
 606   OS_SCRIPT_EXPORT,
 607   OS_SCRIPT_RENAME,
 608   OS_SCRIPT_VERIFY
 609   ])
 610
 611 OS_API_FILE = "ganeti_api_version"
 612 OS_VARIANTS_FILE = "variants.list"
 613 OS_PARAMETERS_FILE = "parameters.list"
 614
 615 OS_VALIDATE_PARAMETERS = "parameters"
 616 OS_VALIDATE_CALLS = frozenset([OS_VALIDATE_PARAMETERS])
 617
 618 # ssh constants
 619 SSH_CONFIG_DIR = _autoconf.SSH_CONFIG_DIR
 620 SSH_HOST_DSA_PRIV = SSH_CONFIG_DIR + "/ssh_host_dsa_key"
 621 SSH_HOST_DSA_PUB = SSH_HOST_DSA_PRIV + ".pub"
 622 SSH_HOST_RSA_PRIV = SSH_CONFIG_DIR + "/ssh_host_rsa_key"
 623 SSH_HOST_RSA_PUB = SSH_HOST_RSA_PRIV + ".pub"
 624 SSH = "ssh"
 625 SCP = "scp"
 626
 627 # reboot types
 628 INSTANCE_REBOOT_SOFT = "soft"
 629 INSTANCE_REBOOT_HARD = "hard"
 630 INSTANCE_REBOOT_FULL = "full"
 631
 632 REBOOT_TYPES = frozenset([
 633   INSTANCE_REBOOT_SOFT,
 634   INSTANCE_REBOOT_HARD,
 635   INSTANCE_REBOOT_FULL
 636   ])
 637
 638 # instance reboot behaviors
 639 INSTANCE_REBOOT_ALLOWED = "reboot"
 640 INSTANCE_REBOOT_EXIT = "exit"
 641
 642 REBOOT_BEHAVIORS = frozenset([
 643   INSTANCE_REBOOT_ALLOWED,
 644   INSTANCE_REBOOT_EXIT
 645   ])
 646
 647 VTYPE_STRING = "string"
 648 VTYPE_MAYBE_STRING = "maybe-string"
 649 VTYPE_BOOL = "bool"
 650 VTYPE_SIZE = "size" # size, in MiBs
 651 VTYPE_INT = "int"
 652 ENFORCEABLE_TYPES = frozenset([
 653   VTYPE_STRING,
 654   VTYPE_MAYBE_STRING,
 655   VTYPE_BOOL,
 656   VTYPE_SIZE,
 657   VTYPE_INT,
 658   ])
 659
 660 # Constant representing that the user does not specify any IP version
 661 IFACE_NO_IP_VERSION_SPECIFIED = 0
 662
 663 # HV parameter names (global namespace)
 664 HV_BOOT_ORDER = "boot_order"
 665 HV_CDROM_IMAGE_PATH = "cdrom_image_path"
 666 HV_KVM_CDROM2_IMAGE_PATH = "cdrom2_image_path"
 667 HV_KVM_FLOPPY_IMAGE_PATH = "floppy_image_path"
 668 HV_NIC_TYPE = "nic_type"
 669 HV_DISK_TYPE = "disk_type"
 670 HV_KVM_CDROM_DISK_TYPE = "cdrom_disk_type"
 671 HV_VNC_BIND_ADDRESS = "vnc_bind_address"
 672 HV_VNC_PASSWORD_FILE = "vnc_password_file"
 673 HV_VNC_TLS = "vnc_tls"
 674 HV_VNC_X509 = "vnc_x509_path"
 675 HV_VNC_X509_VERIFY = "vnc_x509_verify"
 676 HV_KVM_SPICE_BIND = "spice_bind"
 677 HV_KVM_SPICE_IP_VERSION = "spice_ip_version"
 678 HV_KVM_SPICE_PASSWORD_FILE = "spice_password_file"
 679 HV_KVM_SPICE_LOSSLESS_IMG_COMPR = "spice_image_compression"
 680 HV_KVM_SPICE_JPEG_IMG_COMPR = "spice_jpeg_wan_compression"
 681 HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR = "spice_zlib_glz_wan_compression"
 682 HV_KVM_SPICE_STREAMING_VIDEO_DETECTION = "spice_streaming_video"
 683 HV_KVM_SPICE_AUDIO_COMPR = "spice_playback_compression"
 684 HV_ACPI = "acpi"
 685 HV_PAE = "pae"
 686 HV_USE_BOOTLOADER = "use_bootloader"
 687 HV_BOOTLOADER_ARGS = "bootloader_args"
 688 HV_BOOTLOADER_PATH = "bootloader_path"
 689 HV_KERNEL_ARGS = "kernel_args"
 690 HV_KERNEL_PATH = "kernel_path"
 691 HV_INITRD_PATH = "initrd_path"
 692 HV_ROOT_PATH = "root_path"
 693 HV_SERIAL_CONSOLE = "serial_console"
 694 HV_USB_MOUSE = "usb_mouse"
 695 HV_KEYMAP = "keymap"
 696 HV_DEVICE_MODEL = "device_model"
 697 HV_INIT_SCRIPT = "init_script"
 698 HV_MIGRATION_PORT = "migration_port"
 699 HV_MIGRATION_BANDWIDTH = "migration_bandwidth"
 700 HV_MIGRATION_DOWNTIME = "migration_downtime"
 701 HV_MIGRATION_MODE = "migration_mode"
 702 HV_USE_LOCALTIME = "use_localtime"
 703 HV_DISK_CACHE = "disk_cache"
 704 HV_SECURITY_MODEL = "security_model"
 705 HV_SECURITY_DOMAIN = "security_domain"
 706 HV_KVM_FLAG = "kvm_flag"
 707 HV_VHOST_NET = "vhost_net"
 708 HV_KVM_USE_CHROOT = "use_chroot"
 709 HV_CPU_MASK = "cpu_mask"
 710 HV_MEM_PATH = "mem_path"
