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Source Code for Module ganeti.constants

   1  # 
   2  # 
   3   
   4  # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 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  import socket 
  26   
  27  from ganeti import _autoconf 
  28  from ganeti import _vcsversion 
  29  from ganeti import compat 
  30  from ganeti import pathutils 
  31   
  32   
  33  # various versions 
  34  RELEASE_VERSION = _autoconf.PACKAGE_VERSION 
  35  OS_API_V10 = 10 
  36  OS_API_V15 = 15 
  37  OS_API_V20 = 20 
  38  OS_API_VERSIONS = compat.UniqueFrozenset([ 
  39    OS_API_V10, 
  40    OS_API_V15, 
  41    OS_API_V20, 
  42    ]) 
  43  VCS_VERSION = _vcsversion.VCS_VERSION 
  44  EXPORT_VERSION = 0 
  45  RAPI_VERSION = 2 
  46   
  47   
  48  # Format for CONFIG_VERSION: 
  49  #   01 03 0123 = 01030123 
  50  #   ^^ ^^ ^^^^ 
  51  #   |  |  + Configuration version/revision 
  52  #   |  + Minor version 
  53  #   + Major version 
  54  # 
  55  # It is stored as an integer. Make sure not to write an octal number. 
  56   
  57  # BuildVersion and SplitVersion must be in here because we can't import other 
  58  # modules. The cfgupgrade tool must be able to read and write version numbers 
  59  # and thus requires these functions. To avoid code duplication, they're kept in 
  60  # here. 
  61   

  62 -def BuildVersion(major, minor, revision): 

  63    """Calculates int version number from major, minor and revision numbers. 
  64   
  65    Returns: int representing version number 
  66   
  67    """ 
  68    assert isinstance(major, int) 
  69    assert isinstance(minor, int) 
  70    assert isinstance(revision, int) 
  71    return (1000000 * major + 
  72              10000 * minor + 
  73                  1 * revision) 

  74   
  75   

  76 -def SplitVersion(version): 

  77    """Splits version number stored in an int. 
  78   
  79    Returns: tuple; (major, minor, revision) 
  80   
  81    """ 
  82    assert isinstance(version, int) 
  83   
  84    (major, remainder) = divmod(version, 1000000) 
  85    (minor, revision) = divmod(remainder, 10000) 
  86   
  87    return (major, minor, revision) 

  88   
  89   
  90  CONFIG_MAJOR = int(_autoconf.VERSION_MAJOR) 
  91  CONFIG_MINOR = int(_autoconf.VERSION_MINOR) 
  92  CONFIG_REVISION = 0 
  93  CONFIG_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, CONFIG_REVISION) 
  94   
  95  #: RPC protocol version 
  96  PROTOCOL_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, 0) 
  97   
  98  # user separation 
  99  DAEMONS_GROUP = _autoconf.DAEMONS_GROUP 
 100  ADMIN_GROUP = _autoconf.ADMIN_GROUP 
 101  MASTERD_USER = _autoconf.MASTERD_USER 
 102  MASTERD_GROUP = _autoconf.MASTERD_GROUP 
 103  RAPI_USER = _autoconf.RAPI_USER 
 104  RAPI_GROUP = _autoconf.RAPI_GROUP 
 105  CONFD_USER = _autoconf.CONFD_USER 
 106  CONFD_GROUP = _autoconf.CONFD_GROUP 
 107  LUXID_USER = _autoconf.LUXID_USER 
 108  LUXID_GROUP = _autoconf.LUXID_GROUP 
 109  NODED_USER = _autoconf.NODED_USER 
 110  NODED_GROUP = _autoconf.NODED_GROUP 
 111  MOND_USER = _autoconf.MOND_USER 
 112  MOND_GROUP = _autoconf.MOND_GROUP 
 113  SSH_LOGIN_USER = _autoconf.SSH_LOGIN_USER 
 114  SSH_CONSOLE_USER = _autoconf.SSH_CONSOLE_USER 
 115   
 116  # cpu pinning separators and constants 
 117  CPU_PINNING_SEP = ":" 
 118  CPU_PINNING_ALL = "all" 
 119  # internal representation of "all" 
 120  CPU_PINNING_ALL_VAL = -1 
 121  # one "all" entry in a CPU list means CPU pinning is off 
 122  CPU_PINNING_OFF = [CPU_PINNING_ALL_VAL] 
 123   
 124  # A Xen-specific implementation detail - there is no way to actually say 
 125  # "use any cpu for pinning" in a Xen configuration file, as opposed to the 
 126  # command line, where you can say "xm vcpu-pin <domain> <vcpu> all". 
 127  # The workaround used in Xen is "0-63" (see source code function 
 128  # xm_vcpu_pin in <xen-source>/tools/python/xen/xm/main.py). 
 129  # To support future changes, the following constant is treated as a 
 130  # blackbox string that simply means use-any-cpu-for-pinning-under-xen. 
 131  CPU_PINNING_ALL_XEN = "0-63" 
 132   
 133  # A KVM-specific implementation detail - the following value is used 
 134  # to set CPU affinity to all processors (#0 through #31), per taskset 
 135  # man page. 
 136  # FIXME: This only works for machines with up to 32 CPU cores 
 137  CPU_PINNING_ALL_KVM = 0xFFFFFFFF 
 138   
 139  # Wipe 
 140  DD_CMD = "dd" 
 141  MAX_WIPE_CHUNK = 1024 # 1GB 
 142  MIN_WIPE_CHUNK_PERCENT = 10 
 143   
 144  RUN_DIRS_MODE = 0775 
 145  SECURE_DIR_MODE = 0700 
 146  SECURE_FILE_MODE = 0600 
 147  ADOPTABLE_BLOCKDEV_ROOT = "/dev/disk/" 
 148  ENABLE_FILE_STORAGE = _autoconf.ENABLE_FILE_STORAGE 
 149  ENABLE_SHARED_FILE_STORAGE = _autoconf.ENABLE_SHARED_FILE_STORAGE 
 150  ENABLE_CONFD = _autoconf.ENABLE_CONFD 
 151  ENABLE_MOND = _autoconf.ENABLE_MOND 
 152  ENABLE_SPLIT_QUERY = _autoconf.ENABLE_SPLIT_QUERY 
 153  ENABLE_RESTRICTED_COMMANDS = _autoconf.ENABLE_RESTRICTED_COMMANDS 
 154   
 155  # SSH constants 
 156  SSH = "ssh" 
 157  SCP = "scp" 
 158   
 159  NODED = "ganeti-noded" 
 160  CONFD = "ganeti-confd" 
 161  LUXID = "ganeti-luxid" 
 162  RAPI = "ganeti-rapi" 
 163  MASTERD = "ganeti-masterd" 
 164  MOND = "ganeti-mond" 
 165   
 166  DAEMONS = compat.UniqueFrozenset([ 
 167    NODED, 
 168    CONFD, 
 169    LUXID, 
 170    RAPI, 
 171    MASTERD, 
 172    MOND, 
 173    ]) 
 174   
 175  DAEMONS_PORTS = { 
 176    # daemon-name: ("proto", "default-port") 
 177    NODED: ("tcp", 1811), 
 178    CONFD: ("udp", 1814), 
 179    MOND: ("tcp", 1815), 
 180    RAPI: ("tcp", 5080), 
 181    SSH: ("tcp", 22), 
 182  } 
 183   
 184  DEFAULT_NODED_PORT = DAEMONS_PORTS[NODED][1] 
 185  DEFAULT_CONFD_PORT = DAEMONS_PORTS[CONFD][1] 
 186  DEFAULT_MOND_PORT = DAEMONS_PORTS[MOND][1] 
 187  DEFAULT_RAPI_PORT = DAEMONS_PORTS[RAPI][1] 
 188   
 189  FIRST_DRBD_PORT = 11000 
 190  LAST_DRBD_PORT = 14999 
 191   
 192  DAEMONS_LOGBASE = { 
 193    NODED: "node-daemon", 
 194    CONFD: "conf-daemon", 
 195    LUXID: "luxi-daemon", 
 196    RAPI: "rapi-daemon", 
 197    MASTERD: "master-daemon", 
 198    MOND: "monitoring-daemon", 
 199    } 
 200   
 201  DAEMONS_LOGFILES = \ 
 202      dict((daemon, pathutils.GetLogFilename(DAEMONS_LOGBASE[daemon])) 
 203           for daemon in DAEMONS_LOGBASE) 
 204   
 205  # Some daemons might require more than one logfile. 
 206  # Specifically, right now only the Haskell http library "snap", used by the 
 207  # monitoring daemon, requires multiple log files. 
 208   
 209  # These are the only valid reasons for having an extra logfile 
 210  EXTRA_LOGREASON_ACCESS = "access" 
 211  EXTRA_LOGREASON_ERROR = "error" 
 212   
 213  VALID_EXTRA_LOGREASONS = compat.UniqueFrozenset([ 
 214    EXTRA_LOGREASON_ACCESS, 
 215    EXTRA_LOGREASON_ERROR, 
 216    ]) 
 217   
 218  # These are the extra logfiles, grouped by daemon 
 219  DAEMONS_EXTRA_LOGBASE = { 
 220    MOND: { 
 221      EXTRA_LOGREASON_ACCESS: "monitoring-daemon-access", 
 222      EXTRA_LOGREASON_ERROR: "monitoring-daemon-error", 
 223      } 
 224    } 
 225   
 226  DAEMONS_EXTRA_LOGFILES = \ 
 227    dict((daemon, dict((extra, 
 228         pathutils.GetLogFilename(DAEMONS_EXTRA_LOGBASE[daemon][extra])) 
 229         for extra in DAEMONS_EXTRA_LOGBASE[daemon])) 
 230           for daemon in DAEMONS_EXTRA_LOGBASE) 
 231   
 232  DEV_CONSOLE = "/dev/console" 
 233   
 234  PROC_MOUNTS = "/proc/mounts" 
 235   
 236  # Local UniX Interface related constants 
 237  LUXI_EOM = "\3" 
 238  LUXI_VERSION = CONFIG_VERSION 
 239  #: Environment variable for the luxi override socket 
 240  LUXI_OVERRIDE = "FORCE_LUXI_SOCKET" 
 241  LUXI_OVERRIDE_MASTER = "master" 
 242  LUXI_OVERRIDE_QUERY = "query" 
 243  LUXI_SOCKET_PERMS = 0660 
 244   
 245  # one of "no", "yes", "only" 
 246  SYSLOG_USAGE = _autoconf.SYSLOG_USAGE 
 247  SYSLOG_NO = "no" 
 248  SYSLOG_YES = "yes" 
 249  SYSLOG_ONLY = "only" 
 250  SYSLOG_SOCKET = "/dev/log" 
 251   
 252  EXPORT_CONF_FILE = "config.ini" 
 253   
 254  XEN_BOOTLOADER = _autoconf.XEN_BOOTLOADER 
 255  XEN_KERNEL = _autoconf.XEN_KERNEL 
 256  XEN_INITRD = _autoconf.XEN_INITRD 
 257  XEN_CMD_XM = "xm" 
 258  XEN_CMD_XL = "xl" 
 259  # FIXME: This will be made configurable using hvparams in Ganeti 2.7 
 260  XEN_CMD = _autoconf.XEN_CMD 
 261   
 262  KNOWN_XEN_COMMANDS = compat.UniqueFrozenset([ 
 263    XEN_CMD_XM, 
 264    XEN_CMD_XL, 
 265    ]) 
 266   
 267  # When the Xen toolstack used is "xl", live migration requires the source host 
 268  # to connect to the target host via ssh (xl runs this command). We need to pass 
 269  # the command xl runs some extra info so that it can use Ganeti's key 
 270  # verification and not fail. Note that this string is incomplete: it must be 
 271  # filled with the cluster name before being used. 
 272  XL_SSH_CMD = ("ssh -l %s -oGlobalKnownHostsFile=%s" 
 273                " -oUserKnownHostsFile=/dev/null" 
 274                " -oCheckHostIp=no -oStrictHostKeyChecking=yes" 
 275                " -oHostKeyAlias=%%s") % (SSH_LOGIN_USER, 
 276                                          pathutils.SSH_KNOWN_HOSTS_FILE) 
 277   
 278  KVM_PATH = _autoconf.KVM_PATH 
 279  KVM_KERNEL = _autoconf.KVM_KERNEL 
 280  SOCAT_PATH = _autoconf.SOCAT_PATH 
 281  SOCAT_USE_ESCAPE = _autoconf.SOCAT_USE_ESCAPE 
 282  SOCAT_USE_COMPRESS = _autoconf.SOCAT_USE_COMPRESS 
 283  SOCAT_ESCAPE_CODE = "0x1d" 
 284   
 285  #: Console as SSH command 
 286  CONS_SSH = "ssh" 
 287   
 288  #: Console as VNC server 
 289  CONS_VNC = "vnc" 
 290   
 291  #: Console as SPICE server 
 292  CONS_SPICE = "spice" 
 293   
 294  #: Display a message for console access 
 295  CONS_MESSAGE = "msg" 
 296   
 297  #: All console types 
 298  CONS_ALL = compat.UniqueFrozenset([ 
 299    CONS_SSH, 
 300    CONS_VNC, 
 301    CONS_SPICE, 
 302    CONS_MESSAGE, 
 303    ]) 
 304   
 305  # For RSA keys more bits are better, but they also make operations more 
 306  # expensive. NIST SP 800-131 recommends a minimum of 2048 bits from the year 
 307  # 2010 on. 
 308  RSA_KEY_BITS = 2048 
 309   
 310  # Ciphers allowed for SSL connections. For the format, see ciphers(1). A better 
 311  # way to disable ciphers would be to use the exclamation mark (!), but socat 
 312  # versions below 1.5 can't parse exclamation marks in options properly. When 
 313  # modifying the ciphers, ensure not to accidentially add something after it's 
 314  # been removed. Use the "openssl" utility to check the allowed ciphers, e.g. 
 315  # "openssl ciphers -v HIGH:-DES". 
