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

   1 #
   2 #
   3
   4 # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 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 import socket
  26
  27 from ganeti import _autoconf
  28 from ganeti import _vcsversion
  29
  30 # various versions
  31 RELEASE_VERSION = _autoconf.PACKAGE_VERSION
  32 OS_API_V10 = 10
  33 OS_API_V15 = 15
  34 OS_API_V20 = 20
  35 OS_API_VERSIONS = frozenset([OS_API_V10, OS_API_V15, OS_API_V20])
  36 VCS_VERSION = _vcsversion.VCS_VERSION
  37 EXPORT_VERSION = 0
  38 RAPI_VERSION = 2
  39
  40
  41 # Format for CONFIG_VERSION:
  42 #   01 03 0123 = 01030123
  43 #   ^^ ^^ ^^^^
  44 #   |  |  + Configuration version/revision
  45 #   |  + Minor version
  46 #   + Major version
  47 #
  48 # It stored as an integer. Make sure not to write an octal number.
  49
  50 # BuildVersion and SplitVersion must be in here because we can't import other
  51 # modules. The cfgupgrade tool must be able to read and write version numbers
  52 # and thus requires these functions. To avoid code duplication, they're kept in
  53 # here.
  54
  55 def BuildVersion(major, minor, revision):
  56   """Calculates int version number from major, minor and revision numbers.
  57
  58   Returns: int representing version number
  59
  60   """
  61   assert isinstance(major, int)
  62   assert isinstance(minor, int)
  63   assert isinstance(revision, int)
  64   return (1000000 * major +
  65             10000 * minor +
  66                 1 * revision)
  67
  68
  69 def SplitVersion(version):
  70   """Splits version number stored in an int.
  71
  72   Returns: tuple; (major, minor, revision)
  73
  74   """
  75   assert isinstance(version, int)
  76
  77   (major, remainder) = divmod(version, 1000000)
  78   (minor, revision) = divmod(remainder, 10000)
  79
  80   return (major, minor, revision)
  81
  82
  83 CONFIG_MAJOR = int(_autoconf.VERSION_MAJOR)
  84 CONFIG_MINOR = int(_autoconf.VERSION_MINOR)
  85 CONFIG_REVISION = 0
  86 CONFIG_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, CONFIG_REVISION)
  87
  88 #: RPC protocol version
  89 PROTOCOL_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, 0)
  90
  91 # user separation
  92 DAEMONS_GROUP = _autoconf.DAEMONS_GROUP
  93 ADMIN_GROUP = _autoconf.ADMIN_GROUP
  94 MASTERD_USER = _autoconf.MASTERD_USER
  95 MASTERD_GROUP = _autoconf.MASTERD_GROUP
  96 RAPI_USER = _autoconf.RAPI_USER
  97 RAPI_GROUP = _autoconf.RAPI_GROUP
  98 CONFD_USER = _autoconf.CONFD_USER
  99 CONFD_GROUP = _autoconf.CONFD_GROUP
 100 NODED_USER = _autoconf.NODED_USER
 101 NODED_GROUP = _autoconf.NODED_GROUP
 102
 103 # cpu pinning separators and constants
 104 CPU_PINNING_SEP = ":"
 105 CPU_PINNING_ALL = "all"
 106 # internal representation of "all"
 107 CPU_PINNING_ALL_VAL = -1
 108 # one "all" entry in a CPU list means CPU pinning is off
 109 CPU_PINNING_OFF = [CPU_PINNING_ALL_VAL]
 110
 111 # A Xen-specific implementation detail - there is no way to actually say
 112 # "use any cpu for pinning" in a Xen configuration file, as opposed to the
 113 # command line, where you can say "xm vcpu-pin <domain> <vcpu> all".
 114 # The workaround used in Xen is "0-63" (see source code function
 115 # xm_vcpu_pin in <xen-source>/tools/python/xen/xm/main.py).
 116 # To support future changes, the following constant is treated as a
 117 # blackbox string that simply means use-any-cpu-for-pinning-under-xen.
 118 CPU_PINNING_ALL_XEN = "0-63"
 119
 120 # A KVM-specific implementation detail - the following value is used
 121 # to set CPU affinity to all processors (#0 through #31), per taskset
 122 # man page.
 123 # FIXME: This only works for machines with up to 32 CPU cores
 124 CPU_PINNING_ALL_KVM = 0xFFFFFFFF
 125
 126 # Wipe
 127 DD_CMD = "dd"
 128 WIPE_BLOCK_SIZE = 1024 ** 2
 129 MAX_WIPE_CHUNK = 1024 # 1GB
 130 MIN_WIPE_CHUNK_PERCENT = 10
 131
 132
 133 # file paths
 134 DATA_DIR = _autoconf.LOCALSTATEDIR + "/lib/ganeti"
 135 RUN_DIR = _autoconf.LOCALSTATEDIR + "/run"
 136 RUN_GANETI_DIR = RUN_DIR + "/ganeti"
 137 BDEV_CACHE_DIR = RUN_GANETI_DIR + "/bdev-cache"
 138 DISK_LINKS_DIR = RUN_GANETI_DIR + "/instance-disks"
 139 RUN_DIRS_MODE = 0775
 140 SOCKET_DIR = RUN_GANETI_DIR + "/socket"
 141 SECURE_DIR_MODE = 0700
 142 SECURE_FILE_MODE = 0600
 143 CRYPTO_KEYS_DIR = RUN_GANETI_DIR + "/crypto"
 144 IMPORT_EXPORT_DIR = RUN_GANETI_DIR + "/import-export"
 145 ADOPTABLE_BLOCKDEV_ROOT = "/dev/disk/"
 146 LOCK_DIR = _autoconf.LOCALSTATEDIR + "/lock"
 147 SSCONF_LOCK_FILE = LOCK_DIR + "/ganeti-ssconf.lock"
 148 # User-id pool lock directory
 149 # The user-ids that are in use have a corresponding lock file in this directory
 150 UIDPOOL_LOCKDIR = RUN_GANETI_DIR + "/uid-pool"
 151 CLUSTER_CONF_FILE = DATA_DIR + "/config.data"
 152 NODED_CERT_FILE = DATA_DIR + "/server.pem"
 153 RAPI_CERT_FILE = DATA_DIR + "/rapi.pem"
 154 CONFD_HMAC_KEY = DATA_DIR + "/hmac.key"
 155 SPICE_CERT_FILE = DATA_DIR + "/spice.pem"
 156 SPICE_CACERT_FILE = DATA_DIR + "/spice-ca.pem"
 157 CLUSTER_DOMAIN_SECRET_FILE = DATA_DIR + "/cluster-domain-secret"
 158 INSTANCE_STATUS_FILE = RUN_GANETI_DIR + "/instance-status"
 159 SSH_KNOWN_HOSTS_FILE = DATA_DIR + "/known_hosts"
 160 RAPI_USERS_FILE = DATA_DIR + "/rapi/users"
 161 QUEUE_DIR = DATA_DIR + "/queue"
 162 DAEMON_UTIL = _autoconf.PKGLIBDIR + "/daemon-util"
 163 SETUP_SSH = _autoconf.TOOLSDIR + "/setup-ssh"
 164 KVM_IFUP = _autoconf.PKGLIBDIR + "/kvm-ifup"
 165 KVM_CONSOLE_WRAPPER = _autoconf.PKGLIBDIR + "/tools/kvm-console-wrapper"
 166 XM_CONSOLE_WRAPPER = _autoconf.PKGLIBDIR + "/tools/xm-console-wrapper"
 167 ETC_HOSTS = "/etc/hosts"
 168 DEFAULT_FILE_STORAGE_DIR = _autoconf.FILE_STORAGE_DIR
 169 DEFAULT_SHARED_FILE_STORAGE_DIR = _autoconf.SHARED_FILE_STORAGE_DIR
 170 ENABLE_FILE_STORAGE = _autoconf.ENABLE_FILE_STORAGE
 171 ENABLE_SHARED_FILE_STORAGE = _autoconf.ENABLE_SHARED_FILE_STORAGE
 172 SYSCONFDIR = _autoconf.SYSCONFDIR
 173 TOOLSDIR = _autoconf.TOOLSDIR
 174 CONF_DIR = SYSCONFDIR + "/ganeti"
 175 USER_SCRIPTS_DIR = CONF_DIR + "/scripts"
 176 ENABLE_CONFD = _autoconf.ENABLE_CONFD
 177 HS_CONFD = _autoconf.HS_CONFD
 178
 179 #: Lock file for watcher, locked in shared mode by watcher; lock in exclusive
 180 # mode to block watcher (see L{cli._RunWhileClusterStoppedHelper.Call}
 181 WATCHER_LOCK_FILE = LOCK_DIR + "/ganeti-watcher.lock"
 182
 183 #: Status file for per-group watcher, locked in exclusive mode by watcher
 184 WATCHER_GROUP_STATE_FILE = DATA_DIR + "/watcher.%s.data"
 185
 186 #: File for per-group instance status, merged into L{INSTANCE_STATUS_FILE} by
 187 #: per-group processes
 188 WATCHER_GROUP_INSTANCE_STATUS_FILE = DATA_DIR + "/watcher.%s.instance-status"
 189
 190 #: File containing Unix timestamp until which watcher should be paused
 191 WATCHER_PAUSEFILE = DATA_DIR + "/watcher.pause"
 192
 193 # Master IP address setup scripts paths (default and user-provided)
 194 DEFAULT_MASTER_SETUP_SCRIPT = TOOLSDIR + "/master-ip-setup"
 195 EXTERNAL_MASTER_SETUP_SCRIPT = USER_SCRIPTS_DIR + "/master-ip-setup"
 196
 197 ALL_CERT_FILES = frozenset([
 198   NODED_CERT_FILE,
 199   RAPI_CERT_FILE,
 200   SPICE_CERT_FILE,
 201   SPICE_CACERT_FILE,
 202   ])
 203
 204 MASTER_SOCKET = SOCKET_DIR + "/ganeti-master"
 205
 206 NODED = "ganeti-noded"
 207 CONFD = "ganeti-confd"
 208 RAPI = "ganeti-rapi"
 209 MASTERD = "ganeti-masterd"
 210 # used in the ganeti-nbma project
 211 NLD = "ganeti-nld"
 212
 213 DAEMONS_PORTS = {
 214   # daemon-name: ("proto", "default-port")
 215   NODED: ("tcp", 1811),
 216   CONFD: ("udp", 1814),
 217   RAPI: ("tcp", 5080),
 218   "ssh": ("tcp", 22),
 219   # used in the ganeti-nbma project
 220   NLD: ("udp", 1816),
 221 }
 222 DEFAULT_NODED_PORT = DAEMONS_PORTS[NODED][1]
 223 DEFAULT_CONFD_PORT = DAEMONS_PORTS[CONFD][1]
 224 DEFAULT_RAPI_PORT = DAEMONS_PORTS[RAPI][1]
 225 # used in the ganeti-nbma project
 226 DEFAULT_NLD_PORT = DAEMONS_PORTS[NLD][1]
 227
 228 FIRST_DRBD_PORT = 11000
 229 LAST_DRBD_PORT = 14999
 230
 231 LOG_DIR = _autoconf.LOCALSTATEDIR + "/log/ganeti/"
 232 DAEMONS_LOGFILES = {
 233   # "daemon-name": "logfile"
 234   NODED: LOG_DIR + "node-daemon.log",
 235   CONFD: LOG_DIR + "conf-daemon.log",
 236   RAPI: LOG_DIR + "rapi-daemon.log",
 237   MASTERD: LOG_DIR + "master-daemon.log",
 238   # used in the ganeti-nbma project
 239   NLD: LOG_DIR + "nl-daemon.log",
 240   }
 241
 242 LOG_OS_DIR = LOG_DIR + "os"
 243 LOG_WATCHER = LOG_DIR + "watcher.log"
 244 LOG_COMMANDS = LOG_DIR + "commands.log"
 245 LOG_BURNIN = LOG_DIR + "burnin.log"
 246 LOG_SETUP_SSH = LOG_DIR + "setup-ssh.log"
 247
 248 DEV_CONSOLE = "/dev/console"
 249
 250 PROC_MOUNTS = "/proc/mounts"
 251
 252 # Local UniX Interface related constants
 253 LUXI_EOM = "\3"
 254 LUXI_VERSION = CONFIG_VERSION
 255
 256 # one of "no", "yes", "only"
 257 SYSLOG_USAGE = _autoconf.SYSLOG_USAGE
 258 SYSLOG_NO = "no"
 259 SYSLOG_YES = "yes"
 260 SYSLOG_ONLY = "only"
 261 SYSLOG_SOCKET = "/dev/log"
 262
 263 OS_SEARCH_PATH = _autoconf.OS_SEARCH_PATH
 264 EXPORT_DIR = _autoconf.EXPORT_DIR
 265
 266 EXPORT_CONF_FILE = "config.ini"
 267
 268 XEN_BOOTLOADER = _autoconf.XEN_BOOTLOADER
 269 XEN_KERNEL = _autoconf.XEN_KERNEL
 270 XEN_INITRD = _autoconf.XEN_INITRD
 271 XEN_CMD_XM = "xm"
 272 XEN_CMD_XL = "xl"
 273 # FIXME: This will be made configurable using hvparams in Ganeti 2.7
 274 XEN_CMD = _autoconf.XEN_CMD
 275
 276 KVM_PATH = _autoconf.KVM_PATH
 277 KVM_KERNEL = _autoconf.KVM_KERNEL
 278 SOCAT_PATH = _autoconf.SOCAT_PATH
 279 SOCAT_USE_ESCAPE = _autoconf.SOCAT_USE_ESCAPE
 280 SOCAT_USE_COMPRESS = _autoconf.SOCAT_USE_COMPRESS
 281 SOCAT_ESCAPE_CODE = "0x1d"
 282
 283 #: Console as SSH command
 284 CONS_SSH = "ssh"
 285
 286 #: Console as VNC server
 287 CONS_VNC = "vnc"
 288
 289 #: Console as SPICE server
 290 CONS_SPICE = "spice"
 291
 292 #: Display a message for console access
 293 CONS_MESSAGE = "msg"
 294
 295 #: All console types
 296 CONS_ALL = frozenset([CONS_SSH, CONS_VNC, CONS_SPICE, CONS_MESSAGE])
 297
 298 # For RSA keys more bits are better, but they also make operations more
 299 # expensive. NIST SP 800-131 recommends a minimum of 2048 bits from the year
 300 # 2010 on.
