Trees       Indices       Help   
Ganeti
Package ganeti :: Module constants
[hide private]
[frames] | no frames]

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_CONFD = _autoconf.ENABLE_CONFD 
 149  ENABLE_MOND = _autoconf.ENABLE_MOND 
 150  ENABLE_SPLIT_QUERY = _autoconf.ENABLE_SPLIT_QUERY 
 151  ENABLE_RESTRICTED_COMMANDS = _autoconf.ENABLE_RESTRICTED_COMMANDS 
 152   
 153  # SSH constants 
 154  SSH = "ssh" 
 155  SCP = "scp" 
 156   
 157  NODED = "ganeti-noded" 
 158  CONFD = "ganeti-confd" 
 159  LUXID = "ganeti-luxid" 
 160  RAPI = "ganeti-rapi" 
 161  MASTERD = "ganeti-masterd" 
 162  MOND = "ganeti-mond" 
 163   
 164  DAEMONS = compat.UniqueFrozenset([ 
 165    NODED, 
 166    CONFD, 
 167    LUXID, 
 168    RAPI, 
 169    MASTERD, 
 170    MOND, 
 171    ]) 
 172   
 173  DAEMONS_PORTS = { 
 174    # daemon-name: ("proto", "default-port") 
 175    NODED: ("tcp", 1811), 
 176    CONFD: ("udp", 1814), 
 177    MOND: ("tcp", 1815), 
 178    RAPI: ("tcp", 5080), 
 179    SSH: ("tcp", 22), 
 180  } 
 181   
 182  DEFAULT_NODED_PORT = DAEMONS_PORTS[NODED][1] 
 183  DEFAULT_CONFD_PORT = DAEMONS_PORTS[CONFD][1] 
 184  DEFAULT_MOND_PORT = DAEMONS_PORTS[MOND][1] 
 185  DEFAULT_RAPI_PORT = DAEMONS_PORTS[RAPI][1] 
 186   
 187  FIRST_DRBD_PORT = 11000 
 188  LAST_DRBD_PORT = 14999 
 189   
 190  DAEMONS_LOGBASE = { 
 191    NODED: "node-daemon", 
 192    CONFD: "conf-daemon", 
 193    LUXID: "luxi-daemon", 
 194    RAPI: "rapi-daemon", 
 195    MASTERD: "master-daemon", 
 196    MOND: "monitoring-daemon", 
 197    } 
 198   
 199  DAEMONS_LOGFILES = \ 
 200      dict((daemon, pathutils.GetLogFilename(DAEMONS_LOGBASE[daemon])) 
 201           for daemon in DAEMONS_LOGBASE) 
 202   
 203  # Some daemons might require more than one logfile. 
 204  # Specifically, right now only the Haskell http library "snap", used by the 
 205  # monitoring daemon, requires multiple log files. 
 206   
 207  # These are the only valid reasons for having an extra logfile 
 208  EXTRA_LOGREASON_ACCESS = "access" 
 209  EXTRA_LOGREASON_ERROR = "error" 
 210   
 211  VALID_EXTRA_LOGREASONS = compat.UniqueFrozenset([ 
 212    EXTRA_LOGREASON_ACCESS, 
 213    EXTRA_LOGREASON_ERROR, 
 214    ]) 
 215   
 216  # These are the extra logfiles, grouped by daemon 
 217  DAEMONS_EXTRA_LOGBASE = { 
 218    MOND: { 
 219      EXTRA_LOGREASON_ACCESS: "monitoring-daemon-access", 
 220      EXTRA_LOGREASON_ERROR: "monitoring-daemon-error", 
 221      } 
 222    } 
 223   
 224  DAEMONS_EXTRA_LOGFILES = \ 
 225    dict((daemon, dict((extra, 
 226         pathutils.GetLogFilename(DAEMONS_EXTRA_LOGBASE[daemon][extra])) 
 227         for extra in DAEMONS_EXTRA_LOGBASE[daemon])) 
 228           for daemon in DAEMONS_EXTRA_LOGBASE) 
 229   
 230  DEV_CONSOLE = "/dev/console" 
 231   
 232  PROC_MOUNTS = "/proc/mounts" 
 233   
 234  # Local UniX Interface related constants 
 235  LUXI_EOM = chr(3) 
 236  LUXI_VERSION = CONFIG_VERSION 
 237  #: Environment variable for the luxi override socket 
 238  LUXI_OVERRIDE = "FORCE_LUXI_SOCKET" 
 239  LUXI_OVERRIDE_MASTER = "master" 
 240  LUXI_OVERRIDE_QUERY = "query" 
 241  LUXI_SOCKET_PERMS = 0660 
 242   
 243  # one of "no", "yes", "only" 
 244  SYSLOG_USAGE = _autoconf.SYSLOG_USAGE 
 245  SYSLOG_NO = "no" 
 246  SYSLOG_YES = "yes" 
 247  SYSLOG_ONLY = "only" 
 248  SYSLOG_SOCKET = "/dev/log" 
 249   
 250  EXPORT_CONF_FILE = "config.ini" 
 251   
 252  XEN_BOOTLOADER = _autoconf.XEN_BOOTLOADER 
 253  XEN_KERNEL = _autoconf.XEN_KERNEL 
 254  XEN_INITRD = _autoconf.XEN_INITRD 
 255  XEN_CMD_XM = "xm" 
 256  XEN_CMD_XL = "xl" 
 257   
 258  KNOWN_XEN_COMMANDS = compat.UniqueFrozenset([ 
 259    XEN_CMD_XM, 
 260    XEN_CMD_XL, 
 261    ]) 
 262   
 263  # When the Xen toolstack used is "xl", live migration requires the source host 
 264  # to connect to the target host via ssh (xl runs this command). We need to pass 
 265  # the command xl runs some extra info so that it can use Ganeti's key 
 266  # verification and not fail. Note that this string is incomplete: it must be 
 267  # filled with the cluster name before being used. 
 268  XL_SSH_CMD = ("ssh -l %s -oGlobalKnownHostsFile=%s" 
 269                " -oUserKnownHostsFile=/dev/null" 
 270                " -oCheckHostIp=no -oStrictHostKeyChecking=yes" 
 271                " -oHostKeyAlias=%%s") % (SSH_LOGIN_USER, 
 272                                          pathutils.SSH_KNOWN_HOSTS_FILE) 
 273   
 274  KVM_PATH = _autoconf.KVM_PATH 
 275  KVM_KERNEL = _autoconf.KVM_KERNEL 
 276  SOCAT_PATH = _autoconf.SOCAT_PATH 
 277  SOCAT_USE_ESCAPE = _autoconf.SOCAT_USE_ESCAPE 
 278  SOCAT_USE_COMPRESS = _autoconf.SOCAT_USE_COMPRESS 
 279  SOCAT_ESCAPE_CODE = "0x1d" 
 280   
 281  #: Console as SSH command 
 282  CONS_SSH = "ssh" 
 283   
 284  #: Console as VNC server 
 285  CONS_VNC = "vnc" 
 286   
 287  #: Console as SPICE server 
 288  CONS_SPICE = "spice" 
 289   
 290  #: Display a message for console access 
 291  CONS_MESSAGE = "msg" 
 292   
 293  #: All console types 
 294  CONS_ALL = compat.UniqueFrozenset([ 
 295    CONS_SSH, 
 296    CONS_VNC, 
 297    CONS_SPICE, 
 298    CONS_MESSAGE, 
 299    ]) 
 300   
 301  # For RSA keys more bits are better, but they also make operations more 
 302  # expensive. NIST SP 800-131 recommends a minimum of 2048 bits from the year 
 303  # 2010 on. 
 304  RSA_KEY_BITS = 2048 
 305   
 306  # Ciphers allowed for SSL connections. For the format, see ciphers(1). A better 
 307  # way to disable ciphers would be to use the exclamation mark (!), but socat 
 308  # versions below 1.5 can't parse exclamation marks in options properly. When 
 309  # modifying the ciphers, ensure not to accidentially add something after it's 
 310  # been removed. Use the "openssl" utility to check the allowed ciphers, e.g. 
 311  # "openssl ciphers -v HIGH:-DES". 
 312  OPENSSL_CIPHERS = "HIGH:-DES:-3DES:-EXPORT:-ADH" 
 313   
 314  # Digest used to sign certificates ("openssl x509" uses SHA1 by default) 
 315  X509_CERT_SIGN_DIGEST = "SHA1" 
 316   
 317  # Default validity of certificates in days 
 318  X509_CERT_DEFAULT_VALIDITY = 365 * 5 
 319   
 320  # commonName (CN) used in certificates 
 321  X509_CERT_CN = "ganeti.example.com" 
 322   
 323  X509_CERT_SIGNATURE_HEADER = "X-Ganeti-Signature" 
 324   
 325  # Import/export daemon mode 
 326  IEM_IMPORT = "import" 
 327  IEM_EXPORT = "export" 
 328   
 329  # Import/export transport compression 
 330  IEC_NONE = "none" 
 331  IEC_GZIP = "gzip" 
 332  IEC_ALL = compat.UniqueFrozenset([ 
 333    IEC_NONE, 
 334    IEC_GZIP, 
 335    ]) 
 336   
 337  IE_CUSTOM_SIZE = "fd" 
 338   
 339  IE_MAGIC_RE = re.compile(r"^[-_.a-zA-Z0-9]{5,100}$") 
 340   
 341  # Import/export I/O 
 342  # Direct file I/O, equivalent to a shell's I/O redirection using '<' or '>' 
 343  IEIO_FILE = "file" 
 344  # Raw block device I/O using "dd" 
 345  IEIO_RAW_DISK = "raw" 
 346  # OS definition import/export script 
 347  IEIO_SCRIPT = "script" 
 348   
 349  VALUE_DEFAULT = "default" 
 350  VALUE_AUTO = "auto" 
 351  VALUE_GENERATE = "generate" 
 352  VALUE_NONE = "none" 
 353  VALUE_TRUE = "true" 
 354  VALUE_FALSE = "false" 
 355   
 356  # External script validation mask 
 357  EXT_PLUGIN_MASK = re.compile("^[a-zA-Z0-9_-]+$") 
 358   
 359  # hooks-related constants 
 360  HOOKS_PHASE_PRE = "pre" 
 361  HOOKS_PHASE_POST = "post" 
 362  HOOKS_NAME_CFGUPDATE = "config-update" 
 363  HOOKS_NAME_WATCHER = "watcher" 
 364  HOOKS_VERSION = 2 
 365  HOOKS_PATH = "/sbin:/bin:/usr/sbin:/usr/bin" 
 366   
 367  # hooks subject type (what object type does the LU deal with) 
 368  HTYPE_CLUSTER = "CLUSTER" 
 369  HTYPE_NODE = "NODE" 
 370  HTYPE_GROUP = "GROUP" 
 371  HTYPE_INSTANCE = "INSTANCE" 
 372  HTYPE_NETWORK = "NETWORK" 
 373   
 374  HKR_SKIP = 0 
 375  HKR_FAIL = 1 
 376  HKR_SUCCESS = 2 
 377   
 378  # Storage types 
 379  ST_BLOCK = "blockdev" 
 380  ST_DISKLESS = "diskless" 
 381  ST_EXT = "ext" 
 382  ST_FILE = "file" 
 383  ST_LVM_PV = "lvm-pv" 
 384  ST_LVM_VG = "lvm-vg" 
 385  ST_RADOS = "rados" 
 386   
 387  STORAGE_TYPES = compat.UniqueFrozenset([ 
 388    ST_BLOCK, 
 389    ST_DISKLESS, 
 390    ST_EXT, 
 391    ST_FILE, 
 392    ST_LVM_PV, 
 393    ST_LVM_VG, 
 394    ST_RADOS, 
 395    ]) 
 396   
 397  # the set of storage types for which storage reporting is available 
 398  # FIXME: Remove this, once storage reporting is available for all types. 
 399  STS_REPORT = compat.UniqueFrozenset([ST_FILE, ST_LVM_PV, ST_LVM_VG]) 
 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  LDS_NAMES = { 
 440    LDS_OKAY: "ok", 
 441    LDS_UNKNOWN: "unknown", 
 442    LDS_FAULTY: "faulty", 
 443  } 
 444   
 445  # disk template types 
 446  DT_BLOCK = "blockdev" 
 447  DT_DISKLESS = "diskless" 
 448  DT_DRBD8 = "drbd" 
 449  DT_EXT = "ext" 
 450  DT_FILE = "file" 
 451  DT_PLAIN = "plain" 
 452  DT_RBD = "rbd" 
 453  DT_SHARED_FILE = "sharedfile" 
 454   
 455  # This is used to order determine the default disk template when the list 
 456  # of enabled disk templates is inferred from the current state of the cluster. 
 457  # This only happens on an upgrade from a version of Ganeti that did not 
 458  # support the 'enabled_disk_templates' so far. 
 459  DISK_TEMPLATE_PREFERENCE = [ 
 460    DT_BLOCK, 
 461    DT_DISKLESS, 
 462    DT_DRBD8, 
 463    DT_EXT, 
 464    DT_FILE, 
 465    DT_PLAIN, 
 466    DT_RBD, 
 467    DT_SHARED_FILE, 
 468    ] 
 469   
 470  DISK_TEMPLATES = compat.UniqueFrozenset([ 
 471    DT_DISKLESS, 
 472    DT_PLAIN, 
 473    DT_DRBD8, 
 474    DT_FILE, 
 475    DT_SHARED_FILE, 
 476    DT_BLOCK, 
 477    DT_RBD, 
 478    DT_EXT 
 479    ]) 
 480   
 481  # disk templates that are enabled by default 
 482  DEFAULT_ENABLED_DISK_TEMPLATES = [ 
 483    DT_DRBD8, 
 484    DT_PLAIN, 
 485    ] 
 486   
 487  # mapping of disk templates to storage types 
 488  MAP_DISK_TEMPLATE_STORAGE_TYPE = { 
 489    DT_BLOCK: ST_BLOCK, 
 490    DT_DISKLESS: ST_DISKLESS, 
 491    DT_DRBD8: ST_LVM_VG, 
 492    DT_EXT: ST_EXT, 
 493    DT_FILE: ST_FILE, 
 494    DT_PLAIN: ST_LVM_VG, 
 495    DT_RBD: ST_RADOS, 
 496    DT_SHARED_FILE: ST_FILE, 
 497    } 
 498   
 499  # the set of network-mirrored disk templates 
 500  DTS_INT_MIRROR = compat.UniqueFrozenset([DT_DRBD8]) 
 501   
 502  # the set of externally-mirrored disk templates (e.g. SAN, NAS) 
 503  DTS_EXT_MIRROR = compat.UniqueFrozenset([ 
 504    DT_DISKLESS, # 'trivially' externally mirrored 
 505    DT_SHARED_FILE, 
 506    DT_BLOCK, 
 507    DT_RBD, 
 508    DT_EXT, 
 509    ]) 
 510   
 511  # the set of non-lvm-based disk templates 
 512  DTS_NOT_LVM = compat.UniqueFrozenset([ 
 513    DT_DISKLESS, 
 514    DT_FILE, 
 515    DT_SHARED_FILE, 
 516    DT_BLOCK, 
 517    DT_RBD, 
 518    DT_EXT, 
 519    ]) 
 520   
 521  # the set of disk templates which can be grown 
 522  DTS_GROWABLE = compat.UniqueFrozenset([ 
 523    DT_PLAIN, 
 524    DT_DRBD8, 
 525    DT_FILE, 
 526    DT_SHARED_FILE, 
 527    DT_RBD, 
 528    DT_EXT, 
 529    ]) 
 530   
 531  # the set of disk templates that allow adoption 
 532  DTS_MAY_ADOPT = compat.UniqueFrozenset([ 
 533    DT_PLAIN, 
 534    DT_BLOCK, 
 535    ]) 
 536   
 537  # the set of disk templates that *must* use adoption 
 538  DTS_MUST_ADOPT = compat.UniqueFrozenset([DT_BLOCK]) 
 539   
 540  # the set of disk templates that allow migrations 
 541  DTS_MIRRORED = frozenset.union(DTS_INT_MIRROR, DTS_EXT_MIRROR) 
 542   
 543  # the set of file based disk templates 
 544  DTS_FILEBASED = compat.UniqueFrozenset([ 
 545    DT_FILE, 
 546    DT_SHARED_FILE, 
 547    ]) 
 548   
 549  # the set of disk templates that can be moved by copying 
 550  # Note: a requirement is that they're not accessed externally or shared between 
 551  # nodes; in particular, sharedfile is not suitable. 
