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#
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#
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# Copyright (C) 2006, 2007 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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# various versions
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PROTOCOL_VERSION = 30
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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_VERSIONS = frozenset([OS_API_V10, OS_API_V15])
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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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# 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 = 0755
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SOCKET_DIR = RUN_GANETI_DIR + "/socket"
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SOCKET_DIR_MODE = 0700
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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 = [ RUN_GANETI_DIR, BDEV_CACHE_DIR, DISK_LINKS_DIR ]
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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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WATCHER_STATEFILE = DATA_DIR + "/watcher.data"
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WATCHER_PAUSEFILE = DATA_DIR + "/watcher.pause"
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INSTANCE_UPFILE = 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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ETC_HOSTS = "/etc/hosts"
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DEFAULT_FILE_STORAGE_DIR = _autoconf.FILE_STORAGE_DIR
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ENABLE_FILE_STORAGE = _autoconf.ENABLE_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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ALL_CERT_FILES = frozenset([NODED_CERT_FILE, RAPI_CERT_FILE])
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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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MULTITHREADED_DAEMONS = frozenset([MASTERD])
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DAEMONS_SSL = {
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  # daemon-name: (default-cert-path, default-key-path)
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  NODED: (NODED_CERT_FILE, NODED_CERT_FILE),
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  RAPI: (RAPI_CERT_FILE, RAPI_CERT_FILE),
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}
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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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  # 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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# 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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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_ESCAPE_CODE = "0x1d"
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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 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_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([SF_NAME, SF_TYPE, SF_SIZE,
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                                  SF_USED, SF_FREE, SF_ALLOCATABLE])
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VALID_STORAGE_TYPES = frozenset([ST_FILE, ST_LVM_PV, ST_LVM_VG])
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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
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# Note: Code depends on LDS_OKAY < LDS_UNKNOWN < LDS_FAULTY
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(LDS_OKAY,
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 LDS_UNKNOWN,
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 LDS_FAULTY) = range(1, 4)
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# disk template types
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DT_DISKLESS = "diskless"
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DT_PLAIN = "plain"
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DT_DRBD8 = "drbd"
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DT_FILE = "file"
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# the set of network-mirrored disk templates
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DTS_NET_MIRROR = frozenset([DT_DRBD8])
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# the set of non-lvm-based disk templates
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DTS_NOT_LVM = frozenset([DT_DISKLESS, DT_FILE])
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# the set of disk templates which can be grown
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DTS_GROWABLE = frozenset([DT_PLAIN, DT_DRBD8, DT_FILE])
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# logical disk types
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LD_LV = "lvm"
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LD_DRBD8 = "drbd8"
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LD_FILE = "file"
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LDS_BLOCK = frozenset([LD_LV, LD_DRBD8])
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# drbd constants
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DRBD_HMAC_ALG = "md5"
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DRBD_NET_PROTOCOL = "C"
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DRBD_BARRIERS = _autoconf.DRBD_BARRIERS
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# file backend driver
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FD_LOOP = "loop"
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FD_BLKTAP = "blktap"
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# the set of drbd-like disk types
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LDS_DRBD = frozenset([LD_DRBD8])
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# disk access mode
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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
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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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# lock recalculate mode
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LOCKS_REPLACE = 'replace'
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LOCKS_APPEND = 'append'
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# instance creation modes
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INSTANCE_CREATE = "create"
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INSTANCE_IMPORT = "import"
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DISK_TEMPLATES = frozenset([DT_DISKLESS, DT_PLAIN,
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                            DT_DRBD8, DT_FILE])
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FILE_DRIVER = frozenset([FD_LOOP, FD_BLKTAP])
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# import/export config options
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INISECT_EXP = "export"
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INISECT_INS = "instance"
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INISECT_HYP = "hypervisor"
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INISECT_BEP = "backend"
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# dynamic device modification