 301 RSA_KEY_BITS = 2048
 302
 303 # Ciphers allowed for SSL connections. For the format, see ciphers(1). A better
 304 # way to disable ciphers would be to use the exclamation mark (!), but socat
 305 # versions below 1.5 can't parse exclamation marks in options properly. When
 306 # modifying the ciphers, ensure not to accidentially add something after it's
 307 # been removed. Use the "openssl" utility to check the allowed ciphers, e.g.
 308 # "openssl ciphers -v HIGH:-DES".
 309 OPENSSL_CIPHERS = "HIGH:-DES:-3DES:-EXPORT:-ADH"
 310
 311 # Digest used to sign certificates ("openssl x509" uses SHA1 by default)
 312 X509_CERT_SIGN_DIGEST = "SHA1"
 313
 314 # Default validity of certificates in days
 315 X509_CERT_DEFAULT_VALIDITY = 365 * 5
 316
 317 # commonName (CN) used in certificates
 318 X509_CERT_CN = "ganeti.example.com"
 319
 320 X509_CERT_SIGNATURE_HEADER = "X-Ganeti-Signature"
 321
 322 IMPORT_EXPORT_DAEMON = _autoconf.PKGLIBDIR + "/import-export"
 323
 324 # Import/export daemon mode
 325 IEM_IMPORT = "import"
 326 IEM_EXPORT = "export"
 327
 328 # Import/export transport compression
 329 IEC_NONE = "none"
 330 IEC_GZIP = "gzip"
 331 IEC_ALL = frozenset([
 332   IEC_NONE,
 333   IEC_GZIP,
 334   ])
 335
 336 IE_CUSTOM_SIZE = "fd"
 337
 338 IE_MAGIC_RE = re.compile(r"^[-_.a-zA-Z0-9]{5,100}$")
 339
 340 # Import/export I/O
 341 # Direct file I/O, equivalent to a shell's I/O redirection using '<' or '>'
 342 IEIO_FILE = "file"
 343 # Raw block device I/O using "dd"
 344 IEIO_RAW_DISK = "raw"
 345 # OS definition import/export script
 346 IEIO_SCRIPT = "script"
 347
 348 VALUE_DEFAULT = "default"
 349 VALUE_AUTO = "auto"
 350 VALUE_GENERATE = "generate"
 351 VALUE_NONE = "none"
 352 VALUE_TRUE = "true"
 353 VALUE_FALSE = "false"
 354
 355 # External script validation mask
 356 EXT_PLUGIN_MASK = re.compile("^[a-zA-Z0-9_-]+$")
 357
 358 # hooks-related constants
 359 HOOKS_BASE_DIR = CONF_DIR + "/hooks"
 360 HOOKS_PHASE_PRE = "pre"
 361 HOOKS_PHASE_POST = "post"
 362 HOOKS_NAME_CFGUPDATE = "config-update"
 363 HOOKS_NAME_WATCHER = "watcher"
 364 HOOKS_VERSION = 2
 365 HOOKS_PATH = "/sbin:/bin:/usr/sbin:/usr/bin"
 366
 367 # hooks subject type (what object type does the LU deal with)
 368 HTYPE_CLUSTER = "CLUSTER"
 369 HTYPE_NODE = "NODE"
 370 HTYPE_GROUP = "GROUP"
 371 HTYPE_INSTANCE = "INSTANCE"
 372
 373 HKR_SKIP = 0
 374 HKR_FAIL = 1
 375 HKR_SUCCESS = 2
 376
 377 # Storage types
 378 ST_FILE = "file"
 379 ST_LVM_PV = "lvm-pv"
 380 ST_LVM_VG = "lvm-vg"
 381
 382 # Storage fields
 383 # first two are valid in LU context only, not passed to backend
 384 SF_NODE = "node"
 385 SF_TYPE = "type"
 386 # and the rest are valid in backend
 387 SF_NAME = "name"
 388 SF_SIZE = "size"
 389 SF_FREE = "free"
 390 SF_USED = "used"
 391 SF_ALLOCATABLE = "allocatable"
 392
 393 # Storage operations
 394 SO_FIX_CONSISTENCY = "fix-consistency"
 395
 396 # Available fields per storage type
 397 VALID_STORAGE_FIELDS = frozenset([
 398   SF_NAME,
 399   SF_TYPE,
 400   SF_SIZE,
 401   SF_USED,
 402   SF_FREE,
 403   SF_ALLOCATABLE
 404   ])
 405
 406 VALID_STORAGE_TYPES = frozenset([ST_FILE, ST_LVM_PV, ST_LVM_VG])
 407
 408 MODIFIABLE_STORAGE_FIELDS = {
 409   ST_LVM_PV: frozenset([SF_ALLOCATABLE]),
 410   }
 411
 412 VALID_STORAGE_OPERATIONS = {
 413   ST_LVM_VG: frozenset([SO_FIX_CONSISTENCY]),
 414   }
 415
 416 # Local disk status
 417 # Note: Code depends on LDS_OKAY < LDS_UNKNOWN < LDS_FAULTY
 418 (LDS_OKAY,
 419  LDS_UNKNOWN,
 420  LDS_FAULTY) = range(1, 4)
 421
 422 # disk template types
 423 DT_DISKLESS = "diskless"
 424 DT_PLAIN = "plain"
 425 DT_DRBD8 = "drbd"
 426 DT_FILE = "file"
 427 DT_SHARED_FILE = "sharedfile"
 428 DT_BLOCK = "blockdev"
 429 DT_RBD = "rbd"
 430
 431 # the set of network-mirrored disk templates
 432 DTS_INT_MIRROR = frozenset([DT_DRBD8])
 433
 434 # the set of externally-mirrored disk templates (e.g. SAN, NAS)
 435 DTS_EXT_MIRROR = frozenset([DT_SHARED_FILE, DT_BLOCK, DT_RBD])
 436
 437 # the set of non-lvm-based disk templates
 438 DTS_NOT_LVM = frozenset([DT_DISKLESS, DT_FILE, DT_SHARED_FILE,
 439                          DT_BLOCK, DT_RBD])
 440
 441 # the set of disk templates which can be grown
 442 DTS_GROWABLE = frozenset([DT_PLAIN, DT_DRBD8, DT_FILE, DT_SHARED_FILE, DT_RBD])
 443
 444 # the set of disk templates that allow adoption
 445 DTS_MAY_ADOPT = frozenset([DT_PLAIN, DT_BLOCK])
 446
 447 # the set of disk templates that *must* use adoption
 448 DTS_MUST_ADOPT = frozenset([DT_BLOCK])
 449
 450 # the set of disk templates that allow migrations
 451 DTS_MIRRORED = frozenset.union(DTS_INT_MIRROR, DTS_EXT_MIRROR)
 452
 453 # the set of file based disk templates
 454 DTS_FILEBASED = frozenset([DT_FILE, DT_SHARED_FILE])
 455
 456 # logical disk types
 457 LD_LV = "lvm"
 458 LD_DRBD8 = "drbd8"
 459 LD_FILE = "file"
 460 LD_BLOCKDEV = "blockdev"
 461 LD_RBD = "rbd"
 462 LOGICAL_DISK_TYPES = frozenset([
 463   LD_LV,
 464   LD_DRBD8,
 465   LD_FILE,
 466   LD_BLOCKDEV,
 467   LD_RBD,
 468   ])
 469
 470 LDS_BLOCK = frozenset([LD_LV, LD_DRBD8, LD_BLOCKDEV, LD_RBD])
 471
 472 # drbd constants
 473 DRBD_HMAC_ALG = "md5"
 474 DRBD_NET_PROTOCOL = "C"
 475
 476 # drbd barrier types
 477 DRBD_B_NONE = "n"
 478 DRBD_B_DISK_BARRIERS = "b"
 479 DRBD_B_DISK_DRAIN = "d"
 480 DRBD_B_DISK_FLUSH = "f"
 481
 482 # Valid barrier combinations: "n" or any non-null subset of "bfd"
 483 DRBD_VALID_BARRIER_OPT = frozenset([
 484   frozenset([DRBD_B_NONE]),
 485   frozenset([DRBD_B_DISK_BARRIERS]),
 486   frozenset([DRBD_B_DISK_DRAIN]),
 487   frozenset([DRBD_B_DISK_FLUSH]),
 488   frozenset([DRBD_B_DISK_DRAIN, DRBD_B_DISK_FLUSH]),
 489   frozenset([DRBD_B_DISK_DRAIN, DRBD_B_DISK_FLUSH]),
 490   frozenset([DRBD_B_DISK_BARRIERS, DRBD_B_DISK_DRAIN]),
 491   frozenset([DRBD_B_DISK_BARRIERS, DRBD_B_DISK_FLUSH]),
 492   frozenset([DRBD_B_DISK_BARRIERS, DRBD_B_DISK_FLUSH, DRBD_B_DISK_DRAIN]),
 493   ])
 494
 495 # rbd tool command
 496 RBD_CMD = "rbd"
 497
 498 # file backend driver
 499 FD_LOOP = "loop"
 500 FD_BLKTAP = "blktap"
 501
 502 # the set of drbd-like disk types
 503 LDS_DRBD = frozenset([LD_DRBD8])
 504
 505 # disk access mode
 506 DISK_RDONLY = "ro"
 507 DISK_RDWR = "rw"
 508 DISK_ACCESS_SET = frozenset([DISK_RDONLY, DISK_RDWR])
 509
 510 # disk replacement mode
 511 REPLACE_DISK_PRI = "replace_on_primary"    # replace disks on primary
 512 REPLACE_DISK_SEC = "replace_on_secondary"  # replace disks on secondary
 513 REPLACE_DISK_CHG = "replace_new_secondary" # change secondary node
 514 REPLACE_DISK_AUTO = "replace_auto"
 515 REPLACE_MODES = frozenset([
 516   REPLACE_DISK_PRI,
 517   REPLACE_DISK_SEC,
 518   REPLACE_DISK_CHG,
 519   REPLACE_DISK_AUTO,
 520   ])
 521
 522 # Instance export mode
 523 EXPORT_MODE_LOCAL = "local"
 524 EXPORT_MODE_REMOTE = "remote"
 525 EXPORT_MODES = frozenset([
 526   EXPORT_MODE_LOCAL,
 527   EXPORT_MODE_REMOTE,
 528   ])
 529
 530 # instance creation modes
 531 INSTANCE_CREATE = "create"
 532 INSTANCE_IMPORT = "import"
 533 INSTANCE_REMOTE_IMPORT = "remote-import"
 534 INSTANCE_CREATE_MODES = frozenset([
 535   INSTANCE_CREATE,
 536   INSTANCE_IMPORT,
 537   INSTANCE_REMOTE_IMPORT,
 538   ])
 539
 540 # Remote import/export handshake message and version
 541 RIE_VERSION = 0
 542 RIE_HANDSHAKE = "Hi, I'm Ganeti"
 543
 544 # Remote import/export certificate validity in seconds
 545 RIE_CERT_VALIDITY = 24 * 60 * 60
 546
 547 # Overall timeout for establishing connection
 548 RIE_CONNECT_TIMEOUT = 180
 549
 550 # Export only: how long to wait per connection attempt (seconds)
 551 RIE_CONNECT_ATTEMPT_TIMEOUT = 20
 552
 553 # Export only: number of attempts to connect
 554 RIE_CONNECT_RETRIES = 10
 555
 556 #: Give child process up to 5 seconds to exit after sending a signal
 557 CHILD_LINGER_TIMEOUT = 5.0
 558
 559 DISK_TEMPLATES = frozenset([
 560   DT_DISKLESS,
 561   DT_PLAIN,
 562   DT_DRBD8,
 563   DT_FILE,
 564   DT_SHARED_FILE,
 565   DT_BLOCK,
 566   DT_RBD
 567   ])
 568
 569 FILE_DRIVER = frozenset([FD_LOOP, FD_BLKTAP])
 570
 571 # import/export config options
 572 INISECT_EXP = "export"
 573 INISECT_INS = "instance"
 574 INISECT_HYP = "hypervisor"
 575 INISECT_BEP = "backend"
 576 INISECT_OSP = "os"
 577
 578 # dynamic device modification
 579 DDM_ADD = "add"
 580 DDM_MODIFY = "modify"
 581 DDM_REMOVE = "remove"
 582 DDMS_VALUES = frozenset([DDM_ADD, DDM_REMOVE])
 583 DDMS_VALUES_WITH_MODIFY = (DDMS_VALUES | frozenset([
 584   DDM_MODIFY,
 585   ]))
 586 # TODO: DDM_SWAP, DDM_MOVE?