 711 HV_BLOCKDEV_PREFIX = "blockdev_prefix"
 712 HV_REBOOT_BEHAVIOR = "reboot_behavior"
 713
 714 HVS_PARAMETER_TYPES = {
 715   HV_BOOT_ORDER: VTYPE_STRING,
 716   HV_KVM_FLOPPY_IMAGE_PATH: VTYPE_STRING,
 717   HV_CDROM_IMAGE_PATH: VTYPE_STRING,
 718   HV_KVM_CDROM2_IMAGE_PATH: VTYPE_STRING,
 719   HV_NIC_TYPE: VTYPE_STRING,
 720   HV_DISK_TYPE: VTYPE_STRING,
 721   HV_KVM_CDROM_DISK_TYPE: VTYPE_STRING,
 722   HV_VNC_PASSWORD_FILE: VTYPE_STRING,
 723   HV_VNC_BIND_ADDRESS: VTYPE_STRING,
 724   HV_VNC_TLS: VTYPE_BOOL,
 725   HV_VNC_X509: VTYPE_STRING,
 726   HV_VNC_X509_VERIFY: VTYPE_BOOL,
 727   HV_KVM_SPICE_BIND: VTYPE_STRING,
 728   HV_KVM_SPICE_IP_VERSION: VTYPE_INT,
 729   HV_KVM_SPICE_PASSWORD_FILE: VTYPE_STRING,
 730   HV_KVM_SPICE_LOSSLESS_IMG_COMPR: VTYPE_STRING,
 731   HV_KVM_SPICE_JPEG_IMG_COMPR: VTYPE_STRING,
 732   HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR: VTYPE_STRING,
 733   HV_KVM_SPICE_STREAMING_VIDEO_DETECTION: VTYPE_STRING,
 734   HV_KVM_SPICE_AUDIO_COMPR: VTYPE_BOOL,
 735   HV_ACPI: VTYPE_BOOL,
 736   HV_PAE: VTYPE_BOOL,
 737   HV_USE_BOOTLOADER: VTYPE_BOOL,
 738   HV_BOOTLOADER_PATH: VTYPE_STRING,
 739   HV_BOOTLOADER_ARGS: VTYPE_STRING,
 740   HV_KERNEL_PATH: VTYPE_STRING,
 741   HV_KERNEL_ARGS: VTYPE_STRING,
 742   HV_INITRD_PATH: VTYPE_STRING,
 743   HV_ROOT_PATH: VTYPE_MAYBE_STRING,
 744   HV_SERIAL_CONSOLE: VTYPE_BOOL,
 745   HV_USB_MOUSE: VTYPE_STRING,
 746   HV_KEYMAP: VTYPE_STRING,
 747   HV_DEVICE_MODEL: VTYPE_STRING,
 748   HV_INIT_SCRIPT: VTYPE_STRING,
 749   HV_MIGRATION_PORT: VTYPE_INT,
 750   HV_MIGRATION_BANDWIDTH: VTYPE_INT,
 751   HV_MIGRATION_DOWNTIME: VTYPE_INT,
 752   HV_MIGRATION_MODE: VTYPE_STRING,
 753   HV_USE_LOCALTIME: VTYPE_BOOL,
 754   HV_DISK_CACHE: VTYPE_STRING,
 755   HV_SECURITY_MODEL: VTYPE_STRING,
 756   HV_SECURITY_DOMAIN: VTYPE_STRING,
 757   HV_KVM_FLAG: VTYPE_STRING,
 758   HV_VHOST_NET: VTYPE_BOOL,
 759   HV_KVM_USE_CHROOT: VTYPE_BOOL,
 760   HV_CPU_MASK: VTYPE_STRING,
 761   HV_MEM_PATH: VTYPE_STRING,
 762   HV_BLOCKDEV_PREFIX: VTYPE_STRING,
 763   HV_REBOOT_BEHAVIOR: VTYPE_STRING,
 764   }
 765
 766 HVS_PARAMETERS = frozenset(HVS_PARAMETER_TYPES.keys())
 767
 768 # Node info keys
 769 HV_NODEINFO_KEY_VERSION = "hv_version"
 770
 771 # Backend parameter names
 772 BE_MEMORY = "memory"
 773 BE_VCPUS = "vcpus"
 774 BE_AUTO_BALANCE = "auto_balance"
 775
 776 BES_PARAMETER_TYPES = {
 777     BE_MEMORY: VTYPE_SIZE,
 778     BE_VCPUS: VTYPE_INT,
 779     BE_AUTO_BALANCE: VTYPE_BOOL,
 780     }
 781
 782 BES_PARAMETERS = frozenset(BES_PARAMETER_TYPES.keys())
 783
 784 # Node parameter names
 785 ND_OOB_PROGRAM = "oob_program"
 786
 787 NDS_PARAMETER_TYPES = {
 788     ND_OOB_PROGRAM: VTYPE_MAYBE_STRING,
 789     }
 790
 791 NDS_PARAMETERS = frozenset(NDS_PARAMETER_TYPES.keys())
 792
 793 # OOB supported commands
 794 OOB_POWER_ON = "power-on"
 795 OOB_POWER_OFF = "power-off"
 796 OOB_POWER_CYCLE = "power-cycle"
 797 OOB_POWER_STATUS = "power-status"
 798 OOB_HEALTH = "health"
 799
 800 OOB_COMMANDS = frozenset([
 801   OOB_POWER_ON,
 802   OOB_POWER_OFF,
 803   OOB_POWER_CYCLE,
 804   OOB_POWER_STATUS,
 805   OOB_HEALTH
 806   ])
 807
 808 OOB_POWER_STATUS_POWERED = "powered"
 809
 810 OOB_TIMEOUT = 60 # 60 seconds
 811 OOB_POWER_DELAY = 2.0 # 2 seconds
 812
 813 OOB_STATUS_OK = "OK"
 814 OOB_STATUS_WARNING = "WARNING"
 815 OOB_STATUS_CRITICAL = "CRITICAL"
 816 OOB_STATUS_UNKNOWN = "UNKNOWN"
 817
 818 OOB_STATUSES = frozenset([
 819   OOB_STATUS_OK,
 820   OOB_STATUS_WARNING,
 821   OOB_STATUS_CRITICAL,
 822   OOB_STATUS_UNKNOWN,
 823   ])
 824
 825 # Instance Parameters Profile
 826 PP_DEFAULT = "default"
 827