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DDM_ADD = 'add'
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DDM_REMOVE = 'remove'
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# common exit codes
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EXIT_SUCCESS = 0
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EXIT_FAILURE = 1
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EXIT_NOTCLUSTER = 5
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EXIT_NOTMASTER = 11
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EXIT_NODESETUP_ERROR = 12
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EXIT_CONFIRMATION = 13 # need user confirmation
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# tags
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TAG_CLUSTER = "cluster"
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TAG_NODE = "node"
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TAG_INSTANCE = "instance"
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MAX_TAG_LEN = 128
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MAX_TAGS_PER_OBJ = 4096
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# others
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DEFAULT_BRIDGE = "xen-br0"
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SYNC_SPEED = 60 * 1024
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LOCALHOST_IP_ADDRESS = "127.0.0.1"
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TCP_PING_TIMEOUT = 10
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GANETI_RUNAS = "root"
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DEFAULT_VG = "xenvg"
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BIND_ADDRESS_GLOBAL = "0.0.0.0"
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MIN_VG_SIZE = 20480
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DEFAULT_MAC_PREFIX = "aa:00:00"
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LVM_STRIPECOUNT = _autoconf.LVM_STRIPECOUNT
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# default maximum instance wait time, in seconds.
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DEFAULT_SHUTDOWN_TIMEOUT = 120
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NODE_MAX_CLOCK_SKEW = 150
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# runparts results
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(RUNPARTS_SKIP,
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 RUNPARTS_RUN,
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 RUNPARTS_ERR) = range(3)
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RUNPARTS_STATUS = frozenset([RUNPARTS_SKIP, RUNPARTS_RUN, RUNPARTS_ERR])
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# RPC constants
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(RPC_ENCODING_NONE,
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 RPC_ENCODING_ZLIB_BASE64) = range(2)
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# os related constants
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OS_SCRIPT_CREATE = 'create'
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OS_SCRIPT_IMPORT = 'import'
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OS_SCRIPT_EXPORT = 'export'
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OS_SCRIPT_RENAME = 'rename'
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OS_SCRIPTS = frozenset([OS_SCRIPT_CREATE, OS_SCRIPT_IMPORT,
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                        OS_SCRIPT_EXPORT, OS_SCRIPT_RENAME])
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OS_API_FILE = 'ganeti_api_version'
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OS_VARIANTS_FILE = 'variants.list'
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# ssh constants
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SSH_CONFIG_DIR = _autoconf.SSH_CONFIG_DIR
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SSH_HOST_DSA_PRIV = SSH_CONFIG_DIR + "/ssh_host_dsa_key"
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SSH_HOST_DSA_PUB = SSH_HOST_DSA_PRIV + ".pub"
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SSH_HOST_RSA_PRIV = SSH_CONFIG_DIR + "/ssh_host_rsa_key"
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SSH_HOST_RSA_PUB = SSH_HOST_RSA_PRIV + ".pub"
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SSH = "ssh"
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SCP = "scp"
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# reboot types
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INSTANCE_REBOOT_SOFT = "soft"
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INSTANCE_REBOOT_HARD = "hard"
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INSTANCE_REBOOT_FULL = "full"
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REBOOT_TYPES = frozenset([INSTANCE_REBOOT_SOFT,
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                          INSTANCE_REBOOT_HARD,
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                          INSTANCE_REBOOT_FULL])
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VTYPE_STRING = 'string'
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VTYPE_BOOL = 'bool'
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VTYPE_SIZE = 'size' # size, in MiBs
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VTYPE_INT = 'int'
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ENFORCEABLE_TYPES = frozenset([
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                      VTYPE_STRING,
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                      VTYPE_BOOL,
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                      VTYPE_SIZE,
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                      VTYPE_INT,
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                      ])
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# HV parameter names (global namespace)
409
HV_BOOT_ORDER = "boot_order"
410
HV_CDROM_IMAGE_PATH = "cdrom_image_path"
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HV_NIC_TYPE = "nic_type"
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HV_DISK_TYPE = "disk_type"
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HV_VNC_BIND_ADDRESS = "vnc_bind_address"
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HV_VNC_PASSWORD_FILE = "vnc_password_file"
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HV_VNC_TLS = "vnc_tls"
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HV_VNC_X509 = "vnc_x509_path"
417
HV_VNC_X509_VERIFY = "vnc_x509_verify"
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HV_ACPI = "acpi"
419
HV_PAE = "pae"
420
HV_USE_BOOTLOADER = "use_bootloader"
421
HV_BOOTLOADER_ARGS = "bootloader_args"
422
HV_BOOTLOADER_PATH = "bootloader_path"
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HV_KERNEL_ARGS = "kernel_args"
424
HV_KERNEL_PATH = "kernel_path"
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HV_INITRD_PATH = "initrd_path"
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HV_ROOT_PATH = "root_path"
427
HV_SERIAL_CONSOLE = "serial_console"
428
HV_USB_MOUSE = "usb_mouse"
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HV_DEVICE_MODEL = "device_model"
430
HV_INIT_SCRIPT = "init_script"
431
HV_MIGRATION_PORT = "migration_port"
432
HV_USE_LOCALTIME = "use_localtime"
433
HV_DISK_CACHE = "disk_cache"
434
HV_SECURITY_MODEL = "security_model"
435
HV_SECURITY_DOMAIN = "security_domain"
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HV_KVM_FLAG = "kvm_flag"
437