 552  DTS_COPYABLE = compat.UniqueFrozenset([ 
 553    DT_FILE, 
 554    DT_PLAIN, 
 555    ]) 
 556   
 557  # the set of disk templates that are supported by exclusive_storage 
 558  DTS_EXCL_STORAGE = compat.UniqueFrozenset([DT_PLAIN]) 
 559   
 560  # templates for which we don't perform checks on free space 
 561  DTS_NO_FREE_SPACE_CHECK = compat.UniqueFrozenset([ 
 562    DT_FILE, 
 563    DT_SHARED_FILE, 
 564    DT_RBD, 
 565    DT_EXT, 
 566    ]) 
 567   
 568  DTS_BLOCK = compat.UniqueFrozenset([ 
 569    DT_PLAIN, 
 570    DT_DRBD8, 
 571    DT_BLOCK, 
 572    DT_RBD, 
 573    DT_EXT, 
 574    ]) 
 575   
 576  # the set of drbd-like disk types 
 577  DTS_DRBD = compat.UniqueFrozenset([DT_DRBD8]) 
 578   
 579  # drbd constants 
 580  DRBD_HMAC_ALG = "md5" 
 581  DRBD_DEFAULT_NET_PROTOCOL = "C" 
 582  DRBD_MIGRATION_NET_PROTOCOL = "C" 
 583  DRBD_STATUS_FILE = "/proc/drbd" 
 584   
 585  #: Size of DRBD meta block device 
 586  DRBD_META_SIZE = 128 
 587   
 588  # drbd barrier types 
 589  DRBD_B_NONE = "n" 
 590  DRBD_B_DISK_BARRIERS = "b" 
 591  DRBD_B_DISK_DRAIN = "d" 
 592  DRBD_B_DISK_FLUSH = "f" 
 593   
 594  # Valid barrier combinations: "n" or any non-null subset of "bfd" 
 595  DRBD_VALID_BARRIER_OPT = compat.UniqueFrozenset([ 
 596    frozenset([DRBD_B_NONE]), 
 597    frozenset([DRBD_B_DISK_BARRIERS]), 
 598    frozenset([DRBD_B_DISK_DRAIN]), 
 599    frozenset([DRBD_B_DISK_FLUSH]), 
 600    frozenset([DRBD_B_DISK_DRAIN, DRBD_B_DISK_FLUSH]), 
 601    frozenset([DRBD_B_DISK_BARRIERS, DRBD_B_DISK_DRAIN]), 
 602    frozenset([DRBD_B_DISK_BARRIERS, DRBD_B_DISK_FLUSH]), 
 603    frozenset([DRBD_B_DISK_BARRIERS, DRBD_B_DISK_FLUSH, DRBD_B_DISK_DRAIN]), 
 604    ]) 
 605   
 606  # rbd tool command 
 607  RBD_CMD = "rbd" 
 608   
 609  # file backend driver 
 610  FD_LOOP = "loop" 
 611  FD_BLKTAP = "blktap" 
 612  FD_BLKTAP2 = "blktap2" 
 613  FD_DEFAULT = FD_LOOP 
 614   
 615  # disk access mode 
 616  DISK_RDONLY = "ro" 
 617  DISK_RDWR = "rw" 
 618  DISK_ACCESS_SET = compat.UniqueFrozenset([DISK_RDONLY, DISK_RDWR]) 
 619   
 620  # disk replacement mode 
 621  REPLACE_DISK_PRI = "replace_on_primary"    # replace disks on primary 
 622  REPLACE_DISK_SEC = "replace_on_secondary"  # replace disks on secondary 
 623  REPLACE_DISK_CHG = "replace_new_secondary" # change secondary node 
 624  REPLACE_DISK_AUTO = "replace_auto" 
 625  REPLACE_MODES = compat.UniqueFrozenset([ 
 626    REPLACE_DISK_PRI, 
 627    REPLACE_DISK_SEC, 
 628    REPLACE_DISK_CHG, 
 629    REPLACE_DISK_AUTO, 
 630    ]) 
 631   
 632  # Instance export mode 
 633  EXPORT_MODE_LOCAL = "local" 
 634  EXPORT_MODE_REMOTE = "remote" 
 635  EXPORT_MODES = compat.UniqueFrozenset([ 
 636    EXPORT_MODE_LOCAL, 
 637    EXPORT_MODE_REMOTE, 
 638    ]) 
 639   
 640  # instance creation modes 
 641  INSTANCE_CREATE = "create" 
 642  INSTANCE_IMPORT = "import" 
 643  INSTANCE_REMOTE_IMPORT = "remote-import" 
 644  INSTANCE_CREATE_MODES = compat.UniqueFrozenset([ 
 645    INSTANCE_CREATE, 
 646    INSTANCE_IMPORT, 
 647    INSTANCE_REMOTE_IMPORT, 
 648    ]) 
 649   
 650  # Remote import/export handshake message and version 
 651  RIE_VERSION = 0 
 652  RIE_HANDSHAKE = "Hi, I'm Ganeti" 
 653   
 654  # Remote import/export certificate validity in seconds 
 655  RIE_CERT_VALIDITY = 24 * 60 * 60 
 656   
 657  # Overall timeout for establishing connection 
 658  RIE_CONNECT_TIMEOUT = 180 
 659   
 660  # Export only: how long to wait per connection attempt (seconds) 
 661  RIE_CONNECT_ATTEMPT_TIMEOUT = 20 
 662   
 663  # Export only: number of attempts to connect 
 664  RIE_CONNECT_RETRIES = 10 
 665   
 666  #: Give child process up to 5 seconds to exit after sending a signal 
 667  CHILD_LINGER_TIMEOUT = 5.0 
 668   
 669  FILE_DRIVER = compat.UniqueFrozenset([FD_LOOP, FD_BLKTAP, FD_BLKTAP2]) 
 670   
 671  # import/export config options 
 672  INISECT_EXP = "export" 
 673  INISECT_INS = "instance" 
 674  INISECT_HYP = "hypervisor" 
 675  INISECT_BEP = "backend" 
 676  INISECT_OSP = "os" 
 677   
 678  # dynamic device modification 
 679  DDM_ADD = "add" 
 680  DDM_MODIFY = "modify" 
 681  DDM_REMOVE = "remove" 
 682  DDMS_VALUES = compat.UniqueFrozenset([DDM_ADD, DDM_REMOVE]) 
 683  DDMS_VALUES_WITH_MODIFY = (DDMS_VALUES | frozenset([ 
 684    DDM_MODIFY, 
 685    ])) 
 686  # TODO: DDM_SWAP, DDM_MOVE? 
 687   
 688  # common exit codes 
 689  EXIT_SUCCESS = 0 
 690  EXIT_FAILURE = 1 
 691  EXIT_NOTCLUSTER = 5 
 692  EXIT_NOTMASTER = 11 
 693  EXIT_NODESETUP_ERROR = 12 
 694  EXIT_CONFIRMATION = 13 # need user confirmation 
 695   
 696  #: Exit code for query operations with unknown fields 
 697  EXIT_UNKNOWN_FIELD = 14 
 698   
 699  # tags 
 700  TAG_CLUSTER = "cluster" 
 701  TAG_NODEGROUP = "nodegroup" 
 702  TAG_NODE = "node" 
 703  TAG_INSTANCE = "instance" 
 704  TAG_NETWORK = "network" 
 705  VALID_TAG_TYPES = compat.UniqueFrozenset([ 
 706    TAG_CLUSTER, 
 707    TAG_NODEGROUP, 
 708    TAG_NODE, 
 709    TAG_INSTANCE, 
 710    TAG_NETWORK, 
 711    ]) 
 712  MAX_TAG_LEN = 128 
 713  MAX_TAGS_PER_OBJ = 4096 
 714   
 715  # others 
 716  DEFAULT_BRIDGE = "xen-br0" 
 717  CLASSIC_DRBD_SYNC_SPEED = 60 * 1024  # 60 MiB, expressed in KiB 
 718  IP4_ADDRESS_LOCALHOST = "127.0.0.1" 
 719  IP4_ADDRESS_ANY = "0.0.0.0" 
 720  IP6_ADDRESS_LOCALHOST = "::1" 
 721  IP6_ADDRESS_ANY = "::" 
 722  IP4_VERSION = 4 
 723  IP6_VERSION = 6 
 724  VALID_IP_VERSIONS = compat.UniqueFrozenset([IP4_VERSION, IP6_VERSION]) 
 725  # for export to htools 
 726  IP4_FAMILY = socket.AF_INET 
 727  IP6_FAMILY = socket.AF_INET6 
 728   
 729  TCP_PING_TIMEOUT = 10 
 730  DEFAULT_VG = "xenvg" 
 731  DEFAULT_DRBD_HELPER = "/bin/true" 
 732  MIN_VG_SIZE = 20480 
 733  DEFAULT_MAC_PREFIX = "aa:00:00" 
 734  # default maximum instance wait time, in seconds. 
 735  DEFAULT_SHUTDOWN_TIMEOUT = 120 
 736  NODE_MAX_CLOCK_SKEW = 150 
 737  # Time for an intra-cluster disk transfer to wait for a connection 
 738  DISK_TRANSFER_CONNECT_TIMEOUT = 60 
 739  # Disk index separator 
 740  DISK_SEPARATOR = _autoconf.DISK_SEPARATOR 
 741  IP_COMMAND_PATH = _autoconf.IP_PATH 
 742   
 743  #: Key for job IDs in opcode result 
 744  JOB_IDS_KEY = "jobs" 
 745   
 746  # runparts results 
 747  (RUNPARTS_SKIP, 
 748   RUNPARTS_RUN, 
 749   RUNPARTS_ERR) = range(3) 
 750   
 751  RUNPARTS_STATUS = compat.UniqueFrozenset([ 
 752    RUNPARTS_SKIP, 
 753    RUNPARTS_RUN, 
 754    RUNPARTS_ERR, 
 755    ]) 
 756   
 757  # RPC constants 
 758  (RPC_ENCODING_NONE, 
 759   RPC_ENCODING_ZLIB_BASE64) = range(2) 
 760   
 761  # Various time constants for the timeout table 
 762  RPC_TMO_URGENT = 60 # one minute 
 763  RPC_TMO_FAST = 5 * 60 # five minutes 
 764  RPC_TMO_NORMAL = 15 * 60 # 15 minutes 
 765  RPC_TMO_SLOW = 3600 # one hour 
 766  RPC_TMO_4HRS = 4 * 3600 
 767  RPC_TMO_1DAY = 86400 
 768   
 769  # Timeout for connecting to nodes (seconds) 
 770  RPC_CONNECT_TIMEOUT = 5 
 771   
 772  # os related constants 
 773  OS_SCRIPT_CREATE = "create" 
 774  OS_SCRIPT_IMPORT = "import" 
 775  OS_SCRIPT_EXPORT = "export" 
 776  OS_SCRIPT_RENAME = "rename" 
 777  OS_SCRIPT_VERIFY = "verify" 
 778  OS_SCRIPTS = compat.UniqueFrozenset([ 
 779    OS_SCRIPT_CREATE, 
 780    OS_SCRIPT_IMPORT, 
 781    OS_SCRIPT_EXPORT, 
 782    OS_SCRIPT_RENAME, 
 783    OS_SCRIPT_VERIFY, 
 784    ]) 
 785   
 786  OS_API_FILE = "ganeti_api_version" 
 787  OS_VARIANTS_FILE = "variants.list" 
 788  OS_PARAMETERS_FILE = "parameters.list" 
 789   
 790  OS_VALIDATE_PARAMETERS = "parameters" 
 791  OS_VALIDATE_CALLS = compat.UniqueFrozenset([OS_VALIDATE_PARAMETERS]) 
 792   
 793  # External Storage (ES) related constants 
 794  ES_ACTION_CREATE = "create" 
 795  ES_ACTION_REMOVE = "remove" 
 796  ES_ACTION_GROW = "grow" 
 797  ES_ACTION_ATTACH = "attach" 
 798  ES_ACTION_DETACH = "detach" 
 799  ES_ACTION_SETINFO = "setinfo" 
 800  ES_ACTION_VERIFY = "verify" 
 801   
 802  ES_SCRIPT_CREATE = ES_ACTION_CREATE 
 803  ES_SCRIPT_REMOVE = ES_ACTION_REMOVE 
 804  ES_SCRIPT_GROW = ES_ACTION_GROW 
 805  ES_SCRIPT_ATTACH = ES_ACTION_ATTACH 
 806  ES_SCRIPT_DETACH = ES_ACTION_DETACH 
 807  ES_SCRIPT_SETINFO = ES_ACTION_SETINFO 
 808  ES_SCRIPT_VERIFY = ES_ACTION_VERIFY 
 809  ES_SCRIPTS = frozenset([ 
 810    ES_SCRIPT_CREATE, 
 811    ES_SCRIPT_REMOVE, 
 812    ES_SCRIPT_GROW, 
 813    ES_SCRIPT_ATTACH, 
 814    ES_SCRIPT_DETACH, 
 815    ES_SCRIPT_SETINFO, 
 816    ES_SCRIPT_VERIFY 
 817    ]) 
 818   
 819  ES_PARAMETERS_FILE = "parameters.list" 
 820   
 821  # reboot types 
 822  INSTANCE_REBOOT_SOFT = "soft" 
 823  INSTANCE_REBOOT_HARD = "hard" 
 824  INSTANCE_REBOOT_FULL = "full" 
 825   
 826  REBOOT_TYPES = compat.UniqueFrozenset([ 
 827    INSTANCE_REBOOT_SOFT, 
 828    INSTANCE_REBOOT_HARD, 
 829    INSTANCE_REBOOT_FULL, 
 830    ]) 
 831   
 832  # instance reboot behaviors 
 833  INSTANCE_REBOOT_ALLOWED = "reboot" 
 834  INSTANCE_REBOOT_EXIT = "exit" 
 835   
 836  REBOOT_BEHAVIORS = compat.UniqueFrozenset([ 
 837    INSTANCE_REBOOT_ALLOWED, 
 838    INSTANCE_REBOOT_EXIT, 
 839    ]) 
 840   
 841  VTYPE_STRING = "string" 
 842  VTYPE_MAYBE_STRING = "maybe-string" 
 843  VTYPE_BOOL = "bool" 
 844  VTYPE_SIZE = "size" # size, in MiBs 