 828 # NIC_* constants are used inside the ganeti config
 829 NIC_MODE = "mode"
 830 NIC_LINK = "link"
 831
 832 NIC_MODE_BRIDGED = "bridged"
 833 NIC_MODE_ROUTED = "routed"
 834
 835 NIC_VALID_MODES = frozenset([NIC_MODE_BRIDGED, NIC_MODE_ROUTED])
 836
 837 NICS_PARAMETER_TYPES = {
 838     NIC_MODE: VTYPE_STRING,
 839     NIC_LINK: VTYPE_STRING,
 840     }
 841
 842 NICS_PARAMETERS = frozenset(NICS_PARAMETER_TYPES.keys())
 843
 844 # IDISK_* constants are used in opcodes, to create/change disks
 845 IDISK_SIZE = "size"
 846 IDISK_MODE = "mode"
 847 IDISK_ADOPT = "adopt"
 848 IDISK_VG = "vg"
 849 IDISK_METAVG = "metavg"
 850 IDISK_PARAMS_TYPES = {
 851   IDISK_SIZE: VTYPE_SIZE,
 852   IDISK_MODE: VTYPE_STRING,
 853   IDISK_ADOPT: VTYPE_STRING,
 854   IDISK_VG: VTYPE_STRING,
 855   IDISK_METAVG: VTYPE_STRING,
 856   }
 857 IDISK_PARAMS = frozenset(IDISK_PARAMS_TYPES.keys())
 858
 859 # INIC_* constants are used in opcodes, to create/change nics
 860 INIC_MAC = "mac"
 861 INIC_IP = "ip"
 862 INIC_MODE = "mode"
 863 INIC_LINK = "link"
 864 INIC_PARAMS_TYPES = {
 865   INIC_IP: VTYPE_MAYBE_STRING,
 866   INIC_LINK: VTYPE_STRING,
 867   INIC_MAC: VTYPE_STRING,
 868   INIC_MODE: VTYPE_STRING,
 869   }
 870 INIC_PARAMS = frozenset(INIC_PARAMS_TYPES.keys())
 871
 872 # Hypervisor constants
 873 HT_XEN_PVM = "xen-pvm"
 874 HT_FAKE = "fake"
 875 HT_XEN_HVM = "xen-hvm"
 876 HT_KVM = "kvm"
 877 HT_CHROOT = "chroot"
 878 HT_LXC = "lxc"
 879 HYPER_TYPES = frozenset([
 880   HT_XEN_PVM,
 881   HT_FAKE,
 882   HT_XEN_HVM,
 883   HT_KVM,
 884   HT_CHROOT,
 885   HT_LXC,
 886   ])
 887 HTS_REQ_PORT = frozenset([HT_XEN_HVM, HT_KVM])
 888
 889 VNC_BASE_PORT = 5900
 890 VNC_PASSWORD_FILE = CONF_DIR + "/vnc-cluster-password"
 891 VNC_DEFAULT_BIND_ADDRESS = IP4_ADDRESS_ANY
 892
 893 # NIC types
 894 HT_NIC_RTL8139 = "rtl8139"
 895 HT_NIC_NE2K_PCI = "ne2k_pci"
 896 HT_NIC_NE2K_ISA = "ne2k_isa"
 897 HT_NIC_I82551 = "i82551"
 898 HT_NIC_I85557B = "i82557b"
 899 HT_NIC_I8259ER = "i82559er"
 900 HT_NIC_PCNET = "pcnet"
 901 HT_NIC_E1000 = "e1000"
 902 HT_NIC_PARAVIRTUAL = HT_DISK_PARAVIRTUAL = "paravirtual"
 903
 904 HT_HVM_VALID_NIC_TYPES = frozenset([
 905   HT_NIC_RTL8139,
 906   HT_NIC_NE2K_PCI,
 907   HT_NIC_E1000,
 908   HT_NIC_NE2K_ISA,
 909   HT_NIC_PARAVIRTUAL
 910   ])
 911 HT_KVM_VALID_NIC_TYPES = frozenset([
 912   HT_NIC_RTL8139,
 913   HT_NIC_NE2K_PCI,
 914   HT_NIC_NE2K_ISA,
 915   HT_NIC_I82551,
 916   HT_NIC_I85557B,
 917   HT_NIC_I8259ER,
 918   HT_NIC_PCNET,
 919   HT_NIC_E1000,
 920   HT_NIC_PARAVIRTUAL
 921   ])
 922
 923 # Disk types
 924 HT_DISK_IOEMU = "ioemu"
 925 HT_DISK_IDE = "ide"
 926 HT_DISK_SCSI = "scsi"
 927 HT_DISK_SD = "sd"
 928 HT_DISK_MTD = "mtd"
 929 HT_DISK_PFLASH = "pflash"
 930
 931 HT_CACHE_DEFAULT = "default"
 932 HT_CACHE_NONE = "none"
 933 HT_CACHE_WTHROUGH = "writethrough"
 934 HT_CACHE_WBACK = "writeback"
 935 HT_VALID_CACHE_TYPES = frozenset([
 936   HT_CACHE_DEFAULT,
 937   HT_CACHE_NONE,
 938   HT_CACHE_WTHROUGH,
 939   HT_CACHE_WBACK
 940   ])
 941
 942 HT_HVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IOEMU])
 943 HT_KVM_VALID_DISK_TYPES = frozenset([
 944   HT_DISK_PARAVIRTUAL,
 945   HT_DISK_IDE,
 946   HT_DISK_SCSI,
 947   HT_DISK_SD,
 948   HT_DISK_MTD,
 949   HT_DISK_PFLASH
 950   ])
 951
 952 # Mouse types:
 953 HT_MOUSE_MOUSE = "mouse"
 954 HT_MOUSE_TABLET = "tablet"
 955
 956 HT_KVM_VALID_MOUSE_TYPES = frozenset([HT_MOUSE_MOUSE, HT_MOUSE_TABLET])
 957
 958 # Boot order
 959 HT_BO_FLOPPY = "floppy"
 960 HT_BO_CDROM = "cdrom"
 961 HT_BO_DISK = "disk"
 962 HT_BO_NETWORK = "network"
 963
 964 HT_KVM_VALID_BO_TYPES = frozenset([
