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 WATCHER_PAUSEFILE = DATA_DIR + "/watcher.pause"
 103 INSTANCE_UPFILE = RUN_GANETI_DIR + "/instance-status"
 104 SSH_KNOWN_HOSTS_FILE = DATA_DIR + "/known_hosts"
 105 RAPI_USERS_FILE = DATA_DIR + "/rapi_users"
 106 QUEUE_DIR = DATA_DIR + "/queue"
 107 ETC_HOSTS = "/etc/hosts"
 108 DEFAULT_FILE_STORAGE_DIR = _autoconf.FILE_STORAGE_DIR
 109 SYSCONFDIR = _autoconf.SYSCONFDIR
 110 TOOLSDIR = _autoconf.TOOLSDIR
 111 CONF_DIR = SYSCONFDIR + "/ganeti"
 112
 113 MASTER_SOCKET = SOCKET_DIR + "/ganeti-master"
 114
 115 NODE_INITD_SCRIPT = SYSCONFDIR + "/init.d/ganeti"
 116
 117 NODED = "ganeti-noded"
 118 CONFD = "ganeti-confd"
 119 RAPI = "ganeti-rapi"
 120 MASTERD = "ganeti-masterd"
 121
 122 MULTITHREADED_DAEMONS = frozenset([MASTERD])
 123
 124 DAEMONS_SSL = {
 125   # daemon-name: (default-cert-path, default-key-path)
 126   NODED: (SSL_CERT_FILE, SSL_CERT_FILE),
 127   RAPI: (RAPI_CERT_FILE, RAPI_CERT_FILE),
 128 }
 129
 130 DAEMONS_PORTS = {
 131   # daemon-name: ("proto", "default-port")
 132   NODED: ("tcp", 1811),
 133   CONFD: ("udp", 1814),
 134   RAPI: ("tcp", 5080),
 135 }
 136 DEFAULT_NODED_PORT = DAEMONS_PORTS[NODED][1]
 137 DEFAULT_CONFD_PORT = DAEMONS_PORTS[CONFD][1]
 138 DEFAULT_RAPI_PORT = DAEMONS_PORTS[RAPI][1]
 139
 140 FIRST_DRBD_PORT = 11000
 141 LAST_DRBD_PORT = 14999
 142 MASTER_SCRIPT = "ganeti-master"
 143
 144 LOG_DIR = _autoconf.LOCALSTATEDIR + "/log/ganeti/"
 145 DAEMONS_LOGFILES = {
 146   # "daemon-name": "logfile"
 147   NODED: LOG_DIR + "node-daemon.log",
 148   CONFD: LOG_DIR + "conf-daemon.log",
 149   RAPI: LOG_DIR + "rapi-daemon.log",
 150   MASTERD: LOG_DIR + "master-daemon.log",
 151   }
 152 LOG_OS_DIR = LOG_DIR + "os"
 153 LOG_WATCHER = LOG_DIR + "watcher.log"
 154 LOG_COMMANDS = LOG_DIR + "commands.log"
 155 LOG_BURNIN = LOG_DIR + "burnin.log"
 156
 157 OS_SEARCH_PATH = _autoconf.OS_SEARCH_PATH
 158 EXPORT_DIR = _autoconf.EXPORT_DIR
 159
 160 EXPORT_CONF_FILE = "config.ini"
 161
 162 XEN_BOOTLOADER = _autoconf.XEN_BOOTLOADER
 163 XEN_KERNEL = _autoconf.XEN_KERNEL
 164 XEN_INITRD = _autoconf.XEN_INITRD
 165
 166 KVM_PATH = _autoconf.KVM_PATH
 167 SOCAT_PATH = _autoconf.SOCAT_PATH
 168 KVM_MIGRATION_PORT = _autoconf.KVM_MIGRATION_PORT
 169
 170 VALUE_DEFAULT = "default"
 171 VALUE_AUTO = "auto"
 172 VALUE_GENERATE = "generate"
 173 VALUE_NONE = "none"
 174 VALUE_TRUE = "true"
 175 VALUE_FALSE = "false"
 176
 177 # hooks-related constants
 178 HOOKS_BASE_DIR = CONF_DIR + "/hooks"
 179 HOOKS_PHASE_PRE = "pre"
