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#
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#
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# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""Module holding different constants."""
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import re
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from ganeti import _autoconf
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from ganeti import _vcsversion
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# various versions
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RELEASE_VERSION = _autoconf.PACKAGE_VERSION
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OS_API_V10 = 10
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OS_API_V15 = 15
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OS_API_V20 = 20
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OS_API_VERSIONS = frozenset([OS_API_V10, OS_API_V15, OS_API_V20])
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VCS_VERSION = _vcsversion.VCS_VERSION
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EXPORT_VERSION = 0
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RAPI_VERSION = 2
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# Format for CONFIG_VERSION:
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#   01 03 0123 = 01030123
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#   ^^ ^^ ^^^^
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#   |  |  + Configuration version/revision
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#   |  + Minor version
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#   + Major version
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#
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# It stored as an integer. Make sure not to write an octal number.
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# BuildVersion and SplitVersion must be in here because we can't import other
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# modules. The cfgupgrade tool must be able to read and write version numbers
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# and thus requires these functions. To avoid code duplication, they're kept in
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# here.
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def BuildVersion(major, minor, revision):
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  """Calculates int version number from major, minor and revision numbers.
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  Returns: int representing version number
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  """
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  assert isinstance(major, int)
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  assert isinstance(minor, int)
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  assert isinstance(revision, int)
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  return (1000000 * major +
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            10000 * minor +
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                1 * revision)
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def SplitVersion(version):
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  """Splits version number stored in an int.
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  Returns: tuple; (major, minor, revision)
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  """
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  assert isinstance(version, int)
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  (major, remainder) = divmod(version, 1000000)
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  (minor, revision) = divmod(remainder, 10000)
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  return (major, minor, revision)
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CONFIG_MAJOR = int(_autoconf.VERSION_MAJOR)
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CONFIG_MINOR = int(_autoconf.VERSION_MINOR)
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CONFIG_REVISION = 0
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CONFIG_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, CONFIG_REVISION)
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#: RPC protocol version
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PROTOCOL_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, 0)
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# user separation
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DAEMONS_GROUP = _autoconf.DAEMONS_GROUP
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ADMIN_GROUP = _autoconf.ADMIN_GROUP
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MASTERD_USER = _autoconf.MASTERD_USER
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MASTERD_GROUP = _autoconf.MASTERD_GROUP
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RAPI_USER = _autoconf.RAPI_USER
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RAPI_GROUP = _autoconf.RAPI_GROUP
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CONFD_USER = _autoconf.CONFD_USER
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CONFD_GROUP = _autoconf.CONFD_GROUP
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NODED_USER = _autoconf.NODED_USER
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NODED_GROUP = _autoconf.NODED_GROUP
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# cpu pinning separators and constants
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CPU_PINNING_SEP = ":"
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CPU_PINNING_ALL = "all"
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# internal representation of "all"
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CPU_PINNING_ALL_VAL = -1
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# one "all" entry in a CPU list means CPU pinning is off
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CPU_PINNING_OFF = [CPU_PINNING_ALL_VAL]
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# A Xen-specific implementation detail - there is no way to actually say
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# "use any cpu for pinning" in a Xen configuration file, as opposed to the
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# command line, where you can say "xm vcpu-pin <domain> <vcpu> all".
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# The workaround used in Xen is "0-63" (see source code function
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# xm_vcpu_pin in <xen-source>/tools/python/xen/xm/main.py).
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# To support future changes, the following constant is treated as a
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# blackbox string that simply means use-any-cpu-for-pinning-under-xen.
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CPU_PINNING_ALL_XEN = "0-63"
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# A KVM-specific implementation detail - the following value is used
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# to set CPU affinity to all processors (#0 through #31), per taskset
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# man page.
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CPU_PINNING_ALL_KVM = 0xFFFFFFFF
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# Wipe
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DD_CMD = "dd"
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WIPE_BLOCK_SIZE = 1024 ** 2
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MAX_WIPE_CHUNK = 1024 # 1GB
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MIN_WIPE_CHUNK_PERCENT = 10
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# file paths
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DATA_DIR = _autoconf.LOCALSTATEDIR + "/lib/ganeti"
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RUN_DIR = _autoconf.LOCALSTATEDIR + "/run"
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RUN_GANETI_DIR = RUN_DIR + "/ganeti"
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BDEV_CACHE_DIR = RUN_GANETI_DIR + "/bdev-cache"
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DISK_LINKS_DIR = RUN_GANETI_DIR + "/instance-disks"
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RUN_DIRS_MODE = 0775
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SOCKET_DIR = RUN_GANETI_DIR + "/socket"
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SECURE_DIR_MODE = 0700
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SECURE_FILE_MODE = 0600
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SOCKET_DIR_MODE = 0750
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CRYPTO_KEYS_DIR = RUN_GANETI_DIR + "/crypto"
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CRYPTO_KEYS_DIR_MODE = SECURE_DIR_MODE
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IMPORT_EXPORT_DIR = RUN_GANETI_DIR + "/import-export"
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IMPORT_EXPORT_DIR_MODE = 0755
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ADOPTABLE_BLOCKDEV_ROOT = "/dev/disk/"
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# keep RUN_GANETI_DIR first here, to make sure all get created when the node
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# daemon is started (this takes care of RUN_DIR being tmpfs)
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SUB_RUN_DIRS = [
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  RUN_GANETI_DIR,
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  BDEV_CACHE_DIR,
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  DISK_LINKS_DIR,
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  ]
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LOCK_DIR = _autoconf.LOCALSTATEDIR + "/lock"
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SSCONF_LOCK_FILE = LOCK_DIR + "/ganeti-ssconf.lock"
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# User-id pool lock directory
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# The user-ids that are in use have a corresponding lock file in this directory
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UIDPOOL_LOCKDIR = RUN_GANETI_DIR + "/uid-pool"
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CLUSTER_CONF_FILE = DATA_DIR + "/config.data"
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NODED_CERT_FILE = DATA_DIR + "/server.pem"
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RAPI_CERT_FILE = DATA_DIR + "/rapi.pem"
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CONFD_HMAC_KEY = DATA_DIR + "/hmac.key"
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SPICE_CERT_FILE = DATA_DIR + "/spice.pem"
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SPICE_CACERT_FILE = DATA_DIR + "/spice-ca.pem"
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CLUSTER_DOMAIN_SECRET_FILE = DATA_DIR + "/cluster-domain-secret"
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INSTANCE_STATUS_FILE = RUN_GANETI_DIR + "/instance-status"
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SSH_KNOWN_HOSTS_FILE = DATA_DIR + "/known_hosts"
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RAPI_USERS_FILE = DATA_DIR + "/rapi/users"
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QUEUE_DIR = DATA_DIR + "/queue"
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DAEMON_UTIL = _autoconf.PKGLIBDIR + "/daemon-util"
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SETUP_SSH = _autoconf.TOOLSDIR + "/setup-ssh"
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KVM_IFUP = _autoconf.PKGLIBDIR + "/kvm-ifup"
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KVM_CONSOLE_WRAPPER = _autoconf.PKGLIBDIR + "/tools/kvm-console-wrapper"
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XM_CONSOLE_WRAPPER = _autoconf.PKGLIBDIR + "/tools/xm-console-wrapper"
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ETC_HOSTS = "/etc/hosts"
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DEFAULT_FILE_STORAGE_DIR = _autoconf.FILE_STORAGE_DIR
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DEFAULT_SHARED_FILE_STORAGE_DIR = _autoconf.SHARED_FILE_STORAGE_DIR
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ENABLE_FILE_STORAGE = _autoconf.ENABLE_FILE_STORAGE
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ENABLE_SHARED_FILE_STORAGE = _autoconf.ENABLE_SHARED_FILE_STORAGE
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SYSCONFDIR = _autoconf.SYSCONFDIR
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TOOLSDIR = _autoconf.TOOLSDIR
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CONF_DIR = SYSCONFDIR + "/ganeti"
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USER_SCRIPTS_DIR = CONF_DIR + "/scripts"
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ENABLE_CONFD = _autoconf.ENABLE_CONFD
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#: Lock file for watcher, locked in shared mode by watcher; lock in exclusive
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# mode to block watcher (see L{cli._RunWhileClusterStoppedHelper.Call}
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WATCHER_LOCK_FILE = LOCK_DIR + "/ganeti-watcher.lock"
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#: Status file for per-group watcher, locked in exclusive mode by watcher
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WATCHER_GROUP_STATE_FILE = DATA_DIR + "/watcher.%s.data"
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#: File for per-group instance status, merged into L{INSTANCE_STATUS_FILE} by
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#: per-group processes
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WATCHER_GROUP_INSTANCE_STATUS_FILE = DATA_DIR + "/watcher.%s.instance-status"
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#: File containing Unix timestamp until which watcher should be paused
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WATCHER_PAUSEFILE = DATA_DIR + "/watcher.pause"
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# Master IP address setup scripts paths (default and user-provided)
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DEFAULT_MASTER_SETUP_SCRIPT = TOOLSDIR + "/master-ip-setup"
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EXTERNAL_MASTER_SETUP_SCRIPT = USER_SCRIPTS_DIR + "/master-ip-setup"
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ALL_CERT_FILES = frozenset([
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  NODED_CERT_FILE,
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  RAPI_CERT_FILE,
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  SPICE_CERT_FILE,
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  SPICE_CACERT_FILE,
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  ])
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MASTER_SOCKET = SOCKET_DIR + "/ganeti-master"
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NODED = "ganeti-noded"
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CONFD = "ganeti-confd"
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RAPI = "ganeti-rapi"
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MASTERD = "ganeti-masterd"
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# used in the ganeti-nbma project
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NLD = "ganeti-nld"
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DAEMONS_PORTS = {
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  # daemon-name: ("proto", "default-port")
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  NODED: ("tcp", 1811),
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  CONFD: ("udp", 1814),
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  RAPI: ("tcp", 5080),
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  "ssh": ("tcp", 22),
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  # used in the ganeti-nbma project
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  NLD: ("udp", 1816),
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}
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DEFAULT_NODED_PORT = DAEMONS_PORTS[NODED][1]
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DEFAULT_CONFD_PORT = DAEMONS_PORTS[CONFD][1]
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DEFAULT_RAPI_PORT = DAEMONS_PORTS[RAPI][1]
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# used in the ganeti-nbma project
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DEFAULT_NLD_PORT = DAEMONS_PORTS[NLD][1]
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FIRST_DRBD_PORT = 11000
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LAST_DRBD_PORT = 14999
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MASTER_SCRIPT = "ganeti-master"
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LOG_DIR = _autoconf.LOCALSTATEDIR + "/log/ganeti/"
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DAEMONS_LOGFILES = {
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  # "daemon-name": "logfile"
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  NODED: LOG_DIR + "node-daemon.log",
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  CONFD: LOG_DIR + "conf-daemon.log",
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  RAPI: LOG_DIR + "rapi-daemon.log",
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  MASTERD: LOG_DIR + "master-daemon.log",
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  # used in the ganeti-nbma project
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  NLD: LOG_DIR + "nl-daemon.log",
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  }
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LOG_OS_DIR = LOG_DIR + "os"
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LOG_WATCHER = LOG_DIR + "watcher.log"
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LOG_COMMANDS = LOG_DIR + "commands.log"
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LOG_BURNIN = LOG_DIR + "burnin.log"
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LOG_SETUP_SSH = LOG_DIR + "setup-ssh.log"
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DEV_CONSOLE = "/dev/console"
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PROC_MOUNTS = "/proc/mounts"
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# Local UniX Interface related constants
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LUXI_EOM = "\3"
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LUXI_VERSION = CONFIG_VERSION
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# one of "no", "yes", "only"
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SYSLOG_USAGE = _autoconf.SYSLOG_USAGE
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SYSLOG_NO = "no"
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SYSLOG_YES = "yes"
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SYSLOG_ONLY = "only"
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SYSLOG_SOCKET = "/dev/log"
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OS_SEARCH_PATH = _autoconf.OS_SEARCH_PATH
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EXPORT_DIR = _autoconf.EXPORT_DIR
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EXPORT_CONF_FILE = "config.ini"
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XEN_BOOTLOADER = _autoconf.XEN_BOOTLOADER
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XEN_KERNEL = _autoconf.XEN_KERNEL
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XEN_INITRD = _autoconf.XEN_INITRD
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XEN_CMD = "xm"
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KVM_PATH = _autoconf.KVM_PATH
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SOCAT_PATH = _autoconf.SOCAT_PATH
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SOCAT_USE_ESCAPE = _autoconf.SOCAT_USE_ESCAPE
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SOCAT_USE_COMPRESS = _autoconf.SOCAT_USE_COMPRESS
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SOCAT_ESCAPE_CODE = "0x1d"
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#: Console as SSH command
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CONS_SSH = "ssh"
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#: Console as VNC server
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CONS_VNC = "vnc"
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#: Console as SPICE server
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CONS_SPICE = "spice"
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#: Display a message for console access
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CONS_MESSAGE = "msg"
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#: All console types
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CONS_ALL = frozenset([CONS_SSH, CONS_VNC, CONS_SPICE, CONS_MESSAGE])
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# For RSA keys more bits are better, but they also make operations more
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# expensive. NIST SP 800-131 recommends a minimum of 2048 bits from the year
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# 2010 on.
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RSA_KEY_BITS = 2048
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# Ciphers allowed for SSL connections. For the format, see ciphers(1). A better
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# way to disable ciphers would be to use the exclamation mark (!), but socat
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# versions below 1.5 can't parse exclamation marks in options properly. When
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# modifying the ciphers, ensure not to accidentially add something after it's
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# been removed. Use the "openssl" utility to check the allowed ciphers, e.g.
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# "openssl ciphers -v HIGH:-DES".
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OPENSSL_CIPHERS = "HIGH:-DES:-3DES:-EXPORT:-ADH"
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# Digest used to sign certificates ("openssl x509" uses SHA1 by default)
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X509_CERT_SIGN_DIGEST = "SHA1"
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# Default validity of certificates in days
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X509_CERT_DEFAULT_VALIDITY = 365 * 5
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# commonName (CN) used in certificates
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X509_CERT_CN = "ganeti.example.com"
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X509_CERT_SIGNATURE_HEADER = "X-Ganeti-Signature"
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IMPORT_EXPORT_DAEMON = _autoconf.PKGLIBDIR + "/import-export"
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# Import/export daemon mode
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IEM_IMPORT = "import"
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IEM_EXPORT = "export"
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# Import/export transport compression
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IEC_NONE = "none"
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IEC_GZIP = "gzip"
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IEC_ALL = frozenset([
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  IEC_NONE,
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  IEC_GZIP,
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  ])
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IE_CUSTOM_SIZE = "fd"
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IE_MAGIC_RE = re.compile(r"^[-_.a-zA-Z0-9]{5,100}$")
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# Import/export I/O
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# Direct file I/O, equivalent to a shell's I/O redirection using '<' or '>'
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IEIO_FILE = "file"
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# Raw block device I/O using "dd"
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IEIO_RAW_DISK = "raw"
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# OS definition import/export script
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IEIO_SCRIPT = "script"
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VALUE_DEFAULT = "default"
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VALUE_AUTO = "auto"
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VALUE_GENERATE = "generate"
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VALUE_NONE = "none"
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VALUE_TRUE = "true"
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VALUE_FALSE = "false"
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# External script validation mask
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EXT_PLUGIN_MASK = re.compile("^[a-zA-Z0-9_-]+$")
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# hooks-related constants
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HOOKS_BASE_DIR = CONF_DIR + "/hooks"
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HOOKS_PHASE_PRE = "pre"
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HOOKS_PHASE_POST = "post"
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HOOKS_NAME_CFGUPDATE = "config-update"
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HOOKS_NAME_WATCHER = "watcher"
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HOOKS_VERSION = 2
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HOOKS_PATH = "/sbin:/bin:/usr/sbin:/usr/bin"
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# hooks subject type (what object type does the LU deal with)
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HTYPE_CLUSTER = "CLUSTER"
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HTYPE_NODE = "NODE"
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HTYPE_GROUP = "GROUP"
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HTYPE_INSTANCE = "INSTANCE"
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HKR_SKIP = 0
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HKR_FAIL = 1
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HKR_SUCCESS = 2
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# Storage types
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ST_FILE = "file"
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ST_LVM_PV = "lvm-pv"
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ST_LVM_VG = "lvm-vg"
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# Storage fields
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# first two are valid in LU context only, not passed to backend
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SF_NODE = "node"
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SF_TYPE = "type"
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# and the rest are valid in backend
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SF_NAME = "name"
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SF_SIZE = "size"
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SF_FREE = "free"
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SF_USED = "used"
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SF_ALLOCATABLE = "allocatable"
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# Storage operations
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SO_FIX_CONSISTENCY = "fix-consistency"
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# Available fields per storage type
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VALID_STORAGE_FIELDS = frozenset([
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  SF_NAME,
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  SF_TYPE,
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  SF_SIZE,
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  SF_USED,
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  SF_FREE,
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  SF_ALLOCATABLE
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  ])
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VALID_STORAGE_TYPES = frozenset([ST_FILE, ST_LVM_PV, ST_LVM_VG])
411