 316  OPENSSL_CIPHERS = "HIGH:-DES:-3DES:-EXPORT:-ADH" 
 317   
 318  # Digest used to sign certificates ("openssl x509" uses SHA1 by default) 
 319  X509_CERT_SIGN_DIGEST = "SHA1" 
 320   
 321  # Default validity of certificates in days 
 322  X509_CERT_DEFAULT_VALIDITY = 365 * 5 
 323   
 324  # commonName (CN) used in certificates 
 325  X509_CERT_CN = "ganeti.example.com" 
 326   
 327  X509_CERT_SIGNATURE_HEADER = "X-Ganeti-Signature" 
 328   
 329  # Import/export daemon mode 
 330  IEM_IMPORT = "import" 
 331  IEM_EXPORT = "export" 
 332   
 333  # Import/export transport compression 
 334  IEC_NONE = "none" 
 335  IEC_GZIP = "gzip" 
 336  IEC_ALL = compat.UniqueFrozenset([ 
 337    IEC_NONE, 
 338    IEC_GZIP, 
 339    ]) 
 340   
 341  IE_CUSTOM_SIZE = "fd" 
 342   
 343  IE_MAGIC_RE = re.compile(r"^[-_.a-zA-Z0-9]{5,100}$") 
 344   
 345  # Import/export I/O 
 346  # Direct file I/O, equivalent to a shell's I/O redirection using '<' or '>' 
 347  IEIO_FILE = "file" 
 348  # Raw block device I/O using "dd" 
 349  IEIO_RAW_DISK = "raw" 
 350  # OS definition import/export script 
 351  IEIO_SCRIPT = "script" 
 352   
 353  VALUE_DEFAULT = "default" 
 354  VALUE_AUTO = "auto" 
 355  VALUE_GENERATE = "generate" 
 356  VALUE_NONE = "none" 
 357  VALUE_TRUE = "true" 
 358  VALUE_FALSE = "false" 
 359   
 360  # External script validation mask 
 361  EXT_PLUGIN_MASK = re.compile("^[a-zA-Z0-9_-]+$") 
 362   
 363  # hooks-related constants 
 364  HOOKS_PHASE_PRE = "pre" 
 365  HOOKS_PHASE_POST = "post" 
 366  HOOKS_NAME_CFGUPDATE = "config-update" 
 367  HOOKS_NAME_WATCHER = "watcher" 
 368  HOOKS_VERSION = 2 
 369  HOOKS_PATH = "/sbin:/bin:/usr/sbin:/usr/bin" 
 370   
 371  # hooks subject type (what object type does the LU deal with) 
 372  HTYPE_CLUSTER = "CLUSTER" 
 373  HTYPE_NODE = "NODE" 
 374  HTYPE_GROUP = "GROUP" 
 375  HTYPE_INSTANCE = "INSTANCE" 
 376  HTYPE_NETWORK = "NETWORK" 
 377   
 378  HKR_SKIP = 0 
 379  HKR_FAIL = 1 
 380  HKR_SUCCESS = 2 
 381   
 382  # Storage types 
 383  ST_BLOCK = "blockdev" 
 384  ST_DISKLESS = "diskless" 
 385  ST_EXT = "ext" 
 386  ST_FILE = "file" 
 387  ST_LVM_PV = "lvm-pv" 
 388  ST_LVM_VG = "lvm-vg" 
 389  ST_RADOS = "rados" 
 390   
 391  VALID_STORAGE_TYPES = compat.UniqueFrozenset([ 
 392    ST_BLOCK, 
 393    ST_DISKLESS, 
 394    ST_EXT, 
 395    ST_FILE, 
 396    ST_LVM_PV, 
 397    ST_LVM_VG, 
 398    ST_RADOS, 
 399    ]) 
 400   
 401  # Storage fields 
 402  # first two are valid in LU context only, not passed to backend 
 403  SF_NODE = "node" 
 404  SF_TYPE = "type" 
 405  # and the rest are valid in backend 
 406  SF_NAME = "name" 
 407  SF_SIZE = "size" 
 408  SF_FREE = "free" 
 409  SF_USED = "used" 
 410  SF_ALLOCATABLE = "allocatable" 
 411   
 412  # Storage operations 
 413  SO_FIX_CONSISTENCY = "fix-consistency" 
 414   
 415  # Available fields per storage type 
 416  VALID_STORAGE_FIELDS = compat.UniqueFrozenset([ 
 417    SF_NAME, 
 418    SF_TYPE, 
 419    SF_SIZE, 
 420    SF_USED, 
 421    SF_FREE, 
 422    SF_ALLOCATABLE, 
 423    ]) 
 424   
 425  MODIFIABLE_STORAGE_FIELDS = { 
 426    ST_LVM_PV: frozenset([SF_ALLOCATABLE]), 
 427    } 
 428   
 429  VALID_STORAGE_OPERATIONS = { 
 430    ST_LVM_VG: frozenset([SO_FIX_CONSISTENCY]), 
 431    } 
 432   
 433  # Local disk status 
 434  # Note: Code depends on LDS_OKAY < LDS_UNKNOWN < LDS_FAULTY 
 435  (LDS_OKAY, 
 436   LDS_UNKNOWN, 
 437   LDS_FAULTY) = range(1, 4) 
 438   
 439  # disk template types 
 440  DT_BLOCK = "blockdev" 
 441  DT_DISKLESS = "diskless" 
 442  DT_DRBD8 = "drbd" 
 443  DT_EXT = "ext" 
 444  DT_FILE = "file" 
 445  DT_PLAIN = "plain" 
 446  DT_RBD = "rbd" 
 447  DT_SHARED_FILE = "sharedfile" 
 448   
 449  # This is used to order determine the default disk template when the list 
 450  # of enabled disk templates is inferred from the current state of the cluster. 
 451  # This only happens on an upgrade from a version of Ganeti that did not 
 452  # support the 'enabled_disk_templates' so far. 
 453  DISK_TEMPLATE_PREFERENCE = [ 
 454    DT_DRBD8, 
 455    DT_PLAIN, 
 456    DT_FILE, 
 457    DT_SHARED_FILE, 
 458    DT_RBD, 
 459    DT_BLOCK, 
 460    DT_DISKLESS, 
 461    DT_EXT 
 462    ] 
 463   
 464  DISK_TEMPLATES = compat.UniqueFrozenset([ 
 465    DT_DISKLESS, 
 466    DT_PLAIN, 
 467    DT_DRBD8, 
 468    DT_FILE, 
 469    DT_SHARED_FILE, 
 470    DT_BLOCK, 
 471    DT_RBD, 
 472    DT_EXT 
 473    ]) 
 474   
 475  # disk templates that are enabled by default 
 476  DEFAULT_ENABLED_DISK_TEMPLATES = compat.UniqueFrozenset([ 
 477    DT_DRBD8, 
 478    DT_PLAIN, 
 479    ]) 
 480   
 481  # mapping of disk templates to storage types 
 482  DISK_TEMPLATES_STORAGE_TYPE = { 
 483    DT_BLOCK: ST_BLOCK, 
 484    DT_DISKLESS: ST_DISKLESS, 
 485    DT_DRBD8: ST_LVM_VG, 
 486    DT_EXT: ST_EXT, 
 487    DT_FILE: ST_FILE, 
 488    DT_PLAIN: ST_LVM_VG, 
 489    DT_RBD: ST_RADOS, 
 490    DT_SHARED_FILE: ST_FILE, 
 491    } 
 492   
 493  # the set of network-mirrored disk templates 
 494  DTS_INT_MIRROR = compat.UniqueFrozenset([DT_DRBD8]) 
 495   
 496  # the set of externally-mirrored disk templates (e.g. SAN, NAS) 
 497  DTS_EXT_MIRROR = compat.UniqueFrozenset([ 
 498    DT_DISKLESS, # 'trivially' externally mirrored 
 499    DT_SHARED_FILE, 
 500    DT_BLOCK, 
 501    DT_RBD, 
 502    DT_EXT, 
 503    ]) 
 504   
 505  # the set of non-lvm-based disk templates 
 506  DTS_NOT_LVM = compat.UniqueFrozenset([ 
 507    DT_DISKLESS, 
 508    DT_FILE, 
 509    DT_SHARED_FILE, 
 510    DT_BLOCK, 
 511    DT_RBD, 
 512    DT_EXT, 
 513    ]) 
 514   
 515  # the set of disk templates which can be grown 
 516  DTS_GROWABLE = compat.UniqueFrozenset([ 
 517    DT_PLAIN, 
 518    DT_DRBD8, 
 519    DT_FILE, 
 520    DT_SHARED_FILE, 
 521    DT_RBD, 
 522    DT_EXT, 
 523    ]) 
 524   
 525  # the set of disk templates that allow adoption 
 526  DTS_MAY_ADOPT = compat.UniqueFrozenset([ 
 527    DT_PLAIN, 
 528    DT_BLOCK, 
 529    ]) 
 530   
 531  # the set of disk templates that *must* use adoption 
 532  DTS_MUST_ADOPT = compat.UniqueFrozenset([DT_BLOCK]) 
 533   
 534  # the set of disk templates that allow migrations 
 535  DTS_MIRRORED = frozenset.union(DTS_INT_MIRROR, DTS_EXT_MIRROR) 
 536   
 537  # the set of file based disk templates 
 538  DTS_FILEBASED = compat.UniqueFrozenset([ 
 539    DT_FILE, 
 540    DT_SHARED_FILE, 
 541    ]) 
 542   
 543  # the set of disk templates that can be moved by copying 
 544  # Note: a requirement is that they're not accessed externally or shared between 
 545  # nodes; in particular, sharedfile is not suitable. 
 546  DTS_COPYABLE = compat.UniqueFrozenset([ 
 547    DT_FILE, 
 548    DT_PLAIN, 
 549    ]) 
 550   
 551  # the set of disk templates that are supported by exclusive_storage 
 552  DTS_EXCL_STORAGE = compat.UniqueFrozenset([DT_PLAIN]) 
 553   
 554  # templates for which we don't perform checks on free space 
 555  DTS_NO_FREE_SPACE_CHECK = compat.UniqueFrozenset([ 
 556    DT_FILE, 
 557    DT_SHARED_FILE, 
 558    DT_RBD, 
 559    DT_EXT, 
 560    ]) 
 561   
 562  # logical disk types 
 563  LD_LV = "lvm" 
 564  LD_DRBD8 = "drbd8" 
 565  LD_FILE = "file" 
 566  LD_BLOCKDEV = "blockdev" 
 567  LD_RBD = "rbd" 
 568  LD_EXT = "ext" 
 569  LOGICAL_DISK_TYPES = compat.UniqueFrozenset([ 
 570    LD_LV, 
 571    LD_DRBD8, 
 572    LD_FILE, 
 573    LD_BLOCKDEV, 
 574    LD_RBD, 
 575    LD_EXT, 
 576    ]) 
 577   
 578  LDS_BLOCK = compat.UniqueFrozenset([ 
 579    LD_LV, 
 580    LD_DRBD8, 
 581    LD_BLOCKDEV, 
 582    LD_RBD, 
 583    LD_EXT, 
 584    ]) 
 585   
 586  # drbd constants 
 587  DRBD_HMAC_ALG = "md5" 
 588  DRBD_NET_PROTOCOL = "C" 
 589  DRBD_STATUS_FILE = "/proc/drbd" 
 590   
 591  #: Size of DRBD meta block device 
 592  DRBD_META_SIZE = 128 
 593   
 594  # drbd barrier types 
 595  DRBD_B_NONE = "n" 
 596  DRBD_B_DISK_BARRIERS = "b" 
 597  DRBD_B_DISK_DRAIN = "d" 
 598  DRBD_B_DISK_FLUSH = "f" 
 599   
 600  # Valid barrier combinations: "n" or any non-null subset of "bfd" 
 601  DRBD_VALID_BARRIER_OPT = compat.UniqueFrozenset([ 
 602    frozenset([DRBD_B_NONE]), 
 603    frozenset([DRBD_B_DISK_BARRIERS]), 
 604    frozenset([DRBD_B_DISK_DRAIN]), 
 605    frozenset([DRBD_B_DISK_FLUSH]), 
 606    frozenset([DRBD_B_DISK_DRAIN, DRBD_B_DISK_FLUSH]), 
 607    frozenset([DRBD_B_DISK_BARRIERS, DRBD_B_DISK_DRAIN]), 
 608    frozenset([DRBD_B_DISK_BARRIERS, DRBD_B_DISK_FLUSH]), 
 609    frozenset([DRBD_B_DISK_BARRIERS, DRBD_B_DISK_FLUSH, DRBD_B_DISK_DRAIN]), 
 610    ]) 
 611   
 612  # rbd tool command 
 613  RBD_CMD = "rbd" 
 614   
 615  # file backend driver 
 616  FD_LOOP = "loop" 
 617  FD_BLKTAP = "blktap" 
 618  FD_BLKTAP2 = "blktap2" 
 619  FD_DEFAULT = FD_LOOP 
 620   
 621  # the set of drbd-like disk types 
 622  LDS_DRBD = compat.UniqueFrozenset([LD_DRBD8]) 
 623   
 624  # disk access mode 
 625  DISK_RDONLY = "ro" 
 626  DISK_RDWR = "rw" 
 627  DISK_ACCESS_SET = compat.UniqueFrozenset([DISK_RDONLY, DISK_RDWR]) 
 628   
 629  # disk replacement mode 
 630  REPLACE_DISK_PRI = "replace_on_primary"    # replace disks on primary 
 631  REPLACE_DISK_SEC = "replace_on_secondary"  # replace disks on secondary 
 632  REPLACE_DISK_CHG = "replace_new_secondary" # change secondary node 
 633  REPLACE_DISK_AUTO = "replace_auto" 
 634  REPLACE_MODES = compat.UniqueFrozenset([ 
 635    REPLACE_DISK_PRI, 
 636    REPLACE_DISK_SEC, 
 637    REPLACE_DISK_CHG, 
 638    REPLACE_DISK_AUTO, 
 639    ]) 
 640   
 641  # Instance export mode 
 642  EXPORT_MODE_LOCAL = "local" 
 643  EXPORT_MODE_REMOTE = "remote" 
 644  EXPORT_MODES = compat.UniqueFrozenset([ 
 645    EXPORT_MODE_LOCAL, 
 646    EXPORT_MODE_REMOTE, 
 647    ]) 
 648   
 649  # instance creation modes 
 650  INSTANCE_CREATE = "create" 
 651  INSTANCE_IMPORT = "import" 
 652  INSTANCE_REMOTE_IMPORT = "remote-import" 
 653  INSTANCE_CREATE_MODES = compat.UniqueFrozenset([ 
 654    INSTANCE_CREATE, 
 655    INSTANCE_IMPORT, 
 656    INSTANCE_REMOTE_IMPORT, 
 657    ]) 
 658   
 659  # Remote import/export handshake message and version 
 660  RIE_VERSION = 0 
 661  RIE_HANDSHAKE = "Hi, I'm Ganeti" 
 662   
 663  # Remote import/export certificate validity in seconds 
 664  RIE_CERT_VALIDITY = 24 * 60 * 60 
 665   
 666  # Overall timeout for establishing connection 
 667  RIE_CONNECT_TIMEOUT = 180 
 668   
 669  # Export only: how long to wait per connection attempt (seconds) 
 670  RIE_CONNECT_ATTEMPT_TIMEOUT = 20 
 671   
 672  # Export only: number of attempts to connect 
 673  RIE_CONNECT_RETRIES = 10 
 674   
 675  #: Give child process up to 5 seconds to exit after sending a signal 
 676  CHILD_LINGER_TIMEOUT = 5.0 
 677   
 678  FILE_DRIVER = compat.UniqueFrozenset([FD_LOOP, FD_BLKTAP, FD_BLKTAP2]) 
 679   
 680  # import/export config options 
 681  INISECT_EXP = "export" 
 682  INISECT_INS = "instance" 
 683  INISECT_HYP = "hypervisor" 
 684  INISECT_BEP = "backend" 
 685  INISECT_OSP = "os" 
 686   
 687  # dynamic device modification 
 688  DDM_ADD = "add" 
 689  DDM_MODIFY = "modify" 
 690  DDM_REMOVE = "remove" 
 691  DDMS_VALUES = compat.UniqueFrozenset([DDM_ADD, DDM_REMOVE]) 
 692  DDMS_VALUES_WITH_MODIFY = (DDMS_VALUES | frozenset([ 
 693    DDM_MODIFY, 
 694    ])) 
 695  # TODO: DDM_SWAP, DDM_MOVE? 