 180 HOOKS_PHASE_POST = "post"
 181 HOOKS_NAME_CFGUPDATE = "config-update"
 182 HOOKS_VERSION = 2
 183
 184 # hooks subject type (what object type does the LU deal with)
 185 HTYPE_CLUSTER = "CLUSTER"
 186 HTYPE_NODE = "NODE"
 187 HTYPE_INSTANCE = "INSTANCE"
 188
 189 HKR_SKIP = 0
 190 HKR_FAIL = 1
 191 HKR_SUCCESS = 2
 192
 193 # Storage types
 194 ST_FILE = "file"
 195 ST_LVM_PV = "lvm-pv"
 196 ST_LVM_VG = "lvm-vg"
 197
 198 # Storage fields
 199 # first two are valid in LU context only, not passed to backend
 200 SF_NODE = "node"
 201 SF_TYPE = "type"
 202 # and the rest are valid in backend
 203 SF_NAME = "name"
 204 SF_SIZE = "size"
 205 SF_FREE = "free"
 206 SF_USED = "used"
 207 SF_ALLOCATABLE = "allocatable"
 208
 209 # Storage operations
 210 SO_FIX_CONSISTENCY = "fix-consistency"
 211
 212 # Available fields per storage type
 213 VALID_STORAGE_FIELDS = frozenset([SF_NAME, SF_TYPE, SF_SIZE,
 214                                   SF_USED, SF_FREE, SF_ALLOCATABLE])
 215
 216 VALID_STORAGE_TYPES = frozenset([ST_FILE, ST_LVM_PV, ST_LVM_VG])
 217
 218 MODIFIABLE_STORAGE_FIELDS = {
 219   ST_LVM_PV: frozenset([SF_ALLOCATABLE]),
 220   }
 221
 222 VALID_STORAGE_OPERATIONS = {
 223   ST_LVM_VG: frozenset([SO_FIX_CONSISTENCY]),
 224   }
 225
 226 # Local disk status
 227 # Note: Code depends on LDS_OKAY < LDS_UNKNOWN < LDS_FAULTY
 228 (LDS_OKAY,
 229  LDS_UNKNOWN,
 230  LDS_FAULTY) = range(1, 4)
 231
 232 # disk template types
 233 DT_DISKLESS = "diskless"
 234 DT_PLAIN = "plain"
 235 DT_DRBD8 = "drbd"
 236 DT_FILE = "file"
 237
 238 # the set of network-mirrored disk templates
 239 DTS_NET_MIRROR = frozenset([DT_DRBD8])
 240
 241 # the set of non-lvm-based disk templates
 242 DTS_NOT_LVM = frozenset([DT_DISKLESS, DT_FILE])
 243
 244 # logical disk types
 245 LD_LV = "lvm"
 246 LD_DRBD8 = "drbd8"
 247 LD_FILE = "file"
 248 LDS_BLOCK = frozenset([LD_LV, LD_DRBD8])
 249
 250 # drbd constants
 251 DRBD_HMAC_ALG = "md5"
 252 DRBD_NET_PROTOCOL = "C"
 253
 254 # file backend driver
 255 FD_LOOP = "loop"
 256 FD_BLKTAP = "blktap"
 257
 258 # the set of drbd-like disk types
 259 LDS_DRBD = frozenset([LD_DRBD8])
 260
 261 # disk access mode
 262 DISK_RDONLY = "ro"
 263 DISK_RDWR = "rw"
 264 DISK_ACCESS_SET = frozenset([DISK_RDONLY, DISK_RDWR])
 265
 266 # disk replacement mode
 267 REPLACE_DISK_PRI = "replace_on_primary"    # replace disks on primary
 268 REPLACE_DISK_SEC = "replace_on_secondary"  # replace disks on secondary
 269 REPLACE_DISK_CHG = "replace_new_secondary" # change secondary node