    
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MODIFIABLE_STORAGE_FIELDS = {
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  ST_LVM_PV: frozenset([SF_ALLOCATABLE]),
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  }
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VALID_STORAGE_OPERATIONS = {
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  ST_LVM_VG: frozenset([SO_FIX_CONSISTENCY]),
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  }
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# Local disk status
421
# Note: Code depends on LDS_OKAY < LDS_UNKNOWN < LDS_FAULTY
422
(LDS_OKAY,
423
 LDS_UNKNOWN,
424
 LDS_FAULTY) = range(1, 4)
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# disk template types
427
DT_DISKLESS = "diskless"
428
DT_PLAIN = "plain"
429
DT_DRBD8 = "drbd"
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DT_FILE = "file"
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DT_SHARED_FILE = "sharedfile"
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DT_BLOCK = "blockdev"
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DT_RBD = "rbd"
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# the set of network-mirrored disk templates
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DTS_INT_MIRROR = frozenset([DT_DRBD8])
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# the set of externally-mirrored disk templates (e.g. SAN, NAS)
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DTS_EXT_MIRROR = frozenset([DT_SHARED_FILE, DT_BLOCK, DT_RBD])
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# the set of non-lvm-based disk templates
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DTS_NOT_LVM = frozenset([DT_DISKLESS, DT_FILE, DT_SHARED_FILE,
443
                         DT_BLOCK, DT_RBD])
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# the set of disk templates which can be grown
446
DTS_GROWABLE = frozenset([DT_PLAIN, DT_DRBD8, DT_FILE, DT_SHARED_FILE, DT_RBD])
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# the set of disk templates that allow adoption
449
DTS_MAY_ADOPT = frozenset([DT_PLAIN, DT_BLOCK])
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451
# the set of disk templates that *must* use adoption
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DTS_MUST_ADOPT = frozenset([DT_BLOCK])
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454
# the set of disk templates that allow migrations
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DTS_MIRRORED = frozenset.union(DTS_INT_MIRROR, DTS_EXT_MIRROR)
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# the set of file based disk templates
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DTS_FILEBASED = frozenset([DT_FILE, DT_SHARED_FILE])
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460
# logical disk types
461
LD_LV = "lvm"
462
LD_DRBD8 = "drbd8"
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LD_FILE = "file"
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LD_BLOCKDEV = "blockdev"
465
LD_RBD = "rbd"
466
LOGICAL_DISK_TYPES = frozenset([
467
  LD_LV,
468
  LD_DRBD8,
469
  LD_FILE,
470
  LD_BLOCKDEV,
471
  LD_RBD,
472
  ])
473

    
474
LDS_BLOCK = frozenset([LD_LV, LD_DRBD8, LD_BLOCKDEV, LD_RBD])
475

    
476
# drbd constants
477
DRBD_HMAC_ALG = "md5"
478
DRBD_NET_PROTOCOL = "C"
479

    
480
# drbd barrier types
481
DRBD_B_NONE = "n"
482
DRBD_B_DISK_BARRIERS = "b"
483
DRBD_B_DISK_DRAIN = "d"
484
DRBD_B_DISK_FLUSH = "f"
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486
# Valid barrier combinations: "n" or any non-null subset of "bfd"
487
DRBD_VALID_BARRIER_OPT = frozenset([
488
  frozenset([DRBD_B_NONE]),
489
  frozenset([DRBD_B_DISK_BARRIERS]),
490
  frozenset([DRBD_B_DISK_DRAIN]),
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  frozenset([DRBD_B_DISK_FLUSH]),
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  frozenset([DRBD_B_DISK_DRAIN, DRBD_B_DISK_FLUSH]),
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  frozenset([DRBD_B_DISK_DRAIN, DRBD_B_DISK_FLUSH]),
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  frozenset([DRBD_B_DISK_BARRIERS, DRBD_B_DISK_DRAIN]),
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  frozenset([DRBD_B_DISK_BARRIERS, DRBD_B_DISK_FLUSH]),
496
  frozenset([DRBD_B_DISK_BARRIERS, DRBD_B_DISK_FLUSH, DRBD_B_DISK_DRAIN]),
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  ])
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# rbd tool command
500
RBD_CMD = "rbd"
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502
# file backend driver
503
FD_LOOP = "loop"
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FD_BLKTAP = "blktap"
505

    
506
# the set of drbd-like disk types
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LDS_DRBD = frozenset([LD_DRBD8])
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# disk access mode
510
DISK_RDONLY = "ro"
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DISK_RDWR = "rw"
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DISK_ACCESS_SET = frozenset([DISK_RDONLY, DISK_RDWR])
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# disk replacement mode
515
REPLACE_DISK_PRI = "replace_on_primary"    # replace disks on primary
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REPLACE_DISK_SEC = "replace_on_secondary"  # replace disks on secondary
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REPLACE_DISK_CHG = "replace_new_secondary" # change secondary node
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REPLACE_DISK_AUTO = "replace_auto"
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REPLACE_MODES = frozenset([
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  REPLACE_DISK_PRI,
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  REPLACE_DISK_SEC,
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  REPLACE_DISK_CHG,
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  REPLACE_DISK_AUTO,
524
  ])
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# Instance export mode
527
EXPORT_MODE_LOCAL = "local"
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EXPORT_MODE_REMOTE = "remote"
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EXPORT_MODES = frozenset([
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  EXPORT_MODE_LOCAL,
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  EXPORT_MODE_REMOTE,
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  ])
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534
# Lock recalculate mode
535
LOCKS_REPLACE = "replace"
536
LOCKS_APPEND = "append"
537

    
538
# Lock timeout (sum) before we should go into blocking acquire (still
539
# can be reset by priority change); computed as max time (10 hours)
540
# before we should actually go into blocking acquire given that we
541
# start from default priority level; in seconds
542
LOCK_ATTEMPTS_TIMEOUT = 10 * 3600 / 20.0
543
LOCK_ATTEMPTS_MAXWAIT = 15.0
544
LOCK_ATTEMPTS_MINWAIT = 1.0
545

    
546
# instance creation modes
547
INSTANCE_CREATE = "create"
548
INSTANCE_IMPORT = "import"
549
INSTANCE_REMOTE_IMPORT = "remote-import"
550
INSTANCE_CREATE_MODES = frozenset([
551
  INSTANCE_CREATE,
552
  INSTANCE_IMPORT,
553
  INSTANCE_REMOTE_IMPORT,
554
  ])
555

    
556
# Remote import/export handshake message and version
557
RIE_VERSION = 0
558
RIE_HANDSHAKE = "Hi, I'm Ganeti"
559

    
560
# Remote import/export certificate validity in seconds
561
RIE_CERT_VALIDITY = 24 * 60 * 60
562

    
563
# Overall timeout for establishing connection
564
RIE_CONNECT_TIMEOUT = 180
565

    
566
# Export only: how long to wait per connection attempt (seconds)
567
RIE_CONNECT_ATTEMPT_TIMEOUT = 20
568

    
569
# Export only: number of attempts to connect
570
RIE_CONNECT_RETRIES = 10
571

    
572
#: Give child process up to 5 seconds to exit after sending a signal
573
CHILD_LINGER_TIMEOUT = 5.0
574

    
575
DISK_TEMPLATES = frozenset([
576
  DT_DISKLESS,
577
  DT_PLAIN,
578
  DT_DRBD8,
579
  DT_FILE,
580
  DT_SHARED_FILE,
581
  DT_BLOCK,
582
  DT_RBD
583
  ])
584

    
585
FILE_DRIVER = frozenset([FD_LOOP, FD_BLKTAP])
586

    
587
# import/export config options
588
INISECT_EXP = "export"
589
INISECT_INS = "instance"
590
INISECT_HYP = "hypervisor"
591
INISECT_BEP = "backend"
592
INISECT_OSP = "os"
593

    
594
# dynamic device modification
595
DDM_ADD = "add"
596
DDM_MODIFY = "modify"
597
DDM_REMOVE = "remove"
598
DDMS_VALUES = frozenset([DDM_ADD, DDM_REMOVE])
599
DDMS_VALUES_WITH_MODIFY = (DDMS_VALUES | frozenset([
600
  DDM_MODIFY,
601
  ]))
602
# TODO: DDM_SWAP, DDM_MOVE?
603