 696   
 697  # common exit codes 
 698  EXIT_SUCCESS = 0 
 699  EXIT_FAILURE = 1 
 700  EXIT_NOTCLUSTER = 5 
 701  EXIT_NOTMASTER = 11 
 702  EXIT_NODESETUP_ERROR = 12 
 703  EXIT_CONFIRMATION = 13 # need user confirmation 
 704   
 705  #: Exit code for query operations with unknown fields 
 706  EXIT_UNKNOWN_FIELD = 14 
 707   
 708  # tags 
 709  TAG_CLUSTER = "cluster" 
 710  TAG_NODEGROUP = "nodegroup" 
 711  TAG_NODE = "node" 
 712  TAG_INSTANCE = "instance" 
 713  TAG_NETWORK = "network" 
 714  VALID_TAG_TYPES = compat.UniqueFrozenset([ 
 715    TAG_CLUSTER, 
 716    TAG_NODEGROUP, 
 717    TAG_NODE, 
 718    TAG_INSTANCE, 
 719    TAG_NETWORK, 
 720    ]) 
 721  MAX_TAG_LEN = 128 
 722  MAX_TAGS_PER_OBJ = 4096 
 723   
 724  # others 
 725  DEFAULT_BRIDGE = "xen-br0" 
 726  CLASSIC_DRBD_SYNC_SPEED = 60 * 1024  # 60 MiB, expressed in KiB 
 727  IP4_ADDRESS_LOCALHOST = "127.0.0.1" 
 728  IP4_ADDRESS_ANY = "0.0.0.0" 
 729  IP6_ADDRESS_LOCALHOST = "::1" 
 730  IP6_ADDRESS_ANY = "::" 
 731  IP4_VERSION = 4 
 732  IP6_VERSION = 6 
 733  VALID_IP_VERSIONS = compat.UniqueFrozenset([IP4_VERSION, IP6_VERSION]) 
 734  # for export to htools 
 735  IP4_FAMILY = socket.AF_INET 
 736  IP6_FAMILY = socket.AF_INET6 
 737   
 738  TCP_PING_TIMEOUT = 10 
 739  DEFAULT_VG = "xenvg" 
 740  DEFAULT_DRBD_HELPER = "/bin/true" 
 741  MIN_VG_SIZE = 20480 
 742  DEFAULT_MAC_PREFIX = "aa:00:00" 
 743  # default maximum instance wait time, in seconds. 
 744  DEFAULT_SHUTDOWN_TIMEOUT = 120 
 745  NODE_MAX_CLOCK_SKEW = 150 
 746  # Time for an intra-cluster disk transfer to wait for a connection 
 747  DISK_TRANSFER_CONNECT_TIMEOUT = 60 
 748  # Disk index separator 
 749  DISK_SEPARATOR = _autoconf.DISK_SEPARATOR 
 750  IP_COMMAND_PATH = _autoconf.IP_PATH 
 751   
 752  #: Key for job IDs in opcode result 
 753  JOB_IDS_KEY = "jobs" 
 754   
 755  # runparts results 
 756  (RUNPARTS_SKIP, 
 757   RUNPARTS_RUN, 
 758   RUNPARTS_ERR) = range(3) 
 759   
 760  RUNPARTS_STATUS = compat.UniqueFrozenset([ 
 761    RUNPARTS_SKIP, 
 762    RUNPARTS_RUN, 
 763    RUNPARTS_ERR, 
 764    ]) 
 765   
 766  # RPC constants 
 767  (RPC_ENCODING_NONE, 
 768   RPC_ENCODING_ZLIB_BASE64) = range(2) 
 769   
 770  # Various time constants for the timeout table 
 771  RPC_TMO_URGENT = 60 # one minute 
 772  RPC_TMO_FAST = 5 * 60 # five minutes 
 773  RPC_TMO_NORMAL = 15 * 60 # 15 minutes 
 774  RPC_TMO_SLOW = 3600 # one hour 
 775  RPC_TMO_4HRS = 4 * 3600 
 776  RPC_TMO_1DAY = 86400 
 777   
 778  # Timeout for connecting to nodes (seconds) 
 779  RPC_CONNECT_TIMEOUT = 5 
 780   
 781  # os related constants 
 782  OS_SCRIPT_CREATE = "create" 
 783  OS_SCRIPT_IMPORT = "import" 
 784  OS_SCRIPT_EXPORT = "export" 
 785  OS_SCRIPT_RENAME = "rename" 
 786  OS_SCRIPT_VERIFY = "verify" 
 787  OS_SCRIPTS = compat.UniqueFrozenset([ 
 788    OS_SCRIPT_CREATE, 
 789    OS_SCRIPT_IMPORT, 
 790    OS_SCRIPT_EXPORT, 
 791    OS_SCRIPT_RENAME, 
 792    OS_SCRIPT_VERIFY, 
 793    ]) 
 794   
 795  OS_API_FILE = "ganeti_api_version" 
 796  OS_VARIANTS_FILE = "variants.list" 
 797  OS_PARAMETERS_FILE = "parameters.list" 
 798   
 799  OS_VALIDATE_PARAMETERS = "parameters" 
 800  OS_VALIDATE_CALLS = compat.UniqueFrozenset([OS_VALIDATE_PARAMETERS]) 
 801   
 802  # External Storage (ES) related constants 
 803  ES_ACTION_CREATE = "create" 
 804  ES_ACTION_REMOVE = "remove" 
 805  ES_ACTION_GROW = "grow" 
 806  ES_ACTION_ATTACH = "attach" 
 807  ES_ACTION_DETACH = "detach" 
 808  ES_ACTION_SETINFO = "setinfo" 
 809  ES_ACTION_VERIFY = "verify" 
 810   
 811  ES_SCRIPT_CREATE = ES_ACTION_CREATE 
 812  ES_SCRIPT_REMOVE = ES_ACTION_REMOVE 
 813  ES_SCRIPT_GROW = ES_ACTION_GROW 
 814  ES_SCRIPT_ATTACH = ES_ACTION_ATTACH 
 815  ES_SCRIPT_DETACH = ES_ACTION_DETACH 
 816  ES_SCRIPT_SETINFO = ES_ACTION_SETINFO 
 817  ES_SCRIPT_VERIFY = ES_ACTION_VERIFY 
 818  ES_SCRIPTS = frozenset([ 
 819    ES_SCRIPT_CREATE, 
 820    ES_SCRIPT_REMOVE, 
 821    ES_SCRIPT_GROW, 
 822    ES_SCRIPT_ATTACH, 
 823    ES_SCRIPT_DETACH, 
 824    ES_SCRIPT_SETINFO, 
 825    ES_SCRIPT_VERIFY 
 826    ]) 
 827   
 828  ES_PARAMETERS_FILE = "parameters.list" 
 829   
 830  # reboot types 
 831  INSTANCE_REBOOT_SOFT = "soft" 
 832  INSTANCE_REBOOT_HARD = "hard" 
 833  INSTANCE_REBOOT_FULL = "full" 
 834   
 835  REBOOT_TYPES = compat.UniqueFrozenset([ 
 836    INSTANCE_REBOOT_SOFT, 
 837    INSTANCE_REBOOT_HARD, 
 838    INSTANCE_REBOOT_FULL, 
 839    ]) 
 840   
 841  # instance reboot behaviors 
 842  INSTANCE_REBOOT_ALLOWED = "reboot" 
 843  INSTANCE_REBOOT_EXIT = "exit" 
 844   
 845  REBOOT_BEHAVIORS = compat.UniqueFrozenset([ 
 846    INSTANCE_REBOOT_ALLOWED, 
 847    INSTANCE_REBOOT_EXIT, 
 848    ]) 
 849   
 850  VTYPE_STRING = "string" 
 851  VTYPE_MAYBE_STRING = "maybe-string" 
 852  VTYPE_BOOL = "bool" 
 853  VTYPE_SIZE = "size" # size, in MiBs 
 854  VTYPE_INT = "int" 
 855  ENFORCEABLE_TYPES = compat.UniqueFrozenset([ 
 856    VTYPE_STRING, 
 857    VTYPE_MAYBE_STRING, 
 858    VTYPE_BOOL, 
 859    VTYPE_SIZE, 
 860    VTYPE_INT, 
 861    ]) 
 862   
 863  # Constant representing that the user does not specify any IP version 
 864  IFACE_NO_IP_VERSION_SPECIFIED = 0 
 865   
 866  VALID_SERIAL_SPEEDS = compat.UniqueFrozenset([ 
 867    75, 
 868    110, 
 869    300, 
 870    600, 
 871    1200, 
 872    1800, 
 873    2400, 
 874    4800, 
 875    9600, 
 876    14400, 
 877    19200, 
 878    28800, 
 879    38400, 
 880    57600, 
 881    115200, 
 882    230400, 
 883    345600, 
 884    460800, 
 885    ]) 
 886   
 887  # HV parameter names (global namespace) 
 888  HV_BOOT_ORDER = "boot_order" 
 889  HV_CDROM_IMAGE_PATH = "cdrom_image_path" 
 890  HV_KVM_CDROM2_IMAGE_PATH = "cdrom2_image_path" 
 891  HV_KVM_FLOPPY_IMAGE_PATH = "floppy_image_path" 
 892  HV_NIC_TYPE = "nic_type" 
 893  HV_DISK_TYPE = "disk_type" 
 894  HV_KVM_CDROM_DISK_TYPE = "cdrom_disk_type" 
 895  HV_VNC_BIND_ADDRESS = "vnc_bind_address" 
 896  HV_VNC_PASSWORD_FILE = "vnc_password_file" 
 897  HV_VNC_TLS = "vnc_tls" 
 898  HV_VNC_X509 = "vnc_x509_path" 
 899  HV_VNC_X509_VERIFY = "vnc_x509_verify" 
 900  HV_KVM_SPICE_BIND = "spice_bind" 
 901  HV_KVM_SPICE_IP_VERSION = "spice_ip_version" 
 902  HV_KVM_SPICE_PASSWORD_FILE = "spice_password_file" 
 903  HV_KVM_SPICE_LOSSLESS_IMG_COMPR = "spice_image_compression" 
 904  HV_KVM_SPICE_JPEG_IMG_COMPR = "spice_jpeg_wan_compression" 
 905  HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR = "spice_zlib_glz_wan_compression" 
 906  HV_KVM_SPICE_STREAMING_VIDEO_DETECTION = "spice_streaming_video" 
 907  HV_KVM_SPICE_AUDIO_COMPR = "spice_playback_compression" 
 908  HV_KVM_SPICE_USE_TLS = "spice_use_tls" 
 909  HV_KVM_SPICE_TLS_CIPHERS = "spice_tls_ciphers" 
 910  HV_KVM_SPICE_USE_VDAGENT = "spice_use_vdagent" 
 911  HV_ACPI = "acpi" 
 912  HV_PAE = "pae" 
 913  HV_USE_BOOTLOADER = "use_bootloader" 
 914  HV_BOOTLOADER_ARGS = "bootloader_args" 
 915  HV_BOOTLOADER_PATH = "bootloader_path" 
 916  HV_KERNEL_ARGS = "kernel_args" 
 917  HV_KERNEL_PATH = "kernel_path" 
 918  HV_INITRD_PATH = "initrd_path" 
 919  HV_ROOT_PATH = "root_path" 
 920  HV_SERIAL_CONSOLE = "serial_console" 
 921  HV_SERIAL_SPEED = "serial_speed" 
 922  HV_USB_MOUSE = "usb_mouse" 
 923  HV_KEYMAP = "keymap" 
 924  HV_DEVICE_MODEL = "device_model" 
 925  HV_INIT_SCRIPT = "init_script" 
 926  HV_MIGRATION_PORT = "migration_port" 
 927  HV_MIGRATION_BANDWIDTH = "migration_bandwidth" 
 928  HV_MIGRATION_DOWNTIME = "migration_downtime" 
 929  HV_MIGRATION_MODE = "migration_mode" 
 930  HV_USE_LOCALTIME = "use_localtime" 
 931  HV_DISK_CACHE = "disk_cache" 
 932  HV_SECURITY_MODEL = "security_model" 
 933  HV_SECURITY_DOMAIN = "security_domain" 
 934  HV_KVM_FLAG = "kvm_flag" 
 935  HV_VHOST_NET = "vhost_net" 
 936  HV_KVM_USE_CHROOT = "use_chroot" 
 937  HV_CPU_MASK = "cpu_mask" 
 938  HV_MEM_PATH = "mem_path" 
 939  HV_PASSTHROUGH = "pci_pass" 
 940  HV_BLOCKDEV_PREFIX = "blockdev_prefix" 
 941  HV_REBOOT_BEHAVIOR = "reboot_behavior" 
 942  HV_CPU_TYPE = "cpu_type" 
 943  HV_CPU_CAP = "cpu_cap" 
 944  HV_CPU_WEIGHT = "cpu_weight" 
 945  HV_CPU_CORES = "cpu_cores" 
 946  HV_CPU_THREADS = "cpu_threads" 
 947  HV_CPU_SOCKETS = "cpu_sockets" 
 948  HV_SOUNDHW = "soundhw" 
 949  HV_USB_DEVICES = "usb_devices" 
 950  HV_VGA = "vga" 
 951  HV_KVM_EXTRA = "kvm_extra" 
 952  HV_KVM_MACHINE_VERSION = "machine_version" 
 953  HV_KVM_PATH = "kvm_path" 
 954  HV_VIF_TYPE = "vif_type" 
 955  HV_VNET_HDR = "vnet_hdr" 
 956  HV_VIRIDIAN = "viridian" 
 957   
 958   
 959  HVS_PARAMETER_TYPES = { 
 960    HV_KVM_PATH: VTYPE_STRING, 
 961    HV_BOOT_ORDER: VTYPE_STRING, 
 962    HV_KVM_FLOPPY_IMAGE_PATH: VTYPE_STRING, 
 963    HV_CDROM_IMAGE_PATH: VTYPE_STRING, 
 964    HV_KVM_CDROM2_IMAGE_PATH: VTYPE_STRING, 
 965    HV_NIC_TYPE: VTYPE_STRING, 
 966    HV_DISK_TYPE: VTYPE_STRING, 
 967    HV_KVM_CDROM_DISK_TYPE: VTYPE_STRING, 
 968    HV_VNC_PASSWORD_FILE: VTYPE_STRING, 
 969    HV_VNC_BIND_ADDRESS: VTYPE_STRING, 
 970    HV_VNC_TLS: VTYPE_BOOL, 
 971    HV_VNC_X509: VTYPE_STRING, 
 972    HV_VNC_X509_VERIFY: VTYPE_BOOL, 
 973    HV_KVM_SPICE_BIND: VTYPE_STRING, 
 974    HV_KVM_SPICE_IP_VERSION: VTYPE_INT, 
 975    HV_KVM_SPICE_PASSWORD_FILE: VTYPE_STRING, 
 976    HV_KVM_SPICE_LOSSLESS_IMG_COMPR: VTYPE_STRING, 
 977    HV_KVM_SPICE_JPEG_IMG_COMPR: VTYPE_STRING, 
 978    HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR: VTYPE_STRING, 
 979    HV_KVM_SPICE_STREAMING_VIDEO_DETECTION: VTYPE_STRING, 
 980    HV_KVM_SPICE_AUDIO_COMPR: VTYPE_BOOL, 
 981    HV_KVM_SPICE_USE_TLS: VTYPE_BOOL, 
 982    HV_KVM_SPICE_TLS_CIPHERS: VTYPE_STRING, 
 983    HV_KVM_SPICE_USE_VDAGENT: VTYPE_BOOL, 
 984    HV_ACPI: VTYPE_BOOL, 
 985    HV_PAE: VTYPE_BOOL, 
 986    HV_USE_BOOTLOADER: VTYPE_BOOL, 
