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 from ganeti import pathutils
  30
  31
  32 # various versions
  33 RELEASE_VERSION = _autoconf.PACKAGE_VERSION
  34 OS_API_V10 = 10
  35 OS_API_V15 = 15
  36 OS_API_V20 = 20
  37 OS_API_VERSIONS = frozenset([OS_API_V10, OS_API_V15, OS_API_V20])
  38 VCS_VERSION = _vcsversion.VCS_VERSION
  39 EXPORT_VERSION = 0
  40 RAPI_VERSION = 2
  41
  42
  43 # Format for CONFIG_VERSION:
  44 #   01 03 0123 = 01030123
  45 #   ^^ ^^ ^^^^
  46 #   |  |  + Configuration version/revision
  47 #   |  + Minor version
  48 #   + Major version
  49 #
  50 # It is stored as an integer. Make sure not to write an octal number.
  51
  52 # BuildVersion and SplitVersion must be in here because we can't import other
  53 # modules. The cfgupgrade tool must be able to read and write version numbers
  54 # and thus requires these functions. To avoid code duplication, they're kept in
  55 # here.
  56
  57 def BuildVersion(major, minor, revision):
  58   """Calculates int version number from major, minor and revision numbers.
  59
  60   Returns: int representing version number
  61
  62   """
  63   assert isinstance(major, int)
  64   assert isinstance(minor, int)
  65   assert isinstance(revision, int)
  66   return (1000000 * major +
  67             10000 * minor +
  68                 1 * revision)
  69
  70
  71 def SplitVersion(version):
  72   """Splits version number stored in an int.
  73
  74   Returns: tuple; (major, minor, revision)
  75
  76   """
  77   assert isinstance(version, int)
  78
  79   (major, remainder) = divmod(version, 1000000)
  80   (minor, revision) = divmod(remainder, 10000)
  81
  82   return (major, minor, revision)
  83
  84
  85 CONFIG_MAJOR = int(_autoconf.VERSION_MAJOR)
  86 CONFIG_MINOR = int(_autoconf.VERSION_MINOR)
  87 CONFIG_REVISION = 0
  88 CONFIG_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, CONFIG_REVISION)
  89
  90 #: RPC protocol version
  91 PROTOCOL_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, 0)
  92
  93 # user separation
  94 DAEMONS_GROUP = _autoconf.DAEMONS_GROUP
  95 ADMIN_GROUP = _autoconf.ADMIN_GROUP
  96 MASTERD_USER = _autoconf.MASTERD_USER
  97 MASTERD_GROUP = _autoconf.MASTERD_GROUP
  98 RAPI_USER = _autoconf.RAPI_USER
  99 RAPI_GROUP = _autoconf.RAPI_GROUP
 100 CONFD_USER = _autoconf.CONFD_USER
 101 CONFD_GROUP = _autoconf.CONFD_GROUP
 102 NODED_USER = _autoconf.NODED_USER
 103 NODED_GROUP = _autoconf.NODED_GROUP
 104 SSH_LOGIN_USER = _autoconf.SSH_LOGIN_USER
 105 SSH_CONSOLE_USER = _autoconf.SSH_CONSOLE_USER
 106
 107 # cpu pinning separators and constants
 108 CPU_PINNING_SEP = ":"
 109 CPU_PINNING_ALL = "all"
 110 # internal representation of "all"
 111 CPU_PINNING_ALL_VAL = -1
 112 # one "all" entry in a CPU list means CPU pinning is off
 113 CPU_PINNING_OFF = [CPU_PINNING_ALL_VAL]
 114
 115 # A Xen-specific implementation detail - there is no way to actually say
 116 # "use any cpu for pinning" in a Xen configuration file, as opposed to the
 117 # command line, where you can say "xm vcpu-pin <domain> <vcpu> all".
 118 # The workaround used in Xen is "0-63" (see source code function
 119 # xm_vcpu_pin in <xen-source>/tools/python/xen/xm/main.py).
 120 # To support future changes, the following constant is treated as a
 121 # blackbox string that simply means use-any-cpu-for-pinning-under-xen.
 122 CPU_PINNING_ALL_XEN = "0-63"
 123
 124 # A KVM-specific implementation detail - the following value is used
 125 # to set CPU affinity to all processors (#0 through #31), per taskset
 126 # man page.
 127 # FIXME: This only works for machines with up to 32 CPU cores
 128 CPU_PINNING_ALL_KVM = 0xFFFFFFFF
 129
 130 # Wipe
 131 DD_CMD = "dd"
 132 MAX_WIPE_CHUNK = 1024 # 1GB
 133 MIN_WIPE_CHUNK_PERCENT = 10
 134
 135 RUN_DIRS_MODE = 0775
 136 SECURE_DIR_MODE = 0700
 137 SECURE_FILE_MODE = 0600
 138 ADOPTABLE_BLOCKDEV_ROOT = "/dev/disk/"
 139 ENABLE_FILE_STORAGE = _autoconf.ENABLE_FILE_STORAGE
 140 ENABLE_SHARED_FILE_STORAGE = _autoconf.ENABLE_SHARED_FILE_STORAGE
 141 ENABLE_CONFD = _autoconf.ENABLE_CONFD
 142 ENABLE_SPLIT_QUERY = _autoconf.ENABLE_SPLIT_QUERY
 143 ENABLE_REMOTE_COMMANDS = _autoconf.ENABLE_REMOTE_COMMANDS
 144
 145 NODED = "ganeti-noded"
 146 CONFD = "ganeti-confd"
 147 RAPI = "ganeti-rapi"
 148 MASTERD = "ganeti-masterd"
 149 # used in the ganeti-nbma project
 150 NLD = "ganeti-nld"
 151
 152 DAEMONS_PORTS = {
 153   # daemon-name: ("proto", "default-port")
 154   NODED: ("tcp", 1811),
 155   CONFD: ("udp", 1814),
 156   RAPI: ("tcp", 5080),
 157   "ssh": ("tcp", 22),
 158   # used in the ganeti-nbma project
 159   NLD: ("udp", 1816),
 160 }
 161 DEFAULT_NODED_PORT = DAEMONS_PORTS[NODED][1]
 162 DEFAULT_CONFD_PORT = DAEMONS_PORTS[CONFD][1]
 163 DEFAULT_RAPI_PORT = DAEMONS_PORTS[RAPI][1]
 164 # used in the ganeti-nbma project
 165 DEFAULT_NLD_PORT = DAEMONS_PORTS[NLD][1]
 166
 167 FIRST_DRBD_PORT = 11000
 168 LAST_DRBD_PORT = 14999
 169
 170 DAEMONS_LOGFILES = {
 171   NODED: pathutils.GetLogFilename("node-daemon"),
 172   CONFD: pathutils.GetLogFilename("conf-daemon"),
 173   RAPI: pathutils.GetLogFilename("rapi-daemon"),
 174   MASTERD: pathutils.GetLogFilename("master-daemon"),
 175   }
 176
 177 DEV_CONSOLE = "/dev/console"
 178
 179 PROC_MOUNTS = "/proc/mounts"
 180
 181 # Local UniX Interface related constants
 182 LUXI_EOM = "\3"
 183 LUXI_VERSION = CONFIG_VERSION
 184
 185 # one of "no", "yes", "only"
 186 SYSLOG_USAGE = _autoconf.SYSLOG_USAGE
 187 SYSLOG_NO = "no"
 188 SYSLOG_YES = "yes"
 189 SYSLOG_ONLY = "only"
 190 SYSLOG_SOCKET = "/dev/log"
 191
 192 EXPORT_CONF_FILE = "config.ini"
 193
 194 XEN_BOOTLOADER = _autoconf.XEN_BOOTLOADER
 195 XEN_KERNEL = _autoconf.XEN_KERNEL
 196 XEN_INITRD = _autoconf.XEN_INITRD
 197 XEN_CMD_XM = "xm"
 198 XEN_CMD_XL = "xl"
 199 # FIXME: This will be made configurable using hvparams in Ganeti 2.7
 200 XEN_CMD = _autoconf.XEN_CMD
 201 # When the Xen toolstack used is "xl", live migration requires the source host
 202 # to connect to the target host via ssh (xl runs this command). We need to pass
 203 # the command xl runs some extra info so that it can use Ganeti's key
 204 # verification and not fail. Note that this string is incomplete: it must be
 205 # filled with the cluster name before being used.
 206 XL_SSH_CMD = ("ssh -l %s -oGlobalKnownHostsFile=%s"
 207               " -oUserKnownHostsFile=/dev/null"
 208               " -oCheckHostIp=no -oStrictHostKeyChecking=yes"
 209               " -oHostKeyAlias=%%s") % (SSH_LOGIN_USER,
 210                                         pathutils.SSH_KNOWN_HOSTS_FILE)
 211
 212 KVM_PATH = _autoconf.KVM_PATH
 213 KVM_KERNEL = _autoconf.KVM_KERNEL
 214 SOCAT_PATH = _autoconf.SOCAT_PATH
 215 SOCAT_USE_ESCAPE = _autoconf.SOCAT_USE_ESCAPE
 216 SOCAT_USE_COMPRESS = _autoconf.SOCAT_USE_COMPRESS
 217 SOCAT_ESCAPE_CODE = "0x1d"
 218
 219 #: Console as SSH command
 220 CONS_SSH = "ssh"
 221
 222 #: Console as VNC server
 223 CONS_VNC = "vnc"
 224
 225 #: Console as SPICE server
 226 CONS_SPICE = "spice"
 227
 228 #: Display a message for console access
 229 CONS_MESSAGE = "msg"
 230
 231 #: All console types
 232 CONS_ALL = frozenset([CONS_SSH, CONS_VNC, CONS_SPICE, CONS_MESSAGE])
 233
 234 # For RSA keys more bits are better, but they also make operations more
 235 # expensive. NIST SP 800-131 recommends a minimum of 2048 bits from the year
 236 # 2010 on.
 237 RSA_KEY_BITS = 2048
 238
 239 # Ciphers allowed for SSL connections. For the format, see ciphers(1). A better
 240 # way to disable ciphers would be to use the exclamation mark (!), but socat
 241 # versions below 1.5 can't parse exclamation marks in options properly. When
 242 # modifying the ciphers, ensure not to accidentially add something after it's
 243 # been removed. Use the "openssl" utility to check the allowed ciphers, e.g.
 244 # "openssl ciphers -v HIGH:-DES".