    
604
# common exit codes
605
EXIT_SUCCESS = 0
606
EXIT_FAILURE = 1
607
EXIT_NOTCLUSTER = 5
608
EXIT_NOTMASTER = 11
609
EXIT_NODESETUP_ERROR = 12
610
EXIT_CONFIRMATION = 13 # need user confirmation
611

    
612
#: Exit code for query operations with unknown fields
613
EXIT_UNKNOWN_FIELD = 14
614

    
615
# tags
616
TAG_CLUSTER = "cluster"
617
TAG_NODEGROUP = "nodegroup"
618
TAG_NODE = "node"
619
TAG_INSTANCE = "instance"
620
VALID_TAG_TYPES = frozenset([
621
  TAG_CLUSTER,
622
  TAG_NODEGROUP,
623
  TAG_NODE,
624
  TAG_INSTANCE,
625
  ])
626
MAX_TAG_LEN = 128
627
MAX_TAGS_PER_OBJ = 4096
628

    
629
# others
630
DEFAULT_BRIDGE = "xen-br0"
631
CLASSIC_DRBD_SYNC_SPEED = 60 * 1024  # 60 MiB, expressed in KiB
632
IP4_ADDRESS_LOCALHOST = "127.0.0.1"
633
IP4_ADDRESS_ANY = "0.0.0.0"
634
IP6_ADDRESS_LOCALHOST = "::1"
635
IP6_ADDRESS_ANY = "::"
636
IP4_VERSION = 4
637
IP6_VERSION = 6
638
VALID_IP_VERSIONS = frozenset([IP4_VERSION, IP6_VERSION])
639
TCP_PING_TIMEOUT = 10
640
GANETI_RUNAS = "root"
641
DEFAULT_VG = "xenvg"
642
DEFAULT_DRBD_HELPER = "/bin/true"
643
MIN_VG_SIZE = 20480
644
DEFAULT_MAC_PREFIX = "aa:00:00"
645
# default maximum instance wait time, in seconds.
646
DEFAULT_SHUTDOWN_TIMEOUT = 120
647
NODE_MAX_CLOCK_SKEW = 150
648
# Time for an intra-cluster disk transfer to wait for a connection
649
DISK_TRANSFER_CONNECT_TIMEOUT = 60
650
# Disk index separator
651
DISK_SEPARATOR = _autoconf.DISK_SEPARATOR
652
IP_COMMAND_PATH = _autoconf.IP_PATH
653

    
654
#: Key for job IDs in opcode result
655
JOB_IDS_KEY = "jobs"
656

    
657
# runparts results
658
(RUNPARTS_SKIP,
659
 RUNPARTS_RUN,
660
 RUNPARTS_ERR) = range(3)
661

    
662
RUNPARTS_STATUS = frozenset([RUNPARTS_SKIP, RUNPARTS_RUN, RUNPARTS_ERR])
663

    
664
# RPC constants
665
(RPC_ENCODING_NONE,
666
 RPC_ENCODING_ZLIB_BASE64) = range(2)
667

    
668
# os related constants
669
OS_SCRIPT_CREATE = "create"
670
OS_SCRIPT_IMPORT = "import"
671
OS_SCRIPT_EXPORT = "export"
672
OS_SCRIPT_RENAME = "rename"
673
OS_SCRIPT_VERIFY = "verify"
674
OS_SCRIPTS = frozenset([
675
  OS_SCRIPT_CREATE,
676
  OS_SCRIPT_IMPORT,
677
  OS_SCRIPT_EXPORT,
678
  OS_SCRIPT_RENAME,
679
  OS_SCRIPT_VERIFY
680
  ])
681

    
682
OS_API_FILE = "ganeti_api_version"
683
OS_VARIANTS_FILE = "variants.list"
684
OS_PARAMETERS_FILE = "parameters.list"
685

    
686
OS_VALIDATE_PARAMETERS = "parameters"
687
OS_VALIDATE_CALLS = frozenset([OS_VALIDATE_PARAMETERS])
688

    
689
# ssh constants
690
SSH_CONFIG_DIR = _autoconf.SSH_CONFIG_DIR
691
SSH_HOST_DSA_PRIV = SSH_CONFIG_DIR + "/ssh_host_dsa_key"
692
SSH_HOST_DSA_PUB = SSH_HOST_DSA_PRIV + ".pub"
693
SSH_HOST_RSA_PRIV = SSH_CONFIG_DIR + "/ssh_host_rsa_key"
694
SSH_HOST_RSA_PUB = SSH_HOST_RSA_PRIV + ".pub"
695
SSH = "ssh"
696
SCP = "scp"
697

    
698
# reboot types
699
INSTANCE_REBOOT_SOFT = "soft"
700
INSTANCE_REBOOT_HARD = "hard"
701
INSTANCE_REBOOT_FULL = "full"
702

    
703
REBOOT_TYPES = frozenset([
704
  INSTANCE_REBOOT_SOFT,
705
  INSTANCE_REBOOT_HARD,
706
  INSTANCE_REBOOT_FULL
707
  ])
708

    
709
# instance reboot behaviors
710
INSTANCE_REBOOT_ALLOWED = "reboot"
711
INSTANCE_REBOOT_EXIT = "exit"
712

    
713
REBOOT_BEHAVIORS = frozenset([
714
  INSTANCE_REBOOT_ALLOWED,
715
  INSTANCE_REBOOT_EXIT
716
  ])
717

    
718
VTYPE_STRING = "string"
719
VTYPE_MAYBE_STRING = "maybe-string"
720
VTYPE_BOOL = "bool"
721
VTYPE_SIZE = "size" # size, in MiBs
722
VTYPE_INT = "int"
723
ENFORCEABLE_TYPES = frozenset([
724
  VTYPE_STRING,
725
  VTYPE_MAYBE_STRING,
726
  VTYPE_BOOL,
727
  VTYPE_SIZE,
728
  VTYPE_INT,
729
  ])
730

    
731
# Constant representing that the user does not specify any IP version
732
IFACE_NO_IP_VERSION_SPECIFIED = 0
733

    
734
# HV parameter names (global namespace)
735
HV_BOOT_ORDER = "boot_order"
736
HV_CDROM_IMAGE_PATH = "cdrom_image_path"
737
HV_KVM_CDROM2_IMAGE_PATH = "cdrom2_image_path"
738
HV_KVM_FLOPPY_IMAGE_PATH = "floppy_image_path"
739
HV_NIC_TYPE = "nic_type"
740
HV_DISK_TYPE = "disk_type"
741
HV_KVM_CDROM_DISK_TYPE = "cdrom_disk_type"
742
HV_VNC_BIND_ADDRESS = "vnc_bind_address"
743
HV_VNC_PASSWORD_FILE = "vnc_password_file"
744
HV_VNC_TLS = "vnc_tls"
745
HV_VNC_X509 = "vnc_x509_path"
746
HV_VNC_X509_VERIFY = "vnc_x509_verify"
747
HV_KVM_SPICE_BIND = "spice_bind"
748
HV_KVM_SPICE_IP_VERSION = "spice_ip_version"
749
HV_KVM_SPICE_PASSWORD_FILE = "spice_password_file"
750
HV_KVM_SPICE_LOSSLESS_IMG_COMPR = "spice_image_compression"
751
HV_KVM_SPICE_JPEG_IMG_COMPR = "spice_jpeg_wan_compression"
752
HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR = "spice_zlib_glz_wan_compression"
753
HV_KVM_SPICE_STREAMING_VIDEO_DETECTION = "spice_streaming_video"
754
HV_KVM_SPICE_AUDIO_COMPR = "spice_playback_compression"
755
HV_KVM_SPICE_USE_TLS = "spice_use_tls"
756
HV_KVM_SPICE_TLS_CIPHERS = "spice_tls_ciphers"
757
HV_KVM_SPICE_USE_VDAGENT = "spice_use_vdagent"
758
HV_ACPI = "acpi"
759
HV_PAE = "pae"
760
HV_USE_BOOTLOADER = "use_bootloader"
761
HV_BOOTLOADER_ARGS = "bootloader_args"
762
HV_BOOTLOADER_PATH = "bootloader_path"
763
HV_KERNEL_ARGS = "kernel_args"
764
HV_KERNEL_PATH = "kernel_path"
765
HV_INITRD_PATH = "initrd_path"
766
HV_ROOT_PATH = "root_path"
767
HV_SERIAL_CONSOLE = "serial_console"
768
HV_USB_MOUSE = "usb_mouse"
769
HV_KEYMAP = "keymap"
770
HV_DEVICE_MODEL = "device_model"
771
HV_INIT_SCRIPT = "init_script"
772
HV_MIGRATION_PORT = "migration_port"
773
HV_MIGRATION_BANDWIDTH = "migration_bandwidth"
774
HV_MIGRATION_DOWNTIME = "migration_downtime"
775
HV_MIGRATION_MODE = "migration_mode"
776
HV_USE_LOCALTIME = "use_localtime"
777
HV_DISK_CACHE = "disk_cache"
778
HV_SECURITY_MODEL = "security_model"
779
HV_SECURITY_DOMAIN = "security_domain"
780
HV_KVM_FLAG = "kvm_flag"
781
HV_VHOST_NET = "vhost_net"
782
HV_KVM_USE_CHROOT = "use_chroot"
783
HV_CPU_MASK = "cpu_mask"
784
HV_MEM_PATH = "mem_path"
785
HV_BLOCKDEV_PREFIX = "blockdev_prefix"
786
HV_REBOOT_BEHAVIOR = "reboot_behavior"
787

    
788
HVS_PARAMETER_TYPES = {
789
  HV_BOOT_ORDER: VTYPE_STRING,
790
  HV_KVM_FLOPPY_IMAGE_PATH: VTYPE_STRING,
791
  HV_CDROM_IMAGE_PATH: VTYPE_STRING,
792
  HV_KVM_CDROM2_IMAGE_PATH: VTYPE_STRING,
793
  HV_NIC_TYPE: VTYPE_STRING,
794
  HV_DISK_TYPE: VTYPE_STRING,
795
  HV_KVM_CDROM_DISK_TYPE: VTYPE_STRING,
796
  HV_VNC_PASSWORD_FILE: VTYPE_STRING,
797
  HV_VNC_BIND_ADDRESS: VTYPE_STRING,
798
  HV_VNC_TLS: VTYPE_BOOL,
799
  HV_VNC_X509: VTYPE_STRING,
800
  HV_VNC_X509_VERIFY: VTYPE_BOOL,
801
  HV_KVM_SPICE_BIND: VTYPE_STRING,
802
  HV_KVM_SPICE_IP_VERSION: VTYPE_INT,
803
  HV_KVM_SPICE_PASSWORD_FILE: VTYPE_STRING,
804
  HV_KVM_SPICE_LOSSLESS_IMG_COMPR: VTYPE_STRING,
805
  HV_KVM_SPICE_JPEG_IMG_COMPR: VTYPE_STRING,
806
  HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR: VTYPE_STRING,
807
  HV_KVM_SPICE_STREAMING_VIDEO_DETECTION: VTYPE_STRING,
808
  HV_KVM_SPICE_AUDIO_COMPR: VTYPE_BOOL,
809
  HV_KVM_SPICE_USE_TLS: VTYPE_BOOL,
810
  HV_KVM_SPICE_TLS_CIPHERS: VTYPE_STRING,
811
  HV_KVM_SPICE_USE_VDAGENT: VTYPE_BOOL,
812
  HV_ACPI: VTYPE_BOOL,
813
  HV_PAE: VTYPE_BOOL,
814
  HV_USE_BOOTLOADER: VTYPE_BOOL,
815
  HV_BOOTLOADER_PATH: VTYPE_STRING,
816
  HV_BOOTLOADER_ARGS: VTYPE_STRING,
817
  HV_KERNEL_PATH: VTYPE_STRING,
818
  HV_KERNEL_ARGS: VTYPE_STRING,
819
  HV_INITRD_PATH: VTYPE_STRING,
820
  HV_ROOT_PATH: VTYPE_MAYBE_STRING,
821
  HV_SERIAL_CONSOLE: VTYPE_BOOL,
822
  HV_USB_MOUSE: VTYPE_STRING,
823
  HV_KEYMAP: VTYPE_STRING,
824
  HV_DEVICE_MODEL: VTYPE_STRING,
825
  HV_INIT_SCRIPT: VTYPE_STRING,
826
  HV_MIGRATION_PORT: VTYPE_INT,
827
  HV_MIGRATION_BANDWIDTH: VTYPE_INT,
828
  HV_MIGRATION_DOWNTIME: VTYPE_INT,
829
  HV_MIGRATION_MODE: VTYPE_STRING,
830
  HV_USE_LOCALTIME: VTYPE_BOOL,
831
  HV_DISK_CACHE: VTYPE_STRING,
832
  HV_SECURITY_MODEL: VTYPE_STRING,
833
  HV_SECURITY_DOMAIN: VTYPE_STRING,
834
  HV_KVM_FLAG: VTYPE_STRING,
835
  HV_VHOST_NET: VTYPE_BOOL,
836
  HV_KVM_USE_CHROOT: VTYPE_BOOL,
837
  HV_CPU_MASK: VTYPE_STRING,
838
  HV_MEM_PATH: VTYPE_STRING,
839
  HV_BLOCKDEV_PREFIX: VTYPE_STRING,
840
  HV_REBOOT_BEHAVIOR: VTYPE_STRING,
841
  }
842