 987    HV_BOOTLOADER_PATH: VTYPE_STRING, 
 988    HV_BOOTLOADER_ARGS: VTYPE_STRING, 
 989    HV_KERNEL_PATH: VTYPE_STRING, 
 990    HV_KERNEL_ARGS: VTYPE_STRING, 
 991    HV_INITRD_PATH: VTYPE_STRING, 
 992    HV_ROOT_PATH: VTYPE_MAYBE_STRING, 
 993    HV_SERIAL_CONSOLE: VTYPE_BOOL, 
 994    HV_SERIAL_SPEED: VTYPE_INT, 
 995    HV_USB_MOUSE: VTYPE_STRING, 
 996    HV_KEYMAP: VTYPE_STRING, 
 997    HV_DEVICE_MODEL: VTYPE_STRING, 
 998    HV_INIT_SCRIPT: VTYPE_STRING, 
 999    HV_MIGRATION_PORT: VTYPE_INT, 
1000    HV_MIGRATION_BANDWIDTH: VTYPE_INT, 
1001    HV_MIGRATION_DOWNTIME: VTYPE_INT, 
1002    HV_MIGRATION_MODE: VTYPE_STRING, 
1003    HV_USE_LOCALTIME: VTYPE_BOOL, 
1004    HV_DISK_CACHE: VTYPE_STRING, 
1005    HV_SECURITY_MODEL: VTYPE_STRING, 
1006    HV_SECURITY_DOMAIN: VTYPE_STRING, 
1007    HV_KVM_FLAG: VTYPE_STRING, 
1008    HV_VHOST_NET: VTYPE_BOOL, 
1009    HV_KVM_USE_CHROOT: VTYPE_BOOL, 
1010    HV_CPU_MASK: VTYPE_STRING, 
1011    HV_MEM_PATH: VTYPE_STRING, 
1012    HV_PASSTHROUGH: VTYPE_STRING, 
1013    HV_BLOCKDEV_PREFIX: VTYPE_STRING, 
1014    HV_REBOOT_BEHAVIOR: VTYPE_STRING, 
1015    HV_CPU_TYPE: VTYPE_STRING, 
1016    HV_CPU_CAP: VTYPE_INT, 
1017    HV_CPU_WEIGHT: VTYPE_INT, 
1018    HV_CPU_CORES: VTYPE_INT, 
1019    HV_CPU_THREADS: VTYPE_INT, 
1020    HV_CPU_SOCKETS: VTYPE_INT, 
1021    HV_SOUNDHW: VTYPE_STRING, 
1022    HV_USB_DEVICES: VTYPE_STRING, 
1023    HV_VGA: VTYPE_STRING, 
1024    HV_KVM_EXTRA: VTYPE_STRING, 
1025    HV_KVM_MACHINE_VERSION: VTYPE_STRING, 
1026    HV_VIF_TYPE: VTYPE_STRING, 
1027    HV_VNET_HDR: VTYPE_BOOL, 
1028    HV_VIRIDIAN: VTYPE_BOOL, 
1029    } 
1030   
1031  HVS_PARAMETERS = frozenset(HVS_PARAMETER_TYPES.keys()) 
1032   
1033  HVS_PARAMETER_TITLES = { 
1034    HV_ACPI: "ACPI", 
1035    HV_BOOT_ORDER: "Boot_order", 
1036    HV_CDROM_IMAGE_PATH: "CDROM_image_path", 
1037    HV_DISK_TYPE: "Disk_type", 
1038    HV_INITRD_PATH: "Initrd_path", 
1039    HV_KERNEL_PATH: "Kernel_path", 
1040    HV_NIC_TYPE: "NIC_type", 
1041    HV_PAE: "PAE", 
1042    HV_VNC_BIND_ADDRESS: "VNC_bind_address", 
1043    HV_PASSTHROUGH: "pci_pass", 
1044    HV_CPU_TYPE: "cpu_type", 
1045    } 
1046   
1047  # Migration statuses 
1048  HV_MIGRATION_COMPLETED = "completed" 
1049  HV_MIGRATION_ACTIVE = "active" 
1050  HV_MIGRATION_FAILED = "failed" 
1051  HV_MIGRATION_CANCELLED = "cancelled" 
1052   
1053  HV_MIGRATION_VALID_STATUSES = compat.UniqueFrozenset([ 
1054    HV_MIGRATION_COMPLETED, 
1055    HV_MIGRATION_ACTIVE, 
1056    HV_MIGRATION_FAILED, 
1057    HV_MIGRATION_CANCELLED, 
1058    ]) 
1059   
1060  HV_MIGRATION_FAILED_STATUSES = compat.UniqueFrozenset([ 
1061    HV_MIGRATION_FAILED, 
1062    HV_MIGRATION_CANCELLED, 
1063    ]) 
1064   
1065  # KVM-specific statuses 
1066  HV_KVM_MIGRATION_VALID_STATUSES = HV_MIGRATION_VALID_STATUSES 
1067   
1068  # Node info keys 
1069  HV_NODEINFO_KEY_VERSION = "hv_version" 
1070   
1071  # Hypervisor state 
1072  HVST_MEMORY_TOTAL = "mem_total" 
1073  HVST_MEMORY_NODE = "mem_node" 
1074  HVST_MEMORY_HV = "mem_hv" 
1075  HVST_CPU_TOTAL = "cpu_total" 
1076  HVST_CPU_NODE = "cpu_node" 
1077   
1078  HVST_DEFAULTS = { 
1079    HVST_MEMORY_TOTAL: 0, 
1080    HVST_MEMORY_NODE: 0, 
1081    HVST_MEMORY_HV: 0, 
1082    HVST_CPU_TOTAL: 1, 
1083    HVST_CPU_NODE: 1, 
1084    } 
1085   
1086  HVSTS_PARAMETER_TYPES = { 
1087    HVST_MEMORY_TOTAL: VTYPE_INT, 
1088    HVST_MEMORY_NODE: VTYPE_INT, 
1089    HVST_MEMORY_HV: VTYPE_INT, 
1090    HVST_CPU_TOTAL: VTYPE_INT, 
1091    HVST_CPU_NODE: VTYPE_INT, 
1092    } 
1093   
1094  HVSTS_PARAMETERS = frozenset(HVSTS_PARAMETER_TYPES.keys()) 
1095   
1096  # Disk state 
1097  DS_DISK_TOTAL = "disk_total" 
1098  DS_DISK_RESERVED = "disk_reserved" 
1099  DS_DISK_OVERHEAD = "disk_overhead" 
1100   
1101  DS_DEFAULTS = { 
1102    DS_DISK_TOTAL: 0, 
1103    DS_DISK_RESERVED: 0, 
1104    DS_DISK_OVERHEAD: 0, 
1105    } 
1106   
1107  DSS_PARAMETER_TYPES = { 
1108    DS_DISK_TOTAL: VTYPE_INT, 
1109    DS_DISK_RESERVED: VTYPE_INT, 
1110    DS_DISK_OVERHEAD: VTYPE_INT, 
1111    } 
1112   
1113  DSS_PARAMETERS = frozenset(DSS_PARAMETER_TYPES.keys()) 
1114  DS_VALID_TYPES = compat.UniqueFrozenset([LD_LV]) 
1115   
1116  # Backend parameter names 
1117  BE_MEMORY = "memory" # deprecated and replaced by max and min mem 
1118  BE_MAXMEM = "maxmem" 
1119  BE_MINMEM = "minmem" 
1120  BE_VCPUS = "vcpus" 
1121  BE_AUTO_BALANCE = "auto_balance" 
1122  BE_ALWAYS_FAILOVER = "always_failover" 
1123  BE_SPINDLE_USE = "spindle_use" 
1124   
1125  BES_PARAMETER_TYPES = { 
1126    BE_MAXMEM: VTYPE_SIZE, 
1127    BE_MINMEM: VTYPE_SIZE, 
1128    BE_VCPUS: VTYPE_INT, 
1129    BE_AUTO_BALANCE: VTYPE_BOOL, 
1130    BE_ALWAYS_FAILOVER: VTYPE_BOOL, 
1131    BE_SPINDLE_USE: VTYPE_INT, 
1132    } 
1133   
1134  BES_PARAMETER_TITLES = { 
1135    BE_AUTO_BALANCE: "Auto_balance", 
1136    BE_MAXMEM: "ConfigMaxMem", 
1137    BE_MINMEM: "ConfigMinMem", 
1138    BE_VCPUS: "ConfigVCPUs", 
1139    } 
1140   
1141  BES_PARAMETER_COMPAT = { 
1142    BE_MEMORY: VTYPE_SIZE, 
1143    } 
1144  BES_PARAMETER_COMPAT.update(BES_PARAMETER_TYPES) 
1145   
1146  BES_PARAMETERS = frozenset(BES_PARAMETER_TYPES.keys()) 
1147   
1148  # instance specs 
1149  ISPEC_MEM_SIZE = "memory-size" 
1150  ISPEC_CPU_COUNT = "cpu-count" 
1151  ISPEC_DISK_COUNT = "disk-count" 
1152  ISPEC_DISK_SIZE = "disk-size" 
1153  ISPEC_NIC_COUNT = "nic-count" 
1154  ISPEC_SPINDLE_USE = "spindle-use" 
1155   
1156  ISPECS_PARAMETER_TYPES = { 
1157    ISPEC_MEM_SIZE: VTYPE_INT, 
1158    ISPEC_CPU_COUNT: VTYPE_INT, 
1159    ISPEC_DISK_COUNT: VTYPE_INT, 
1160    ISPEC_DISK_SIZE: VTYPE_INT, 
1161    ISPEC_NIC_COUNT: VTYPE_INT, 
1162    ISPEC_SPINDLE_USE: VTYPE_INT, 
1163    } 
1164   
1165  ISPECS_PARAMETERS = frozenset(ISPECS_PARAMETER_TYPES.keys()) 
1166   
1167  ISPECS_MINMAX = "minmax" 
1168  ISPECS_MIN = "min" 
1169  ISPECS_MAX = "max" 
1170  ISPECS_STD = "std" 
1171  IPOLICY_DTS = "disk-templates" 
1172  IPOLICY_VCPU_RATIO = "vcpu-ratio" 
1173  IPOLICY_SPINDLE_RATIO = "spindle-ratio" 
1174   
1175  ISPECS_MINMAX_KEYS = compat.UniqueFrozenset([ 
1176    ISPECS_MIN, 
1177    ISPECS_MAX, 
1178    ]) 
1179   
1180  IPOLICY_PARAMETERS = compat.UniqueFrozenset([ 
1181    IPOLICY_VCPU_RATIO, 
1182    IPOLICY_SPINDLE_RATIO, 
1183    ]) 
1184   
1185  IPOLICY_ALL_KEYS = (IPOLICY_PARAMETERS | 
1186                      frozenset([ISPECS_MINMAX, ISPECS_STD, IPOLICY_DTS])) 
1187   
1188  # Node parameter names 
1189  ND_OOB_PROGRAM = "oob_program" 
1190  ND_SPINDLE_COUNT = "spindle_count" 
1191  ND_EXCLUSIVE_STORAGE = "exclusive_storage" 
1192   
1193  NDS_PARAMETER_TYPES = { 
1194    ND_OOB_PROGRAM: VTYPE_STRING, 
1195    ND_SPINDLE_COUNT: VTYPE_INT, 
1196    ND_EXCLUSIVE_STORAGE: VTYPE_BOOL, 
1197    } 
1198   
1199  NDS_PARAMETERS = frozenset(NDS_PARAMETER_TYPES.keys()) 
1200   
1201  NDS_PARAMETER_TITLES = { 
1202    ND_OOB_PROGRAM: "OutOfBandProgram", 
1203    ND_SPINDLE_COUNT: "SpindleCount", 
1204    ND_EXCLUSIVE_STORAGE: "ExclusiveStorage", 
1205    } 
1206   
1207  # Logical Disks parameters 
1208  LDP_RESYNC_RATE = "resync-rate" 
1209  LDP_STRIPES = "stripes" 
1210  LDP_BARRIERS = "disabled-barriers" 
1211  LDP_NO_META_FLUSH = "disable-meta-flush" 
1212  LDP_DEFAULT_METAVG = "default-metavg" 
1213  LDP_DISK_CUSTOM = "disk-custom" 
1214  LDP_NET_CUSTOM = "net-custom" 
1215  LDP_DYNAMIC_RESYNC = "dynamic-resync" 
1216  LDP_PLAN_AHEAD = "c-plan-ahead" 
1217  LDP_FILL_TARGET = "c-fill-target" 
1218  LDP_DELAY_TARGET = "c-delay-target" 
1219  LDP_MAX_RATE = "c-max-rate" 
1220  LDP_MIN_RATE = "c-min-rate" 
1221  LDP_POOL = "pool" 
1222  DISK_LD_TYPES = { 
1223    LDP_RESYNC_RATE: VTYPE_INT, 
1224    LDP_STRIPES: VTYPE_INT, 
1225    LDP_BARRIERS: VTYPE_STRING, 
1226    LDP_NO_META_FLUSH: VTYPE_BOOL, 
1227    LDP_DEFAULT_METAVG: VTYPE_STRING, 
1228    LDP_DISK_CUSTOM: VTYPE_STRING, 
1229    LDP_NET_CUSTOM: VTYPE_STRING, 
1230    LDP_DYNAMIC_RESYNC: VTYPE_BOOL, 
1231    LDP_PLAN_AHEAD: VTYPE_INT, 
1232    LDP_FILL_TARGET: VTYPE_INT, 
1233    LDP_DELAY_TARGET: VTYPE_INT, 
1234    LDP_MAX_RATE: VTYPE_INT, 
1235    LDP_MIN_RATE: VTYPE_INT, 
1236    LDP_POOL: VTYPE_STRING, 
1237    } 
1238  DISK_LD_PARAMETERS = frozenset(DISK_LD_TYPES.keys()) 
1239   
1240  # Disk template parameters (can be set/changed by the user via gnt-cluster and 
1241  # gnt-group) 
1242  DRBD_RESYNC_RATE = "resync-rate" 
1243  DRBD_DATA_STRIPES = "data-stripes" 
1244  DRBD_META_STRIPES = "meta-stripes" 
1245  DRBD_DISK_BARRIERS = "disk-barriers" 
1246  DRBD_META_BARRIERS = "meta-barriers" 
1247  DRBD_DEFAULT_METAVG = "metavg" 
1248  DRBD_DISK_CUSTOM = "disk-custom" 
1249  DRBD_NET_CUSTOM = "net-custom" 
1250  DRBD_DYNAMIC_RESYNC = "dynamic-resync" 
1251  DRBD_PLAN_AHEAD = "c-plan-ahead" 
1252  DRBD_FILL_TARGET = "c-fill-target" 
1253  DRBD_DELAY_TARGET = "c-delay-target" 
1254  DRBD_MAX_RATE = "c-max-rate" 
1255  DRBD_MIN_RATE = "c-min-rate" 
1256  LV_STRIPES = "stripes" 
1257  RBD_POOL = "pool" 
1258  DISK_DT_TYPES = { 
1259    DRBD_RESYNC_RATE: VTYPE_INT, 
1260    DRBD_DATA_STRIPES: VTYPE_INT, 
1261    DRBD_META_STRIPES: VTYPE_INT, 
1262    DRBD_DISK_BARRIERS: VTYPE_STRING, 
1263    DRBD_META_BARRIERS: VTYPE_BOOL, 
1264    DRBD_DEFAULT_METAVG: VTYPE_STRING, 
1265    DRBD_DISK_CUSTOM: VTYPE_STRING, 
1266    DRBD_NET_CUSTOM: VTYPE_STRING, 
1267    DRBD_DYNAMIC_RESYNC: VTYPE_BOOL, 
1268    DRBD_PLAN_AHEAD: VTYPE_INT, 
1269    DRBD_FILL_TARGET: VTYPE_INT, 
1270    DRBD_DELAY_TARGET: VTYPE_INT, 
1271    DRBD_MAX_RATE: VTYPE_INT, 
1272    DRBD_MIN_RATE: VTYPE_INT, 
1273    LV_STRIPES: VTYPE_INT, 
1274    RBD_POOL: VTYPE_STRING, 
1275    } 
1276   
1277  DISK_DT_PARAMETERS = frozenset(DISK_DT_TYPES.keys()) 
1278   
1279  # OOB supported commands 
1280  OOB_POWER_ON = "power-on" 
1281  OOB_POWER_OFF = "power-off" 