 270 REPLACE_DISK_AUTO = "replace_auto"
 271
 272 # lock recalculate mode
 273 LOCKS_REPLACE = 'replace'
 274 LOCKS_APPEND = 'append'
 275
 276 # instance creation modes
 277 INSTANCE_CREATE = "create"
 278 INSTANCE_IMPORT = "import"
 279
 280 DISK_TEMPLATES = frozenset([DT_DISKLESS, DT_PLAIN,
 281                             DT_DRBD8, DT_FILE])
 282
 283 FILE_DRIVER = frozenset([FD_LOOP, FD_BLKTAP])
 284
 285 # import/export config options
 286 INISECT_EXP = "export"
 287 INISECT_INS = "instance"
 288
 289 # dynamic device modification
 290
 291 DDM_ADD = 'add'
 292 DDM_REMOVE = 'remove'
 293
 294 # common exit codes
 295 EXIT_SUCCESS = 0
 296 EXIT_FAILURE = 1
 297 EXIT_NOTCLUSTER = 5
 298 EXIT_NOTMASTER = 11
 299 EXIT_NODESETUP_ERROR = 12
 300 EXIT_CONFIRMATION = 13 # need user confirmation
 301 EXIT_NOTCANDIDATE = 14
 302
 303 # tags
 304 TAG_CLUSTER = "cluster"
 305 TAG_NODE = "node"
 306 TAG_INSTANCE = "instance"
 307 MAX_TAG_LEN = 128
 308 MAX_TAGS_PER_OBJ = 4096
 309
 310 # others
 311 DEFAULT_BRIDGE = "xen-br0"
 312 SYNC_SPEED = 60 * 1024
 313 LOCALHOST_IP_ADDRESS = "127.0.0.1"
 314 TCP_PING_TIMEOUT = 10
 315 GANETI_RUNAS = "root"
 316 DEFAULT_VG = "xenvg"
 317 BIND_ADDRESS_GLOBAL = "0.0.0.0"
 318 MIN_VG_SIZE = 20480
 319 DEFAULT_MAC_PREFIX = "aa:00:00"
 320 LVM_STRIPECOUNT = _autoconf.LVM_STRIPECOUNT
 321 # default maximum instance wait time, in seconds.
 322 DEFAULT_SHUTDOWN_TIMEOUT = 120
 323
 324
 325 # RPC constants
 326 (RPC_ENCODING_NONE,
 327  RPC_ENCODING_ZLIB_BASE64) = range(2)
 328
 329 # os related constants
 330 OS_SCRIPT_CREATE = 'create'
 331 OS_SCRIPT_IMPORT = 'import'
 332 OS_SCRIPT_EXPORT = 'export'
 333 OS_SCRIPT_RENAME = 'rename'
 334 OS_SCRIPTS = frozenset([OS_SCRIPT_CREATE, OS_SCRIPT_IMPORT,
 335                         OS_SCRIPT_EXPORT, OS_SCRIPT_RENAME])
 336
 337 OS_API_FILE = 'ganeti_api_version'
 338 OS_VARIANTS_FILE = 'variants.list'
 339
 340 # ssh constants
 341 SSH_INITD_SCRIPT = _autoconf.SSH_INITD_SCRIPT
 342 SSH_CONFIG_DIR = "/etc/ssh/"
 343 SSH_HOST_DSA_PRIV = SSH_CONFIG_DIR + "ssh_host_dsa_key"
 344 SSH_HOST_DSA_PUB = SSH_HOST_DSA_PRIV + ".pub"
 345 SSH_HOST_RSA_PRIV = SSH_CONFIG_DIR + "ssh_host_rsa_key"
 346 SSH_HOST_RSA_PUB = SSH_HOST_RSA_PRIV + ".pub"
 347 SSH = "ssh"
 348 SCP = "scp"
 349
 350 # reboot types
 351 INSTANCE_REBOOT_SOFT = "soft"
 352 INSTANCE_REBOOT_HARD = "hard"
 353 INSTANCE_REBOOT_FULL = "full"
 354
 355 REBOOT_TYPES = frozenset([INSTANCE_REBOOT_SOFT,
 356                           INSTANCE_REBOOT_HARD,
