Source Code for Module ganeti.constants

   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  from ganeti import _vcsversion 
  28   
  29  # various versions 
  30  RELEASE_VERSION = _autoconf.PACKAGE_VERSION 
  31  OS_API_V10 = 10 
  32  OS_API_V15 = 15 
  33  OS_API_V20 = 20 
  34  OS_API_VERSIONS = frozenset([OS_API_V10, OS_API_V15, OS_API_V20]) 
  35  VCS_VERSION = _vcsversion.VCS_VERSION 
  36  EXPORT_VERSION = 0 
  37  RAPI_VERSION = 2 
  38   
  39   
  40  # Format for CONFIG_VERSION: 
  41  #   01 03 0123 = 01030123 
  42  #   ^^ ^^ ^^^^ 
  43  #   |  |  + Configuration version/revision 
  44  #   |  + Minor version 
  45  #   + Major version 
  46  # 
  47  # It stored as an integer. Make sure not to write an octal number. 
  48   
  49  # BuildVersion and SplitVersion must be in here because we can't import other 
  50  # modules. The cfgupgrade tool must be able to read and write version numbers 
  51  # and thus requires these functions. To avoid code duplication, they're kept in 
  52  # here. 
  53   
  54 -def BuildVersion(major, minor, revision): 
  55    """Calculates int version number from major, minor and revision numbers. 
  56   
  57    Returns: int representing version number 
  58   
  59    """ 
  60    assert isinstance(major, int) 
  61    assert isinstance(minor, int) 
  62    assert isinstance(revision, int) 
  63    return (1000000 * major + 
  64              10000 * minor + 
  65                  1 * revision) 
  66   
  67   
  68 -def SplitVersion(version): 
  69    """Splits version number stored in an int. 
  70   
  71    Returns: tuple; (major, minor, revision) 
  72   
  73    """ 
  74    assert isinstance(version, int) 
  75   
  76    (major, remainder) = divmod(version, 1000000) 
  77    (minor, revision) = divmod(remainder, 10000) 
  78   
  79    return (major, minor, revision) 
  80   
  81   
  82  CONFIG_MAJOR = int(_autoconf.VERSION_MAJOR) 
  83  CONFIG_MINOR = int(_autoconf.VERSION_MINOR) 
  84  CONFIG_REVISION = 0 
  85  CONFIG_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, CONFIG_REVISION) 
  86   
  87  #: RPC protocol version 
  88  PROTOCOL_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, 0) 
  89   
  90  # user separation 
  91  DAEMONS_GROUP = _autoconf.DAEMONS_GROUP 
  92  ADMIN_GROUP = _autoconf.ADMIN_GROUP 
  93  MASTERD_USER = _autoconf.MASTERD_USER 
  94  MASTERD_GROUP = _autoconf.MASTERD_GROUP 
  95  RAPI_USER = _autoconf.RAPI_USER 
  96  RAPI_GROUP = _autoconf.RAPI_GROUP 
  97  CONFD_USER = _autoconf.CONFD_USER 
  98  CONFD_GROUP = _autoconf.CONFD_GROUP 
  99  NODED_USER = _autoconf.NODED_USER 
 100  NODED_GROUP = _autoconf.NODED_GROUP 
 101   
 102   
 103  # Wipe 
 104  DD_CMD = "dd" 
 105  WIPE_BLOCK_SIZE = 1024 ** 2 
 106  MAX_WIPE_CHUNK = 1024 # 1GB 
 107  MIN_WIPE_CHUNK_PERCENT = 10 
 108   
 109   
 110  # file paths 
 111  DATA_DIR = _autoconf.LOCALSTATEDIR + "/lib/ganeti" 
 112  RUN_DIR = _autoconf.LOCALSTATEDIR + "/run" 
 113  RUN_GANETI_DIR = RUN_DIR + "/ganeti" 
 114  BDEV_CACHE_DIR = RUN_GANETI_DIR + "/bdev-cache" 
 115  DISK_LINKS_DIR = RUN_GANETI_DIR + "/instance-disks" 
 116  RUN_DIRS_MODE = 0775 
 117  SOCKET_DIR = RUN_GANETI_DIR + "/socket" 
 118  SECURE_DIR_MODE = 0700 
 119  SECURE_FILE_MODE = 0600 
 120  SOCKET_DIR_MODE = 0750 
 121  CRYPTO_KEYS_DIR = RUN_GANETI_DIR + "/crypto" 
 122  CRYPTO_KEYS_DIR_MODE = SECURE_DIR_MODE 
 123  IMPORT_EXPORT_DIR = RUN_GANETI_DIR + "/import-export" 
 124  IMPORT_EXPORT_DIR_MODE = 0755 
 125  ADOPTABLE_BLOCKDEV_ROOT = "/dev/disk/" 
 126  # keep RUN_GANETI_DIR first here, to make sure all get created when the node 
 127  # daemon is started (this takes care of RUN_DIR being tmpfs) 
 128  SUB_RUN_DIRS = [ 
 129    RUN_GANETI_DIR, 
 130    BDEV_CACHE_DIR, 
 131    DISK_LINKS_DIR, 
 132    ] 
 133  LOCK_DIR = _autoconf.LOCALSTATEDIR + "/lock" 
 134  SSCONF_LOCK_FILE = LOCK_DIR + "/ganeti-ssconf.lock" 
 135  # User-id pool lock directory 
 136  # The user-ids that are in use have a corresponding lock file in this directory 
 137  UIDPOOL_LOCKDIR = RUN_GANETI_DIR + "/uid-pool" 
 138  CLUSTER_CONF_FILE = DATA_DIR + "/config.data" 
 139  NODED_CERT_FILE = DATA_DIR + "/server.pem" 
 140  RAPI_CERT_FILE = DATA_DIR + "/rapi.pem" 
 141  CONFD_HMAC_KEY = DATA_DIR + "/hmac.key" 
 142  CLUSTER_DOMAIN_SECRET_FILE = DATA_DIR + "/cluster-domain-secret" 
 143  INSTANCE_STATUS_FILE = RUN_GANETI_DIR + "/instance-status" 
 144  SSH_KNOWN_HOSTS_FILE = DATA_DIR + "/known_hosts" 
 145  RAPI_USERS_FILE = DATA_DIR + "/rapi/users" 
 146  QUEUE_DIR = DATA_DIR + "/queue" 
 147  DAEMON_UTIL = _autoconf.PKGLIBDIR + "/daemon-util" 
 148  SETUP_SSH = _autoconf.TOOLSDIR + "/setup-ssh" 
 149  KVM_IFUP = _autoconf.PKGLIBDIR + "/kvm-ifup" 
 150  KVM_CONSOLE_WRAPPER = _autoconf.PKGLIBDIR + "/tools/kvm-console-wrapper" 
 151  XM_CONSOLE_WRAPPER = _autoconf.PKGLIBDIR + "/tools/xm-console-wrapper" 
 152  ETC_HOSTS = "/etc/hosts" 
 153  DEFAULT_FILE_STORAGE_DIR = _autoconf.FILE_STORAGE_DIR 
 154  DEFAULT_SHARED_FILE_STORAGE_DIR = _autoconf.SHARED_FILE_STORAGE_DIR 
 155  ENABLE_FILE_STORAGE = _autoconf.ENABLE_FILE_STORAGE 
 156  ENABLE_SHARED_FILE_STORAGE = _autoconf.ENABLE_SHARED_FILE_STORAGE 
 157  SYSCONFDIR = _autoconf.SYSCONFDIR 
 158  TOOLSDIR = _autoconf.TOOLSDIR 
 159  CONF_DIR = SYSCONFDIR + "/ganeti" 
 160   
 161  #: Lock file for watcher, locked in shared mode by watcher; lock in exclusive 
 162  # mode to block watcher (see L{cli._RunWhileClusterStoppedHelper.Call} 
 163  WATCHER_LOCK_FILE = LOCK_DIR + "/ganeti-watcher.lock" 
 164   
 165  #: Status file for per-group watcher, locked in exclusive mode by watcher 
 166  WATCHER_GROUP_STATE_FILE = DATA_DIR + "/watcher.%s.data" 
 167   
 168  #: File for per-group instance status, merged into L{INSTANCE_STATUS_FILE} by 
 169  #: per-group processes 
 170  WATCHER_GROUP_INSTANCE_STATUS_FILE = DATA_DIR + "/watcher.%s.instance-status" 
 171   
 172  #: File containing Unix timestamp until which watcher should be paused 
 173  WATCHER_PAUSEFILE = DATA_DIR + "/watcher.pause" 
 174   
 175  ALL_CERT_FILES = frozenset([NODED_CERT_FILE, RAPI_CERT_FILE]) 
 176   
 177  MASTER_SOCKET = SOCKET_DIR + "/ganeti-master" 
 178   
 179  NODED = "ganeti-noded" 
 180  CONFD = "ganeti-confd" 
