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 = 13
  28 RELEASE_VERSION = _autoconf.PACKAGE_VERSION
  29 OS_API_VERSION = 10
  30 EXPORT_VERSION = 0
  31 RAPI_VERSION = 2
  32
  33
  34 # Format for CONFIG_VERSION:
  35 #   01 03 0123 = 01030123
  36 #   ^^ ^^ ^^^^
  37 #   |  |  + Configuration version/revision
  38 #   |  + Minor version
  39 #   + Major version
  40 #
  41 # It stored as an integer. Make sure not to write an octal number.
  42
  43 # BuildVersion and SplitVersion must be in here because we can't import other
  44 # modules. The cfgupgrade tool must be able to read and write version numbers
  45 # and thus requires these functions. To avoid code duplication, they're kept in
  46 # here.
  47
  48 def BuildVersion(major, minor, revision):
  49   """Calculates int version number from major, minor and revision numbers.
  50
  51   Returns: int representing version number
  52
  53   """
  54   assert isinstance(major, int)
  55   assert isinstance(minor, int)
  56   assert isinstance(revision, int)
  57   return (1000000 * major +
  58             10000 * minor +
  59                 1 * revision)
  60
  61
  62 def SplitVersion(version):
  63   """Splits version number stored in an int.
  64
  65   Returns: tuple; (major, minor, revision)
  66
  67   """
  68   assert isinstance(version, int)
  69
  70   (major, remainder) = divmod(version, 1000000)
  71   (minor, revision) = divmod(remainder, 10000)
  72
  73   return (major, minor, revision)
  74
  75
  76 CONFIG_MAJOR = int(_autoconf.VERSION_MAJOR)
  77 CONFIG_MINOR = int(_autoconf.VERSION_MINOR)
  78 CONFIG_REVISION = 0
  79 CONFIG_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, CONFIG_REVISION)
  80
  81 # file paths
  82 DATA_DIR = _autoconf.LOCALSTATEDIR + "/lib/ganeti"
  83 RUN_DIR = _autoconf.LOCALSTATEDIR + "/run"
  84 RUN_GANETI_DIR = RUN_DIR + "/ganeti"
  85 BDEV_CACHE_DIR = RUN_GANETI_DIR + "/bdev-cache"
  86 DISK_LINKS_DIR = RUN_GANETI_DIR + "/instance-disks"
  87 RUN_DIRS_MODE = 0755
  88 SOCKET_DIR = RUN_GANETI_DIR + "/socket"
  89 SOCKET_DIR_MODE = 0700
  90 # keep RUN_GANETI_DIR first here, to make sure all get created when the node
  91 # daemon is started (this takes care of RUN_DIR being tmpfs)
  92 SUB_RUN_DIRS = [ RUN_GANETI_DIR, BDEV_CACHE_DIR, DISK_LINKS_DIR ]
  93 LOCK_DIR = _autoconf.LOCALSTATEDIR + "/lock"
  94 SSCONF_LOCK_FILE = LOCK_DIR + "/ganeti-ssconf.lock"
  95 CLUSTER_CONF_FILE = DATA_DIR + "/config.data"
  96 SSL_CERT_FILE = DATA_DIR + "/server.pem"
  97 RAPI_CERT_FILE = DATA_DIR + "/rapi.pem"
  98 WATCHER_STATEFILE = DATA_DIR + "/watcher.data"
  99 SSH_KNOWN_HOSTS_FILE = DATA_DIR + "/known_hosts"