 357                           INSTANCE_REBOOT_FULL])
 358
 359 VTYPE_STRING = 'string'
 360 VTYPE_BOOL = 'bool'
 361 VTYPE_SIZE = 'size' # size, in MiBs
 362 VTYPE_INT = 'int'
 363 ENFORCEABLE_TYPES = frozenset([
 364                       VTYPE_STRING,
 365                       VTYPE_BOOL,
 366                       VTYPE_SIZE,
 367                       VTYPE_INT,
 368                       ])
 369
 370 # HV parameter names (global namespace)
 371 HV_BOOT_ORDER = "boot_order"
 372 HV_CDROM_IMAGE_PATH = "cdrom_image_path"
 373 HV_NIC_TYPE = "nic_type"
 374 HV_DISK_TYPE = "disk_type"
 375 HV_VNC_BIND_ADDRESS = "vnc_bind_address"
 376 HV_VNC_PASSWORD_FILE = "vnc_password_file"
 377 HV_VNC_TLS = "vnc_tls"
 378 HV_VNC_X509 = "vnc_x509_path"
 379 HV_VNC_X509_VERIFY = "vnc_x509_verify"
 380 HV_ACPI = "acpi"
 381 HV_PAE = "pae"
 382 HV_USE_BOOTLOADER = "use_bootloader"
 383 HV_BOOTLOADER_ARGS = "bootloader_args"
 384 HV_BOOTLOADER_PATH = "bootloader_path"
 385 HV_KERNEL_ARGS = "kernel_args"
 386 HV_KERNEL_PATH = "kernel_path"
 387 HV_INITRD_PATH = "initrd_path"
 388 HV_ROOT_PATH = "root_path"
 389 HV_SERIAL_CONSOLE = "serial_console"
 390 HV_USB_MOUSE = "usb_mouse"
 391 HV_DEVICE_MODEL = "device_model"
 392 HV_INIT_SCRIPT = "init_script"
 393
 394 HVS_PARAMETER_TYPES = {
 395   HV_BOOT_ORDER: VTYPE_STRING,
 396   HV_CDROM_IMAGE_PATH: VTYPE_STRING,
 397   HV_NIC_TYPE: VTYPE_STRING,
 398   HV_DISK_TYPE: VTYPE_STRING,
 399   HV_VNC_PASSWORD_FILE: VTYPE_STRING,
 400   HV_VNC_BIND_ADDRESS: VTYPE_STRING,
 401   HV_VNC_TLS: VTYPE_BOOL,
 402   HV_VNC_X509: VTYPE_STRING,
 403   HV_VNC_X509_VERIFY: VTYPE_BOOL,
 404   HV_ACPI: VTYPE_BOOL,
 405   HV_PAE: VTYPE_BOOL,
 406   HV_USE_BOOTLOADER: VTYPE_BOOL,
 407   HV_BOOTLOADER_PATH: VTYPE_STRING,
 408   HV_BOOTLOADER_ARGS: VTYPE_STRING,
 409   HV_KERNEL_PATH: VTYPE_STRING,
 410   HV_KERNEL_ARGS: VTYPE_STRING,
 411   HV_INITRD_PATH: VTYPE_STRING,
 412   HV_ROOT_PATH: VTYPE_STRING,
 413   HV_SERIAL_CONSOLE: VTYPE_BOOL,
 414   HV_USB_MOUSE: VTYPE_STRING,
 415   HV_DEVICE_MODEL: VTYPE_STRING,
 416   HV_INIT_SCRIPT: VTYPE_STRING,
 417   }
 418
 419 HVS_PARAMETERS = frozenset(HVS_PARAMETER_TYPES.keys())
 420
 421 # BE parameter names
 422 BE_MEMORY = "memory"
 423 BE_VCPUS = "vcpus"
 424 BE_AUTO_BALANCE = "auto_balance"
 425
 426 BES_PARAMETER_TYPES = {
 427     BE_MEMORY: VTYPE_SIZE,
 428     BE_VCPUS: VTYPE_INT,
 429     BE_AUTO_BALANCE: VTYPE_BOOL,
 430     }
 431
 432 BES_PARAMETERS = frozenset(BES_PARAMETER_TYPES.keys())
 433