 181  RAPI = "ganeti-rapi" 
 182  MASTERD = "ganeti-masterd" 
 183  # used in the ganeti-nbma project 
 184  NLD = "ganeti-nld" 
 185   
 186  DAEMONS_PORTS = { 
 187    # daemon-name: ("proto", "default-port") 
 188    NODED: ("tcp", 1811), 
 189    CONFD: ("udp", 1814), 
 190    RAPI: ("tcp", 5080), 
 191    "ssh": ("tcp", 22), 
 192    # used in the ganeti-nbma project 
 193    NLD: ("udp", 1816), 
 194  } 
 195  DEFAULT_NODED_PORT = DAEMONS_PORTS[NODED][1] 
 196  DEFAULT_CONFD_PORT = DAEMONS_PORTS[CONFD][1] 
 197  DEFAULT_RAPI_PORT = DAEMONS_PORTS[RAPI][1] 
 198  # used in the ganeti-nbma project 
 199  DEFAULT_NLD_PORT = DAEMONS_PORTS[NLD][1] 
 200   
 201  FIRST_DRBD_PORT = 11000 
 202  LAST_DRBD_PORT = 14999 
 203  MASTER_SCRIPT = "ganeti-master" 
 204   
 205  LOG_DIR = _autoconf.LOCALSTATEDIR + "/log/ganeti/" 
 206  DAEMONS_LOGFILES = { 
 207    # "daemon-name": "logfile" 
 208    NODED: LOG_DIR + "node-daemon.log", 
 209    CONFD: LOG_DIR + "conf-daemon.log", 
 210    RAPI: LOG_DIR + "rapi-daemon.log", 
 211    MASTERD: LOG_DIR + "master-daemon.log", 
 212    # used in the ganeti-nbma project 
 213    NLD: LOG_DIR + "nl-daemon.log", 
 214    } 
 215   
 216  LOG_OS_DIR = LOG_DIR + "os" 
 217  LOG_WATCHER = LOG_DIR + "watcher.log" 
 218  LOG_COMMANDS = LOG_DIR + "commands.log" 
 219  LOG_BURNIN = LOG_DIR + "burnin.log" 
 220  LOG_SETUP_SSH = LOG_DIR + "setup-ssh.log" 
 221   
 222  DEV_CONSOLE = "/dev/console" 
 223   
 224  PROC_MOUNTS = "/proc/mounts" 
 225   
 226  # Local UniX Interface related constants 
 227  LUXI_EOM = "\3" 
 228  LUXI_VERSION = CONFIG_VERSION 
 229   
 230  # one of "no", "yes", "only" 
 231  SYSLOG_USAGE = _autoconf.SYSLOG_USAGE 
 232  SYSLOG_NO = "no" 
 233  SYSLOG_YES = "yes" 
 234  SYSLOG_ONLY = "only" 
 235  SYSLOG_SOCKET = "/dev/log" 
 236   
 237  OS_SEARCH_PATH = _autoconf.OS_SEARCH_PATH 
 238  EXPORT_DIR = _autoconf.EXPORT_DIR 
 239   
 240  EXPORT_CONF_FILE = "config.ini" 
 241   
 242  XEN_BOOTLOADER = _autoconf.XEN_BOOTLOADER 
 243  XEN_KERNEL = _autoconf.XEN_KERNEL 
 244  XEN_INITRD = _autoconf.XEN_INITRD 
 245   
 246  KVM_PATH = _autoconf.KVM_PATH 
 247  SOCAT_PATH = _autoconf.SOCAT_PATH 
 248  SOCAT_USE_ESCAPE = _autoconf.SOCAT_USE_ESCAPE 
 249  SOCAT_USE_COMPRESS = _autoconf.SOCAT_USE_COMPRESS 
 250  SOCAT_ESCAPE_CODE = "0x1d" 
 251   
 252  #: Console as SSH command 
 253  CONS_SSH = "ssh" 
 254   
 255  #: Console as VNC server 
 256  CONS_VNC = "vnc" 
 257   
 258  #: Display a message for console access 
 259  CONS_MESSAGE = "msg" 
 260   
 261  #: All console types 
 262  CONS_ALL = frozenset([CONS_SSH, CONS_VNC, CONS_MESSAGE]) 
 263   
 264  # For RSA keys more bits are better, but they also make operations more 
 265  # expensive. NIST SP 800-131 recommends a minimum of 2048 bits from the year 
 266  # 2010 on. 
 267  RSA_KEY_BITS = 2048 
 268   
 269  # Ciphers allowed for SSL connections. For the format, see ciphers(1). A better 
 270  # way to disable ciphers would be to use the exclamation mark (!), but socat 
 271  # versions below 1.5 can't parse exclamation marks in options properly. When 
 272  # modifying the ciphers, ensure not to accidentially add something after it's 
 273  # been removed. Use the "openssl" utility to check the allowed ciphers, e.g. 
 274  # "openssl ciphers -v HIGH:-DES". 
 275  OPENSSL_CIPHERS = "HIGH:-DES:-3DES:-EXPORT:-ADH" 
 276   
 277  # Digest used to sign certificates ("openssl x509" uses SHA1 by default) 
 278  X509_CERT_SIGN_DIGEST = "SHA1" 
 279   
 280  # Default validity of certificates in days 
 281  X509_CERT_DEFAULT_VALIDITY = 365 * 5 
 282   
 283  # commonName (CN) used in certificates 
 284  X509_CERT_CN = "ganeti.example.com" 
 285   
 286  X509_CERT_SIGNATURE_HEADER = "X-Ganeti-Signature" 
 287   
 288  IMPORT_EXPORT_DAEMON = _autoconf.PKGLIBDIR + "/import-export" 
 289   
 290  # Import/export daemon mode 
 291  IEM_IMPORT = "import" 
 292  IEM_EXPORT = "export" 
 293   
 294  # Import/export transport compression 
 295  IEC_NONE = "none" 
 296  IEC_GZIP = "gzip" 
 297  IEC_ALL = frozenset([ 
 298    IEC_NONE, 
 299    IEC_GZIP, 
 300    ]) 
 301   
 302  IE_CUSTOM_SIZE = "fd" 
 303   
 304  IE_MAGIC_RE = re.compile(r"^[-_.a-zA-Z0-9]{5,100}$") 
 305   
 306  # Import/export I/O 
 307  # Direct file I/O, equivalent to a shell's I/O redirection using '<' or '>' 
 308  IEIO_FILE = "file" 
 309  # Raw block device I/O using "dd" 
 310  IEIO_RAW_DISK = "raw" 
 311  # OS definition import/export script 
 312  IEIO_SCRIPT = "script" 
 313   
 314  VALUE_DEFAULT = "default" 
 315  VALUE_AUTO = "auto" 
 316  VALUE_GENERATE = "generate" 
 317  VALUE_NONE = "none" 
 318  VALUE_TRUE = "true" 
 319  VALUE_FALSE = "false" 
 320   
 321  # External script validation mask 
 322  EXT_PLUGIN_MASK = re.compile("^[a-zA-Z0-9_-]+$") 
 323   
 324  # hooks-related constants 
 325  HOOKS_BASE_DIR = CONF_DIR + "/hooks" 
 326  HOOKS_PHASE_PRE = "pre" 
 327  HOOKS_PHASE_POST = "post" 
 328  HOOKS_NAME_CFGUPDATE = "config-update" 
 329  HOOKS_NAME_WATCHER = "watcher" 
 330  HOOKS_VERSION = 2 
 331  HOOKS_PATH = "/sbin:/bin:/usr/sbin:/usr/bin" 
 332   
 333  # hooks subject type (what object type does the LU deal with) 
 334  HTYPE_CLUSTER = "CLUSTER" 
 335  HTYPE_NODE = "NODE" 
 336  HTYPE_GROUP = "GROUP" 
 337  HTYPE_INSTANCE = "INSTANCE" 
 338   
 339  HKR_SKIP = 0 
 340  HKR_FAIL = 1 
 341  HKR_SUCCESS = 2 
 342   
 343  # Storage types 
 344  ST_FILE = "file" 
 345  ST_LVM_PV = "lvm-pv" 
 346  ST_LVM_VG = "lvm-vg" 
 347   
 348  # Storage fields 
 349  # first two are valid in LU context only, not passed to backend 
 350  SF_NODE = "node" 
 351  SF_TYPE = "type" 
 352  # and the rest are valid in backend 
 353  SF_NAME = "name" 
 354  SF_SIZE = "size" 
 355  SF_FREE = "free" 
 356  SF_USED = "used" 
 357  SF_ALLOCATABLE = "allocatable" 
 358   
 359  # Storage operations 
 360  SO_FIX_CONSISTENCY = "fix-consistency" 
 361   
 362  # Available fields per storage type 
 363  VALID_STORAGE_FIELDS = frozenset([ 
 364    SF_NAME, 
 365    SF_TYPE, 
 366    SF_SIZE, 
 367    SF_USED, 
 368    SF_FREE, 
 369    SF_ALLOCATABLE 
 370    ]) 
 371   
 372  VALID_STORAGE_TYPES = frozenset([ST_FILE, ST_LVM_PV, ST_LVM_VG]) 
 373   
 374  MODIFIABLE_STORAGE_FIELDS = { 