 245 OPENSSL_CIPHERS = "HIGH:-DES:-3DES:-EXPORT:-ADH"
 246
 247 # Digest used to sign certificates ("openssl x509" uses SHA1 by default)
 248 X509_CERT_SIGN_DIGEST = "SHA1"
 249
 250 # Default validity of certificates in days
 251 X509_CERT_DEFAULT_VALIDITY = 365 * 5
 252
 253 # commonName (CN) used in certificates
 254 X509_CERT_CN = "ganeti.example.com"
 255
 256 X509_CERT_SIGNATURE_HEADER = "X-Ganeti-Signature"
 257
 258 # Import/export daemon mode
 259 IEM_IMPORT = "import"
 260 IEM_EXPORT = "export"
 261
 262 # Import/export transport compression
 263 IEC_NONE = "none"
 264 IEC_GZIP = "gzip"
 265 IEC_ALL = frozenset([
 266   IEC_NONE,
 267   IEC_GZIP,
 268   ])
 269
 270 IE_CUSTOM_SIZE = "fd"
 271
 272 IE_MAGIC_RE = re.compile(r"^[-_.a-zA-Z0-9]{5,100}$")
 273
 274 # Import/export I/O
 275 # Direct file I/O, equivalent to a shell's I/O redirection using '<' or '>'
 276 IEIO_FILE = "file"
 277 # Raw block device I/O using "dd"
 278 IEIO_RAW_DISK = "raw"
 279 # OS definition import/export script
 280 IEIO_SCRIPT = "script"
 281
 282 VALUE_DEFAULT = "default"
 283 VALUE_AUTO = "auto"
 284 VALUE_GENERATE = "generate"
 285 VALUE_NONE = "none"
 286 VALUE_TRUE = "true"
 287 VALUE_FALSE = "false"
 288
 289 # External script validation mask
 290 EXT_PLUGIN_MASK = re.compile("^[a-zA-Z0-9_-]+$")
 291
 292 # hooks-related constants
 293 HOOKS_PHASE_PRE = "pre"
 294 HOOKS_PHASE_POST = "post"
 295 HOOKS_NAME_CFGUPDATE = "config-update"
 296 HOOKS_NAME_WATCHER = "watcher"
 297 HOOKS_VERSION = 2
 298 HOOKS_PATH = "/sbin:/bin:/usr/sbin:/usr/bin"
 299
 300 # hooks subject type (what object type does the LU deal with)
 301 HTYPE_CLUSTER = "CLUSTER"
 302 HTYPE_NODE = "NODE"
 303 HTYPE_GROUP = "GROUP"
 304 HTYPE_INSTANCE = "INSTANCE"
 305 HTYPE_NETWORK = "NETWORK"
 306
 307 HKR_SKIP = 0
 308 HKR_FAIL = 1
 309 HKR_SUCCESS = 2
 310
 311 # Storage types
 312 ST_FILE = "file"
 313 ST_LVM_PV = "lvm-pv"
 314 ST_LVM_VG = "lvm-vg"
 315
 316 # Storage fields
 317 # first two are valid in LU context only, not passed to backend
 318 SF_NODE = "node"
 319 SF_TYPE = "type"
 320 # and the rest are valid in backend
 321 SF_NAME = "name"
 322 SF_SIZE = "size"
 323 SF_FREE = "free"
 324 SF_USED = "used"
 325 SF_ALLOCATABLE = "allocatable"
 326
 327 # Storage operations
 328 SO_FIX_CONSISTENCY = "fix-consistency"
 329
 330 # Available fields per storage type
 331 VALID_STORAGE_FIELDS = frozenset([
 332   SF_NAME,
 333   SF_TYPE,
 334   SF_SIZE,
 335   SF_USED,
 336   SF_FREE,
 337   SF_ALLOCATABLE,
 338   ])
 339
 340 VALID_STORAGE_TYPES = frozenset([ST_FILE, ST_LVM_PV, ST_LVM_VG])
 341
 342 MODIFIABLE_STORAGE_FIELDS = {
 343   ST_LVM_PV: frozenset([SF_ALLOCATABLE]),
 344   }
 345
 346 VALID_STORAGE_OPERATIONS = {
 347   ST_LVM_VG: frozenset([SO_FIX_CONSISTENCY]),
 348   }
 349
 350 # Local disk status
 351 # Note: Code depends on LDS_OKAY < LDS_UNKNOWN < LDS_FAULTY
 352 (LDS_OKAY,
 353  LDS_UNKNOWN,
 354  LDS_FAULTY) = range(1, 4)
 355
 356 # disk template types
 357 DT_DISKLESS = "diskless"
 358 DT_PLAIN = "plain"
 359 DT_DRBD8 = "drbd"
 360 DT_FILE = "file"
 361 DT_SHARED_FILE = "sharedfile"
 362 DT_BLOCK = "blockdev"
 363 DT_RBD = "rbd"
 364
 365 # the set of network-mirrored disk templates
 366 DTS_INT_MIRROR = frozenset([DT_DRBD8])
 367
 368 # the set of externally-mirrored disk templates (e.g. SAN, NAS)
 369 DTS_EXT_MIRROR = frozenset([DT_SHARED_FILE, DT_BLOCK, DT_RBD])
 370
 371 # the set of non-lvm-based disk templates
 372 DTS_NOT_LVM = frozenset([DT_DISKLESS, DT_FILE, DT_SHARED_FILE,
 373                          DT_BLOCK, DT_RBD])
 374
 375 # the set of disk templates which can be grown
 376 DTS_GROWABLE = frozenset([DT_PLAIN, DT_DRBD8, DT_FILE, DT_SHARED_FILE, DT_RBD])
 377
 378 # the set of disk templates that allow adoption
 379 DTS_MAY_ADOPT = frozenset([DT_PLAIN, DT_BLOCK])
 380
 381 # the set of disk templates that *must* use adoption
 382 DTS_MUST_ADOPT = frozenset([DT_BLOCK])
 383
 384 # the set of disk templates that allow migrations
 385 DTS_MIRRORED = frozenset.union(DTS_INT_MIRROR, DTS_EXT_MIRROR)
 386
 387 # the set of file based disk templates
 388 DTS_FILEBASED = frozenset([DT_FILE, DT_SHARED_FILE])
 389
 390 # logical disk types
 391 LD_LV = "lvm"
 392 LD_DRBD8 = "drbd8"
 393 LD_FILE = "file"
 394 LD_BLOCKDEV = "blockdev"
 395 LD_RBD = "rbd"
 396 LOGICAL_DISK_TYPES = frozenset([
 397   LD_LV,
 398   LD_DRBD8,
 399   LD_FILE,
 400   LD_BLOCKDEV,
 401   LD_RBD,
 402   ])
 403
 404 LDS_BLOCK = frozenset([LD_LV, LD_DRBD8, LD_BLOCKDEV, LD_RBD])
 405
 406 # drbd constants
 407 DRBD_HMAC_ALG = "md5"
 408 DRBD_NET_PROTOCOL = "C"
 409
 410 #: Size of DRBD meta block device
 411 DRBD_META_SIZE = 128
 412
 413 # drbd barrier types
 414 DRBD_B_NONE = "n"
 415 DRBD_B_DISK_BARRIERS = "b"
 416 DRBD_B_DISK_DRAIN = "d"
 417 DRBD_B_DISK_FLUSH = "f"
 418
 419 # Valid barrier combinations: "n" or any non-null subset of "bfd"
 420 DRBD_VALID_BARRIER_OPT = frozenset([
 421   frozenset([DRBD_B_NONE]),
 422   frozenset([DRBD_B_DISK_BARRIERS]),
 423   frozenset([DRBD_B_DISK_DRAIN]),
 424   frozenset([DRBD_B_DISK_FLUSH]),
 425   frozenset([DRBD_B_DISK_DRAIN, DRBD_B_DISK_FLUSH]),
 426   frozenset([DRBD_B_DISK_DRAIN, DRBD_B_DISK_FLUSH]),
 427   frozenset([DRBD_B_DISK_BARRIERS, DRBD_B_DISK_DRAIN]),
 428   frozenset([DRBD_B_DISK_BARRIERS, DRBD_B_DISK_FLUSH]),
 429   frozenset([DRBD_B_DISK_BARRIERS, DRBD_B_DISK_FLUSH, DRBD_B_DISK_DRAIN]),
 430   ])
 431
 432 # rbd tool command
 433 RBD_CMD = "rbd"
 434
 435 # file backend driver
 436 FD_LOOP = "loop"
 437 FD_BLKTAP = "blktap"
 438
 439 # the set of drbd-like disk types
 440 LDS_DRBD = frozenset([LD_DRBD8])
 441
 442 # disk access mode
 443 DISK_RDONLY = "ro"
 444 DISK_RDWR = "rw"
 445 DISK_ACCESS_SET = frozenset([DISK_RDONLY, DISK_RDWR])
 446
 447 # disk replacement mode
 448 REPLACE_DISK_PRI = "replace_on_primary"    # replace disks on primary
 449 REPLACE_DISK_SEC = "replace_on_secondary"  # replace disks on secondary
 450 REPLACE_DISK_CHG = "replace_new_secondary" # change secondary node
 451 REPLACE_DISK_AUTO = "replace_auto"
 452 REPLACE_MODES = frozenset([
 453   REPLACE_DISK_PRI,
 454   REPLACE_DISK_SEC,
 455   REPLACE_DISK_CHG,
 456   REPLACE_DISK_AUTO,
 457   ])
 458
 459 # Instance export mode
 460 EXPORT_MODE_LOCAL = "local"
 461 EXPORT_MODE_REMOTE = "remote"
 462 EXPORT_MODES = frozenset([
 463   EXPORT_MODE_LOCAL,
 464   EXPORT_MODE_REMOTE,
 465   ])
 466
 467 # instance creation modes
 468 INSTANCE_CREATE = "create"
 469 INSTANCE_IMPORT = "import"
 470 INSTANCE_REMOTE_IMPORT = "remote-import"
 471 INSTANCE_CREATE_MODES = frozenset([
 472   INSTANCE_CREATE,
 473   INSTANCE_IMPORT,
 474   INSTANCE_REMOTE_IMPORT,
 475   ])
 476
 477 # Remote import/export handshake message and version
 478 RIE_VERSION = 0
 479 RIE_HANDSHAKE = "Hi, I'm Ganeti"
 480
 481 # Remote import/export certificate validity in seconds
 482 RIE_CERT_VALIDITY = 24 * 60 * 60
 483
 484 # Overall timeout for establishing connection
 485 RIE_CONNECT_TIMEOUT = 180
 486
 487 # Export only: how long to wait per connection attempt (seconds)
 488 RIE_CONNECT_ATTEMPT_TIMEOUT = 20
 489
 490 # Export only: number of attempts to connect
 491 RIE_CONNECT_RETRIES = 10
 492
 493 #: Give child process up to 5 seconds to exit after sending a signal
 494 CHILD_LINGER_TIMEOUT = 5.0
 495
 496 DISK_TEMPLATES = frozenset([
 497   DT_DISKLESS,
 498   DT_PLAIN,
 499   DT_DRBD8,
 500   DT_FILE,
 501   DT_SHARED_FILE,
 502   DT_BLOCK,
 503   DT_RBD,
 504   ])
 505
 506 FILE_DRIVER = frozenset([FD_LOOP, FD_BLKTAP])
 507
 508 # import/export config options
 509 INISECT_EXP = "export"
 510 INISECT_INS = "instance"
 511 INISECT_HYP = "hypervisor"
 512 INISECT_BEP = "backend"
 513 INISECT_OSP = "os"
 514
 515 # dynamic device modification
 516 DDM_ADD = "add"
 517 DDM_MODIFY = "modify"
 518 DDM_REMOVE = "remove"
 519 DDMS_VALUES = frozenset([DDM_ADD, DDM_REMOVE])
 520 DDMS_VALUES_WITH_MODIFY = (DDMS_VALUES | frozenset([
 521   DDM_MODIFY,
 522   ]))
 523 # TODO: DDM_SWAP, DDM_MOVE?
 524
 525 # common exit codes
 526 EXIT_SUCCESS = 0
 527 EXIT_FAILURE = 1
 528 EXIT_NOTCLUSTER = 5
 529 EXIT_NOTMASTER = 11
 530 EXIT_NODESETUP_ERROR = 12
 531 EXIT_CONFIRMATION = 13 # need user confirmation
 532
 533 #: Exit code for query operations with unknown fields
 534 EXIT_UNKNOWN_FIELD = 14
 535
 536 # tags
 537 TAG_CLUSTER = "cluster"
 538 TAG_NODEGROUP = "nodegroup"
 539 TAG_NODE = "node"
 540 TAG_INSTANCE = "instance"
 541 TAG_NETWORK = "network"
 542 VALID_TAG_TYPES = frozenset([
 543   TAG_CLUSTER,
 544   TAG_NODEGROUP,
 545   TAG_NODE,
 546   TAG_INSTANCE,
 547   TAG_NETWORK,
 548   ])
 549 MAX_TAG_LEN = 128
 550 MAX_TAGS_PER_OBJ = 4096
 551
 552 # others
 553 DEFAULT_BRIDGE = "xen-br0"
 554 CLASSIC_DRBD_SYNC_SPEED = 60 * 1024  # 60 MiB, expressed in KiB
 555 IP4_ADDRESS_LOCALHOST = "127.0.0.1"
 556 IP4_ADDRESS_ANY = "0.0.0.0"
 557 IP6_ADDRESS_LOCALHOST = "::1"
 558 IP6_ADDRESS_ANY = "::"
 559 IP4_VERSION = 4
 560 IP6_VERSION = 6
 561 VALID_IP_VERSIONS = frozenset([IP4_VERSION, IP6_VERSION])
 562 # for export to htools
 563 IP4_FAMILY = socket.AF_INET
 564 IP6_FAMILY = socket.AF_INET6
 565
 566 TCP_PING_TIMEOUT = 10
 567 DEFAULT_VG = "xenvg"
 568 DEFAULT_DRBD_HELPER = "/bin/true"
 569 MIN_VG_SIZE = 20480
 570 DEFAULT_MAC_PREFIX = "aa:00:00"
 571 # default maximum instance wait time, in seconds.