 434 # Instance Parameters Profile
 435 PP_DEFAULT = "default"
 436
 437 NIC_MODE = "mode"
 438 NIC_LINK = "link"
 439
 440 NIC_MODE_BRIDGED = "bridged"
 441 NIC_MODE_ROUTED = "routed"
 442
 443 NIC_VALID_MODES = frozenset([NIC_MODE_BRIDGED, NIC_MODE_ROUTED])
 444
 445 NICS_PARAMETER_TYPES = {
 446     NIC_MODE: VTYPE_STRING,
 447     NIC_LINK: VTYPE_STRING,
 448     }
 449
 450 NICS_PARAMETERS = frozenset(NICS_PARAMETER_TYPES.keys())
 451
 452 # Hypervisor constants
 453 HT_XEN_PVM = "xen-pvm"
 454 HT_FAKE = "fake"
 455 HT_XEN_HVM = "xen-hvm"
 456 HT_KVM = "kvm"
 457 HT_CHROOT = "chroot"
 458 HYPER_TYPES = frozenset([HT_XEN_PVM, HT_FAKE, HT_XEN_HVM, HT_KVM, HT_CHROOT])
 459 HTS_REQ_PORT = frozenset([HT_XEN_HVM, HT_KVM])
 460
 461 VNC_BASE_PORT = 5900
 462 VNC_PASSWORD_FILE = CONF_DIR + "/vnc-cluster-password"
 463 VNC_DEFAULT_BIND_ADDRESS = '0.0.0.0'
 464
 465 # NIC types
 466 HT_NIC_RTL8139 = "rtl8139"
 467 HT_NIC_NE2K_PCI = "ne2k_pci"
 468 HT_NIC_NE2K_ISA = "ne2k_isa"
 469 HT_NIC_I82551 = "i82551"
 470 HT_NIC_I85557B = "i82557b"
 471 HT_NIC_I8259ER = "i82559er"
 472 HT_NIC_PCNET = "pcnet"
 473 HT_NIC_E1000 = "e1000"
 474 HT_NIC_PARAVIRTUAL = HT_DISK_PARAVIRTUAL = "paravirtual"
 475
 476 HT_HVM_VALID_NIC_TYPES = frozenset([HT_NIC_RTL8139, HT_NIC_NE2K_PCI,
 477                                     HT_NIC_NE2K_ISA, HT_NIC_PARAVIRTUAL])
 478 HT_KVM_VALID_NIC_TYPES = frozenset([HT_NIC_RTL8139, HT_NIC_NE2K_PCI,
 479                                     HT_NIC_NE2K_ISA, HT_NIC_I82551,
 480                                     HT_NIC_I85557B, HT_NIC_I8259ER,
 481                                     HT_NIC_PCNET, HT_NIC_E1000,
 482                                     HT_NIC_PARAVIRTUAL])
 483 # Disk types
 484 HT_DISK_IOEMU = "ioemu"
 485 HT_DISK_IDE = "ide"
 486 HT_DISK_SCSI = "scsi"
 487 HT_DISK_SD = "sd"
 488 HT_DISK_MTD = "mtd"
 489 HT_DISK_PFLASH = "pflash"
 490
 491 HT_HVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IOEMU])
 492 HT_KVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IDE,
 493                                      HT_DISK_SCSI, HT_DISK_SD, HT_DISK_MTD,
 494                                      HT_DISK_PFLASH])
 495
 496 # Mouse types:
 497 HT_MOUSE_MOUSE = "mouse"
 498 HT_MOUSE_TABLET = "tablet"
 499
 500 HT_KVM_VALID_MOUSE_TYPES = frozenset([HT_MOUSE_MOUSE, HT_MOUSE_TABLET])
 501
 502 # Boot order
 503 HT_BO_CDROM = "cdrom"
 504 HT_BO_DISK = "disk"
 505 HT_BO_NETWORK = "network"
 506
 507 HT_KVM_VALID_BO_TYPES = frozenset([HT_BO_CDROM, HT_BO_DISK, HT_BO_NETWORK])
 508