 965   HT_BO_FLOPPY,
 966   HT_BO_CDROM,
 967   HT_BO_DISK,
 968   HT_BO_NETWORK
 969   ])
 970
 971 # SPICE lossless image compression options
 972 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_GLZ = "auto_glz"
 973 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_LZ = "auto_lz"
 974 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_QUIC = "quic"
 975 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_GLZ = "glz"
 976 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_LZ = "lz"
 977 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_OFF = "off"
 978
 979 HT_KVM_SPICE_VALID_LOSSLESS_IMG_COMPR_OPTIONS = frozenset([
 980   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_GLZ,
 981   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_LZ,
 982   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_QUIC,
 983   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_GLZ,
 984   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_LZ,
 985   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_OFF,
 986   ])
 987
 988 # SPICE lossy image compression options (valid for both jpeg and zlib-glz)
 989 HT_KVM_SPICE_LOSSY_IMG_COMPR_AUTO = "auto"
 990 HT_KVM_SPICE_LOSSY_IMG_COMPR_NEVER = "never"
 991 HT_KVM_SPICE_LOSSY_IMG_COMPR_ALWAYS = "always"
 992
 993 HT_KVM_SPICE_VALID_LOSSY_IMG_COMPR_OPTIONS = frozenset([
 994   HT_KVM_SPICE_LOSSY_IMG_COMPR_AUTO,
 995   HT_KVM_SPICE_LOSSY_IMG_COMPR_NEVER,
 996   HT_KVM_SPICE_LOSSY_IMG_COMPR_ALWAYS,
 997   ])
 998
 999 # SPICE video stream detection
1000 HT_KVM_SPICE_VIDEO_STREAM_DETECTION_OFF = "off"
1001 HT_KVM_SPICE_VIDEO_STREAM_DETECTION_ALL = "all"
1002 HT_KVM_SPICE_VIDEO_STREAM_DETECTION_FILTER = "filter"
1003
1004 HT_KVM_SPICE_VALID_VIDEO_STREAM_DETECTION_OPTIONS = frozenset([
1005   HT_KVM_SPICE_VIDEO_STREAM_DETECTION_OFF,
1006   HT_KVM_SPICE_VIDEO_STREAM_DETECTION_ALL,
1007   HT_KVM_SPICE_VIDEO_STREAM_DETECTION_FILTER,
1008   ])
1009
1010 # Security models
1011 HT_SM_NONE = "none"
1012 HT_SM_USER = "user"
1013 HT_SM_POOL = "pool"
1014
1015 HT_KVM_VALID_SM_TYPES = frozenset([HT_SM_NONE, HT_SM_USER, HT_SM_POOL])
1016
1017 # Kvm flag values
1018 HT_KVM_ENABLED = "enabled"
1019 HT_KVM_DISABLED = "disabled"
1020
1021 HT_KVM_FLAG_VALUES = frozenset([HT_KVM_ENABLED, HT_KVM_DISABLED])
1022
1023 # Migration type
1024 HT_MIGRATION_LIVE = "live"
1025 HT_MIGRATION_NONLIVE = "non-live"
1026 HT_MIGRATION_MODES = frozenset([HT_MIGRATION_LIVE, HT_MIGRATION_NONLIVE])
1027
1028 # Cluster Verify steps
1029 VERIFY_NPLUSONE_MEM = "nplusone_mem"
1030 VERIFY_OPTIONAL_CHECKS = frozenset([VERIFY_NPLUSONE_MEM])
1031
1032 # Node verify constants
1033 NV_DRBDHELPER = "drbd-helper"
1034 NV_DRBDLIST = "drbd-list"
1035 NV_FILELIST = "filelist"
1036 NV_HVINFO = "hvinfo"
1037 NV_HYPERVISOR = "hypervisor"
1038 NV_HVPARAMS = "hvparms"
1039 NV_INSTANCELIST = "instancelist"
1040 NV_LVLIST = "lvlist"
1041 NV_MASTERIP = "master-ip"
1042 NV_NODELIST = "nodelist"
1043 NV_NODENETTEST = "node-net-test"
1044 NV_NODESETUP = "nodesetup"
1045 NV_OSLIST = "oslist"
1046 NV_PVLIST = "pvlist"
1047 NV_TIME = "time"
1048 NV_VERSION = "version"
1049 NV_VGLIST = "vglist"
1050 NV_VMNODES = "vmnodes"
1051 NV_OOB_PATHS = "oob-paths"
1052 NV_BRIDGES = "bridges"
1053
1054 # Instance status
1055 INSTST_RUNNING = "running"
1056 INSTST_ADMINDOWN = "ADMIN_down"
1057 INSTST_NODEOFFLINE = "ERROR_nodeoffline"
1058 INSTST_NODEDOWN = "ERROR_nodedown"
1059 INSTST_WRONGNODE = "ERROR_wrongnode"
1060 INSTST_ERRORUP = "ERROR_up"
1061 INSTST_ERRORDOWN = "ERROR_down"
1062 INSTST_ALL = frozenset([
1063   INSTST_RUNNING,
1064   INSTST_ADMINDOWN,
1065   INSTST_NODEOFFLINE,
