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

   1 #
   2 #
   3
   4 # Copyright (C) 2006, 2007 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 from ganeti import _autoconf
  25
  26 # various versions
  27 PROTOCOL_VERSION = 20
  28 RELEASE_VERSION = _autoconf.PACKAGE_VERSION
  29 OS_API_V10 = 10
  30 OS_API_V15 = 15
  31 OS_API_VERSIONS = frozenset([OS_API_V10, OS_API_V15])
  32 EXPORT_VERSION = 0
  33 RAPI_VERSION = 2
  34
  35
  36 # Format for CONFIG_VERSION:
  37 #   01 03 0123 = 01030123
  38 #   ^^ ^^ ^^^^
  39 #   |  |  + Configuration version/revision
  40 #   |  + Minor version
  41 #   + Major version
  42 #
  43 # It stored as an integer. Make sure not to write an octal number.
  44
  45 # BuildVersion and SplitVersion must be in here because we can't import other
  46 # modules. The cfgupgrade tool must be able to read and write version numbers
  47 # and thus requires these functions. To avoid code duplication, they're kept in
  48 # here.
  49
  50 def BuildVersion(major, minor, revision):
  51   """Calculates int version number from major, minor and revision numbers.
  52
  53   Returns: int representing version number
  54
  55   """
  56   assert isinstance(major, int)
  57   assert isinstance(minor, int)
  58   assert isinstance(revision, int)
  59   return (1000000 * major +
  60             10000 * minor +
  61                 1 * revision)
  62
  63
  64 def SplitVersion(version):
  65   """Splits version number stored in an int.
  66
  67   Returns: tuple; (major, minor, revision)
  68
  69   """
  70   assert isinstance(version, int)
  71
  72   (major, remainder) = divmod(version, 1000000)
  73   (minor, revision) = divmod(remainder, 10000)
  74
  75   return (major, minor, revision)
  76
  77
  78 CONFIG_MAJOR = int(_autoconf.VERSION_MAJOR)
  79 CONFIG_MINOR = int(_autoconf.VERSION_MINOR)
  80 CONFIG_REVISION = 0
  81 CONFIG_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, CONFIG_REVISION)
  82
  83 # file paths
  84 DATA_DIR = _autoconf.LOCALSTATEDIR + "/lib/ganeti"
  85 RUN_DIR = _autoconf.LOCALSTATEDIR + "/run"
  86 RUN_GANETI_DIR = RUN_DIR + "/ganeti"
  87 BDEV_CACHE_DIR = RUN_GANETI_DIR + "/bdev-cache"
  88 DISK_LINKS_DIR = RUN_GANETI_DIR + "/instance-disks"
  89 RUN_DIRS_MODE = 0755
  90 SOCKET_DIR = RUN_GANETI_DIR + "/socket"
  91 SOCKET_DIR_MODE = 0700
  92 # keep RUN_GANETI_DIR first here, to make sure all get created when the node