 509 # Cluster Verify steps
 510 VERIFY_NPLUSONE_MEM = 'nplusone_mem'
 511 VERIFY_OPTIONAL_CHECKS = frozenset([VERIFY_NPLUSONE_MEM])
 512
 513 # Node verify constants
 514 NV_FILELIST = "filelist"
 515 NV_HVINFO = "hvinfo"
 516 NV_HYPERVISOR = "hypervisor"
 517 NV_INSTANCELIST = "instancelist"
 518 NV_NODELIST = "nodelist"
 519 NV_NODENETTEST = "node-net-test"
 520 NV_VERSION = "version"
 521 NV_VGLIST = "vglist"
 522 NV_LVLIST = "lvlist"
 523 NV_PVLIST = "pvlist"
 524 NV_DRBDLIST = "drbd-list"
 525 NV_NODESETUP = "nodesetup"
 526
 527 # Allocator framework constants
 528 IALLOCATOR_VERSION = 2
 529 IALLOCATOR_DIR_IN = "in"
 530 IALLOCATOR_DIR_OUT = "out"
 531 IALLOCATOR_MODE_ALLOC = "allocate"
 532 IALLOCATOR_MODE_RELOC = "relocate"
 533 IALLOCATOR_SEARCH_PATH = _autoconf.IALLOCATOR_SEARCH_PATH
 534
 535 # Job queue
 536 JOB_QUEUE_VERSION = 1
 537 JOB_QUEUE_LOCK_FILE = QUEUE_DIR + "/lock"
 538 JOB_QUEUE_VERSION_FILE = QUEUE_DIR + "/version"
 539 JOB_QUEUE_SERIAL_FILE = QUEUE_DIR + "/serial"
 540 JOB_QUEUE_ARCHIVE_DIR = QUEUE_DIR + "/archive"
 541 JOB_QUEUE_DRAIN_FILE = QUEUE_DIR + "/drain"
 542 JOB_QUEUE_SIZE_HARD_LIMIT = 5000
 543 JOB_QUEUE_SIZE_SOFT_LIMIT = JOB_QUEUE_SIZE_HARD_LIMIT * 0.8
 544
 545 JOB_ID_TEMPLATE = r"\d+"
 546
 547 # unchanged job return
 548 JOB_NOTCHANGED = "nochange"
 549
 550 # Job status
 551 JOB_STATUS_QUEUED = "queued"
 552 JOB_STATUS_WAITLOCK = "waiting"
 553 JOB_STATUS_CANCELING = "canceling"
 554 JOB_STATUS_RUNNING = "running"
 555 JOB_STATUS_CANCELED = "canceled"
 556 JOB_STATUS_SUCCESS = "success"
 557 JOB_STATUS_ERROR = "error"
 558
 559 # OpCode status
 560 # not yet finalized
 561 OP_STATUS_QUEUED = "queued"
 562 OP_STATUS_WAITLOCK = "waiting"
 563 OP_STATUS_CANCELING = "canceling"
 564 OP_STATUS_RUNNING = "running"
 565 # finalized
 566 OP_STATUS_CANCELED = "canceled"
 567 OP_STATUS_SUCCESS = "success"
 568 OP_STATUS_ERROR = "error"
 569 OPS_FINALIZED = frozenset([OP_STATUS_CANCELED,
 570                            OP_STATUS_SUCCESS,
 571                            OP_STATUS_ERROR])
 572
 573 # Execution log types
 574 ELOG_MESSAGE = "message"
 575 ELOG_PROGRESS = "progress"
 576
 577 # max dynamic devices
 578 MAX_NICS = 8
 579 MAX_DISKS = 16
 580
 581 # SSCONF keys
 582 SS_CLUSTER_NAME = "cluster_name"
 583 SS_CLUSTER_TAGS = "cluster_tags"
 584 SS_FILE_STORAGE_DIR = "file_storage_dir"
 585 SS_MASTER_CANDIDATES = "master_candidates"
 586 SS_MASTER_CANDIDATES_IPS = "master_candidates_ips"
 587 SS_MASTER_IP = "master_ip"
 588 SS_MASTER_NETDEV = "master_netdev"