1066   INSTST_NODEDOWN,
1067   INSTST_WRONGNODE,
1068   INSTST_ERRORUP,
1069   INSTST_ERRORDOWN,
1070   ])
1071
1072 # Node roles
1073 NR_REGULAR = "R"
1074 NR_MASTER = "M"
1075 NR_MCANDIDATE = "C"
1076 NR_DRAINED = "D"
1077 NR_OFFLINE = "O"
1078 NR_ALL = frozenset([
1079   NR_REGULAR,
1080   NR_MASTER,
1081   NR_MCANDIDATE,
1082   NR_DRAINED,
1083   NR_OFFLINE,
1084   ])
1085
1086 # SSL certificate check constants (in days)
1087 SSL_CERT_EXPIRATION_WARN = 30
1088 SSL_CERT_EXPIRATION_ERROR = 7
1089
1090 # Allocator framework constants
1091 IALLOCATOR_VERSION = 2
1092 IALLOCATOR_DIR_IN = "in"
1093 IALLOCATOR_DIR_OUT = "out"
1094 VALID_IALLOCATOR_DIRECTIONS = frozenset([
1095   IALLOCATOR_DIR_IN,
1096   IALLOCATOR_DIR_OUT,
1097   ])
1098 IALLOCATOR_MODE_ALLOC = "allocate"
1099 IALLOCATOR_MODE_RELOC = "relocate"
1100 IALLOCATOR_MODE_CHG_GROUP = "change-group"
1101 IALLOCATOR_MODE_NODE_EVAC = "node-evacuate"
1102 VALID_IALLOCATOR_MODES = frozenset([
1103   IALLOCATOR_MODE_ALLOC,
1104   IALLOCATOR_MODE_RELOC,
1105   IALLOCATOR_MODE_CHG_GROUP,
1106   IALLOCATOR_MODE_NODE_EVAC,
1107   ])
1108 IALLOCATOR_SEARCH_PATH = _autoconf.IALLOCATOR_SEARCH_PATH
1109
1110 IALLOCATOR_NEVAC_PRI = "primary-only"
1111 IALLOCATOR_NEVAC_SEC = "secondary-only"
1112 IALLOCATOR_NEVAC_ALL = "all"
1113 IALLOCATOR_NEVAC_MODES = frozenset([
1114   IALLOCATOR_NEVAC_PRI,
1115   IALLOCATOR_NEVAC_SEC,
1116   IALLOCATOR_NEVAC_ALL,
1117   ])
1118
1119 # Node evacuation
1120 NODE_EVAC_PRI = "primary-only"
1121 NODE_EVAC_SEC = "secondary-only"
1122 NODE_EVAC_ALL = "all"
1123 NODE_EVAC_MODES = frozenset([
1124   NODE_EVAC_PRI,
1125   NODE_EVAC_SEC,
1126   NODE_EVAC_ALL,
1127   ])
1128
1129 # Job queue
1130 JOB_QUEUE_VERSION = 1
1131 JOB_QUEUE_LOCK_FILE = QUEUE_DIR + "/lock"
1132 JOB_QUEUE_VERSION_FILE = QUEUE_DIR + "/version"
1133 JOB_QUEUE_SERIAL_FILE = QUEUE_DIR + "/serial"
1134 JOB_QUEUE_ARCHIVE_DIR = QUEUE_DIR + "/archive"
1135 JOB_QUEUE_DRAIN_FILE = QUEUE_DIR + "/drain"
1136 JOB_QUEUE_SIZE_HARD_LIMIT = 5000
1137 JOB_QUEUE_DIRS = [QUEUE_DIR, JOB_QUEUE_ARCHIVE_DIR]
1138 JOB_QUEUE_DIRS_MODE = SECURE_DIR_MODE
1139
1140 JOB_ID_TEMPLATE = r"\d+"
1141 JOB_FILE_RE = re.compile(r"^job-(%s)$" % JOB_ID_TEMPLATE)
1142
1143 # unchanged job return
1144 JOB_NOTCHANGED = "nochange"
1145
1146 # Job status
1147 JOB_STATUS_QUEUED = "queued"
1148 JOB_STATUS_WAITING = "waiting"
1149 JOB_STATUS_CANCELING = "canceling"
1150 JOB_STATUS_RUNNING = "running"
1151 JOB_STATUS_CANCELED = "canceled"
1152 JOB_STATUS_SUCCESS = "success"
1153 JOB_STATUS_ERROR = "error"
1154 JOBS_FINALIZED = frozenset([
1155   JOB_STATUS_CANCELED,
1156   JOB_STATUS_SUCCESS,
1157   JOB_STATUS_ERROR,
1158   ])
1159 JOB_STATUS_ALL = frozenset([
1160   JOB_STATUS_QUEUED,
1161   JOB_STATUS_WAITING,
1162   JOB_STATUS_CANCELING,
1163   JOB_STATUS_RUNNING,
1164   ]) | JOBS_FINALIZED
1165
1166 # OpCode status
1167 # not yet finalized
1168 OP_STATUS_QUEUED = "queued"
1169 OP_STATUS_WAITING = "waiting"
1170 OP_STATUS_CANCELING = "canceling"
1171 OP_STATUS_RUNNING = "running"
1172 # finalized
1173 OP_STATUS_CANCELED = "canceled"
1174 OP_STATUS_SUCCESS = "success"
1175 OP_STATUS_ERROR = "error"
1176 OPS_FINALIZED = frozenset([
1177   OP_STATUS_CANCELED,
1178   OP_STATUS_SUCCESS,
1179   OP_STATUS_ERROR
1180   ])
1181
1182 # OpCode priority
1183 OP_PRIO_LOWEST = +19
1184 OP_PRIO_HIGHEST = -20
1185
1186 OP_PRIO_LOW = +10
1187 OP_PRIO_NORMAL = 0
1188 OP_PRIO_HIGH = -10
1189
1190 OP_PRIO_SUBMIT_VALID = frozenset([
1191   OP_PRIO_LOW,
1192   OP_PRIO_NORMAL,
1193   OP_PRIO_HIGH,
1194   ])
1195
1196 OP_PRIO_DEFAULT = OP_PRIO_NORMAL
1197
1198 # Execution log types
1199 ELOG_MESSAGE = "message"