1282  OOB_POWER_CYCLE = "power-cycle" 
1283  OOB_POWER_STATUS = "power-status" 
1284  OOB_HEALTH = "health" 
1285   
1286  OOB_COMMANDS = compat.UniqueFrozenset([ 
1287    OOB_POWER_ON, 
1288    OOB_POWER_OFF, 
1289    OOB_POWER_CYCLE, 
1290    OOB_POWER_STATUS, 
1291    OOB_HEALTH, 
1292    ]) 
1293   
1294  OOB_POWER_STATUS_POWERED = "powered" 
1295   
1296  OOB_TIMEOUT = 60 # 60 seconds 
1297  OOB_POWER_DELAY = 2.0 # 2 seconds 
1298   
1299  OOB_STATUS_OK = "OK" 
1300  OOB_STATUS_WARNING = "WARNING" 
1301  OOB_STATUS_CRITICAL = "CRITICAL" 
1302  OOB_STATUS_UNKNOWN = "UNKNOWN" 
1303   
1304  OOB_STATUSES = compat.UniqueFrozenset([ 
1305    OOB_STATUS_OK, 
1306    OOB_STATUS_WARNING, 
1307    OOB_STATUS_CRITICAL, 
1308    OOB_STATUS_UNKNOWN, 
1309    ]) 
1310   
1311  # Instance Parameters Profile 
1312  PP_DEFAULT = "default" 
1313   
1314  # NIC_* constants are used inside the ganeti config 
1315  NIC_MODE = "mode" 
1316  NIC_LINK = "link" 
1317   
1318  NIC_MODE_BRIDGED = "bridged" 
1319  NIC_MODE_ROUTED = "routed" 
1320  NIC_MODE_OVS = "openvswitch" 
1321  NIC_IP_POOL = "pool" 
1322   
1323  NIC_VALID_MODES = compat.UniqueFrozenset([ 
1324    NIC_MODE_BRIDGED, 
1325    NIC_MODE_ROUTED, 
1326    NIC_MODE_OVS, 
1327    ]) 
1328   
1329  RESERVE_ACTION = "reserve" 
1330  RELEASE_ACTION = "release" 
1331   
1332  NICS_PARAMETER_TYPES = { 
1333    NIC_MODE: VTYPE_STRING, 
1334    NIC_LINK: VTYPE_STRING, 
1335    } 
1336   
1337  NICS_PARAMETERS = frozenset(NICS_PARAMETER_TYPES.keys()) 
1338   
1339  # IDISK_* constants are used in opcodes, to create/change disks 
1340  IDISK_SIZE = "size" 
1341  IDISK_MODE = "mode" 
1342  IDISK_ADOPT = "adopt" 
1343  IDISK_VG = "vg" 
1344  IDISK_METAVG = "metavg" 
1345  IDISK_PROVIDER = "provider" 
1346  IDISK_NAME = "name" 
1347  IDISK_PARAMS_TYPES = { 
1348    IDISK_SIZE: VTYPE_SIZE, 
1349    IDISK_MODE: VTYPE_STRING, 
1350    IDISK_ADOPT: VTYPE_STRING, 
1351    IDISK_VG: VTYPE_STRING, 
1352    IDISK_METAVG: VTYPE_STRING, 
1353    IDISK_PROVIDER: VTYPE_STRING, 
1354    IDISK_NAME: VTYPE_MAYBE_STRING, 
1355    } 
1356  IDISK_PARAMS = frozenset(IDISK_PARAMS_TYPES.keys()) 
1357   
1358  MODIFIABLE_IDISK_PARAMS_TYPES = { 
1359    IDISK_MODE: VTYPE_STRING, 
1360    IDISK_NAME: VTYPE_STRING, 
1361    } 
1362  MODIFIABLE_IDISK_PARAMS = frozenset(MODIFIABLE_IDISK_PARAMS_TYPES.keys()) 
1363   
1364  # INIC_* constants are used in opcodes, to create/change nics 
1365  INIC_MAC = "mac" 
1366  INIC_IP = "ip" 
1367  INIC_MODE = "mode" 
1368  INIC_LINK = "link" 
1369  INIC_NETWORK = "network" 
1370  INIC_NAME = "name" 
1371  INIC_PARAMS_TYPES = { 
1372    INIC_IP: VTYPE_MAYBE_STRING, 
1373    INIC_LINK: VTYPE_STRING, 
1374    INIC_MAC: VTYPE_STRING, 
1375    INIC_MODE: VTYPE_STRING, 
1376    INIC_NETWORK: VTYPE_MAYBE_STRING, 
1377    INIC_NAME: VTYPE_MAYBE_STRING, 
1378    } 
1379  INIC_PARAMS = frozenset(INIC_PARAMS_TYPES.keys()) 
1380   
1381  # Hypervisor constants 
1382  HT_XEN_PVM = "xen-pvm" 
1383  HT_FAKE = "fake" 
1384  HT_XEN_HVM = "xen-hvm" 
1385  HT_KVM = "kvm" 
1386  HT_CHROOT = "chroot" 
1387  HT_LXC = "lxc" 
1388  HYPER_TYPES = compat.UniqueFrozenset([ 
1389    HT_XEN_PVM, 
1390    HT_FAKE, 
1391    HT_XEN_HVM, 
1392    HT_KVM, 
1393    HT_CHROOT, 
1394    HT_LXC, 
1395    ]) 
1396  HTS_REQ_PORT = compat.UniqueFrozenset([HT_XEN_HVM, HT_KVM]) 
1397   
1398  VNC_BASE_PORT = 5900 
1399  VNC_DEFAULT_BIND_ADDRESS = IP4_ADDRESS_ANY 
1400   
1401  # NIC types 
1402  HT_NIC_RTL8139 = "rtl8139" 
1403  HT_NIC_NE2K_PCI = "ne2k_pci" 
1404  HT_NIC_NE2K_ISA = "ne2k_isa" 
1405  HT_NIC_I82551 = "i82551" 
1406  HT_NIC_I85557B = "i82557b" 
1407  HT_NIC_I8259ER = "i82559er" 
1408  HT_NIC_PCNET = "pcnet" 
1409  HT_NIC_E1000 = "e1000" 
1410  HT_NIC_PARAVIRTUAL = HT_DISK_PARAVIRTUAL = "paravirtual" 
1411   
1412  HT_HVM_VALID_NIC_TYPES = compat.UniqueFrozenset([ 
1413    HT_NIC_RTL8139, 
1414    HT_NIC_NE2K_PCI, 
1415    HT_NIC_E1000, 
1416    HT_NIC_NE2K_ISA, 
1417    HT_NIC_PARAVIRTUAL, 
1418    ]) 
1419  HT_KVM_VALID_NIC_TYPES = compat.UniqueFrozenset([ 
1420    HT_NIC_RTL8139, 
1421    HT_NIC_NE2K_PCI, 
1422    HT_NIC_NE2K_ISA, 
1423    HT_NIC_I82551, 
1424    HT_NIC_I85557B, 
1425    HT_NIC_I8259ER, 
1426    HT_NIC_PCNET, 
1427    HT_NIC_E1000, 
1428    HT_NIC_PARAVIRTUAL, 
1429    ]) 
1430   
1431  # Vif types 
1432  # default vif type in xen-hvm 
1433  HT_HVM_VIF_IOEMU = "ioemu" 
1434  HT_HVM_VIF_VIF = "vif" 
1435  HT_HVM_VALID_VIF_TYPES = compat.UniqueFrozenset([ 
1436    HT_HVM_VIF_IOEMU, 
1437    HT_HVM_VIF_VIF, 
1438    ]) 
1439   
1440  # Disk types 
1441  HT_DISK_IOEMU = "ioemu" 
1442  HT_DISK_IDE = "ide" 
1443  HT_DISK_SCSI = "scsi" 
1444  HT_DISK_SD = "sd" 
1445  HT_DISK_MTD = "mtd" 
1446  HT_DISK_PFLASH = "pflash" 
1447   
1448  HT_CACHE_DEFAULT = "default" 
1449  HT_CACHE_NONE = "none" 
1450  HT_CACHE_WTHROUGH = "writethrough" 
1451  HT_CACHE_WBACK = "writeback" 
1452  HT_VALID_CACHE_TYPES = compat.UniqueFrozenset([ 
1453    HT_CACHE_DEFAULT, 
1454    HT_CACHE_NONE, 
1455    HT_CACHE_WTHROUGH, 
1456    HT_CACHE_WBACK, 
1457    ]) 
1458   
1459  HT_HVM_VALID_DISK_TYPES = compat.UniqueFrozenset([ 
1460    HT_DISK_PARAVIRTUAL, 
1461    HT_DISK_IOEMU, 
1462    ]) 
1463  HT_KVM_VALID_DISK_TYPES = compat.UniqueFrozenset([ 
1464    HT_DISK_PARAVIRTUAL, 
1465    HT_DISK_IDE, 
1466    HT_DISK_SCSI, 
1467    HT_DISK_SD, 
1468    HT_DISK_MTD, 
1469    HT_DISK_PFLASH, 
1470    ]) 
1471   
1472  # Mouse types: 
1473  HT_MOUSE_MOUSE = "mouse" 
1474  HT_MOUSE_TABLET = "tablet" 
1475   
1476  HT_KVM_VALID_MOUSE_TYPES = compat.UniqueFrozenset([ 
1477    HT_MOUSE_MOUSE, 
1478    HT_MOUSE_TABLET, 
1479    ]) 
1480   
1481  # Boot order 
1482  HT_BO_FLOPPY = "floppy" 
1483  HT_BO_CDROM = "cdrom" 
1484  HT_BO_DISK = "disk" 
1485  HT_BO_NETWORK = "network" 
1486   
1487  HT_KVM_VALID_BO_TYPES = compat.UniqueFrozenset([ 
1488    HT_BO_FLOPPY, 
1489    HT_BO_CDROM, 
1490    HT_BO_DISK, 
1491    HT_BO_NETWORK, 
1492    ]) 
1493   
1494  # SPICE lossless image compression options 
1495  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_GLZ = "auto_glz" 
1496  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_LZ = "auto_lz" 
1497  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_QUIC = "quic" 
1498  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_GLZ = "glz" 
1499  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_LZ = "lz" 
1500  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_OFF = "off" 
1501   
1502  HT_KVM_SPICE_VALID_LOSSLESS_IMG_COMPR_OPTIONS = compat.UniqueFrozenset([ 
1503    HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_GLZ, 
1504    HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_LZ, 
1505    HT_KVM_SPICE_LOSSLESS_IMG_COMPR_QUIC, 
1506    HT_KVM_SPICE_LOSSLESS_IMG_COMPR_GLZ, 
1507    HT_KVM_SPICE_LOSSLESS_IMG_COMPR_LZ, 
1508    HT_KVM_SPICE_LOSSLESS_IMG_COMPR_OFF, 
1509    ]) 
1510   
1511  # SPICE lossy image compression options (valid for both jpeg and zlib-glz) 
1512  HT_KVM_SPICE_LOSSY_IMG_COMPR_AUTO = "auto" 
1513  HT_KVM_SPICE_LOSSY_IMG_COMPR_NEVER = "never" 
1514  HT_KVM_SPICE_LOSSY_IMG_COMPR_ALWAYS = "always" 
1515   
1516  HT_KVM_SPICE_VALID_LOSSY_IMG_COMPR_OPTIONS = compat.UniqueFrozenset([ 
1517    HT_KVM_SPICE_LOSSY_IMG_COMPR_AUTO, 
1518    HT_KVM_SPICE_LOSSY_IMG_COMPR_NEVER, 
1519    HT_KVM_SPICE_LOSSY_IMG_COMPR_ALWAYS, 
1520    ]) 
1521   
1522  # SPICE video stream detection 
1523  HT_KVM_SPICE_VIDEO_STREAM_DETECTION_OFF = "off" 
1524  HT_KVM_SPICE_VIDEO_STREAM_DETECTION_ALL = "all" 
1525  HT_KVM_SPICE_VIDEO_STREAM_DETECTION_FILTER = "filter" 
1526   
1527  HT_KVM_SPICE_VALID_VIDEO_STREAM_DETECTION_OPTIONS = compat.UniqueFrozenset([ 
1528    HT_KVM_SPICE_VIDEO_STREAM_DETECTION_OFF, 
1529    HT_KVM_SPICE_VIDEO_STREAM_DETECTION_ALL, 
1530    HT_KVM_SPICE_VIDEO_STREAM_DETECTION_FILTER, 
1531    ]) 
1532   
1533  # Security models 
1534  HT_SM_NONE = "none" 
1535  HT_SM_USER = "user" 
1536  HT_SM_POOL = "pool" 
1537   
1538  HT_KVM_VALID_SM_TYPES = compat.UniqueFrozenset([ 
1539    HT_SM_NONE, 
1540    HT_SM_USER, 
1541    HT_SM_POOL, 
1542    ]) 
1543   
1544  # Kvm flag values 
1545  HT_KVM_ENABLED = "enabled" 
1546  HT_KVM_DISABLED = "disabled" 
1547   
1548  HT_KVM_FLAG_VALUES = compat.UniqueFrozenset([HT_KVM_ENABLED, HT_KVM_DISABLED]) 
1549   
1550  # Migration type 
1551  HT_MIGRATION_LIVE = "live" 
1552  HT_MIGRATION_NONLIVE = "non-live" 
1553  HT_MIGRATION_MODES = compat.UniqueFrozenset([ 
1554    HT_MIGRATION_LIVE, 
1555    HT_MIGRATION_NONLIVE, 
1556    ]) 
1557   
1558  # Cluster Verify steps 
1559  VERIFY_NPLUSONE_MEM = "nplusone_mem" 
1560  VERIFY_OPTIONAL_CHECKS = compat.UniqueFrozenset([VERIFY_NPLUSONE_MEM]) 
1561   
1562  # Cluster Verify error classes 
1563  CV_TCLUSTER = "cluster" 
1564  CV_TGROUP = "group" 
1565  CV_TNODE = "node" 
1566  CV_TINSTANCE = "instance" 
1567   
1568  # Cluster Verify error codes and documentation 
1569  CV_ECLUSTERCFG = \ 
1570    (CV_TCLUSTER, "ECLUSTERCFG", "Cluster configuration verification failure") 
1571  CV_ECLUSTERCERT = \ 
1572    (CV_TCLUSTER, "ECLUSTERCERT", 
1573     "Cluster certificate files verification failure") 
1574  CV_ECLUSTERFILECHECK = \ 
1575    (CV_TCLUSTER, "ECLUSTERFILECHECK", 
1576     "Cluster configuration verification failure") 
1577  CV_ECLUSTERDANGLINGNODES = \ 
1578    (CV_TNODE, "ECLUSTERDANGLINGNODES", 
1579     "Some nodes belong to non-existing groups") 
1580  CV_ECLUSTERDANGLINGINST = \ 
1581    (CV_TNODE, "ECLUSTERDANGLINGINST", 
1582     "Some instances have a non-existing primary node") 
1583  CV_EGROUPDIFFERENTPVSIZE = \ 
1584    (CV_TGROUP, "EGROUPDIFFERENTPVSIZE", "PVs in the group have different sizes") 
1585  CV_EINSTANCEBADNODE = \ 
1586    (CV_TINSTANCE, "EINSTANCEBADNODE", 
1587     "Instance marked as running lives on an offline node") 
