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

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