    
843
HVS_PARAMETERS = frozenset(HVS_PARAMETER_TYPES.keys())
844

    
845
# Migration statuses
846
HV_MIGRATION_COMPLETED = "completed"
847
HV_MIGRATION_ACTIVE = "active"
848
HV_MIGRATION_FAILED = "failed"
849
HV_MIGRATION_CANCELLED = "cancelled"
850

    
851
HV_MIGRATION_VALID_STATUSES = frozenset([
852
  HV_MIGRATION_COMPLETED,
853
  HV_MIGRATION_ACTIVE,
854
  HV_MIGRATION_FAILED,
855
  HV_MIGRATION_CANCELLED,
856
  ])
857

    
858
HV_MIGRATION_FAILED_STATUSES = frozenset([
859
  HV_MIGRATION_FAILED,
860
  HV_MIGRATION_CANCELLED,
861
  ])
862

    
863
# KVM-specific statuses
864
HV_KVM_MIGRATION_VALID_STATUSES = HV_MIGRATION_VALID_STATUSES
865

    
866
# Node info keys
867
HV_NODEINFO_KEY_VERSION = "hv_version"
868

    
869
# Hypervisor state
870
HVST_MEMORY_TOTAL = "mem_total"
871
HVST_MEMORY_NODE = "mem_node"
872
HVST_MEMORY_HV = "mem_hv"
873
HVST_CPU_TOTAL = "cpu_total"
874
HVST_CPU_NODE = "cpu_node"
875

    
876
HVST_DEFAULTS = {
877
  HVST_MEMORY_TOTAL: 0,
878
  HVST_MEMORY_NODE: 0,
879
  HVST_MEMORY_HV: 0,
880
  HVST_CPU_TOTAL: 1,
881
  HVST_CPU_NODE: 1,
882
  }
883

    
884
HVSTS_PARAMETER_TYPES = {
885
  HVST_MEMORY_TOTAL: VTYPE_INT,
886
  HVST_MEMORY_NODE: VTYPE_INT,
887
  HVST_MEMORY_HV: VTYPE_INT,
888
  HVST_CPU_TOTAL: VTYPE_INT,
889
  HVST_CPU_NODE: VTYPE_INT,
890
  }
891

    
892
HVSTS_PARAMETERS = frozenset(HVSTS_PARAMETER_TYPES.keys())
893

    
894
# Disk state
895
DS_DISK_TOTAL = "disk_total"
896
DS_DISK_RESERVED = "disk_reserved"
897
DS_DISK_OVERHEAD = "disk_overhead"
898

    
899
DS_DEFAULTS = {
900
  DS_DISK_TOTAL: 0,
901
  DS_DISK_RESERVED: 0,
902
  DS_DISK_OVERHEAD: 0,
903
  }
904

    
905
DSS_PARAMETER_TYPES = {
906
  DS_DISK_TOTAL: VTYPE_INT,
907
  DS_DISK_RESERVED: VTYPE_INT,
908
  DS_DISK_OVERHEAD: VTYPE_INT,
909
  }
910

    
911
DSS_PARAMETERS = frozenset(DSS_PARAMETER_TYPES.keys())
912
DS_VALID_TYPES = frozenset([LD_LV])
913

    
914
# Backend parameter names
915
BE_MEMORY = "memory" # deprecated and replaced by max and min mem
916
BE_MAXMEM = "maxmem"
917
BE_MINMEM = "minmem"
918
BE_VCPUS = "vcpus"
919
BE_AUTO_BALANCE = "auto_balance"
920
BE_ALWAYS_FAILOVER = "always_failover"
921
BE_SPINDLE_USE = "spindle_use"
922

    
923
BES_PARAMETER_TYPES = {
924
  BE_MAXMEM: VTYPE_SIZE,
925
  BE_MINMEM: VTYPE_SIZE,
926
  BE_VCPUS: VTYPE_INT,
927
  BE_AUTO_BALANCE: VTYPE_BOOL,
928
  BE_ALWAYS_FAILOVER: VTYPE_BOOL,
929
  BE_SPINDLE_USE: VTYPE_INT,
930
  }
931

    
932
BES_PARAMETER_COMPAT = {
933
  BE_MEMORY: VTYPE_SIZE,
934
  }
935
BES_PARAMETER_COMPAT.update(BES_PARAMETER_TYPES)
936

    
937
BES_PARAMETERS = frozenset(BES_PARAMETER_TYPES.keys())
938

    
939
# instance specs
940
ISPEC_MEM_SIZE = "memory-size"
941
ISPEC_CPU_COUNT = "cpu-count"
942
ISPEC_DISK_COUNT = "disk-count"
943
ISPEC_DISK_SIZE = "disk-size"
944
ISPEC_NIC_COUNT = "nic-count"
945
ISPEC_SPINDLE_USE = "spindle-use"
946

    
947
ISPECS_PARAMETER_TYPES = {
948
  ISPEC_MEM_SIZE: VTYPE_INT,
949
  ISPEC_CPU_COUNT: VTYPE_INT,
950
  ISPEC_DISK_COUNT: VTYPE_INT,
951
  ISPEC_DISK_SIZE: VTYPE_INT,
952
  ISPEC_NIC_COUNT: VTYPE_INT,
953
  ISPEC_SPINDLE_USE: VTYPE_INT,
954
  }
955

    
956
ISPECS_PARAMETERS = frozenset(ISPECS_PARAMETER_TYPES.keys())
957

    
958
ISPECS_MIN = "min"
959
ISPECS_MAX = "max"
960
ISPECS_STD = "std"
961
IPOLICY_DTS = "disk-templates"
962
IPOLICY_VCPU_RATIO = "vcpu-ratio"
963
IPOLICY_SPINDLE_RATIO = "spindle-ratio"
964

    
965
IPOLICY_ISPECS = frozenset([
966
  ISPECS_MIN,
967
  ISPECS_MAX,
968
  ISPECS_STD,
969
  ])
970

    
971
IPOLICY_PARAMETERS = frozenset([
972
  IPOLICY_VCPU_RATIO,
973
  IPOLICY_SPINDLE_RATIO,
974
  ])
975

    
976
IPOLICY_ALL_KEYS = (IPOLICY_ISPECS |
977
                    IPOLICY_PARAMETERS |
978
                    frozenset([IPOLICY_DTS]))
979

    
980
# Node parameter names
981
ND_OOB_PROGRAM = "oob_program"
982
ND_SPINDLE_COUNT = "spindle_count"
983

    
984
NDS_PARAMETER_TYPES = {
985
  ND_OOB_PROGRAM: VTYPE_MAYBE_STRING,
986
  ND_SPINDLE_COUNT: VTYPE_INT,
987
  }
988

    
989
NDS_PARAMETERS = frozenset(NDS_PARAMETER_TYPES.keys())
990

    
991
# Logical Disks parameters
992
LDP_RESYNC_RATE = "resync-rate"
993
LDP_STRIPES = "stripes"
994
LDP_BARRIERS = "disabled-barriers"
995
LDP_NO_META_FLUSH = "disable-meta-flush"
996
LDP_DEFAULT_METAVG = "default-metavg"
997
LDP_DISK_CUSTOM = "disk-custom"
998
LDP_NET_CUSTOM = "net-custom"
999
LDP_DYNAMIC_RESYNC = "dynamic-resync"
1000
LDP_PLAN_AHEAD = "c-plan-ahead"
1001
LDP_FILL_TARGET = "c-fill-target"
1002
LDP_DELAY_TARGET = "c-delay-target"
1003
LDP_MAX_RATE = "c-max-rate"
1004
LDP_MIN_RATE = "c-min-rate"
1005
LDP_POOL = "pool"
1006
DISK_LD_TYPES = {
1007
  LDP_RESYNC_RATE: VTYPE_INT,
1008
  LDP_STRIPES: VTYPE_INT,
1009
  LDP_BARRIERS: VTYPE_STRING,
1010
  LDP_NO_META_FLUSH: VTYPE_BOOL,
1011
  LDP_DEFAULT_METAVG: VTYPE_STRING,
1012
  LDP_DISK_CUSTOM: VTYPE_STRING,
1013
  LDP_NET_CUSTOM: VTYPE_STRING,
1014
  LDP_DYNAMIC_RESYNC: VTYPE_BOOL,
1015
  LDP_PLAN_AHEAD: VTYPE_INT,
1016
  LDP_FILL_TARGET: VTYPE_INT,
1017
  LDP_DELAY_TARGET: VTYPE_INT,
1018
  LDP_MAX_RATE: VTYPE_INT,
1019
  LDP_MIN_RATE: VTYPE_INT,
1020
  LDP_POOL: VTYPE_STRING,
1021
  }
1022
DISK_LD_PARAMETERS = frozenset(DISK_LD_TYPES.keys())
1023

    
1024
# Disk template parameters (can be set/changed by the user via gnt-cluster and
1025
# gnt-group)
1026
DRBD_RESYNC_RATE = "resync-rate"
1027
DRBD_DATA_STRIPES = "data-stripes"
1028
DRBD_META_STRIPES = "meta-stripes"
1029
DRBD_DISK_BARRIERS = "disk-barriers"
1030
DRBD_META_BARRIERS = "meta-barriers"
1031
DRBD_DEFAULT_METAVG = "metavg"
1032
DRBD_DISK_CUSTOM = "disk-custom"
1033
DRBD_NET_CUSTOM = "net-custom"
1034
DRBD_DYNAMIC_RESYNC = "dynamic-resync"
1035
DRBD_PLAN_AHEAD = "c-plan-ahead"
1036
DRBD_FILL_TARGET = "c-fill-target"
1037
DRBD_DELAY_TARGET = "c-delay-target"
1038
DRBD_MAX_RATE = "c-max-rate"
1039
DRBD_MIN_RATE = "c-min-rate"
1040
LV_STRIPES = "stripes"
1041
RBD_POOL = "pool"
1042
DISK_DT_TYPES = {
1043
  DRBD_RESYNC_RATE: VTYPE_INT,
1044
  DRBD_DATA_STRIPES: VTYPE_INT,
1045
  DRBD_META_STRIPES: VTYPE_INT,
1046
  DRBD_DISK_BARRIERS: VTYPE_STRING,
1047
  DRBD_META_BARRIERS: VTYPE_BOOL,
1048
  DRBD_DEFAULT_METAVG: VTYPE_STRING,
1049
  DRBD_DISK_CUSTOM: VTYPE_STRING,
1050
  DRBD_NET_CUSTOM: VTYPE_STRING,
1051
  DRBD_DYNAMIC_RESYNC: VTYPE_BOOL,
1052
  DRBD_PLAN_AHEAD: VTYPE_INT,
1053
  DRBD_FILL_TARGET: VTYPE_INT,
1054
  DRBD_DELAY_TARGET: VTYPE_INT,
1055
  DRBD_MAX_RATE: VTYPE_INT,
1056
  DRBD_MIN_RATE: VTYPE_INT,
1057
  LV_STRIPES: VTYPE_INT,
1058
  RBD_POOL: VTYPE_STRING,
1059
  }
1060

    
1061
DISK_DT_PARAMETERS = frozenset(DISK_DT_TYPES.keys())
1062

    
1063
# OOB supported commands
1064
OOB_POWER_ON = "power-on"
1065
OOB_POWER_OFF = "power-off"
1066
OOB_POWER_CYCLE = "power-cycle"
1067
OOB_POWER_STATUS = "power-status"
1068
OOB_HEALTH = "health"
1069

    
1070
OOB_COMMANDS = frozenset([
1071
  OOB_POWER_ON,
1072
  OOB_POWER_OFF,
1073
  OOB_POWER_CYCLE,
1074
  OOB_POWER_STATUS,
1075
  OOB_HEALTH
1076
  ])
1077