  93 # daemon is started (this takes care of RUN_DIR being tmpfs)
  94 SUB_RUN_DIRS = [ RUN_GANETI_DIR, BDEV_CACHE_DIR, DISK_LINKS_DIR ]
  95 LOCK_DIR = _autoconf.LOCALSTATEDIR + "/lock"
  96 SSCONF_LOCK_FILE = LOCK_DIR + "/ganeti-ssconf.lock"
  97 CLUSTER_CONF_FILE = DATA_DIR + "/config.data"
  98 SSL_CERT_FILE = DATA_DIR + "/server.pem"
  99 RAPI_CERT_FILE = DATA_DIR + "/rapi.pem"
 100 HMAC_CLUSTER_KEY = DATA_DIR + "/hmac.key"
 101 WATCHER_STATEFILE = DATA_DIR + "/watcher.data"
 102 INSTANCE_UPFILE = RUN_GANETI_DIR + "/instance-status"
 103 SSH_KNOWN_HOSTS_FILE = DATA_DIR + "/known_hosts"
 104 RAPI_USERS_FILE = DATA_DIR + "/rapi_users"
 105 QUEUE_DIR = DATA_DIR + "/queue"
 106 ETC_HOSTS = "/etc/hosts"
 107 DEFAULT_FILE_STORAGE_DIR = _autoconf.FILE_STORAGE_DIR
 108 SYSCONFDIR = _autoconf.SYSCONFDIR
 109
 110 MASTER_SOCKET = SOCKET_DIR + "/ganeti-master"
 111
 112 NODE_INITD_SCRIPT = _autoconf.SYSCONFDIR + "/init.d/ganeti"
 113
 114 NODED = "ganeti-noded"
 115 CONFD = "ganeti-confd"
 116 RAPI = "ganeti-rapi"
 117 MASTERD = "ganeti-masterd"
 118
 119 MULTITHREADED_DAEMONS = frozenset([MASTERD])
 120
 121 DAEMONS_SSL = {
 122   # daemon-name: (default-cert-path, default-key-path)
 123   NODED: (SSL_CERT_FILE, SSL_CERT_FILE),
 124   RAPI: (RAPI_CERT_FILE, RAPI_CERT_FILE),
 125 }
 126
 127 DAEMONS_PORTS = {
 128   # daemon-name: ("proto", "default-port")
 129   NODED: ("tcp", 1811),
 130   CONFD: ("udp", 1814),
 131   RAPI: ("tcp", 5080),
 132 }
 133 DEFAULT_NODED_PORT = DAEMONS_PORTS[NODED][1]
 134 DEFAULT_CONFD_PORT = DAEMONS_PORTS[CONFD][1]
 135 DEFAULT_RAPI_PORT = DAEMONS_PORTS[RAPI][1]
 136
 137 FIRST_DRBD_PORT = 11000
 138 LAST_DRBD_PORT = 14999
 139 MASTER_SCRIPT = "ganeti-master"
 140
 141 LOG_DIR = _autoconf.LOCALSTATEDIR + "/log/ganeti/"
 142 DAEMONS_LOGFILES = {
 143  # "daemon-name": "logfile"
 144  NODED: LOG_DIR + "node-daemon.log",
 145  CONFD: LOG_DIR + "conf-daemon.log",
 146  RAPI: LOG_DIR + "rapi-daemon.log",
 147  MASTERD: LOG_DIR + "master-daemon.log",
 148 }
 149 LOG_OS_DIR = LOG_DIR + "os"
 150 LOG_WATCHER = LOG_DIR + "watcher.log"
 151 LOG_COMMANDS = LOG_DIR + "commands.log"
 152 LOG_BURNIN = LOG_DIR + "burnin.log"
 153
 154 OS_SEARCH_PATH = _autoconf.OS_SEARCH_PATH
 155 EXPORT_DIR = _autoconf.EXPORT_DIR
 156
 157 EXPORT_CONF_FILE = "config.ini"
 158
 159 XEN_KERNEL = _autoconf.XEN_KERNEL
 160 XEN_INITRD = _autoconf.XEN_INITRD
 161
 162 KVM_PATH = _autoconf.KVM_PATH
 163 SOCAT_PATH = _autoconf.SOCAT_PATH