 375    ST_LVM_PV: frozenset([SF_ALLOCATABLE]), 
 376    } 
 377   
 378  VALID_STORAGE_OPERATIONS = { 
 379    ST_LVM_VG: frozenset([SO_FIX_CONSISTENCY]), 
 380    } 
 381   
 382  # Local disk status 
 383  # Note: Code depends on LDS_OKAY < LDS_UNKNOWN < LDS_FAULTY 
 384  (LDS_OKAY, 
 385   LDS_UNKNOWN, 
 386   LDS_FAULTY) = range(1, 4) 
 387   
 388  # disk template types 
 389  DT_DISKLESS = "diskless" 
 390  DT_PLAIN = "plain" 
 391  DT_DRBD8 = "drbd" 
 392  DT_FILE = "file" 
 393  DT_SHARED_FILE = "sharedfile" 
 394  DT_BLOCK = "blockdev" 
 395   
 396  # the set of network-mirrored disk templates 
 397  DTS_INT_MIRROR = frozenset([DT_DRBD8]) 
 398   
 399  # the set of externally-mirrored disk templates (e.g. SAN, NAS) 
 400  DTS_EXT_MIRROR = frozenset([DT_SHARED_FILE, DT_BLOCK]) 
 401   
 402  # the set of non-lvm-based disk templates 
 403  DTS_NOT_LVM = frozenset([DT_DISKLESS, DT_FILE, DT_SHARED_FILE, DT_BLOCK]) 
 404   
 405  # the set of disk templates which can be grown 
 406  DTS_GROWABLE = frozenset([DT_PLAIN, DT_DRBD8, DT_FILE, DT_SHARED_FILE]) 
 407   
 408  # the set of disk templates that allow adoption 
 409  DTS_MAY_ADOPT = frozenset([DT_PLAIN, DT_BLOCK]) 
 410   
 411  # the set of disk templates that *must* use adoption 
 412  DTS_MUST_ADOPT = frozenset([DT_BLOCK]) 
 413   
 414  # the set of disk templates that allow migrations 
 415  DTS_MIRRORED = frozenset.union(DTS_INT_MIRROR, DTS_EXT_MIRROR) 
 416   
 417  # the set of file based disk templates 
 418  DTS_FILEBASED = frozenset([DT_FILE, DT_SHARED_FILE]) 
 419   
 420  # logical disk types 
 421  LD_LV = "lvm" 
 422  LD_DRBD8 = "drbd8" 
 423  LD_FILE = "file" 
 424  LD_BLOCKDEV = "blockdev" 
 425  LDS_BLOCK = frozenset([LD_LV, LD_DRBD8, LD_BLOCKDEV]) 
 426   
 427  # drbd constants 
 428  DRBD_HMAC_ALG = "md5" 
 429  DRBD_NET_PROTOCOL = "C" 
 430  DRBD_BARRIERS = _autoconf.DRBD_BARRIERS 
 431   
 432  # file backend driver 
 433  FD_LOOP = "loop" 
 434  FD_BLKTAP = "blktap" 
 435   
 436  # the set of drbd-like disk types 
 437  LDS_DRBD = frozenset([LD_DRBD8]) 
 438   
 439  # disk access mode 
 440  DISK_RDONLY = "ro" 
 441  DISK_RDWR = "rw" 
 442  DISK_ACCESS_SET = frozenset([DISK_RDONLY, DISK_RDWR]) 
 443   
 444  # disk replacement mode 
 445  REPLACE_DISK_PRI = "replace_on_primary"    # replace disks on primary 
 446  REPLACE_DISK_SEC = "replace_on_secondary"  # replace disks on secondary 
 447  REPLACE_DISK_CHG = "replace_new_secondary" # change secondary node 
 448  REPLACE_DISK_AUTO = "replace_auto" 
 449  REPLACE_MODES = frozenset([ 
 450    REPLACE_DISK_PRI, 
 451    REPLACE_DISK_SEC, 
 452    REPLACE_DISK_CHG, 
 453    REPLACE_DISK_AUTO, 
 454    ]) 
 455   
 456  # Instance export mode 
 457  EXPORT_MODE_LOCAL = "local" 
 458  EXPORT_MODE_REMOTE = "remote" 
 459  EXPORT_MODES = frozenset([ 
 460    EXPORT_MODE_LOCAL, 
 461    EXPORT_MODE_REMOTE, 
 462    ]) 
 463   
 464  # Lock recalculate mode 
 465  LOCKS_REPLACE = "replace" 
 466  LOCKS_APPEND = "append" 
 467   
 468  # Lock timeout (sum) before we should go into blocking acquire (still 
 469  # can be reset by priority change); computed as max time (10 hours) 
 470  # before we should actually go into blocking acquire given that we 
 471  # start from default priority level; in seconds 
 472  LOCK_ATTEMPTS_TIMEOUT = 10 * 3600 / 20.0 
 473  LOCK_ATTEMPTS_MAXWAIT = 15.0 
 474  LOCK_ATTEMPTS_MINWAIT = 1.0 
 475   
 476  # instance creation modes 
 477  INSTANCE_CREATE = "create" 
 478  INSTANCE_IMPORT = "import" 
 479  INSTANCE_REMOTE_IMPORT = "remote-import" 
 480  INSTANCE_CREATE_MODES = frozenset([ 
 481    INSTANCE_CREATE, 
 482    INSTANCE_IMPORT, 
 483    INSTANCE_REMOTE_IMPORT, 
 484    ]) 
 485   
 486  # Remote import/export handshake message and version 
 487  RIE_VERSION = 0 
 488  RIE_HANDSHAKE = "Hi, I'm Ganeti" 
 489   
 490  # Remote import/export certificate validity in seconds 
 491  RIE_CERT_VALIDITY = 24 * 60 * 60 
 492   
 493  # Overall timeout for establishing connection 
 494  RIE_CONNECT_TIMEOUT = 180 
 495   
 496  # Export only: how long to wait per connection attempt (seconds) 
 497  RIE_CONNECT_ATTEMPT_TIMEOUT = 20 
 498   
 499  # Export only: number of attempts to connect 
 500  RIE_CONNECT_RETRIES = 10 
 501   
 502  #: Give child process up to 5 seconds to exit after sending a signal 
 503  CHILD_LINGER_TIMEOUT = 5.0 
 504   
 505  DISK_TEMPLATES = frozenset([ 
 506    DT_DISKLESS, 
 507    DT_PLAIN, 
 508    DT_DRBD8, 
 509    DT_FILE, 
 510    DT_SHARED_FILE, 
 511    DT_BLOCK 
 512    ]) 
 513   
 514  FILE_DRIVER = frozenset([FD_LOOP, FD_BLKTAP]) 
 515   
 516  # import/export config options 
 517  INISECT_EXP = "export" 
 518  INISECT_INS = "instance" 
 519  INISECT_HYP = "hypervisor" 
 520  INISECT_BEP = "backend" 
 521  INISECT_OSP = "os" 
 522   
 523  # dynamic device modification 
 524  DDM_ADD = "add" 
 525  DDM_REMOVE = "remove" 
 526  DDMS_VALUES = frozenset([DDM_ADD, DDM_REMOVE]) 
 527   
 528  # common exit codes 
 529  EXIT_SUCCESS = 0 
 530  EXIT_FAILURE = 1 
 531  EXIT_NOTCLUSTER = 5 
 532  EXIT_NOTMASTER = 11 
 533  EXIT_NODESETUP_ERROR = 12 
 534  EXIT_CONFIRMATION = 13 # need user confirmation 
 535   
 536  #: Exit code for query operations with unknown fields 
 537  EXIT_UNKNOWN_FIELD = 14 
 538   
 539  # tags 
 540  TAG_CLUSTER = "cluster" 
 541  TAG_NODEGROUP = "nodegroup" 
 542  TAG_NODE = "node" 
 543  TAG_INSTANCE = "instance" 
 544  VALID_TAG_TYPES = frozenset([ 
 545    TAG_CLUSTER, 
 546    TAG_NODEGROUP, 
 547    TAG_NODE, 
 548    TAG_INSTANCE, 
 549    ]) 
 550  MAX_TAG_LEN = 128 
 551  MAX_TAGS_PER_OBJ = 4096 
 552   
 553  # others 
 554  DEFAULT_BRIDGE = "xen-br0" 
 555  SYNC_SPEED = 60 * 1024 
 556  IP4_ADDRESS_LOCALHOST = "127.0.0.1" 
 557  IP4_ADDRESS_ANY = "0.0.0.0" 
 558  IP6_ADDRESS_LOCALHOST = "::1" 
 559  IP6_ADDRESS_ANY = "::" 
 560  IP4_VERSION = 4 
 561  IP6_VERSION = 6 
 562  VALID_IP_VERSIONS = frozenset([IP4_VERSION, IP6_VERSION]) 
 563  TCP_PING_TIMEOUT = 10 
 564  GANETI_RUNAS = "root" 
 565  DEFAULT_VG = "xenvg" 
 566  DEFAULT_DRBD_HELPER = "/bin/true" 
 567  MIN_VG_SIZE = 20480 
 568  DEFAULT_MAC_PREFIX = "aa:00:00" 
 569  LVM_STRIPECOUNT = _autoconf.LVM_STRIPECOUNT 
 570  # default maximum instance wait time, in seconds. 