 845  VTYPE_INT = "int" 
 846  ENFORCEABLE_TYPES = compat.UniqueFrozenset([ 
 847    VTYPE_STRING, 
 848    VTYPE_MAYBE_STRING, 
 849    VTYPE_BOOL, 
 850    VTYPE_SIZE, 
 851    VTYPE_INT, 
 852    ]) 
 853   
 854  # Constant representing that the user does not specify any IP version 
 855  IFACE_NO_IP_VERSION_SPECIFIED = 0 
 856   
 857  VALID_SERIAL_SPEEDS = compat.UniqueFrozenset([ 
 858    75, 
 859    110, 
 860    300, 
 861    600, 
 862    1200, 
 863    1800, 
 864    2400, 
 865    4800, 
 866    9600, 
 867    14400, 
 868    19200, 
 869    28800, 
 870    38400, 
 871    57600, 
 872    115200, 
 873    230400, 
 874    345600, 
 875    460800, 
 876    ]) 
 877   
 878  # HV parameter names (global namespace) 
 879  HV_BOOT_ORDER = "boot_order" 
 880  HV_CDROM_IMAGE_PATH = "cdrom_image_path" 
 881  HV_KVM_CDROM2_IMAGE_PATH = "cdrom2_image_path" 
 882  HV_KVM_FLOPPY_IMAGE_PATH = "floppy_image_path" 
 883  HV_NIC_TYPE = "nic_type" 
 884  HV_DISK_TYPE = "disk_type" 
 885  HV_KVM_CDROM_DISK_TYPE = "cdrom_disk_type" 
 886  HV_VNC_BIND_ADDRESS = "vnc_bind_address" 
 887  HV_VNC_PASSWORD_FILE = "vnc_password_file" 
 888  HV_VNC_TLS = "vnc_tls" 
 889  HV_VNC_X509 = "vnc_x509_path" 
 890  HV_VNC_X509_VERIFY = "vnc_x509_verify" 
 891  HV_KVM_SPICE_BIND = "spice_bind" 
 892  HV_KVM_SPICE_IP_VERSION = "spice_ip_version" 
 893  HV_KVM_SPICE_PASSWORD_FILE = "spice_password_file" 
 894  HV_KVM_SPICE_LOSSLESS_IMG_COMPR = "spice_image_compression" 
 895  HV_KVM_SPICE_JPEG_IMG_COMPR = "spice_jpeg_wan_compression" 
 896  HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR = "spice_zlib_glz_wan_compression" 
 897  HV_KVM_SPICE_STREAMING_VIDEO_DETECTION = "spice_streaming_video" 
 898  HV_KVM_SPICE_AUDIO_COMPR = "spice_playback_compression" 
 899  HV_KVM_SPICE_USE_TLS = "spice_use_tls" 
 900  HV_KVM_SPICE_TLS_CIPHERS = "spice_tls_ciphers" 
 901  HV_KVM_SPICE_USE_VDAGENT = "spice_use_vdagent" 
 902  HV_ACPI = "acpi" 
 903  HV_PAE = "pae" 
 904  HV_USE_BOOTLOADER = "use_bootloader" 
 905  HV_BOOTLOADER_ARGS = "bootloader_args" 
 906  HV_BOOTLOADER_PATH = "bootloader_path" 
 907  HV_KERNEL_ARGS = "kernel_args" 
 908  HV_KERNEL_PATH = "kernel_path" 
 909  HV_INITRD_PATH = "initrd_path" 
 910  HV_ROOT_PATH = "root_path" 
 911  HV_SERIAL_CONSOLE = "serial_console" 
 912  HV_SERIAL_SPEED = "serial_speed" 
 913  HV_USB_MOUSE = "usb_mouse" 
 914  HV_KEYMAP = "keymap" 
 915  HV_DEVICE_MODEL = "device_model" 
 916  HV_INIT_SCRIPT = "init_script" 
 917  HV_MIGRATION_PORT = "migration_port" 
 918  HV_MIGRATION_BANDWIDTH = "migration_bandwidth" 
 919  HV_MIGRATION_DOWNTIME = "migration_downtime" 
 920  HV_MIGRATION_MODE = "migration_mode" 
 921  HV_USE_LOCALTIME = "use_localtime" 
 922  HV_DISK_CACHE = "disk_cache" 
 923  HV_SECURITY_MODEL = "security_model" 
 924  HV_SECURITY_DOMAIN = "security_domain" 
 925  HV_KVM_FLAG = "kvm_flag" 
 926  HV_VHOST_NET = "vhost_net" 
 927  HV_KVM_USE_CHROOT = "use_chroot" 
 928  HV_CPU_MASK = "cpu_mask" 
 929  HV_MEM_PATH = "mem_path" 
 930  HV_PASSTHROUGH = "pci_pass" 
 931  HV_BLOCKDEV_PREFIX = "blockdev_prefix" 
 932  HV_REBOOT_BEHAVIOR = "reboot_behavior" 
 933  HV_CPU_TYPE = "cpu_type" 
 934  HV_CPU_CAP = "cpu_cap" 
 935  HV_CPU_WEIGHT = "cpu_weight" 
 936  HV_CPU_CORES = "cpu_cores" 
 937  HV_CPU_THREADS = "cpu_threads" 
 938  HV_CPU_SOCKETS = "cpu_sockets" 
 939  HV_SOUNDHW = "soundhw" 
 940  HV_USB_DEVICES = "usb_devices" 
 941  HV_VGA = "vga" 
 942  HV_KVM_EXTRA = "kvm_extra" 
 943  HV_KVM_MACHINE_VERSION = "machine_version" 
 944  HV_KVM_PATH = "kvm_path" 
 945  HV_VIF_TYPE = "vif_type" 
 946  HV_VIF_SCRIPT = "vif_script" 
 947  HV_XEN_CMD = "xen_cmd" 
 948  HV_VNET_HDR = "vnet_hdr" 
 949  HV_VIRIDIAN = "viridian" 
 950   
 951   
 952  HVS_PARAMETER_TYPES = { 
 953    HV_KVM_PATH: VTYPE_STRING, 
 954    HV_BOOT_ORDER: VTYPE_STRING, 
 955    HV_KVM_FLOPPY_IMAGE_PATH: VTYPE_STRING, 
 956    HV_CDROM_IMAGE_PATH: VTYPE_STRING, 
 957    HV_KVM_CDROM2_IMAGE_PATH: VTYPE_STRING, 
 958    HV_NIC_TYPE: VTYPE_STRING, 
 959    HV_DISK_TYPE: VTYPE_STRING, 
 960    HV_KVM_CDROM_DISK_TYPE: VTYPE_STRING, 
 961    HV_VNC_PASSWORD_FILE: VTYPE_STRING, 
 962    HV_VNC_BIND_ADDRESS: VTYPE_STRING, 
 963    HV_VNC_TLS: VTYPE_BOOL, 
 964    HV_VNC_X509: VTYPE_STRING, 
 965    HV_VNC_X509_VERIFY: VTYPE_BOOL, 
 966    HV_KVM_SPICE_BIND: VTYPE_STRING, 
 967    HV_KVM_SPICE_IP_VERSION: VTYPE_INT, 
 968    HV_KVM_SPICE_PASSWORD_FILE: VTYPE_STRING, 
 969    HV_KVM_SPICE_LOSSLESS_IMG_COMPR: VTYPE_STRING, 
 970    HV_KVM_SPICE_JPEG_IMG_COMPR: VTYPE_STRING, 
 971    HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR: VTYPE_STRING, 
 972    HV_KVM_SPICE_STREAMING_VIDEO_DETECTION: VTYPE_STRING, 
 973    HV_KVM_SPICE_AUDIO_COMPR: VTYPE_BOOL, 
 974    HV_KVM_SPICE_USE_TLS: VTYPE_BOOL, 
 975    HV_KVM_SPICE_TLS_CIPHERS: VTYPE_STRING, 
 976    HV_KVM_SPICE_USE_VDAGENT: VTYPE_BOOL, 
 977    HV_ACPI: VTYPE_BOOL, 
 978    HV_PAE: VTYPE_BOOL, 
 979    HV_USE_BOOTLOADER: VTYPE_BOOL, 
 980    HV_BOOTLOADER_PATH: VTYPE_STRING, 
 981    HV_BOOTLOADER_ARGS: VTYPE_STRING, 
 982    HV_KERNEL_PATH: VTYPE_STRING, 
 983    HV_KERNEL_ARGS: VTYPE_STRING, 
 984    HV_INITRD_PATH: VTYPE_STRING, 
 985    HV_ROOT_PATH: VTYPE_MAYBE_STRING, 
 986    HV_SERIAL_CONSOLE: VTYPE_BOOL, 
 987    HV_SERIAL_SPEED: VTYPE_INT, 
 988    HV_USB_MOUSE: VTYPE_STRING, 
 989    HV_KEYMAP: VTYPE_STRING, 
 990    HV_DEVICE_MODEL: VTYPE_STRING, 
 991    HV_INIT_SCRIPT: VTYPE_STRING, 
 992    HV_MIGRATION_PORT: VTYPE_INT, 
 993    HV_MIGRATION_BANDWIDTH: VTYPE_INT, 
 994    HV_MIGRATION_DOWNTIME: VTYPE_INT, 
 995    HV_MIGRATION_MODE: VTYPE_STRING, 
 996    HV_USE_LOCALTIME: VTYPE_BOOL, 
 997    HV_DISK_CACHE: VTYPE_STRING, 
 998    HV_SECURITY_MODEL: VTYPE_STRING, 
 999    HV_SECURITY_DOMAIN: VTYPE_STRING, 
1000    HV_KVM_FLAG: VTYPE_STRING, 
1001    HV_VHOST_NET: VTYPE_BOOL, 
1002    HV_KVM_USE_CHROOT: VTYPE_BOOL, 
1003    HV_CPU_MASK: VTYPE_STRING, 
1004    HV_MEM_PATH: VTYPE_STRING, 
1005    HV_PASSTHROUGH: VTYPE_STRING, 
1006    HV_BLOCKDEV_PREFIX: VTYPE_STRING, 
1007    HV_REBOOT_BEHAVIOR: VTYPE_STRING, 
1008    HV_CPU_TYPE: VTYPE_STRING, 
1009    HV_CPU_CAP: VTYPE_INT, 
1010    HV_CPU_WEIGHT: VTYPE_INT, 
1011    HV_CPU_CORES: VTYPE_INT, 
1012    HV_CPU_THREADS: VTYPE_INT, 
1013    HV_CPU_SOCKETS: VTYPE_INT, 
1014    HV_SOUNDHW: VTYPE_STRING, 
1015    HV_USB_DEVICES: VTYPE_STRING, 
1016    HV_VGA: VTYPE_STRING, 
1017    HV_KVM_EXTRA: VTYPE_STRING, 
1018    HV_KVM_MACHINE_VERSION: VTYPE_STRING, 
1019    HV_VIF_TYPE: VTYPE_STRING, 
1020    HV_VIF_SCRIPT: VTYPE_STRING, 
1021    HV_XEN_CMD: VTYPE_STRING, 
1022    HV_VNET_HDR: VTYPE_BOOL, 
1023    HV_VIRIDIAN: VTYPE_BOOL, 
1024    } 
1025   
1026  HVS_PARAMETERS = frozenset(HVS_PARAMETER_TYPES.keys()) 
1027   
1028  HVS_PARAMETER_TITLES = { 
1029    HV_ACPI: "ACPI", 
1030    HV_BOOT_ORDER: "Boot_order", 
1031    HV_CDROM_IMAGE_PATH: "CDROM_image_path", 
1032    HV_DISK_TYPE: "Disk_type", 
1033    HV_INITRD_PATH: "Initrd_path", 
1034    HV_KERNEL_PATH: "Kernel_path", 
1035    HV_NIC_TYPE: "NIC_type", 
1036    HV_PAE: "PAE", 
1037    HV_VNC_BIND_ADDRESS: "VNC_bind_address", 
1038    HV_PASSTHROUGH: "pci_pass", 
1039    HV_CPU_TYPE: "cpu_type", 
1040    } 
1041   
1042  # Migration statuses 
1043  HV_MIGRATION_COMPLETED = "completed" 
1044  HV_MIGRATION_ACTIVE = "active" 
1045  HV_MIGRATION_FAILED = "failed" 
1046  HV_MIGRATION_CANCELLED = "cancelled" 
1047   
1048  HV_MIGRATION_VALID_STATUSES = compat.UniqueFrozenset([ 
1049    HV_MIGRATION_COMPLETED, 
1050    HV_MIGRATION_ACTIVE, 
1051    HV_MIGRATION_FAILED, 
1052    HV_MIGRATION_CANCELLED, 
1053    ]) 
1054   
1055  HV_MIGRATION_FAILED_STATUSES = compat.UniqueFrozenset([ 
1056    HV_MIGRATION_FAILED, 
1057    HV_MIGRATION_CANCELLED, 
1058    ]) 
1059   
1060  # KVM-specific statuses 
1061  HV_KVM_MIGRATION_VALID_STATUSES = HV_MIGRATION_VALID_STATUSES 
1062   
1063  # Node info keys 
1064  HV_NODEINFO_KEY_VERSION = "hv_version" 
1065   
1066  # Hypervisor state 
1067  HVST_MEMORY_TOTAL = "mem_total" 
1068  HVST_MEMORY_NODE = "mem_node" 
1069  HVST_MEMORY_HV = "mem_hv" 
1070  HVST_CPU_TOTAL = "cpu_total" 
1071  HVST_CPU_NODE = "cpu_node" 
1072   
1073  HVST_DEFAULTS = { 
1074    HVST_MEMORY_TOTAL: 0, 
1075    HVST_MEMORY_NODE: 0, 
1076    HVST_MEMORY_HV: 0, 
1077    HVST_CPU_TOTAL: 1, 
1078    HVST_CPU_NODE: 1, 
1079    } 
1080   
1081  HVSTS_PARAMETER_TYPES = { 
1082    HVST_MEMORY_TOTAL: VTYPE_INT, 
1083    HVST_MEMORY_NODE: VTYPE_INT, 
1084    HVST_MEMORY_HV: VTYPE_INT, 
1085    HVST_CPU_TOTAL: VTYPE_INT, 
1086    HVST_CPU_NODE: VTYPE_INT, 
1087    } 
1088   
1089  HVSTS_PARAMETERS = frozenset(HVSTS_PARAMETER_TYPES.keys()) 
1090   
1091  # Disk state 
1092  DS_DISK_TOTAL = "disk_total" 
1093  DS_DISK_RESERVED = "disk_reserved" 
1094  DS_DISK_OVERHEAD = "disk_overhead" 
1095   
1096  DS_DEFAULTS = { 
1097    DS_DISK_TOTAL: 0, 
1098    DS_DISK_RESERVED: 0, 
1099    DS_DISK_OVERHEAD: 0, 
1100    } 
1101   
1102  DSS_PARAMETER_TYPES = { 
1103    DS_DISK_TOTAL: VTYPE_INT, 
1104    DS_DISK_RESERVED: VTYPE_INT, 
1105    DS_DISK_OVERHEAD: VTYPE_INT, 
1106    } 
1107   
1108  DSS_PARAMETERS = frozenset(DSS_PARAMETER_TYPES.keys()) 