 572 DEFAULT_SHUTDOWN_TIMEOUT = 120
 573 NODE_MAX_CLOCK_SKEW = 150
 574 # Time for an intra-cluster disk transfer to wait for a connection
 575 DISK_TRANSFER_CONNECT_TIMEOUT = 60
 576 # Disk index separator
 577 DISK_SEPARATOR = _autoconf.DISK_SEPARATOR
 578 IP_COMMAND_PATH = _autoconf.IP_PATH
 579
 580 #: Key for job IDs in opcode result
 581 JOB_IDS_KEY = "jobs"
 582
 583 # runparts results
 584 (RUNPARTS_SKIP,
 585  RUNPARTS_RUN,
 586  RUNPARTS_ERR) = range(3)
 587
 588 RUNPARTS_STATUS = frozenset([RUNPARTS_SKIP, RUNPARTS_RUN, RUNPARTS_ERR])
 589
 590 # RPC constants
 591 (RPC_ENCODING_NONE,
 592  RPC_ENCODING_ZLIB_BASE64) = range(2)
 593
 594 # Various time constants for the timeout table
 595 RPC_TMO_URGENT = 60 # one minute
 596 RPC_TMO_FAST = 5 * 60 # five minutes
 597 RPC_TMO_NORMAL = 15 * 60 # 15 minutes
 598 RPC_TMO_SLOW = 3600 # one hour
 599 RPC_TMO_4HRS = 4 * 3600
 600 RPC_TMO_1DAY = 86400
 601
 602 # Timeout for connecting to nodes (seconds)
 603 RPC_CONNECT_TIMEOUT = 5
 604
 605 # os related constants
 606 OS_SCRIPT_CREATE = "create"
 607 OS_SCRIPT_IMPORT = "import"
 608 OS_SCRIPT_EXPORT = "export"
 609 OS_SCRIPT_RENAME = "rename"
 610 OS_SCRIPT_VERIFY = "verify"
 611 OS_SCRIPTS = frozenset([
 612   OS_SCRIPT_CREATE,
 613   OS_SCRIPT_IMPORT,
 614   OS_SCRIPT_EXPORT,
 615   OS_SCRIPT_RENAME,
 616   OS_SCRIPT_VERIFY,
 617   ])
 618
 619 OS_API_FILE = "ganeti_api_version"
 620 OS_VARIANTS_FILE = "variants.list"
 621 OS_PARAMETERS_FILE = "parameters.list"
 622
 623 OS_VALIDATE_PARAMETERS = "parameters"
 624 OS_VALIDATE_CALLS = frozenset([OS_VALIDATE_PARAMETERS])
 625
 626 # ssh constants
 627 SSH = "ssh"
 628 SCP = "scp"
 629
 630 # reboot types
 631 INSTANCE_REBOOT_SOFT = "soft"
 632 INSTANCE_REBOOT_HARD = "hard"
 633 INSTANCE_REBOOT_FULL = "full"
 634
 635 REBOOT_TYPES = frozenset([
 636   INSTANCE_REBOOT_SOFT,
 637   INSTANCE_REBOOT_HARD,
 638   INSTANCE_REBOOT_FULL,
 639   ])
 640
 641 # instance reboot behaviors
 642 INSTANCE_REBOOT_ALLOWED = "reboot"
 643 INSTANCE_REBOOT_EXIT = "exit"
 644
 645 REBOOT_BEHAVIORS = frozenset([
 646   INSTANCE_REBOOT_ALLOWED,
 647   INSTANCE_REBOOT_EXIT,
 648   ])
 649
 650 VTYPE_STRING = "string"
 651 VTYPE_MAYBE_STRING = "maybe-string"
 652 VTYPE_BOOL = "bool"
 653 VTYPE_SIZE = "size" # size, in MiBs
 654 VTYPE_INT = "int"
 655 ENFORCEABLE_TYPES = frozenset([
 656   VTYPE_STRING,
 657   VTYPE_MAYBE_STRING,
 658   VTYPE_BOOL,
 659   VTYPE_SIZE,
 660   VTYPE_INT,
 661   ])
 662
 663 # Constant representing that the user does not specify any IP version
 664 IFACE_NO_IP_VERSION_SPECIFIED = 0
 665
 666 # HV parameter names (global namespace)
 667 HV_BOOT_ORDER = "boot_order"
 668 HV_CDROM_IMAGE_PATH = "cdrom_image_path"
 669 HV_KVM_CDROM2_IMAGE_PATH = "cdrom2_image_path"
 670 HV_KVM_FLOPPY_IMAGE_PATH = "floppy_image_path"
 671 HV_NIC_TYPE = "nic_type"
 672 HV_DISK_TYPE = "disk_type"
 673 HV_KVM_CDROM_DISK_TYPE = "cdrom_disk_type"
 674 HV_VNC_BIND_ADDRESS = "vnc_bind_address"
 675 HV_VNC_PASSWORD_FILE = "vnc_password_file"
 676 HV_VNC_TLS = "vnc_tls"
 677 HV_VNC_X509 = "vnc_x509_path"
 678 HV_VNC_X509_VERIFY = "vnc_x509_verify"
 679 HV_KVM_SPICE_BIND = "spice_bind"
 680 HV_KVM_SPICE_IP_VERSION = "spice_ip_version"
 681 HV_KVM_SPICE_PASSWORD_FILE = "spice_password_file"
 682 HV_KVM_SPICE_LOSSLESS_IMG_COMPR = "spice_image_compression"
 683 HV_KVM_SPICE_JPEG_IMG_COMPR = "spice_jpeg_wan_compression"
 684 HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR = "spice_zlib_glz_wan_compression"
 685 HV_KVM_SPICE_STREAMING_VIDEO_DETECTION = "spice_streaming_video"
 686 HV_KVM_SPICE_AUDIO_COMPR = "spice_playback_compression"
 687 HV_KVM_SPICE_USE_TLS = "spice_use_tls"
 688 HV_KVM_SPICE_TLS_CIPHERS = "spice_tls_ciphers"
 689 HV_KVM_SPICE_USE_VDAGENT = "spice_use_vdagent"
 690 HV_ACPI = "acpi"
 691 HV_PAE = "pae"
 692 HV_USE_BOOTLOADER = "use_bootloader"
 693 HV_BOOTLOADER_ARGS = "bootloader_args"
 694 HV_BOOTLOADER_PATH = "bootloader_path"
 695 HV_KERNEL_ARGS = "kernel_args"
 696 HV_KERNEL_PATH = "kernel_path"
 697 HV_INITRD_PATH = "initrd_path"
 698 HV_ROOT_PATH = "root_path"
 699 HV_SERIAL_CONSOLE = "serial_console"
 700 HV_USB_MOUSE = "usb_mouse"
 701 HV_KEYMAP = "keymap"
 702 HV_DEVICE_MODEL = "device_model"
 703 HV_INIT_SCRIPT = "init_script"
 704 HV_MIGRATION_PORT = "migration_port"
 705 HV_MIGRATION_BANDWIDTH = "migration_bandwidth"
 706 HV_MIGRATION_DOWNTIME = "migration_downtime"
 707 HV_MIGRATION_MODE = "migration_mode"
 708 HV_USE_LOCALTIME = "use_localtime"
 709 HV_DISK_CACHE = "disk_cache"
 710 HV_SECURITY_MODEL = "security_model"
 711 HV_SECURITY_DOMAIN = "security_domain"
 712 HV_KVM_FLAG = "kvm_flag"
 713 HV_VHOST_NET = "vhost_net"
 714 HV_KVM_USE_CHROOT = "use_chroot"
 715 HV_CPU_MASK = "cpu_mask"
 716 HV_MEM_PATH = "mem_path"
 717 HV_PASSTHROUGH = "pci_pass"
 718 HV_BLOCKDEV_PREFIX = "blockdev_prefix"
 719 HV_REBOOT_BEHAVIOR = "reboot_behavior"
 720 HV_CPU_TYPE = "cpu_type"
 721 HV_CPU_CAP = "cpu_cap"
 722 HV_CPU_WEIGHT = "cpu_weight"
 723
 724
 725 HVS_PARAMETER_TYPES = {
 726   HV_BOOT_ORDER: VTYPE_STRING,
 727   HV_KVM_FLOPPY_IMAGE_PATH: VTYPE_STRING,
 728   HV_CDROM_IMAGE_PATH: VTYPE_STRING,
 729   HV_KVM_CDROM2_IMAGE_PATH: VTYPE_STRING,
 730   HV_NIC_TYPE: VTYPE_STRING,
 731   HV_DISK_TYPE: VTYPE_STRING,
 732   HV_KVM_CDROM_DISK_TYPE: VTYPE_STRING,
 733   HV_VNC_PASSWORD_FILE: VTYPE_STRING,
 734   HV_VNC_BIND_ADDRESS: VTYPE_STRING,
 735   HV_VNC_TLS: VTYPE_BOOL,
 736   HV_VNC_X509: VTYPE_STRING,
 737   HV_VNC_X509_VERIFY: VTYPE_BOOL,
 738   HV_KVM_SPICE_BIND: VTYPE_STRING,
 739   HV_KVM_SPICE_IP_VERSION: VTYPE_INT,
 740   HV_KVM_SPICE_PASSWORD_FILE: VTYPE_STRING,
 741   HV_KVM_SPICE_LOSSLESS_IMG_COMPR: VTYPE_STRING,
 742   HV_KVM_SPICE_JPEG_IMG_COMPR: VTYPE_STRING,
 743   HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR: VTYPE_STRING,
 744   HV_KVM_SPICE_STREAMING_VIDEO_DETECTION: VTYPE_STRING,
 745   HV_KVM_SPICE_AUDIO_COMPR: VTYPE_BOOL,
 746   HV_KVM_SPICE_USE_TLS: VTYPE_BOOL,
 747   HV_KVM_SPICE_TLS_CIPHERS: VTYPE_STRING,
 748   HV_KVM_SPICE_USE_VDAGENT: VTYPE_BOOL,
 749   HV_ACPI: VTYPE_BOOL,
 750   HV_PAE: VTYPE_BOOL,
 751   HV_USE_BOOTLOADER: VTYPE_BOOL,
 752   HV_BOOTLOADER_PATH: VTYPE_STRING,
 753   HV_BOOTLOADER_ARGS: VTYPE_STRING,
 754   HV_KERNEL_PATH: VTYPE_STRING,
 755   HV_KERNEL_ARGS: VTYPE_STRING,
 756   HV_INITRD_PATH: VTYPE_STRING,
 757   HV_ROOT_PATH: VTYPE_MAYBE_STRING,
 758   HV_SERIAL_CONSOLE: VTYPE_BOOL,
 759   HV_USB_MOUSE: VTYPE_STRING,
 760   HV_KEYMAP: VTYPE_STRING,
 761   HV_DEVICE_MODEL: VTYPE_STRING,
 762   HV_INIT_SCRIPT: VTYPE_STRING,
 763   HV_MIGRATION_PORT: VTYPE_INT,
 764   HV_MIGRATION_BANDWIDTH: VTYPE_INT,
 765   HV_MIGRATION_DOWNTIME: VTYPE_INT,
 766   HV_MIGRATION_MODE: VTYPE_STRING,
 767   HV_USE_LOCALTIME: VTYPE_BOOL,
 768   HV_DISK_CACHE: VTYPE_STRING,
 769   HV_SECURITY_MODEL: VTYPE_STRING,
 770   HV_SECURITY_DOMAIN: VTYPE_STRING,
 771   HV_KVM_FLAG: VTYPE_STRING,
 772   HV_VHOST_NET: VTYPE_BOOL,
 773   HV_KVM_USE_CHROOT: VTYPE_BOOL,
 774   HV_CPU_MASK: VTYPE_STRING,
 775   HV_MEM_PATH: VTYPE_STRING,
 776   HV_PASSTHROUGH: VTYPE_STRING,
 777   HV_BLOCKDEV_PREFIX: VTYPE_STRING,
 778   HV_REBOOT_BEHAVIOR: VTYPE_STRING,
 779   HV_CPU_TYPE: VTYPE_STRING,
 780   HV_CPU_CAP: VTYPE_INT,
 781   HV_CPU_WEIGHT: VTYPE_INT,
 782   }
 783
 784 HVS_PARAMETERS = frozenset(HVS_PARAMETER_TYPES.keys())
 785
 786 HVS_PARAMETER_TITLES = {
 787   HV_ACPI: "ACPI",
 788   HV_BOOT_ORDER: "Boot_order",
 789   HV_CDROM_IMAGE_PATH: "CDROM_image_path",
 790   HV_DISK_TYPE: "Disk_type",
 791   HV_INITRD_PATH: "Initrd_path",
 792   HV_KERNEL_PATH: "Kernel_path",
 793   HV_NIC_TYPE: "NIC_type",
 794   HV_PAE: "PAE",
 795   HV_VNC_BIND_ADDRESS: "VNC_bind_address",
 796   HV_PASSTHROUGH: "pci_pass",
 797   HV_CPU_TYPE: "cpu_type",
 798   }
 799
 800 # Migration statuses
 801 HV_MIGRATION_COMPLETED = "completed"
 802 HV_MIGRATION_ACTIVE = "active"