 164 KVM_MIGRATION_PORT = _autoconf.KVM_MIGRATION_PORT
 165
 166 VALUE_DEFAULT = "default"
 167 VALUE_AUTO = "auto"
 168 VALUE_GENERATE = "generate"
 169 VALUE_NONE = "none"
 170 VALUE_TRUE = "true"
 171 VALUE_FALSE = "false"
 172
 173 # hooks-related constants
 174 HOOKS_BASE_DIR = _autoconf.SYSCONFDIR + "/ganeti/hooks"
 175 HOOKS_PHASE_PRE = "pre"
 176 HOOKS_PHASE_POST = "post"
 177 HOOKS_NAME_CFGUPDATE = "config-update"
 178 HOOKS_VERSION = 2
 179
 180 # hooks subject type (what object type does the LU deal with)
 181 HTYPE_CLUSTER = "CLUSTER"
 182 HTYPE_NODE = "NODE"
 183 HTYPE_INSTANCE = "INSTANCE"
 184
 185 HKR_SKIP = 0
 186 HKR_FAIL = 1
 187 HKR_SUCCESS = 2
 188
 189 # Storage types
 190 ST_FILE = "file"
 191 ST_LVM_PV = "lvm-pv"
 192 ST_LVM_VG = "lvm-vg"
 193
 194 # Storage fields
 195 SF_NAME = "name"
 196 SF_SIZE = "size"
 197 SF_FREE = "free"
 198 SF_USED = "used"
 199 SF_ALLOCATABLE = "allocatable"
 200
 201 # Available fields per storage type
 202 VALID_STORAGE_FIELDS = {
 203   ST_FILE: frozenset([SF_NAME, SF_USED, SF_FREE]),
 204   ST_LVM_PV: frozenset([SF_NAME, SF_SIZE, SF_USED, SF_FREE, SF_ALLOCATABLE]),
 205   ST_LVM_VG: frozenset([SF_NAME, SF_SIZE]),
 206   }
 207
 208 MODIFIABLE_STORAGE_FIELDS = {
 209   ST_LVM_PV: frozenset([SF_ALLOCATABLE]),
 210   }
 211
 212 # Local disk status
 213 # Note: Code depends on LDS_OKAY < LDS_UNKNOWN < LDS_FAULTY
 214 (LDS_OKAY,
 215  LDS_UNKNOWN,
 216  LDS_FAULTY) = range(1, 4)
 217
 218 # disk template types
 219 DT_DISKLESS = "diskless"
 220 DT_PLAIN = "plain"
 221 DT_DRBD8 = "drbd"
 222 DT_FILE = "file"
 223
 224 # the set of network-mirrored disk templates
 225 DTS_NET_MIRROR = frozenset([DT_DRBD8])
 226
 227 # the set of non-lvm-based disk templates
 228 DTS_NOT_LVM = frozenset([DT_DISKLESS, DT_FILE])
 229
 230 # logical disk types
 231 LD_LV = "lvm"
 232 LD_DRBD8 = "drbd8"
 233 LD_FILE = "file"
 234 LDS_BLOCK = frozenset([LD_LV, LD_DRBD8])
 235
 236 # drbd constants
 237 DRBD_HMAC_ALG = "md5"
 238 DRBD_NET_PROTOCOL = "C"
 239
 240 # file backend driver
 241 FD_LOOP = "loop"
 242 FD_BLKTAP = "blktap"
 243
 244 # the set of drbd-like disk types
 245 LDS_DRBD = frozenset([LD_DRBD8])
 246
 247 # disk access mode
 248 DISK_RDONLY = "ro"
 249 DISK_RDWR = "rw"
 250 DISK_ACCESS_SET = frozenset([DISK_RDONLY, DISK_RDWR])
 251
 252 # disk replacement mode
 253 REPLACE_DISK_PRI = "replace_on_primary"    # replace disks on primary