 587
 588 # common exit codes
 589 EXIT_SUCCESS = 0
 590 EXIT_FAILURE = 1
 591 EXIT_NOTCLUSTER = 5
 592 EXIT_NOTMASTER = 11
 593 EXIT_NODESETUP_ERROR = 12
 594 EXIT_CONFIRMATION = 13 # need user confirmation
 595
 596 #: Exit code for query operations with unknown fields
 597 EXIT_UNKNOWN_FIELD = 14
 598
 599 # tags
 600 TAG_CLUSTER = "cluster"
 601 TAG_NODEGROUP = "nodegroup"
 602 TAG_NODE = "node"
 603 TAG_INSTANCE = "instance"
 604 VALID_TAG_TYPES = frozenset([
 605   TAG_CLUSTER,
 606   TAG_NODEGROUP,
 607   TAG_NODE,
 608   TAG_INSTANCE,
 609   ])
 610 MAX_TAG_LEN = 128
 611 MAX_TAGS_PER_OBJ = 4096
 612
 613 # others
 614 DEFAULT_BRIDGE = "xen-br0"
 615 CLASSIC_DRBD_SYNC_SPEED = 60 * 1024  # 60 MiB, expressed in KiB
 616 IP4_ADDRESS_LOCALHOST = "127.0.0.1"
 617 IP4_ADDRESS_ANY = "0.0.0.0"
 618 IP6_ADDRESS_LOCALHOST = "::1"
 619 IP6_ADDRESS_ANY = "::"
 620 IP4_VERSION = 4
 621 IP6_VERSION = 6
 622 VALID_IP_VERSIONS = frozenset([IP4_VERSION, IP6_VERSION])
 623 # for export to htools
 624 IP4_FAMILY = socket.AF_INET
 625 IP6_FAMILY = socket.AF_INET6
 626
 627 TCP_PING_TIMEOUT = 10
 628 GANETI_RUNAS = "root"
 629 DEFAULT_VG = "xenvg"
 630 DEFAULT_DRBD_HELPER = "/bin/true"
 631 MIN_VG_SIZE = 20480
 632 DEFAULT_MAC_PREFIX = "aa:00:00"
 633 # default maximum instance wait time, in seconds.
 634 DEFAULT_SHUTDOWN_TIMEOUT = 120
 635 NODE_MAX_CLOCK_SKEW = 150
 636 # Time for an intra-cluster disk transfer to wait for a connection
 637 DISK_TRANSFER_CONNECT_TIMEOUT = 60
 638 # Disk index separator
 639 DISK_SEPARATOR = _autoconf.DISK_SEPARATOR
 640 IP_COMMAND_PATH = _autoconf.IP_PATH
 641
 642 #: Key for job IDs in opcode result
 643 JOB_IDS_KEY = "jobs"
 644
 645 # runparts results
 646 (RUNPARTS_SKIP,
 647  RUNPARTS_RUN,
 648  RUNPARTS_ERR) = range(3)
 649
 650 RUNPARTS_STATUS = frozenset([RUNPARTS_SKIP, RUNPARTS_RUN, RUNPARTS_ERR])
 651
 652 # RPC constants
 653 (RPC_ENCODING_NONE,
 654  RPC_ENCODING_ZLIB_BASE64) = range(2)
 655
 656 # os related constants
 657 OS_SCRIPT_CREATE = "create"
 658 OS_SCRIPT_IMPORT = "import"
 659 OS_SCRIPT_EXPORT = "export"
 660 OS_SCRIPT_RENAME = "rename"
 661 OS_SCRIPT_VERIFY = "verify"
 662 OS_SCRIPTS = frozenset([
 663   OS_SCRIPT_CREATE,
 664   OS_SCRIPT_IMPORT,
 665   OS_SCRIPT_EXPORT,
 666   OS_SCRIPT_RENAME,
 667   OS_SCRIPT_VERIFY
 668   ])
 669
 670 OS_API_FILE = "ganeti_api_version"
 671 OS_VARIANTS_FILE = "variants.list"
 672 OS_PARAMETERS_FILE = "parameters.list"
 673
 674 OS_VALIDATE_PARAMETERS = "parameters"
 675 OS_VALIDATE_CALLS = frozenset([OS_VALIDATE_PARAMETERS])
 676
 677 # ssh constants
 678 SSH_CONFIG_DIR = _autoconf.SSH_CONFIG_DIR
 679 SSH_HOST_DSA_PRIV = SSH_CONFIG_DIR + "/ssh_host_dsa_key"
 680 SSH_HOST_DSA_PUB = SSH_HOST_DSA_PRIV + ".pub"
 681 SSH_HOST_RSA_PRIV = SSH_CONFIG_DIR + "/ssh_host_rsa_key"
 682 SSH_HOST_RSA_PUB = SSH_HOST_RSA_PRIV + ".pub"
 683 SSH = "ssh"
 684 SCP = "scp"
 685
 686 # reboot types
 687 INSTANCE_REBOOT_SOFT = "soft"
 688 INSTANCE_REBOOT_HARD = "hard"
 689 INSTANCE_REBOOT_FULL = "full"
 690
 691 REBOOT_TYPES = frozenset([
 692   INSTANCE_REBOOT_SOFT,
 693   INSTANCE_REBOOT_HARD,
 694   INSTANCE_REBOOT_FULL
 695   ])
 696
 697 # instance reboot behaviors
 698 INSTANCE_REBOOT_ALLOWED = "reboot"
 699 INSTANCE_REBOOT_EXIT = "exit"
 700
 701 REBOOT_BEHAVIORS = frozenset([
 702   INSTANCE_REBOOT_ALLOWED,
 703   INSTANCE_REBOOT_EXIT
 704   ])
 705
 706 VTYPE_STRING = "string"
 707 VTYPE_MAYBE_STRING = "maybe-string"
 708 VTYPE_BOOL = "bool"
 709 VTYPE_SIZE = "size" # size, in MiBs
 710 VTYPE_INT = "int"
 711 ENFORCEABLE_TYPES = frozenset([
 712   VTYPE_STRING,
 713   VTYPE_MAYBE_STRING,
 714   VTYPE_BOOL,
 715   VTYPE_SIZE,
 716   VTYPE_INT,
 717   ])
 718
 719 # Constant representing that the user does not specify any IP version
 720 IFACE_NO_IP_VERSION_SPECIFIED = 0
 721
 722 # HV parameter names (global namespace)
 723 HV_BOOT_ORDER = "boot_order"
 724 HV_CDROM_IMAGE_PATH = "cdrom_image_path"
 725 HV_KVM_CDROM2_IMAGE_PATH = "cdrom2_image_path"
 726 HV_KVM_FLOPPY_IMAGE_PATH = "floppy_image_path"
 727 HV_NIC_TYPE = "nic_type"
 728 HV_DISK_TYPE = "disk_type"
 729 HV_KVM_CDROM_DISK_TYPE = "cdrom_disk_type"
 730 HV_VNC_BIND_ADDRESS = "vnc_bind_address"
 731 HV_VNC_PASSWORD_FILE = "vnc_password_file"
 732 HV_VNC_TLS = "vnc_tls"
 733 HV_VNC_X509 = "vnc_x509_path"
 734 HV_VNC_X509_VERIFY = "vnc_x509_verify"
 735 HV_KVM_SPICE_BIND = "spice_bind"
 736 HV_KVM_SPICE_IP_VERSION = "spice_ip_version"
 737 HV_KVM_SPICE_PASSWORD_FILE = "spice_password_file"
 738 HV_KVM_SPICE_LOSSLESS_IMG_COMPR = "spice_image_compression"
 739 HV_KVM_SPICE_JPEG_IMG_COMPR = "spice_jpeg_wan_compression"
 740 HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR = "spice_zlib_glz_wan_compression"
 741 HV_KVM_SPICE_STREAMING_VIDEO_DETECTION = "spice_streaming_video"
 742 HV_KVM_SPICE_AUDIO_COMPR = "spice_playback_compression"
 743 HV_KVM_SPICE_USE_TLS = "spice_use_tls"
 744 HV_KVM_SPICE_TLS_CIPHERS = "spice_tls_ciphers"
 745 HV_KVM_SPICE_USE_VDAGENT = "spice_use_vdagent"
 746 HV_ACPI = "acpi"
 747 HV_PAE = "pae"
 748 HV_USE_BOOTLOADER = "use_bootloader"
 749 HV_BOOTLOADER_ARGS = "bootloader_args"
 750 HV_BOOTLOADER_PATH = "bootloader_path"
 751 HV_KERNEL_ARGS = "kernel_args"
 752 HV_KERNEL_PATH = "kernel_path"
 753 HV_INITRD_PATH = "initrd_path"
 754 HV_ROOT_PATH = "root_path"
 755 HV_SERIAL_CONSOLE = "serial_console"
 756 HV_USB_MOUSE = "usb_mouse"
 757 HV_KEYMAP = "keymap"
 758 HV_DEVICE_MODEL = "device_model"
 759 HV_INIT_SCRIPT = "init_script"
 760 HV_MIGRATION_PORT = "migration_port"
 761 HV_MIGRATION_BANDWIDTH = "migration_bandwidth"
 762 HV_MIGRATION_DOWNTIME = "migration_downtime"
 763 HV_MIGRATION_MODE = "migration_mode"
 764 HV_USE_LOCALTIME = "use_localtime"
 765 HV_DISK_CACHE = "disk_cache"
 766 HV_SECURITY_MODEL = "security_model"
 767 HV_SECURITY_DOMAIN = "security_domain"
 768 HV_KVM_FLAG = "kvm_flag"
 769 HV_VHOST_NET = "vhost_net"
 770 HV_KVM_USE_CHROOT = "use_chroot"
 771 HV_CPU_MASK = "cpu_mask"
 772 HV_MEM_PATH = "mem_path"
 773 HV_BLOCKDEV_PREFIX = "blockdev_prefix"
 774 HV_REBOOT_BEHAVIOR = "reboot_behavior"
 775
 776 HVS_PARAMETER_TYPES = {
 777   HV_BOOT_ORDER: VTYPE_STRING,
 778   HV_KVM_FLOPPY_IMAGE_PATH: VTYPE_STRING,
 779   HV_CDROM_IMAGE_PATH: VTYPE_STRING,
 780   HV_KVM_CDROM2_IMAGE_PATH: VTYPE_STRING,
 781   HV_NIC_TYPE: VTYPE_STRING,
 782   HV_DISK_TYPE: VTYPE_STRING,
 783   HV_KVM_CDROM_DISK_TYPE: VTYPE_STRING,
 784   HV_VNC_PASSWORD_FILE: VTYPE_STRING,
 785   HV_VNC_BIND_ADDRESS: VTYPE_STRING,
 786   HV_VNC_TLS: VTYPE_BOOL,
 787   HV_VNC_X509: VTYPE_STRING,
 788   HV_VNC_X509_VERIFY: VTYPE_BOOL,
 789   HV_KVM_SPICE_BIND: VTYPE_STRING,
 790   HV_KVM_SPICE_IP_VERSION: VTYPE_INT,
 791   HV_KVM_SPICE_PASSWORD_FILE: VTYPE_STRING,
 792   HV_KVM_SPICE_LOSSLESS_IMG_COMPR: VTYPE_STRING,
 793   HV_KVM_SPICE_JPEG_IMG_COMPR: VTYPE_STRING,
 794   HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR: VTYPE_STRING,
 795   HV_KVM_SPICE_STREAMING_VIDEO_DETECTION: VTYPE_STRING,
 796   HV_KVM_SPICE_AUDIO_COMPR: VTYPE_BOOL,
 797   HV_KVM_SPICE_USE_TLS: VTYPE_BOOL,
 798   HV_KVM_SPICE_TLS_CIPHERS: VTYPE_STRING,
 799   HV_KVM_SPICE_USE_VDAGENT: VTYPE_BOOL,
 800   HV_ACPI: VTYPE_BOOL,
 801   HV_PAE: VTYPE_BOOL,
 802   HV_USE_BOOTLOADER: VTYPE_BOOL,
 803   HV_BOOTLOADER_PATH: VTYPE_STRING,
 804   HV_BOOTLOADER_ARGS: VTYPE_STRING,
 805   HV_KERNEL_PATH: VTYPE_STRING,
 806   HV_KERNEL_ARGS: VTYPE_STRING,
 807   HV_INITRD_PATH: VTYPE_STRING,
 808   HV_ROOT_PATH: VTYPE_MAYBE_STRING,
 809   HV_SERIAL_CONSOLE: VTYPE_BOOL,
 810   HV_USB_MOUSE: VTYPE_STRING,
 811   HV_KEYMAP: VTYPE_STRING,
 812   HV_DEVICE_MODEL: VTYPE_STRING,
 813   HV_INIT_SCRIPT: VTYPE_STRING,
 814   HV_MIGRATION_PORT: VTYPE_INT,
 815   HV_MIGRATION_BANDWIDTH: VTYPE_INT,
 816   HV_MIGRATION_DOWNTIME: VTYPE_INT,
 817   HV_MIGRATION_MODE: VTYPE_STRING,
 818   HV_USE_LOCALTIME: VTYPE_BOOL,
 819   HV_DISK_CACHE: VTYPE_STRING,
 820   HV_SECURITY_MODEL: VTYPE_STRING,