 589 SS_MASTER_NODE = "master_node"
 590 SS_NODE_LIST = "node_list"
 591 SS_NODE_PRIMARY_IPS = "node_primary_ips"
 592 SS_NODE_SECONDARY_IPS = "node_secondary_ips"
 593 SS_OFFLINE_NODES = "offline_nodes"
 594 SS_ONLINE_NODES = "online_nodes"
 595 SS_INSTANCE_LIST = "instance_list"
 596 SS_RELEASE_VERSION = "release_version"
 597
 598 # cluster wide default parameters
 599 DEFAULT_ENABLED_HYPERVISOR = HT_XEN_PVM
 600
 601 HVC_DEFAULTS = {
 602   HT_XEN_PVM: {
 603     HV_USE_BOOTLOADER: False,
 604     HV_BOOTLOADER_PATH: XEN_BOOTLOADER,
 605     HV_BOOTLOADER_ARGS: '',
 606     HV_KERNEL_PATH: "/boot/vmlinuz-2.6-xenU",
 607     HV_INITRD_PATH: '',
 608     HV_ROOT_PATH: '/dev/sda1',
 609     HV_KERNEL_ARGS: 'ro',
 610     },
 611   HT_XEN_HVM: {
 612     HV_BOOT_ORDER: "cd",
 613     HV_CDROM_IMAGE_PATH: '',
 614     HV_NIC_TYPE: HT_NIC_RTL8139,
 615     HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
 616     HV_VNC_BIND_ADDRESS: '0.0.0.0',
 617     HV_VNC_PASSWORD_FILE: VNC_PASSWORD_FILE,
 618     HV_ACPI: True,
 619     HV_PAE: True,
 620     HV_KERNEL_PATH: "/usr/lib/xen/boot/hvmloader",
 621     HV_DEVICE_MODEL: "/usr/lib/xen/bin/qemu-dm",
 622     },
 623   HT_KVM: {
 624     HV_KERNEL_PATH: "/boot/vmlinuz-2.6-kvmU",
 625     HV_INITRD_PATH: '',
 626     HV_KERNEL_ARGS: 'ro',
 627     HV_ROOT_PATH: '/dev/vda1',
 628     HV_ACPI: True,
 629     HV_SERIAL_CONSOLE: True,
 630     HV_VNC_BIND_ADDRESS: '',
 631     HV_VNC_TLS: False,
 632     HV_VNC_X509: '',
 633     HV_VNC_X509_VERIFY: False,
 634     HV_VNC_PASSWORD_FILE: '',
 635     HV_CDROM_IMAGE_PATH: '',
 636     HV_BOOT_ORDER: HT_BO_DISK,
 637     HV_NIC_TYPE: HT_NIC_PARAVIRTUAL,
 638     HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
 639     HV_USB_MOUSE: '',
 640     },
 641   HT_FAKE: {
 642     },
 643   HT_CHROOT: {
 644     HV_INIT_SCRIPT: "/ganeti-chroot",
 645     },
 646   }
 647
 648 BEC_DEFAULTS = {
 649   BE_MEMORY: 128,
 650   BE_VCPUS: 1,
 651   BE_AUTO_BALANCE: True,
 652   }
 653
 654 NICC_DEFAULTS = {
 655   NIC_MODE: NIC_MODE_BRIDGED,
 656   NIC_LINK: DEFAULT_BRIDGE,
 657   }
 658
 659 MASTER_POOL_SIZE_DEFAULT = 10
 660
 661 CONFD_PROTOCOL_VERSION = 1
 662
 663 CONFD_REQ_PING = 0
 664 CONFD_REQ_NODE_ROLE_BYNAME = 1
 665 CONFD_REQ_NODE_PIP_BY_INSTANCE_IP = 2
 666 CONFD_REQ_CLUSTER_MASTER = 3
 667 CONFD_REQ_NODE_PIP_LIST = 4
 668 CONFD_REQ_MC_PIP_LIST = 5
 669 CONFD_REQ_INSTANCES_IPS_LIST = 6
 670
 671 # Confd request query fields. These are used to narrow down queries.