1109  DS_VALID_TYPES = compat.UniqueFrozenset([DT_PLAIN]) 
1110   
1111  # Backend parameter names 
1112  BE_MEMORY = "memory" # deprecated and replaced by max and min mem 
1113  BE_MAXMEM = "maxmem" 
1114  BE_MINMEM = "minmem" 
1115  BE_VCPUS = "vcpus" 
1116  BE_AUTO_BALANCE = "auto_balance" 
1117  BE_ALWAYS_FAILOVER = "always_failover" 
1118  BE_SPINDLE_USE = "spindle_use" 
1119   
1120  BES_PARAMETER_TYPES = { 
1121    BE_MAXMEM: VTYPE_SIZE, 
1122    BE_MINMEM: VTYPE_SIZE, 
1123    BE_VCPUS: VTYPE_INT, 
1124    BE_AUTO_BALANCE: VTYPE_BOOL, 
1125    BE_ALWAYS_FAILOVER: VTYPE_BOOL, 
1126    BE_SPINDLE_USE: VTYPE_INT, 
1127    } 
1128   
1129  BES_PARAMETER_TITLES = { 
1130    BE_AUTO_BALANCE: "Auto_balance", 
1131    BE_MAXMEM: "ConfigMaxMem", 
1132    BE_MINMEM: "ConfigMinMem", 
1133    BE_VCPUS: "ConfigVCPUs", 
1134    } 
1135   
1136  BES_PARAMETER_COMPAT = { 
1137    BE_MEMORY: VTYPE_SIZE, 
1138    } 
1139  BES_PARAMETER_COMPAT.update(BES_PARAMETER_TYPES) 
1140   
1141  BES_PARAMETERS = frozenset(BES_PARAMETER_TYPES.keys()) 
1142   
1143  # instance specs 
1144  ISPEC_MEM_SIZE = "memory-size" 
1145  ISPEC_CPU_COUNT = "cpu-count" 
1146  ISPEC_DISK_COUNT = "disk-count" 
1147  ISPEC_DISK_SIZE = "disk-size" 
1148  ISPEC_NIC_COUNT = "nic-count" 
1149  ISPEC_SPINDLE_USE = "spindle-use" 
1150   
1151  ISPECS_PARAMETER_TYPES = { 
1152    ISPEC_MEM_SIZE: VTYPE_INT, 
1153    ISPEC_CPU_COUNT: VTYPE_INT, 
1154    ISPEC_DISK_COUNT: VTYPE_INT, 
1155    ISPEC_DISK_SIZE: VTYPE_INT, 
1156    ISPEC_NIC_COUNT: VTYPE_INT, 
1157    ISPEC_SPINDLE_USE: VTYPE_INT, 
1158    } 
1159   
1160  ISPECS_PARAMETERS = frozenset(ISPECS_PARAMETER_TYPES.keys()) 
1161   
1162  ISPECS_MINMAX = "minmax" 
1163  ISPECS_MIN = "min" 
1164  ISPECS_MAX = "max" 
1165  ISPECS_STD = "std" 
1166  IPOLICY_DTS = "disk-templates" 
1167  IPOLICY_VCPU_RATIO = "vcpu-ratio" 
1168  IPOLICY_SPINDLE_RATIO = "spindle-ratio" 
1169   
1170  ISPECS_MINMAX_KEYS = compat.UniqueFrozenset([ 
1171    ISPECS_MIN, 
1172    ISPECS_MAX, 
1173    ]) 
1174   
1175  IPOLICY_PARAMETERS = compat.UniqueFrozenset([ 
1176    IPOLICY_VCPU_RATIO, 
1177    IPOLICY_SPINDLE_RATIO, 
1178    ]) 
1179   
1180  IPOLICY_ALL_KEYS = (IPOLICY_PARAMETERS | 
1181                      frozenset([ISPECS_MINMAX, ISPECS_STD, IPOLICY_DTS])) 
1182   
1183  # Node parameter names 
1184  ND_OOB_PROGRAM = "oob_program" 
1185  ND_SPINDLE_COUNT = "spindle_count" 
1186  ND_EXCLUSIVE_STORAGE = "exclusive_storage" 
1187   
1188  NDS_PARAMETER_TYPES = { 
1189    ND_OOB_PROGRAM: VTYPE_STRING, 
1190    ND_SPINDLE_COUNT: VTYPE_INT, 
1191    ND_EXCLUSIVE_STORAGE: VTYPE_BOOL, 
1192    } 
1193   
1194  NDS_PARAMETERS = frozenset(NDS_PARAMETER_TYPES.keys()) 
1195   
1196  NDS_PARAMETER_TITLES = { 
1197    ND_OOB_PROGRAM: "OutOfBandProgram", 
1198    ND_SPINDLE_COUNT: "SpindleCount", 
1199    ND_EXCLUSIVE_STORAGE: "ExclusiveStorage", 
1200    } 
1201   
1202  # Logical Disks parameters 
1203  LDP_RESYNC_RATE = "resync-rate" 
1204  LDP_STRIPES = "stripes" 
1205  LDP_BARRIERS = "disabled-barriers" 
1206  LDP_NO_META_FLUSH = "disable-meta-flush" 
1207  LDP_DEFAULT_METAVG = "default-metavg" 
1208  LDP_DISK_CUSTOM = "disk-custom" 
1209  LDP_NET_CUSTOM = "net-custom" 
1210  LDP_PROTOCOL = "protocol" 
1211  LDP_DYNAMIC_RESYNC = "dynamic-resync" 
1212  LDP_PLAN_AHEAD = "c-plan-ahead" 
1213  LDP_FILL_TARGET = "c-fill-target" 
1214  LDP_DELAY_TARGET = "c-delay-target" 
1215  LDP_MAX_RATE = "c-max-rate" 
1216  LDP_MIN_RATE = "c-min-rate" 
1217  LDP_POOL = "pool" 
1218  DISK_LD_TYPES = { 
1219    LDP_RESYNC_RATE: VTYPE_INT, 
1220    LDP_STRIPES: VTYPE_INT, 
1221    LDP_BARRIERS: VTYPE_STRING, 
1222    LDP_NO_META_FLUSH: VTYPE_BOOL, 
1223    LDP_DEFAULT_METAVG: VTYPE_STRING, 
1224    LDP_DISK_CUSTOM: VTYPE_STRING, 
1225    LDP_NET_CUSTOM: VTYPE_STRING, 
1226    LDP_PROTOCOL: VTYPE_STRING, 
1227    LDP_DYNAMIC_RESYNC: VTYPE_BOOL, 
1228    LDP_PLAN_AHEAD: VTYPE_INT, 
1229    LDP_FILL_TARGET: VTYPE_INT, 
1230    LDP_DELAY_TARGET: VTYPE_INT, 
1231    LDP_MAX_RATE: VTYPE_INT, 
1232    LDP_MIN_RATE: VTYPE_INT, 
1233    LDP_POOL: VTYPE_STRING, 
1234    } 
1235  DISK_LD_PARAMETERS = frozenset(DISK_LD_TYPES.keys()) 
1236   
1237  # Disk template parameters (can be set/changed by the user via gnt-cluster and 
1238  # gnt-group) 
1239  DRBD_RESYNC_RATE = "resync-rate" 
1240  DRBD_DATA_STRIPES = "data-stripes" 
1241  DRBD_META_STRIPES = "meta-stripes" 
1242  DRBD_DISK_BARRIERS = "disk-barriers" 
1243  DRBD_META_BARRIERS = "meta-barriers" 
1244  DRBD_DEFAULT_METAVG = "metavg" 
1245  DRBD_DISK_CUSTOM = "disk-custom" 
1246  DRBD_NET_CUSTOM = "net-custom" 
1247  DRBD_PROTOCOL = "protocol" 
1248  DRBD_DYNAMIC_RESYNC = "dynamic-resync" 
1249  DRBD_PLAN_AHEAD = "c-plan-ahead" 
1250  DRBD_FILL_TARGET = "c-fill-target" 
1251  DRBD_DELAY_TARGET = "c-delay-target" 
1252  DRBD_MAX_RATE = "c-max-rate" 
1253  DRBD_MIN_RATE = "c-min-rate" 
1254  LV_STRIPES = "stripes" 
1255  RBD_POOL = "pool" 
1256  DISK_DT_TYPES = { 
1257    DRBD_RESYNC_RATE: VTYPE_INT, 
1258    DRBD_DATA_STRIPES: VTYPE_INT, 
1259    DRBD_META_STRIPES: VTYPE_INT, 
1260    DRBD_DISK_BARRIERS: VTYPE_STRING, 
1261    DRBD_META_BARRIERS: VTYPE_BOOL, 
1262    DRBD_DEFAULT_METAVG: VTYPE_STRING, 
1263    DRBD_DISK_CUSTOM: VTYPE_STRING, 
1264    DRBD_NET_CUSTOM: VTYPE_STRING, 
1265    DRBD_PROTOCOL: VTYPE_STRING, 
1266    DRBD_DYNAMIC_RESYNC: VTYPE_BOOL, 
1267    DRBD_PLAN_AHEAD: VTYPE_INT, 
1268    DRBD_FILL_TARGET: VTYPE_INT, 
1269    DRBD_DELAY_TARGET: VTYPE_INT, 
1270    DRBD_MAX_RATE: VTYPE_INT, 
1271    DRBD_MIN_RATE: VTYPE_INT, 
1272    LV_STRIPES: VTYPE_INT, 
1273    RBD_POOL: VTYPE_STRING, 
1274    } 
1275   
1276  DISK_DT_PARAMETERS = frozenset(DISK_DT_TYPES.keys()) 
1277   
1278  # OOB supported commands 
1279  OOB_POWER_ON = "power-on" 
1280  OOB_POWER_OFF = "power-off" 
1281  OOB_POWER_CYCLE = "power-cycle" 
1282  OOB_POWER_STATUS = "power-status" 
1283  OOB_HEALTH = "health" 
1284   
1285  OOB_COMMANDS = compat.UniqueFrozenset([ 
1286    OOB_POWER_ON, 
1287    OOB_POWER_OFF, 
1288    OOB_POWER_CYCLE, 
1289    OOB_POWER_STATUS, 
1290    OOB_HEALTH, 
1291    ]) 
1292   
1293  OOB_POWER_STATUS_POWERED = "powered" 
1294   
1295  OOB_TIMEOUT = 60 # 60 seconds 
1296  OOB_POWER_DELAY = 2.0 # 2 seconds 
1297   
1298  OOB_STATUS_OK = "OK" 
1299  OOB_STATUS_WARNING = "WARNING" 
1300  OOB_STATUS_CRITICAL = "CRITICAL" 
1301  OOB_STATUS_UNKNOWN = "UNKNOWN" 
1302   
1303  OOB_STATUSES = compat.UniqueFrozenset([ 
1304    OOB_STATUS_OK, 
1305    OOB_STATUS_WARNING, 
1306    OOB_STATUS_CRITICAL, 
1307    OOB_STATUS_UNKNOWN, 
1308    ]) 
1309   
1310  # Instance Parameters Profile 
1311  PP_DEFAULT = "default" 
1312   
1313  # NIC_* constants are used inside the ganeti config 
1314  NIC_MODE = "mode" 
1315  NIC_LINK = "link" 
1316   
1317  NIC_MODE_BRIDGED = "bridged" 
1318  NIC_MODE_ROUTED = "routed" 
1319  NIC_MODE_OVS = "openvswitch" 
1320  NIC_IP_POOL = "pool" 
1321   
1322  NIC_VALID_MODES = compat.UniqueFrozenset([ 
1323    NIC_MODE_BRIDGED, 
1324    NIC_MODE_ROUTED, 
1325    NIC_MODE_OVS, 
1326    ]) 
1327   
1328  RESERVE_ACTION = "reserve" 
1329  RELEASE_ACTION = "release" 
1330   
1331  NICS_PARAMETER_TYPES = { 
1332    NIC_MODE: VTYPE_STRING, 
1333    NIC_LINK: VTYPE_STRING, 
1334    } 
1335   
1336  NICS_PARAMETERS = frozenset(NICS_PARAMETER_TYPES.keys()) 
1337   
1338  # IDISK_* constants are used in opcodes, to create/change disks 
1339  IDISK_SIZE = "size" 
1340  IDISK_SPINDLES = "spindles" 
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_SPINDLES: VTYPE_INT, 
1350    IDISK_MODE: VTYPE_STRING, 
1351    IDISK_ADOPT: VTYPE_STRING, 
1352    IDISK_VG: VTYPE_STRING, 
1353    IDISK_METAVG: VTYPE_STRING, 
1354    IDISK_PROVIDER: VTYPE_STRING, 
1355    IDISK_NAME: VTYPE_MAYBE_STRING, 
1356    } 
1357  IDISK_PARAMS = frozenset(IDISK_PARAMS_TYPES.keys()) 
1358   
1359  MODIFIABLE_IDISK_PARAMS_TYPES = { 
1360    IDISK_MODE: VTYPE_STRING, 
1361    IDISK_NAME: VTYPE_STRING, 
1362    } 
1363  MODIFIABLE_IDISK_PARAMS = frozenset(MODIFIABLE_IDISK_PARAMS_TYPES.keys()) 
1364   
1365  # INIC_* constants are used in opcodes, to create/change nics 
1366  INIC_MAC = "mac" 
1367  INIC_IP = "ip" 
1368  INIC_MODE = "mode" 
1369  INIC_LINK = "link" 
1370  INIC_NETWORK = "network" 
1371  INIC_NAME = "name" 
1372  INIC_PARAMS_TYPES = { 
1373    INIC_IP: VTYPE_MAYBE_STRING, 
1374    INIC_LINK: VTYPE_STRING, 
1375    INIC_MAC: VTYPE_STRING, 
1376    INIC_MODE: VTYPE_STRING, 
1377    INIC_NETWORK: VTYPE_MAYBE_STRING, 
1378    INIC_NAME: VTYPE_MAYBE_STRING, 
1379    } 
1380  INIC_PARAMS = frozenset(INIC_PARAMS_TYPES.keys()) 
1381   
1382  # Hypervisor constants 
1383  HT_XEN_PVM = "xen-pvm" 
1384  HT_FAKE = "fake" 
1385  HT_XEN_HVM = "xen-hvm" 
1386  HT_KVM = "kvm" 
1387  HT_CHROOT = "chroot" 
1388  HT_LXC = "lxc" 
1389  HYPER_TYPES = compat.UniqueFrozenset([ 
1390    HT_XEN_PVM, 
1391    HT_FAKE, 
1392    HT_XEN_HVM, 
1393    HT_KVM, 
1394    HT_CHROOT, 
1395    HT_LXC, 
1396    ]) 
1397  HTS_REQ_PORT = compat.UniqueFrozenset([HT_XEN_HVM, HT_KVM]) 
1398   
1399  VNC_BASE_PORT = 5900 
1400  VNC_DEFAULT_BIND_ADDRESS = IP4_ADDRESS_ANY 
1401   
1402  # NIC types 
1403  HT_NIC_RTL8139 = "rtl8139" 
1404  HT_NIC_NE2K_PCI = "ne2k_pci" 
1405  HT_NIC_NE2K_ISA = "ne2k_isa" 