 821   HV_SECURITY_DOMAIN: VTYPE_STRING,
 822   HV_KVM_FLAG: VTYPE_STRING,
 823   HV_VHOST_NET: VTYPE_BOOL,
 824   HV_KVM_USE_CHROOT: VTYPE_BOOL,
 825   HV_CPU_MASK: VTYPE_STRING,
 826   HV_MEM_PATH: VTYPE_STRING,
 827   HV_BLOCKDEV_PREFIX: VTYPE_STRING,
 828   HV_REBOOT_BEHAVIOR: VTYPE_STRING,
 829   }
 830
 831 HVS_PARAMETERS = frozenset(HVS_PARAMETER_TYPES.keys())
 832
 833 # Migration statuses
 834 HV_MIGRATION_COMPLETED = "completed"
 835 HV_MIGRATION_ACTIVE = "active"
 836 HV_MIGRATION_FAILED = "failed"
 837 HV_MIGRATION_CANCELLED = "cancelled"
 838
 839 HV_MIGRATION_VALID_STATUSES = frozenset([
 840   HV_MIGRATION_COMPLETED,
 841   HV_MIGRATION_ACTIVE,
 842   HV_MIGRATION_FAILED,
 843   HV_MIGRATION_CANCELLED,
 844   ])
 845
 846 HV_MIGRATION_FAILED_STATUSES = frozenset([
 847   HV_MIGRATION_FAILED,
 848   HV_MIGRATION_CANCELLED,
 849   ])
 850
 851 # KVM-specific statuses
 852 HV_KVM_MIGRATION_VALID_STATUSES = HV_MIGRATION_VALID_STATUSES
 853
 854 # Node info keys
 855 HV_NODEINFO_KEY_VERSION = "hv_version"
 856
 857 # Hypervisor state
 858 HVST_MEMORY_TOTAL = "mem_total"
 859 HVST_MEMORY_NODE = "mem_node"
 860 HVST_MEMORY_HV = "mem_hv"
 861 HVST_CPU_TOTAL = "cpu_total"
 862 HVST_CPU_NODE = "cpu_node"
 863
 864 HVST_DEFAULTS = {
 865   HVST_MEMORY_TOTAL: 0,
 866   HVST_MEMORY_NODE: 0,
 867   HVST_MEMORY_HV: 0,
 868   HVST_CPU_TOTAL: 1,
 869   HVST_CPU_NODE: 1,
 870   }
 871
 872 HVSTS_PARAMETER_TYPES = {
 873   HVST_MEMORY_TOTAL: VTYPE_INT,
 874   HVST_MEMORY_NODE: VTYPE_INT,
 875   HVST_MEMORY_HV: VTYPE_INT,
 876   HVST_CPU_TOTAL: VTYPE_INT,
 877   HVST_CPU_NODE: VTYPE_INT,
 878   }
 879
 880 HVSTS_PARAMETERS = frozenset(HVSTS_PARAMETER_TYPES.keys())
 881
 882 # Disk state
 883 DS_DISK_TOTAL = "disk_total"
 884 DS_DISK_RESERVED = "disk_reserved"
 885 DS_DISK_OVERHEAD = "disk_overhead"
 886
 887 DS_DEFAULTS = {
 888   DS_DISK_TOTAL: 0,
 889   DS_DISK_RESERVED: 0,
 890   DS_DISK_OVERHEAD: 0,
 891   }
 892
 893 DSS_PARAMETER_TYPES = {
 894   DS_DISK_TOTAL: VTYPE_INT,
 895   DS_DISK_RESERVED: VTYPE_INT,
 896   DS_DISK_OVERHEAD: VTYPE_INT,
 897   }
 898
 899 DSS_PARAMETERS = frozenset(DSS_PARAMETER_TYPES.keys())
 900 DS_VALID_TYPES = frozenset([LD_LV])
 901
 902 # Backend parameter names
 903 BE_MEMORY = "memory" # deprecated and replaced by max and min mem
 904 BE_MAXMEM = "maxmem"
 905 BE_MINMEM = "minmem"
 906 BE_VCPUS = "vcpus"
 907 BE_AUTO_BALANCE = "auto_balance"
 908 BE_ALWAYS_FAILOVER = "always_failover"
 909 BE_SPINDLE_USE = "spindle_use"
 910
 911 BES_PARAMETER_TYPES = {
 912   BE_MAXMEM: VTYPE_SIZE,
 913   BE_MINMEM: VTYPE_SIZE,
 914   BE_VCPUS: VTYPE_INT,
 915   BE_AUTO_BALANCE: VTYPE_BOOL,
 916   BE_ALWAYS_FAILOVER: VTYPE_BOOL,
 917   BE_SPINDLE_USE: VTYPE_INT,
 918   }
 919
 920 BES_PARAMETER_COMPAT = {
 921   BE_MEMORY: VTYPE_SIZE,
 922   }
 923 BES_PARAMETER_COMPAT.update(BES_PARAMETER_TYPES)
 924
 925 BES_PARAMETERS = frozenset(BES_PARAMETER_TYPES.keys())
 926
 927 # instance specs
 928 ISPEC_MEM_SIZE = "memory-size"
 929 ISPEC_CPU_COUNT = "cpu-count"
 930 ISPEC_DISK_COUNT = "disk-count"
 931 ISPEC_DISK_SIZE = "disk-size"
 932 ISPEC_NIC_COUNT = "nic-count"
 933 ISPEC_SPINDLE_USE = "spindle-use"
 934
 935 ISPECS_PARAMETER_TYPES = {
 936   ISPEC_MEM_SIZE: VTYPE_INT,
 937   ISPEC_CPU_COUNT: VTYPE_INT,
 938   ISPEC_DISK_COUNT: VTYPE_INT,
 939   ISPEC_DISK_SIZE: VTYPE_INT,
 940   ISPEC_NIC_COUNT: VTYPE_INT,
 941   ISPEC_SPINDLE_USE: VTYPE_INT,
 942   }
 943
 944 ISPECS_PARAMETERS = frozenset(ISPECS_PARAMETER_TYPES.keys())
 945
 946 ISPECS_MIN = "min"
 947 ISPECS_MAX = "max"
 948 ISPECS_STD = "std"
 949 IPOLICY_DTS = "disk-templates"
 950 IPOLICY_VCPU_RATIO = "vcpu-ratio"
 951 IPOLICY_SPINDLE_RATIO = "spindle-ratio"
 952
 953 IPOLICY_ISPECS = frozenset([
 954   ISPECS_MIN,
 955   ISPECS_MAX,
 956   ISPECS_STD,
 957   ])
 958
 959 IPOLICY_PARAMETERS = frozenset([
 960   IPOLICY_VCPU_RATIO,
 961   IPOLICY_SPINDLE_RATIO,
 962   ])
 963
 964 IPOLICY_ALL_KEYS = (IPOLICY_ISPECS |
 965                     IPOLICY_PARAMETERS |
 966                     frozenset([IPOLICY_DTS]))
 967
 968 # Node parameter names
 969 ND_OOB_PROGRAM = "oob_program"
 970 ND_SPINDLE_COUNT = "spindle_count"
 971
 972 NDS_PARAMETER_TYPES = {
 973   ND_OOB_PROGRAM: VTYPE_MAYBE_STRING,
 974   ND_SPINDLE_COUNT: VTYPE_INT,
 975   }
 976
 977 NDS_PARAMETERS = frozenset(NDS_PARAMETER_TYPES.keys())
 978
 979 # Logical Disks parameters
 980 LDP_RESYNC_RATE = "resync-rate"
 981 LDP_STRIPES = "stripes"
 982 LDP_BARRIERS = "disabled-barriers"
 983 LDP_NO_META_FLUSH = "disable-meta-flush"
 984 LDP_DEFAULT_METAVG = "default-metavg"
 985 LDP_DISK_CUSTOM = "disk-custom"
 986 LDP_NET_CUSTOM = "net-custom"
 987 LDP_DYNAMIC_RESYNC = "dynamic-resync"
 988 LDP_PLAN_AHEAD = "c-plan-ahead"
 989 LDP_FILL_TARGET = "c-fill-target"
 990 LDP_DELAY_TARGET = "c-delay-target"
 991 LDP_MAX_RATE = "c-max-rate"
 992 LDP_MIN_RATE = "c-min-rate"
 993 LDP_POOL = "pool"
 994 DISK_LD_TYPES = {
 995   LDP_RESYNC_RATE: VTYPE_INT,
 996   LDP_STRIPES: VTYPE_INT,
 997   LDP_BARRIERS: VTYPE_STRING,
 998   LDP_NO_META_FLUSH: VTYPE_BOOL,
 999   LDP_DEFAULT_METAVG: VTYPE_STRING,
1000   LDP_DISK_CUSTOM: VTYPE_STRING,
1001   LDP_NET_CUSTOM: VTYPE_STRING,
1002   LDP_DYNAMIC_RESYNC: VTYPE_BOOL,
1003   LDP_PLAN_AHEAD: VTYPE_INT,
1004   LDP_FILL_TARGET: VTYPE_INT,
1005   LDP_DELAY_TARGET: VTYPE_INT,
1006   LDP_MAX_RATE: VTYPE_INT,
1007   LDP_MIN_RATE: VTYPE_INT,
1008   LDP_POOL: VTYPE_STRING,
1009   }
1010 DISK_LD_PARAMETERS = frozenset(DISK_LD_TYPES.keys())
1011
1012 # Disk template parameters (can be set/changed by the user via gnt-cluster and
1013 # gnt-group)
1014 DRBD_RESYNC_RATE = "resync-rate"
1015 DRBD_DATA_STRIPES = "data-stripes"
1016 DRBD_META_STRIPES = "meta-stripes"
1017 DRBD_DISK_BARRIERS = "disk-barriers"
1018 DRBD_META_BARRIERS = "meta-barriers"
1019 DRBD_DEFAULT_METAVG = "metavg"
1020 DRBD_DISK_CUSTOM = "disk-custom"
1021 DRBD_NET_CUSTOM = "net-custom"
1022 DRBD_DYNAMIC_RESYNC = "dynamic-resync"
1023 DRBD_PLAN_AHEAD = "c-plan-ahead"
1024 DRBD_FILL_TARGET = "c-fill-target"
1025 DRBD_DELAY_TARGET = "c-delay-target"
1026 DRBD_MAX_RATE = "c-max-rate"
1027 DRBD_MIN_RATE = "c-min-rate"
1028 LV_STRIPES = "stripes"
1029 RBD_POOL = "pool"
1030 DISK_DT_TYPES = {
1031   DRBD_RESYNC_RATE: VTYPE_INT,
1032   DRBD_DATA_STRIPES: VTYPE_INT,
1033   DRBD_META_STRIPES: VTYPE_INT,
1034   DRBD_DISK_BARRIERS: VTYPE_STRING,
1035   DRBD_META_BARRIERS: VTYPE_BOOL,
1036   DRBD_DEFAULT_METAVG: VTYPE_STRING,
1037   DRBD_DISK_CUSTOM: VTYPE_STRING,
1038   DRBD_NET_CUSTOM: VTYPE_STRING,
1039   DRBD_DYNAMIC_RESYNC: VTYPE_BOOL,
1040   DRBD_PLAN_AHEAD: VTYPE_INT,
1041   DRBD_FILL_TARGET: VTYPE_INT,
1042   DRBD_DELAY_TARGET: VTYPE_INT,
1043   DRBD_MAX_RATE: VTYPE_INT,
1044   DRBD_MIN_RATE: VTYPE_INT,
1045   LV_STRIPES: VTYPE_INT,
1046   RBD_POOL: VTYPE_STRING,
1047   }
1048
1049 DISK_DT_PARAMETERS = frozenset(DISK_DT_TYPES.keys())
1050
1051 # OOB supported commands
1052 OOB_POWER_ON = "power-on"
1053 OOB_POWER_OFF = "power-off"
1054 OOB_POWER_CYCLE = "power-cycle"
1055 OOB_POWER_STATUS = "power-status"
1056 OOB_HEALTH = "health"
1057
1058 OOB_COMMANDS = frozenset([
1059   OOB_POWER_ON,
1060   OOB_POWER_OFF,
1061   OOB_POWER_CYCLE,
1062   OOB_POWER_STATUS,
1063   OOB_HEALTH
1064   ])
1065
1066 OOB_POWER_STATUS_POWERED = "powered"
1067
1068 OOB_TIMEOUT = 60 # 60 seconds
1069 OOB_POWER_DELAY = 2.0 # 2 seconds
1070
1071 OOB_STATUS_OK = "OK"
1072 OOB_STATUS_WARNING = "WARNING"
1073 OOB_STATUS_CRITICAL = "CRITICAL"
1074 OOB_STATUS_UNKNOWN = "UNKNOWN"
1075
1076 OOB_STATUSES = frozenset([
1077   OOB_STATUS_OK,
1078   OOB_STATUS_WARNING,
1079   OOB_STATUS_CRITICAL,
1080   OOB_STATUS_UNKNOWN,
1081   ])
1082
1083 # Instance Parameters Profile
1084 PP_DEFAULT = "default"
1085
1086 # NIC_* constants are used inside the ganeti config
1087 NIC_MODE = "mode"
1088 NIC_LINK = "link"
1089
1090 NIC_MODE_BRIDGED = "bridged"
1091 NIC_MODE_ROUTED = "routed"
1092
1093 NIC_VALID_MODES = frozenset([NIC_MODE_BRIDGED, NIC_MODE_ROUTED])