    
1078
OOB_POWER_STATUS_POWERED = "powered"
1079

    
1080
OOB_TIMEOUT = 60 # 60 seconds
1081
OOB_POWER_DELAY = 2.0 # 2 seconds
1082

    
1083
OOB_STATUS_OK = "OK"
1084
OOB_STATUS_WARNING = "WARNING"
1085
OOB_STATUS_CRITICAL = "CRITICAL"
1086
OOB_STATUS_UNKNOWN = "UNKNOWN"
1087

    
1088
OOB_STATUSES = frozenset([
1089
  OOB_STATUS_OK,
1090
  OOB_STATUS_WARNING,
1091
  OOB_STATUS_CRITICAL,
1092
  OOB_STATUS_UNKNOWN,
1093
  ])
1094

    
1095
# Instance Parameters Profile
1096
PP_DEFAULT = "default"
1097

    
1098
# NIC_* constants are used inside the ganeti config
1099
NIC_MODE = "mode"
1100
NIC_LINK = "link"
1101

    
1102
NIC_MODE_BRIDGED = "bridged"
1103
NIC_MODE_ROUTED = "routed"
1104

    
1105
NIC_VALID_MODES = frozenset([NIC_MODE_BRIDGED, NIC_MODE_ROUTED])
1106

    
1107
NICS_PARAMETER_TYPES = {
1108
  NIC_MODE: VTYPE_STRING,
1109
  NIC_LINK: VTYPE_STRING,
1110
  }
1111

    
1112
NICS_PARAMETERS = frozenset(NICS_PARAMETER_TYPES.keys())
1113

    
1114
# IDISK_* constants are used in opcodes, to create/change disks
1115
IDISK_SIZE = "size"
1116
IDISK_MODE = "mode"
1117
IDISK_ADOPT = "adopt"
1118
IDISK_VG = "vg"
1119
IDISK_METAVG = "metavg"
1120
IDISK_PARAMS_TYPES = {
1121
  IDISK_SIZE: VTYPE_SIZE,
1122
  IDISK_MODE: VTYPE_STRING,
1123
  IDISK_ADOPT: VTYPE_STRING,
1124
  IDISK_VG: VTYPE_STRING,
1125
  IDISK_METAVG: VTYPE_STRING,
1126
  }
1127
IDISK_PARAMS = frozenset(IDISK_PARAMS_TYPES.keys())
1128

    
1129
# INIC_* constants are used in opcodes, to create/change nics
1130
INIC_MAC = "mac"
1131
INIC_IP = "ip"
1132
INIC_MODE = "mode"
1133
INIC_LINK = "link"
1134
INIC_PARAMS_TYPES = {
1135
  INIC_IP: VTYPE_MAYBE_STRING,
1136
  INIC_LINK: VTYPE_STRING,
1137
  INIC_MAC: VTYPE_STRING,
1138
  INIC_MODE: VTYPE_STRING,
1139
  }
1140
INIC_PARAMS = frozenset(INIC_PARAMS_TYPES.keys())
1141

    
1142
# Hypervisor constants
1143
HT_XEN_PVM = "xen-pvm"
1144
HT_FAKE = "fake"
1145
HT_XEN_HVM = "xen-hvm"
1146
HT_KVM = "kvm"
1147
HT_CHROOT = "chroot"
1148
HT_LXC = "lxc"
1149
HYPER_TYPES = frozenset([
1150
  HT_XEN_PVM,
1151
  HT_FAKE,
1152
  HT_XEN_HVM,
1153
  HT_KVM,
1154
  HT_CHROOT,
1155
  HT_LXC,
1156
  ])
1157
HTS_REQ_PORT = frozenset([HT_XEN_HVM, HT_KVM])
1158

    
1159
VNC_BASE_PORT = 5900
1160
VNC_PASSWORD_FILE = CONF_DIR + "/vnc-cluster-password"
1161
VNC_DEFAULT_BIND_ADDRESS = IP4_ADDRESS_ANY
1162

    
1163
# NIC types
1164
HT_NIC_RTL8139 = "rtl8139"
1165
HT_NIC_NE2K_PCI = "ne2k_pci"
1166
HT_NIC_NE2K_ISA = "ne2k_isa"
1167
HT_NIC_I82551 = "i82551"
1168
HT_NIC_I85557B = "i82557b"
1169
HT_NIC_I8259ER = "i82559er"
1170
HT_NIC_PCNET = "pcnet"
1171
HT_NIC_E1000 = "e1000"
1172
HT_NIC_PARAVIRTUAL = HT_DISK_PARAVIRTUAL = "paravirtual"
1173

    
1174
HT_HVM_VALID_NIC_TYPES = frozenset([
1175
  HT_NIC_RTL8139,
1176
  HT_NIC_NE2K_PCI,
1177
  HT_NIC_E1000,
1178
  HT_NIC_NE2K_ISA,
1179
  HT_NIC_PARAVIRTUAL
1180
  ])
1181
HT_KVM_VALID_NIC_TYPES = frozenset([
1182
  HT_NIC_RTL8139,
1183
  HT_NIC_NE2K_PCI,
1184
  HT_NIC_NE2K_ISA,
1185
  HT_NIC_I82551,
1186
  HT_NIC_I85557B,
1187
  HT_NIC_I8259ER,
1188
  HT_NIC_PCNET,
1189
  HT_NIC_E1000,
1190
  HT_NIC_PARAVIRTUAL
1191
  ])
1192

    
1193
# Disk types
1194
HT_DISK_IOEMU = "ioemu"
1195
HT_DISK_IDE = "ide"
1196
HT_DISK_SCSI = "scsi"
1197
HT_DISK_SD = "sd"
1198
HT_DISK_MTD = "mtd"
1199
HT_DISK_PFLASH = "pflash"
1200

    
1201
HT_CACHE_DEFAULT = "default"
1202
HT_CACHE_NONE = "none"
1203
HT_CACHE_WTHROUGH = "writethrough"
1204
HT_CACHE_WBACK = "writeback"
1205
HT_VALID_CACHE_TYPES = frozenset([
1206
  HT_CACHE_DEFAULT,
1207
  HT_CACHE_NONE,
1208
  HT_CACHE_WTHROUGH,
1209
  HT_CACHE_WBACK
1210
  ])
1211

    
1212
HT_HVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IOEMU])
1213
HT_KVM_VALID_DISK_TYPES = frozenset([
1214
  HT_DISK_PARAVIRTUAL,
1215
  HT_DISK_IDE,
1216
  HT_DISK_SCSI,
1217
  HT_DISK_SD,
1218
  HT_DISK_MTD,
1219
  HT_DISK_PFLASH
1220
  ])
1221

    
1222
# Mouse types:
1223
HT_MOUSE_MOUSE = "mouse"
1224
HT_MOUSE_TABLET = "tablet"
1225

    
1226
HT_KVM_VALID_MOUSE_TYPES = frozenset([HT_MOUSE_MOUSE, HT_MOUSE_TABLET])
1227

    
1228
# Boot order
1229
HT_BO_FLOPPY = "floppy"
1230
HT_BO_CDROM = "cdrom"
1231
HT_BO_DISK = "disk"
1232
HT_BO_NETWORK = "network"
1233

    
1234
HT_KVM_VALID_BO_TYPES = frozenset([
1235
  HT_BO_FLOPPY,
1236
  HT_BO_CDROM,
1237
  HT_BO_DISK,
1238
  HT_BO_NETWORK
1239
  ])
1240

    
1241
# SPICE lossless image compression options
1242
HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_GLZ = "auto_glz"
1243
HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_LZ = "auto_lz"
1244
HT_KVM_SPICE_LOSSLESS_IMG_COMPR_QUIC = "quic"
1245
HT_KVM_SPICE_LOSSLESS_IMG_COMPR_GLZ = "glz"
1246
HT_KVM_SPICE_LOSSLESS_IMG_COMPR_LZ = "lz"
1247
HT_KVM_SPICE_LOSSLESS_IMG_COMPR_OFF = "off"
1248

    
1249
HT_KVM_SPICE_VALID_LOSSLESS_IMG_COMPR_OPTIONS = frozenset([
1250
  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_GLZ,
1251
  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_AUTO_LZ,
1252
  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_QUIC,
1253
  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_GLZ,
1254
  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_LZ,
1255
  HT_KVM_SPICE_LOSSLESS_IMG_COMPR_OFF,
1256
  ])
1257

    
1258
# SPICE lossy image compression options (valid for both jpeg and zlib-glz)
1259
HT_KVM_SPICE_LOSSY_IMG_COMPR_AUTO = "auto"
1260
HT_KVM_SPICE_LOSSY_IMG_COMPR_NEVER = "never"
1261
HT_KVM_SPICE_LOSSY_IMG_COMPR_ALWAYS = "always"
1262

    
1263
HT_KVM_SPICE_VALID_LOSSY_IMG_COMPR_OPTIONS = frozenset([
1264
  HT_KVM_SPICE_LOSSY_IMG_COMPR_AUTO,
1265
  HT_KVM_SPICE_LOSSY_IMG_COMPR_NEVER,
1266
  HT_KVM_SPICE_LOSSY_IMG_COMPR_ALWAYS,
1267
  ])
1268

    
1269
# SPICE video stream detection
1270
HT_KVM_SPICE_VIDEO_STREAM_DETECTION_OFF = "off"
1271
HT_KVM_SPICE_VIDEO_STREAM_DETECTION_ALL = "all"
1272
HT_KVM_SPICE_VIDEO_STREAM_DETECTION_FILTER = "filter"
1273

    
1274
HT_KVM_SPICE_VALID_VIDEO_STREAM_DETECTION_OPTIONS = frozenset([
1275
  HT_KVM_SPICE_VIDEO_STREAM_DETECTION_OFF,
1276
  HT_KVM_SPICE_VIDEO_STREAM_DETECTION_ALL,
1277
  HT_KVM_SPICE_VIDEO_STREAM_DETECTION_FILTER,
1278
  ])
1279

    
1280
# Security models
1281
HT_SM_NONE = "none"
1282
HT_SM_USER = "user"
1283
HT_SM_POOL = "pool"
1284

    
1285
HT_KVM_VALID_SM_TYPES = frozenset([HT_SM_NONE, HT_SM_USER, HT_SM_POOL])
1286

    
1287
# Kvm flag values
1288
HT_KVM_ENABLED = "enabled"
1289
HT_KVM_DISABLED = "disabled"
1290

    
1291
HT_KVM_FLAG_VALUES = frozenset([HT_KVM_ENABLED, HT_KVM_DISABLED])
1292

    
1293
# Migration type
1294
HT_MIGRATION_LIVE = "live"
1295
HT_MIGRATION_NONLIVE = "non-live"
1296
HT_MIGRATION_MODES = frozenset([HT_MIGRATION_LIVE, HT_MIGRATION_NONLIVE])
1297

    
1298
# Cluster Verify steps
1299
VERIFY_NPLUSONE_MEM = "nplusone_mem"
1300
VERIFY_OPTIONAL_CHECKS = frozenset([VERIFY_NPLUSONE_MEM])
1301

    
1302
# Cluster Verify error classes
1303
CV_TCLUSTER = "cluster"
1304
CV_TNODE = "node"
1305
CV_TINSTANCE = "instance"
1306