 254 REPLACE_DISK_SEC = "replace_on_secondary"  # replace disks on secondary
 255 REPLACE_DISK_CHG = "replace_new_secondary" # change secondary node
 256
 257 # lock recalculate mode
 258 LOCKS_REPLACE = 'replace'
 259 LOCKS_APPEND = 'append'
 260
 261 # instance creation modes
 262 INSTANCE_CREATE = "create"
 263 INSTANCE_IMPORT = "import"
 264
 265 DISK_TEMPLATES = frozenset([DT_DISKLESS, DT_PLAIN,
 266                             DT_DRBD8, DT_FILE])
 267
 268 FILE_DRIVER = frozenset([FD_LOOP, FD_BLKTAP])
 269
 270 # import/export config options
 271 INISECT_EXP = "export"
 272 INISECT_INS = "instance"
 273
 274 # dynamic device modification
 275
 276 DDM_ADD = 'add'
 277 DDM_REMOVE = 'remove'
 278
 279 # common exit codes
 280 EXIT_SUCCESS = 0
 281 EXIT_FAILURE = 1
 282 EXIT_NOTCLUSTER = 5
 283 EXIT_NOTMASTER = 11
 284 EXIT_NODESETUP_ERROR = 12
 285 EXIT_CONFIRMATION = 13 # need user confirmation
 286 EXIT_NOTCANDIDATE = 14
 287
 288 # tags
 289 TAG_CLUSTER = "cluster"
 290 TAG_NODE = "node"
 291 TAG_INSTANCE = "instance"
 292 MAX_TAG_LEN = 128
 293 MAX_TAGS_PER_OBJ = 4096
 294
 295 # others
 296 DEFAULT_BRIDGE = "xen-br0"
 297 SYNC_SPEED = 60 * 1024
 298 LOCALHOST_IP_ADDRESS = "127.0.0.1"
 299 TCP_PING_TIMEOUT = 10
 300 GANETI_RUNAS = "root"
 301 DEFAULT_VG = "xenvg"
 302 BIND_ADDRESS_GLOBAL = "0.0.0.0"
 303 MIN_VG_SIZE = 20480
 304 DEFAULT_MAC_PREFIX = "aa:00:00"
 305 LVM_STRIPECOUNT = _autoconf.LVM_STRIPECOUNT
 306
 307 # RPC constants
 308 (RPC_ENCODING_NONE,
 309  RPC_ENCODING_ZLIB_BASE64) = range(2)
 310
 311 # os related constants
 312 OS_SCRIPT_CREATE = 'create'
 313 OS_SCRIPT_IMPORT = 'import'
 314 OS_SCRIPT_EXPORT = 'export'
 315 OS_SCRIPT_RENAME = 'rename'
 316 OS_SCRIPTS = frozenset([OS_SCRIPT_CREATE, OS_SCRIPT_IMPORT,
 317                         OS_SCRIPT_EXPORT, OS_SCRIPT_RENAME])
 318
 319 # ssh constants
 320 SSH_INITD_SCRIPT = _autoconf.SSH_INITD_SCRIPT
 321 SSH_CONFIG_DIR = "/etc/ssh/"
 322 SSH_HOST_DSA_PRIV = SSH_CONFIG_DIR + "ssh_host_dsa_key"
 323 SSH_HOST_DSA_PUB = SSH_HOST_DSA_PRIV + ".pub"
 324 SSH_HOST_RSA_PRIV = SSH_CONFIG_DIR + "ssh_host_rsa_key"
 325 SSH_HOST_RSA_PUB = SSH_HOST_RSA_PRIV + ".pub"
 326 SSH = "ssh"
 327 SCP = "scp"
 328
 329 # reboot types
 330 INSTANCE_REBOOT_SOFT = "soft"
 331 INSTANCE_REBOOT_HARD = "hard"
 332 INSTANCE_REBOOT_FULL = "full"
 333
 334 REBOOT_TYPES = frozenset([INSTANCE_REBOOT_SOFT,
 335                           INSTANCE_REBOOT_HARD,