 571  DEFAULT_SHUTDOWN_TIMEOUT = 120 
 572  NODE_MAX_CLOCK_SKEW = 150 
 573  # Time for an intra-cluster disk transfer to wait for a connection 
 574  DISK_TRANSFER_CONNECT_TIMEOUT = 60 
 575  # Disk index separator 
 576  DISK_SEPARATOR = _autoconf.DISK_SEPARATOR 
 577  IP_COMMAND_PATH = _autoconf.IP_PATH 
 578   
 579  #: Key for job IDs in opcode result 
 580  JOB_IDS_KEY = "jobs" 
 581   
 582  # runparts results 
 583  (RUNPARTS_SKIP, 
 584   RUNPARTS_RUN, 
 585   RUNPARTS_ERR) = range(3) 
 586   
 587  RUNPARTS_STATUS = frozenset([RUNPARTS_SKIP, RUNPARTS_RUN, RUNPARTS_ERR]) 
 588   
 589  # RPC constants 
 590  (RPC_ENCODING_NONE, 
 591   RPC_ENCODING_ZLIB_BASE64) = range(2) 
 592   
 593  # os related constants 
 594  OS_SCRIPT_CREATE = "create" 
 595  OS_SCRIPT_IMPORT = "import" 
 596  OS_SCRIPT_EXPORT = "export" 
 597  OS_SCRIPT_RENAME = "rename" 
 598  OS_SCRIPT_VERIFY = "verify" 
 599  OS_SCRIPTS = frozenset([ 
 600    OS_SCRIPT_CREATE, 
 601    OS_SCRIPT_IMPORT, 
 602    OS_SCRIPT_EXPORT, 
 603    OS_SCRIPT_RENAME, 
 604    OS_SCRIPT_VERIFY 
 605    ]) 
 606   
 607  OS_API_FILE = "ganeti_api_version" 
 608  OS_VARIANTS_FILE = "variants.list" 
 609  OS_PARAMETERS_FILE = "parameters.list" 
 610   
 611  OS_VALIDATE_PARAMETERS = "parameters" 
 612  OS_VALIDATE_CALLS = frozenset([OS_VALIDATE_PARAMETERS]) 
 613   
 614  # ssh constants 
 615  SSH_CONFIG_DIR = _autoconf.SSH_CONFIG_DIR 
 616  SSH_HOST_DSA_PRIV = SSH_CONFIG_DIR + "/ssh_host_dsa_key" 
 617  SSH_HOST_DSA_PUB = SSH_HOST_DSA_PRIV + ".pub" 
 618  SSH_HOST_RSA_PRIV = SSH_CONFIG_DIR + "/ssh_host_rsa_key" 
 619  SSH_HOST_RSA_PUB = SSH_HOST_RSA_PRIV + ".pub" 
 620  SSH = "ssh" 
 621  SCP = "scp" 
 622   
 623  # reboot types 
 624  INSTANCE_REBOOT_SOFT = "soft" 
 625  INSTANCE_REBOOT_HARD = "hard" 
 626  INSTANCE_REBOOT_FULL = "full" 
 627   
 628  REBOOT_TYPES = frozenset([ 
 629    INSTANCE_REBOOT_SOFT, 
 630    INSTANCE_REBOOT_HARD, 
 631    INSTANCE_REBOOT_FULL 
 632    ]) 
 633   
 634  # instance reboot behaviors 
 635  INSTANCE_REBOOT_ALLOWED = "reboot" 
 636  INSTANCE_REBOOT_EXIT = "exit" 
 637   
 638  REBOOT_BEHAVIORS = frozenset([ 
 639    INSTANCE_REBOOT_ALLOWED, 
 640    INSTANCE_REBOOT_EXIT 
 641    ]) 
 642   
 643  VTYPE_STRING = "string" 
 644  VTYPE_MAYBE_STRING = "maybe-string" 
 645  VTYPE_BOOL = "bool" 
 646  VTYPE_SIZE = "size" # size, in MiBs 
 647  VTYPE_INT = "int" 
 648  ENFORCEABLE_TYPES = frozenset([ 
 649    VTYPE_STRING, 
 650    VTYPE_MAYBE_STRING, 
 651    VTYPE_BOOL, 
 652    VTYPE_SIZE, 
 653    VTYPE_INT, 
 654    ]) 
 655   
 656  # Constant representing that the user does not specify any IP version 
 657  IFACE_NO_IP_VERSION_SPECIFIED = 0 
 658   
 659  # HV parameter names (global namespace) 
 660  HV_BOOT_ORDER = "boot_order" 
 661  HV_CDROM_IMAGE_PATH = "cdrom_image_path" 
 662  HV_KVM_CDROM2_IMAGE_PATH = "cdrom2_image_path" 
 663  HV_KVM_FLOPPY_IMAGE_PATH = "floppy_image_path" 
 664  HV_NIC_TYPE = "nic_type" 
 665  HV_DISK_TYPE = "disk_type" 
 666  HV_KVM_CDROM_DISK_TYPE = "cdrom_disk_type" 
 667  HV_VNC_BIND_ADDRESS = "vnc_bind_address" 
 668  HV_VNC_PASSWORD_FILE = "vnc_password_file" 
 669  HV_VNC_TLS = "vnc_tls" 
 670  HV_VNC_X509 = "vnc_x509_path" 
 671  HV_VNC_X509_VERIFY = "vnc_x509_verify" 
 672  HV_KVM_SPICE_BIND = "spice_bind" 
 673  HV_KVM_SPICE_IP_VERSION = "spice_ip_version" 
 674  HV_ACPI = "acpi" 
 675  HV_PAE = "pae" 
 676  HV_USE_BOOTLOADER = "use_bootloader" 
 677  HV_BOOTLOADER_ARGS = "bootloader_args" 
 678  HV_BOOTLOADER_PATH = "bootloader_path" 
 679  HV_KERNEL_ARGS = "kernel_args" 
 680  HV_KERNEL_PATH = "kernel_path" 
 681  HV_INITRD_PATH = "initrd_path" 
 682  HV_ROOT_PATH = "root_path" 
 683  HV_SERIAL_CONSOLE = "serial_console" 
 684  HV_USB_MOUSE = "usb_mouse" 
 685  HV_KEYMAP = "keymap" 
 686  HV_DEVICE_MODEL = "device_model" 
 687  HV_INIT_SCRIPT = "init_script" 
 688  HV_MIGRATION_PORT = "migration_port" 
 689  HV_MIGRATION_BANDWIDTH = "migration_bandwidth" 
 690  HV_MIGRATION_DOWNTIME = "migration_downtime" 
 691  HV_MIGRATION_MODE = "migration_mode" 
 692  HV_USE_LOCALTIME = "use_localtime" 
 693  HV_DISK_CACHE = "disk_cache" 
 694  HV_SECURITY_MODEL = "security_model" 
 695  HV_SECURITY_DOMAIN = "security_domain" 
 696  HV_KVM_FLAG = "kvm_flag" 
 697  HV_VHOST_NET = "vhost_net" 
 698  HV_KVM_USE_CHROOT = "use_chroot" 
 699  HV_CPU_MASK = "cpu_mask" 
 700  HV_MEM_PATH = "mem_path" 
 701  HV_BLOCKDEV_PREFIX = "blockdev_prefix" 
 702  HV_REBOOT_BEHAVIOR = "reboot_behavior" 
 703   
 704  HVS_PARAMETER_TYPES = { 
 705    HV_BOOT_ORDER: VTYPE_STRING, 
 706    HV_KVM_FLOPPY_IMAGE_PATH: VTYPE_STRING, 
 707    HV_CDROM_IMAGE_PATH: VTYPE_STRING, 
 708    HV_KVM_CDROM2_IMAGE_PATH: VTYPE_STRING, 
 709    HV_NIC_TYPE: VTYPE_STRING, 
 710    HV_DISK_TYPE: VTYPE_STRING, 
 711    HV_KVM_CDROM_DISK_TYPE: VTYPE_STRING, 
 712    HV_VNC_PASSWORD_FILE: VTYPE_STRING, 
 713    HV_VNC_BIND_ADDRESS: VTYPE_STRING, 
 714    HV_VNC_TLS: VTYPE_BOOL, 
 715    HV_VNC_X509: VTYPE_STRING, 
 716    HV_VNC_X509_VERIFY: VTYPE_BOOL, 
 717    HV_KVM_SPICE_BIND: VTYPE_STRING, 
 718    HV_KVM_SPICE_IP_VERSION: VTYPE_INT, 
 719    HV_ACPI: VTYPE_BOOL, 
 720    HV_PAE: VTYPE_BOOL, 
 721    HV_USE_BOOTLOADER: VTYPE_BOOL, 
 722    HV_BOOTLOADER_PATH: VTYPE_STRING, 
 723    HV_BOOTLOADER_ARGS: VTYPE_STRING, 
 724    HV_KERNEL_PATH: VTYPE_STRING, 
 725    HV_KERNEL_ARGS: VTYPE_STRING, 
 726    HV_INITRD_PATH: VTYPE_STRING, 
 727    HV_ROOT_PATH: VTYPE_MAYBE_STRING, 
 728    HV_SERIAL_CONSOLE: VTYPE_BOOL, 
 729    HV_USB_MOUSE: VTYPE_STRING, 
 730    HV_KEYMAP: VTYPE_STRING, 
 731    HV_DEVICE_MODEL: VTYPE_STRING, 
 732    HV_INIT_SCRIPT: VTYPE_STRING, 
 733    HV_MIGRATION_PORT: VTYPE_INT, 
 734    HV_MIGRATION_BANDWIDTH: VTYPE_INT, 
 735    HV_MIGRATION_DOWNTIME: VTYPE_INT, 