    
1307
# Cluster Verify error codes and documentation
1308
CV_ECLUSTERCFG = \
1309
  (CV_TCLUSTER, "ECLUSTERCFG", "Cluster configuration verification failure")
1310
CV_ECLUSTERCERT = \
1311
  (CV_TCLUSTER, "ECLUSTERCERT",
1312
   "Cluster certificate files verification failure")
1313
CV_ECLUSTERFILECHECK = \
1314
  (CV_TCLUSTER, "ECLUSTERFILECHECK",
1315
   "Cluster configuration verification failure")
1316
CV_ECLUSTERDANGLINGNODES = \
1317
  (CV_TNODE, "ECLUSTERDANGLINGNODES",
1318
   "Some nodes belong to non-existing groups")
1319
CV_ECLUSTERDANGLINGINST = \
1320
  (CV_TNODE, "ECLUSTERDANGLINGINST",
1321
   "Some instances have a non-existing primary node")
1322
CV_EINSTANCEBADNODE = \
1323
  (CV_TINSTANCE, "EINSTANCEBADNODE",
1324
   "Instance marked as running lives on an offline node")
1325
CV_EINSTANCEDOWN = \
1326
  (CV_TINSTANCE, "EINSTANCEDOWN", "Instance not running on its primary node")
1327
CV_EINSTANCELAYOUT = \
1328
  (CV_TINSTANCE, "EINSTANCELAYOUT", "Instance has multiple secondary nodes")
1329
CV_EINSTANCEMISSINGDISK = \
1330
  (CV_TINSTANCE, "EINSTANCEMISSINGDISK", "Missing volume on an instance")
1331
CV_EINSTANCEFAULTYDISK = \
1332
  (CV_TINSTANCE, "EINSTANCEFAULTYDISK",
1333
   "Impossible to retrieve status for a disk")
1334
CV_EINSTANCEWRONGNODE = \
1335
  (CV_TINSTANCE, "EINSTANCEWRONGNODE", "Instance running on the wrong node")
1336
CV_EINSTANCESPLITGROUPS = \
1337
  (CV_TINSTANCE, "EINSTANCESPLITGROUPS",
1338
   "Instance with primary and secondary nodes in different groups")
1339
CV_EINSTANCEPOLICY = \
1340
  (CV_TINSTANCE, "EINSTANCEPOLICY",
1341
   "Instance does not meet policy")
1342
CV_ENODEDRBD = \
1343
  (CV_TNODE, "ENODEDRBD", "Error parsing the DRBD status file")
1344
CV_ENODEDRBDHELPER = \
1345
  (CV_TNODE, "ENODEDRBDHELPER", "Error caused by the DRBD helper")
1346
CV_ENODEFILECHECK = \
1347
  (CV_TNODE, "ENODEFILECHECK",
1348
   "Error retrieving the checksum of the node files")
1349
CV_ENODEHOOKS = \
1350
  (CV_TNODE, "ENODEHOOKS", "Communication failure in hooks execution")
1351
CV_ENODEHV = \
1352
  (CV_TNODE, "ENODEHV", "Hypervisor parameters verification failure")
1353
CV_ENODELVM = \
1354
  (CV_TNODE, "ENODELVM", "LVM-related node error")
1355
CV_ENODEN1 = \
1356
  (CV_TNODE, "ENODEN1", "Not enough memory to accommodate instance failovers")
1357
CV_ENODENET = \
1358
  (CV_TNODE, "ENODENET", "Network-related node error")
1359
CV_ENODEOS = \
1360
  (CV_TNODE, "ENODEOS", "OS-related node error")
1361
CV_ENODEORPHANINSTANCE = \
1362
  (CV_TNODE, "ENODEORPHANINSTANCE", "Unknown intance running on a node")
1363
CV_ENODEORPHANLV = \
1364
  (CV_TNODE, "ENODEORPHANLV", "Unknown LVM logical volume")
1365
CV_ENODERPC = \
1366
  (CV_TNODE, "ENODERPC",
1367
   "Error during connection to the primary node of an instance")
1368
CV_ENODESSH = \
1369
  (CV_TNODE, "ENODESSH", "SSH-related node error")
1370
CV_ENODEVERSION = \
1371
  (CV_TNODE, "ENODEVERSION",
1372
   "Protocol version mismatch or Ganeti version mismatch")
1373
CV_ENODESETUP = \
1374
  (CV_TNODE, "ENODESETUP", "Node setup error")
1375
CV_ENODETIME = \
1376
  (CV_TNODE, "ENODETIME", "Node returned invalid time")
1377
CV_ENODEOOBPATH = \
1378
  (CV_TNODE, "ENODEOOBPATH", "Invalid Out Of Band path")
1379
CV_ENODEUSERSCRIPTS = \
1380
  (CV_TNODE, "ENODEUSERSCRIPTS", "User scripts not present or not executable")
1381

    
1382
CV_ALL_ECODES = frozenset([
1383
  CV_ECLUSTERCFG,
1384
  CV_ECLUSTERCERT,
1385
  CV_ECLUSTERFILECHECK,
1386
  CV_ECLUSTERDANGLINGNODES,
1387
  CV_ECLUSTERDANGLINGINST,
1388
  CV_EINSTANCEBADNODE,
1389
  CV_EINSTANCEDOWN,
1390
  CV_EINSTANCELAYOUT,
1391
  CV_EINSTANCEMISSINGDISK,
1392
  CV_EINSTANCEFAULTYDISK,
1393
  CV_EINSTANCEWRONGNODE,
1394
  CV_EINSTANCESPLITGROUPS,
1395
  CV_EINSTANCEPOLICY,
1396
  CV_ENODEDRBD,
1397
  CV_ENODEDRBDHELPER,
1398
  CV_ENODEFILECHECK,
1399
  CV_ENODEHOOKS,
1400
  CV_ENODEHV,
1401
  CV_ENODELVM,
1402
  CV_ENODEN1,
1403
  CV_ENODENET,
1404
  CV_ENODEOS,
1405
  CV_ENODEORPHANINSTANCE,
1406
  CV_ENODEORPHANLV,
1407
  CV_ENODERPC,
1408
  CV_ENODESSH,
1409
  CV_ENODEVERSION,
1410
  CV_ENODESETUP,
1411
  CV_ENODETIME,
1412
  CV_ENODEOOBPATH,
1413
  CV_ENODEUSERSCRIPTS,
1414
  ])
1415

    
1416
CV_ALL_ECODES_STRINGS = frozenset(estr for (_, estr, _) in CV_ALL_ECODES)
1417

    
1418
# Node verify constants
1419
NV_DRBDHELPER = "drbd-helper"
1420
NV_DRBDLIST = "drbd-list"
1421
NV_FILELIST = "filelist"
1422
NV_HVINFO = "hvinfo"
1423
NV_HYPERVISOR = "hypervisor"
1424
NV_HVPARAMS = "hvparms"
1425
NV_INSTANCELIST = "instancelist"
1426
NV_LVLIST = "lvlist"
1427
NV_MASTERIP = "master-ip"
1428
NV_NODELIST = "nodelist"
1429
NV_NODENETTEST = "node-net-test"
1430
NV_NODESETUP = "nodesetup"
1431
NV_OSLIST = "oslist"
1432
NV_PVLIST = "pvlist"
1433
NV_TIME = "time"
1434
NV_VERSION = "version"
1435
NV_VGLIST = "vglist"
1436
NV_VMNODES = "vmnodes"
1437
NV_OOB_PATHS = "oob-paths"
1438
NV_BRIDGES = "bridges"
1439
NV_USERSCRIPTS = "user-scripts"
1440

    
1441
# Instance status
1442
INSTST_RUNNING = "running"
1443
INSTST_ADMINDOWN = "ADMIN_down"
1444
INSTST_ADMINOFFLINE = "ADMIN_offline"
1445
INSTST_NODEOFFLINE = "ERROR_nodeoffline"
1446
INSTST_NODEDOWN = "ERROR_nodedown"
1447
INSTST_WRONGNODE = "ERROR_wrongnode"
1448
INSTST_ERRORUP = "ERROR_up"
1449
INSTST_ERRORDOWN = "ERROR_down"
1450
INSTST_ALL = frozenset([
1451
  INSTST_RUNNING,
1452
  INSTST_ADMINDOWN,
1453
  INSTST_ADMINOFFLINE,
1454
  INSTST_NODEOFFLINE,
1455
  INSTST_NODEDOWN,
1456
  INSTST_WRONGNODE,
1457
  INSTST_ERRORUP,
1458
  INSTST_ERRORDOWN,
1459
  ])
1460

    
1461
# Admin states
1462
ADMINST_UP = "up"
1463
ADMINST_DOWN = "down"
1464
ADMINST_OFFLINE = "offline"
1465
ADMINST_ALL = frozenset([
1466
  ADMINST_UP,
1467
  ADMINST_DOWN,
1468
  ADMINST_OFFLINE,
1469
  ])
1470

    
1471
# Node roles
1472
NR_REGULAR = "R"
1473
NR_MASTER = "M"
1474
NR_MCANDIDATE = "C"
1475
NR_DRAINED = "D"
1476
NR_OFFLINE = "O"
1477
NR_ALL = frozenset([
1478
  NR_REGULAR,
1479
  NR_MASTER,
1480
  NR_MCANDIDATE,
1481
  NR_DRAINED,
1482
  NR_OFFLINE,
1483
  ])
1484

    
1485
# SSL certificate check constants (in days)
1486
SSL_CERT_EXPIRATION_WARN = 30
1487
SSL_CERT_EXPIRATION_ERROR = 7
1488

    
1489
# Allocator framework constants
1490
IALLOCATOR_VERSION = 2
1491
IALLOCATOR_DIR_IN = "in"
1492
IALLOCATOR_DIR_OUT = "out"
1493
VALID_IALLOCATOR_DIRECTIONS = frozenset([
1494
  IALLOCATOR_DIR_IN,
1495
  IALLOCATOR_DIR_OUT,
1496
  ])
1497
IALLOCATOR_MODE_ALLOC = "allocate"
1498
IALLOCATOR_MODE_RELOC = "relocate"
1499
IALLOCATOR_MODE_CHG_GROUP = "change-group"
1500
IALLOCATOR_MODE_NODE_EVAC = "node-evacuate"
1501
VALID_IALLOCATOR_MODES = frozenset([
1502
  IALLOCATOR_MODE_ALLOC,
1503
  IALLOCATOR_MODE_RELOC,
1504
  IALLOCATOR_MODE_CHG_GROUP,
1505
  IALLOCATOR_MODE_NODE_EVAC,
1506
  ])
1507
IALLOCATOR_SEARCH_PATH = _autoconf.IALLOCATOR_SEARCH_PATH
1508

    
1509
IALLOCATOR_NEVAC_PRI = "primary-only"
1510
IALLOCATOR_NEVAC_SEC = "secondary-only"
1511
IALLOCATOR_NEVAC_ALL = "all"
1512
IALLOCATOR_NEVAC_MODES = frozenset([
1513
  IALLOCATOR_NEVAC_PRI,
1514
  IALLOCATOR_NEVAC_SEC,
1515
  IALLOCATOR_NEVAC_ALL,
1516
  ])
1517

    
1518
# Node evacuation
1519
NODE_EVAC_PRI = "primary-only"
1520
NODE_EVAC_SEC = "secondary-only"
1521
NODE_EVAC_ALL = "all"
1522
NODE_EVAC_MODES = frozenset([
1523
  NODE_EVAC_PRI,
1524
  NODE_EVAC_SEC,
1525
  NODE_EVAC_ALL,
1526
  ])
1527

    
1528
# Job queue
1529
JOB_QUEUE_VERSION = 1
1530
JOB_QUEUE_LOCK_FILE = QUEUE_DIR + "/lock"
1531
JOB_QUEUE_VERSION_FILE = QUEUE_DIR + "/version"
1532
JOB_QUEUE_SERIAL_FILE = QUEUE_DIR + "/serial"
1533
JOB_QUEUE_ARCHIVE_DIR = QUEUE_DIR + "/archive"
1534
JOB_QUEUE_DRAIN_FILE = QUEUE_DIR + "/drain"
1535
JOB_QUEUE_SIZE_HARD_LIMIT = 5000
1536
JOB_QUEUE_DIRS = [QUEUE_DIR, JOB_QUEUE_ARCHIVE_DIR]
1537
JOB_QUEUE_DIRS_MODE = SECURE_DIR_MODE
1538

    
1539
JOB_ID_TEMPLATE = r"\d+"
1540
JOB_FILE_RE = re.compile(r"^job-(%s)$" % JOB_ID_TEMPLATE)
1541

    
1542
# unchanged job return
1543
JOB_NOTCHANGED = "nochange"
1544

    
1545
# Job status
1546
JOB_STATUS_QUEUED = "queued"
1547
JOB_STATUS_WAITING = "waiting"
1548
JOB_STATUS_CANCELING = "canceling"
1549
JOB_STATUS_RUNNING = "running"
1550
JOB_STATUS_CANCELED = "canceled"
1551
JOB_STATUS_SUCCESS = "success"
1552
JOB_STATUS_ERROR = "error"
1553
JOBS_FINALIZED = frozenset([
1554
  JOB_STATUS_CANCELED,
1555
  JOB_STATUS_SUCCESS,
1556
  JOB_STATUS_ERROR,
1557
  ])
1558
JOB_STATUS_ALL = frozenset([
1559
  JOB_STATUS_QUEUED,
1560
  JOB_STATUS_WAITING,
1561
  JOB_STATUS_CANCELING,
1562
  JOB_STATUS_RUNNING,
1563
  ]) | JOBS_FINALIZED
1564