1406  HT_NIC_I82551 = "i82551" 
1407  HT_NIC_I85557B = "i82557b" 
1408  HT_NIC_I8259ER = "i82559er" 
1409  HT_NIC_PCNET = "pcnet" 
1410  HT_NIC_E1000 = "e1000" 
1411  HT_NIC_PARAVIRTUAL = HT_DISK_PARAVIRTUAL = "paravirtual" 
1412   
1413  HT_HVM_VALID_NIC_TYPES = compat.UniqueFrozenset([ 
1414    HT_NIC_RTL8139, 
1415    HT_NIC_NE2K_PCI, 
1416    HT_NIC_E1000, 
1417    HT_NIC_NE2K_ISA, 
1418    HT_NIC_PARAVIRTUAL, 
1419    ]) 
1420  HT_KVM_VALID_NIC_TYPES = compat.UniqueFrozenset([ 
1421    HT_NIC_RTL8139, 
1422    HT_NIC_NE2K_PCI, 
1423    HT_NIC_NE2K_ISA, 
1424    HT_NIC_I82551, 
1425    HT_NIC_I85557B, 
1426    HT_NIC_I8259ER, 
1427    HT_NIC_PCNET, 
1428    HT_NIC_E1000, 
1429    HT_NIC_PARAVIRTUAL, 
1430    ]) 
1431   
1432  # Vif types 
1433  # default vif type in xen-hvm 
1434  HT_HVM_VIF_IOEMU = "ioemu" 
1435  HT_HVM_VIF_VIF = "vif" 
1436  HT_HVM_VALID_VIF_TYPES = compat.UniqueFrozenset([ 
1437    HT_HVM_VIF_IOEMU, 
1438    HT_HVM_VIF_VIF, 
1439    ]) 
1440   
1441  # Disk types 
1442  HT_DISK_IOEMU = "ioemu" 
1443  HT_DISK_IDE = "ide" 
1444  HT_DISK_SCSI = "scsi" 
1445  HT_DISK_SD = "sd" 
1446  HT_DISK_MTD = "mtd" 
1447  HT_DISK_PFLASH = "pflash" 
1448   
1449  HT_CACHE_DEFAULT = "default" 
1450  HT_CACHE_NONE = "none" 
1451  HT_CACHE_WTHROUGH = "writethrough" 
1452  HT_CACHE_WBACK = "writeback" 
1453  HT_VALID_CACHE_TYPES = compat.UniqueFrozenset([ 
1454    HT_CACHE_DEFAULT, 
1455    HT_CACHE_NONE, 
1456    HT_CACHE_WTHROUGH, 
1457    HT_CACHE_WBACK, 
1458    ]) 
1459   
1460  HT_HVM_VALID_DISK_TYPES = compat.UniqueFrozenset([ 
1461    HT_DISK_PARAVIRTUAL, 
1462    HT_DISK_IOEMU, 
1463    ]) 
1464  HT_KVM_VALID_DISK_TYPES = compat.UniqueFrozenset([ 
1465    HT_DISK_PARAVIRTUAL, 
1466    HT_DISK_IDE, 
1467    HT_DISK_SCSI, 
1468    HT_DISK_SD, 
1469    HT_DISK_MTD, 
1470    HT_DISK_PFLASH, 
1471    ]) 
1472   
1473  # Mouse types: 
1474  HT_MOUSE_MOUSE = "mouse" 
1475  HT_MOUSE_TABLET = "tablet" 
1476   
1477  HT_KVM_VALID_MOUSE_TYPES = compat.UniqueFrozenset([ 
1478    HT_MOUSE_MOUSE, 
1479    HT_MOUSE_TABLET, 
1480    ]) 
1481   
1482  # Boot order 
1483  HT_BO_FLOPPY = "floppy" 
1484  HT_BO_CDROM = "cdrom" 
1485  HT_BO_DISK = "disk" 
1486  HT_BO_NETWORK = "network" 
1487   
1488  HT_KVM_VALID_BO_TYPES = compat.UniqueFrozenset([ 
1489    HT_BO_FLOPPY, 
1490    HT_BO_CDROM, 
1491    HT_BO_DISK, 
1492    HT_BO_NETWORK, 
1493    ]) 
1494   
1495  # SPICE lossless image compression options 
1496  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_GLZ = "auto_glz" 
1497  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_LZ = "auto_lz" 
1498  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_QUIC = "quic" 
1499  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_GLZ = "glz" 
1500  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_LZ = "lz" 
1501  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_OFF = "off" 
1502   
1503  HT_KVM_SPICE_VALID_LOSSLESS_IMG_COMPR_OPTIONS = compat.UniqueFrozenset([ 
1504    HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_GLZ, 
1505    HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_LZ, 
1506    HT_KVM_SPICE_LOSSLESS_IMG_COMPR_QUIC, 
1507    HT_KVM_SPICE_LOSSLESS_IMG_COMPR_GLZ, 
1508    HT_KVM_SPICE_LOSSLESS_IMG_COMPR_LZ, 
1509    HT_KVM_SPICE_LOSSLESS_IMG_COMPR_OFF, 
1510    ]) 
1511   
1512  # SPICE lossy image compression options (valid for both jpeg and zlib-glz) 
1513  HT_KVM_SPICE_LOSSY_IMG_COMPR_AUTO = "auto" 
1514  HT_KVM_SPICE_LOSSY_IMG_COMPR_NEVER = "never" 
1515  HT_KVM_SPICE_LOSSY_IMG_COMPR_ALWAYS = "always" 
1516   
1517  HT_KVM_SPICE_VALID_LOSSY_IMG_COMPR_OPTIONS = compat.UniqueFrozenset([ 
1518    HT_KVM_SPICE_LOSSY_IMG_COMPR_AUTO, 
1519    HT_KVM_SPICE_LOSSY_IMG_COMPR_NEVER, 
1520    HT_KVM_SPICE_LOSSY_IMG_COMPR_ALWAYS, 
1521    ]) 
1522   
1523  # SPICE video stream detection 
1524  HT_KVM_SPICE_VIDEO_STREAM_DETECTION_OFF = "off" 
1525  HT_KVM_SPICE_VIDEO_STREAM_DETECTION_ALL = "all" 
1526  HT_KVM_SPICE_VIDEO_STREAM_DETECTION_FILTER = "filter" 
1527   
1528  HT_KVM_SPICE_VALID_VIDEO_STREAM_DETECTION_OPTIONS = compat.UniqueFrozenset([ 
1529    HT_KVM_SPICE_VIDEO_STREAM_DETECTION_OFF, 
1530    HT_KVM_SPICE_VIDEO_STREAM_DETECTION_ALL, 
1531    HT_KVM_SPICE_VIDEO_STREAM_DETECTION_FILTER, 
1532    ]) 
1533   
1534  # Security models 
1535  HT_SM_NONE = "none" 
1536  HT_SM_USER = "user" 
1537  HT_SM_POOL = "pool" 
1538   
1539  HT_KVM_VALID_SM_TYPES = compat.UniqueFrozenset([ 
1540    HT_SM_NONE, 
1541    HT_SM_USER, 
1542    HT_SM_POOL, 
1543    ]) 
1544   
1545  # Kvm flag values 
1546  HT_KVM_ENABLED = "enabled" 
1547  HT_KVM_DISABLED = "disabled" 
1548   
1549  HT_KVM_FLAG_VALUES = compat.UniqueFrozenset([HT_KVM_ENABLED, HT_KVM_DISABLED]) 
1550   
1551  # Migration type 
1552  HT_MIGRATION_LIVE = "live" 
1553  HT_MIGRATION_NONLIVE = "non-live" 
1554  HT_MIGRATION_MODES = compat.UniqueFrozenset([ 
1555    HT_MIGRATION_LIVE, 
1556    HT_MIGRATION_NONLIVE, 
1557    ]) 
1558   
1559  # Cluster Verify steps 
1560  VERIFY_NPLUSONE_MEM = "nplusone_mem" 
1561  VERIFY_OPTIONAL_CHECKS = compat.UniqueFrozenset([VERIFY_NPLUSONE_MEM]) 
1562   
1563  # Cluster Verify error classes 
1564  CV_TCLUSTER = "cluster" 
1565  CV_TGROUP = "group" 
1566  CV_TNODE = "node" 
1567  CV_TINSTANCE = "instance" 
1568   
1569  # Cluster Verify error codes and documentation 
1570  CV_ECLUSTERCFG = \ 
1571    (CV_TCLUSTER, "ECLUSTERCFG", "Cluster configuration verification failure") 
1572  CV_ECLUSTERCERT = \ 
1573    (CV_TCLUSTER, "ECLUSTERCERT", 
1574     "Cluster certificate files verification failure") 
1575  CV_ECLUSTERFILECHECK = \ 
1576    (CV_TCLUSTER, "ECLUSTERFILECHECK", 
1577     "Cluster configuration verification failure") 
1578  CV_ECLUSTERDANGLINGNODES = \ 
1579    (CV_TNODE, "ECLUSTERDANGLINGNODES", 
1580     "Some nodes belong to non-existing groups") 
1581  CV_ECLUSTERDANGLINGINST = \ 
1582    (CV_TNODE, "ECLUSTERDANGLINGINST", 
1583     "Some instances have a non-existing primary node") 
1584  CV_EGROUPDIFFERENTPVSIZE = \ 
1585    (CV_TGROUP, "EGROUPDIFFERENTPVSIZE", "PVs in the group have different sizes") 
1586  CV_EINSTANCEBADNODE = \ 
1587    (CV_TINSTANCE, "EINSTANCEBADNODE", 
1588     "Instance marked as running lives on an offline node") 
1589  CV_EINSTANCEDOWN = \ 
1590    (CV_TINSTANCE, "EINSTANCEDOWN", "Instance not running on its primary node") 
1591  CV_EINSTANCELAYOUT = \ 
1592    (CV_TINSTANCE, "EINSTANCELAYOUT", "Instance has multiple secondary nodes") 
1593  CV_EINSTANCEMISSINGDISK = \ 
1594    (CV_TINSTANCE, "EINSTANCEMISSINGDISK", "Missing volume on an instance") 
1595  CV_EINSTANCEFAULTYDISK = \ 
1596    (CV_TINSTANCE, "EINSTANCEFAULTYDISK", 
1597     "Impossible to retrieve status for a disk") 
1598  CV_EINSTANCEWRONGNODE = \ 
1599    (CV_TINSTANCE, "EINSTANCEWRONGNODE", "Instance running on the wrong node") 
1600  CV_EINSTANCESPLITGROUPS = \ 
1601    (CV_TINSTANCE, "EINSTANCESPLITGROUPS", 
1602     "Instance with primary and secondary nodes in different groups") 
1603  CV_EINSTANCEPOLICY = \ 
1604    (CV_TINSTANCE, "EINSTANCEPOLICY", 
1605     "Instance does not meet policy") 
1606  CV_EINSTANCEUNSUITABLENODE = \ 
1607    (CV_TINSTANCE, "EINSTANCEUNSUITABLENODE", 
1608     "Instance running on nodes that are not suitable for it") 
1609  CV_EINSTANCEMISSINGCFGPARAMETER = \ 
1610    (CV_TINSTANCE, "EINSTANCEMISSINGCFGPARAMETER", 
1611     "A configuration parameter for an instance is missing") 
1612  CV_ENODEDRBD = \ 
1613    (CV_TNODE, "ENODEDRBD", "Error parsing the DRBD status file") 
1614  CV_ENODEDRBDVERSION = \ 
1615    (CV_TNODE, "ENODEDRBDVERSION", "DRBD version mismatch within a node group") 
1616  CV_ENODEDRBDHELPER = \ 
1617    (CV_TNODE, "ENODEDRBDHELPER", "Error caused by the DRBD helper") 
1618  CV_ENODEFILECHECK = \ 
1619    (CV_TNODE, "ENODEFILECHECK", 
1620     "Error retrieving the checksum of the node files") 
1621  CV_ENODEHOOKS = \ 
1622    (CV_TNODE, "ENODEHOOKS", "Communication failure in hooks execution") 
1623  CV_ENODEHV = \ 
1624    (CV_TNODE, "ENODEHV", "Hypervisor parameters verification failure") 
1625  CV_ENODELVM = \ 
1626    (CV_TNODE, "ENODELVM", "LVM-related node error") 
1627  CV_ENODEN1 = \ 
1628    (CV_TNODE, "ENODEN1", "Not enough memory to accommodate instance failovers") 
1629  CV_ENODENET = \ 
1630    (CV_TNODE, "ENODENET", "Network-related node error") 
1631  CV_ENODEOS = \ 
1632    (CV_TNODE, "ENODEOS", "OS-related node error") 
1633  CV_ENODEORPHANINSTANCE = \ 
1634    (CV_TNODE, "ENODEORPHANINSTANCE", "Unknown intance running on a node") 
1635  CV_ENODEORPHANLV = \ 
1636    (CV_TNODE, "ENODEORPHANLV", "Unknown LVM logical volume") 
1637  CV_ENODERPC = \ 
1638    (CV_TNODE, "ENODERPC", 
1639     "Error during connection to the primary node of an instance") 
1640  CV_ENODESSH = \ 
1641    (CV_TNODE, "ENODESSH", "SSH-related node error") 
1642  CV_ENODEVERSION = \ 
1643    (CV_TNODE, "ENODEVERSION", 
1644     "Protocol version mismatch or Ganeti version mismatch") 
1645  CV_ENODESETUP = \ 
1646    (CV_TNODE, "ENODESETUP", "Node setup error") 
1647  CV_ENODETIME = \ 
1648    (CV_TNODE, "ENODETIME", "Node returned invalid time") 
1649  CV_ENODEOOBPATH = \ 