 736    HV_MIGRATION_MODE: VTYPE_STRING, 
 737    HV_USE_LOCALTIME: VTYPE_BOOL, 
 738    HV_DISK_CACHE: VTYPE_STRING, 
 739    HV_SECURITY_MODEL: VTYPE_STRING, 
 740    HV_SECURITY_DOMAIN: VTYPE_STRING, 
 741    HV_KVM_FLAG: VTYPE_STRING, 
 742    HV_VHOST_NET: VTYPE_BOOL, 
 743    HV_KVM_USE_CHROOT: VTYPE_BOOL, 
 744    HV_CPU_MASK: VTYPE_STRING, 
 745    HV_MEM_PATH: VTYPE_STRING, 
 746    HV_BLOCKDEV_PREFIX: VTYPE_STRING, 
 747    HV_REBOOT_BEHAVIOR: VTYPE_STRING, 
 748    } 
 749   
 750  HVS_PARAMETERS = frozenset(HVS_PARAMETER_TYPES.keys()) 
 751   
 752  # Backend parameter names 
 753  BE_MEMORY = "memory" 
 754  BE_VCPUS = "vcpus" 
 755  BE_AUTO_BALANCE = "auto_balance" 
 756   
 757  BES_PARAMETER_TYPES = { 
 758      BE_MEMORY: VTYPE_SIZE, 
 759      BE_VCPUS: VTYPE_INT, 
 760      BE_AUTO_BALANCE: VTYPE_BOOL, 
 761      } 
 762   
 763  BES_PARAMETERS = frozenset(BES_PARAMETER_TYPES.keys()) 
 764   
 765  # Node parameter names 
 766  ND_OOB_PROGRAM = "oob_program" 
 767   
 768  NDS_PARAMETER_TYPES = { 
 769      ND_OOB_PROGRAM: VTYPE_MAYBE_STRING, 
 770      } 
 771   
 772  NDS_PARAMETERS = frozenset(NDS_PARAMETER_TYPES.keys()) 
 773   
 774  # OOB supported commands 
 775  OOB_POWER_ON = "power-on" 
 776  OOB_POWER_OFF = "power-off" 
 777  OOB_POWER_CYCLE = "power-cycle" 
 778  OOB_POWER_STATUS = "power-status" 
 779  OOB_HEALTH = "health" 
 780   
 781  OOB_COMMANDS = frozenset([ 
 782    OOB_POWER_ON, 
 783    OOB_POWER_OFF, 
 784    OOB_POWER_CYCLE, 
 785    OOB_POWER_STATUS, 
 786    OOB_HEALTH 
 787    ]) 
 788   
 789  OOB_POWER_STATUS_POWERED = "powered" 
 790   
 791  OOB_TIMEOUT = 60 # 60 seconds 
 792  OOB_POWER_DELAY = 2.0 # 2 seconds 
 793   
 794  OOB_STATUS_OK = "OK" 
 795  OOB_STATUS_WARNING = "WARNING" 
 796  OOB_STATUS_CRITICAL = "CRITICAL" 
 797  OOB_STATUS_UNKNOWN = "UNKNOWN" 
 798   
 799  OOB_STATUSES = frozenset([ 
 800    OOB_STATUS_OK, 
 801    OOB_STATUS_WARNING, 
 802    OOB_STATUS_CRITICAL, 
 803    OOB_STATUS_UNKNOWN, 
 804    ]) 
 805   
 806  # Instance Parameters Profile 
 807  PP_DEFAULT = "default" 
 808   
 809  # NIC_* constants are used inside the ganeti config 
 810  NIC_MODE = "mode" 
 811  NIC_LINK = "link" 
 812   
 813  NIC_MODE_BRIDGED = "bridged" 
 814  NIC_MODE_ROUTED = "routed" 
 815   
 816  NIC_VALID_MODES = frozenset([NIC_MODE_BRIDGED, NIC_MODE_ROUTED]) 
 817   
 818  NICS_PARAMETER_TYPES = { 
 819      NIC_MODE: VTYPE_STRING, 
 820      NIC_LINK: VTYPE_STRING, 
 821      } 
 822   
 823  NICS_PARAMETERS = frozenset(NICS_PARAMETER_TYPES.keys()) 
 824   
 825  # IDISK_* constants are used in opcodes, to create/change disks 
 826  IDISK_SIZE = "size" 
 827  IDISK_MODE = "mode" 
 828  IDISK_ADOPT = "adopt" 
 829  IDISK_VG = "vg" 
 830  IDISK_METAVG = "metavg" 
 831  IDISK_PARAMS_TYPES = { 
 832    IDISK_SIZE: VTYPE_SIZE, 
 833    IDISK_MODE: VTYPE_STRING, 
 834    IDISK_ADOPT: VTYPE_STRING, 
 835    IDISK_VG: VTYPE_STRING, 
 836    IDISK_METAVG: VTYPE_STRING, 
 837    } 
 838  IDISK_PARAMS = frozenset(IDISK_PARAMS_TYPES.keys()) 
 839   
 840  # INIC_* constants are used in opcodes, to create/change nics 
 841  INIC_MAC = "mac" 
 842  INIC_IP = "ip" 
 843  INIC_MODE = "mode" 
 844  INIC_LINK = "link" 
 845  INIC_PARAMS_TYPES = { 
 846    INIC_IP: VTYPE_MAYBE_STRING, 
 847    INIC_LINK: VTYPE_STRING, 
 848    INIC_MAC: VTYPE_STRING, 
 849    INIC_MODE: VTYPE_STRING, 
 850    } 
 851  INIC_PARAMS = frozenset(INIC_PARAMS_TYPES.keys()) 
 852   
 853  # Hypervisor constants 
 854  HT_XEN_PVM = "xen-pvm" 
 855  HT_FAKE = "fake" 
 856  HT_XEN_HVM = "xen-hvm" 
 857  HT_KVM = "kvm" 
 858  HT_CHROOT = "chroot" 
 859  HT_LXC = "lxc" 
 860  HYPER_TYPES = frozenset([ 
 861    HT_XEN_PVM, 
 862    HT_FAKE, 
 863    HT_XEN_HVM, 
 864    HT_KVM, 
 865    HT_CHROOT, 
 866    HT_LXC, 
 867    ]) 
 868  HTS_REQ_PORT = frozenset([HT_XEN_HVM, HT_KVM]) 
 869   
 870  VNC_BASE_PORT = 5900 
 871  VNC_PASSWORD_FILE = CONF_DIR + "/vnc-cluster-password" 
 872  VNC_DEFAULT_BIND_ADDRESS = IP4_ADDRESS_ANY 
 873   
 874  # NIC types 
 875  HT_NIC_RTL8139 = "rtl8139" 
 876  HT_NIC_NE2K_PCI = "ne2k_pci" 
 877  HT_NIC_NE2K_ISA = "ne2k_isa" 
 878  HT_NIC_I82551 = "i82551" 
 879  HT_NIC_I85557B = "i82557b" 
 880  HT_NIC_I8259ER = "i82559er" 
 881  HT_NIC_PCNET = "pcnet" 
 882  HT_NIC_E1000 = "e1000" 
 883  HT_NIC_PARAVIRTUAL = HT_DISK_PARAVIRTUAL = "paravirtual" 
 884   
 885  HT_HVM_VALID_NIC_TYPES = frozenset([ 
 886    HT_NIC_RTL8139, 
 887    HT_NIC_NE2K_PCI, 
 888    HT_NIC_E1000, 
 889    HT_NIC_NE2K_ISA, 
 890    HT_NIC_PARAVIRTUAL 
 891    ]) 
 892  HT_KVM_VALID_NIC_TYPES = frozenset([ 
 893    HT_NIC_RTL8139, 
 894    HT_NIC_NE2K_PCI, 
 895    HT_NIC_NE2K_ISA, 
 896    HT_NIC_I82551, 
 897    HT_NIC_I85557B, 
 898    HT_NIC_I8259ER, 
 899    HT_NIC_PCNET, 
 900    HT_NIC_E1000, 
 901    HT_NIC_PARAVIRTUAL 
 902    ]) 
 903   
 904  # Disk types 
 905  HT_DISK_IOEMU = "ioemu" 
 906  HT_DISK_IDE = "ide" 
 907  HT_DISK_SCSI = "scsi" 
 908  HT_DISK_SD = "sd" 
 909  HT_DISK_MTD = "mtd" 
 910  HT_DISK_PFLASH = "pflash" 
 911   
 912  HT_CACHE_DEFAULT = "default" 
 913  HT_CACHE_NONE = "none" 
 914  HT_CACHE_WTHROUGH = "writethrough" 
 915  HT_CACHE_WBACK = "writeback" 
 916  HT_VALID_CACHE_TYPES = frozenset([ 
 917    HT_CACHE_DEFAULT, 
 918    HT_CACHE_NONE, 
 919    HT_CACHE_WTHROUGH, 
 920    HT_CACHE_WBACK 
 921    ]) 
 922   
 923  HT_HVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IOEMU]) 
 924  HT_KVM_VALID_DISK_TYPES = frozenset([ 
 925    HT_DISK_PARAVIRTUAL, 
 926    HT_DISK_IDE, 
 927    HT_DISK_SCSI, 
 928    HT_DISK_SD, 
 929    HT_DISK_MTD, 
 930    HT_DISK_PFLASH 
 931    ]) 
 932   
 933  # Mouse types: 
 934  HT_MOUSE_MOUSE = "mouse" 
 935  HT_MOUSE_TABLET = "tablet" 
 936   
 937  HT_KVM_VALID_MOUSE_TYPES = frozenset([HT_MOUSE_MOUSE, HT_MOUSE_TABLET]) 