    
1565
# OpCode status
1566
# not yet finalized
1567
OP_STATUS_QUEUED = "queued"
1568
OP_STATUS_WAITING = "waiting"
1569
OP_STATUS_CANCELING = "canceling"
1570
OP_STATUS_RUNNING = "running"
1571
# finalized
1572
OP_STATUS_CANCELED = "canceled"
1573
OP_STATUS_SUCCESS = "success"
1574
OP_STATUS_ERROR = "error"
1575
OPS_FINALIZED = frozenset([
1576
  OP_STATUS_CANCELED,
1577
  OP_STATUS_SUCCESS,
1578
  OP_STATUS_ERROR
1579
  ])
1580

    
1581
# OpCode priority
1582
OP_PRIO_LOWEST = +19
1583
OP_PRIO_HIGHEST = -20
1584

    
1585
OP_PRIO_LOW = +10
1586
OP_PRIO_NORMAL = 0
1587
OP_PRIO_HIGH = -10
1588

    
1589
OP_PRIO_SUBMIT_VALID = frozenset([
1590
  OP_PRIO_LOW,
1591
  OP_PRIO_NORMAL,
1592
  OP_PRIO_HIGH,
1593
  ])
1594

    
1595
OP_PRIO_DEFAULT = OP_PRIO_NORMAL
1596

    
1597
# Execution log types
1598
ELOG_MESSAGE = "message"
1599
ELOG_PROGRESS = "progress"
1600
ELOG_REMOTE_IMPORT = "remote-import"
1601
ELOG_JQUEUE_TEST = "jqueue-test"
1602

    
1603
# /etc/hosts modification
1604
ETC_HOSTS_ADD = "add"
1605
ETC_HOSTS_REMOVE = "remove"
1606

    
1607
# Job queue test
1608
JQT_MSGPREFIX = "TESTMSG="
1609
JQT_EXPANDNAMES = "expandnames"
1610
JQT_EXEC = "exec"
1611
JQT_LOGMSG = "logmsg"
1612
JQT_STARTMSG = "startmsg"
1613
JQT_ALL = frozenset([
1614
  JQT_EXPANDNAMES,
1615
  JQT_EXEC,
1616
  JQT_LOGMSG,
1617
  JQT_STARTMSG,
1618
  ])
1619

    
1620
# Query resources
1621
QR_INSTANCE = "instance"
1622
QR_NODE = "node"
1623
QR_LOCK = "lock"
1624
QR_GROUP = "group"
1625
QR_OS = "os"
1626

    
1627
#: List of resources which can be queried using L{opcodes.OpQuery}
1628
QR_VIA_OP = frozenset([QR_INSTANCE, QR_NODE, QR_GROUP, QR_OS])
1629

    
1630
#: List of resources which can be queried using Local UniX Interface
1631
QR_VIA_LUXI = QR_VIA_OP.union([
1632
  QR_LOCK,
1633
  ])
1634

    
1635
#: List of resources which can be queried using RAPI
1636
QR_VIA_RAPI = QR_VIA_LUXI
1637

    
1638
# Query field types
1639
QFT_UNKNOWN = "unknown"
1640
QFT_TEXT = "text"
1641
QFT_BOOL = "bool"
1642
QFT_NUMBER = "number"
1643
QFT_UNIT = "unit"
1644
QFT_TIMESTAMP = "timestamp"
1645
QFT_OTHER = "other"
1646

    
1647
#: All query field types
1648
QFT_ALL = frozenset([
1649
  QFT_UNKNOWN,
1650
  QFT_TEXT,
1651
  QFT_BOOL,
1652
  QFT_NUMBER,
1653
  QFT_UNIT,
1654
  QFT_TIMESTAMP,
1655
  QFT_OTHER,
1656
  ])
1657

    
1658
# Query result field status (don't change or reuse values as they're used by
1659
# clients)
1660
#: Normal field status
1661
RS_NORMAL = 0
1662
#: Unknown field
1663
RS_UNKNOWN = 1
1664
#: No data (e.g. RPC error), can be used instead of L{RS_OFFLINE}
1665
RS_NODATA = 2
1666
#: Value unavailable/unsupported for item; if this field is supported
1667
#: but we cannot get the data for the moment, RS_NODATA or
1668
#: RS_OFFLINE should be used
1669
RS_UNAVAIL = 3
1670
#: Resource marked offline
1671
RS_OFFLINE = 4
1672

    
1673
RS_ALL = frozenset([
1674
  RS_NORMAL,
1675
  RS_UNKNOWN,
1676
  RS_NODATA,
1677
  RS_UNAVAIL,
1678
  RS_OFFLINE,
1679
  ])
1680

    
1681
#: Dictionary with special field cases and their verbose/terse formatting
1682
RSS_DESCRIPTION = {
1683
  RS_UNKNOWN: ("(unknown)", "??"),
1684
  RS_NODATA: ("(nodata)", "?"),
1685
  RS_OFFLINE: ("(offline)", "*"),
1686
  RS_UNAVAIL: ("(unavail)", "-"),
1687
  }
1688

    
1689
# max dynamic devices
1690
MAX_NICS = 8
1691
MAX_DISKS = 16
1692

    
1693
# SSCONF keys
1694
SS_CLUSTER_NAME = "cluster_name"
1695
SS_CLUSTER_TAGS = "cluster_tags"
1696
SS_FILE_STORAGE_DIR = "file_storage_dir"
1697
SS_SHARED_FILE_STORAGE_DIR = "shared_file_storage_dir"
1698
SS_MASTER_CANDIDATES = "master_candidates"
1699
SS_MASTER_CANDIDATES_IPS = "master_candidates_ips"
1700
SS_MASTER_IP = "master_ip"
1701
SS_MASTER_NETDEV = "master_netdev"
1702
SS_MASTER_NETMASK = "master_netmask"
1703
SS_MASTER_NODE = "master_node"
1704
SS_NODE_LIST = "node_list"
1705
SS_NODE_PRIMARY_IPS = "node_primary_ips"
1706
SS_NODE_SECONDARY_IPS = "node_secondary_ips"
1707
SS_OFFLINE_NODES = "offline_nodes"
1708
SS_ONLINE_NODES = "online_nodes"
1709
SS_PRIMARY_IP_FAMILY = "primary_ip_family"
1710
SS_INSTANCE_LIST = "instance_list"
1711
SS_RELEASE_VERSION = "release_version"
1712
SS_HYPERVISOR_LIST = "hypervisor_list"
1713
SS_MAINTAIN_NODE_HEALTH = "maintain_node_health"
1714
SS_UID_POOL = "uid_pool"
1715
SS_NODEGROUPS = "nodegroups"
1716

    
1717
SS_FILE_PERMS = 0444
1718

    
1719
# cluster wide default parameters
1720
DEFAULT_ENABLED_HYPERVISOR = HT_XEN_PVM
1721

    
1722
HVC_DEFAULTS = {
1723
  HT_XEN_PVM: {
1724
    HV_USE_BOOTLOADER: False,
1725
    HV_BOOTLOADER_PATH: XEN_BOOTLOADER,
1726
    HV_BOOTLOADER_ARGS: "",
1727
    HV_KERNEL_PATH: "/boot/vmlinuz-2.6-xenU",
1728
    HV_INITRD_PATH: "",
1729
    HV_ROOT_PATH: "/dev/sda1",
1730
    HV_KERNEL_ARGS: "ro",
1731
    HV_MIGRATION_PORT: 8002,
1732
    HV_MIGRATION_MODE: HT_MIGRATION_LIVE,
1733
    HV_BLOCKDEV_PREFIX: "sd",
1734
    HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
1735
    HV_CPU_MASK: CPU_PINNING_ALL,
1736
    },
1737
  HT_XEN_HVM: {
1738
    HV_BOOT_ORDER: "cd",
1739
    HV_CDROM_IMAGE_PATH: "",
1740
    HV_NIC_TYPE: HT_NIC_RTL8139,
1741
    HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
1742
    HV_VNC_BIND_ADDRESS: IP4_ADDRESS_ANY,
1743
    HV_VNC_PASSWORD_FILE: VNC_PASSWORD_FILE,
1744
    HV_ACPI: True,
1745
    HV_PAE: True,
1746
    HV_KERNEL_PATH: "/usr/lib/xen/boot/hvmloader",
1747
    HV_DEVICE_MODEL: "/usr/lib/xen/bin/qemu-dm",
1748
    HV_MIGRATION_PORT: 8002,
1749
    HV_MIGRATION_MODE: HT_MIGRATION_NONLIVE,
1750
    HV_USE_LOCALTIME: False,
1751
    HV_BLOCKDEV_PREFIX: "hd",
1752
    HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
1753
    HV_CPU_MASK: CPU_PINNING_ALL,
1754
    },
1755
  HT_KVM: {
1756
    HV_KERNEL_PATH: "/boot/vmlinuz-2.6-kvmU",
1757
    HV_INITRD_PATH: "",
1758
    HV_KERNEL_ARGS: "ro",
1759
    HV_ROOT_PATH: "/dev/vda1",
1760
    HV_ACPI: True,
1761
    HV_SERIAL_CONSOLE: True,
1762
    HV_VNC_BIND_ADDRESS: "",
1763
    HV_VNC_TLS: False,
1764
    HV_VNC_X509: "",
1765
    HV_VNC_X509_VERIFY: False,
1766
    HV_VNC_PASSWORD_FILE: "",
1767
    HV_KVM_SPICE_BIND: "",
1768
    HV_KVM_SPICE_IP_VERSION: IFACE_NO_IP_VERSION_SPECIFIED,
1769
    HV_KVM_SPICE_PASSWORD_FILE: "",
1770
    HV_KVM_SPICE_LOSSLESS_IMG_COMPR: "",
1771
    HV_KVM_SPICE_JPEG_IMG_COMPR: "",
1772
    HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR: "",
1773
    HV_KVM_SPICE_STREAMING_VIDEO_DETECTION: "",
1774
    HV_KVM_SPICE_AUDIO_COMPR: True,
1775
    HV_KVM_SPICE_USE_TLS: False,
1776
    HV_KVM_SPICE_TLS_CIPHERS: OPENSSL_CIPHERS,
1777
    HV_KVM_SPICE_USE_VDAGENT: True,
1778
    HV_KVM_FLOPPY_IMAGE_PATH: "",
1779
    HV_CDROM_IMAGE_PATH: "",
1780
    HV_KVM_CDROM2_IMAGE_PATH: "",
1781
    HV_BOOT_ORDER: HT_BO_DISK,
1782
    HV_NIC_TYPE: HT_NIC_PARAVIRTUAL,
1783
    HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
1784
    HV_KVM_CDROM_DISK_TYPE: "",
1785
    HV_USB_MOUSE: "",
1786
    HV_KEYMAP: "",
1787
    HV_MIGRATION_PORT: 8102,
1788
    HV_MIGRATION_BANDWIDTH: 32, # MiB/s
1789
    HV_MIGRATION_DOWNTIME: 30,  # ms
1790
    HV_MIGRATION_MODE: HT_MIGRATION_LIVE,
1791
    HV_USE_LOCALTIME: False,
1792
    HV_DISK_CACHE: HT_CACHE_DEFAULT,
1793
    HV_SECURITY_MODEL: HT_SM_NONE,
1794
    HV_SECURITY_DOMAIN: "",
1795
    HV_KVM_FLAG: "",
1796
    HV_VHOST_NET: False,
1797
    HV_KVM_USE_CHROOT: False,
1798
    HV_MEM_PATH: "",
1799
    HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
1800
    HV_CPU_MASK: CPU_PINNING_ALL,
1801
    },
1802
  HT_FAKE: {
1803
    },
1804
  HT_CHROOT: {
1805
    HV_INIT_SCRIPT: "/ganeti-chroot",
1806
    },
1807
  HT_LXC: {
1808
    HV_CPU_MASK: "",
1809
    },
1810
  }
1811

    
1812
HVC_GLOBALS = frozenset([
1813
  HV_MIGRATION_PORT,
1814
  HV_MIGRATION_BANDWIDTH,
1815
  HV_MIGRATION_MODE,
1816
  ])
1817

    
1818
BEC_DEFAULTS = {
1819
  BE_MINMEM: 128,
1820
  BE_MAXMEM: 128,
1821
  BE_VCPUS: 1,
1822
  BE_AUTO_BALANCE: True,
1823
  BE_ALWAYS_FAILOVER: False,
1824
  BE_SPINDLE_USE: 1,
1825
  }
1826

    
1827
NDC_DEFAULTS = {
1828
  ND_OOB_PROGRAM: None,
1829
  ND_SPINDLE_COUNT: 1,
1830
  }
1831

    
1832
DISK_LD_DEFAULTS = {
1833
  LD_DRBD8: {
1834
    LDP_RESYNC_RATE: CLASSIC_DRBD_SYNC_SPEED,
1835
    LDP_BARRIERS: _autoconf.DRBD_BARRIERS,
1836
    LDP_NO_META_FLUSH: _autoconf.DRBD_NO_META_FLUSH,
1837
    LDP_DEFAULT_METAVG: DEFAULT_VG,
1838
    LDP_DISK_CUSTOM: "",
1839
    LDP_NET_CUSTOM: "",
1840
    LDP_DYNAMIC_RESYNC: False,
1841