1650    (CV_TNODE, "ENODEOOBPATH", "Invalid Out Of Band path") 
1651  CV_ENODEUSERSCRIPTS = \ 
1652    (CV_TNODE, "ENODEUSERSCRIPTS", "User scripts not present or not executable") 
1653  CV_ENODEFILESTORAGEPATHS = \ 
1654    (CV_TNODE, "ENODEFILESTORAGEPATHS", "Detected bad file storage paths") 
1655  CV_ENODEFILESTORAGEPATHUNUSABLE = \ 
1656    (CV_TNODE, "ENODEFILESTORAGEPATHUNUSABLE", "File storage path unusable") 
1657  CV_ENODESHAREDFILESTORAGEPATHUNUSABLE = \ 
1658    (CV_TNODE, "ENODESHAREDFILESTORAGEPATHUNUSABLE", 
1659        "Shared file storage path unusable") 
1660   
1661  CV_ALL_ECODES = compat.UniqueFrozenset([ 
1662    CV_ECLUSTERCFG, 
1663    CV_ECLUSTERCERT, 
1664    CV_ECLUSTERFILECHECK, 
1665    CV_ECLUSTERDANGLINGNODES, 
1666    CV_ECLUSTERDANGLINGINST, 
1667    CV_EINSTANCEBADNODE, 
1668    CV_EINSTANCEDOWN, 
1669    CV_EINSTANCELAYOUT, 
1670    CV_EINSTANCEMISSINGDISK, 
1671    CV_EINSTANCEFAULTYDISK, 
1672    CV_EINSTANCEWRONGNODE, 
1673    CV_EINSTANCESPLITGROUPS, 
1674    CV_EINSTANCEPOLICY, 
1675    CV_ENODEDRBD, 
1676    CV_ENODEDRBDHELPER, 
1677    CV_ENODEFILECHECK, 
1678    CV_ENODEHOOKS, 
1679    CV_ENODEHV, 
1680    CV_ENODELVM, 
1681    CV_ENODEN1, 
1682    CV_ENODENET, 
1683    CV_ENODEOS, 
1684    CV_ENODEORPHANINSTANCE, 
1685    CV_ENODEORPHANLV, 
1686    CV_ENODERPC, 
1687    CV_ENODESSH, 
1688    CV_ENODEVERSION, 
1689    CV_ENODESETUP, 
1690    CV_ENODETIME, 
1691    CV_ENODEOOBPATH, 
1692    CV_ENODEUSERSCRIPTS, 
1693    CV_ENODEFILESTORAGEPATHS, 
1694    CV_ENODEFILESTORAGEPATHUNUSABLE, 
1695    CV_ENODESHAREDFILESTORAGEPATHUNUSABLE, 
1696    ]) 
1697   
1698  CV_ALL_ECODES_STRINGS = \ 
1699    compat.UniqueFrozenset(estr for (_, estr, _) in CV_ALL_ECODES) 
1700   
1701  # Node verify constants 
1702  NV_BRIDGES = "bridges" 
1703  NV_DRBDHELPER = "drbd-helper" 
1704  NV_DRBDVERSION = "drbd-version" 
1705  NV_DRBDLIST = "drbd-list" 
1706  NV_EXCLUSIVEPVS = "exclusive-pvs" 
1707  NV_FILELIST = "filelist" 
1708  NV_ACCEPTED_STORAGE_PATHS = "allowed-file-storage-paths" 
1709  NV_FILE_STORAGE_PATH = "file-storage-path" 
1710  NV_SHARED_FILE_STORAGE_PATH = "shared-file-storage-path" 
1711  NV_HVINFO = "hvinfo" 
1712  NV_HVPARAMS = "hvparms" 
1713  NV_HYPERVISOR = "hypervisor" 
1714  NV_INSTANCELIST = "instancelist" 
1715  NV_LVLIST = "lvlist" 
1716  NV_MASTERIP = "master-ip" 
1717  NV_NODELIST = "nodelist" 
1718  NV_NODENETTEST = "node-net-test" 
1719  NV_NODESETUP = "nodesetup" 
1720  NV_OOB_PATHS = "oob-paths" 
1721  NV_OSLIST = "oslist" 
1722  NV_PVLIST = "pvlist" 
1723  NV_TIME = "time" 
1724  NV_USERSCRIPTS = "user-scripts" 
1725  NV_VERSION = "version" 
1726  NV_VGLIST = "vglist" 
1727  NV_VMNODES = "vmnodes" 
1728   
1729  # Instance status 
1730  INSTST_RUNNING = "running" 
1731  INSTST_ADMINDOWN = "ADMIN_down" 
1732  INSTST_ADMINOFFLINE = "ADMIN_offline" 
1733  INSTST_NODEOFFLINE = "ERROR_nodeoffline" 
1734  INSTST_NODEDOWN = "ERROR_nodedown" 
1735  INSTST_WRONGNODE = "ERROR_wrongnode" 
1736  INSTST_ERRORUP = "ERROR_up" 
1737  INSTST_ERRORDOWN = "ERROR_down" 
1738  INSTST_ALL = compat.UniqueFrozenset([ 
1739    INSTST_RUNNING, 
1740    INSTST_ADMINDOWN, 
1741    INSTST_ADMINOFFLINE, 
1742    INSTST_NODEOFFLINE, 
1743    INSTST_NODEDOWN, 
1744    INSTST_WRONGNODE, 
1745    INSTST_ERRORUP, 
1746    INSTST_ERRORDOWN, 
1747    ]) 
1748   
1749  # Admin states 
1750  ADMINST_UP = "up" 
1751  ADMINST_DOWN = "down" 
1752  ADMINST_OFFLINE = "offline" 
1753  ADMINST_ALL = compat.UniqueFrozenset([ 
1754    ADMINST_UP, 
1755    ADMINST_DOWN, 
1756    ADMINST_OFFLINE, 
1757    ]) 
1758   
1759  # Node roles 
1760  NR_REGULAR = "R" 
1761  NR_MASTER = "M" 
1762  NR_MCANDIDATE = "C" 
1763  NR_DRAINED = "D" 
1764  NR_OFFLINE = "O" 
1765  NR_ALL = compat.UniqueFrozenset([ 
1766    NR_REGULAR, 
1767    NR_MASTER, 
1768    NR_MCANDIDATE, 
1769    NR_DRAINED, 
1770    NR_OFFLINE, 
1771    ]) 
1772   
1773  # SSL certificate check constants (in days) 
1774  SSL_CERT_EXPIRATION_WARN = 30 
1775  SSL_CERT_EXPIRATION_ERROR = 7 
1776   
1777  # Allocator framework constants 
1778  IALLOCATOR_VERSION = 2 
1779  IALLOCATOR_DIR_IN = "in" 
1780  IALLOCATOR_DIR_OUT = "out" 
1781  VALID_IALLOCATOR_DIRECTIONS = compat.UniqueFrozenset([ 
1782    IALLOCATOR_DIR_IN, 
1783    IALLOCATOR_DIR_OUT, 
1784    ]) 
1785  IALLOCATOR_MODE_ALLOC = "allocate" 
1786  IALLOCATOR_MODE_RELOC = "relocate" 
1787  IALLOCATOR_MODE_CHG_GROUP = "change-group" 
1788  IALLOCATOR_MODE_NODE_EVAC = "node-evacuate" 
1789  IALLOCATOR_MODE_MULTI_ALLOC = "multi-allocate" 
1790  VALID_IALLOCATOR_MODES = compat.UniqueFrozenset([ 
1791    IALLOCATOR_MODE_ALLOC, 
1792    IALLOCATOR_MODE_RELOC, 
1793    IALLOCATOR_MODE_CHG_GROUP, 
1794    IALLOCATOR_MODE_NODE_EVAC, 
1795    IALLOCATOR_MODE_MULTI_ALLOC, 
1796    ]) 
1797  IALLOCATOR_SEARCH_PATH = _autoconf.IALLOCATOR_SEARCH_PATH 
1798  DEFAULT_IALLOCATOR_SHORTCUT = "." 
1799   
1800  IALLOCATOR_NEVAC_PRI = "primary-only" 
1801  IALLOCATOR_NEVAC_SEC = "secondary-only" 
1802  IALLOCATOR_NEVAC_ALL = "all" 
1803  IALLOCATOR_NEVAC_MODES = compat.UniqueFrozenset([ 
1804    IALLOCATOR_NEVAC_PRI, 
1805    IALLOCATOR_NEVAC_SEC, 
1806    IALLOCATOR_NEVAC_ALL, 
1807    ]) 
1808   
1809  # Node evacuation 
1810  NODE_EVAC_PRI = "primary-only" 
1811  NODE_EVAC_SEC = "secondary-only" 
1812  NODE_EVAC_ALL = "all" 
1813  NODE_EVAC_MODES = compat.UniqueFrozenset([ 
1814    NODE_EVAC_PRI, 
1815    NODE_EVAC_SEC, 
1816    NODE_EVAC_ALL, 
1817    ]) 
1818   
1819  # Job queue 
1820  JOB_QUEUE_VERSION = 1 
1821  JOB_QUEUE_SIZE_HARD_LIMIT = 5000 
1822  JOB_QUEUE_FILES_PERMS = 0640 
1823   
1824  JOB_ID_TEMPLATE = r"\d+" 
1825  JOB_FILE_RE = re.compile(r"^job-(%s)$" % JOB_ID_TEMPLATE) 
1826   
1827  # unchanged job return 
1828  JOB_NOTCHANGED = "nochange" 
1829   
1830  # Job status 
1831  JOB_STATUS_QUEUED = "queued" 
1832  JOB_STATUS_WAITING = "waiting" 
1833  JOB_STATUS_CANCELING = "canceling" 
1834  JOB_STATUS_RUNNING = "running" 
1835  JOB_STATUS_CANCELED = "canceled" 
1836  JOB_STATUS_SUCCESS = "success" 
1837  JOB_STATUS_ERROR = "error" 
1838  JOBS_PENDING = compat.UniqueFrozenset([ 
1839    JOB_STATUS_QUEUED, 
1840    JOB_STATUS_WAITING, 
1841    JOB_STATUS_CANCELING, 
1842    ]) 
1843  JOBS_FINALIZED = compat.UniqueFrozenset([ 
1844    JOB_STATUS_CANCELED, 
1845    JOB_STATUS_SUCCESS, 
1846    JOB_STATUS_ERROR, 
1847    ]) 
1848  JOB_STATUS_ALL = compat.UniqueFrozenset([ 
1849    JOB_STATUS_RUNNING, 
1850    ]) | JOBS_PENDING | JOBS_FINALIZED 
1851   
1852  # OpCode status 
1853  # not yet finalized 
1854  OP_STATUS_QUEUED = "queued" 
1855  OP_STATUS_WAITING = "waiting" 
1856  OP_STATUS_CANCELING = "canceling" 
1857  OP_STATUS_RUNNING = "running" 
1858  # finalized 
1859  OP_STATUS_CANCELED = "canceled" 
1860  OP_STATUS_SUCCESS = "success" 
1861  OP_STATUS_ERROR = "error" 
1862  OPS_FINALIZED = compat.UniqueFrozenset([ 
1863    OP_STATUS_CANCELED, 
1864    OP_STATUS_SUCCESS, 
1865    OP_STATUS_ERROR, 
1866    ]) 
1867   
1868  # OpCode priority 
1869  OP_PRIO_LOWEST = +19 
1870  OP_PRIO_HIGHEST = -20 
1871   
1872  OP_PRIO_LOW = +10 
1873  OP_PRIO_NORMAL = 0 
1874  OP_PRIO_HIGH = -10 
1875   
1876  OP_PRIO_SUBMIT_VALID = compat.UniqueFrozenset([ 
1877    OP_PRIO_LOW, 
1878    OP_PRIO_NORMAL, 
1879    OP_PRIO_HIGH, 
1880    ]) 
1881   
1882  OP_PRIO_DEFAULT = OP_PRIO_NORMAL 
1883   
1884  # Lock recalculate mode 
1885  LOCKS_REPLACE = "replace" 
1886  LOCKS_APPEND = "append" 
1887   
1888  # Lock timeout (sum) before we should go into blocking acquire (still 
1889  # can be reset by priority change); computed as max time (10 hours) 
1890  # before we should actually go into blocking acquire given that we 
1891  # start from default priority level; in seconds 
1892  # TODO 
1893  LOCK_ATTEMPTS_TIMEOUT = 10 * 3600 / (OP_PRIO_DEFAULT - OP_PRIO_HIGHEST) 
1894  LOCK_ATTEMPTS_MAXWAIT = 15.0 
1895  LOCK_ATTEMPTS_MINWAIT = 1.0 
1896   
1897  # Execution log types 
1898  ELOG_MESSAGE = "message" 
1899  ELOG_REMOTE_IMPORT = "remote-import" 
1900  ELOG_JQUEUE_TEST = "jqueue-test" 
1901   
1902  # /etc/hosts modification 
1903  ETC_HOSTS_ADD = "add" 
1904  ETC_HOSTS_REMOVE = "remove" 
1905   
1906  # Job queue test 
1907  JQT_MSGPREFIX = "TESTMSG=" 
1908  JQT_EXPANDNAMES = "expandnames" 
1909  JQT_EXEC = "exec" 
1910  JQT_LOGMSG = "logmsg" 
1911  JQT_STARTMSG = "startmsg" 
1912  JQT_ALL = compat.UniqueFrozenset([ 
1913    JQT_EXPANDNAMES, 
1914    JQT_EXEC, 
1915    JQT_LOGMSG, 
1916    JQT_STARTMSG, 
1917    ]) 
1918   
1919  # Query resources 
1920  QR_CLUSTER = "cluster" 
1921  QR_INSTANCE = "instance" 
1922  QR_NODE = "node" 
1923  QR_LOCK = "lock" 
1924  QR_GROUP = "group" 
1925  QR_OS = "os" 
1926  QR_JOB = "job" 
1927  QR_EXPORT = "export" 
1928  QR_NETWORK = "network" 
1929  QR_EXTSTORAGE = "extstorage" 
1930   
1931  #: List of resources which can be queried using L{opcodes.OpQuery} 
1932  QR_VIA_OP = compat.UniqueFrozenset([ 
1933    QR_CLUSTER, 
1934    QR_INSTANCE, 
1935    QR_NODE, 
1936    QR_GROUP, 
1937    QR_OS, 
1938    QR_EXPORT, 
1939    QR_NETWORK, 
1940    QR_EXTSTORAGE, 
1941    ]) 
1942   
1943  #: List of resources which can be queried using Local UniX Interface 
1944  QR_VIA_LUXI = QR_VIA_OP.union([ 
1945    QR_LOCK, 