 938   
 939  # Boot order 
 940  HT_BO_FLOPPY = "floppy" 
 941  HT_BO_CDROM = "cdrom" 
 942  HT_BO_DISK = "disk" 
 943  HT_BO_NETWORK = "network" 
 944   
 945  HT_KVM_VALID_BO_TYPES = frozenset([ 
 946    HT_BO_FLOPPY, 
 947    HT_BO_CDROM, 
 948    HT_BO_DISK, 
 949    HT_BO_NETWORK 
 950    ]) 
 951   
 952  # Security models 
 953  HT_SM_NONE = "none" 
 954  HT_SM_USER = "user" 
 955  HT_SM_POOL = "pool" 
 956   
 957  HT_KVM_VALID_SM_TYPES = frozenset([HT_SM_NONE, HT_SM_USER, HT_SM_POOL]) 
 958   
 959  # Kvm flag values 
 960  HT_KVM_ENABLED = "enabled" 
 961  HT_KVM_DISABLED = "disabled" 
 962   
 963  HT_KVM_FLAG_VALUES = frozenset([HT_KVM_ENABLED, HT_KVM_DISABLED]) 
 964   
 965  # Migration type 
 966  HT_MIGRATION_LIVE = "live" 
 967  HT_MIGRATION_NONLIVE = "non-live" 
 968  HT_MIGRATION_MODES = frozenset([HT_MIGRATION_LIVE, HT_MIGRATION_NONLIVE]) 
 969   
 970  # Cluster Verify steps 
 971  VERIFY_NPLUSONE_MEM = "nplusone_mem" 
 972  VERIFY_OPTIONAL_CHECKS = frozenset([VERIFY_NPLUSONE_MEM]) 
 973   
 974  # Node verify constants 
 975  NV_DRBDHELPER = "drbd-helper" 
 976  NV_DRBDLIST = "drbd-list" 
 977  NV_FILELIST = "filelist" 
 978  NV_HVINFO = "hvinfo" 
 979  NV_HYPERVISOR = "hypervisor" 
 980  NV_HVPARAMS = "hvparms" 
 981  NV_INSTANCELIST = "instancelist" 
 982  NV_LVLIST = "lvlist" 
 983  NV_MASTERIP = "master-ip" 
 984  NV_NODELIST = "nodelist" 
 985  NV_NODENETTEST = "node-net-test" 
 986  NV_NODESETUP = "nodesetup" 
 987  NV_OSLIST = "oslist" 
 988  NV_PVLIST = "pvlist" 
 989  NV_TIME = "time" 
 990  NV_VERSION = "version" 
 991  NV_VGLIST = "vglist" 
 992  NV_VMNODES = "vmnodes" 
 993  NV_OOB_PATHS = "oob-paths" 
 994  NV_BRIDGES = "bridges" 
 995   
 996  # Instance status 
 997  INSTST_RUNNING = "running" 
 998  INSTST_ADMINDOWN = "ADMIN_down" 
 999  INSTST_NODEOFFLINE = "ERROR_nodeoffline" 
1000  INSTST_NODEDOWN = "ERROR_nodedown" 
1001  INSTST_WRONGNODE = "ERROR_wrongnode" 
1002  INSTST_ERRORUP = "ERROR_up" 
1003  INSTST_ERRORDOWN = "ERROR_down" 
1004  INSTST_ALL = frozenset([ 
1005    INSTST_RUNNING, 
1006    INSTST_ADMINDOWN, 
1007    INSTST_NODEOFFLINE, 
1008    INSTST_NODEDOWN, 
1009    INSTST_WRONGNODE, 
1010    INSTST_ERRORUP, 
1011    INSTST_ERRORDOWN, 
1012    ]) 
1013   
1014  # Node roles 
1015  NR_REGULAR = "R" 
1016  NR_MASTER = "M" 
1017  NR_MCANDIDATE = "C" 
1018  NR_DRAINED = "D" 
1019  NR_OFFLINE = "O" 
1020  NR_ALL = frozenset([ 
1021    NR_REGULAR, 
1022    NR_MASTER, 
1023    NR_MCANDIDATE, 
1024    NR_DRAINED, 
1025    NR_OFFLINE, 
1026    ]) 
1027   
1028  # SSL certificate check constants (in days) 
1029  SSL_CERT_EXPIRATION_WARN = 30 
1030  SSL_CERT_EXPIRATION_ERROR = 7 
1031   
1032  # Allocator framework constants 
1033  IALLOCATOR_VERSION = 2 
1034  IALLOCATOR_DIR_IN = "in" 
1035  IALLOCATOR_DIR_OUT = "out" 
1036  VALID_IALLOCATOR_DIRECTIONS = frozenset([ 
1037    IALLOCATOR_DIR_IN, 
1038    IALLOCATOR_DIR_OUT, 
1039    ]) 
1040  IALLOCATOR_MODE_ALLOC = "allocate" 
1041  IALLOCATOR_MODE_RELOC = "relocate" 
1042  IALLOCATOR_MODE_CHG_GROUP = "change-group" 
1043  IALLOCATOR_MODE_NODE_EVAC = "node-evacuate" 
1044  VALID_IALLOCATOR_MODES = frozenset([ 
1045    IALLOCATOR_MODE_ALLOC, 
1046    IALLOCATOR_MODE_RELOC, 
1047    IALLOCATOR_MODE_CHG_GROUP, 
1048    IALLOCATOR_MODE_NODE_EVAC, 
1049    ]) 
1050  IALLOCATOR_SEARCH_PATH = _autoconf.IALLOCATOR_SEARCH_PATH 
1051   
1052  IALLOCATOR_NEVAC_PRI = "primary-only" 
1053  IALLOCATOR_NEVAC_SEC = "secondary-only" 
1054  IALLOCATOR_NEVAC_ALL = "all" 
1055  IALLOCATOR_NEVAC_MODES = frozenset([ 
1056    IALLOCATOR_NEVAC_PRI, 
1057    IALLOCATOR_NEVAC_SEC, 
1058    IALLOCATOR_NEVAC_ALL, 
1059    ]) 
1060   
1061  # Job queue 
1062  JOB_QUEUE_VERSION = 1 
1063  JOB_QUEUE_LOCK_FILE = QUEUE_DIR + "/lock" 
1064  JOB_QUEUE_VERSION_FILE = QUEUE_DIR + "/version" 
1065  JOB_QUEUE_SERIAL_FILE = QUEUE_DIR + "/serial" 
1066  JOB_QUEUE_ARCHIVE_DIR = QUEUE_DIR + "/archive" 
1067  JOB_QUEUE_DRAIN_FILE = QUEUE_DIR + "/drain" 
1068  JOB_QUEUE_SIZE_HARD_LIMIT = 5000 
1069  JOB_QUEUE_DIRS = [QUEUE_DIR, JOB_QUEUE_ARCHIVE_DIR] 
1070  JOB_QUEUE_DIRS_MODE = SECURE_DIR_MODE 
1071   
1072  JOB_ID_TEMPLATE = r"\d+" 
1073  JOB_FILE_RE = re.compile(r"^job-(%s)$" % JOB_ID_TEMPLATE) 
1074   
1075  # unchanged job return 
1076  JOB_NOTCHANGED = "nochange" 
1077   
1078  # Job status 
1079  JOB_STATUS_QUEUED = "queued" 
1080  JOB_STATUS_WAITING = "waiting" 
1081  JOB_STATUS_CANCELING = "canceling" 
1082  JOB_STATUS_RUNNING = "running" 
1083  JOB_STATUS_CANCELED = "canceled" 
1084  JOB_STATUS_SUCCESS = "success" 
1085  JOB_STATUS_ERROR = "error" 
1086  JOBS_FINALIZED = frozenset([ 
1087    JOB_STATUS_CANCELED, 
1088    JOB_STATUS_SUCCESS, 
1089    JOB_STATUS_ERROR, 
1090    ]) 
1091  JOB_STATUS_ALL = frozenset([ 
1092    JOB_STATUS_QUEUED, 
1093    JOB_STATUS_WAITING, 
1094    JOB_STATUS_CANCELING, 
1095    JOB_STATUS_RUNNING, 
1096    ]) | JOBS_FINALIZED 
1097   
1098  # OpCode status 
1099  # not yet finalized 
1100  OP_STATUS_QUEUED = "queued" 
1101  OP_STATUS_WAITING = "waiting" 
1102  OP_STATUS_CANCELING = "canceling" 
1103  OP_STATUS_RUNNING = "running" 
1104  # finalized 
1105  OP_STATUS_CANCELED = "canceled" 
1106  OP_STATUS_SUCCESS = "success" 
1107  OP_STATUS_ERROR = "error" 
1108  OPS_FINALIZED = frozenset([ 
1109    OP_STATUS_CANCELED, 
1110    OP_STATUS_SUCCESS, 
1111    OP_STATUS_ERROR 
1112    ]) 
1113   
1114  # OpCode priority 
1115  OP_PRIO_LOWEST = +19 
1116  OP_PRIO_HIGHEST = -20 
1117   
1118  OP_PRIO_LOW = +10 
1119  OP_PRIO_NORMAL = 0 
1120  OP_PRIO_HIGH = -10 
1121   
1122  OP_PRIO_SUBMIT_VALID = frozenset([ 
1123    OP_PRIO_LOW, 
1124    OP_PRIO_NORMAL, 
1125    OP_PRIO_HIGH, 
1126    ]) 
1127   
1128  OP_PRIO_DEFAULT = OP_PRIO_NORMAL 
1129   
1130  # Execution log types 