    
1842
    # The default values for the DRBD dynamic resync speed algorithm are taken
1843
    # from the drbsetup 8.3.11 man page, except for c-plan-ahead (that we
1844
    # don't need to set to 0, because we have a separate option to enable it)
1845
    # and for c-max-rate, that we cap to the default value for the static resync
1846
    # rate.
1847
    LDP_PLAN_AHEAD: 20, # ds
1848
    LDP_FILL_TARGET: 0, # sectors
1849
    LDP_DELAY_TARGET: 1, # ds
1850
    LDP_MAX_RATE: CLASSIC_DRBD_SYNC_SPEED, # KiB/s
1851
    LDP_MIN_RATE: 4 * 1024, # KiB/s
1852
    },
1853
  LD_LV: {
1854
    LDP_STRIPES: _autoconf.LVM_STRIPECOUNT
1855
    },
1856
  LD_FILE: {
1857
    },
1858
  LD_BLOCKDEV: {
1859
    },
1860
  LD_RBD: {
1861
    LDP_POOL: "rbd"
1862
    },
1863
  }
1864

    
1865
# readability shortcuts
1866
_LV_DEFAULTS = DISK_LD_DEFAULTS[LD_LV]
1867
_DRBD_DEFAULTS = DISK_LD_DEFAULTS[LD_DRBD8]
1868

    
1869
DISK_DT_DEFAULTS = {
1870
  DT_PLAIN: {
1871
    LV_STRIPES: DISK_LD_DEFAULTS[LD_LV][LDP_STRIPES],
1872
    },
1873
  DT_DRBD8: {
1874
    DRBD_RESYNC_RATE: _DRBD_DEFAULTS[LDP_RESYNC_RATE],
1875
    DRBD_DATA_STRIPES: _LV_DEFAULTS[LDP_STRIPES],
1876
    DRBD_META_STRIPES: _LV_DEFAULTS[LDP_STRIPES],
1877
    DRBD_DISK_BARRIERS: _DRBD_DEFAULTS[LDP_BARRIERS],
1878
    DRBD_META_BARRIERS: _DRBD_DEFAULTS[LDP_NO_META_FLUSH],
1879
    DRBD_DEFAULT_METAVG: _DRBD_DEFAULTS[LDP_DEFAULT_METAVG],
1880
    DRBD_DISK_CUSTOM: _DRBD_DEFAULTS[LDP_DISK_CUSTOM],
1881
    DRBD_NET_CUSTOM: _DRBD_DEFAULTS[LDP_NET_CUSTOM],
1882
    DRBD_DYNAMIC_RESYNC: _DRBD_DEFAULTS[LDP_DYNAMIC_RESYNC],
1883
    DRBD_PLAN_AHEAD: _DRBD_DEFAULTS[LDP_PLAN_AHEAD],
1884
    DRBD_FILL_TARGET: _DRBD_DEFAULTS[LDP_FILL_TARGET],
1885
    DRBD_DELAY_TARGET: _DRBD_DEFAULTS[LDP_DELAY_TARGET],
1886
    DRBD_MAX_RATE: _DRBD_DEFAULTS[LDP_MAX_RATE],
1887
    DRBD_MIN_RATE: _DRBD_DEFAULTS[LDP_MIN_RATE],
1888
    },
1889
  DT_DISKLESS: {
1890
    },
1891
  DT_FILE: {
1892
    },
1893
  DT_SHARED_FILE: {
1894
    },
1895
  DT_BLOCK: {
1896
    },
1897
  DT_RBD: {
1898
    RBD_POOL: DISK_LD_DEFAULTS[LD_RBD][LDP_POOL]
1899
    },
1900
  }
1901

    
1902
# we don't want to export the shortcuts
1903
del _LV_DEFAULTS, _DRBD_DEFAULTS
1904

    
1905
NICC_DEFAULTS = {
1906
  NIC_MODE: NIC_MODE_BRIDGED,
1907
  NIC_LINK: DEFAULT_BRIDGE,
1908
  }
1909

    
1910
# All of the following values are quite arbitrarily - there are no
1911
# "good" defaults, these must be customised per-site
1912
IPOLICY_DEFAULTS = {
1913
  ISPECS_MIN: {
1914
    ISPEC_MEM_SIZE: 128,
1915
    ISPEC_CPU_COUNT: 1,
1916
    ISPEC_DISK_COUNT: 1,
1917
    ISPEC_DISK_SIZE: 1024,
1918
    ISPEC_NIC_COUNT: 1,
1919
    ISPEC_SPINDLE_USE: 1,
1920
    },
1921
  ISPECS_MAX: {
1922
    ISPEC_MEM_SIZE: 32768,
1923
    ISPEC_CPU_COUNT: 8,
1924
    ISPEC_DISK_COUNT: MAX_DISKS,
1925
    ISPEC_DISK_SIZE: 1024 * 1024,
1926
    ISPEC_NIC_COUNT: MAX_NICS,
1927
    ISPEC_SPINDLE_USE: 12,
1928
    },
1929
  ISPECS_STD: {
1930
    ISPEC_MEM_SIZE: 128,
1931
    ISPEC_CPU_COUNT: 1,
1932
    ISPEC_DISK_COUNT: 1,
1933
    ISPEC_DISK_SIZE: 1024,
1934
    ISPEC_NIC_COUNT: 1,
1935
    ISPEC_SPINDLE_USE: 1,
1936
    },
1937
  IPOLICY_DTS: DISK_TEMPLATES,
1938
  IPOLICY_VCPU_RATIO: 4.0,
1939
  IPOLICY_SPINDLE_RATIO: 32.0,
1940
  }
1941

    
1942
MASTER_POOL_SIZE_DEFAULT = 10
1943

    
1944
CONFD_PROTOCOL_VERSION = 1
1945

    
1946
CONFD_REQ_PING = 0
1947
CONFD_REQ_NODE_ROLE_BYNAME = 1
1948
CONFD_REQ_NODE_PIP_BY_INSTANCE_IP = 2
1949
CONFD_REQ_CLUSTER_MASTER = 3
1950
CONFD_REQ_NODE_PIP_LIST = 4
1951
CONFD_REQ_MC_PIP_LIST = 5
1952
CONFD_REQ_INSTANCES_IPS_LIST = 6
1953

    
1954
# Confd request query fields. These are used to narrow down queries.
1955
# These must be strings rather than integers, because json-encoding
1956
# converts them to strings anyway, as they're used as dict-keys.
1957
CONFD_REQQ_LINK = "0"
1958
CONFD_REQQ_IP = "1"
1959
CONFD_REQQ_IPLIST = "2"
1960
CONFD_REQQ_FIELDS = "3"
1961

    
1962
CONFD_REQFIELD_NAME = "0"
1963
CONFD_REQFIELD_IP = "1"
1964
CONFD_REQFIELD_MNODE_PIP = "2"
1965

    
1966
CONFD_REQS = frozenset([
1967
  CONFD_REQ_PING,
1968
  CONFD_REQ_NODE_ROLE_BYNAME,
1969
  CONFD_REQ_NODE_PIP_BY_INSTANCE_IP,
1970
  CONFD_REQ_CLUSTER_MASTER,
1971
  CONFD_REQ_NODE_PIP_LIST,
1972
  CONFD_REQ_MC_PIP_LIST,
1973
  CONFD_REQ_INSTANCES_IPS_LIST,
1974
  ])
1975

    
1976
CONFD_REPL_STATUS_OK = 0
1977
CONFD_REPL_STATUS_ERROR = 1
1978
CONFD_REPL_STATUS_NOTIMPLEMENTED = 2
1979

    
1980
CONFD_REPL_STATUSES = frozenset([
1981
  CONFD_REPL_STATUS_OK,
1982
  CONFD_REPL_STATUS_ERROR,
1983
  CONFD_REPL_STATUS_NOTIMPLEMENTED,
1984
  ])
1985

    
1986
(CONFD_NODE_ROLE_MASTER,
1987
 CONFD_NODE_ROLE_CANDIDATE,
1988
 CONFD_NODE_ROLE_OFFLINE,
1989
 CONFD_NODE_ROLE_DRAINED,
1990
 CONFD_NODE_ROLE_REGULAR,
1991
 ) = range(5)
1992

    
1993
# A few common errors for confd
1994
CONFD_ERROR_UNKNOWN_ENTRY = 1
1995
CONFD_ERROR_INTERNAL = 2
1996
CONFD_ERROR_ARGUMENT = 3
1997

    
1998
# Each request is "salted" by the current timestamp.
1999
# This constants decides how many seconds of skew to accept.
2000
# TODO: make this a default and allow the value to be more configurable
2001
CONFD_MAX_CLOCK_SKEW = 2 * NODE_MAX_CLOCK_SKEW
2002

    
2003
# When we haven't reloaded the config for more than this amount of seconds, we
2004
# force a test to see if inotify is betraying us.
2005
CONFD_CONFIG_RELOAD_TIMEOUT = 60
2006

    
2007
# If we receive more than one update in this amount of seconds, we move to
2008
# polling every RATELIMIT seconds, rather than relying on inotify, to be able
2009
# to serve more requests.
2010
CONFD_CONFIG_RELOAD_RATELIMIT = 2
2011

    
2012
# Magic number prepended to all confd queries.
2013
# This allows us to distinguish different types of confd protocols and handle
2014
# them. For example by changing this we can move the whole payload to be
2015
# compressed, or move away from json.
2016
CONFD_MAGIC_FOURCC = "plj0"
2017

    
2018
# By default a confd request is sent to the minimum between this number and all
2019
# MCs. 6 was chosen because even in the case of a disastrous 50% response rate,
2020
# we should have enough answers to be able to compare more than one.
2021
CONFD_DEFAULT_REQ_COVERAGE = 6
2022

    
2023
# Timeout in seconds to expire pending query request in the confd client
2024
# library. We don't actually expect any answer more than 10 seconds after we
2025
# sent a request.
2026
CONFD_CLIENT_EXPIRE_TIMEOUT = 10
2027

    
2028
# Maximum UDP datagram size.
2029
# On IPv4: 64K - 20 (ip header size) - 8 (udp header size) = 65507
2030
# On IPv6: 64K - 40 (ip6 header size) - 8 (udp header size) = 65487
2031
#   (assuming we can't use jumbo frames)
2032
# We just set this to 60K, which should be enough
2033
MAX_UDP_DATA_SIZE = 61440
2034

    
2035
# User-id pool minimum/maximum acceptable user-ids.
2036
UIDPOOL_UID_MIN = 0
2037
UIDPOOL_UID_MAX = 2 ** 32 - 1 # Assuming 32 bit user-ids
2038

    
2039
# Name or path of the pgrep command
2040
PGREP = "pgrep"
2041

    
2042
# Name of the node group that gets created at cluster init or upgrade
2043
INITIAL_NODE_GROUP_NAME = "default"
2044

    
2045
# Possible values for NodeGroup.alloc_policy
2046
ALLOC_POLICY_PREFERRED = "preferred"
2047
ALLOC_POLICY_LAST_RESORT = "last_resort"
2048
ALLOC_POLICY_UNALLOCABLE = "unallocable"
2049
VALID_ALLOC_POLICIES = [
2050
  ALLOC_POLICY_PREFERRED,
2051
  ALLOC_POLICY_LAST_RESORT,
2052
  ALLOC_POLICY_UNALLOCABLE,
2053
  ]
2054

    
2055
# Temporary external/shared storage parameters
2056
BLOCKDEV_DRIVER_MANUAL = "manual"
2057

    
2058
# qemu-img path, required for ovfconverter
2059
QEMUIMG_PATH = _autoconf.QEMUIMG_PATH
2060

    
2061
# Whether htools was enabled at compilation time
2062
HTOOLS = _autoconf.HTOOLS
2063
# The hail iallocator
2064
IALLOC_HAIL = "hail"
2065

    
2066
# Fake opcodes for functions that have hooks attached to them via
2067
# backend.RunLocalHooks
2068
FAKE_OP_MASTER_TURNUP = "OP_CLUSTER_IP_TURNUP"
2069
FAKE_OP_MASTER_TURNDOWN = "OP_CLUSTER_IP_TURNDOWN"
2070

    
2071
# Do not re-export imported modules
2072
del re, _vcsversion, _autoconf