1094
1095 NICS_PARAMETER_TYPES = {
1096   NIC_MODE: VTYPE_STRING,
1097   NIC_LINK: VTYPE_STRING,
1098   }
1099
1100 NICS_PARAMETERS = frozenset(NICS_PARAMETER_TYPES.keys())
1101
1102 # IDISK_* constants are used in opcodes, to create/change disks
1103 IDISK_SIZE = "size"
1104 IDISK_MODE = "mode"
1105 IDISK_ADOPT = "adopt"
1106 IDISK_VG = "vg"
1107 IDISK_METAVG = "metavg"
1108 IDISK_PARAMS_TYPES = {
1109   IDISK_SIZE: VTYPE_SIZE,
1110   IDISK_MODE: VTYPE_STRING,
1111   IDISK_ADOPT: VTYPE_STRING,
1112   IDISK_VG: VTYPE_STRING,
1113   IDISK_METAVG: VTYPE_STRING,
1114   }
1115 IDISK_PARAMS = frozenset(IDISK_PARAMS_TYPES.keys())
1116
1117 # INIC_* constants are used in opcodes, to create/change nics
1118 INIC_MAC = "mac"
1119 INIC_IP = "ip"
1120 INIC_MODE = "mode"
1121 INIC_LINK = "link"
1122 INIC_PARAMS_TYPES = {
1123   INIC_IP: VTYPE_MAYBE_STRING,
1124   INIC_LINK: VTYPE_STRING,
1125   INIC_MAC: VTYPE_STRING,
1126   INIC_MODE: VTYPE_STRING,
1127   }
1128 INIC_PARAMS = frozenset(INIC_PARAMS_TYPES.keys())
1129
1130 # Hypervisor constants
1131 HT_XEN_PVM = "xen-pvm"
1132 HT_FAKE = "fake"
1133 HT_XEN_HVM = "xen-hvm"
1134 HT_KVM = "kvm"
1135 HT_CHROOT = "chroot"
1136 HT_LXC = "lxc"
1137 HYPER_TYPES = frozenset([
1138   HT_XEN_PVM,
1139   HT_FAKE,
1140   HT_XEN_HVM,
1141   HT_KVM,
1142   HT_CHROOT,
1143   HT_LXC,
1144   ])
1145 HTS_REQ_PORT = frozenset([HT_XEN_HVM, HT_KVM])
1146
1147 VNC_BASE_PORT = 5900
1148 VNC_PASSWORD_FILE = CONF_DIR + "/vnc-cluster-password"
1149 VNC_DEFAULT_BIND_ADDRESS = IP4_ADDRESS_ANY
1150
1151 # NIC types
1152 HT_NIC_RTL8139 = "rtl8139"
1153 HT_NIC_NE2K_PCI = "ne2k_pci"
1154 HT_NIC_NE2K_ISA = "ne2k_isa"
1155 HT_NIC_I82551 = "i82551"
1156 HT_NIC_I85557B = "i82557b"
1157 HT_NIC_I8259ER = "i82559er"
1158 HT_NIC_PCNET = "pcnet"
1159 HT_NIC_E1000 = "e1000"
1160 HT_NIC_PARAVIRTUAL = HT_DISK_PARAVIRTUAL = "paravirtual"
1161
1162 HT_HVM_VALID_NIC_TYPES = frozenset([
1163   HT_NIC_RTL8139,
1164   HT_NIC_NE2K_PCI,
1165   HT_NIC_E1000,
1166   HT_NIC_NE2K_ISA,
1167   HT_NIC_PARAVIRTUAL
1168   ])
1169 HT_KVM_VALID_NIC_TYPES = frozenset([
1170   HT_NIC_RTL8139,
1171   HT_NIC_NE2K_PCI,
1172   HT_NIC_NE2K_ISA,
1173   HT_NIC_I82551,
1174   HT_NIC_I85557B,
1175   HT_NIC_I8259ER,
1176   HT_NIC_PCNET,
1177   HT_NIC_E1000,
1178   HT_NIC_PARAVIRTUAL
1179   ])
1180
1181 # Disk types
1182 HT_DISK_IOEMU = "ioemu"
1183 HT_DISK_IDE = "ide"
1184 HT_DISK_SCSI = "scsi"
1185 HT_DISK_SD = "sd"
1186 HT_DISK_MTD = "mtd"
1187 HT_DISK_PFLASH = "pflash"
1188
1189 HT_CACHE_DEFAULT = "default"
1190 HT_CACHE_NONE = "none"
1191 HT_CACHE_WTHROUGH = "writethrough"
1192 HT_CACHE_WBACK = "writeback"
1193 HT_VALID_CACHE_TYPES = frozenset([
1194   HT_CACHE_DEFAULT,
1195   HT_CACHE_NONE,
1196   HT_CACHE_WTHROUGH,
1197   HT_CACHE_WBACK
1198   ])
1199
1200 HT_HVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IOEMU])
1201 HT_KVM_VALID_DISK_TYPES = frozenset([
1202   HT_DISK_PARAVIRTUAL,
1203   HT_DISK_IDE,
1204   HT_DISK_SCSI,
1205   HT_DISK_SD,
1206   HT_DISK_MTD,
1207   HT_DISK_PFLASH
1208   ])
1209
1210 # Mouse types:
1211 HT_MOUSE_MOUSE = "mouse"
1212 HT_MOUSE_TABLET = "tablet"
1213
1214 HT_KVM_VALID_MOUSE_TYPES = frozenset([HT_MOUSE_MOUSE, HT_MOUSE_TABLET])
1215
1216 # Boot order
1217 HT_BO_FLOPPY = "floppy"
1218 HT_BO_CDROM = "cdrom"
1219 HT_BO_DISK = "disk"
1220 HT_BO_NETWORK = "network"
1221
1222 HT_KVM_VALID_BO_TYPES = frozenset([
1223   HT_BO_FLOPPY,
1224   HT_BO_CDROM,
1225   HT_BO_DISK,
1226   HT_BO_NETWORK
1227   ])
1228
1229 # SPICE lossless image compression options
1230 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_GLZ = "auto_glz"
1231 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_LZ = "auto_lz"
1232 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_QUIC = "quic"
1233 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_GLZ = "glz"
1234 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_LZ = "lz"
1235 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_OFF = "off"
1236
1237 HT_KVM_SPICE_VALID_LOSSLESS_IMG_COMPR_OPTIONS = frozenset([
1238   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_GLZ,
1239   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_LZ,
1240   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_QUIC,
1241   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_GLZ,
1242   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_LZ,
1243   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_OFF,
1244   ])
1245
1246 # SPICE lossy image compression options (valid for both jpeg and zlib-glz)
1247 HT_KVM_SPICE_LOSSY_IMG_COMPR_AUTO = "auto"
1248 HT_KVM_SPICE_LOSSY_IMG_COMPR_NEVER = "never"
1249 HT_KVM_SPICE_LOSSY_IMG_COMPR_ALWAYS = "always"
1250
1251 HT_KVM_SPICE_VALID_LOSSY_IMG_COMPR_OPTIONS = frozenset([
1252   HT_KVM_SPICE_LOSSY_IMG_COMPR_AUTO,
1253   HT_KVM_SPICE_LOSSY_IMG_COMPR_NEVER,
1254   HT_KVM_SPICE_LOSSY_IMG_COMPR_ALWAYS,
1255   ])
1256
1257 # SPICE video stream detection
1258 HT_KVM_SPICE_VIDEO_STREAM_DETECTION_OFF = "off"
1259 HT_KVM_SPICE_VIDEO_STREAM_DETECTION_ALL = "all"
1260 HT_KVM_SPICE_VIDEO_STREAM_DETECTION_FILTER = "filter"
1261
1262 HT_KVM_SPICE_VALID_VIDEO_STREAM_DETECTION_OPTIONS = frozenset([
1263   HT_KVM_SPICE_VIDEO_STREAM_DETECTION_OFF,
1264   HT_KVM_SPICE_VIDEO_STREAM_DETECTION_ALL,
1265   HT_KVM_SPICE_VIDEO_STREAM_DETECTION_FILTER,
1266   ])
1267
1268 # Security models
1269 HT_SM_NONE = "none"
1270 HT_SM_USER = "user"
1271 HT_SM_POOL = "pool"
1272
1273 HT_KVM_VALID_SM_TYPES = frozenset([HT_SM_NONE, HT_SM_USER, HT_SM_POOL])
1274
1275 # Kvm flag values
1276 HT_KVM_ENABLED = "enabled"
1277 HT_KVM_DISABLED = "disabled"
1278
1279 HT_KVM_FLAG_VALUES = frozenset([HT_KVM_ENABLED, HT_KVM_DISABLED])
1280
1281 # Migration type
1282 HT_MIGRATION_LIVE = "live"
1283 HT_MIGRATION_NONLIVE = "non-live"
1284 HT_MIGRATION_MODES = frozenset([HT_MIGRATION_LIVE, HT_MIGRATION_NONLIVE])
1285
1286 # Cluster Verify steps
1287 VERIFY_NPLUSONE_MEM = "nplusone_mem"
1288 VERIFY_OPTIONAL_CHECKS = frozenset([VERIFY_NPLUSONE_MEM])
1289
1290 # Cluster Verify error classes
1291 CV_TCLUSTER = "cluster"
1292 CV_TNODE = "node"
1293 CV_TINSTANCE = "instance"
1294
1295 # Cluster Verify error codes and documentation
1296 CV_ECLUSTERCFG = \
1297   (CV_TCLUSTER, "ECLUSTERCFG", "Cluster configuration verification failure")
1298 CV_ECLUSTERCERT = \
1299   (CV_TCLUSTER, "ECLUSTERCERT",
1300    "Cluster certificate files verification failure")
1301 CV_ECLUSTERFILECHECK = \
1302   (CV_TCLUSTER, "ECLUSTERFILECHECK",
1303    "Cluster configuration verification failure")
1304 CV_ECLUSTERDANGLINGNODES = \
1305   (CV_TNODE, "ECLUSTERDANGLINGNODES",
1306    "Some nodes belong to non-existing groups")
1307 CV_ECLUSTERDANGLINGINST = \
1308   (CV_TNODE, "ECLUSTERDANGLINGINST",
1309    "Some instances have a non-existing primary node")
1310 CV_EINSTANCEBADNODE = \
1311   (CV_TINSTANCE, "EINSTANCEBADNODE",
1312    "Instance marked as running lives on an offline node")
1313 CV_EINSTANCEDOWN = \
1314   (CV_TINSTANCE, "EINSTANCEDOWN", "Instance not running on its primary node")
1315 CV_EINSTANCELAYOUT = \
1316   (CV_TINSTANCE, "EINSTANCELAYOUT", "Instance has multiple secondary nodes")
1317 CV_EINSTANCEMISSINGDISK = \
1318   (CV_TINSTANCE, "EINSTANCEMISSINGDISK", "Missing volume on an instance")
1319 CV_EINSTANCEFAULTYDISK = \
1320   (CV_TINSTANCE, "EINSTANCEFAULTYDISK",
1321    "Impossible to retrieve status for a disk")
1322 CV_EINSTANCEWRONGNODE = \
1323   (CV_TINSTANCE, "EINSTANCEWRONGNODE", "Instance running on the wrong node")
1324 CV_EINSTANCESPLITGROUPS = \
1325   (CV_TINSTANCE, "EINSTANCESPLITGROUPS",
1326    "Instance with primary and secondary nodes in different groups")
1327 CV_EINSTANCEPOLICY = \
1328   (CV_TINSTANCE, "EINSTANCEPOLICY",
1329    "Instance does not meet policy")
1330 CV_ENODEDRBD = \
1331   (CV_TNODE, "ENODEDRBD", "Error parsing the DRBD status file")
1332 CV_ENODEDRBDHELPER = \
1333   (CV_TNODE, "ENODEDRBDHELPER", "Error caused by the DRBD helper")