1131  ELOG_MESSAGE = "message" 
1132  ELOG_PROGRESS = "progress" 
1133  ELOG_REMOTE_IMPORT = "remote-import" 
1134  ELOG_JQUEUE_TEST = "jqueue-test" 
1135   
1136  # /etc/hosts modification 
1137  ETC_HOSTS_ADD = "add" 
1138  ETC_HOSTS_REMOVE = "remove" 
1139   
1140  # Job queue test 
1141  JQT_MSGPREFIX = "TESTMSG=" 
1142  JQT_EXPANDNAMES = "expandnames" 
1143  JQT_EXEC = "exec" 
1144  JQT_LOGMSG = "logmsg" 
1145  JQT_STARTMSG = "startmsg" 
1146  JQT_ALL = frozenset([ 
1147    JQT_EXPANDNAMES, 
1148    JQT_EXEC, 
1149    JQT_LOGMSG, 
1150    JQT_STARTMSG, 
1151    ]) 
1152   
1153  # Query resources 
1154  QR_INSTANCE = "instance" 
1155  QR_NODE = "node" 
1156  QR_LOCK = "lock" 
1157  QR_GROUP = "group" 
1158  QR_OS = "os" 
1159   
1160  #: List of resources which can be queried using L{opcodes.OpQuery} 
1161  QR_VIA_OP = frozenset([QR_INSTANCE, QR_NODE, QR_GROUP, QR_OS]) 
1162   
1163  #: List of resources which can be queried using Local UniX Interface 
1164  QR_VIA_LUXI = QR_VIA_OP.union([ 
1165    QR_LOCK, 
1166    ]) 
1167   
1168  #: List of resources which can be queried using RAPI 
1169  QR_VIA_RAPI = QR_VIA_LUXI 
1170   
1171  # Query field types 
1172  QFT_UNKNOWN = "unknown" 
1173  QFT_TEXT = "text" 
1174  QFT_BOOL = "bool" 
1175  QFT_NUMBER = "number" 
1176  QFT_UNIT = "unit" 
1177  QFT_TIMESTAMP = "timestamp" 
1178  QFT_OTHER = "other" 
1179   
1180  #: All query field types 
1181  QFT_ALL = frozenset([ 
1182    QFT_UNKNOWN, 
1183    QFT_TEXT, 
1184    QFT_BOOL, 
1185    QFT_NUMBER, 
1186    QFT_UNIT, 
1187    QFT_TIMESTAMP, 
1188    QFT_OTHER, 
1189    ]) 
1190   
1191  # Query result field status (don't change or reuse values as they're used by 
1192  # clients) 
1193  #: Normal field status 
1194  RS_NORMAL = 0 
1195  #: Unknown field 
1196  RS_UNKNOWN = 1 
1197  #: No data (e.g. RPC error), can be used instead of L{RS_OFFLINE} 
1198  RS_NODATA = 2 
1199  #: Value unavailable/unsupported for item; if this field is supported 
1200  #: but we cannot get the data for the moment, RS_NODATA or 
1201  #: RS_OFFLINE should be used 
1202  RS_UNAVAIL = 3 
1203  #: Resource marked offline 
1204  RS_OFFLINE = 4 
1205   
1206  RS_ALL = frozenset([ 
1207    RS_NORMAL, 
1208    RS_UNKNOWN, 
1209    RS_NODATA, 
1210    RS_UNAVAIL, 
1211    RS_OFFLINE, 
1212    ]) 
1213   
1214  #: Dictionary with special field cases and their verbose/terse formatting 
1215  RSS_DESCRIPTION = { 
1216    RS_UNKNOWN: ("(unknown)", "??"), 
1217    RS_NODATA: ("(nodata)", "?"), 
1218    RS_OFFLINE: ("(offline)", "*"), 
1219    RS_UNAVAIL: ("(unavail)", "-"), 
1220    } 
1221   
1222  # max dynamic devices 
1223  MAX_NICS = 8 
1224  MAX_DISKS = 16 
1225   
1226  # SSCONF keys 
1227  SS_CLUSTER_NAME = "cluster_name" 
1228  SS_CLUSTER_TAGS = "cluster_tags" 
1229  SS_FILE_STORAGE_DIR = "file_storage_dir" 
1230  SS_SHARED_FILE_STORAGE_DIR = "shared_file_storage_dir" 
1231  SS_MASTER_CANDIDATES = "master_candidates" 
1232  SS_MASTER_CANDIDATES_IPS = "master_candidates_ips" 
1233  SS_MASTER_IP = "master_ip" 
1234  SS_MASTER_NETDEV = "master_netdev" 
1235  SS_MASTER_NODE = "master_node" 
1236  SS_NODE_LIST = "node_list" 
1237  SS_NODE_PRIMARY_IPS = "node_primary_ips" 
1238  SS_NODE_SECONDARY_IPS = "node_secondary_ips" 
1239  SS_OFFLINE_NODES = "offline_nodes" 
1240  SS_ONLINE_NODES = "online_nodes" 
1241  SS_PRIMARY_IP_FAMILY = "primary_ip_family" 
1242  SS_INSTANCE_LIST = "instance_list" 
1243  SS_RELEASE_VERSION = "release_version" 
1244  SS_HYPERVISOR_LIST = "hypervisor_list" 
1245  SS_MAINTAIN_NODE_HEALTH = "maintain_node_health" 
1246  SS_UID_POOL = "uid_pool" 
1247  SS_NODEGROUPS = "nodegroups" 
1248   
1249  SS_FILE_PERMS = 0444 
1250   
1251  # cluster wide default parameters 
1252  DEFAULT_ENABLED_HYPERVISOR = HT_XEN_PVM 
1253   
1254  HVC_DEFAULTS = { 
1255    HT_XEN_PVM: { 
1256      HV_USE_BOOTLOADER: False, 
1257      HV_BOOTLOADER_PATH: XEN_BOOTLOADER, 
1258      HV_BOOTLOADER_ARGS: "", 
1259      HV_KERNEL_PATH: XEN_KERNEL, 
1260      HV_INITRD_PATH: "", 
1261      HV_ROOT_PATH: "/dev/sda1", 
1262      HV_KERNEL_ARGS: "ro", 
1263      HV_MIGRATION_PORT: 8002, 
1264      HV_MIGRATION_MODE: HT_MIGRATION_LIVE, 
1265      HV_BLOCKDEV_PREFIX: "sd", 
1266      HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED, 
1267      }, 
1268    HT_XEN_HVM: { 
1269      HV_BOOT_ORDER: "cd", 
1270      HV_CDROM_IMAGE_PATH: "", 
1271      HV_NIC_TYPE: HT_NIC_RTL8139, 
1272      HV_DISK_TYPE: HT_DISK_PARAVIRTUAL, 
1273      HV_VNC_BIND_ADDRESS: IP4_ADDRESS_ANY, 
1274      HV_VNC_PASSWORD_FILE: VNC_PASSWORD_FILE, 
1275      HV_ACPI: True, 
1276      HV_PAE: True, 
1277      HV_KERNEL_PATH: "/usr/lib/xen/boot/hvmloader", 
1278      HV_DEVICE_MODEL: "/usr/lib/xen/bin/qemu-dm", 
1279      HV_MIGRATION_PORT: 8002, 
1280      HV_MIGRATION_MODE: HT_MIGRATION_NONLIVE, 
1281      HV_USE_LOCALTIME: False, 
1282      HV_BLOCKDEV_PREFIX: "hd", 
1283      HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED, 
1284      }, 
1285    HT_KVM: { 
1286      HV_KERNEL_PATH: "/boot/vmlinuz-2.6-kvmU", 
1287      HV_INITRD_PATH: "", 
1288      HV_KERNEL_ARGS: "ro", 
1289      HV_ROOT_PATH: "/dev/vda1", 
1290      HV_ACPI: True, 
1291      HV_SERIAL_CONSOLE: True, 
1292      HV_VNC_BIND_ADDRESS: "", 
1293      HV_VNC_TLS: False, 
1294      HV_VNC_X509: "", 
1295      HV_VNC_X509_VERIFY: False, 
1296      HV_VNC_PASSWORD_FILE: "", 
1297      HV_KVM_SPICE_BIND: "", 
1298      HV_KVM_SPICE_IP_VERSION: IFACE_NO_IP_VERSION_SPECIFIED, 
1299      HV_KVM_FLOPPY_IMAGE_PATH: "", 
1300      HV_CDROM_IMAGE_PATH: "", 
1301      HV_KVM_CDROM2_IMAGE_PATH: "", 
1302      HV_BOOT_ORDER: HT_BO_DISK, 
1303      HV_NIC_TYPE: HT_NIC_PARAVIRTUAL, 
1304      HV_DISK_TYPE: HT_DISK_PARAVIRTUAL, 
1305      HV_KVM_CDROM_DISK_TYPE: "", 
1306      HV_USB_MOUSE: "", 