 672 # These must be strings rather than integers, because json-encoding
 673 # converts them to strings anyway, as they're used as dict-keys.
 674 CONFD_REQQ_LINK = "0"
 675 CONFD_REQQ_IP = "1"
 676 CONFD_REQQ_IPLIST = "2"
 677
 678 CONFD_REQS = frozenset([
 679   CONFD_REQ_PING,
 680   CONFD_REQ_NODE_ROLE_BYNAME,
 681   CONFD_REQ_NODE_PIP_BY_INSTANCE_IP,
 682   CONFD_REQ_CLUSTER_MASTER,
 683   CONFD_REQ_NODE_PIP_LIST,
 684   CONFD_REQ_MC_PIP_LIST,
 685   CONFD_REQ_INSTANCES_IPS_LIST,
 686   ])
 687
 688 CONFD_REPL_STATUS_OK = 0
 689 CONFD_REPL_STATUS_ERROR = 1
 690 CONFD_REPL_STATUS_NOTIMPLEMENTED = 2
 691
 692 CONFD_REPL_STATUSES = frozenset([
 693   CONFD_REPL_STATUS_OK,
 694   CONFD_REPL_STATUS_ERROR,
 695   CONFD_REPL_STATUS_NOTIMPLEMENTED,
 696   ])
 697
 698 (CONFD_NODE_ROLE_MASTER,
 699  CONFD_NODE_ROLE_CANDIDATE,
 700  CONFD_NODE_ROLE_OFFLINE,
 701  CONFD_NODE_ROLE_DRAINED,
 702  CONFD_NODE_ROLE_REGULAR,
 703  ) = range(5)
 704
 705 # A few common errors for confd
 706 CONFD_ERROR_UNKNOWN_ENTRY = 1
 707 CONFD_ERROR_INTERNAL = 2
 708 CONFD_ERROR_ARGUMENT = 3
 709
 710 # Each request is "salted" by the current timestamp.
 711 # This constants decides how many seconds of skew to accept.
 712 # TODO: make this a default and allow the value to be more configurable
 713 CONFD_MAX_CLOCK_SKEW = 300
 714
 715 # When we haven't reloaded the config for more than this amount of seconds, we
 716 # force a test to see if inotify is betraying us.
 717 CONFD_CONFIG_RELOAD_TIMEOUT = 60
 718
 719 # If we receive more than one update in this amount of seconds, we move to
 720 # polling every RATELIMIT seconds, rather than relying on inotify, to be able
 721 # to serve more requests.
 722 CONFD_CONFIG_RELOAD_RATELIMIT = 2
 723
 724 # Magic number prepended to all confd queries.
 725 # This allows us to distinguish different types of confd protocols and handle
 726 # them. For example by changing this we can move the whole payload to be
 727 # compressed, or move away from json.
 728 CONFD_MAGIC_FOURCC = 'plj0'
 729
 730 # By default a confd request is sent to the minimum between this number and all
 731 # MCs. 6 was chosen because even in the case of a disastrous 50% response rate,
 732 # we should have enough answers to be able to compare more than one.
 733 CONFD_DEFAULT_REQ_COVERAGE = 6
 734
 735 # Timeout in seconds to expire pending query request in the confd client
 736 # library. We don't actually expect any answer more than 10 seconds after we
 737 # sent a request.
 738 CONFD_CLIENT_EXPIRE_TIMEOUT = 10
 739
 740 # Maximum UDP datagram size.
 741 # On IPv4: 64K - 20 (ip header size) - 8 (udp header size) = 65507
 742 # On IPv6: 64K - 40 (ip6 header size) - 8 (udp header size) = 65487
 743 #   (assuming we can't use jumbo frames)
 744 # We just set this to 60K, which should be enough
 745 MAX_UDP_DATA_SIZE = 61440