1588  CV_EINSTANCEDOWN = \ 
1589    (CV_TINSTANCE, "EINSTANCEDOWN", "Instance not running on its primary node") 
1590  CV_EINSTANCELAYOUT = \ 
1591    (CV_TINSTANCE, "EINSTANCELAYOUT", "Instance has multiple secondary nodes") 
1592  CV_EINSTANCEMISSINGDISK = \ 
1593    (CV_TINSTANCE, "EINSTANCEMISSINGDISK", "Missing volume on an instance") 
1594  CV_EINSTANCEFAULTYDISK = \ 
1595    (CV_TINSTANCE, "EINSTANCEFAULTYDISK", 
1596     "Impossible to retrieve status for a disk") 
1597  CV_EINSTANCEWRONGNODE = \ 
1598    (CV_TINSTANCE, "EINSTANCEWRONGNODE", "Instance running on the wrong node") 
1599  CV_EINSTANCESPLITGROUPS = \ 
1600    (CV_TINSTANCE, "EINSTANCESPLITGROUPS", 
1601     "Instance with primary and secondary nodes in different groups") 
1602  CV_EINSTANCEPOLICY = \ 
1603    (CV_TINSTANCE, "EINSTANCEPOLICY", 
1604     "Instance does not meet policy") 
1605  CV_EINSTANCEUNSUITABLENODE = \ 
1606    (CV_TINSTANCE, "EINSTANCEUNSUITABLENODE", 
1607     "Instance running on nodes that are not suitable for it") 
1608  CV_ENODEDRBD = \ 
1609    (CV_TNODE, "ENODEDRBD", "Error parsing the DRBD status file") 
1610  CV_ENODEDRBDHELPER = \ 
1611    (CV_TNODE, "ENODEDRBDHELPER", "Error caused by the DRBD helper") 
1612  CV_ENODEFILECHECK = \ 
1613    (CV_TNODE, "ENODEFILECHECK", 
1614     "Error retrieving the checksum of the node files") 
1615  CV_ENODEHOOKS = \ 
1616    (CV_TNODE, "ENODEHOOKS", "Communication failure in hooks execution") 
1617  CV_ENODEHV = \ 
1618    (CV_TNODE, "ENODEHV", "Hypervisor parameters verification failure") 
1619  CV_ENODELVM = \ 
1620    (CV_TNODE, "ENODELVM", "LVM-related node error") 
1621  CV_ENODEN1 = \ 
1622    (CV_TNODE, "ENODEN1", "Not enough memory to accommodate instance failovers") 
1623  CV_ENODENET = \ 
1624    (CV_TNODE, "ENODENET", "Network-related node error") 
1625  CV_ENODEOS = \ 
1626    (CV_TNODE, "ENODEOS", "OS-related node error") 
1627  CV_ENODEORPHANINSTANCE = \ 
1628    (CV_TNODE, "ENODEORPHANINSTANCE", "Unknown intance running on a node") 
1629  CV_ENODEORPHANLV = \ 
1630    (CV_TNODE, "ENODEORPHANLV", "Unknown LVM logical volume") 
1631  CV_ENODERPC = \ 
1632    (CV_TNODE, "ENODERPC", 
1633     "Error during connection to the primary node of an instance") 
1634  CV_ENODESSH = \ 
1635    (CV_TNODE, "ENODESSH", "SSH-related node error") 
1636  CV_ENODEVERSION = \ 
1637    (CV_TNODE, "ENODEVERSION", 
1638     "Protocol version mismatch or Ganeti version mismatch") 
1639  CV_ENODESETUP = \ 
1640    (CV_TNODE, "ENODESETUP", "Node setup error") 
1641  CV_ENODETIME = \ 
1642    (CV_TNODE, "ENODETIME", "Node returned invalid time") 
1643  CV_ENODEOOBPATH = \ 
1644    (CV_TNODE, "ENODEOOBPATH", "Invalid Out Of Band path") 
1645  CV_ENODEUSERSCRIPTS = \ 
1646    (CV_TNODE, "ENODEUSERSCRIPTS", "User scripts not present or not executable") 
1647  CV_ENODEFILESTORAGEPATHS = \ 
1648    (CV_TNODE, "ENODEFILESTORAGEPATHS", "Detected bad file storage paths") 
1649   
1650  CV_ALL_ECODES = compat.UniqueFrozenset([ 
1651    CV_ECLUSTERCFG, 
1652    CV_ECLUSTERCERT, 
1653    CV_ECLUSTERFILECHECK, 
1654    CV_ECLUSTERDANGLINGNODES, 
1655    CV_ECLUSTERDANGLINGINST, 
1656    CV_EINSTANCEBADNODE, 
1657    CV_EINSTANCEDOWN, 
1658    CV_EINSTANCELAYOUT, 
1659    CV_EINSTANCEMISSINGDISK, 
1660    CV_EINSTANCEFAULTYDISK, 
1661    CV_EINSTANCEWRONGNODE, 
1662    CV_EINSTANCESPLITGROUPS, 
1663    CV_EINSTANCEPOLICY, 
1664    CV_ENODEDRBD, 
1665    CV_ENODEDRBDHELPER, 
1666    CV_ENODEFILECHECK, 
1667    CV_ENODEHOOKS, 
1668    CV_ENODEHV, 
1669    CV_ENODELVM, 
1670    CV_ENODEN1, 
1671    CV_ENODENET, 
1672    CV_ENODEOS, 
1673    CV_ENODEORPHANINSTANCE, 
1674    CV_ENODEORPHANLV, 
1675    CV_ENODERPC, 
1676    CV_ENODESSH, 
1677    CV_ENODEVERSION, 
1678    CV_ENODESETUP, 
1679    CV_ENODETIME, 
1680    CV_ENODEOOBPATH, 
1681    CV_ENODEUSERSCRIPTS, 
1682    CV_ENODEFILESTORAGEPATHS, 
1683    ]) 
1684   
1685  CV_ALL_ECODES_STRINGS = \ 
1686    compat.UniqueFrozenset(estr for (_, estr, _) in CV_ALL_ECODES) 
1687   
1688  # Node verify constants 
1689  NV_BRIDGES = "bridges" 
1690  NV_DRBDHELPER = "drbd-helper" 
1691  NV_DRBDLIST = "drbd-list" 
1692  NV_EXCLUSIVEPVS = "exclusive-pvs" 
1693  NV_FILELIST = "filelist" 
1694  NV_FILE_STORAGE_PATHS = "file-storage-paths" 
1695  NV_HVINFO = "hvinfo" 
1696  NV_HVPARAMS = "hvparms" 
1697  NV_HYPERVISOR = "hypervisor" 
1698  NV_INSTANCELIST = "instancelist" 
1699  NV_LVLIST = "lvlist" 
1700  NV_MASTERIP = "master-ip" 
1701  NV_NODELIST = "nodelist" 
1702  NV_NODENETTEST = "node-net-test" 
1703  NV_NODESETUP = "nodesetup" 
1704  NV_OOB_PATHS = "oob-paths" 
1705  NV_OSLIST = "oslist" 
1706  NV_PVLIST = "pvlist" 
1707  NV_TIME = "time" 
1708  NV_USERSCRIPTS = "user-scripts" 
1709  NV_VERSION = "version" 
1710  NV_VGLIST = "vglist" 
1711  NV_VMNODES = "vmnodes" 
1712   
1713  # Instance status 
1714  INSTST_RUNNING = "running" 
1715  INSTST_ADMINDOWN = "ADMIN_down" 
1716  INSTST_ADMINOFFLINE = "ADMIN_offline" 
1717  INSTST_NODEOFFLINE = "ERROR_nodeoffline" 
1718  INSTST_NODEDOWN = "ERROR_nodedown" 
1719  INSTST_WRONGNODE = "ERROR_wrongnode" 
1720  INSTST_ERRORUP = "ERROR_up" 
1721  INSTST_ERRORDOWN = "ERROR_down" 
1722  INSTST_ALL = compat.UniqueFrozenset([ 
1723    INSTST_RUNNING, 
1724    INSTST_ADMINDOWN, 
1725    INSTST_ADMINOFFLINE, 
1726    INSTST_NODEOFFLINE, 
1727    INSTST_NODEDOWN, 
1728    INSTST_WRONGNODE, 
1729    INSTST_ERRORUP, 
1730    INSTST_ERRORDOWN, 
1731    ]) 
1732   
1733  # Admin states 
1734  ADMINST_UP = "up" 
1735  ADMINST_DOWN = "down" 
1736  ADMINST_OFFLINE = "offline" 
1737  ADMINST_ALL = compat.UniqueFrozenset([ 
1738    ADMINST_UP, 
1739    ADMINST_DOWN, 
1740    ADMINST_OFFLINE, 
1741    ]) 
1742   
1743  # Node roles 
1744  NR_REGULAR = "R" 
1745  NR_MASTER = "M" 
1746  NR_MCANDIDATE = "C" 
1747  NR_DRAINED = "D" 
1748  NR_OFFLINE = "O" 
1749  NR_ALL = compat.UniqueFrozenset([ 
1750    NR_REGULAR, 
1751    NR_MASTER, 
1752    NR_MCANDIDATE, 
1753    NR_DRAINED, 
1754    NR_OFFLINE, 
1755    ]) 
1756   
1757  # SSL certificate check constants (in days) 
1758  SSL_CERT_EXPIRATION_WARN = 30 
1759  SSL_CERT_EXPIRATION_ERROR = 7 
1760   
1761  # Allocator framework constants 
1762  IALLOCATOR_VERSION = 2 
1763  IALLOCATOR_DIR_IN = "in" 
1764  IALLOCATOR_DIR_OUT = "out" 
1765  VALID_IALLOCATOR_DIRECTIONS = compat.UniqueFrozenset([ 
1766    IALLOCATOR_DIR_IN, 
1767    IALLOCATOR_DIR_OUT, 
1768    ]) 
1769  IALLOCATOR_MODE_ALLOC = "allocate" 
1770  IALLOCATOR_MODE_RELOC = "relocate" 
1771  IALLOCATOR_MODE_CHG_GROUP = "change-group" 
1772  IALLOCATOR_MODE_NODE_EVAC = "node-evacuate" 
1773  IALLOCATOR_MODE_MULTI_ALLOC = "multi-allocate" 
1774  VALID_IALLOCATOR_MODES = compat.UniqueFrozenset([ 
1775    IALLOCATOR_MODE_ALLOC, 
1776    IALLOCATOR_MODE_RELOC, 
1777    IALLOCATOR_MODE_CHG_GROUP, 
1778    IALLOCATOR_MODE_NODE_EVAC, 
1779    IALLOCATOR_MODE_MULTI_ALLOC, 
1780    ]) 
1781  IALLOCATOR_SEARCH_PATH = _autoconf.IALLOCATOR_SEARCH_PATH 
1782  DEFAULT_IALLOCATOR_SHORTCUT = "." 
1783   
1784  IALLOCATOR_NEVAC_PRI = "primary-only" 
1785  IALLOCATOR_NEVAC_SEC = "secondary-only" 
1786  IALLOCATOR_NEVAC_ALL = "all" 
1787  IALLOCATOR_NEVAC_MODES = compat.UniqueFrozenset([ 
1788    IALLOCATOR_NEVAC_PRI, 
1789    IALLOCATOR_NEVAC_SEC, 
1790    IALLOCATOR_NEVAC_ALL, 
1791    ]) 
1792   
1793  # Node evacuation 
1794  NODE_EVAC_PRI = "primary-only" 
1795  NODE_EVAC_SEC = "secondary-only" 
1796  NODE_EVAC_ALL = "all" 
1797  NODE_EVAC_MODES = compat.UniqueFrozenset([ 
1798    NODE_EVAC_PRI, 
1799    NODE_EVAC_SEC, 
1800    NODE_EVAC_ALL, 
1801    ]) 
1802   
1803  # Job queue 
1804  JOB_QUEUE_VERSION = 1 
1805  JOB_QUEUE_SIZE_HARD_LIMIT = 5000 
1806  JOB_QUEUE_FILES_PERMS = 0640 
1807   
1808  JOB_ID_TEMPLATE = r"\d+" 
1809  JOB_FILE_RE = re.compile(r"^job-(%s)$" % JOB_ID_TEMPLATE) 
1810   
1811  # unchanged job return 
1812  JOB_NOTCHANGED = "nochange" 
1813   
1814  # Job status 
1815  JOB_STATUS_QUEUED = "queued" 
1816  JOB_STATUS_WAITING = "waiting" 
1817  JOB_STATUS_CANCELING = "canceling" 
1818  JOB_STATUS_RUNNING = "running" 
1819  JOB_STATUS_CANCELED = "canceled" 
1820  JOB_STATUS_SUCCESS = "success" 
1821  JOB_STATUS_ERROR = "error" 
1822  JOBS_PENDING = compat.UniqueFrozenset([ 
1823    JOB_STATUS_QUEUED, 
1824    JOB_STATUS_WAITING, 
1825    JOB_STATUS_CANCELING, 
1826    ]) 
1827  JOBS_FINALIZED = compat.UniqueFrozenset([ 
1828    JOB_STATUS_CANCELED, 
1829    JOB_STATUS_SUCCESS, 
1830    JOB_STATUS_ERROR, 
1831    ]) 
1832  JOB_STATUS_ALL = compat.UniqueFrozenset([ 
1833    JOB_STATUS_RUNNING, 
1834    ]) | JOBS_PENDING | JOBS_FINALIZED 
1835   
1836  # OpCode status 
1837  # not yet finalized 
1838  OP_STATUS_QUEUED = "queued" 
1839  OP_STATUS_WAITING = "waiting" 
1840  OP_STATUS_CANCELING = "canceling" 
1841  OP_STATUS_RUNNING = "running" 
1842  # finalized 
1843  OP_STATUS_CANCELED = "canceled" 
1844  OP_STATUS_SUCCESS = "success" 
1845  OP_STATUS_ERROR = "error" 
1846  OPS_FINALIZED = compat.UniqueFrozenset([ 
1847    OP_STATUS_CANCELED, 
1848    OP_STATUS_SUCCESS, 
1849    OP_STATUS_ERROR, 
1850    ]) 
1851   
1852  # OpCode priority 
1853  OP_PRIO_LOWEST = +19 
1854  OP_PRIO_HIGHEST = -20 
1855   
1856  OP_PRIO_LOW = +10 
1857  OP_PRIO_NORMAL = 0 
1858  OP_PRIO_HIGH = -10 
1859   
1860  OP_PRIO_SUBMIT_VALID = compat.UniqueFrozenset([ 
1861    OP_PRIO_LOW, 
1862    OP_PRIO_NORMAL, 
1863    OP_PRIO_HIGH, 
1864    ]) 
1865   
1866  OP_PRIO_DEFAULT = OP_PRIO_NORMAL 
1867   
1868  # Lock recalculate mode 
1869  LOCKS_REPLACE = "replace" 
1870  LOCKS_APPEND = "append" 
1871   
1872  # Lock timeout (sum) before we should go into blocking acquire (still 
1873  # can be reset by priority change); computed as max time (10 hours) 
1874  # before we should actually go into blocking acquire given that we 