 803 HV_MIGRATION_FAILED = "failed"
 804 HV_MIGRATION_CANCELLED = "cancelled"
 805
 806 HV_MIGRATION_VALID_STATUSES = frozenset([
 807   HV_MIGRATION_COMPLETED,
 808   HV_MIGRATION_ACTIVE,
 809   HV_MIGRATION_FAILED,
 810   HV_MIGRATION_CANCELLED,
 811   ])
 812
 813 HV_MIGRATION_FAILED_STATUSES = frozenset([
 814   HV_MIGRATION_FAILED,
 815   HV_MIGRATION_CANCELLED,
 816   ])
 817
 818 # KVM-specific statuses
 819 HV_KVM_MIGRATION_VALID_STATUSES = HV_MIGRATION_VALID_STATUSES
 820
 821 # Node info keys
 822 HV_NODEINFO_KEY_VERSION = "hv_version"
 823
 824 # Hypervisor state
 825 HVST_MEMORY_TOTAL = "mem_total"
 826 HVST_MEMORY_NODE = "mem_node"
 827 HVST_MEMORY_HV = "mem_hv"
 828 HVST_CPU_TOTAL = "cpu_total"
 829 HVST_CPU_NODE = "cpu_node"
 830
 831 HVST_DEFAULTS = {
 832   HVST_MEMORY_TOTAL: 0,
 833   HVST_MEMORY_NODE: 0,
 834   HVST_MEMORY_HV: 0,
 835   HVST_CPU_TOTAL: 1,
 836   HVST_CPU_NODE: 1,
 837   }
 838
 839 HVSTS_PARAMETER_TYPES = {
 840   HVST_MEMORY_TOTAL: VTYPE_INT,
 841   HVST_MEMORY_NODE: VTYPE_INT,
 842   HVST_MEMORY_HV: VTYPE_INT,
 843   HVST_CPU_TOTAL: VTYPE_INT,
 844   HVST_CPU_NODE: VTYPE_INT,
 845   }
 846
 847 HVSTS_PARAMETERS = frozenset(HVSTS_PARAMETER_TYPES.keys())
 848
 849 # Disk state
 850 DS_DISK_TOTAL = "disk_total"
 851 DS_DISK_RESERVED = "disk_reserved"
 852 DS_DISK_OVERHEAD = "disk_overhead"
 853
 854 DS_DEFAULTS = {
 855   DS_DISK_TOTAL: 0,
 856   DS_DISK_RESERVED: 0,
 857   DS_DISK_OVERHEAD: 0,
 858   }
 859
 860 DSS_PARAMETER_TYPES = {
 861   DS_DISK_TOTAL: VTYPE_INT,
 862   DS_DISK_RESERVED: VTYPE_INT,
 863   DS_DISK_OVERHEAD: VTYPE_INT,
 864   }
 865
 866 DSS_PARAMETERS = frozenset(DSS_PARAMETER_TYPES.keys())
 867 DS_VALID_TYPES = frozenset([LD_LV])
 868
 869 # Backend parameter names
 870 BE_MEMORY = "memory" # deprecated and replaced by max and min mem
 871 BE_MAXMEM = "maxmem"
 872 BE_MINMEM = "minmem"
 873 BE_VCPUS = "vcpus"
 874 BE_AUTO_BALANCE = "auto_balance"
 875 BE_ALWAYS_FAILOVER = "always_failover"
 876 BE_SPINDLE_USE = "spindle_use"
 877
 878 BES_PARAMETER_TYPES = {
 879   BE_MAXMEM: VTYPE_SIZE,
 880   BE_MINMEM: VTYPE_SIZE,
 881   BE_VCPUS: VTYPE_INT,
 882   BE_AUTO_BALANCE: VTYPE_BOOL,
 883   BE_ALWAYS_FAILOVER: VTYPE_BOOL,
 884   BE_SPINDLE_USE: VTYPE_INT,
 885   }
 886
 887 BES_PARAMETER_TITLES = {
 888   BE_AUTO_BALANCE: "Auto_balance",
 889   BE_MAXMEM: "ConfigMaxMem",
 890   BE_MINMEM: "ConfigMinMem",
 891   BE_VCPUS: "ConfigVCPUs",
 892   }
 893
 894 BES_PARAMETER_COMPAT = {
 895   BE_MEMORY: VTYPE_SIZE,
 896   }
 897 BES_PARAMETER_COMPAT.update(BES_PARAMETER_TYPES)
 898
 899 BES_PARAMETERS = frozenset(BES_PARAMETER_TYPES.keys())
 900
 901 # instance specs
 902 ISPEC_MEM_SIZE = "memory-size"
 903 ISPEC_CPU_COUNT = "cpu-count"
 904 ISPEC_DISK_COUNT = "disk-count"
 905 ISPEC_DISK_SIZE = "disk-size"
 906 ISPEC_NIC_COUNT = "nic-count"
 907 ISPEC_SPINDLE_USE = "spindle-use"
 908
 909 ISPECS_PARAMETER_TYPES = {
 910   ISPEC_MEM_SIZE: VTYPE_INT,
 911   ISPEC_CPU_COUNT: VTYPE_INT,
 912   ISPEC_DISK_COUNT: VTYPE_INT,
 913   ISPEC_DISK_SIZE: VTYPE_INT,
 914   ISPEC_NIC_COUNT: VTYPE_INT,
 915   ISPEC_SPINDLE_USE: VTYPE_INT,
 916   }
 917
 918 ISPECS_PARAMETERS = frozenset(ISPECS_PARAMETER_TYPES.keys())
 919
 920 ISPECS_MIN = "min"
 921 ISPECS_MAX = "max"
 922 ISPECS_STD = "std"
 923 IPOLICY_DTS = "disk-templates"
 924 IPOLICY_VCPU_RATIO = "vcpu-ratio"
 925 IPOLICY_SPINDLE_RATIO = "spindle-ratio"
 926
 927 IPOLICY_ISPECS = frozenset([
 928   ISPECS_MIN,
 929   ISPECS_MAX,
 930   ISPECS_STD,
 931   ])
 932
 933 IPOLICY_PARAMETERS = frozenset([
 934   IPOLICY_VCPU_RATIO,
 935   IPOLICY_SPINDLE_RATIO,
 936   ])
 937
 938 IPOLICY_ALL_KEYS = (IPOLICY_ISPECS |
 939                     IPOLICY_PARAMETERS |
 940                     frozenset([IPOLICY_DTS]))
 941
 942 # Node parameter names
 943 ND_OOB_PROGRAM = "oob_program"
 944 ND_SPINDLE_COUNT = "spindle_count"
 945
 946 NDS_PARAMETER_TYPES = {
 947   ND_OOB_PROGRAM: VTYPE_STRING,
 948   ND_SPINDLE_COUNT: VTYPE_INT,
 949   }
 950
 951 NDS_PARAMETERS = frozenset(NDS_PARAMETER_TYPES.keys())
 952
 953 NDS_PARAMETER_TITLES = {
 954   ND_OOB_PROGRAM: "OutOfBandProgram",
 955   ND_SPINDLE_COUNT: "SpindleCount",
 956   }
 957
 958 # Logical Disks parameters
 959 LDP_RESYNC_RATE = "resync-rate"
 960 LDP_STRIPES = "stripes"
 961 LDP_BARRIERS = "disabled-barriers"
 962 LDP_NO_META_FLUSH = "disable-meta-flush"
 963 LDP_DEFAULT_METAVG = "default-metavg"
 964 LDP_DISK_CUSTOM = "disk-custom"
 965 LDP_NET_CUSTOM = "net-custom"
 966 LDP_DYNAMIC_RESYNC = "dynamic-resync"
 967 LDP_PLAN_AHEAD = "c-plan-ahead"
 968 LDP_FILL_TARGET = "c-fill-target"
 969 LDP_DELAY_TARGET = "c-delay-target"
 970 LDP_MAX_RATE = "c-max-rate"
 971 LDP_MIN_RATE = "c-min-rate"
 972 LDP_POOL = "pool"
 973 DISK_LD_TYPES = {
 974   LDP_RESYNC_RATE: VTYPE_INT,
 975   LDP_STRIPES: VTYPE_INT,
 976   LDP_BARRIERS: VTYPE_STRING,
 977   LDP_NO_META_FLUSH: VTYPE_BOOL,
 978   LDP_DEFAULT_METAVG: VTYPE_STRING,
 979   LDP_DISK_CUSTOM: VTYPE_STRING,
 980   LDP_NET_CUSTOM: VTYPE_STRING,
 981   LDP_DYNAMIC_RESYNC: VTYPE_BOOL,
 982   LDP_PLAN_AHEAD: VTYPE_INT,
 983   LDP_FILL_TARGET: VTYPE_INT,
 984   LDP_DELAY_TARGET: VTYPE_INT,
 985   LDP_MAX_RATE: VTYPE_INT,
 986   LDP_MIN_RATE: VTYPE_INT,
 987   LDP_POOL: VTYPE_STRING,
 988   }
 989 DISK_LD_PARAMETERS = frozenset(DISK_LD_TYPES.keys())
 990
 991 # Disk template parameters (can be set/changed by the user via gnt-cluster and
 992 # gnt-group)
 993 DRBD_RESYNC_RATE = "resync-rate"
 994 DRBD_DATA_STRIPES = "data-stripes"
 995 DRBD_META_STRIPES = "meta-stripes"
 996 DRBD_DISK_BARRIERS = "disk-barriers"
 997 DRBD_META_BARRIERS = "meta-barriers"
 998 DRBD_DEFAULT_METAVG = "metavg"
 999 DRBD_DISK_CUSTOM = "disk-custom"
1000 DRBD_NET_CUSTOM = "net-custom"
1001 DRBD_DYNAMIC_RESYNC = "dynamic-resync"
1002 DRBD_PLAN_AHEAD = "c-plan-ahead"
1003 DRBD_FILL_TARGET = "c-fill-target"
1004 DRBD_DELAY_TARGET = "c-delay-target"
1005 DRBD_MAX_RATE = "c-max-rate"
1006 DRBD_MIN_RATE = "c-min-rate"
1007 LV_STRIPES = "stripes"
1008 RBD_POOL = "pool"
1009 DISK_DT_TYPES = {
1010   DRBD_RESYNC_RATE: VTYPE_INT,
1011   DRBD_DATA_STRIPES: VTYPE_INT,
1012   DRBD_META_STRIPES: VTYPE_INT,
1013   DRBD_DISK_BARRIERS: VTYPE_STRING,
1014   DRBD_META_BARRIERS: VTYPE_BOOL,
1015   DRBD_DEFAULT_METAVG: VTYPE_STRING,
1016   DRBD_DISK_CUSTOM: VTYPE_STRING,
1017   DRBD_NET_CUSTOM: VTYPE_STRING,
1018   DRBD_DYNAMIC_RESYNC: VTYPE_BOOL,
1019   DRBD_PLAN_AHEAD: VTYPE_INT,
1020   DRBD_FILL_TARGET: VTYPE_INT,
1021   DRBD_DELAY_TARGET: VTYPE_INT,
1022   DRBD_MAX_RATE: VTYPE_INT,
1023   DRBD_MIN_RATE: VTYPE_INT,
1024   LV_STRIPES: VTYPE_INT,
1025   RBD_POOL: VTYPE_STRING,
1026   }
1027
1028 DISK_DT_PARAMETERS = frozenset(DISK_DT_TYPES.keys())
1029
1030 # OOB supported commands
1031 OOB_POWER_ON = "power-on"
1032 OOB_POWER_OFF = "power-off"
1033 OOB_POWER_CYCLE = "power-cycle"
1034 OOB_POWER_STATUS = "power-status"
1035 OOB_HEALTH = "health"
1036
1037 OOB_COMMANDS = frozenset([
1038   OOB_POWER_ON,
1039   OOB_POWER_OFF,
1040   OOB_POWER_CYCLE,
1041   OOB_POWER_STATUS,
1042   OOB_HEALTH,
1043   ])
1044
1045 OOB_POWER_STATUS_POWERED = "powered"
1046
1047 OOB_TIMEOUT = 60 # 60 seconds
1048 OOB_POWER_DELAY = 2.0 # 2 seconds
1049
1050 OOB_STATUS_OK = "OK"
1051 OOB_STATUS_WARNING = "WARNING"
1052 OOB_STATUS_CRITICAL = "CRITICAL"
1053 OOB_STATUS_UNKNOWN = "UNKNOWN"
1054
1055 OOB_STATUSES = frozenset([
1056   OOB_STATUS_OK,
1057   OOB_STATUS_WARNING,
1058   OOB_STATUS_CRITICAL,
1059   OOB_STATUS_UNKNOWN,
1060   ])
1061
1062 # Instance Parameters Profile
1063 PP_DEFAULT = "default"
1064
1065 # NIC_* constants are used inside the ganeti config
1066 NIC_MODE = "mode"
1067 NIC_LINK = "link"
1068
1069 NIC_MODE_BRIDGED = "bridged"
1070 NIC_MODE_ROUTED = "routed"
1071 NIC_IP_POOL = "pool"
1072
1073 NIC_VALID_MODES = frozenset([NIC_MODE_BRIDGED, NIC_MODE_ROUTED])
1074
1075 # An extra description of the network.