 336                           INSTANCE_REBOOT_FULL])
 337
 338 VTYPE_STRING = 'string'
 339 VTYPE_BOOL = 'bool'
 340 VTYPE_SIZE = 'size' # size, in MiBs
 341 VTYPE_INT = 'int'
 342 ENFORCEABLE_TYPES = frozenset([
 343                       VTYPE_STRING,
 344                       VTYPE_BOOL,
 345                       VTYPE_SIZE,
 346                       VTYPE_INT,
 347                       ])
 348
 349 # HV parameter names (global namespace)
 350 HV_BOOT_ORDER = "boot_order"
 351 HV_CDROM_IMAGE_PATH = "cdrom_image_path"
 352 HV_NIC_TYPE = "nic_type"
 353 HV_DISK_TYPE = "disk_type"
 354 HV_VNC_BIND_ADDRESS = "vnc_bind_address"
 355 HV_VNC_TLS = "vnc_tls"
 356 HV_VNC_X509 = "vnc_x509_path"
 357 HV_VNC_X509_VERIFY = "vnc_x509_verify"
 358 HV_ACPI = "acpi"
 359 HV_PAE = "pae"
 360 HV_KERNEL_ARGS = "kernel_args"
 361 HV_KERNEL_PATH = "kernel_path"
 362 HV_INITRD_PATH = "initrd_path"
 363 HV_ROOT_PATH = "root_path"
 364 HV_SERIAL_CONSOLE = "serial_console"
 365 HV_USB_MOUSE = "usb_mouse"
 366 HV_DEVICE_MODEL = "device_model"
 367 HV_INIT_SCRIPT = "init_script"
 368
 369 HVS_PARAMETER_TYPES = {
 370   HV_BOOT_ORDER: VTYPE_STRING,
 371   HV_CDROM_IMAGE_PATH: VTYPE_STRING,
 372   HV_NIC_TYPE: VTYPE_STRING,
 373   HV_DISK_TYPE: VTYPE_STRING,
 374   HV_VNC_BIND_ADDRESS: VTYPE_STRING,
 375   HV_VNC_TLS: VTYPE_BOOL,
 376   HV_VNC_X509: VTYPE_STRING,
 377   HV_VNC_X509_VERIFY: VTYPE_BOOL,
 378   HV_ACPI: VTYPE_BOOL,
 379   HV_PAE: VTYPE_BOOL,
 380   HV_KERNEL_PATH: VTYPE_STRING,
 381   HV_KERNEL_ARGS: VTYPE_STRING,
 382   HV_INITRD_PATH: VTYPE_STRING,
 383   HV_ROOT_PATH: VTYPE_STRING,
 384   HV_SERIAL_CONSOLE: VTYPE_BOOL,
 385   HV_USB_MOUSE: VTYPE_STRING,
 386   HV_DEVICE_MODEL: VTYPE_STRING,
 387   HV_INIT_SCRIPT: VTYPE_STRING,
 388   }
 389
 390 HVS_PARAMETERS = frozenset(HVS_PARAMETER_TYPES.keys())
 391
 392 # BE parameter names
 393 BE_MEMORY = "memory"
 394 BE_VCPUS = "vcpus"
 395 BE_AUTO_BALANCE = "auto_balance"
 396
 397 BES_PARAMETER_TYPES = {
 398     BE_MEMORY: VTYPE_SIZE,
 399     BE_VCPUS: VTYPE_INT,
 400     BE_AUTO_BALANCE: VTYPE_BOOL,
 401     }
 402
 403 BES_PARAMETERS = frozenset(BES_PARAMETER_TYPES.keys())
 404
 405 # Instance Parameters Profile
 406 PP_DEFAULT = "default"
 407
 408 NIC_MODE = "mode"
 409 NIC_LINK = "link"
 410
 411 NIC_MODE_BRIDGED = "bridged"
 412 NIC_MODE_ROUTED = "routed"
 413
 414 NIC_VALID_MODES = frozenset([NIC_MODE_BRIDGED, NIC_MODE_ROUTED])
 415
 416 NICS_PARAMETER_TYPES = {