1200 ELOG_PROGRESS = "progress"
1201 ELOG_REMOTE_IMPORT = "remote-import"
1202 ELOG_JQUEUE_TEST = "jqueue-test"
1203
1204 # /etc/hosts modification
1205 ETC_HOSTS_ADD = "add"
1206 ETC_HOSTS_REMOVE = "remove"
1207
1208 # Job queue test
1209 JQT_MSGPREFIX = "TESTMSG="
1210 JQT_EXPANDNAMES = "expandnames"
1211 JQT_EXEC = "exec"
1212 JQT_LOGMSG = "logmsg"
1213 JQT_STARTMSG = "startmsg"
1214 JQT_ALL = frozenset([
1215   JQT_EXPANDNAMES,
1216   JQT_EXEC,
1217   JQT_LOGMSG,
1218   JQT_STARTMSG,
1219   ])
1220
1221 # Query resources
1222 QR_INSTANCE = "instance"
1223 QR_NODE = "node"
1224 QR_LOCK = "lock"
1225 QR_GROUP = "group"
1226 QR_OS = "os"
1227
1228 #: List of resources which can be queried using L{opcodes.OpQuery}
1229 QR_VIA_OP = frozenset([QR_INSTANCE, QR_NODE, QR_GROUP, QR_OS])
1230
1231 #: List of resources which can be queried using Local UniX Interface
1232 QR_VIA_LUXI = QR_VIA_OP.union([
1233   QR_LOCK,
1234   ])
1235
1236 #: List of resources which can be queried using RAPI
1237 QR_VIA_RAPI = QR_VIA_LUXI
1238
1239 # Query field types
1240 QFT_UNKNOWN = "unknown"
1241 QFT_TEXT = "text"
1242 QFT_BOOL = "bool"
1243 QFT_NUMBER = "number"
1244 QFT_UNIT = "unit"
1245 QFT_TIMESTAMP = "timestamp"
1246 QFT_OTHER = "other"
1247
1248 #: All query field types
1249 QFT_ALL = frozenset([
1250   QFT_UNKNOWN,
1251   QFT_TEXT,
1252   QFT_BOOL,
1253   QFT_NUMBER,
1254   QFT_UNIT,
1255   QFT_TIMESTAMP,
1256   QFT_OTHER,
1257   ])
1258
1259 # Query result field status (don't change or reuse values as they're used by
1260 # clients)
1261 #: Normal field status
1262 RS_NORMAL = 0
1263 #: Unknown field
1264 RS_UNKNOWN = 1
1265 #: No data (e.g. RPC error), can be used instead of L{RS_OFFLINE}
1266 RS_NODATA = 2
1267 #: Value unavailable/unsupported for item; if this field is supported
1268 #: but we cannot get the data for the moment, RS_NODATA or
1269 #: RS_OFFLINE should be used
1270 RS_UNAVAIL = 3
1271 #: Resource marked offline
1272 RS_OFFLINE = 4
1273
1274 RS_ALL = frozenset([
1275   RS_NORMAL,
1276   RS_UNKNOWN,
1277   RS_NODATA,
1278   RS_UNAVAIL,
1279   RS_OFFLINE,
1280   ])
1281
1282 #: Dictionary with special field cases and their verbose/terse formatting
1283 RSS_DESCRIPTION = {
1284   RS_UNKNOWN: ("(unknown)", "??"),
1285   RS_NODATA: ("(nodata)", "?"),
1286   RS_OFFLINE: ("(offline)", "*"),
1287   RS_UNAVAIL: ("(unavail)", "-"),
1288   }
1289
1290 # max dynamic devices
1291 MAX_NICS = 8
1292 MAX_DISKS = 16
1293
1294 # SSCONF keys
1295 SS_CLUSTER_NAME = "cluster_name"
1296 SS_CLUSTER_TAGS = "cluster_tags"
1297 SS_FILE_STORAGE_DIR = "file_storage_dir"
1298 SS_SHARED_FILE_STORAGE_DIR = "shared_file_storage_dir"
1299 SS_MASTER_CANDIDATES = "master_candidates"
1300 SS_MASTER_CANDIDATES_IPS = "master_candidates_ips"
1301 SS_MASTER_IP = "master_ip"
1302 SS_MASTER_NETDEV = "master_netdev"
1303 SS_MASTER_NODE = "master_node"
1304 SS_NODE_LIST = "node_list"
1305 SS_NODE_PRIMARY_IPS = "node_primary_ips"
1306 SS_NODE_SECONDARY_IPS = "node_secondary_ips"
1307 SS_OFFLINE_NODES = "offline_nodes"
1308 SS_ONLINE_NODES = "online_nodes"
1309 SS_PRIMARY_IP_FAMILY = "primary_ip_family"
1310 SS_INSTANCE_LIST = "instance_list"
1311 SS_RELEASE_VERSION = "release_version"
1312 SS_HYPERVISOR_LIST = "hypervisor_list"
1313 SS_MAINTAIN_NODE_HEALTH = "maintain_node_health"
1314 SS_UID_POOL = "uid_pool"
1315 SS_NODEGROUPS = "nodegroups"
1316
1317 SS_FILE_PERMS = 0444
1318
1319 # cluster wide default parameters
1320 DEFAULT_ENABLED_HYPERVISOR = HT_XEN_PVM
1321
1322 HVC_DEFAULTS = {
1323   HT_XEN_PVM: {
1324     HV_USE_BOOTLOADER: False,
1325     HV_BOOTLOADER_PATH: XEN_BOOTLOADER,