 100 RAPI_USERS_FILE = DATA_DIR + "/rapi_users"
 101 QUEUE_DIR = DATA_DIR + "/queue"
 102 ETC_HOSTS = "/etc/hosts"
 103 DEFAULT_FILE_STORAGE_DIR = _autoconf.FILE_STORAGE_DIR
 104
 105 MASTER_SOCKET = SOCKET_DIR + "/ganeti-master"
 106
 107 # PID files
 108 MASTERD_PID = "ganeti-masterd"
 109 NODED_PID = "ganeti-noded"
 110 RAPI_PID = "ganeti-rapi"
 111
 112 NODE_INITD_SCRIPT = _autoconf.SYSCONFDIR + "/init.d/ganeti"
 113 DEFAULT_NODED_PORT = 1811
 114 FIRST_DRBD_PORT = 11000
 115 LAST_DRBD_PORT = 14999
 116 MASTER_SCRIPT = "ganeti-master"
 117
 118 LOG_DIR = _autoconf.LOCALSTATEDIR + "/log/ganeti/"
 119 LOG_OS_DIR = LOG_DIR + "os"
 120 LOG_NODESERVER = LOG_DIR + "node-daemon.log"
 121 LOG_WATCHER = LOG_DIR + "watcher.log"
 122 LOG_MASTERDAEMON = LOG_DIR + "master-daemon.log"
 123 LOG_RAPISERVER = LOG_DIR + "rapi-daemon.log"
 124 LOG_COMMANDS = LOG_DIR + "commands.log"
 125 LOG_BURNIN = LOG_DIR + "burnin.log"
 126
 127 OS_SEARCH_PATH = _autoconf.OS_SEARCH_PATH
 128 EXPORT_DIR = _autoconf.EXPORT_DIR
 129
 130 EXPORT_CONF_FILE = "config.ini"
 131
 132 XEN_KERNEL = _autoconf.XEN_KERNEL
 133 XEN_INITRD = _autoconf.XEN_INITRD
 134
 135 KVM_PATH = _autoconf.KVM_PATH
 136 SOCAT_PATH = _autoconf.SOCAT_PATH
 137 KVM_MIGRATION_PORT = _autoconf.KVM_MIGRATION_PORT
 138
 139 VALUE_DEFAULT = "default"
 140 VALUE_AUTO = "auto"
 141 VALUE_GENERATE = "generate"
 142 VALUE_NONE = "none"
 143 VALUE_TRUE = "true"
 144 VALUE_FALSE = "false"
 145
 146 # hooks-related constants
 147 HOOKS_BASE_DIR = _autoconf.SYSCONFDIR + "/ganeti/hooks"
 148 HOOKS_PHASE_PRE = "pre"
 149 HOOKS_PHASE_POST = "post"
 150 HOOKS_NAME_CFGUPDATE = "config-update"
 151 HOOKS_VERSION = 1
 152
 153 # hooks subject type (what object type does the LU deal with)
 154 HTYPE_CLUSTER = "CLUSTER"
 155 HTYPE_NODE = "NODE"
 156 HTYPE_INSTANCE = "INSTANCE"
 157
 158 HKR_SKIP = 0
 159 HKR_FAIL = 1
 160 HKR_SUCCESS = 2
 161
 162 # disk template types
 163 DT_DISKLESS = "diskless"
 164 DT_PLAIN = "plain"
 165 DT_DRBD8 = "drbd"
 166 DT_FILE = "file"
 167
 168 # the set of network-mirrored disk templates
 169 DTS_NET_MIRROR = frozenset([DT_DRBD8])
 170
 171 # the set of non-lvm-based disk templates
 172 DTS_NOT_LVM = frozenset([DT_DISKLESS, DT_FILE])
 173
 174 # logical disk types
 175 LD_LV = "lvm"
 176 LD_DRBD8 = "drbd8"
 177 LD_FILE = "file"
 178 LDS_BLOCK = frozenset([LD_LV, LD_DRBD8])
 179
 180 # drbd constants
 181 DRBD_HMAC_ALG = "md5"
 182 DRBD_NET_PROTOCOL = "C"
 183
 184 # file backend driver
 185 FD_LOOP = "loop"
 186 FD_BLKTAP = "blktap"
 187
 188 # the set of drbd-like disk types
 189 LDS_DRBD = frozenset([LD_DRBD8])
 190
 191 # disk access mode
 192 DISK_RDONLY = "ro"
 193 DISK_RDWR = "rw"