    
438
HVS_PARAMETER_TYPES = {
439
  HV_BOOT_ORDER: VTYPE_STRING,
440
  HV_CDROM_IMAGE_PATH: VTYPE_STRING,
441
  HV_NIC_TYPE: VTYPE_STRING,
442
  HV_DISK_TYPE: VTYPE_STRING,
443
  HV_VNC_PASSWORD_FILE: VTYPE_STRING,
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  HV_VNC_BIND_ADDRESS: VTYPE_STRING,
445
  HV_VNC_TLS: VTYPE_BOOL,
446
  HV_VNC_X509: VTYPE_STRING,
447
  HV_VNC_X509_VERIFY: VTYPE_BOOL,
448
  HV_ACPI: VTYPE_BOOL,
449
  HV_PAE: VTYPE_BOOL,
450
  HV_USE_BOOTLOADER: VTYPE_BOOL,
451
  HV_BOOTLOADER_PATH: VTYPE_STRING,
452
  HV_BOOTLOADER_ARGS: VTYPE_STRING,
453
  HV_KERNEL_PATH: VTYPE_STRING,
454
  HV_KERNEL_ARGS: VTYPE_STRING,
455
  HV_INITRD_PATH: VTYPE_STRING,
456
  HV_ROOT_PATH: VTYPE_STRING,
457
  HV_SERIAL_CONSOLE: VTYPE_BOOL,
458
  HV_USB_MOUSE: VTYPE_STRING,
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  HV_DEVICE_MODEL: VTYPE_STRING,
460
  HV_INIT_SCRIPT: VTYPE_STRING,
461
  HV_MIGRATION_PORT: VTYPE_INT,
462
  HV_USE_LOCALTIME: VTYPE_BOOL,
463
  HV_DISK_CACHE: VTYPE_STRING,
464
  HV_SECURITY_MODEL: VTYPE_STRING,
465
  HV_SECURITY_DOMAIN: VTYPE_STRING,
466
  HV_KVM_FLAG: VTYPE_STRING,
467
  }
468