1076 # Can be used by hooks/kvm-vif-bridge to apply different rules
1077 NETWORK_TYPE_PRIVATE = "private"
1078 NETWORK_TYPE_PUBLIC = "public"
1079
1080 NETWORK_VALID_TYPES = frozenset([NETWORK_TYPE_PRIVATE, NETWORK_TYPE_PUBLIC])
1081
1082 NICS_PARAMETER_TYPES = {
1083   NIC_MODE: VTYPE_STRING,
1084   NIC_LINK: VTYPE_STRING,
1085   }
1086
1087 NICS_PARAMETERS = frozenset(NICS_PARAMETER_TYPES.keys())
1088
1089 # IDISK_* constants are used in opcodes, to create/change disks
1090 IDISK_SIZE = "size"
1091 IDISK_MODE = "mode"
1092 IDISK_ADOPT = "adopt"
1093 IDISK_VG = "vg"
1094 IDISK_METAVG = "metavg"
1095 IDISK_PARAMS_TYPES = {
1096   IDISK_SIZE: VTYPE_SIZE,
1097   IDISK_MODE: VTYPE_STRING,
1098   IDISK_ADOPT: VTYPE_STRING,
1099   IDISK_VG: VTYPE_STRING,
1100   IDISK_METAVG: VTYPE_STRING,
1101   }
1102 IDISK_PARAMS = frozenset(IDISK_PARAMS_TYPES.keys())
1103
1104 # INIC_* constants are used in opcodes, to create/change nics
1105 INIC_MAC = "mac"
1106 INIC_IP = "ip"
1107 INIC_MODE = "mode"
1108 INIC_LINK = "link"
1109 INIC_NETWORK = "network"
1110 INIC_PARAMS_TYPES = {
1111   INIC_IP: VTYPE_MAYBE_STRING,
1112   INIC_LINK: VTYPE_STRING,
1113   INIC_MAC: VTYPE_STRING,
1114   INIC_MODE: VTYPE_STRING,
1115   INIC_NETWORK: VTYPE_MAYBE_STRING,
1116   }
1117 INIC_PARAMS = frozenset(INIC_PARAMS_TYPES.keys())
1118
1119 # Hypervisor constants
1120 HT_XEN_PVM = "xen-pvm"
1121 HT_FAKE = "fake"
1122 HT_XEN_HVM = "xen-hvm"
1123 HT_KVM = "kvm"
1124 HT_CHROOT = "chroot"
1125 HT_LXC = "lxc"
1126 HYPER_TYPES = frozenset([
1127   HT_XEN_PVM,
1128   HT_FAKE,
1129   HT_XEN_HVM,
1130   HT_KVM,
1131   HT_CHROOT,
1132   HT_LXC,
1133   ])
1134 HTS_REQ_PORT = frozenset([HT_XEN_HVM, HT_KVM])
1135
1136 VNC_BASE_PORT = 5900
1137 VNC_DEFAULT_BIND_ADDRESS = IP4_ADDRESS_ANY
1138
1139 # NIC types
1140 HT_NIC_RTL8139 = "rtl8139"
1141 HT_NIC_NE2K_PCI = "ne2k_pci"
1142 HT_NIC_NE2K_ISA = "ne2k_isa"
1143 HT_NIC_I82551 = "i82551"
1144 HT_NIC_I85557B = "i82557b"
1145 HT_NIC_I8259ER = "i82559er"
1146 HT_NIC_PCNET = "pcnet"
1147 HT_NIC_E1000 = "e1000"
1148 HT_NIC_PARAVIRTUAL = HT_DISK_PARAVIRTUAL = "paravirtual"
1149
1150 HT_HVM_VALID_NIC_TYPES = frozenset([
1151   HT_NIC_RTL8139,
1152   HT_NIC_NE2K_PCI,
1153   HT_NIC_E1000,
1154   HT_NIC_NE2K_ISA,
1155   HT_NIC_PARAVIRTUAL,
1156   ])
1157 HT_KVM_VALID_NIC_TYPES = frozenset([
1158   HT_NIC_RTL8139,
1159   HT_NIC_NE2K_PCI,
1160   HT_NIC_NE2K_ISA,
1161   HT_NIC_I82551,
1162   HT_NIC_I85557B,
1163   HT_NIC_I8259ER,
1164   HT_NIC_PCNET,
1165   HT_NIC_E1000,
1166   HT_NIC_PARAVIRTUAL,
1167   ])
1168
1169 # Disk types
1170 HT_DISK_IOEMU = "ioemu"
1171 HT_DISK_IDE = "ide"
1172 HT_DISK_SCSI = "scsi"
1173 HT_DISK_SD = "sd"
1174 HT_DISK_MTD = "mtd"
1175 HT_DISK_PFLASH = "pflash"
1176
1177 HT_CACHE_DEFAULT = "default"
1178 HT_CACHE_NONE = "none"
1179 HT_CACHE_WTHROUGH = "writethrough"
1180 HT_CACHE_WBACK = "writeback"
1181 HT_VALID_CACHE_TYPES = frozenset([
1182   HT_CACHE_DEFAULT,
1183   HT_CACHE_NONE,
1184   HT_CACHE_WTHROUGH,
1185   HT_CACHE_WBACK,
1186   ])
1187
1188 HT_HVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IOEMU])
1189 HT_KVM_VALID_DISK_TYPES = frozenset([
1190   HT_DISK_PARAVIRTUAL,
1191   HT_DISK_IDE,
1192   HT_DISK_SCSI,
1193   HT_DISK_SD,
1194   HT_DISK_MTD,
1195   HT_DISK_PFLASH,
1196   ])
1197
1198 # Mouse types:
1199 HT_MOUSE_MOUSE = "mouse"
1200 HT_MOUSE_TABLET = "tablet"
1201
1202 HT_KVM_VALID_MOUSE_TYPES = frozenset([HT_MOUSE_MOUSE, HT_MOUSE_TABLET])
1203
1204 # Boot order
1205 HT_BO_FLOPPY = "floppy"
1206 HT_BO_CDROM = "cdrom"
1207 HT_BO_DISK = "disk"
1208 HT_BO_NETWORK = "network"
1209
1210 HT_KVM_VALID_BO_TYPES = frozenset([
1211   HT_BO_FLOPPY,
1212   HT_BO_CDROM,
1213   HT_BO_DISK,
1214   HT_BO_NETWORK,
1215   ])
1216
1217 # SPICE lossless image compression options
1218 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_GLZ = "auto_glz"
1219 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_LZ = "auto_lz"
1220 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_QUIC = "quic"
1221 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_GLZ = "glz"
1222 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_LZ = "lz"
1223 HT_KVM_SPICE_LOSSLESS_IMG_COMPR_OFF = "off"
1224
1225 HT_KVM_SPICE_VALID_LOSSLESS_IMG_COMPR_OPTIONS = frozenset([
1226   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_GLZ,
1227   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_LZ,
1228   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_QUIC,
1229   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_GLZ,
1230   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_LZ,
1231   HT_KVM_SPICE_LOSSLESS_IMG_COMPR_OFF,
1232   ])
1233
1234 # SPICE lossy image compression options (valid for both jpeg and zlib-glz)
1235 HT_KVM_SPICE_LOSSY_IMG_COMPR_AUTO = "auto"
1236 HT_KVM_SPICE_LOSSY_IMG_COMPR_NEVER = "never"
1237 HT_KVM_SPICE_LOSSY_IMG_COMPR_ALWAYS = "always"
1238
1239 HT_KVM_SPICE_VALID_LOSSY_IMG_COMPR_OPTIONS = frozenset([
1240   HT_KVM_SPICE_LOSSY_IMG_COMPR_AUTO,
1241   HT_KVM_SPICE_LOSSY_IMG_COMPR_NEVER,
1242   HT_KVM_SPICE_LOSSY_IMG_COMPR_ALWAYS,
1243   ])
1244
1245 # SPICE video stream detection
1246 HT_KVM_SPICE_VIDEO_STREAM_DETECTION_OFF = "off"
1247 HT_KVM_SPICE_VIDEO_STREAM_DETECTION_ALL = "all"
1248 HT_KVM_SPICE_VIDEO_STREAM_DETECTION_FILTER = "filter"
1249
1250 HT_KVM_SPICE_VALID_VIDEO_STREAM_DETECTION_OPTIONS = frozenset([
1251   HT_KVM_SPICE_VIDEO_STREAM_DETECTION_OFF,
1252   HT_KVM_SPICE_VIDEO_STREAM_DETECTION_ALL,
1253   HT_KVM_SPICE_VIDEO_STREAM_DETECTION_FILTER,
1254   ])
1255
1256 # Security models
1257 HT_SM_NONE = "none"
1258 HT_SM_USER = "user"
1259 HT_SM_POOL = "pool"
1260
1261 HT_KVM_VALID_SM_TYPES = frozenset([HT_SM_NONE, HT_SM_USER, HT_SM_POOL])
1262
1263 # Kvm flag values
1264 HT_KVM_ENABLED = "enabled"
1265 HT_KVM_DISABLED = "disabled"
1266
1267 HT_KVM_FLAG_VALUES = frozenset([HT_KVM_ENABLED, HT_KVM_DISABLED])
1268
1269 # Migration type
1270 HT_MIGRATION_LIVE = "live"
1271 HT_MIGRATION_NONLIVE = "non-live"
1272 HT_MIGRATION_MODES = frozenset([HT_MIGRATION_LIVE, HT_MIGRATION_NONLIVE])
1273
1274 # Cluster Verify steps
1275 VERIFY_NPLUSONE_MEM = "nplusone_mem"
1276 VERIFY_OPTIONAL_CHECKS = frozenset([VERIFY_NPLUSONE_MEM])
1277
1278 # Cluster Verify error classes
1279 CV_TCLUSTER = "cluster"
1280 CV_TNODE = "node"
1281 CV_TINSTANCE = "instance"
1282
1283 # Cluster Verify error codes and documentation
1284 CV_ECLUSTERCFG = \
1285   (CV_TCLUSTER, "ECLUSTERCFG", "Cluster configuration verification failure")
1286 CV_ECLUSTERCERT = \
1287   (CV_TCLUSTER, "ECLUSTERCERT",
1288    "Cluster certificate files verification failure")
1289 CV_ECLUSTERFILECHECK = \
1290   (CV_TCLUSTER, "ECLUSTERFILECHECK",