 417     NIC_MODE: VTYPE_STRING,
 418     NIC_LINK: VTYPE_STRING,
 419     }
 420
 421 NICS_PARAMETERS = frozenset(NICS_PARAMETER_TYPES.keys())
 422
 423 # Hypervisor constants
 424 HT_XEN_PVM = "xen-pvm"
 425 HT_FAKE = "fake"
 426 HT_XEN_HVM = "xen-hvm"
 427 HT_KVM = "kvm"
 428 HT_CHROOT = "chroot"
 429 HYPER_TYPES = frozenset([HT_XEN_PVM, HT_FAKE, HT_XEN_HVM, HT_KVM, HT_CHROOT])
 430 HTS_REQ_PORT = frozenset([HT_XEN_HVM, HT_KVM])
 431
 432 VNC_BASE_PORT = 5900
 433 VNC_PASSWORD_FILE = _autoconf.SYSCONFDIR + "/ganeti/vnc-cluster-password"
 434 VNC_DEFAULT_BIND_ADDRESS = '0.0.0.0'
 435
 436 # NIC types
 437 HT_NIC_RTL8139 = "rtl8139"
 438 HT_NIC_NE2K_PCI = "ne2k_pci"
 439 HT_NIC_NE2K_ISA = "ne2k_isa"
 440 HT_NIC_I82551 = "i82551"
 441 HT_NIC_I85557B = "i82557b"
 442 HT_NIC_I8259ER = "i82559er"
 443 HT_NIC_PCNET = "pcnet"
 444 HT_NIC_E1000 = "e1000"
 445 HT_NIC_PARAVIRTUAL = HT_DISK_PARAVIRTUAL = "paravirtual"
 446
 447 HT_HVM_VALID_NIC_TYPES = frozenset([HT_NIC_RTL8139, HT_NIC_NE2K_PCI,
 448                                     HT_NIC_NE2K_ISA, HT_NIC_PARAVIRTUAL])
 449 HT_KVM_VALID_NIC_TYPES = frozenset([HT_NIC_RTL8139, HT_NIC_NE2K_PCI,
 450                                     HT_NIC_NE2K_ISA, HT_NIC_I82551,
 451                                     HT_NIC_I85557B, HT_NIC_I8259ER,
 452                                     HT_NIC_PCNET, HT_NIC_E1000,
 453                                     HT_NIC_PARAVIRTUAL])
 454 # Disk types
 455 HT_DISK_IOEMU = "ioemu"
 456 HT_DISK_IDE = "ide"
 457 HT_DISK_SCSI = "scsi"
 458 HT_DISK_SD = "sd"
 459 HT_DISK_MTD = "mtd"
 460 HT_DISK_PFLASH = "pflash"
 461
 462 HT_HVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IOEMU])
 463 HT_KVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IDE,
 464                                      HT_DISK_SCSI, HT_DISK_SD, HT_DISK_MTD,
 465                                      HT_DISK_PFLASH])
 466
 467 # Mouse types:
 468 HT_MOUSE_MOUSE = "mouse"
 469 HT_MOUSE_TABLET = "tablet"
 470
 471 HT_KVM_VALID_MOUSE_TYPES = frozenset([HT_MOUSE_MOUSE, HT_MOUSE_TABLET])
 472
 473 # Boot order
 474 HT_BO_CDROM = "cdrom"
 475 HT_BO_DISK = "disk"
 476 HT_BO_NETWORK = "network"
 477
 478 HT_KVM_VALID_BO_TYPES = frozenset([HT_BO_CDROM, HT_BO_DISK, HT_BO_NETWORK])
 479
 480 # Cluster Verify steps
 481 VERIFY_NPLUSONE_MEM = 'nplusone_mem'
 482 VERIFY_OPTIONAL_CHECKS = frozenset([VERIFY_NPLUSONE_MEM])
 483
 484 # Node verify constants
 485 NV_FILELIST = "filelist"