    
469
HVS_PARAMETERS = frozenset(HVS_PARAMETER_TYPES.keys())
470

    
471
# BE parameter names
472
BE_MEMORY = "memory"
473
BE_VCPUS = "vcpus"
474
BE_AUTO_BALANCE = "auto_balance"
475

    
476
BES_PARAMETER_TYPES = {
477
    BE_MEMORY: VTYPE_SIZE,
478
    BE_VCPUS: VTYPE_INT,
479
    BE_AUTO_BALANCE: VTYPE_BOOL,
480
    }
481

    
482
BES_PARAMETERS = frozenset(BES_PARAMETER_TYPES.keys())
483

    
484
# Instance Parameters Profile
485
PP_DEFAULT = "default"
486

    
487
NIC_MODE = "mode"
488
NIC_LINK = "link"
489

    
490
NIC_MODE_BRIDGED = "bridged"
491
NIC_MODE_ROUTED = "routed"
492

    
493
NIC_VALID_MODES = frozenset([NIC_MODE_BRIDGED, NIC_MODE_ROUTED])
494

    
495
NICS_PARAMETER_TYPES = {
496
    NIC_MODE: VTYPE_STRING,
497
    NIC_LINK: VTYPE_STRING,
498
    }
499

    
500
NICS_PARAMETERS = frozenset(NICS_PARAMETER_TYPES.keys())
501

    
502
# Hypervisor constants
503
HT_XEN_PVM = "xen-pvm"
504
HT_FAKE = "fake"
505
HT_XEN_HVM = "xen-hvm"
506
HT_KVM = "kvm"
507
HT_CHROOT = "chroot"
508
HYPER_TYPES = frozenset([HT_XEN_PVM, HT_FAKE, HT_XEN_HVM, HT_KVM, HT_CHROOT])
509
HTS_REQ_PORT = frozenset([HT_XEN_HVM, HT_KVM])
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511
VNC_BASE_PORT = 5900
512
VNC_PASSWORD_FILE = CONF_DIR + "/vnc-cluster-password"
513
VNC_DEFAULT_BIND_ADDRESS = '0.0.0.0'
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515
# NIC types
516
HT_NIC_RTL8139 = "rtl8139"
517
HT_NIC_NE2K_PCI = "ne2k_pci"
518
HT_NIC_NE2K_ISA = "ne2k_isa"
519
HT_NIC_I82551 = "i82551"
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HT_NIC_I85557B = "i82557b"
521
HT_NIC_I8259ER = "i82559er"
522
HT_NIC_PCNET = "pcnet"
523
HT_NIC_E1000 = "e1000"
524
HT_NIC_PARAVIRTUAL = HT_DISK_PARAVIRTUAL = "paravirtual"
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526
HT_HVM_VALID_NIC_TYPES = frozenset([HT_NIC_RTL8139, HT_NIC_NE2K_PCI,
527
                                    HT_NIC_NE2K_ISA, HT_NIC_PARAVIRTUAL])
528
HT_KVM_VALID_NIC_TYPES = frozenset([HT_NIC_RTL8139, HT_NIC_NE2K_PCI,
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                                    HT_NIC_NE2K_ISA, HT_NIC_I82551,
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                                    HT_NIC_I85557B, HT_NIC_I8259ER,
531
                                    HT_NIC_PCNET, HT_NIC_E1000,
532
                                    HT_NIC_PARAVIRTUAL])
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# Disk types
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HT_DISK_IOEMU = "ioemu"
535
HT_DISK_IDE = "ide"
536
HT_DISK_SCSI = "scsi"
537
HT_DISK_SD = "sd"
538
HT_DISK_MTD = "mtd"
539
HT_DISK_PFLASH = "pflash"
540

    
541
HT_CACHE_DEFAULT = "default"
542
HT_CACHE_NONE = "none"
543
HT_CACHE_WTHROUGH = "writethrough"
544
HT_CACHE_WBACK = "writeback"
545
HT_VALID_CACHE_TYPES = frozenset([HT_CACHE_DEFAULT,
546
                                  HT_CACHE_NONE,
547
                                  HT_CACHE_WTHROUGH,
548
                                  HT_CACHE_WBACK])
549

    
550
HT_HVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IOEMU])
551
HT_KVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IDE,
552
                                     HT_DISK_SCSI, HT_DISK_SD, HT_DISK_MTD,
553
                                     HT_DISK_PFLASH])
554

    
555
# Mouse types:
556
HT_MOUSE_MOUSE = "mouse"
557
HT_MOUSE_TABLET = "tablet"
558

    
559
HT_KVM_VALID_MOUSE_TYPES = frozenset([HT_MOUSE_MOUSE, HT_MOUSE_TABLET])
560

    
561
# Boot order
562
HT_BO_CDROM = "cdrom"
563
HT_BO_DISK = "disk"
564
HT_BO_NETWORK = "network"
565