1326     HV_BOOTLOADER_ARGS: "",
1327     HV_KERNEL_PATH: "/boot/vmlinuz-2.6-xenU",
1328     HV_INITRD_PATH: "",
1329     HV_ROOT_PATH: "/dev/sda1",
1330     HV_KERNEL_ARGS: "ro",
1331     HV_MIGRATION_PORT: 8002,
1332     HV_MIGRATION_MODE: HT_MIGRATION_LIVE,
1333     HV_BLOCKDEV_PREFIX: "sd",
1334     HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
1335     },
1336   HT_XEN_HVM: {
1337     HV_BOOT_ORDER: "cd",
1338     HV_CDROM_IMAGE_PATH: "",
1339     HV_NIC_TYPE: HT_NIC_RTL8139,
1340     HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
1341     HV_VNC_BIND_ADDRESS: IP4_ADDRESS_ANY,
1342     HV_VNC_PASSWORD_FILE: VNC_PASSWORD_FILE,
1343     HV_ACPI: True,
1344     HV_PAE: True,
1345     HV_KERNEL_PATH: "/usr/lib/xen/boot/hvmloader",
1346     HV_DEVICE_MODEL: "/usr/lib/xen/bin/qemu-dm",
1347     HV_MIGRATION_PORT: 8002,
1348     HV_MIGRATION_MODE: HT_MIGRATION_NONLIVE,
1349     HV_USE_LOCALTIME: False,
1350     HV_BLOCKDEV_PREFIX: "hd",
1351     HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
1352     },
1353   HT_KVM: {
1354     HV_KERNEL_PATH: "/boot/vmlinuz-2.6-kvmU",
1355     HV_INITRD_PATH: "",
1356     HV_KERNEL_ARGS: "ro",
1357     HV_ROOT_PATH: "/dev/vda1",
1358     HV_ACPI: True,
1359     HV_SERIAL_CONSOLE: True,
1360     HV_VNC_BIND_ADDRESS: "",
1361     HV_VNC_TLS: False,
1362     HV_VNC_X509: "",
1363     HV_VNC_X509_VERIFY: False,
1364     HV_VNC_PASSWORD_FILE: "",
1365     HV_KVM_SPICE_BIND: "",
1366     HV_KVM_SPICE_IP_VERSION: IFACE_NO_IP_VERSION_SPECIFIED,
1367     HV_KVM_SPICE_PASSWORD_FILE: "",
1368     HV_KVM_SPICE_LOSSLESS_IMG_COMPR: "",
1369     HV_KVM_SPICE_JPEG_IMG_COMPR: "",
1370     HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR: "",
1371     HV_KVM_SPICE_STREAMING_VIDEO_DETECTION: "",
1372     HV_KVM_SPICE_AUDIO_COMPR: True,
1373     HV_KVM_FLOPPY_IMAGE_PATH: "",
1374     HV_CDROM_IMAGE_PATH: "",
1375     HV_KVM_CDROM2_IMAGE_PATH: "",
1376     HV_BOOT_ORDER: HT_BO_DISK,
1377     HV_NIC_TYPE: HT_NIC_PARAVIRTUAL,
1378     HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
1379     HV_KVM_CDROM_DISK_TYPE: "",
1380     HV_USB_MOUSE: "",
1381     HV_KEYMAP: "",
1382     HV_MIGRATION_PORT: 8102,
1383     HV_MIGRATION_BANDWIDTH: 32, # MiB/s
1384     HV_MIGRATION_DOWNTIME: 30,  # ms
1385     HV_MIGRATION_MODE: HT_MIGRATION_LIVE,
1386     HV_USE_LOCALTIME: False,
1387     HV_DISK_CACHE: HT_CACHE_DEFAULT,
1388     HV_SECURITY_MODEL: HT_SM_NONE,
1389     HV_SECURITY_DOMAIN: "",
1390     HV_KVM_FLAG: "",
1391     HV_VHOST_NET: False,
1392     HV_KVM_USE_CHROOT: False,
1393     HV_MEM_PATH: "",
1394     HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
1395     },
1396   HT_FAKE: {
1397     },
1398   HT_CHROOT: {
1399     HV_INIT_SCRIPT: "/ganeti-chroot",
1400     },
1401   HT_LXC: {
1402     HV_CPU_MASK: "",
1403     },
1404   }
1405
1406 HVC_GLOBALS = frozenset([
1407   HV_MIGRATION_PORT,
1408   HV_MIGRATION_BANDWIDTH,
1409   HV_MIGRATION_MODE,
1410   ])
1411
1412 BEC_DEFAULTS = {
1413   BE_MEMORY: 128,
1414   BE_VCPUS: 1,
1415   BE_AUTO_BALANCE: True,
1416   }
1417
1418 NDC_DEFAULTS = {
1419   ND_OOB_PROGRAM: None,
1420   }
1421
1422 NICC_DEFAULTS = {
1423   NIC_MODE: NIC_MODE_BRIDGED,
1424   NIC_LINK: DEFAULT_BRIDGE,
1425   }
1426
1427 MASTER_POOL_SIZE_DEFAULT = 10
1428
1429 CONFD_PROTOCOL_VERSION = 1
1430
1431 CONFD_REQ_PING = 0
1432 CONFD_REQ_NODE_ROLE_BYNAME = 1
1433 CONFD_REQ_NODE_PIP_BY_INSTANCE_IP = 2
1434 CONFD_REQ_CLUSTER_MASTER = 3
1435 CONFD_REQ_NODE_PIP_LIST = 4
1436 CONFD_REQ_MC_PIP_LIST = 5
1437 CONFD_REQ_INSTANCES_IPS_LIST = 6
1438
1439 # Confd request query fields. These are used to narrow down queries.