1334 CV_ENODEFILECHECK = \
1335   (CV_TNODE, "ENODEFILECHECK",
1336    "Error retrieving the checksum of the node files")
1337 CV_ENODEHOOKS = \
1338   (CV_TNODE, "ENODEHOOKS", "Communication failure in hooks execution")
1339 CV_ENODEHV = \
1340   (CV_TNODE, "ENODEHV", "Hypervisor parameters verification failure")
1341 CV_ENODELVM = \
1342   (CV_TNODE, "ENODELVM", "LVM-related node error")
1343 CV_ENODEN1 = \
1344   (CV_TNODE, "ENODEN1", "Not enough memory to accommodate instance failovers")
1345 CV_ENODENET = \
1346   (CV_TNODE, "ENODENET", "Network-related node error")
1347 CV_ENODEOS = \
1348   (CV_TNODE, "ENODEOS", "OS-related node error")
1349 CV_ENODEORPHANINSTANCE = \
1350   (CV_TNODE, "ENODEORPHANINSTANCE", "Unknown intance running on a node")
1351 CV_ENODEORPHANLV = \
1352   (CV_TNODE, "ENODEORPHANLV", "Unknown LVM logical volume")
1353 CV_ENODERPC = \
1354   (CV_TNODE, "ENODERPC",
1355    "Error during connection to the primary node of an instance")
1356 CV_ENODESSH = \
1357   (CV_TNODE, "ENODESSH", "SSH-related node error")
1358 CV_ENODEVERSION = \
1359   (CV_TNODE, "ENODEVERSION",
1360    "Protocol version mismatch or Ganeti version mismatch")
1361 CV_ENODESETUP = \
1362   (CV_TNODE, "ENODESETUP", "Node setup error")
1363 CV_ENODETIME = \
1364   (CV_TNODE, "ENODETIME", "Node returned invalid time")
1365 CV_ENODEOOBPATH = \
1366   (CV_TNODE, "ENODEOOBPATH", "Invalid Out Of Band path")
1367 CV_ENODEUSERSCRIPTS = \
1368   (CV_TNODE, "ENODEUSERSCRIPTS", "User scripts not present or not executable")
1369
1370 CV_ALL_ECODES = frozenset([
1371   CV_ECLUSTERCFG,
1372   CV_ECLUSTERCERT,
1373   CV_ECLUSTERFILECHECK,
1374   CV_ECLUSTERDANGLINGNODES,
1375   CV_ECLUSTERDANGLINGINST,
1376   CV_EINSTANCEBADNODE,
1377   CV_EINSTANCEDOWN,
1378   CV_EINSTANCELAYOUT,
1379   CV_EINSTANCEMISSINGDISK,
1380   CV_EINSTANCEFAULTYDISK,
1381   CV_EINSTANCEWRONGNODE,
1382   CV_EINSTANCESPLITGROUPS,
1383   CV_EINSTANCEPOLICY,
1384   CV_ENODEDRBD,
1385   CV_ENODEDRBDHELPER,
1386   CV_ENODEFILECHECK,
1387   CV_ENODEHOOKS,
1388   CV_ENODEHV,
1389   CV_ENODELVM,
1390   CV_ENODEN1,
1391   CV_ENODENET,
1392   CV_ENODEOS,
1393   CV_ENODEORPHANINSTANCE,
1394   CV_ENODEORPHANLV,
1395   CV_ENODERPC,
1396   CV_ENODESSH,
1397   CV_ENODEVERSION,
1398   CV_ENODESETUP,
1399   CV_ENODETIME,
1400   CV_ENODEOOBPATH,
1401   CV_ENODEUSERSCRIPTS,
1402   ])
1403
1404 CV_ALL_ECODES_STRINGS = frozenset(estr for (_, estr, _) in CV_ALL_ECODES)
1405
1406 # Node verify constants
1407 NV_DRBDHELPER = "drbd-helper"
1408 NV_DRBDLIST = "drbd-list"
1409 NV_FILELIST = "filelist"
1410 NV_HVINFO = "hvinfo"
1411 NV_HYPERVISOR = "hypervisor"
1412 NV_HVPARAMS = "hvparms"
1413 NV_INSTANCELIST = "instancelist"
1414 NV_LVLIST = "lvlist"
1415 NV_MASTERIP = "master-ip"
1416 NV_NODELIST = "nodelist"
1417 NV_NODENETTEST = "node-net-test"
1418 NV_NODESETUP = "nodesetup"
1419 NV_OSLIST = "oslist"
1420 NV_PVLIST = "pvlist"
1421 NV_TIME = "time"
1422 NV_VERSION = "version"
1423 NV_VGLIST = "vglist"
1424 NV_VMNODES = "vmnodes"
1425 NV_OOB_PATHS = "oob-paths"
1426 NV_BRIDGES = "bridges"
1427 NV_USERSCRIPTS = "user-scripts"
1428
1429 # Instance status
1430 INSTST_RUNNING = "running"
1431 INSTST_ADMINDOWN = "ADMIN_down"
1432 INSTST_ADMINOFFLINE = "ADMIN_offline"
1433 INSTST_NODEOFFLINE = "ERROR_nodeoffline"
1434 INSTST_NODEDOWN = "ERROR_nodedown"
1435 INSTST_WRONGNODE = "ERROR_wrongnode"
1436 INSTST_ERRORUP = "ERROR_up"
1437 INSTST_ERRORDOWN = "ERROR_down"
1438 INSTST_ALL = frozenset([
1439   INSTST_RUNNING,
1440   INSTST_ADMINDOWN,
1441   INSTST_ADMINOFFLINE,
1442   INSTST_NODEOFFLINE,
1443   INSTST_NODEDOWN,
1444   INSTST_WRONGNODE,
1445   INSTST_ERRORUP,
1446   INSTST_ERRORDOWN,
1447   ])
1448
1449 # Admin states
1450 ADMINST_UP = "up"
1451 ADMINST_DOWN = "down"
1452 ADMINST_OFFLINE = "offline"
1453 ADMINST_ALL = frozenset([
1454   ADMINST_UP,
1455   ADMINST_DOWN,
1456   ADMINST_OFFLINE,
1457   ])
1458
1459 # Node roles
1460 NR_REGULAR = "R"
1461 NR_MASTER = "M"
1462 NR_MCANDIDATE = "C"
1463 NR_DRAINED = "D"
1464 NR_OFFLINE = "O"
1465 NR_ALL = frozenset([
1466   NR_REGULAR,
1467   NR_MASTER,
1468   NR_MCANDIDATE,
1469   NR_DRAINED,
1470   NR_OFFLINE,
1471   ])
1472
1473 # SSL certificate check constants (in days)
1474 SSL_CERT_EXPIRATION_WARN = 30
1475 SSL_CERT_EXPIRATION_ERROR = 7
1476
1477 # Allocator framework constants
1478 IALLOCATOR_VERSION = 2
1479 IALLOCATOR_DIR_IN = "in"
1480 IALLOCATOR_DIR_OUT = "out"
1481 VALID_IALLOCATOR_DIRECTIONS = frozenset([
1482   IALLOCATOR_DIR_IN,
1483   IALLOCATOR_DIR_OUT,
1484   ])
1485 IALLOCATOR_MODE_ALLOC = "allocate"
1486 IALLOCATOR_MODE_RELOC = "relocate"
1487 IALLOCATOR_MODE_CHG_GROUP = "change-group"
1488 IALLOCATOR_MODE_NODE_EVAC = "node-evacuate"
1489 VALID_IALLOCATOR_MODES = frozenset([
1490   IALLOCATOR_MODE_ALLOC,
1491   IALLOCATOR_MODE_RELOC,
1492   IALLOCATOR_MODE_CHG_GROUP,
1493   IALLOCATOR_MODE_NODE_EVAC,
1494   ])
1495 IALLOCATOR_SEARCH_PATH = _autoconf.IALLOCATOR_SEARCH_PATH
1496
1497 IALLOCATOR_NEVAC_PRI = "primary-only"
1498 IALLOCATOR_NEVAC_SEC = "secondary-only"
1499 IALLOCATOR_NEVAC_ALL = "all"
1500 IALLOCATOR_NEVAC_MODES = frozenset([
1501   IALLOCATOR_NEVAC_PRI,
1502   IALLOCATOR_NEVAC_SEC,
1503   IALLOCATOR_NEVAC_ALL,
1504   ])
1505
1506 # Node evacuation
1507 NODE_EVAC_PRI = "primary-only"
1508 NODE_EVAC_SEC = "secondary-only"
1509 NODE_EVAC_ALL = "all"
1510 NODE_EVAC_MODES = frozenset([
1511   NODE_EVAC_PRI,
1512   NODE_EVAC_SEC,
1513   NODE_EVAC_ALL,
1514   ])
1515
1516 # Job queue
1517 JOB_QUEUE_VERSION = 1
1518 JOB_QUEUE_LOCK_FILE = QUEUE_DIR + "/lock"
1519 JOB_QUEUE_VERSION_FILE = QUEUE_DIR + "/version"
1520 JOB_QUEUE_SERIAL_FILE = QUEUE_DIR + "/serial"
1521 JOB_QUEUE_ARCHIVE_DIR = QUEUE_DIR + "/archive"
1522 JOB_QUEUE_DRAIN_FILE = QUEUE_DIR + "/drain"
1523 JOB_QUEUE_SIZE_HARD_LIMIT = 5000
1524
1525 JOB_ID_TEMPLATE = r"\d+"
1526 JOB_FILE_RE = re.compile(r"^job-(%s)$" % JOB_ID_TEMPLATE)
1527
1528 # unchanged job return
1529 JOB_NOTCHANGED = "nochange"
1530
1531 # Job status
1532 JOB_STATUS_QUEUED = "queued"
1533 JOB_STATUS_WAITING = "waiting"
1534 JOB_STATUS_CANCELING = "canceling"
1535 JOB_STATUS_RUNNING = "running"
1536 JOB_STATUS_CANCELED = "canceled"
1537 JOB_STATUS_SUCCESS = "success"
1538 JOB_STATUS_ERROR = "error"
1539 JOBS_FINALIZED = frozenset([
1540   JOB_STATUS_CANCELED,
1541   JOB_STATUS_SUCCESS,
1542   JOB_STATUS_ERROR,
1543   ])
1544 JOB_STATUS_ALL = frozenset([
1545   JOB_STATUS_QUEUED,
1546   JOB_STATUS_WAITING,
1547   JOB_STATUS_CANCELING,
1548   JOB_STATUS_RUNNING,
1549   ]) | JOBS_FINALIZED
1550
1551 # OpCode status
1552 # not yet finalized
1553 OP_STATUS_QUEUED = "queued"
1554 OP_STATUS_WAITING = "waiting"
1555 OP_STATUS_CANCELING = "canceling"
1556 OP_STATUS_RUNNING = "running"
1557 # finalized
1558 OP_STATUS_CANCELED = "canceled"
1559 OP_STATUS_SUCCESS = "success"
1560 OP_STATUS_ERROR = "error"
1561 OPS_FINALIZED = frozenset([
1562   OP_STATUS_CANCELED,
1563   OP_STATUS_SUCCESS,
1564   OP_STATUS_ERROR
1565   ])
1566
1567 # OpCode priority
1568 OP_PRIO_LOWEST = +19
1569 OP_PRIO_HIGHEST = -20
1570
1571 OP_PRIO_LOW = +10
1572 OP_PRIO_NORMAL = 0
1573 OP_PRIO_HIGH = -10
1574
1575 OP_PRIO_SUBMIT_VALID = frozenset([
1576   OP_PRIO_LOW,
1577   OP_PRIO_NORMAL,
1578   OP_PRIO_HIGH,
1579   ])
1580
1581 OP_PRIO_DEFAULT = OP_PRIO_NORMAL
1582
1583 # Lock recalculate mode
1584 LOCKS_REPLACE = "replace"
1585 LOCKS_APPEND = "append"
1586
1587 # Lock timeout (sum) before we should go into blocking acquire (still
1588 # can be reset by priority change); computed as max time (10 hours)
1589 # before we should actually go into blocking acquire given that we
1590 # start from default priority level; in seconds
1591 # TODO
1592 LOCK_ATTEMPTS_TIMEOUT = 10 * 3600 / (OP_PRIO_DEFAULT - OP_PRIO_HIGHEST)
1593 LOCK_ATTEMPTS_MAXWAIT = 15.0
1594 LOCK_ATTEMPTS_MINWAIT = 1.0
1595
1596 # Execution log types
1597 ELOG_MESSAGE = "message"
1598 ELOG_REMOTE_IMPORT = "remote-import"
1599 ELOG_JQUEUE_TEST = "jqueue-test"