    
566
HT_KVM_VALID_BO_TYPES = frozenset([HT_BO_CDROM, HT_BO_DISK, HT_BO_NETWORK])
567

    
568
# Security models
569
HT_SM_NONE = "none"
570
HT_SM_USER = "user"
571
HT_SM_POOL = "pool"
572

    
573
HT_KVM_VALID_SM_TYPES = frozenset([HT_SM_NONE, HT_SM_USER, HT_SM_POOL])
574

    
575
# Kvm flag values
576
HT_KVM_ENABLED = "enabled"
577
HT_KVM_DISABLED = "disabled"
578

    
579
HT_KVM_FLAG_VALUES = frozenset([HT_KVM_ENABLED, HT_KVM_DISABLED])
580

    
581
# Cluster Verify steps
582
VERIFY_NPLUSONE_MEM = 'nplusone_mem'
583
VERIFY_OPTIONAL_CHECKS = frozenset([VERIFY_NPLUSONE_MEM])
584

    
585
# Node verify constants
586
NV_FILELIST = "filelist"
587
NV_HVINFO = "hvinfo"
588
NV_HYPERVISOR = "hypervisor"
589
NV_INSTANCELIST = "instancelist"
590
NV_NODELIST = "nodelist"
591
NV_NODENETTEST = "node-net-test"
592
NV_VERSION = "version"
593
NV_VGLIST = "vglist"
594
NV_LVLIST = "lvlist"
595
NV_PVLIST = "pvlist"
596
NV_DRBDLIST = "drbd-list"
597
NV_NODESETUP = "nodesetup"
598
NV_TIME = "time"
599

    
600
# SSL certificate check constants (in days)
601
SSL_CERT_EXPIRATION_WARN = 30
602
SSL_CERT_EXPIRATION_ERROR = 7
603

    
604
# Allocator framework constants
605
IALLOCATOR_VERSION = 2
606
IALLOCATOR_DIR_IN = "in"
607
IALLOCATOR_DIR_OUT = "out"
608
IALLOCATOR_MODE_ALLOC = "allocate"
609
IALLOCATOR_MODE_RELOC = "relocate"
610
IALLOCATOR_MODE_MEVAC = "multi-evacuate"
611
IALLOCATOR_SEARCH_PATH = _autoconf.IALLOCATOR_SEARCH_PATH
612

    
613
# Job queue
614
JOB_QUEUE_VERSION = 1
615
JOB_QUEUE_LOCK_FILE = QUEUE_DIR + "/lock"
616
JOB_QUEUE_VERSION_FILE = QUEUE_DIR + "/version"
617
JOB_QUEUE_SERIAL_FILE = QUEUE_DIR + "/serial"
618
JOB_QUEUE_ARCHIVE_DIR = QUEUE_DIR + "/archive"
619
JOB_QUEUE_DRAIN_FILE = QUEUE_DIR + "/drain"
620
JOB_QUEUE_SIZE_HARD_LIMIT = 5000
621
JOB_QUEUE_SIZE_SOFT_LIMIT = JOB_QUEUE_SIZE_HARD_LIMIT * 0.8
622
JOB_QUEUE_DIRS = [QUEUE_DIR, JOB_QUEUE_ARCHIVE_DIR]
623
JOB_QUEUE_DIRS_MODE = 0700
624

    
625
JOB_ID_TEMPLATE = r"\d+"
626

    
627
# unchanged job return
628
JOB_NOTCHANGED = "nochange"
629

    
630
# Job status
631
JOB_STATUS_QUEUED = "queued"
632
JOB_STATUS_WAITLOCK = "waiting"
633
JOB_STATUS_CANCELING = "canceling"
634
JOB_STATUS_RUNNING = "running"
635
JOB_STATUS_CANCELED = "canceled"
636
JOB_STATUS_SUCCESS = "success"
637
JOB_STATUS_ERROR = "error"
638