 194 DISK_ACCESS_SET = frozenset([DISK_RDONLY, DISK_RDWR])
 195
 196 # disk replacement mode
 197 REPLACE_DISK_PRI = "replace_on_primary"    # replace disks on primary
 198 REPLACE_DISK_SEC = "replace_on_secondary"  # replace disks on secondary
 199 REPLACE_DISK_CHG = "replace_new_secondary" # change secondary node
 200
 201 # lock recalculate mode
 202 LOCKS_REPLACE = 'replace'
 203 LOCKS_APPEND = 'append'
 204
 205 # instance creation modes
 206 INSTANCE_CREATE = "create"
 207 INSTANCE_IMPORT = "import"
 208
 209 DISK_TEMPLATES = frozenset([DT_DISKLESS, DT_PLAIN,
 210                             DT_DRBD8, DT_FILE])
 211
 212 FILE_DRIVER = frozenset([FD_LOOP, FD_BLKTAP])
 213
 214 # import/export config options
 215 INISECT_EXP = "export"
 216 INISECT_INS = "instance"
 217
 218 # dynamic device modification
 219
 220 DDM_ADD = 'add'
 221 DDM_REMOVE = 'remove'
 222
 223 # common exit codes
 224 EXIT_SUCCESS = 0
 225 EXIT_FAILURE = 1
 226 EXIT_NOTMASTER = 11
 227 EXIT_NODESETUP_ERROR = 12
 228 EXIT_CONFIRMATION = 13 # need user confirmation
 229
 230 # tags
 231 TAG_CLUSTER = "cluster"
 232 TAG_NODE = "node"
 233 TAG_INSTANCE = "instance"
 234 MAX_TAG_LEN = 128
 235 MAX_TAGS_PER_OBJ = 4096
 236
 237 # others
 238 DEFAULT_BRIDGE = "xen-br0"
 239 SYNC_SPEED = 60 * 1024
 240 LOCALHOST_IP_ADDRESS = "127.0.0.1"
 241 TCP_PING_TIMEOUT = 10
 242 GANETI_RUNAS = "root"
 243 DEFAULT_VG = "xenvg"
 244 BIND_ADDRESS_GLOBAL = "0.0.0.0"
 245 MIN_VG_SIZE = 20480
 246 DEFAULT_MAC_PREFIX = "aa:00:00"
 247
 248 # RPC constants
 249 (RPC_ENCODING_NONE,
 250  RPC_ENCODING_ZLIB_BASE64) = range(2)
 251
 252 # os related constants
 253 OS_VALID_STATUS = "VALID"
 254 OS_SCRIPT_CREATE = 'create'
 255 OS_SCRIPT_IMPORT = 'import'
 256 OS_SCRIPT_EXPORT = 'export'
 257 OS_SCRIPT_RENAME = 'rename'
 258 OS_SCRIPTS = frozenset([OS_SCRIPT_CREATE, OS_SCRIPT_IMPORT,
 259                         OS_SCRIPT_EXPORT, OS_SCRIPT_RENAME])
 260
 261 # ssh constants
 262 SSH_INITD_SCRIPT = _autoconf.SSH_INITD_SCRIPT
 263 SSH_CONFIG_DIR = "/etc/ssh/"
 264 SSH_HOST_DSA_PRIV = SSH_CONFIG_DIR + "ssh_host_dsa_key"
 265 SSH_HOST_DSA_PUB = SSH_HOST_DSA_PRIV + ".pub"
 266 SSH_HOST_RSA_PRIV = SSH_CONFIG_DIR + "ssh_host_rsa_key"
 267 SSH_HOST_RSA_PUB = SSH_HOST_RSA_PRIV + ".pub"
 268 SSH = "ssh"
 269 SCP = "scp"
 270
 271 # reboot types
 272 INSTANCE_REBOOT_SOFT = "soft"
 273 INSTANCE_REBOOT_HARD = "hard"
 274 INSTANCE_REBOOT_FULL = "full"
 275
 276 REBOOT_TYPES = frozenset([INSTANCE_REBOOT_SOFT,
 277                           INSTANCE_REBOOT_HARD,
 278                           INSTANCE_REBOOT_FULL])
 279
 280 # HV parameter names (global namespace)
 281 HV_BOOT_ORDER = "boot_order"