1875  # start from default priority level; in seconds 
1876  # TODO 
1877  LOCK_ATTEMPTS_TIMEOUT = 10 * 3600 / (OP_PRIO_DEFAULT - OP_PRIO_HIGHEST) 
1878  LOCK_ATTEMPTS_MAXWAIT = 15.0 
1879  LOCK_ATTEMPTS_MINWAIT = 1.0 
1880   
1881  # Execution log types 
1882  ELOG_MESSAGE = "message" 
1883  ELOG_REMOTE_IMPORT = "remote-import" 
1884  ELOG_JQUEUE_TEST = "jqueue-test" 
1885   
1886  # /etc/hosts modification 
1887  ETC_HOSTS_ADD = "add" 
1888  ETC_HOSTS_REMOVE = "remove" 
1889   
1890  # Job queue test 
1891  JQT_MSGPREFIX = "TESTMSG=" 
1892  JQT_EXPANDNAMES = "expandnames" 
1893  JQT_EXEC = "exec" 
1894  JQT_LOGMSG = "logmsg" 
1895  JQT_STARTMSG = "startmsg" 
1896  JQT_ALL = compat.UniqueFrozenset([ 
1897    JQT_EXPANDNAMES, 
1898    JQT_EXEC, 
1899    JQT_LOGMSG, 
1900    JQT_STARTMSG, 
1901    ]) 
1902   
1903  # Query resources 
1904  QR_CLUSTER = "cluster" 
1905  QR_INSTANCE = "instance" 
1906  QR_NODE = "node" 
1907  QR_LOCK = "lock" 
1908  QR_GROUP = "group" 
1909  QR_OS = "os" 
1910  QR_JOB = "job" 
1911  QR_EXPORT = "export" 
1912  QR_NETWORK = "network" 
1913  QR_EXTSTORAGE = "extstorage" 
1914   
1915  #: List of resources which can be queried using L{opcodes.OpQuery} 
1916  QR_VIA_OP = compat.UniqueFrozenset([ 
1917    QR_CLUSTER, 
1918    QR_INSTANCE, 
1919    QR_NODE, 
1920    QR_GROUP, 
1921    QR_OS, 
1922    QR_EXPORT, 
1923    QR_NETWORK, 
1924    QR_EXTSTORAGE, 
1925    ]) 
1926   
1927  #: List of resources which can be queried using Local UniX Interface 
1928  QR_VIA_LUXI = QR_VIA_OP.union([ 
1929    QR_LOCK, 
1930    QR_JOB, 
1931    ]) 
1932   
1933  #: List of resources which can be queried using RAPI 
1934  QR_VIA_RAPI = QR_VIA_LUXI 
1935   
1936  # Query field types 
1937  QFT_UNKNOWN = "unknown" 
1938  QFT_TEXT = "text" 
1939  QFT_BOOL = "bool" 
1940  QFT_NUMBER = "number" 
1941  QFT_UNIT = "unit" 
1942  QFT_TIMESTAMP = "timestamp" 
1943  QFT_OTHER = "other" 
1944   
1945  #: All query field types 
1946  QFT_ALL = compat.UniqueFrozenset([ 
1947    QFT_UNKNOWN, 
1948    QFT_TEXT, 
1949    QFT_BOOL, 
1950    QFT_NUMBER, 
1951    QFT_UNIT, 
1952    QFT_TIMESTAMP, 
1953    QFT_OTHER, 
1954    ]) 
1955   
1956  # Query result field status (don't change or reuse values as they're used by 
1957  # clients) 
1958  #: Normal field status 
1959  RS_NORMAL = 0 
1960  #: Unknown field 
1961  RS_UNKNOWN = 1 
1962  #: No data (e.g. RPC error), can be used instead of L{RS_OFFLINE} 
1963  RS_NODATA = 2 
1964  #: Value unavailable/unsupported for item; if this field is supported 
1965  #: but we cannot get the data for the moment, RS_NODATA or 
1966  #: RS_OFFLINE should be used 
1967  RS_UNAVAIL = 3 
1968  #: Resource marked offline 
1969  RS_OFFLINE = 4 
1970   
1971  RS_ALL = compat.UniqueFrozenset([ 
1972    RS_NORMAL, 
1973    RS_UNKNOWN, 
1974    RS_NODATA, 
1975    RS_UNAVAIL, 
1976    RS_OFFLINE, 
1977    ]) 
1978   
1979  #: Dictionary with special field cases and their verbose/terse formatting 
1980  RSS_DESCRIPTION = { 
1981    RS_UNKNOWN: ("(unknown)", "??"), 
1982    RS_NODATA: ("(nodata)", "?"), 
1983    RS_OFFLINE: ("(offline)", "*"), 
1984    RS_UNAVAIL: ("(unavail)", "-"), 
1985    } 
1986   
1987  # max dynamic devices 
1988  MAX_NICS = 8 
1989  MAX_DISKS = 16 
1990   
1991  # SSCONF file prefix 
1992  SSCONF_FILEPREFIX = "ssconf_" 
1993  # SSCONF keys 
1994  SS_CLUSTER_NAME = "cluster_name" 
1995  SS_CLUSTER_TAGS = "cluster_tags" 
1996  SS_FILE_STORAGE_DIR = "file_storage_dir" 
1997  SS_SHARED_FILE_STORAGE_DIR = "shared_file_storage_dir" 
1998  SS_MASTER_CANDIDATES = "master_candidates" 
1999  SS_MASTER_CANDIDATES_IPS = "master_candidates_ips" 
2000  SS_MASTER_IP = "master_ip" 
2001  SS_MASTER_NETDEV = "master_netdev" 
2002  SS_MASTER_NETMASK = "master_netmask" 
2003  SS_MASTER_NODE = "master_node" 
2004  SS_NODE_LIST = "node_list" 
2005  SS_NODE_PRIMARY_IPS = "node_primary_ips" 
2006  SS_NODE_SECONDARY_IPS = "node_secondary_ips" 
2007  SS_OFFLINE_NODES = "offline_nodes" 
2008  SS_ONLINE_NODES = "online_nodes" 
2009  SS_PRIMARY_IP_FAMILY = "primary_ip_family" 
2010  SS_INSTANCE_LIST = "instance_list" 
2011  SS_RELEASE_VERSION = "release_version" 
2012  SS_HYPERVISOR_LIST = "hypervisor_list" 
2013  SS_MAINTAIN_NODE_HEALTH = "maintain_node_health" 
2014  SS_UID_POOL = "uid_pool" 
2015  SS_NODEGROUPS = "nodegroups" 
2016  SS_NETWORKS = "networks" 
2017   
2018  SS_FILE_PERMS = 0444 
2019   
2020  # cluster wide default parameters 
2021  DEFAULT_ENABLED_HYPERVISOR = HT_XEN_PVM 
2022   
2023  HVC_DEFAULTS = { 
2024    HT_XEN_PVM: { 
2025      HV_USE_BOOTLOADER: False, 
2026      HV_BOOTLOADER_PATH: XEN_BOOTLOADER, 
2027      HV_BOOTLOADER_ARGS: "", 
2028      HV_KERNEL_PATH: XEN_KERNEL, 
2029      HV_INITRD_PATH: "", 
2030      HV_ROOT_PATH: "/dev/xvda1", 
2031      HV_KERNEL_ARGS: "ro", 
2032      HV_MIGRATION_PORT: 8002, 
2033      HV_MIGRATION_MODE: HT_MIGRATION_LIVE, 
2034      HV_BLOCKDEV_PREFIX: "sd", 
2035      HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED, 
2036      HV_CPU_MASK: CPU_PINNING_ALL, 
2037      HV_CPU_CAP: 0, 
2038      HV_CPU_WEIGHT: 256, 
2039      }, 
2040    HT_XEN_HVM: { 
2041      HV_BOOT_ORDER: "cd", 
2042      HV_CDROM_IMAGE_PATH: "", 
2043      HV_NIC_TYPE: HT_NIC_RTL8139, 
2044      HV_DISK_TYPE: HT_DISK_PARAVIRTUAL, 
2045      HV_VNC_BIND_ADDRESS: IP4_ADDRESS_ANY, 
2046      HV_VNC_PASSWORD_FILE: pathutils.VNC_PASSWORD_FILE, 
2047      HV_ACPI: True, 
2048      HV_PAE: True, 
2049      HV_KERNEL_PATH: "/usr/lib/xen/boot/hvmloader", 
2050      HV_DEVICE_MODEL: "/usr/lib/xen/bin/qemu-dm", 
2051      HV_MIGRATION_PORT: 8002, 
2052      HV_MIGRATION_MODE: HT_MIGRATION_NONLIVE, 
2053      HV_USE_LOCALTIME: False, 
2054      HV_BLOCKDEV_PREFIX: "hd", 
2055      HV_PASSTHROUGH: "", 
2056      HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED, 
2057      HV_CPU_MASK: CPU_PINNING_ALL, 
2058      HV_CPU_CAP: 0, 
2059      HV_CPU_WEIGHT: 256, 
2060      HV_VIF_TYPE: HT_HVM_VIF_IOEMU, 
2061      HV_VIRIDIAN: False, 
2062      }, 
2063    HT_KVM: { 
2064      HV_KVM_PATH: KVM_PATH, 
2065      HV_KERNEL_PATH: KVM_KERNEL, 
2066      HV_INITRD_PATH: "", 
2067      HV_KERNEL_ARGS: "ro", 
2068      HV_ROOT_PATH: "/dev/vda1", 
2069      HV_ACPI: True, 
2070      HV_SERIAL_CONSOLE: True, 
2071      HV_SERIAL_SPEED: 38400, 
2072      HV_VNC_BIND_ADDRESS: "", 
2073      HV_VNC_TLS: False, 
2074      HV_VNC_X509: "", 
2075      HV_VNC_X509_VERIFY: False, 
2076      HV_VNC_PASSWORD_FILE: "", 
2077      HV_KVM_SPICE_BIND: "", 
2078      HV_KVM_SPICE_IP_VERSION: IFACE_NO_IP_VERSION_SPECIFIED, 
2079      HV_KVM_SPICE_PASSWORD_FILE: "", 
2080      HV_KVM_SPICE_LOSSLESS_IMG_COMPR: "", 
2081      HV_KVM_SPICE_JPEG_IMG_COMPR: "", 
2082      HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR: "", 
2083      HV_KVM_SPICE_STREAMING_VIDEO_DETECTION: "", 
2084      HV_KVM_SPICE_AUDIO_COMPR: True, 
2085      HV_KVM_SPICE_USE_TLS: False, 
2086      HV_KVM_SPICE_TLS_CIPHERS: OPENSSL_CIPHERS, 
2087      HV_KVM_SPICE_USE_VDAGENT: True, 
2088      HV_KVM_FLOPPY_IMAGE_PATH: "", 
2089      HV_CDROM_IMAGE_PATH: "", 
2090      HV_KVM_CDROM2_IMAGE_PATH: "", 
2091      HV_BOOT_ORDER: HT_BO_DISK, 
2092      HV_NIC_TYPE: HT_NIC_PARAVIRTUAL, 
2093      HV_DISK_TYPE: HT_DISK_PARAVIRTUAL, 
2094      HV_KVM_CDROM_DISK_TYPE: "", 
2095      HV_USB_MOUSE: "", 
2096      HV_KEYMAP: "", 
2097      HV_MIGRATION_PORT: 8102, 
2098      HV_MIGRATION_BANDWIDTH: 32, # MiB/s 
2099      HV_MIGRATION_DOWNTIME: 30,  # ms 
2100      HV_MIGRATION_MODE: HT_MIGRATION_LIVE, 
2101      HV_USE_LOCALTIME: False, 
2102      HV_DISK_CACHE: HT_CACHE_DEFAULT, 
2103      HV_SECURITY_MODEL: HT_SM_NONE, 
2104      HV_SECURITY_DOMAIN: "", 
2105      HV_KVM_FLAG: "", 
2106      HV_VHOST_NET: False, 
2107      HV_KVM_USE_CHROOT: False, 
2108      HV_MEM_PATH: "", 
2109      HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED, 
2110      HV_CPU_MASK: CPU_PINNING_ALL, 
2111      HV_CPU_TYPE: "", 
2112      HV_CPU_CORES: 0, 
2113      HV_CPU_THREADS: 0, 
2114      HV_CPU_SOCKETS: 0, 
2115      HV_SOUNDHW: "", 
2116      HV_USB_DEVICES: "", 
2117      HV_VGA: "", 
2118      HV_KVM_EXTRA: "", 
2119      HV_KVM_MACHINE_VERSION: "", 
2120      HV_VNET_HDR: True, 
2121      }, 
2122    HT_FAKE: {}, 
2123    HT_CHROOT: { 
2124      HV_INIT_SCRIPT: "/ganeti-chroot", 
2125      }, 
2126    HT_LXC: { 
2127      HV_CPU_MASK: "", 
2128      }, 
2129    } 
2130   
2131  HVC_GLOBALS = compat.UniqueFrozenset([ 
2132    HV_MIGRATION_PORT, 
2133    HV_MIGRATION_BANDWIDTH, 
2134    HV_MIGRATION_MODE, 
2135    ]) 
2136   
2137  BEC_DEFAULTS = { 
2138    BE_MINMEM: 128, 
2139    BE_MAXMEM: 128, 
2140    BE_VCPUS: 1, 
2141    BE_AUTO_BALANCE: True, 
2142    BE_ALWAYS_FAILOVER: False, 
2143    BE_SPINDLE_USE: 1, 
2144    } 
2145   
2146  NDC_DEFAULTS = { 
2147    ND_OOB_PROGRAM: "", 
2148    ND_SPINDLE_COUNT: 1, 
2149    ND_EXCLUSIVE_STORAGE: False, 
2150    } 
2151   
2152  NDC_GLOBALS = compat.UniqueFrozenset([ 
2153    ND_EXCLUSIVE_STORAGE, 
2154    ]) 
2155   
2156  DISK_LD_DEFAULTS = { 
2157    LD_DRBD8: { 
2158      LDP_RESYNC_RATE: CLASSIC_DRBD_SYNC_SPEED, 
2159      LDP_BARRIERS: _autoconf.DRBD_BARRIERS, 
2160      LDP_NO_META_FLUSH: _autoconf.DRBD_NO_META_FLUSH, 
2161      LDP_DEFAULT_METAVG: DEFAULT_VG, 
2162      LDP_DISK_CUSTOM: "", 
2163      LDP_NET_CUSTOM: "", 
2164      LDP_DYNAMIC_RESYNC: False, 
2165   
2166      # The default values for the DRBD dynamic resync speed algorithm 
2167      # are taken from the drbsetup 8.3.11 man page, except for 
2168      # c-plan-ahead (that we don't need to set to 0, because we have a 
2169      # separate option to enable it) and for c-max-rate, that we cap to 
2170      # the default value for the static resync rate. 