    
639
# OpCode status
640
# not yet finalized
641
OP_STATUS_QUEUED = "queued"
642
OP_STATUS_WAITLOCK = "waiting"
643
OP_STATUS_CANCELING = "canceling"
644
OP_STATUS_RUNNING = "running"
645
# finalized
646
OP_STATUS_CANCELED = "canceled"
647
OP_STATUS_SUCCESS = "success"
648
OP_STATUS_ERROR = "error"
649
OPS_FINALIZED = frozenset([OP_STATUS_CANCELED,
650
                           OP_STATUS_SUCCESS,
651
                           OP_STATUS_ERROR])
652

    
653
# Execution log types
654
ELOG_MESSAGE = "message"
655
ELOG_PROGRESS = "progress"
656

    
657
# max dynamic devices
658
MAX_NICS = 8
659
MAX_DISKS = 16
660

    
661
# SSCONF keys
662
SS_CLUSTER_NAME = "cluster_name"
663
SS_CLUSTER_TAGS = "cluster_tags"
664
SS_FILE_STORAGE_DIR = "file_storage_dir"
665
SS_MASTER_CANDIDATES = "master_candidates"
666
SS_MASTER_CANDIDATES_IPS = "master_candidates_ips"
667
SS_MASTER_IP = "master_ip"
668
SS_MASTER_NETDEV = "master_netdev"
669
SS_MASTER_NODE = "master_node"
670
SS_NODE_LIST = "node_list"
671
SS_NODE_PRIMARY_IPS = "node_primary_ips"
672
SS_NODE_SECONDARY_IPS = "node_secondary_ips"
673
SS_OFFLINE_NODES = "offline_nodes"
674
SS_ONLINE_NODES = "online_nodes"
675
SS_INSTANCE_LIST = "instance_list"
676
SS_RELEASE_VERSION = "release_version"
677
SS_HYPERVISOR_LIST = "hypervisor_list"
678
SS_MAINTAIN_NODE_HEALTH = "maintain_node_health"
679
SS_UID_POOL = "uid_pool"
680

    
681
# cluster wide default parameters
682
DEFAULT_ENABLED_HYPERVISOR = HT_XEN_PVM
683

    
684
HVC_DEFAULTS = {
685
  HT_XEN_PVM: {
686
    HV_USE_BOOTLOADER: False,
687
    HV_BOOTLOADER_PATH: XEN_BOOTLOADER,
688
    HV_BOOTLOADER_ARGS: '',
689
    HV_KERNEL_PATH: "/boot/vmlinuz-2.6-xenU",
690
    HV_INITRD_PATH: '',
691
    HV_ROOT_PATH: '/dev/sda1',
692
    HV_KERNEL_ARGS: 'ro',
693
    HV_MIGRATION_PORT: 8002,
694
    },
695
  HT_XEN_HVM: {
696
    HV_BOOT_ORDER: "cd",
697
    HV_CDROM_IMAGE_PATH: '',
698
    HV_NIC_TYPE: HT_NIC_RTL8139,
699
    HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
700
    HV_VNC_BIND_ADDRESS: '0.0.0.0',
701
    HV_VNC_PASSWORD_FILE: VNC_PASSWORD_FILE,
702
    HV_ACPI: True,
703
    HV_PAE: True,
704
    HV_KERNEL_PATH: "/usr/lib/xen/boot/hvmloader",
705
    HV_DEVICE_MODEL: "/usr/lib/xen/bin/qemu-dm",
706
    HV_MIGRATION_PORT: 8002,
707
    HV_USE_LOCALTIME: False,
708
    },
709
  HT_KVM: {
710
    HV_KERNEL_PATH: "/boot/vmlinuz-2.6-kvmU",
711
    HV_INITRD_PATH: '',
712
    HV_KERNEL_ARGS: 'ro',
713
    HV_ROOT_PATH: '/dev/vda1',
714
    HV_ACPI: True,
715
    HV_SERIAL_CONSOLE: True,
716
    HV_VNC_BIND_ADDRESS: '',
717
    HV_VNC_TLS: False,
718
    HV_VNC_X509: '',
719
    HV_VNC_X509_VERIFY: False,
720
    HV_VNC_PASSWORD_FILE: '',
721
    HV_CDROM_IMAGE_PATH: '',
722
    HV_BOOT_ORDER: HT_BO_DISK,
723
    HV_NIC_TYPE: HT_NIC_PARAVIRTUAL,
724
    HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
725
    HV_USB_MOUSE: '',
726
    HV_MIGRATION_PORT: 8102,
727
    HV_USE_LOCALTIME: False,
728
    HV_DISK_CACHE: HT_CACHE_DEFAULT,
729
    HV_SECURITY_MODEL: HT_SM_NONE,
730
    HV_SECURITY_DOMAIN: '',
731
    HV_KVM_FLAG: "",
732
    },
733
  HT_FAKE: {
734
    },
735
  HT_CHROOT: {
736
    HV_INIT_SCRIPT: "/ganeti-chroot",
737
    },
738
  }
739