 282 HV_CDROM_IMAGE_PATH = "cdrom_image_path"
 283 HV_NIC_TYPE = "nic_type"
 284 HV_DISK_TYPE = "disk_type"
 285 HV_VNC_BIND_ADDRESS = "vnc_bind_address"
 286 HV_ACPI = "acpi"
 287 HV_PAE = "pae"
 288 HV_KERNEL_PATH = "kernel_path"
 289 HV_INITRD_PATH = "initrd_path"
 290 HV_ROOT_PATH = "root_path"
 291 HV_SERIAL_CONSOLE = "serial_console"
 292
 293 HVS_PARAMETERS = frozenset([
 294   HV_BOOT_ORDER,
 295   HV_CDROM_IMAGE_PATH,
 296   HV_NIC_TYPE,
 297   HV_DISK_TYPE,
 298   HV_VNC_BIND_ADDRESS,
 299   HV_ACPI,
 300   HV_PAE,
 301   HV_KERNEL_PATH,
 302   HV_INITRD_PATH,
 303   HV_ROOT_PATH,
 304   HV_SERIAL_CONSOLE,
 305   ])
 306
 307 # BE parameter names
 308 BE_MEMORY = "memory"
 309 BE_VCPUS = "vcpus"
 310 BE_AUTO_BALANCE = "auto_balance"
 311
 312 BES_PARAMETERS = frozenset([
 313   BE_MEMORY,
 314   BE_VCPUS,
 315   BE_AUTO_BALANCE,
 316   ])
 317
 318 # BE GROUP
 319 BEGR_DEFAULT = "default"
 320
 321 # Hypervisor constants
 322 HT_XEN_PVM = "xen-pvm"
 323 HT_FAKE = "fake"
 324 HT_XEN_HVM = "xen-hvm"
 325 HT_KVM = "kvm"
 326 HYPER_TYPES = frozenset([HT_XEN_PVM, HT_FAKE, HT_XEN_HVM, HT_KVM])
 327 HTS_REQ_PORT = frozenset([HT_XEN_HVM])
 328
 329 HT_HVM_VNC_BASE_PORT = 5900
 330 HT_HVM_DEFAULT_BOOT_ORDER = 'dc'
 331 VNC_PASSWORD_FILE = _autoconf.SYSCONFDIR + "/ganeti/vnc-cluster-password"
 332 VNC_DEFAULT_BIND_ADDRESS = '0.0.0.0'
 333
 334 # HVM NIC types
 335 HT_HVM_NIC_RTL8139 = "rtl8139"
 336 HT_HVM_NIC_NE2K_PCI = "ne2k_pci"
 337 HT_HVM_NIC_NE2K_ISA = "ne2k_isa"
 338 HT_HVM_DEV_PARAVIRTUAL = "paravirtual"
 339 HT_HVM_DEV_IOEMU = "ioemu"
 340 HT_HVM_VALID_NIC_TYPES = frozenset([HT_HVM_NIC_RTL8139, HT_HVM_NIC_NE2K_PCI,
 341                                     HT_HVM_NIC_NE2K_ISA,
 342                                     HT_HVM_DEV_PARAVIRTUAL])
 343 HT_HVM_VALID_DISK_TYPES = frozenset([HT_HVM_DEV_PARAVIRTUAL, HT_HVM_DEV_IOEMU])
 344
 345 # Cluster Verify steps
 346 VERIFY_NPLUSONE_MEM = 'nplusone_mem'
 347 VERIFY_OPTIONAL_CHECKS = frozenset([VERIFY_NPLUSONE_MEM])
 348
 349 # Node verify constants
 350 NV_FILELIST = "filelist"
 351 NV_HVINFO = "hvinfo"
 352 NV_HYPERVISOR = "hypervisor"
 353 NV_INSTANCELIST = "instancelist"
 354 NV_LVLIST = "lvlist"
 355 NV_NODELIST = "nodelist"
 356 NV_NODENETTEST = "node-net-test"
 357 NV_VERSION = "version"
 358 NV_VGLIST = "vglist"
 359 NV_DRBDLIST = "drbd-list"
 360
 361 # Allocator framework constants
 362 IALLOCATOR_DIR_IN = "in"
 363 IALLOCATOR_DIR_OUT = "out"
 364 IALLOCATOR_MODE_ALLOC = "allocate"
 365 IALLOCATOR_MODE_RELOC = "relocate"
 366 IALLOCATOR_SEARCH_PATH = _autoconf.IALLOCATOR_SEARCH_PATH
 367 IARUN_NOTFOUND = 1
 368 IARUN_FAILURE = 2
 369 IARUN_SUCCESS = 3
 370
 371 # Job queue
 372 JOB_QUEUE_VERSION = 1