 486 NV_HVINFO = "hvinfo"
 487 NV_HYPERVISOR = "hypervisor"
 488 NV_INSTANCELIST = "instancelist"
 489 NV_LVLIST = "lvlist"
 490 NV_NODELIST = "nodelist"
 491 NV_NODENETTEST = "node-net-test"
 492 NV_VERSION = "version"
 493 NV_VGLIST = "vglist"
 494 NV_DRBDLIST = "drbd-list"
 495
 496 # Allocator framework constants
 497 IALLOCATOR_VERSION = 2
 498 IALLOCATOR_DIR_IN = "in"
 499 IALLOCATOR_DIR_OUT = "out"
 500 IALLOCATOR_MODE_ALLOC = "allocate"
 501 IALLOCATOR_MODE_RELOC = "relocate"
 502 IALLOCATOR_SEARCH_PATH = _autoconf.IALLOCATOR_SEARCH_PATH
 503
 504 # Job queue
 505 JOB_QUEUE_VERSION = 1
 506 JOB_QUEUE_LOCK_FILE = QUEUE_DIR + "/lock"
 507 JOB_QUEUE_VERSION_FILE = QUEUE_DIR + "/version"
 508 JOB_QUEUE_SERIAL_FILE = QUEUE_DIR + "/serial"
 509 JOB_QUEUE_ARCHIVE_DIR = QUEUE_DIR + "/archive"
 510 JOB_QUEUE_DRAIN_FILE = QUEUE_DIR + "/drain"
 511 JOB_QUEUE_SIZE_HARD_LIMIT = 5000
 512 JOB_QUEUE_SIZE_SOFT_LIMIT = JOB_QUEUE_SIZE_HARD_LIMIT * 0.8
 513
 514 JOB_ID_TEMPLATE = r"\d+"
 515
 516 # unchanged job return
 517 JOB_NOTCHANGED = "nochange"
 518
 519 # Job status
 520 JOB_STATUS_QUEUED = "queued"
 521 JOB_STATUS_WAITLOCK = "waiting"
 522 JOB_STATUS_CANCELING = "canceling"
 523 JOB_STATUS_RUNNING = "running"
 524 JOB_STATUS_CANCELED = "canceled"
 525 JOB_STATUS_SUCCESS = "success"
 526 JOB_STATUS_ERROR = "error"
 527
 528 # OpCode status
 529 # not yet finalized
 530 OP_STATUS_QUEUED = "queued"
 531 OP_STATUS_WAITLOCK = "waiting"
 532 OP_STATUS_CANCELING = "canceling"
 533 OP_STATUS_RUNNING = "running"
 534 # finalized
 535 OP_STATUS_CANCELED = "canceled"
 536 OP_STATUS_SUCCESS = "success"
 537 OP_STATUS_ERROR = "error"
 538 OPS_FINALIZED = frozenset([OP_STATUS_CANCELED,
 539                            OP_STATUS_SUCCESS,
 540                            OP_STATUS_ERROR])
 541
 542 # Execution log types
 543 ELOG_MESSAGE = "message"
 544 ELOG_PROGRESS = "progress"
 545
 546 # max dynamic devices
 547 MAX_NICS = 8
 548 MAX_DISKS = 16
 549
 550 # SSCONF keys
 551 SS_CLUSTER_NAME = "cluster_name"
 552 SS_CLUSTER_TAGS = "cluster_tags"
 553 SS_FILE_STORAGE_DIR = "file_storage_dir"
 554 SS_MASTER_CANDIDATES = "master_candidates"
 555 SS_MASTER_CANDIDATES_IPS = "master_candidates_ips"
 556 SS_MASTER_IP = "master_ip"
 557 SS_MASTER_NETDEV = "master_netdev"
 558 SS_MASTER_NODE = "master_node"
 559 SS_NODE_LIST = "node_list"
 560 SS_NODE_PRIMARY_IPS = "node_primary_ips"
 561 SS_NODE_SECONDARY_IPS = "node_secondary_ips"