1291    "Cluster configuration verification failure")
1292 CV_ECLUSTERDANGLINGNODES = \
1293   (CV_TNODE, "ECLUSTERDANGLINGNODES",
1294    "Some nodes belong to non-existing groups")
1295 CV_ECLUSTERDANGLINGINST = \
1296   (CV_TNODE, "ECLUSTERDANGLINGINST",
1297    "Some instances have a non-existing primary node")
1298 CV_EINSTANCEBADNODE = \
1299   (CV_TINSTANCE, "EINSTANCEBADNODE",
1300    "Instance marked as running lives on an offline node")
1301 CV_EINSTANCEDOWN = \
1302   (CV_TINSTANCE, "EINSTANCEDOWN", "Instance not running on its primary node")
1303 CV_EINSTANCELAYOUT = \
1304   (CV_TINSTANCE, "EINSTANCELAYOUT", "Instance has multiple secondary nodes")
1305 CV_EINSTANCEMISSINGDISK = \
1306   (CV_TINSTANCE, "EINSTANCEMISSINGDISK", "Missing volume on an instance")
1307 CV_EINSTANCEFAULTYDISK = \
1308   (CV_TINSTANCE, "EINSTANCEFAULTYDISK",
1309    "Impossible to retrieve status for a disk")
1310 CV_EINSTANCEWRONGNODE = \
1311   (CV_TINSTANCE, "EINSTANCEWRONGNODE", "Instance running on the wrong node")
1312 CV_EINSTANCESPLITGROUPS = \
1313   (CV_TINSTANCE, "EINSTANCESPLITGROUPS",
1314    "Instance with primary and secondary nodes in different groups")
1315 CV_EINSTANCEPOLICY = \
1316   (CV_TINSTANCE, "EINSTANCEPOLICY",
1317    "Instance does not meet policy")
1318 CV_ENODEDRBD = \
1319   (CV_TNODE, "ENODEDRBD", "Error parsing the DRBD status file")
1320 CV_ENODEDRBDHELPER = \
1321   (CV_TNODE, "ENODEDRBDHELPER", "Error caused by the DRBD helper")
1322 CV_ENODEFILECHECK = \
1323   (CV_TNODE, "ENODEFILECHECK",
1324    "Error retrieving the checksum of the node files")
1325 CV_ENODEHOOKS = \
1326   (CV_TNODE, "ENODEHOOKS", "Communication failure in hooks execution")
1327 CV_ENODEHV = \
1328   (CV_TNODE, "ENODEHV", "Hypervisor parameters verification failure")
1329 CV_ENODELVM = \
1330   (CV_TNODE, "ENODELVM", "LVM-related node error")
1331 CV_ENODEN1 = \
1332   (CV_TNODE, "ENODEN1", "Not enough memory to accommodate instance failovers")
1333 CV_ENODENET = \
1334   (CV_TNODE, "ENODENET", "Network-related node error")
1335 CV_ENODEOS = \
1336   (CV_TNODE, "ENODEOS", "OS-related node error")
1337 CV_ENODEORPHANINSTANCE = \
1338   (CV_TNODE, "ENODEORPHANINSTANCE", "Unknown intance running on a node")
1339 CV_ENODEORPHANLV = \
1340   (CV_TNODE, "ENODEORPHANLV", "Unknown LVM logical volume")
1341 CV_ENODERPC = \
1342   (CV_TNODE, "ENODERPC",
1343    "Error during connection to the primary node of an instance")
1344 CV_ENODESSH = \
1345   (CV_TNODE, "ENODESSH", "SSH-related node error")
1346 CV_ENODEVERSION = \
1347   (CV_TNODE, "ENODEVERSION",
1348    "Protocol version mismatch or Ganeti version mismatch")
1349 CV_ENODESETUP = \
1350   (CV_TNODE, "ENODESETUP", "Node setup error")
1351 CV_ENODETIME = \
1352   (CV_TNODE, "ENODETIME", "Node returned invalid time")
1353 CV_ENODEOOBPATH = \
1354   (CV_TNODE, "ENODEOOBPATH", "Invalid Out Of Band path")
1355 CV_ENODEUSERSCRIPTS = \
1356   (CV_TNODE, "ENODEUSERSCRIPTS", "User scripts not present or not executable")
1357 CV_ENODEFILESTORAGEPATHS = \
1358   (CV_TNODE, "ENODEFILESTORAGEPATHS", "Detected bad file storage paths")
1359
1360 CV_ALL_ECODES = frozenset([
1361   CV_ECLUSTERCFG,
1362   CV_ECLUSTERCERT,
1363   CV_ECLUSTERFILECHECK,
1364   CV_ECLUSTERDANGLINGNODES,
1365   CV_ECLUSTERDANGLINGINST,
1366   CV_EINSTANCEBADNODE,
1367   CV_EINSTANCEDOWN,
1368   CV_EINSTANCELAYOUT,
1369   CV_EINSTANCEMISSINGDISK,
1370   CV_EINSTANCEFAULTYDISK,
1371   CV_EINSTANCEWRONGNODE,
1372   CV_EINSTANCESPLITGROUPS,
1373   CV_EINSTANCEPOLICY,
1374   CV_ENODEDRBD,
1375   CV_ENODEDRBDHELPER,
1376   CV_ENODEFILECHECK,
1377   CV_ENODEHOOKS,
1378   CV_ENODEHV,
1379   CV_ENODELVM,
1380   CV_ENODEN1,
1381   CV_ENODENET,
1382   CV_ENODEOS,
1383   CV_ENODEORPHANINSTANCE,
1384   CV_ENODEORPHANLV,
1385   CV_ENODERPC,
1386   CV_ENODESSH,
1387   CV_ENODEVERSION,
1388   CV_ENODESETUP,
1389   CV_ENODETIME,
1390   CV_ENODEOOBPATH,
1391   CV_ENODEUSERSCRIPTS,
1392   CV_ENODEFILESTORAGEPATHS,
1393   ])
1394
1395 CV_ALL_ECODES_STRINGS = frozenset(estr for (_, estr, _) in CV_ALL_ECODES)
1396
1397 # Node verify constants
1398 NV_DRBDHELPER = "drbd-helper"
1399 NV_DRBDLIST = "drbd-list"
1400 NV_FILELIST = "filelist"
1401 NV_HVINFO = "hvinfo"
1402 NV_HYPERVISOR = "hypervisor"
1403 NV_HVPARAMS = "hvparms"
1404 NV_INSTANCELIST = "instancelist"
1405 NV_LVLIST = "lvlist"
1406 NV_MASTERIP = "master-ip"
1407 NV_NODELIST = "nodelist"
1408 NV_NODENETTEST = "node-net-test"
1409 NV_NODESETUP = "nodesetup"
1410 NV_OSLIST = "oslist"
1411 NV_PVLIST = "pvlist"
1412 NV_TIME = "time"
1413 NV_VERSION = "version"
1414 NV_VGLIST = "vglist"
1415 NV_VMNODES = "vmnodes"
1416 NV_OOB_PATHS = "oob-paths"
1417 NV_BRIDGES = "bridges"
1418 NV_USERSCRIPTS = "user-scripts"
1419 NV_FILE_STORAGE_PATHS = "file-storage-paths"
1420
1421 # Instance status
1422 INSTST_RUNNING = "running"
1423 INSTST_ADMINDOWN = "ADMIN_down"
1424 INSTST_ADMINOFFLINE = "ADMIN_offline"
1425 INSTST_NODEOFFLINE = "ERROR_nodeoffline"
1426 INSTST_NODEDOWN = "ERROR_nodedown"
1427 INSTST_WRONGNODE = "ERROR_wrongnode"
1428 INSTST_ERRORUP = "ERROR_up"
1429 INSTST_ERRORDOWN = "ERROR_down"
1430 INSTST_ALL = frozenset([
1431   INSTST_RUNNING,
1432   INSTST_ADMINDOWN,
1433   INSTST_ADMINOFFLINE,
1434   INSTST_NODEOFFLINE,
1435   INSTST_NODEDOWN,
1436   INSTST_WRONGNODE,
1437   INSTST_ERRORUP,
1438   INSTST_ERRORDOWN,
1439   ])
1440
1441 # Admin states
1442 ADMINST_UP = "up"
1443 ADMINST_DOWN = "down"
1444 ADMINST_OFFLINE = "offline"
1445 ADMINST_ALL = frozenset([
1446   ADMINST_UP,
1447   ADMINST_DOWN,
1448   ADMINST_OFFLINE,
1449   ])
1450
1451 # Node roles
1452 NR_REGULAR = "R"
1453 NR_MASTER = "M"
1454 NR_MCANDIDATE = "C"
1455 NR_DRAINED = "D"
1456 NR_OFFLINE = "O"
1457 NR_ALL = frozenset([
1458   NR_REGULAR,
1459   NR_MASTER,
1460   NR_MCANDIDATE,
1461   NR_DRAINED,
1462   NR_OFFLINE,
1463   ])
1464
1465 # SSL certificate check constants (in days)
1466 SSL_CERT_EXPIRATION_WARN = 30
1467 SSL_CERT_EXPIRATION_ERROR = 7
1468
1469 # Allocator framework constants
1470 IALLOCATOR_VERSION = 2
1471 IALLOCATOR_DIR_IN = "in"
1472 IALLOCATOR_DIR_OUT = "out"
1473 VALID_IALLOCATOR_DIRECTIONS = frozenset([
1474   IALLOCATOR_DIR_IN,
1475   IALLOCATOR_DIR_OUT,
1476   ])
1477 IALLOCATOR_MODE_ALLOC = "allocate"
1478 IALLOCATOR_MODE_RELOC = "relocate"
1479 IALLOCATOR_MODE_CHG_GROUP = "change-group"
1480 IALLOCATOR_MODE_NODE_EVAC = "node-evacuate"
1481 IALLOCATOR_MODE_MULTI_ALLOC = "multi-allocate"
1482 VALID_IALLOCATOR_MODES = frozenset([
1483   IALLOCATOR_MODE_ALLOC,
1484   IALLOCATOR_MODE_RELOC,
1485   IALLOCATOR_MODE_CHG_GROUP,
1486   IALLOCATOR_MODE_NODE_EVAC,
1487   IALLOCATOR_MODE_MULTI_ALLOC,
1488   ])