1307      HV_KEYMAP: "", 
1308      HV_MIGRATION_PORT: 8102, 
1309      HV_MIGRATION_BANDWIDTH: 32, # MiB/s 
1310      HV_MIGRATION_DOWNTIME: 30,  # ms 
1311      HV_MIGRATION_MODE: HT_MIGRATION_LIVE, 
1312      HV_USE_LOCALTIME: False, 
1313      HV_DISK_CACHE: HT_CACHE_DEFAULT, 
1314      HV_SECURITY_MODEL: HT_SM_NONE, 
1315      HV_SECURITY_DOMAIN: "", 
1316      HV_KVM_FLAG: "", 
1317      HV_VHOST_NET: False, 
1318      HV_KVM_USE_CHROOT: False, 
1319      HV_MEM_PATH: "", 
1320      HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED, 
1321      }, 
1322    HT_FAKE: { 
1323      }, 
1324    HT_CHROOT: { 
1325      HV_INIT_SCRIPT: "/ganeti-chroot", 
1326      }, 
1327    HT_LXC: { 
1328      HV_CPU_MASK: "", 
1329      }, 
1330    } 
1331   
1332  HVC_GLOBALS = frozenset([ 
1333    HV_MIGRATION_PORT, 
1334    HV_MIGRATION_BANDWIDTH, 
1335    HV_MIGRATION_MODE, 
1336    ]) 
1337   
1338  BEC_DEFAULTS = { 
1339    BE_MEMORY: 128, 
1340    BE_VCPUS: 1, 
1341    BE_AUTO_BALANCE: True, 
1342    } 
1343   
1344  NDC_DEFAULTS = { 
1345    ND_OOB_PROGRAM: None, 
1346    } 
1347   
1348  NICC_DEFAULTS = { 
1349    NIC_MODE: NIC_MODE_BRIDGED, 
1350    NIC_LINK: DEFAULT_BRIDGE, 
1351    } 
1352   
1353  MASTER_POOL_SIZE_DEFAULT = 10 
1354   
1355  CONFD_PROTOCOL_VERSION = 1 
1356   
1357  CONFD_REQ_PING = 0 
1358  CONFD_REQ_NODE_ROLE_BYNAME = 1 
1359  CONFD_REQ_NODE_PIP_BY_INSTANCE_IP = 2 
1360  CONFD_REQ_CLUSTER_MASTER = 3 
1361  CONFD_REQ_NODE_PIP_LIST = 4 
1362  CONFD_REQ_MC_PIP_LIST = 5 
1363  CONFD_REQ_INSTANCES_IPS_LIST = 6 
1364   
1365  # Confd request query fields. These are used to narrow down queries. 
1366  # These must be strings rather than integers, because json-encoding 
1367  # converts them to strings anyway, as they're used as dict-keys. 
1368  CONFD_REQQ_LINK = "0" 
1369  CONFD_REQQ_IP = "1" 
1370  CONFD_REQQ_IPLIST = "2" 
1371  CONFD_REQQ_FIELDS = "3" 
1372   
1373  CONFD_REQFIELD_NAME = "0" 
1374  CONFD_REQFIELD_IP = "1" 
1375  CONFD_REQFIELD_MNODE_PIP = "2" 
1376   
1377  CONFD_REQS = frozenset([ 
1378    CONFD_REQ_PING, 
1379    CONFD_REQ_NODE_ROLE_BYNAME, 
1380    CONFD_REQ_NODE_PIP_BY_INSTANCE_IP, 
1381    CONFD_REQ_CLUSTER_MASTER, 
1382    CONFD_REQ_NODE_PIP_LIST, 
1383    CONFD_REQ_MC_PIP_LIST, 
1384    CONFD_REQ_INSTANCES_IPS_LIST, 
1385    ]) 
1386   
1387  CONFD_REPL_STATUS_OK = 0 
1388  CONFD_REPL_STATUS_ERROR = 1 
1389  CONFD_REPL_STATUS_NOTIMPLEMENTED = 2 
1390   
1391  CONFD_REPL_STATUSES = frozenset([ 
1392    CONFD_REPL_STATUS_OK, 
1393    CONFD_REPL_STATUS_ERROR, 
1394    CONFD_REPL_STATUS_NOTIMPLEMENTED, 
1395    ]) 
1396   
1397  (CONFD_NODE_ROLE_MASTER, 
1398   CONFD_NODE_ROLE_CANDIDATE, 
1399   CONFD_NODE_ROLE_OFFLINE, 
1400   CONFD_NODE_ROLE_DRAINED, 
1401   CONFD_NODE_ROLE_REGULAR, 
1402   ) = range(5) 
1403   
1404  # A few common errors for confd 
1405  CONFD_ERROR_UNKNOWN_ENTRY = 1 
1406  CONFD_ERROR_INTERNAL = 2 
1407  CONFD_ERROR_ARGUMENT = 3 
1408   
1409  # Each request is "salted" by the current timestamp. 
1410  # This constants decides how many seconds of skew to accept. 
1411  # TODO: make this a default and allow the value to be more configurable 
1412  CONFD_MAX_CLOCK_SKEW = 2 * NODE_MAX_CLOCK_SKEW 
1413   
1414  # When we haven't reloaded the config for more than this amount of seconds, we 
1415  # force a test to see if inotify is betraying us. 
1416  CONFD_CONFIG_RELOAD_TIMEOUT = 60 
1417   
1418  # If we receive more than one update in this amount of seconds, we move to 
1419  # polling every RATELIMIT seconds, rather than relying on inotify, to be able 
1420  # to serve more requests. 
1421  CONFD_CONFIG_RELOAD_RATELIMIT = 2 
1422   
1423  # Magic number prepended to all confd queries. 
1424  # This allows us to distinguish different types of confd protocols and handle 
1425  # them. For example by changing this we can move the whole payload to be 
1426  # compressed, or move away from json. 
1427  CONFD_MAGIC_FOURCC = "plj0" 
1428   
1429  # By default a confd request is sent to the minimum between this number and all 
1430  # MCs. 6 was chosen because even in the case of a disastrous 50% response rate, 
1431  # we should have enough answers to be able to compare more than one. 
1432  CONFD_DEFAULT_REQ_COVERAGE = 6 
1433   
1434  # Timeout in seconds to expire pending query request in the confd client 
1435  # library. We don't actually expect any answer more than 10 seconds after we 
1436  # sent a request. 
1437  CONFD_CLIENT_EXPIRE_TIMEOUT = 10 
1438   
1439  # Maximum UDP datagram size. 
1440  # On IPv4: 64K - 20 (ip header size) - 8 (udp header size) = 65507 
1441  # On IPv6: 64K - 40 (ip6 header size) - 8 (udp header size) = 65487 
1442  #   (assuming we can't use jumbo frames) 
1443  # We just set this to 60K, which should be enough 
1444  MAX_UDP_DATA_SIZE = 61440 
1445   
1446  # User-id pool minimum/maximum acceptable user-ids. 
1447  UIDPOOL_UID_MIN = 0 
1448  UIDPOOL_UID_MAX = 2 ** 32 - 1 # Assuming 32 bit user-ids 
1449   
1450  # Name or path of the pgrep command 
1451  PGREP = "pgrep" 
1452   
1453  # Name of the node group that gets created at cluster init or upgrade 
1454  INITIAL_NODE_GROUP_NAME = "default" 
1455   
1456  # Possible values for NodeGroup.alloc_policy 
1457  ALLOC_POLICY_PREFERRED = "preferred" 
1458  ALLOC_POLICY_LAST_RESORT = "last_resort" 
1459  ALLOC_POLICY_UNALLOCABLE = "unallocable" 
1460  VALID_ALLOC_POLICIES = [ 
1461    ALLOC_POLICY_PREFERRED, 
1462    ALLOC_POLICY_LAST_RESORT, 
1463    ALLOC_POLICY_UNALLOCABLE, 
1464    ] 
1465   
1466  # Temporary external/shared storage parameters 
1467  BLOCKDEV_DRIVER_MANUAL = "manual" 
1468   
1469  # Whether htools was enabled at compilation time 
1470  HTOOLS = _autoconf.HTOOLS 
1471  # The hail iallocator 
1472  IALLOC_HAIL = "hail" 
1473