1946    QR_JOB, 
1947    ]) 
1948   
1949  #: List of resources which can be queried using RAPI 
1950  QR_VIA_RAPI = QR_VIA_LUXI 
1951   
1952  # Query field types 
1953  QFT_UNKNOWN = "unknown" 
1954  QFT_TEXT = "text" 
1955  QFT_BOOL = "bool" 
1956  QFT_NUMBER = "number" 
1957  QFT_UNIT = "unit" 
1958  QFT_TIMESTAMP = "timestamp" 
1959  QFT_OTHER = "other" 
1960   
1961  #: All query field types 
1962  QFT_ALL = compat.UniqueFrozenset([ 
1963    QFT_UNKNOWN, 
1964    QFT_TEXT, 
1965    QFT_BOOL, 
1966    QFT_NUMBER, 
1967    QFT_UNIT, 
1968    QFT_TIMESTAMP, 
1969    QFT_OTHER, 
1970    ]) 
1971   
1972  # Query result field status (don't change or reuse values as they're used by 
1973  # clients) 
1974  #: Normal field status 
1975  RS_NORMAL = 0 
1976  #: Unknown field 
1977  RS_UNKNOWN = 1 
1978  #: No data (e.g. RPC error), can be used instead of L{RS_OFFLINE} 
1979  RS_NODATA = 2 
1980  #: Value unavailable/unsupported for item; if this field is supported 
1981  #: but we cannot get the data for the moment, RS_NODATA or 
1982  #: RS_OFFLINE should be used 
1983  RS_UNAVAIL = 3 
1984  #: Resource marked offline 
1985  RS_OFFLINE = 4 
1986   
1987  RS_ALL = compat.UniqueFrozenset([ 
1988    RS_NORMAL, 
1989    RS_UNKNOWN, 
1990    RS_NODATA, 
1991    RS_UNAVAIL, 
1992    RS_OFFLINE, 
1993    ]) 
1994   
1995  #: Dictionary with special field cases and their verbose/terse formatting 
1996  RSS_DESCRIPTION = { 
1997    RS_UNKNOWN: ("(unknown)", "??"), 
1998    RS_NODATA: ("(nodata)", "?"), 
1999    RS_OFFLINE: ("(offline)", "*"), 
2000    RS_UNAVAIL: ("(unavail)", "-"), 
2001    } 
2002   
2003  # max dynamic devices 
2004  MAX_NICS = 8 
2005  MAX_DISKS = 16 
2006   
2007  # SSCONF file prefix 
2008  SSCONF_FILEPREFIX = "ssconf_" 
2009  # SSCONF keys 
2010  SS_CLUSTER_NAME = "cluster_name" 
2011  SS_CLUSTER_TAGS = "cluster_tags" 
2012  SS_FILE_STORAGE_DIR = "file_storage_dir" 
2013  SS_SHARED_FILE_STORAGE_DIR = "shared_file_storage_dir" 
2014  SS_MASTER_CANDIDATES = "master_candidates" 
2015  SS_MASTER_CANDIDATES_IPS = "master_candidates_ips" 
2016  SS_MASTER_IP = "master_ip" 
2017  SS_MASTER_NETDEV = "master_netdev" 
2018  SS_MASTER_NETMASK = "master_netmask" 
2019  SS_MASTER_NODE = "master_node" 
2020  SS_NODE_LIST = "node_list" 
2021  SS_NODE_PRIMARY_IPS = "node_primary_ips" 
2022  SS_NODE_SECONDARY_IPS = "node_secondary_ips" 
2023  SS_OFFLINE_NODES = "offline_nodes" 
2024  SS_ONLINE_NODES = "online_nodes" 
2025  SS_PRIMARY_IP_FAMILY = "primary_ip_family" 
2026  SS_INSTANCE_LIST = "instance_list" 
2027  SS_RELEASE_VERSION = "release_version" 
2028  SS_HYPERVISOR_LIST = "hypervisor_list" 
2029  SS_MAINTAIN_NODE_HEALTH = "maintain_node_health" 
2030  SS_UID_POOL = "uid_pool" 
2031  SS_NODEGROUPS = "nodegroups" 
2032  SS_NETWORKS = "networks" 
2033   
2034  # This is not a complete SSCONF key, but the prefix for the hypervisor keys 
2035  SS_HVPARAMS_PREF = "hvparams_" 
2036   
2037  # Hvparams keys: 
2038  SS_HVPARAMS_XEN_PVM = SS_HVPARAMS_PREF + HT_XEN_PVM 
2039  SS_HVPARAMS_XEN_FAKE = SS_HVPARAMS_PREF + HT_FAKE 
2040  SS_HVPARAMS_XEN_HVM = SS_HVPARAMS_PREF + HT_XEN_HVM 
2041  SS_HVPARAMS_XEN_KVM = SS_HVPARAMS_PREF + HT_KVM 
2042  SS_HVPARAMS_XEN_CHROOT = SS_HVPARAMS_PREF + HT_CHROOT 
2043  SS_HVPARAMS_XEN_LXC = SS_HVPARAMS_PREF + HT_LXC 
2044   
2045  VALID_SS_HVPARAMS_KEYS = compat.UniqueFrozenset([ 
2046    SS_HVPARAMS_XEN_PVM, 
2047    SS_HVPARAMS_XEN_FAKE, 
2048    SS_HVPARAMS_XEN_HVM, 
2049    SS_HVPARAMS_XEN_KVM, 
2050    SS_HVPARAMS_XEN_CHROOT, 
2051    SS_HVPARAMS_XEN_LXC, 
2052    ]) 
2053   
2054  SS_FILE_PERMS = 0444 
2055   
2056  # cluster wide default parameters 
2057  DEFAULT_ENABLED_HYPERVISOR = HT_XEN_PVM 
2058   
2059  HVC_DEFAULTS = { 
2060    HT_XEN_PVM: { 
2061      HV_USE_BOOTLOADER: False, 
2062      HV_BOOTLOADER_PATH: XEN_BOOTLOADER, 
2063      HV_BOOTLOADER_ARGS: "", 
2064      HV_KERNEL_PATH: XEN_KERNEL, 
2065      HV_INITRD_PATH: "", 
2066      HV_ROOT_PATH: "/dev/xvda1", 
2067      HV_KERNEL_ARGS: "ro", 
2068      HV_MIGRATION_PORT: 8002, 
2069      HV_MIGRATION_MODE: HT_MIGRATION_LIVE, 
2070      HV_BLOCKDEV_PREFIX: "sd", 
2071      HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED, 
2072      HV_CPU_MASK: CPU_PINNING_ALL, 
2073      HV_CPU_CAP: 0, 
2074      HV_CPU_WEIGHT: 256, 
2075      HV_VIF_SCRIPT: "", 
2076      HV_XEN_CMD: XEN_CMD_XM, 
2077      }, 
2078    HT_XEN_HVM: { 
2079      HV_BOOT_ORDER: "cd", 
2080      HV_CDROM_IMAGE_PATH: "", 
2081      HV_NIC_TYPE: HT_NIC_RTL8139, 
2082      HV_DISK_TYPE: HT_DISK_PARAVIRTUAL, 
2083      HV_VNC_BIND_ADDRESS: IP4_ADDRESS_ANY, 
2084      HV_VNC_PASSWORD_FILE: pathutils.VNC_PASSWORD_FILE, 
2085      HV_ACPI: True, 
2086      HV_PAE: True, 
2087      HV_KERNEL_PATH: "/usr/lib/xen/boot/hvmloader", 
2088      HV_DEVICE_MODEL: "/usr/lib/xen/bin/qemu-dm", 
2089      HV_MIGRATION_PORT: 8002, 
2090      HV_MIGRATION_MODE: HT_MIGRATION_NONLIVE, 
2091      HV_USE_LOCALTIME: False, 
2092      HV_BLOCKDEV_PREFIX: "hd", 
2093      HV_PASSTHROUGH: "", 
2094      HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED, 
2095      HV_CPU_MASK: CPU_PINNING_ALL, 
2096      HV_CPU_CAP: 0, 
2097      HV_CPU_WEIGHT: 256, 
2098      HV_VIF_TYPE: HT_HVM_VIF_IOEMU, 
2099      HV_VIF_SCRIPT: "", 
2100      HV_VIRIDIAN: False, 
2101      HV_XEN_CMD: XEN_CMD_XM, 
2102      }, 
2103    HT_KVM: { 
2104      HV_KVM_PATH: KVM_PATH, 
2105      HV_KERNEL_PATH: KVM_KERNEL, 
2106      HV_INITRD_PATH: "", 
2107      HV_KERNEL_ARGS: "ro", 
2108      HV_ROOT_PATH: "/dev/vda1", 
2109      HV_ACPI: True, 
2110      HV_SERIAL_CONSOLE: True, 
2111      HV_SERIAL_SPEED: 38400, 
2112      HV_VNC_BIND_ADDRESS: "", 
2113      HV_VNC_TLS: False, 
2114      HV_VNC_X509: "", 
2115      HV_VNC_X509_VERIFY: False, 
2116      HV_VNC_PASSWORD_FILE: "", 
2117      HV_KVM_SPICE_BIND: "", 
2118      HV_KVM_SPICE_IP_VERSION: IFACE_NO_IP_VERSION_SPECIFIED, 
2119      HV_KVM_SPICE_PASSWORD_FILE: "", 
2120      HV_KVM_SPICE_LOSSLESS_IMG_COMPR: "", 
2121      HV_KVM_SPICE_JPEG_IMG_COMPR: "", 
2122      HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR: "", 
2123      HV_KVM_SPICE_STREAMING_VIDEO_DETECTION: "", 
2124      HV_KVM_SPICE_AUDIO_COMPR: True, 
2125      HV_KVM_SPICE_USE_TLS: False, 
2126      HV_KVM_SPICE_TLS_CIPHERS: OPENSSL_CIPHERS, 
2127      HV_KVM_SPICE_USE_VDAGENT: True, 
2128      HV_KVM_FLOPPY_IMAGE_PATH: "", 
2129      HV_CDROM_IMAGE_PATH: "", 
2130      HV_KVM_CDROM2_IMAGE_PATH: "", 
2131      HV_BOOT_ORDER: HT_BO_DISK, 
2132      HV_NIC_TYPE: HT_NIC_PARAVIRTUAL, 
2133      HV_DISK_TYPE: HT_DISK_PARAVIRTUAL, 
2134      HV_KVM_CDROM_DISK_TYPE: "", 
2135      HV_USB_MOUSE: "", 
2136      HV_KEYMAP: "", 
2137      HV_MIGRATION_PORT: 8102, 
2138      HV_MIGRATION_BANDWIDTH: 32, # MiB/s 
2139      HV_MIGRATION_DOWNTIME: 30,  # ms 
2140      HV_MIGRATION_MODE: HT_MIGRATION_LIVE, 
2141      HV_USE_LOCALTIME: False, 
2142      HV_DISK_CACHE: HT_CACHE_DEFAULT, 
2143      HV_SECURITY_MODEL: HT_SM_NONE, 
2144      HV_SECURITY_DOMAIN: "", 
2145      HV_KVM_FLAG: "", 
2146      HV_VHOST_NET: False, 
2147      HV_KVM_USE_CHROOT: False, 
2148      HV_MEM_PATH: "", 
2149      HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED, 
2150      HV_CPU_MASK: CPU_PINNING_ALL, 
2151      HV_CPU_TYPE: "", 
2152      HV_CPU_CORES: 0, 
2153      HV_CPU_THREADS: 0, 
2154      HV_CPU_SOCKETS: 0, 
2155      HV_SOUNDHW: "", 
2156      HV_USB_DEVICES: "", 
2157      HV_VGA: "", 
2158      HV_KVM_EXTRA: "", 
2159      HV_KVM_MACHINE_VERSION: "", 
2160      HV_VNET_HDR: True, 
2161      }, 
2162    HT_FAKE: { 
2163      HV_MIGRATION_MODE: HT_MIGRATION_LIVE, 
2164    }, 
2165    HT_CHROOT: { 
2166      HV_INIT_SCRIPT: "/ganeti-chroot", 
2167      }, 
2168    HT_LXC: { 
2169      HV_CPU_MASK: "", 
2170      }, 
2171    } 
2172   
2173  HVC_GLOBALS = compat.UniqueFrozenset([ 
2174    HV_MIGRATION_PORT, 
2175    HV_MIGRATION_BANDWIDTH, 
2176    HV_MIGRATION_MODE, 
2177    HV_XEN_CMD, 
2178    ]) 
2179   
2180  BEC_DEFAULTS = { 
2181    BE_MINMEM: 128, 
2182    BE_MAXMEM: 128, 
2183    BE_VCPUS: 1, 
2184    BE_AUTO_BALANCE: True, 
2185    BE_ALWAYS_FAILOVER: False, 
2186    BE_SPINDLE_USE: 1, 
2187    } 
2188   
2189  NDC_DEFAULTS = { 
2190    ND_OOB_PROGRAM: "", 
2191    ND_SPINDLE_COUNT: 1, 
2192    ND_EXCLUSIVE_STORAGE: False, 
2193    } 
2194   
2195  NDC_GLOBALS = compat.UniqueFrozenset([ 
2196    ND_EXCLUSIVE_STORAGE, 
2197    ]) 
2198   
2199  DISK_LD_DEFAULTS = { 
2200    DT_DRBD8: { 
2201      LDP_RESYNC_RATE: CLASSIC_DRBD_SYNC_SPEED, 
2202      LDP_BARRIERS: _autoconf.DRBD_BARRIERS, 
2203      LDP_NO_META_FLUSH: _autoconf.DRBD_NO_META_FLUSH, 
2204      LDP_DEFAULT_METAVG: DEFAULT_VG, 
2205      LDP_DISK_CUSTOM: "", 
2206      LDP_NET_CUSTOM: "", 
2207      LDP_PROTOCOL: DRBD_DEFAULT_NET_PROTOCOL, 
2208      LDP_DYNAMIC_RESYNC: False, 
2209   
2210      # The default values for the DRBD dynamic resync speed algorithm 
2211      # are taken from the drbsetup 8.3.11 man page, except for 
2212      # c-plan-ahead (that we don't need to set to 0, because we have a 
2213      # separate option to enable it) and for c-max-rate, that we cap to 
2214      # the default value for the static resync rate. 