1600
1601 # /etc/hosts modification
1602 ETC_HOSTS_ADD = "add"
1603 ETC_HOSTS_REMOVE = "remove"
1604
1605 # Job queue test
1606 JQT_MSGPREFIX = "TESTMSG="
1607 JQT_EXPANDNAMES = "expandnames"
1608 JQT_EXEC = "exec"
1609 JQT_LOGMSG = "logmsg"
1610 JQT_STARTMSG = "startmsg"
1611 JQT_ALL = frozenset([
1612   JQT_EXPANDNAMES,
1613   JQT_EXEC,
1614   JQT_LOGMSG,
1615   JQT_STARTMSG,
1616   ])
1617
1618 # Query resources
1619 QR_CLUSTER = "cluster"
1620 QR_INSTANCE = "instance"
1621 QR_NODE = "node"
1622 QR_LOCK = "lock"
1623 QR_GROUP = "group"
1624 QR_OS = "os"
1625 QR_JOB = "job"
1626 QR_EXPORT = "export"
1627
1628 #: List of resources which can be queried using L{opcodes.OpQuery}
1629 QR_VIA_OP = frozenset([
1630   QR_CLUSTER,
1631   QR_INSTANCE,
1632   QR_NODE,
1633   QR_GROUP,
1634   QR_OS,
1635   QR_EXPORT,
1636   ])
1637
1638 #: List of resources which can be queried using Local UniX Interface
1639 QR_VIA_LUXI = QR_VIA_OP.union([
1640   QR_LOCK,
1641   QR_JOB,
1642   ])
1643
1644 #: List of resources which can be queried using RAPI
1645 QR_VIA_RAPI = QR_VIA_LUXI
1646
1647 # Query field types
1648 QFT_UNKNOWN = "unknown"
1649 QFT_TEXT = "text"
1650 QFT_BOOL = "bool"
1651 QFT_NUMBER = "number"
1652 QFT_UNIT = "unit"
1653 QFT_TIMESTAMP = "timestamp"
1654 QFT_OTHER = "other"
1655
1656 #: All query field types
1657 QFT_ALL = frozenset([
1658   QFT_UNKNOWN,
1659   QFT_TEXT,
1660   QFT_BOOL,
1661   QFT_NUMBER,
1662   QFT_UNIT,
1663   QFT_TIMESTAMP,
1664   QFT_OTHER,
1665   ])
1666
1667 # Query result field status (don't change or reuse values as they're used by
1668 # clients)
1669 #: Normal field status
1670 RS_NORMAL = 0
1671 #: Unknown field
1672 RS_UNKNOWN = 1
1673 #: No data (e.g. RPC error), can be used instead of L{RS_OFFLINE}
1674 RS_NODATA = 2
1675 #: Value unavailable/unsupported for item; if this field is supported
1676 #: but we cannot get the data for the moment, RS_NODATA or
1677 #: RS_OFFLINE should be used
1678 RS_UNAVAIL = 3
1679 #: Resource marked offline
1680 RS_OFFLINE = 4
1681
1682 RS_ALL = frozenset([
1683   RS_NORMAL,
1684   RS_UNKNOWN,
1685   RS_NODATA,
1686   RS_UNAVAIL,
1687   RS_OFFLINE,
1688   ])
1689
1690 #: Dictionary with special field cases and their verbose/terse formatting
1691 RSS_DESCRIPTION = {
1692   RS_UNKNOWN: ("(unknown)", "??"),
1693   RS_NODATA: ("(nodata)", "?"),
1694   RS_OFFLINE: ("(offline)", "*"),
1695   RS_UNAVAIL: ("(unavail)", "-"),
1696   }
1697
1698 # max dynamic devices
1699 MAX_NICS = 8
1700 MAX_DISKS = 16
1701
1702 # SSCONF file prefix
1703 SSCONF_FILEPREFIX = "ssconf_"
1704 # SSCONF keys
1705 SS_CLUSTER_NAME = "cluster_name"
1706 SS_CLUSTER_TAGS = "cluster_tags"
1707 SS_FILE_STORAGE_DIR = "file_storage_dir"
1708 SS_SHARED_FILE_STORAGE_DIR = "shared_file_storage_dir"
1709 SS_MASTER_CANDIDATES = "master_candidates"
1710 SS_MASTER_CANDIDATES_IPS = "master_candidates_ips"
1711 SS_MASTER_IP = "master_ip"
1712 SS_MASTER_NETDEV = "master_netdev"
1713 SS_MASTER_NETMASK = "master_netmask"
1714 SS_MASTER_NODE = "master_node"
1715 SS_NODE_LIST = "node_list"
1716 SS_NODE_PRIMARY_IPS = "node_primary_ips"
1717 SS_NODE_SECONDARY_IPS = "node_secondary_ips"
1718 SS_OFFLINE_NODES = "offline_nodes"
1719 SS_ONLINE_NODES = "online_nodes"
1720 SS_PRIMARY_IP_FAMILY = "primary_ip_family"
1721 SS_INSTANCE_LIST = "instance_list"
1722 SS_RELEASE_VERSION = "release_version"
1723 SS_HYPERVISOR_LIST = "hypervisor_list"
1724 SS_MAINTAIN_NODE_HEALTH = "maintain_node_health"
1725 SS_UID_POOL = "uid_pool"
1726 SS_NODEGROUPS = "nodegroups"
1727
1728 SS_FILE_PERMS = 0444
1729
1730 # cluster wide default parameters
1731 DEFAULT_ENABLED_HYPERVISOR = HT_XEN_PVM
1732
1733 HVC_DEFAULTS = {
1734   HT_XEN_PVM: {
1735     HV_USE_BOOTLOADER: False,
1736     HV_BOOTLOADER_PATH: XEN_BOOTLOADER,
1737     HV_BOOTLOADER_ARGS: "",
1738     HV_KERNEL_PATH: XEN_KERNEL,
1739     HV_INITRD_PATH: "",
1740     HV_ROOT_PATH: "/dev/sda1",
1741     HV_KERNEL_ARGS: "ro",
1742     HV_MIGRATION_PORT: 8002,
1743     HV_MIGRATION_MODE: HT_MIGRATION_LIVE,
1744     HV_BLOCKDEV_PREFIX: "sd",
1745     HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
1746     HV_CPU_MASK: CPU_PINNING_ALL,
1747     },
1748   HT_XEN_HVM: {
1749     HV_BOOT_ORDER: "cd",
1750     HV_CDROM_IMAGE_PATH: "",
1751     HV_NIC_TYPE: HT_NIC_RTL8139,
1752     HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
1753     HV_VNC_BIND_ADDRESS: IP4_ADDRESS_ANY,
1754     HV_VNC_PASSWORD_FILE: VNC_PASSWORD_FILE,
1755     HV_ACPI: True,
1756     HV_PAE: True,
1757     HV_KERNEL_PATH: "/usr/lib/xen/boot/hvmloader",
1758     HV_DEVICE_MODEL: "/usr/lib/xen/bin/qemu-dm",
1759     HV_MIGRATION_PORT: 8002,
1760     HV_MIGRATION_MODE: HT_MIGRATION_NONLIVE,
1761     HV_USE_LOCALTIME: False,
1762     HV_BLOCKDEV_PREFIX: "hd",
1763     HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
1764     HV_CPU_MASK: CPU_PINNING_ALL,
1765     },
1766   HT_KVM: {
1767     HV_KERNEL_PATH: KVM_KERNEL,
1768     HV_INITRD_PATH: "",
1769     HV_KERNEL_ARGS: "ro",
1770     HV_ROOT_PATH: "/dev/vda1",
1771     HV_ACPI: True,
1772     HV_SERIAL_CONSOLE: True,
1773     HV_VNC_BIND_ADDRESS: "",
1774     HV_VNC_TLS: False,
1775     HV_VNC_X509: "",
1776     HV_VNC_X509_VERIFY: False,
1777     HV_VNC_PASSWORD_FILE: "",
1778     HV_KVM_SPICE_BIND: "",
1779     HV_KVM_SPICE_IP_VERSION: IFACE_NO_IP_VERSION_SPECIFIED,
1780     HV_KVM_SPICE_PASSWORD_FILE: "",
1781     HV_KVM_SPICE_LOSSLESS_IMG_COMPR: "",
1782     HV_KVM_SPICE_JPEG_IMG_COMPR: "",
1783     HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR: "",
1784     HV_KVM_SPICE_STREAMING_VIDEO_DETECTION: "",
1785     HV_KVM_SPICE_AUDIO_COMPR: True,
1786     HV_KVM_SPICE_USE_TLS: False,
1787     HV_KVM_SPICE_TLS_CIPHERS: OPENSSL_CIPHERS,
1788     HV_KVM_SPICE_USE_VDAGENT: True,
1789     HV_KVM_FLOPPY_IMAGE_PATH: "",
1790     HV_CDROM_IMAGE_PATH: "",
1791     HV_KVM_CDROM2_IMAGE_PATH: "",
1792     HV_BOOT_ORDER: HT_BO_DISK,
1793     HV_NIC_TYPE: HT_NIC_PARAVIRTUAL,
1794     HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
1795     HV_KVM_CDROM_DISK_TYPE: "",
1796     HV_USB_MOUSE: "",
1797     HV_KEYMAP: "",
1798     HV_MIGRATION_PORT: 8102,
1799     HV_MIGRATION_BANDWIDTH: 32, # MiB/s
1800     HV_MIGRATION_DOWNTIME: 30,  # ms
1801     HV_MIGRATION_MODE: HT_MIGRATION_LIVE,
1802     HV_USE_LOCALTIME: False,
1803     HV_DISK_CACHE: HT_CACHE_DEFAULT,
1804     HV_SECURITY_MODEL: HT_SM_NONE,
1805     HV_SECURITY_DOMAIN: "",
1806     HV_KVM_FLAG: "",
1807     HV_VHOST_NET: False,
1808     HV_KVM_USE_CHROOT: False,
1809     HV_MEM_PATH: "",
1810     HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
1811     HV_CPU_MASK: CPU_PINNING_ALL,
1812     },
1813   HT_FAKE: {
1814     },
1815   HT_CHROOT: {
1816     HV_INIT_SCRIPT: "/ganeti-chroot",
1817     },
1818   HT_LXC: {
1819     HV_CPU_MASK: "",
1820     },
1821   }
1822
1823 HVC_GLOBALS = frozenset([
1824   HV_MIGRATION_PORT,
1825   HV_MIGRATION_BANDWIDTH,
1826   HV_MIGRATION_MODE,
1827   ])
1828
1829 BEC_DEFAULTS = {
1830   BE_MINMEM: 128,
1831   BE_MAXMEM: 128,
1832   BE_VCPUS: 1,
1833   BE_AUTO_BALANCE: True,
1834   BE_ALWAYS_FAILOVER: False,
1835   BE_SPINDLE_USE: 1,
1836   }
1837
1838 NDC_DEFAULTS = {
1839   ND_OOB_PROGRAM: None,
1840   ND_SPINDLE_COUNT: 1,
1841   }
1842
1843 DISK_LD_DEFAULTS = {
1844   LD_DRBD8: {
1845     LDP_RESYNC_RATE: CLASSIC_DRBD_SYNC_SPEED,
1846     LDP_BARRIERS: _autoconf.DRBD_BARRIERS,
1847     LDP_NO_META_FLUSH: _autoconf.DRBD_NO_META_FLUSH,
1848     LDP_DEFAULT_METAVG: DEFAULT_VG,
1849     LDP_DISK_CUSTOM: "",
1850     LDP_NET_CUSTOM: "",
1851     LDP_DYNAMIC_RESYNC: False,
1852
1853     # The default values for the DRBD dynamic resync speed algorithm are taken
1854     # from the drbsetup 8.3.11 man page, except for c-plan-ahead (that we
1855     # don't need to set to 0, because we have a separate option to enable it)
1856     # and for c-max-rate, that we cap to the default value for the static resync
1857     # rate.