1440 # These must be strings rather than integers, because json-encoding
1441 # converts them to strings anyway, as they're used as dict-keys.
1442 CONFD_REQQ_LINK = "0"
1443 CONFD_REQQ_IP = "1"
1444 CONFD_REQQ_IPLIST = "2"
1445 CONFD_REQQ_FIELDS = "3"
1446
1447 CONFD_REQFIELD_NAME = "0"
1448 CONFD_REQFIELD_IP = "1"
1449 CONFD_REQFIELD_MNODE_PIP = "2"
1450
1451 CONFD_REQS = frozenset([
1452   CONFD_REQ_PING,
1453   CONFD_REQ_NODE_ROLE_BYNAME,
1454   CONFD_REQ_NODE_PIP_BY_INSTANCE_IP,
1455   CONFD_REQ_CLUSTER_MASTER,
1456   CONFD_REQ_NODE_PIP_LIST,
1457   CONFD_REQ_MC_PIP_LIST,
1458   CONFD_REQ_INSTANCES_IPS_LIST,
1459   ])
1460
1461 CONFD_REPL_STATUS_OK = 0
1462 CONFD_REPL_STATUS_ERROR = 1
1463 CONFD_REPL_STATUS_NOTIMPLEMENTED = 2
1464
1465 CONFD_REPL_STATUSES = frozenset([
1466   CONFD_REPL_STATUS_OK,
1467   CONFD_REPL_STATUS_ERROR,
1468   CONFD_REPL_STATUS_NOTIMPLEMENTED,
1469   ])
1470
1471 (CONFD_NODE_ROLE_MASTER,
1472  CONFD_NODE_ROLE_CANDIDATE,
1473  CONFD_NODE_ROLE_OFFLINE,
1474  CONFD_NODE_ROLE_DRAINED,
1475  CONFD_NODE_ROLE_REGULAR,
1476  ) = range(5)
1477
1478 # A few common errors for confd
1479 CONFD_ERROR_UNKNOWN_ENTRY = 1
1480 CONFD_ERROR_INTERNAL = 2
1481 CONFD_ERROR_ARGUMENT = 3
1482
1483 # Each request is "salted" by the current timestamp.
1484 # This constants decides how many seconds of skew to accept.
1485 # TODO: make this a default and allow the value to be more configurable
1486 CONFD_MAX_CLOCK_SKEW = 2 * NODE_MAX_CLOCK_SKEW
1487
1488 # When we haven't reloaded the config for more than this amount of seconds, we
1489 # force a test to see if inotify is betraying us.
1490 CONFD_CONFIG_RELOAD_TIMEOUT = 60
1491
1492 # If we receive more than one update in this amount of seconds, we move to
1493 # polling every RATELIMIT seconds, rather than relying on inotify, to be able
1494 # to serve more requests.
1495 CONFD_CONFIG_RELOAD_RATELIMIT = 2
1496
1497 # Magic number prepended to all confd queries.
1498 # This allows us to distinguish different types of confd protocols and handle
1499 # them. For example by changing this we can move the whole payload to be
1500 # compressed, or move away from json.
1501 CONFD_MAGIC_FOURCC = "plj0"
1502
1503 # By default a confd request is sent to the minimum between this number and all
1504 # MCs. 6 was chosen because even in the case of a disastrous 50% response rate,
1505 # we should have enough answers to be able to compare more than one.
1506 CONFD_DEFAULT_REQ_COVERAGE = 6
1507
1508 # Timeout in seconds to expire pending query request in the confd client
1509 # library. We don't actually expect any answer more than 10 seconds after we
1510 # sent a request.
1511 CONFD_CLIENT_EXPIRE_TIMEOUT = 10
1512
1513 # Maximum UDP datagram size.
1514 # On IPv4: 64K - 20 (ip header size) - 8 (udp header size) = 65507
1515 # On IPv6: 64K - 40 (ip6 header size) - 8 (udp header size) = 65487
1516 #   (assuming we can't use jumbo frames)
1517 # We just set this to 60K, which should be enough
1518 MAX_UDP_DATA_SIZE = 61440
1519
1520 # User-id pool minimum/maximum acceptable user-ids.
1521 UIDPOOL_UID_MIN = 0
1522 UIDPOOL_UID_MAX = 2 ** 32 - 1 # Assuming 32 bit user-ids
1523
1524 # Name or path of the pgrep command
1525 PGREP = "pgrep"
1526
1527 # Name of the node group that gets created at cluster init or upgrade
1528 INITIAL_NODE_GROUP_NAME = "default"
1529
1530 # Possible values for NodeGroup.alloc_policy
1531 ALLOC_POLICY_PREFERRED = "preferred"
1532 ALLOC_POLICY_LAST_RESORT = "last_resort"
1533 ALLOC_POLICY_UNALLOCABLE = "unallocable"
1534 VALID_ALLOC_POLICIES = [
1535   ALLOC_POLICY_PREFERRED,
1536   ALLOC_POLICY_LAST_RESORT,
1537   ALLOC_POLICY_UNALLOCABLE,
1538   ]
1539
1540 # Temporary external/shared storage parameters
1541 BLOCKDEV_DRIVER_MANUAL = "manual"
1542
1543 # Whether htools was enabled at compilation time
1544 HTOOLS = _autoconf.HTOOLS
1545 # The hail iallocator
1546 IALLOC_HAIL = "hail"
1547
1548 # Fake opcodes for functions that have hooks attached to them via
1549 # backend.RunLocalHooks
1550 FAKE_OP_MASTER_TURNUP = "OP_CLUSTER_IP_TURNUP"
1551 FAKE_OP_MASTER_TURNDOWN = "OP_CLUSTER_IP_TURNDOWN"