1489 IALLOCATOR_SEARCH_PATH = _autoconf.IALLOCATOR_SEARCH_PATH
1490 DEFAULT_IALLOCATOR_SHORTCUT = "."
1491
1492 IALLOCATOR_NEVAC_PRI = "primary-only"
1493 IALLOCATOR_NEVAC_SEC = "secondary-only"
1494 IALLOCATOR_NEVAC_ALL = "all"
1495 IALLOCATOR_NEVAC_MODES = frozenset([
1496   IALLOCATOR_NEVAC_PRI,
1497   IALLOCATOR_NEVAC_SEC,
1498   IALLOCATOR_NEVAC_ALL,
1499   ])
1500
1501 # Node evacuation
1502 NODE_EVAC_PRI = "primary-only"
1503 NODE_EVAC_SEC = "secondary-only"
1504 NODE_EVAC_ALL = "all"
1505 NODE_EVAC_MODES = frozenset([
1506   NODE_EVAC_PRI,
1507   NODE_EVAC_SEC,
1508   NODE_EVAC_ALL,
1509   ])
1510
1511 # Job queue
1512 JOB_QUEUE_VERSION = 1
1513 JOB_QUEUE_SIZE_HARD_LIMIT = 5000
1514
1515 JOB_ID_TEMPLATE = r"\d+"
1516 JOB_FILE_RE = re.compile(r"^job-(%s)$" % JOB_ID_TEMPLATE)
1517
1518 # unchanged job return
1519 JOB_NOTCHANGED = "nochange"
1520
1521 # Job status
1522 JOB_STATUS_QUEUED = "queued"
1523 JOB_STATUS_WAITING = "waiting"
1524 JOB_STATUS_CANCELING = "canceling"
1525 JOB_STATUS_RUNNING = "running"
1526 JOB_STATUS_CANCELED = "canceled"
1527 JOB_STATUS_SUCCESS = "success"
1528 JOB_STATUS_ERROR = "error"
1529 JOBS_PENDING = frozenset([
1530   JOB_STATUS_QUEUED,
1531   JOB_STATUS_WAITING,
1532   JOB_STATUS_CANCELING,
1533   ])
1534 JOBS_FINALIZED = frozenset([
1535   JOB_STATUS_CANCELED,
1536   JOB_STATUS_SUCCESS,
1537   JOB_STATUS_ERROR,
1538   ])
1539 JOB_STATUS_ALL = frozenset([
1540   JOB_STATUS_RUNNING,
1541   ]) | JOBS_PENDING | JOBS_FINALIZED
1542
1543 # OpCode status
1544 # not yet finalized
1545 OP_STATUS_QUEUED = "queued"
1546 OP_STATUS_WAITING = "waiting"
1547 OP_STATUS_CANCELING = "canceling"
1548 OP_STATUS_RUNNING = "running"
1549 # finalized
1550 OP_STATUS_CANCELED = "canceled"
1551 OP_STATUS_SUCCESS = "success"
1552 OP_STATUS_ERROR = "error"
1553 OPS_FINALIZED = frozenset([
1554   OP_STATUS_CANCELED,
1555   OP_STATUS_SUCCESS,
1556   OP_STATUS_ERROR,
1557   ])
1558
1559 # OpCode priority
1560 OP_PRIO_LOWEST = +19
1561 OP_PRIO_HIGHEST = -20
1562
1563 OP_PRIO_LOW = +10
1564 OP_PRIO_NORMAL = 0
1565 OP_PRIO_HIGH = -10
1566
1567 OP_PRIO_SUBMIT_VALID = frozenset([
1568   OP_PRIO_LOW,
1569   OP_PRIO_NORMAL,
1570   OP_PRIO_HIGH,
1571   ])
1572
1573 OP_PRIO_DEFAULT = OP_PRIO_NORMAL
1574
1575 # Lock recalculate mode
1576 LOCKS_REPLACE = "replace"
1577 LOCKS_APPEND = "append"
1578
1579 # Lock timeout (sum) before we should go into blocking acquire (still
1580 # can be reset by priority change); computed as max time (10 hours)
1581 # before we should actually go into blocking acquire given that we
1582 # start from default priority level; in seconds
1583 # TODO
1584 LOCK_ATTEMPTS_TIMEOUT = 10 * 3600 / (OP_PRIO_DEFAULT - OP_PRIO_HIGHEST)
1585 LOCK_ATTEMPTS_MAXWAIT = 15.0
1586 LOCK_ATTEMPTS_MINWAIT = 1.0
1587
1588 # Execution log types
1589 ELOG_MESSAGE = "message"
1590 ELOG_REMOTE_IMPORT = "remote-import"
1591 ELOG_JQUEUE_TEST = "jqueue-test"
1592
1593 # /etc/hosts modification
1594 ETC_HOSTS_ADD = "add"
1595 ETC_HOSTS_REMOVE = "remove"
1596
1597 # Job queue test
1598 JQT_MSGPREFIX = "TESTMSG="
1599 JQT_EXPANDNAMES = "expandnames"
1600 JQT_EXEC = "exec"
1601 JQT_LOGMSG = "logmsg"
1602 JQT_STARTMSG = "startmsg"
1603 JQT_ALL = frozenset([
1604   JQT_EXPANDNAMES,
1605   JQT_EXEC,
1606   JQT_LOGMSG,
1607   JQT_STARTMSG,
1608   ])
1609
1610 # Query resources
1611 QR_CLUSTER = "cluster"
1612 QR_INSTANCE = "instance"
1613 QR_NODE = "node"
1614 QR_LOCK = "lock"
1615 QR_GROUP = "group"
1616 QR_OS = "os"
1617 QR_JOB = "job"
1618 QR_EXPORT = "export"
1619 QR_NETWORK = "network"
1620
1621 #: List of resources which can be queried using L{opcodes.OpQuery}
1622 QR_VIA_OP = frozenset([
1623   QR_CLUSTER,
1624   QR_INSTANCE,
1625   QR_NODE,
1626   QR_GROUP,
1627   QR_OS,
1628   QR_EXPORT,
1629   QR_NETWORK,
1630   ])
1631
1632 #: List of resources which can be queried using Local UniX Interface
1633 QR_VIA_LUXI = QR_VIA_OP.union([
1634   QR_LOCK,
1635   QR_JOB,
1636   ])
1637
1638 #: List of resources which can be queried using RAPI
1639 QR_VIA_RAPI = QR_VIA_LUXI
1640
1641 # Query field types
1642 QFT_UNKNOWN = "unknown"
1643 QFT_TEXT = "text"
1644 QFT_BOOL = "bool"
1645 QFT_NUMBER = "number"
1646 QFT_UNIT = "unit"
1647 QFT_TIMESTAMP = "timestamp"
1648 QFT_OTHER = "other"
1649
1650 #: All query field types
1651 QFT_ALL = frozenset([
1652   QFT_UNKNOWN,
1653   QFT_TEXT,
1654   QFT_BOOL,
1655   QFT_NUMBER,
1656   QFT_UNIT,
1657   QFT_TIMESTAMP,
1658   QFT_OTHER,
1659   ])
1660
1661 # Query result field status (don't change or reuse values as they're used by
1662 # clients)
1663 #: Normal field status
1664 RS_NORMAL = 0
1665 #: Unknown field
1666 RS_UNKNOWN = 1
1667 #: No data (e.g. RPC error), can be used instead of L{RS_OFFLINE}
1668 RS_NODATA = 2
1669 #: Value unavailable/unsupported for item; if this field is supported
1670 #: but we cannot get the data for the moment, RS_NODATA or
1671 #: RS_OFFLINE should be used
1672 RS_UNAVAIL = 3
1673 #: Resource marked offline
1674 RS_OFFLINE = 4
1675
1676 RS_ALL = frozenset([
1677   RS_NORMAL,
1678   RS_UNKNOWN,
1679   RS_NODATA,
1680   RS_UNAVAIL,
1681   RS_OFFLINE,
1682   ])
1683
1684 #: Dictionary with special field cases and their verbose/terse formatting
1685 RSS_DESCRIPTION = {
1686   RS_UNKNOWN: ("(unknown)", "??"),
1687   RS_NODATA: ("(nodata)", "?"),
1688   RS_OFFLINE: ("(offline)", "*"),
1689   RS_UNAVAIL: ("(unavail)", "-"),
1690   }
1691
1692 # max dynamic devices
1693 MAX_NICS = 8
1694 MAX_DISKS = 16
1695
1696 # SSCONF file prefix
1697 SSCONF_FILEPREFIX = "ssconf_"
1698 # SSCONF keys
1699 SS_CLUSTER_NAME = "cluster_name"
1700 SS_CLUSTER_TAGS = "cluster_tags"
1701 SS_FILE_STORAGE_DIR = "file_storage_dir"
1702 SS_SHARED_FILE_STORAGE_DIR = "shared_file_storage_dir"
1703 SS_MASTER_CANDIDATES = "master_candidates"
1704 SS_MASTER_CANDIDATES_IPS = "master_candidates_ips"
1705 SS_MASTER_IP = "master_ip"
1706 SS_MASTER_NETDEV = "master_netdev"
1707 SS_MASTER_NETMASK = "master_netmask"
1708 SS_MASTER_NODE = "master_node"
1709 SS_NODE_LIST = "node_list"
1710 SS_NODE_PRIMARY_IPS = "node_primary_ips"
1711 SS_NODE_SECONDARY_IPS = "node_secondary_ips"
1712 SS_OFFLINE_NODES = "offline_nodes"
1713 SS_ONLINE_NODES = "online_nodes"
1714 SS_PRIMARY_IP_FAMILY = "primary_ip_family"
1715 SS_INSTANCE_LIST = "instance_list"
1716 SS_RELEASE_VERSION = "release_version"
1717 SS_HYPERVISOR_LIST = "hypervisor_list"
1718 SS_MAINTAIN_NODE_HEALTH = "maintain_node_health"
1719 SS_UID_POOL = "uid_pool"
1720 SS_NODEGROUPS = "nodegroups"
1721 SS_NETWORKS = "networks"
1722
1723 SS_FILE_PERMS = 0444
1724
1725 # cluster wide default parameters
1726 DEFAULT_ENABLED_HYPERVISOR = HT_XEN_PVM
1727
1728 HVC_DEFAULTS = {
1729   HT_XEN_PVM: {
1730     HV_USE_BOOTLOADER: False,
1731     HV_BOOTLOADER_PATH: XEN_BOOTLOADER,
1732     HV_BOOTLOADER_ARGS: "",
1733     HV_KERNEL_PATH: XEN_KERNEL,
1734     HV_INITRD_PATH: "",
1735     HV_ROOT_PATH: "/dev/sda1",
1736     HV_KERNEL_ARGS: "ro",
1737     HV_MIGRATION_PORT: 8002,
1738     HV_MIGRATION_MODE: HT_MIGRATION_LIVE,
1739     HV_BLOCKDEV_PREFIX: "sd",
1740     HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
1741     HV_CPU_MASK: CPU_PINNING_ALL,
1742     HV_CPU_CAP: 0,
1743     HV_CPU_WEIGHT: 256,
1744     },
1745   HT_XEN_HVM: {
1746     HV_BOOT_ORDER: "cd",
1747     HV_CDROM_IMAGE_PATH: "",
1748     HV_NIC_TYPE: HT_NIC_RTL8139,
1749     HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
1750     HV_VNC_BIND_ADDRESS: IP4_ADDRESS_ANY,
1751     HV_VNC_PASSWORD_FILE: pathutils.VNC_PASSWORD_FILE,
1752     HV_ACPI: True,
1753     HV_PAE: True,
1754     HV_KERNEL_PATH: "/usr/lib/xen/boot/hvmloader",
1755     HV_DEVICE_MODEL: "/usr/lib/xen/bin/qemu-dm",
1756     HV_MIGRATION_PORT: 8002,
1757     HV_MIGRATION_MODE: HT_MIGRATION_NONLIVE,
1758     HV_USE_LOCALTIME: False,
1759     HV_BLOCKDEV_PREFIX: "hd",
1760     HV_PASSTHROUGH: "",
1761     HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
1762     HV_CPU_MASK: CPU_PINNING_ALL,
1763     HV_CPU_CAP: 0,
1764     HV_CPU_WEIGHT: 256,
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     HV_CPU_TYPE: "",
1813     },
1814   HT_FAKE: {},