 373 JOB_QUEUE_LOCK_FILE = QUEUE_DIR + "/lock"
 374 JOB_QUEUE_VERSION_FILE = QUEUE_DIR + "/version"
 375 JOB_QUEUE_SERIAL_FILE = QUEUE_DIR + "/serial"
 376 JOB_QUEUE_ARCHIVE_DIR = QUEUE_DIR + "/archive"
 377 JOB_QUEUE_DRAIN_FILE = QUEUE_DIR + "/drain"
 378 JOB_QUEUE_SIZE_HARD_LIMIT = 5000
 379 JOB_QUEUE_SIZE_SOFT_LIMIT = JOB_QUEUE_SIZE_HARD_LIMIT * 0.8
 380
 381 JOB_ID_TEMPLATE = r"\d+"
 382
 383 # unchanged job return
 384 JOB_NOTCHANGED = "nochange"
 385
 386 # Job status
 387 JOB_STATUS_QUEUED = "queued"
 388 JOB_STATUS_WAITLOCK = "waiting"
 389 JOB_STATUS_CANCELING = "canceling"
 390 JOB_STATUS_RUNNING = "running"
 391 JOB_STATUS_CANCELED = "canceled"
 392 JOB_STATUS_SUCCESS = "success"
 393 JOB_STATUS_ERROR = "error"
 394
 395 OP_STATUS_QUEUED = "queued"
 396 OP_STATUS_WAITLOCK = "waiting"
 397 OP_STATUS_CANCELING = "canceling"
 398 OP_STATUS_RUNNING = "running"
 399 OP_STATUS_CANCELED = "canceled"
 400 OP_STATUS_SUCCESS = "success"
 401 OP_STATUS_ERROR = "error"
 402
 403 # Execution log types
 404 ELOG_MESSAGE = "message"
 405 ELOG_PROGRESS = "progress"
 406
 407 # Temporary RAPI constants until we have cluster parameters
 408 RAPI_ENABLE = True
 409 RAPI_PORT = 5080
 410
 411 # max dynamic devices
 412 MAX_NICS = 8
 413 MAX_DISKS = 16
 414
 415 # SSCONF keys
 416 SS_CLUSTER_NAME = "cluster_name"
 417 SS_FILE_STORAGE_DIR = "file_storage_dir"
 418 SS_MASTER_CANDIDATES = "master_candidates"
 419 SS_MASTER_IP = "master_ip"
 420 SS_MASTER_NETDEV = "master_netdev"
 421 SS_MASTER_NODE = "master_node"
 422 SS_NODE_LIST = "node_list"
 423 SS_OFFLINE_NODES = "offline_nodes"
 424 SS_RELEASE_VERSION = "release_version"
 425
 426 # cluster wide default parameters
 427 DEFAULT_ENABLED_HYPERVISOR = HT_XEN_PVM
 428
 429 HVC_DEFAULTS = {
 430     HT_XEN_PVM: {
 431         HV_KERNEL_PATH: "/boot/vmlinuz-2.6-xenU",
 432         HV_INITRD_PATH: None,
 433         HV_ROOT_PATH: '/dev/sda',
 434         },
 435     HT_XEN_HVM: {
 436         HV_BOOT_ORDER: "cd",
 437         HV_CDROM_IMAGE_PATH: None,
 438         HV_NIC_TYPE: HT_HVM_NIC_RTL8139,
 439         HV_DISK_TYPE: HT_HVM_DEV_PARAVIRTUAL,
 440         HV_VNC_BIND_ADDRESS: '0.0.0.0',
 441         HV_ACPI: True,
 442         HV_PAE: True,
 443         },
 444     HT_KVM: {
 445         HV_KERNEL_PATH: "/boot/vmlinuz-2.6-kvmU",
 446         HV_INITRD_PATH: None,
 447         HV_ROOT_PATH: '/dev/vda',
 448         HV_ACPI: True,
 449         HV_SERIAL_CONSOLE: True,
 450         },
 451     HT_FAKE: {
 452         },
 453     }
 454
 455 BEC_DEFAULTS = {
 456     BE_MEMORY: 128,
 457     BE_VCPUS: 1,
 458     BE_AUTO_BALANCE: True,
 459     }
 460
 461 MASTER_POOL_SIZE_DEFAULT = 10