 562 SS_OFFLINE_NODES = "offline_nodes"
 563 SS_ONLINE_NODES = "online_nodes"
 564 SS_INSTANCE_LIST = "instance_list"
 565 SS_RELEASE_VERSION = "release_version"
 566
 567 # cluster wide default parameters
 568 DEFAULT_ENABLED_HYPERVISOR = HT_XEN_PVM
 569
 570 HVC_DEFAULTS = {
 571   HT_XEN_PVM: {
 572     HV_KERNEL_PATH: "/boot/vmlinuz-2.6-xenU",
 573     HV_INITRD_PATH: '',
 574     HV_ROOT_PATH: '/dev/sda1',
 575     HV_KERNEL_ARGS: 'ro',
 576     },
 577   HT_XEN_HVM: {
 578     HV_BOOT_ORDER: "cd",
 579     HV_CDROM_IMAGE_PATH: '',
 580     HV_NIC_TYPE: HT_NIC_RTL8139,
 581     HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
 582     HV_VNC_BIND_ADDRESS: '0.0.0.0',
 583     HV_ACPI: True,
 584     HV_PAE: True,
 585     HV_KERNEL_PATH: "/usr/lib/xen/boot/hvmloader",
 586     HV_DEVICE_MODEL: "/usr/lib/xen/bin/qemu-dm",
 587     },
 588   HT_KVM: {
 589     HV_KERNEL_PATH: "/boot/vmlinuz-2.6-kvmU",
 590     HV_INITRD_PATH: '',
 591     HV_KERNEL_ARGS: 'ro',
 592     HV_ROOT_PATH: '/dev/vda1',
 593     HV_ACPI: True,
 594     HV_SERIAL_CONSOLE: True,
 595     HV_VNC_BIND_ADDRESS: '',
 596     HV_VNC_TLS: False,
 597     HV_VNC_X509: '',
 598     HV_VNC_X509_VERIFY: False,
 599     HV_CDROM_IMAGE_PATH: '',
 600     HV_BOOT_ORDER: HT_BO_DISK,
 601     HV_NIC_TYPE: HT_NIC_PARAVIRTUAL,
 602     HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
 603     HV_USB_MOUSE: '',
 604     },
 605   HT_FAKE: {
 606     },
 607   HT_CHROOT: {
 608     HV_INIT_SCRIPT: "/ganeti-chroot",
 609     },
 610   }
 611
 612 BEC_DEFAULTS = {
 613   BE_MEMORY: 128,
 614   BE_VCPUS: 1,
 615   BE_AUTO_BALANCE: True,
 616   }
 617
 618 NICC_DEFAULTS = {
 619   NIC_MODE: NIC_MODE_BRIDGED,
 620   NIC_LINK: DEFAULT_BRIDGE,
 621   }
 622
 623 MASTER_POOL_SIZE_DEFAULT = 10
 624
 625 CONFD_PROTOCOL_VERSION = 1
 626
 627 CONFD_REQ_NODE_ROLE_BYNAME = 1
 628 CONFD_REQ_NODE_PIP_BY_INSTANCE_IP = 2
 629
 630 CONFD_REQS = frozenset([
 631   CONFD_REQ_NODE_ROLE_BYNAME,
 632   CONFD_REQ_NODE_PIP_BY_INSTANCE_IP,
 633   ])
 634
 635 CONFD_REPL_STATUS_OK = 0
 636 CONFD_REPL_STATUS_ERROR = 1
 637 CONFD_REPL_STATUS_NOTIMPLEMENTED = 2
 638
 639 CONFD_REPL_STATUSES = frozenset([
 640   CONFD_REPL_STATUS_OK,
 641   CONFD_REPL_STATUS_ERROR,
 642   CONFD_REPL_STATUS_NOTIMPLEMENTED,
 643   ])
 644
 645 (CONFD_NODE_ROLE_MASTER,
 646  CONFD_NODE_ROLE_CANDIDATE,
 647  CONFD_NODE_ROLE_OFFLINE,
 648  CONFD_NODE_ROLE_DRAINED) = range(4)
 649