2171      LDP_PLAN_AHEAD: 20, # ds 
2172      LDP_FILL_TARGET: 0, # sectors 
2173      LDP_DELAY_TARGET: 1, # ds 
2174      LDP_MAX_RATE: CLASSIC_DRBD_SYNC_SPEED, # KiB/s 
2175      LDP_MIN_RATE: 4 * 1024, # KiB/s 
2176      }, 
2177    LD_LV: { 
2178      LDP_STRIPES: _autoconf.LVM_STRIPECOUNT 
2179      }, 
2180    LD_FILE: {}, 
2181    LD_BLOCKDEV: {}, 
2182    LD_RBD: { 
2183      LDP_POOL: "rbd" 
2184      }, 
2185    LD_EXT: {}, 
2186    } 
2187   
2188  # readability shortcuts 
2189  _LV_DEFAULTS = DISK_LD_DEFAULTS[LD_LV] 
2190  _DRBD_DEFAULTS = DISK_LD_DEFAULTS[LD_DRBD8] 
2191   
2192  DISK_DT_DEFAULTS = { 
2193    DT_PLAIN: { 
2194      LV_STRIPES: DISK_LD_DEFAULTS[LD_LV][LDP_STRIPES], 
2195      }, 
2196    DT_DRBD8: { 
2197      DRBD_RESYNC_RATE: _DRBD_DEFAULTS[LDP_RESYNC_RATE], 
2198      DRBD_DATA_STRIPES: _LV_DEFAULTS[LDP_STRIPES], 
2199      DRBD_META_STRIPES: _LV_DEFAULTS[LDP_STRIPES], 
2200      DRBD_DISK_BARRIERS: _DRBD_DEFAULTS[LDP_BARRIERS], 
2201      DRBD_META_BARRIERS: _DRBD_DEFAULTS[LDP_NO_META_FLUSH], 
2202      DRBD_DEFAULT_METAVG: _DRBD_DEFAULTS[LDP_DEFAULT_METAVG], 
2203      DRBD_DISK_CUSTOM: _DRBD_DEFAULTS[LDP_DISK_CUSTOM], 
2204      DRBD_NET_CUSTOM: _DRBD_DEFAULTS[LDP_NET_CUSTOM], 
2205      DRBD_DYNAMIC_RESYNC: _DRBD_DEFAULTS[LDP_DYNAMIC_RESYNC], 
2206      DRBD_PLAN_AHEAD: _DRBD_DEFAULTS[LDP_PLAN_AHEAD], 
2207      DRBD_FILL_TARGET: _DRBD_DEFAULTS[LDP_FILL_TARGET], 
2208      DRBD_DELAY_TARGET: _DRBD_DEFAULTS[LDP_DELAY_TARGET], 
2209      DRBD_MAX_RATE: _DRBD_DEFAULTS[LDP_MAX_RATE], 
2210      DRBD_MIN_RATE: _DRBD_DEFAULTS[LDP_MIN_RATE], 
2211      }, 
2212    DT_DISKLESS: {}, 
2213    DT_FILE: {}, 
2214    DT_SHARED_FILE: {}, 
2215    DT_BLOCK: {}, 
2216    DT_RBD: { 
2217      RBD_POOL: DISK_LD_DEFAULTS[LD_RBD][LDP_POOL] 
2218      }, 
2219    DT_EXT: {}, 
2220    } 
2221   
2222  # we don't want to export the shortcuts 
2223  del _LV_DEFAULTS, _DRBD_DEFAULTS 
2224   
2225  NICC_DEFAULTS = { 
2226    NIC_MODE: NIC_MODE_BRIDGED, 
2227    NIC_LINK: DEFAULT_BRIDGE, 
2228    } 
2229   
2230  # All of the following values are quite arbitrarily - there are no 
2231  # "good" defaults, these must be customised per-site 
2232  ISPECS_MINMAX_DEFAULTS = { 
2233    ISPECS_MIN: { 
2234      ISPEC_MEM_SIZE: 128, 
2235      ISPEC_CPU_COUNT: 1, 
2236      ISPEC_DISK_COUNT: 1, 
2237      ISPEC_DISK_SIZE: 1024, 
2238      ISPEC_NIC_COUNT: 1, 
2239      ISPEC_SPINDLE_USE: 1, 
2240      }, 
2241    ISPECS_MAX: { 
2242      ISPEC_MEM_SIZE: 32768, 
2243      ISPEC_CPU_COUNT: 8, 
2244      ISPEC_DISK_COUNT: MAX_DISKS, 
2245      ISPEC_DISK_SIZE: 1024 * 1024, 
2246      ISPEC_NIC_COUNT: MAX_NICS, 
2247      ISPEC_SPINDLE_USE: 12, 
2248      }, 
2249    } 
2250  IPOLICY_DEFAULTS = { 
2251    ISPECS_MINMAX: [ISPECS_MINMAX_DEFAULTS], 
2252    ISPECS_STD: { 
2253      ISPEC_MEM_SIZE: 128, 
2254      ISPEC_CPU_COUNT: 1, 
2255      ISPEC_DISK_COUNT: 1, 
2256      ISPEC_DISK_SIZE: 1024, 
2257      ISPEC_NIC_COUNT: 1, 
2258      ISPEC_SPINDLE_USE: 1, 
2259      }, 
2260    IPOLICY_DTS: list(DISK_TEMPLATES), 
2261    IPOLICY_VCPU_RATIO: 4.0, 
2262    IPOLICY_SPINDLE_RATIO: 32.0, 
2263    } 
2264   
2265  MASTER_POOL_SIZE_DEFAULT = 10 
2266   
2267  # Exclusive storage: 
2268  # Error margin used to compare physical disks 
2269  PART_MARGIN = .01 
2270  # Space reserved when creating instance disks 
2271  PART_RESERVED = .02 
2272   
2273  CONFD_PROTOCOL_VERSION = 1 
2274   
2275  CONFD_REQ_PING = 0 
2276  CONFD_REQ_NODE_ROLE_BYNAME = 1 
2277  CONFD_REQ_NODE_PIP_BY_INSTANCE_IP = 2 
2278  CONFD_REQ_CLUSTER_MASTER = 3 
2279  CONFD_REQ_NODE_PIP_LIST = 4 
2280  CONFD_REQ_MC_PIP_LIST = 5 
2281  CONFD_REQ_INSTANCES_IPS_LIST = 6 
2282  CONFD_REQ_NODE_DRBD = 7 
2283  CONFD_REQ_NODE_INSTANCES = 8 
2284   
2285  # Confd request query fields. These are used to narrow down queries. 
2286  # These must be strings rather than integers, because json-encoding 
2287  # converts them to strings anyway, as they're used as dict-keys. 
2288  CONFD_REQQ_LINK = "0" 
2289  CONFD_REQQ_IP = "1" 
2290  CONFD_REQQ_IPLIST = "2" 
2291  CONFD_REQQ_FIELDS = "3" 
2292   
2293  CONFD_REQFIELD_NAME = "0" 
2294  CONFD_REQFIELD_IP = "1" 
2295  CONFD_REQFIELD_MNODE_PIP = "2" 
2296   
2297  CONFD_REQS = compat.UniqueFrozenset([ 
2298    CONFD_REQ_PING, 
2299    CONFD_REQ_NODE_ROLE_BYNAME, 
2300    CONFD_REQ_NODE_PIP_BY_INSTANCE_IP, 
2301    CONFD_REQ_CLUSTER_MASTER, 
2302    CONFD_REQ_NODE_PIP_LIST, 
2303    CONFD_REQ_MC_PIP_LIST, 
2304    CONFD_REQ_INSTANCES_IPS_LIST, 
2305    CONFD_REQ_NODE_DRBD, 
2306    ]) 
2307   
2308  CONFD_REPL_STATUS_OK = 0 
2309  CONFD_REPL_STATUS_ERROR = 1 
2310  CONFD_REPL_STATUS_NOTIMPLEMENTED = 2 
2311   
2312  CONFD_REPL_STATUSES = compat.UniqueFrozenset([ 
2313    CONFD_REPL_STATUS_OK, 
2314    CONFD_REPL_STATUS_ERROR, 
2315    CONFD_REPL_STATUS_NOTIMPLEMENTED, 
2316    ]) 
2317   
2318  (CONFD_NODE_ROLE_MASTER, 
2319   CONFD_NODE_ROLE_CANDIDATE, 
2320   CONFD_NODE_ROLE_OFFLINE, 
2321   CONFD_NODE_ROLE_DRAINED, 
2322   CONFD_NODE_ROLE_REGULAR, 
2323   ) = range(5) 
2324   
2325  # A few common errors for confd 
2326  CONFD_ERROR_UNKNOWN_ENTRY = 1 
2327  CONFD_ERROR_INTERNAL = 2 
2328  CONFD_ERROR_ARGUMENT = 3 
2329   
2330  # Each request is "salted" by the current timestamp. 
2331  # This constants decides how many seconds of skew to accept. 
2332  # TODO: make this a default and allow the value to be more configurable 
2333  CONFD_MAX_CLOCK_SKEW = 2 * NODE_MAX_CLOCK_SKEW 
2334   
2335  # When we haven't reloaded the config for more than this amount of 
2336  # seconds, we force a test to see if inotify is betraying us. Using a 
2337  # prime number to ensure we get less chance of 'same wakeup' with 
2338  # other processes. 
2339  CONFD_CONFIG_RELOAD_TIMEOUT = 17 
2340   
2341  # If we receive more than one update in this amount of microseconds, 
2342  # we move to polling every RATELIMIT seconds, rather than relying on 
2343  # inotify, to be able to serve more requests. 
2344  CONFD_CONFIG_RELOAD_RATELIMIT = 250000 
2345   
2346  # Magic number prepended to all confd queries. 
2347  # This allows us to distinguish different types of confd protocols and handle 
2348  # them. For example by changing this we can move the whole payload to be 
2349  # compressed, or move away from json. 
2350  CONFD_MAGIC_FOURCC = "plj0" 
2351   
2352  # By default a confd request is sent to the minimum between this number and all 
2353  # MCs. 6 was chosen because even in the case of a disastrous 50% response rate, 
2354  # we should have enough answers to be able to compare more than one. 
2355  CONFD_DEFAULT_REQ_COVERAGE = 6 
2356   
2357  # Timeout in seconds to expire pending query request in the confd client 
2358  # library. We don't actually expect any answer more than 10 seconds after we 
2359  # sent a request. 
2360  CONFD_CLIENT_EXPIRE_TIMEOUT = 10 
2361   
2362  # Maximum UDP datagram size. 
2363  # On IPv4: 64K - 20 (ip header size) - 8 (udp header size) = 65507 
2364  # On IPv6: 64K - 40 (ip6 header size) - 8 (udp header size) = 65487 
2365  #   (assuming we can't use jumbo frames) 
2366  # We just set this to 60K, which should be enough 
2367  MAX_UDP_DATA_SIZE = 61440 
2368   
2369  # User-id pool minimum/maximum acceptable user-ids. 
2370  UIDPOOL_UID_MIN = 0 
2371  UIDPOOL_UID_MAX = 2 ** 32 - 1 # Assuming 32 bit user-ids 
2372   
2373  # Name or path of the pgrep command 
2374  PGREP = "pgrep" 
2375   
2376  # Name of the node group that gets created at cluster init or upgrade 
2377  INITIAL_NODE_GROUP_NAME = "default" 
2378   
2379  # Possible values for NodeGroup.alloc_policy 
2380  ALLOC_POLICY_PREFERRED = "preferred" 
2381  ALLOC_POLICY_LAST_RESORT = "last_resort" 
2382  ALLOC_POLICY_UNALLOCABLE = "unallocable" 
2383  VALID_ALLOC_POLICIES = [ 
2384    ALLOC_POLICY_PREFERRED, 
2385    ALLOC_POLICY_LAST_RESORT, 
2386    ALLOC_POLICY_UNALLOCABLE, 
2387    ] 
2388   
2389  # Temporary external/shared storage parameters 
2390  BLOCKDEV_DRIVER_MANUAL = "manual" 
2391   
2392  # qemu-img path, required for ovfconverter 
2393  QEMUIMG_PATH = _autoconf.QEMUIMG_PATH 
2394   
2395  # Whether htools was enabled at compilation time 
2396  HTOOLS = _autoconf.HTOOLS 
2397  # The hail iallocator 
2398  IALLOC_HAIL = "hail" 
2399   
2400  # Fake opcodes for functions that have hooks attached to them via 
2401  # backend.RunLocalHooks 
2402  FAKE_OP_MASTER_TURNUP = "OP_CLUSTER_IP_TURNUP" 
2403  FAKE_OP_MASTER_TURNDOWN = "OP_CLUSTER_IP_TURNDOWN" 
2404   
2405  # SSH key types 
2406  SSHK_RSA = "rsa" 
2407  SSHK_DSA = "dsa" 
2408  SSHK_ALL = compat.UniqueFrozenset([SSHK_RSA, SSHK_DSA]) 
2409   
2410  # SSH authorized key types 
2411  SSHAK_RSA = "ssh-rsa" 
2412  SSHAK_DSS = "ssh-dss" 
2413  SSHAK_ALL = compat.UniqueFrozenset([SSHAK_RSA, SSHAK_DSS]) 
2414   
2415  # SSH setup 
2416  SSHS_CLUSTER_NAME = "cluster_name" 
2417  SSHS_SSH_HOST_KEY = "ssh_host_key" 
2418  SSHS_SSH_ROOT_KEY = "ssh_root_key" 
2419  SSHS_NODE_DAEMON_CERTIFICATE = "node_daemon_certificate" 
2420   
2421  #: Key files for SSH daemon 
2422  SSH_DAEMON_KEYFILES = { 
2423    SSHK_RSA: (pathutils.SSH_HOST_RSA_PRIV, pathutils.SSH_HOST_RSA_PUB), 
2424    SSHK_DSA: (pathutils.SSH_HOST_DSA_PRIV, pathutils.SSH_HOST_DSA_PUB), 
2425    } 
2426   
2427  # Node daemon setup 
2428  NDS_CLUSTER_NAME = "cluster_name" 
2429  NDS_NODE_DAEMON_CERTIFICATE = "node_daemon_certificate" 
2430  NDS_SSCONF = "ssconf" 
2431  NDS_START_NODE_DAEMON = "start_node_daemon" 
2432   
2433  # Path generating random UUID 
2434  RANDOM_UUID_FILE = "/proc/sys/kernel/random/uuid" 
2435   
2436  # Regex string for verifying a UUID 
2437  UUID_REGEX = "^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$" 
2438   
2439  # Auto-repair tag prefixes 
2440  AUTO_REPAIR_TAG_PREFIX = "ganeti:watcher:autorepair:" 
2441  AUTO_REPAIR_TAG_ENABLED = AUTO_REPAIR_TAG_PREFIX 
2442  AUTO_REPAIR_TAG_SUSPENDED = AUTO_REPAIR_TAG_ENABLED + "suspend:" 
2443  AUTO_REPAIR_TAG_PENDING = AUTO_REPAIR_TAG_PREFIX + "pending:" 
2444  AUTO_REPAIR_TAG_RESULT = AUTO_REPAIR_TAG_PREFIX + "result:" 
2445   
2446  # Auto-repair levels 
2447  AUTO_REPAIR_FIX_STORAGE = "fix-storage" 
2448  AUTO_REPAIR_MIGRATE = "migrate" 
2449  AUTO_REPAIR_FAILOVER = "failover" 
2450  AUTO_REPAIR_REINSTALL = "reinstall" 
2451  AUTO_REPAIR_ALL_TYPES = [ 
2452    AUTO_REPAIR_FIX_STORAGE, 
2453    AUTO_REPAIR_MIGRATE, 
2454    AUTO_REPAIR_FAILOVER, 
2455    AUTO_REPAIR_REINSTALL, 
2456  ] 
2457   
2458  # Auto-repair results 
2459  AUTO_REPAIR_SUCCESS = "success" 
2460  AUTO_REPAIR_FAILURE = "failure" 
2461  AUTO_REPAIR_ENOPERM = "enoperm" 
2462  AUTO_REPAIR_ALL_RESULTS = frozenset([ 
2463      AUTO_REPAIR_SUCCESS, 
2464      AUTO_REPAIR_FAILURE, 
2465      AUTO_REPAIR_ENOPERM, 
2466  ]) 
2467   
2468  # The version identifier for builtin data collectors 
2469  BUILTIN_DATA_COLLECTOR_VERSION = "B" 
2470   
2471  # The reason trail opcode parameter name 
2472  OPCODE_REASON = "reason" 
2473   
2474  # The source reasons for the execution of an OpCode 
2475  OPCODE_REASON_SRC_CLIENT = "gnt:client" 
2476  OPCODE_REASON_SRC_NODED = "gnt:daemon:noded" 
2477  OPCODE_REASON_SRC_OPCODE = "gnt:opcode" 
2478  OPCODE_REASON_SRC_RLIB2 = "gnt:library:rlib2" 
2479  OPCODE_REASON_SRC_USER = "gnt:user" 
2480   
2481  OPCODE_REASON_SOURCES = compat.UniqueFrozenset([ 
2482    OPCODE_REASON_SRC_CLIENT, 
2483    OPCODE_REASON_SRC_NODED, 
2484    OPCODE_REASON_SRC_OPCODE, 
2485    OPCODE_REASON_SRC_RLIB2, 
2486    OPCODE_REASON_SRC_USER, 
2487    ]) 
2488   
2489  # Do not re-export imported modules 
2490  del re, _vcsversion, _autoconf, socket, pathutils, compat 
2491

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Ganeti
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