2215      LDP_PLAN_AHEAD: 20, # ds 
2216      LDP_FILL_TARGET: 0, # sectors 
2217      LDP_DELAY_TARGET: 1, # ds 
2218      LDP_MAX_RATE: CLASSIC_DRBD_SYNC_SPEED, # KiB/s 
2219      LDP_MIN_RATE: 4 * 1024, # KiB/s 
2220      }, 
2221    DT_PLAIN: { 
2222      LDP_STRIPES: _autoconf.LVM_STRIPECOUNT 
2223      }, 
2224    DT_FILE: {}, 
2225    DT_SHARED_FILE: {}, 
2226    DT_BLOCK: {}, 
2227    DT_RBD: { 
2228      LDP_POOL: "rbd" 
2229      }, 
2230    DT_EXT: {}, 
2231    } 
2232   
2233  # readability shortcuts 
2234  _LV_DEFAULTS = DISK_LD_DEFAULTS[DT_PLAIN] 
2235  _DRBD_DEFAULTS = DISK_LD_DEFAULTS[DT_DRBD8] 
2236   
2237  DISK_DT_DEFAULTS = { 
2238    DT_PLAIN: { 
2239      LV_STRIPES: DISK_LD_DEFAULTS[DT_PLAIN][LDP_STRIPES], 
2240      }, 
2241    DT_DRBD8: { 
2242      DRBD_RESYNC_RATE: _DRBD_DEFAULTS[LDP_RESYNC_RATE], 
2243      DRBD_DATA_STRIPES: _LV_DEFAULTS[LDP_STRIPES], 
2244      DRBD_META_STRIPES: _LV_DEFAULTS[LDP_STRIPES], 
2245      DRBD_DISK_BARRIERS: _DRBD_DEFAULTS[LDP_BARRIERS], 
2246      DRBD_META_BARRIERS: _DRBD_DEFAULTS[LDP_NO_META_FLUSH], 
2247      DRBD_DEFAULT_METAVG: _DRBD_DEFAULTS[LDP_DEFAULT_METAVG], 
2248      DRBD_DISK_CUSTOM: _DRBD_DEFAULTS[LDP_DISK_CUSTOM], 
2249      DRBD_NET_CUSTOM: _DRBD_DEFAULTS[LDP_NET_CUSTOM], 
2250      DRBD_PROTOCOL: _DRBD_DEFAULTS[LDP_PROTOCOL], 
2251      DRBD_DYNAMIC_RESYNC: _DRBD_DEFAULTS[LDP_DYNAMIC_RESYNC], 
2252      DRBD_PLAN_AHEAD: _DRBD_DEFAULTS[LDP_PLAN_AHEAD], 
2253      DRBD_FILL_TARGET: _DRBD_DEFAULTS[LDP_FILL_TARGET], 
2254      DRBD_DELAY_TARGET: _DRBD_DEFAULTS[LDP_DELAY_TARGET], 
2255      DRBD_MAX_RATE: _DRBD_DEFAULTS[LDP_MAX_RATE], 
2256      DRBD_MIN_RATE: _DRBD_DEFAULTS[LDP_MIN_RATE], 
2257      }, 
2258    DT_DISKLESS: {}, 
2259    DT_FILE: {}, 
2260    DT_SHARED_FILE: {}, 
2261    DT_BLOCK: {}, 
2262    DT_RBD: { 
2263      RBD_POOL: DISK_LD_DEFAULTS[DT_RBD][LDP_POOL] 
2264      }, 
2265    DT_EXT: {}, 
2266    } 
2267   
2268  # we don't want to export the shortcuts 
2269  del _LV_DEFAULTS, _DRBD_DEFAULTS 
2270   
2271  NICC_DEFAULTS = { 
2272    NIC_MODE: NIC_MODE_BRIDGED, 
2273    NIC_LINK: DEFAULT_BRIDGE, 
2274    } 
2275   
2276  # All of the following values are quite arbitrarily - there are no 
2277  # "good" defaults, these must be customised per-site 
2278  ISPECS_MINMAX_DEFAULTS = { 
2279    ISPECS_MIN: { 
2280      ISPEC_MEM_SIZE: 128, 
2281      ISPEC_CPU_COUNT: 1, 
2282      ISPEC_DISK_COUNT: 1, 
2283      ISPEC_DISK_SIZE: 1024, 
2284      ISPEC_NIC_COUNT: 1, 
2285      ISPEC_SPINDLE_USE: 1, 
2286      }, 
2287    ISPECS_MAX: { 
2288      ISPEC_MEM_SIZE: 32768, 
2289      ISPEC_CPU_COUNT: 8, 
2290      ISPEC_DISK_COUNT: MAX_DISKS, 
2291      ISPEC_DISK_SIZE: 1024 * 1024, 
2292      ISPEC_NIC_COUNT: MAX_NICS, 
2293      ISPEC_SPINDLE_USE: 12, 
2294      }, 
2295    } 
2296  IPOLICY_DEFAULTS = { 
2297    ISPECS_MINMAX: [ISPECS_MINMAX_DEFAULTS], 
2298    ISPECS_STD: { 
2299      ISPEC_MEM_SIZE: 128, 
2300      ISPEC_CPU_COUNT: 1, 
2301      ISPEC_DISK_COUNT: 1, 
2302      ISPEC_DISK_SIZE: 1024, 
2303      ISPEC_NIC_COUNT: 1, 
2304      ISPEC_SPINDLE_USE: 1, 
2305      }, 
2306    IPOLICY_DTS: list(DISK_TEMPLATES), 
2307    IPOLICY_VCPU_RATIO: 4.0, 
2308    IPOLICY_SPINDLE_RATIO: 32.0, 
2309    } 
2310   
2311  MASTER_POOL_SIZE_DEFAULT = 10 
2312   
2313  # Exclusive storage: 
2314  # Error margin used to compare physical disks 
2315  PART_MARGIN = .01 
2316  # Space reserved when creating instance disks 
2317  PART_RESERVED = .02 
2318   
2319  CONFD_PROTOCOL_VERSION = 1 
2320   
2321  CONFD_REQ_PING = 0 
2322  CONFD_REQ_NODE_ROLE_BYNAME = 1 
2323  CONFD_REQ_NODE_PIP_BY_INSTANCE_IP = 2 
2324  CONFD_REQ_CLUSTER_MASTER = 3 
2325  CONFD_REQ_NODE_PIP_LIST = 4 
2326  CONFD_REQ_MC_PIP_LIST = 5 
2327  CONFD_REQ_INSTANCES_IPS_LIST = 6 
2328  CONFD_REQ_NODE_DRBD = 7 
2329  CONFD_REQ_NODE_INSTANCES = 8 
2330   
2331  # Confd request query fields. These are used to narrow down queries. 
2332  # These must be strings rather than integers, because json-encoding 
2333  # converts them to strings anyway, as they're used as dict-keys. 
2334  CONFD_REQQ_LINK = "0" 
2335  CONFD_REQQ_IP = "1" 
2336  CONFD_REQQ_IPLIST = "2" 
2337  CONFD_REQQ_FIELDS = "3" 
2338   
2339  CONFD_REQFIELD_NAME = "0" 
2340  CONFD_REQFIELD_IP = "1" 
2341  CONFD_REQFIELD_MNODE_PIP = "2" 
2342   
2343  CONFD_REQS = compat.UniqueFrozenset([ 
2344    CONFD_REQ_PING, 
2345    CONFD_REQ_NODE_ROLE_BYNAME, 
2346    CONFD_REQ_NODE_PIP_BY_INSTANCE_IP, 
2347    CONFD_REQ_CLUSTER_MASTER, 
2348    CONFD_REQ_NODE_PIP_LIST, 
2349    CONFD_REQ_MC_PIP_LIST, 
2350    CONFD_REQ_INSTANCES_IPS_LIST, 
2351    CONFD_REQ_NODE_DRBD, 
2352    ]) 
2353   
2354  CONFD_REPL_STATUS_OK = 0 
2355  CONFD_REPL_STATUS_ERROR = 1 
2356  CONFD_REPL_STATUS_NOTIMPLEMENTED = 2 
2357   
2358  CONFD_REPL_STATUSES = compat.UniqueFrozenset([ 
2359    CONFD_REPL_STATUS_OK, 
2360    CONFD_REPL_STATUS_ERROR, 
2361    CONFD_REPL_STATUS_NOTIMPLEMENTED, 
2362    ]) 
2363   
2364  (CONFD_NODE_ROLE_MASTER, 
2365   CONFD_NODE_ROLE_CANDIDATE, 
2366   CONFD_NODE_ROLE_OFFLINE, 
2367   CONFD_NODE_ROLE_DRAINED, 
2368   CONFD_NODE_ROLE_REGULAR, 
2369   ) = range(5) 
2370   
2371  # A few common errors for confd 
2372  CONFD_ERROR_UNKNOWN_ENTRY = 1 
2373  CONFD_ERROR_INTERNAL = 2 
2374  CONFD_ERROR_ARGUMENT = 3 
2375   
2376  # Each request is "salted" by the current timestamp. 
2377  # This constants decides how many seconds of skew to accept. 
2378  # TODO: make this a default and allow the value to be more configurable 
2379  CONFD_MAX_CLOCK_SKEW = 2 * NODE_MAX_CLOCK_SKEW 
2380   
2381  # When we haven't reloaded the config for more than this amount of 
2382  # seconds, we force a test to see if inotify is betraying us. Using a 
2383  # prime number to ensure we get less chance of 'same wakeup' with 
2384  # other processes. 
2385  CONFD_CONFIG_RELOAD_TIMEOUT = 17 
2386   
2387  # If we receive more than one update in this amount of microseconds, 
2388  # we move to polling every RATELIMIT seconds, rather than relying on 
2389  # inotify, to be able to serve more requests. 
2390  CONFD_CONFIG_RELOAD_RATELIMIT = 250000 
2391   
2392  # Magic number prepended to all confd queries. 
2393  # This allows us to distinguish different types of confd protocols and handle 
2394  # them. For example by changing this we can move the whole payload to be 
2395  # compressed, or move away from json. 
2396  CONFD_MAGIC_FOURCC = "plj0" 
2397   
2398  # By default a confd request is sent to the minimum between this number and all 
2399  # MCs. 6 was chosen because even in the case of a disastrous 50% response rate, 
2400  # we should have enough answers to be able to compare more than one. 
2401  CONFD_DEFAULT_REQ_COVERAGE = 6 
2402   
2403  # Timeout in seconds to expire pending query request in the confd client 
2404  # library. We don't actually expect any answer more than 10 seconds after we 
2405  # sent a request. 
2406  CONFD_CLIENT_EXPIRE_TIMEOUT = 10 
2407   
2408  # Maximum UDP datagram size. 
2409  # On IPv4: 64K - 20 (ip header size) - 8 (udp header size) = 65507 
2410  # On IPv6: 64K - 40 (ip6 header size) - 8 (udp header size) = 65487 
2411  #   (assuming we can't use jumbo frames) 
2412  # We just set this to 60K, which should be enough 
2413  MAX_UDP_DATA_SIZE = 61440 
2414   
2415  # User-id pool minimum/maximum acceptable user-ids. 
2416  UIDPOOL_UID_MIN = 0 
2417  UIDPOOL_UID_MAX = 2 ** 32 - 1 # Assuming 32 bit user-ids 
2418   
2419  # Name or path of the pgrep command 
2420  PGREP = "pgrep" 
2421   
2422  # Name of the node group that gets created at cluster init or upgrade 
2423  INITIAL_NODE_GROUP_NAME = "default" 
2424   
2425  # Possible values for NodeGroup.alloc_policy 
2426  ALLOC_POLICY_PREFERRED = "preferred" 
2427  ALLOC_POLICY_LAST_RESORT = "last_resort" 
2428  ALLOC_POLICY_UNALLOCABLE = "unallocable" 
2429  VALID_ALLOC_POLICIES = [ 
2430    ALLOC_POLICY_PREFERRED, 
2431    ALLOC_POLICY_LAST_RESORT, 
2432    ALLOC_POLICY_UNALLOCABLE, 
2433    ] 
2434   
2435  # Temporary external/shared storage parameters 
2436  BLOCKDEV_DRIVER_MANUAL = "manual" 
2437   
2438  # qemu-img path, required for ovfconverter 
2439  QEMUIMG_PATH = _autoconf.QEMUIMG_PATH 
2440   
2441  # Whether htools was enabled at compilation time 
2442  HTOOLS = _autoconf.HTOOLS 
2443  # The hail iallocator 
2444  IALLOC_HAIL = "hail" 
2445   
2446  # Fake opcodes for functions that have hooks attached to them via 
2447  # backend.RunLocalHooks 
2448  FAKE_OP_MASTER_TURNUP = "OP_CLUSTER_IP_TURNUP" 
2449  FAKE_OP_MASTER_TURNDOWN = "OP_CLUSTER_IP_TURNDOWN" 
2450   
2451  # SSH key types 
2452  SSHK_RSA = "rsa" 
2453  SSHK_DSA = "dsa" 
2454  SSHK_ALL = compat.UniqueFrozenset([SSHK_RSA, SSHK_DSA]) 
2455   
2456  # SSH authorized key types 
2457  SSHAK_RSA = "ssh-rsa" 
2458  SSHAK_DSS = "ssh-dss" 
2459  SSHAK_ALL = compat.UniqueFrozenset([SSHAK_RSA, SSHAK_DSS]) 
2460   
2461  # SSH setup 
2462  SSHS_CLUSTER_NAME = "cluster_name" 
2463  SSHS_SSH_HOST_KEY = "ssh_host_key" 
2464  SSHS_SSH_ROOT_KEY = "ssh_root_key" 
2465  SSHS_NODE_DAEMON_CERTIFICATE = "node_daemon_certificate" 
2466   
2467  #: Key files for SSH daemon 
2468  SSH_DAEMON_KEYFILES = { 
2469    SSHK_RSA: (pathutils.SSH_HOST_RSA_PRIV, pathutils.SSH_HOST_RSA_PUB), 
2470    SSHK_DSA: (pathutils.SSH_HOST_DSA_PRIV, pathutils.SSH_HOST_DSA_PUB), 
2471    } 
2472   
2473  # Node daemon setup 
2474  NDS_CLUSTER_NAME = "cluster_name" 
2475  NDS_NODE_DAEMON_CERTIFICATE = "node_daemon_certificate" 
2476  NDS_SSCONF = "ssconf" 
2477  NDS_START_NODE_DAEMON = "start_node_daemon" 
2478   
2479  # Path generating random UUID 
2480  RANDOM_UUID_FILE = "/proc/sys/kernel/random/uuid" 
2481   
2482  # Regex string for verifying a UUID 
2483  UUID_REGEX = "^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$" 
2484   
2485  # Auto-repair tag prefixes 
2486  AUTO_REPAIR_TAG_PREFIX = "ganeti:watcher:autorepair:" 
2487  AUTO_REPAIR_TAG_ENABLED = AUTO_REPAIR_TAG_PREFIX 
2488  AUTO_REPAIR_TAG_SUSPENDED = AUTO_REPAIR_TAG_ENABLED + "suspend:" 
2489  AUTO_REPAIR_TAG_PENDING = AUTO_REPAIR_TAG_PREFIX + "pending:" 
2490  AUTO_REPAIR_TAG_RESULT = AUTO_REPAIR_TAG_PREFIX + "result:" 
2491   
2492  # Auto-repair levels 
2493  AUTO_REPAIR_FIX_STORAGE = "fix-storage" 
2494  AUTO_REPAIR_MIGRATE = "migrate" 
2495  AUTO_REPAIR_FAILOVER = "failover" 
2496  AUTO_REPAIR_REINSTALL = "reinstall" 
2497  AUTO_REPAIR_ALL_TYPES = [ 
2498    AUTO_REPAIR_FIX_STORAGE, 
2499    AUTO_REPAIR_MIGRATE, 
2500    AUTO_REPAIR_FAILOVER, 
2501    AUTO_REPAIR_REINSTALL, 
2502  ] 
2503   
2504  # Auto-repair results 
2505  AUTO_REPAIR_SUCCESS = "success" 
2506  AUTO_REPAIR_FAILURE = "failure" 
2507  AUTO_REPAIR_ENOPERM = "enoperm" 
2508  AUTO_REPAIR_ALL_RESULTS = frozenset([ 
2509      AUTO_REPAIR_SUCCESS, 
2510      AUTO_REPAIR_FAILURE, 
2511      AUTO_REPAIR_ENOPERM, 
2512  ]) 
2513   
2514  # The version identifier for builtin data collectors 
2515  BUILTIN_DATA_COLLECTOR_VERSION = "B" 
2516   
2517  # The reason trail opcode parameter name 
2518  OPCODE_REASON = "reason" 
2519   
2520  # The source reasons for the execution of an OpCode 
2521  OPCODE_REASON_SRC_CLIENT = "gnt:client" 
2522  OPCODE_REASON_SRC_NODED = "gnt:daemon:noded" 
2523  OPCODE_REASON_SRC_OPCODE = "gnt:opcode" 
2524  OPCODE_REASON_SRC_RLIB2 = "gnt:library:rlib2" 
2525  OPCODE_REASON_SRC_USER = "gnt:user" 
2526   
2527  OPCODE_REASON_SOURCES = compat.UniqueFrozenset([ 
2528    OPCODE_REASON_SRC_CLIENT, 
2529    OPCODE_REASON_SRC_NODED, 
2530    OPCODE_REASON_SRC_OPCODE, 
2531    OPCODE_REASON_SRC_RLIB2, 
2532    OPCODE_REASON_SRC_USER, 
2533    ]) 
2534   
2535  DISKSTATS_FILE = "/proc/diskstats" 
2536   
2537  # Do not re-export imported modules 
2538  del re, _vcsversion, _autoconf, socket, pathutils, compat 
2539

   Trees       Indices       Help   
Ganeti
Generated by Epydoc 3.0.1 on Wed Dec 30 13:42:56 2015 http://epydoc.sourceforge.net