1858     LDP_PLAN_AHEAD: 20, # ds
1859     LDP_FILL_TARGET: 0, # sectors
1860     LDP_DELAY_TARGET: 1, # ds
1861     LDP_MAX_RATE: CLASSIC_DRBD_SYNC_SPEED, # KiB/s
1862     LDP_MIN_RATE: 4 * 1024, # KiB/s
1863     },
1864   LD_LV: {
1865     LDP_STRIPES: _autoconf.LVM_STRIPECOUNT
1866     },
1867   LD_FILE: {
1868     },
1869   LD_BLOCKDEV: {
1870     },
1871   LD_RBD: {
1872     LDP_POOL: "rbd"
1873     },
1874   }
1875
1876 # readability shortcuts
1877 _LV_DEFAULTS = DISK_LD_DEFAULTS[LD_LV]
1878 _DRBD_DEFAULTS = DISK_LD_DEFAULTS[LD_DRBD8]
1879
1880 DISK_DT_DEFAULTS = {
1881   DT_PLAIN: {
1882     LV_STRIPES: DISK_LD_DEFAULTS[LD_LV][LDP_STRIPES],
1883     },
1884   DT_DRBD8: {
1885     DRBD_RESYNC_RATE: _DRBD_DEFAULTS[LDP_RESYNC_RATE],
1886     DRBD_DATA_STRIPES: _LV_DEFAULTS[LDP_STRIPES],
1887     DRBD_META_STRIPES: _LV_DEFAULTS[LDP_STRIPES],
1888     DRBD_DISK_BARRIERS: _DRBD_DEFAULTS[LDP_BARRIERS],
1889     DRBD_META_BARRIERS: _DRBD_DEFAULTS[LDP_NO_META_FLUSH],
1890     DRBD_DEFAULT_METAVG: _DRBD_DEFAULTS[LDP_DEFAULT_METAVG],
1891     DRBD_DISK_CUSTOM: _DRBD_DEFAULTS[LDP_DISK_CUSTOM],
1892     DRBD_NET_CUSTOM: _DRBD_DEFAULTS[LDP_NET_CUSTOM],
1893     DRBD_DYNAMIC_RESYNC: _DRBD_DEFAULTS[LDP_DYNAMIC_RESYNC],
1894     DRBD_PLAN_AHEAD: _DRBD_DEFAULTS[LDP_PLAN_AHEAD],
1895     DRBD_FILL_TARGET: _DRBD_DEFAULTS[LDP_FILL_TARGET],
1896     DRBD_DELAY_TARGET: _DRBD_DEFAULTS[LDP_DELAY_TARGET],
1897     DRBD_MAX_RATE: _DRBD_DEFAULTS[LDP_MAX_RATE],
1898     DRBD_MIN_RATE: _DRBD_DEFAULTS[LDP_MIN_RATE],
1899     },
1900   DT_DISKLESS: {
1901     },
1902   DT_FILE: {
1903     },
1904   DT_SHARED_FILE: {
1905     },
1906   DT_BLOCK: {
1907     },
1908   DT_RBD: {
1909     RBD_POOL: DISK_LD_DEFAULTS[LD_RBD][LDP_POOL]
1910     },
1911   }
1912
1913 # we don't want to export the shortcuts
1914 del _LV_DEFAULTS, _DRBD_DEFAULTS
1915
1916 NICC_DEFAULTS = {
1917   NIC_MODE: NIC_MODE_BRIDGED,
1918   NIC_LINK: DEFAULT_BRIDGE,
1919   }
1920
1921 # All of the following values are quite arbitrarily - there are no
1922 # "good" defaults, these must be customised per-site
1923 IPOLICY_DEFAULTS = {
1924   ISPECS_MIN: {
1925     ISPEC_MEM_SIZE: 128,
1926     ISPEC_CPU_COUNT: 1,
1927     ISPEC_DISK_COUNT: 1,
1928     ISPEC_DISK_SIZE: 1024,
1929     ISPEC_NIC_COUNT: 1,
1930     ISPEC_SPINDLE_USE: 1,
1931     },
1932   ISPECS_MAX: {
1933     ISPEC_MEM_SIZE: 32768,
1934     ISPEC_CPU_COUNT: 8,
1935     ISPEC_DISK_COUNT: MAX_DISKS,
1936     ISPEC_DISK_SIZE: 1024 * 1024,
1937     ISPEC_NIC_COUNT: MAX_NICS,
1938     ISPEC_SPINDLE_USE: 12,
1939     },
1940   ISPECS_STD: {
1941     ISPEC_MEM_SIZE: 128,
1942     ISPEC_CPU_COUNT: 1,
1943     ISPEC_DISK_COUNT: 1,
1944     ISPEC_DISK_SIZE: 1024,
1945     ISPEC_NIC_COUNT: 1,
1946     ISPEC_SPINDLE_USE: 1,
1947     },
1948   IPOLICY_DTS: DISK_TEMPLATES,
1949   IPOLICY_VCPU_RATIO: 4.0,
1950   IPOLICY_SPINDLE_RATIO: 32.0,
1951   }
1952
1953 MASTER_POOL_SIZE_DEFAULT = 10
1954
1955 CONFD_PROTOCOL_VERSION = 1
1956
1957 CONFD_REQ_PING = 0
1958 CONFD_REQ_NODE_ROLE_BYNAME = 1
1959 CONFD_REQ_NODE_PIP_BY_INSTANCE_IP = 2
1960 CONFD_REQ_CLUSTER_MASTER = 3
1961 CONFD_REQ_NODE_PIP_LIST = 4
1962 CONFD_REQ_MC_PIP_LIST = 5
1963 CONFD_REQ_INSTANCES_IPS_LIST = 6
1964 CONFD_REQ_NODE_DRBD = 7
1965
1966 # Confd request query fields. These are used to narrow down queries.
1967 # These must be strings rather than integers, because json-encoding
1968 # converts them to strings anyway, as they're used as dict-keys.
1969 CONFD_REQQ_LINK = "0"
1970 CONFD_REQQ_IP = "1"
1971 CONFD_REQQ_IPLIST = "2"
1972 CONFD_REQQ_FIELDS = "3"
1973
1974 CONFD_REQFIELD_NAME = "0"
1975 CONFD_REQFIELD_IP = "1"
1976 CONFD_REQFIELD_MNODE_PIP = "2"
1977
1978 CONFD_REQS = frozenset([
1979   CONFD_REQ_PING,
1980   CONFD_REQ_NODE_ROLE_BYNAME,
1981   CONFD_REQ_NODE_PIP_BY_INSTANCE_IP,
1982   CONFD_REQ_CLUSTER_MASTER,
1983   CONFD_REQ_NODE_PIP_LIST,
1984   CONFD_REQ_MC_PIP_LIST,
1985   CONFD_REQ_INSTANCES_IPS_LIST,
1986   CONFD_REQ_NODE_DRBD,
1987   ])
1988
1989 CONFD_REPL_STATUS_OK = 0
1990 CONFD_REPL_STATUS_ERROR = 1
1991 CONFD_REPL_STATUS_NOTIMPLEMENTED = 2
1992
1993 CONFD_REPL_STATUSES = frozenset([
1994   CONFD_REPL_STATUS_OK,
1995   CONFD_REPL_STATUS_ERROR,
1996   CONFD_REPL_STATUS_NOTIMPLEMENTED,
1997   ])
1998
1999 (CONFD_NODE_ROLE_MASTER,
2000  CONFD_NODE_ROLE_CANDIDATE,
2001  CONFD_NODE_ROLE_OFFLINE,
2002  CONFD_NODE_ROLE_DRAINED,
2003  CONFD_NODE_ROLE_REGULAR,
2004  ) = range(5)
2005
2006 # A few common errors for confd
2007 CONFD_ERROR_UNKNOWN_ENTRY = 1
2008 CONFD_ERROR_INTERNAL = 2
2009 CONFD_ERROR_ARGUMENT = 3
2010
2011 # Each request is "salted" by the current timestamp.
2012 # This constants decides how many seconds of skew to accept.
2013 # TODO: make this a default and allow the value to be more configurable
2014 CONFD_MAX_CLOCK_SKEW = 2 * NODE_MAX_CLOCK_SKEW
2015
2016 # When we haven't reloaded the config for more than this amount of seconds, we
2017 # force a test to see if inotify is betraying us.
2018 CONFD_CONFIG_RELOAD_TIMEOUT = 60
2019
2020 # If we receive more than one update in this amount of seconds, we move to
2021 # polling every RATELIMIT seconds, rather than relying on inotify, to be able
2022 # to serve more requests.
2023 CONFD_CONFIG_RELOAD_RATELIMIT = 2
2024
2025 # Magic number prepended to all confd queries.
2026 # This allows us to distinguish different types of confd protocols and handle
2027 # them. For example by changing this we can move the whole payload to be
2028 # compressed, or move away from json.
2029 CONFD_MAGIC_FOURCC = "plj0"
2030
2031 # By default a confd request is sent to the minimum between this number and all
2032 # MCs. 6 was chosen because even in the case of a disastrous 50% response rate,
2033 # we should have enough answers to be able to compare more than one.
2034 CONFD_DEFAULT_REQ_COVERAGE = 6
2035
2036 # Timeout in seconds to expire pending query request in the confd client
2037 # library. We don't actually expect any answer more than 10 seconds after we
2038 # sent a request.
2039 CONFD_CLIENT_EXPIRE_TIMEOUT = 10
2040
2041 # Maximum UDP datagram size.
2042 # On IPv4: 64K - 20 (ip header size) - 8 (udp header size) = 65507
2043 # On IPv6: 64K - 40 (ip6 header size) - 8 (udp header size) = 65487
2044 #   (assuming we can't use jumbo frames)
2045 # We just set this to 60K, which should be enough
2046 MAX_UDP_DATA_SIZE = 61440
2047
2048 # User-id pool minimum/maximum acceptable user-ids.
2049 UIDPOOL_UID_MIN = 0
2050 UIDPOOL_UID_MAX = 2 ** 32 - 1 # Assuming 32 bit user-ids
2051
2052 # Name or path of the pgrep command
2053 PGREP = "pgrep"
2054
2055 # Name of the node group that gets created at cluster init or upgrade
2056 INITIAL_NODE_GROUP_NAME = "default"
2057
2058 # Possible values for NodeGroup.alloc_policy
2059 ALLOC_POLICY_PREFERRED = "preferred"
2060 ALLOC_POLICY_LAST_RESORT = "last_resort"
2061 ALLOC_POLICY_UNALLOCABLE = "unallocable"
2062 VALID_ALLOC_POLICIES = [
2063   ALLOC_POLICY_PREFERRED,
2064   ALLOC_POLICY_LAST_RESORT,
2065   ALLOC_POLICY_UNALLOCABLE,
2066   ]
2067
2068 # Temporary external/shared storage parameters
2069 BLOCKDEV_DRIVER_MANUAL = "manual"
2070
2071 # qemu-img path, required for ovfconverter
2072 QEMUIMG_PATH = _autoconf.QEMUIMG_PATH
2073
2074 # Whether htools was enabled at compilation time
2075 HTOOLS = _autoconf.HTOOLS
2076 # The hail iallocator
2077 IALLOC_HAIL = "hail"
2078
2079 # Fake opcodes for functions that have hooks attached to them via
2080 # backend.RunLocalHooks
2081 FAKE_OP_MASTER_TURNUP = "OP_CLUSTER_IP_TURNUP"
2082 FAKE_OP_MASTER_TURNDOWN = "OP_CLUSTER_IP_TURNDOWN"
2083
2084 # Do not re-export imported modules
2085 del re, _vcsversion, _autoconf, socket