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: "",
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   LD_BLOCKDEV: {},
1869   LD_RBD: {
1870     LDP_POOL: "rbd"
1871     },
1872   }
1873
1874 # readability shortcuts
1875 _LV_DEFAULTS = DISK_LD_DEFAULTS[LD_LV]
1876 _DRBD_DEFAULTS = DISK_LD_DEFAULTS[LD_DRBD8]
1877
1878 DISK_DT_DEFAULTS = {
1879   DT_PLAIN: {
1880     LV_STRIPES: DISK_LD_DEFAULTS[LD_LV][LDP_STRIPES],
1881     },
1882   DT_DRBD8: {
1883     DRBD_RESYNC_RATE: _DRBD_DEFAULTS[LDP_RESYNC_RATE],
1884     DRBD_DATA_STRIPES: _LV_DEFAULTS[LDP_STRIPES],
1885     DRBD_META_STRIPES: _LV_DEFAULTS[LDP_STRIPES],
1886     DRBD_DISK_BARRIERS: _DRBD_DEFAULTS[LDP_BARRIERS],
1887     DRBD_META_BARRIERS: _DRBD_DEFAULTS[LDP_NO_META_FLUSH],
1888     DRBD_DEFAULT_METAVG: _DRBD_DEFAULTS[LDP_DEFAULT_METAVG],
1889     DRBD_DISK_CUSTOM: _DRBD_DEFAULTS[LDP_DISK_CUSTOM],
1890     DRBD_NET_CUSTOM: _DRBD_DEFAULTS[LDP_NET_CUSTOM],
1891     DRBD_DYNAMIC_RESYNC: _DRBD_DEFAULTS[LDP_DYNAMIC_RESYNC],
1892     DRBD_PLAN_AHEAD: _DRBD_DEFAULTS[LDP_PLAN_AHEAD],
1893     DRBD_FILL_TARGET: _DRBD_DEFAULTS[LDP_FILL_TARGET],
1894     DRBD_DELAY_TARGET: _DRBD_DEFAULTS[LDP_DELAY_TARGET],
1895     DRBD_MAX_RATE: _DRBD_DEFAULTS[LDP_MAX_RATE],
1896     DRBD_MIN_RATE: _DRBD_DEFAULTS[LDP_MIN_RATE],
1897     },
1898   DT_DISKLESS: {},
1899   DT_FILE: {},
1900   DT_SHARED_FILE: {},
1901   DT_BLOCK: {},
1902   DT_RBD: {
1903     RBD_POOL: DISK_LD_DEFAULTS[LD_RBD][LDP_POOL]
1904     },
1905   }
1906
1907 # we don't want to export the shortcuts
1908 del _LV_DEFAULTS, _DRBD_DEFAULTS
1909
1910 NICC_DEFAULTS = {
1911   NIC_MODE: NIC_MODE_BRIDGED,
1912   NIC_LINK: DEFAULT_BRIDGE,
1913   }
1914
1915 # All of the following values are quite arbitrarily - there are no
1916 # "good" defaults, these must be customised per-site
1917 IPOLICY_DEFAULTS = {
1918   ISPECS_MIN: {
1919     ISPEC_MEM_SIZE: 128,
1920     ISPEC_CPU_COUNT: 1,
1921     ISPEC_DISK_COUNT: 1,
1922     ISPEC_DISK_SIZE: 1024,
1923     ISPEC_NIC_COUNT: 1,
1924     ISPEC_SPINDLE_USE: 1,
1925     },
1926   ISPECS_MAX: {
1927     ISPEC_MEM_SIZE: 32768,
1928     ISPEC_CPU_COUNT: 8,
1929     ISPEC_DISK_COUNT: MAX_DISKS,
1930     ISPEC_DISK_SIZE: 1024 * 1024,
1931     ISPEC_NIC_COUNT: MAX_NICS,
1932     ISPEC_SPINDLE_USE: 12,
1933     },
1934   ISPECS_STD: {
1935     ISPEC_MEM_SIZE: 128,
1936     ISPEC_CPU_COUNT: 1,
1937     ISPEC_DISK_COUNT: 1,
1938     ISPEC_DISK_SIZE: 1024,
1939     ISPEC_NIC_COUNT: 1,
1940     ISPEC_SPINDLE_USE: 1,
1941     },
1942   IPOLICY_DTS: DISK_TEMPLATES,
1943   IPOLICY_VCPU_RATIO: 4.0,
1944   IPOLICY_SPINDLE_RATIO: 32.0,
1945   }
1946
1947 MASTER_POOL_SIZE_DEFAULT = 10
1948
1949 CONFD_PROTOCOL_VERSION = 1
1950
1951 CONFD_REQ_PING = 0
1952 CONFD_REQ_NODE_ROLE_BYNAME = 1
1953 CONFD_REQ_NODE_PIP_BY_INSTANCE_IP = 2
1954 CONFD_REQ_CLUSTER_MASTER = 3
1955 CONFD_REQ_NODE_PIP_LIST = 4
1956 CONFD_REQ_MC_PIP_LIST = 5
1957 CONFD_REQ_INSTANCES_IPS_LIST = 6
1958 CONFD_REQ_NODE_DRBD = 7
1959
1960 # Confd request query fields. These are used to narrow down queries.
1961 # These must be strings rather than integers, because json-encoding
1962 # converts them to strings anyway, as they're used as dict-keys.
1963 CONFD_REQQ_LINK = "0"
1964 CONFD_REQQ_IP = "1"
1965 CONFD_REQQ_IPLIST = "2"
1966 CONFD_REQQ_FIELDS = "3"
1967
1968 CONFD_REQFIELD_NAME = "0"
1969 CONFD_REQFIELD_IP = "1"
1970 CONFD_REQFIELD_MNODE_PIP = "2"
1971
1972 CONFD_REQS = frozenset([
1973   CONFD_REQ_PING,
1974   CONFD_REQ_NODE_ROLE_BYNAME,
1975   CONFD_REQ_NODE_PIP_BY_INSTANCE_IP,
1976   CONFD_REQ_CLUSTER_MASTER,
1977   CONFD_REQ_NODE_PIP_LIST,
1978   CONFD_REQ_MC_PIP_LIST,
1979   CONFD_REQ_INSTANCES_IPS_LIST,
1980   CONFD_REQ_NODE_DRBD,
1981   ])
1982
1983 CONFD_REPL_STATUS_OK = 0
1984 CONFD_REPL_STATUS_ERROR = 1
1985 CONFD_REPL_STATUS_NOTIMPLEMENTED = 2
1986
1987 CONFD_REPL_STATUSES = frozenset([
1988   CONFD_REPL_STATUS_OK,
1989   CONFD_REPL_STATUS_ERROR,
1990   CONFD_REPL_STATUS_NOTIMPLEMENTED,
1991   ])
1992
1993 (CONFD_NODE_ROLE_MASTER,
1994  CONFD_NODE_ROLE_CANDIDATE,
1995  CONFD_NODE_ROLE_OFFLINE,
1996  CONFD_NODE_ROLE_DRAINED,
1997  CONFD_NODE_ROLE_REGULAR,
1998  ) = range(5)
1999
2000 # A few common errors for confd
2001 CONFD_ERROR_UNKNOWN_ENTRY = 1
2002 CONFD_ERROR_INTERNAL = 2
2003 CONFD_ERROR_ARGUMENT = 3
2004
2005 # Each request is "salted" by the current timestamp.
2006 # This constants decides how many seconds of skew to accept.
2007 # TODO: make this a default and allow the value to be more configurable
2008 CONFD_MAX_CLOCK_SKEW = 2 * NODE_MAX_CLOCK_SKEW
2009
2010 # When we haven't reloaded the config for more than this amount of seconds, we
2011 # force a test to see if inotify is betraying us.
2012 CONFD_CONFIG_RELOAD_TIMEOUT = 60
2013
2014 # If we receive more than one update in this amount of seconds, we move to
2015 # polling every RATELIMIT seconds, rather than relying on inotify, to be able
2016 # to serve more requests.
2017 CONFD_CONFIG_RELOAD_RATELIMIT = 2
2018
2019 # Magic number prepended to all confd queries.
2020 # This allows us to distinguish different types of confd protocols and handle
2021 # them. For example by changing this we can move the whole payload to be
2022 # compressed, or move away from json.
2023 CONFD_MAGIC_FOURCC = "plj0"
2024
2025 # By default a confd request is sent to the minimum between this number and all
2026 # MCs. 6 was chosen because even in the case of a disastrous 50% response rate,
2027 # we should have enough answers to be able to compare more than one.
2028 CONFD_DEFAULT_REQ_COVERAGE = 6
2029
2030 # Timeout in seconds to expire pending query request in the confd client
2031 # library. We don't actually expect any answer more than 10 seconds after we
2032 # sent a request.
2033 CONFD_CLIENT_EXPIRE_TIMEOUT = 10
2034
2035 # Maximum UDP datagram size.
2036 # On IPv4: 64K - 20 (ip header size) - 8 (udp header size) = 65507
2037 # On IPv6: 64K - 40 (ip6 header size) - 8 (udp header size) = 65487
2038 #   (assuming we can't use jumbo frames)
2039 # We just set this to 60K, which should be enough
2040 MAX_UDP_DATA_SIZE = 61440
2041
2042 # User-id pool minimum/maximum acceptable user-ids.
2043 UIDPOOL_UID_MIN = 0
2044 UIDPOOL_UID_MAX = 2 ** 32 - 1 # Assuming 32 bit user-ids
2045
2046 # Name or path of the pgrep command
2047 PGREP = "pgrep"
2048
2049 # Name of the node group that gets created at cluster init or upgrade
2050 INITIAL_NODE_GROUP_NAME = "default"
2051
2052 # Possible values for NodeGroup.alloc_policy
2053 ALLOC_POLICY_PREFERRED = "preferred"
2054 ALLOC_POLICY_LAST_RESORT = "last_resort"
2055 ALLOC_POLICY_UNALLOCABLE = "unallocable"
2056 VALID_ALLOC_POLICIES = [
2057   ALLOC_POLICY_PREFERRED,
2058   ALLOC_POLICY_LAST_RESORT,
2059   ALLOC_POLICY_UNALLOCABLE,
2060   ]
2061
2062 # Temporary external/shared storage parameters
2063 BLOCKDEV_DRIVER_MANUAL = "manual"
2064
2065 # qemu-img path, required for ovfconverter
2066 QEMUIMG_PATH = _autoconf.QEMUIMG_PATH
2067
2068 # Whether htools was enabled at compilation time
2069 HTOOLS = _autoconf.HTOOLS
2070 # The hail iallocator
2071 IALLOC_HAIL = "hail"
2072
2073 # Fake opcodes for functions that have hooks attached to them via
2074 # backend.RunLocalHooks
2075 FAKE_OP_MASTER_TURNUP = "OP_CLUSTER_IP_TURNUP"
2076 FAKE_OP_MASTER_TURNDOWN = "OP_CLUSTER_IP_TURNDOWN"
2077
2078 # SSH key types
2079 SSHK_RSA = "rsa"
2080 SSHK_DSA = "dsa"
2081 SSHK_ALL = frozenset([SSHK_RSA, SSHK_DSA])
2082
2083 # SSH authorized key types
2084 SSHAK_RSA = "ssh-rsa"
2085 SSHAK_DSS = "ssh-dss"
2086 SSHAK_ALL = frozenset([SSHAK_RSA, SSHAK_DSS])
2087
2088 # SSH setup
2089 SSHS_CLUSTER_NAME = "cluster_name"
2090 SSHS_SSH_HOST_KEY = "ssh_host_key"
2091 SSHS_SSH_ROOT_KEY = "ssh_root_key"
2092 SSHS_NODE_DAEMON_CERTIFICATE = "node_daemon_certificate"
2093
2094 #: Key files for SSH daemon
2095 SSH_DAEMON_KEYFILES = {
2096   SSHK_RSA: (pathutils.SSH_HOST_RSA_PRIV, pathutils.SSH_HOST_RSA_PUB),
2097   SSHK_DSA: (pathutils.SSH_HOST_DSA_PRIV, pathutils.SSH_HOST_DSA_PUB),
2098   }
2099
2100 # Do not re-export imported modules
2101 del re, _vcsversion, _autoconf, socket, pathutils