    
740
HVC_GLOBALS = frozenset([
741
  HV_MIGRATION_PORT,
742
  ])
743

    
744
BEC_DEFAULTS = {
745
  BE_MEMORY: 128,
746
  BE_VCPUS: 1,
747
  BE_AUTO_BALANCE: True,
748
  }
749

    
750
NICC_DEFAULTS = {
751
  NIC_MODE: NIC_MODE_BRIDGED,
752
  NIC_LINK: DEFAULT_BRIDGE,
753
  }
754

    
755
MASTER_POOL_SIZE_DEFAULT = 10
756

    
757
CONFD_PROTOCOL_VERSION = 1
758

    
759
CONFD_REQ_PING = 0
760
CONFD_REQ_NODE_ROLE_BYNAME = 1
761
CONFD_REQ_NODE_PIP_BY_INSTANCE_IP = 2
762
CONFD_REQ_CLUSTER_MASTER = 3
763
CONFD_REQ_NODE_PIP_LIST = 4
764
CONFD_REQ_MC_PIP_LIST = 5
765
CONFD_REQ_INSTANCES_IPS_LIST = 6
766

    
767
# Confd request query fields. These are used to narrow down queries.
768
# These must be strings rather than integers, because json-encoding
769
# converts them to strings anyway, as they're used as dict-keys.
770
CONFD_REQQ_LINK = "0"
771
CONFD_REQQ_IP = "1"
772
CONFD_REQQ_IPLIST = "2"
773
CONFD_REQQ_FIELDS = "3"
774

    
775
CONFD_REQFIELD_NAME = "0"
776
CONFD_REQFIELD_IP = "1"
777
CONFD_REQFIELD_MNODE_PIP = "2"
778

    
779
CONFD_REQS = frozenset([
780
  CONFD_REQ_PING,
781
  CONFD_REQ_NODE_ROLE_BYNAME,
782
  CONFD_REQ_NODE_PIP_BY_INSTANCE_IP,
783
  CONFD_REQ_CLUSTER_MASTER,
784
  CONFD_REQ_NODE_PIP_LIST,
785
  CONFD_REQ_MC_PIP_LIST,
786
  CONFD_REQ_INSTANCES_IPS_LIST,
787
  ])
788

    
789
CONFD_REPL_STATUS_OK = 0
790
CONFD_REPL_STATUS_ERROR = 1
791
CONFD_REPL_STATUS_NOTIMPLEMENTED = 2
792

    
793
CONFD_REPL_STATUSES = frozenset([
794
  CONFD_REPL_STATUS_OK,
795
  CONFD_REPL_STATUS_ERROR,
796
  CONFD_REPL_STATUS_NOTIMPLEMENTED,
797
  ])
798

    
799
(CONFD_NODE_ROLE_MASTER,
800
 CONFD_NODE_ROLE_CANDIDATE,
801
 CONFD_NODE_ROLE_OFFLINE,
802
 CONFD_NODE_ROLE_DRAINED,
803
 CONFD_NODE_ROLE_REGULAR,
804
 ) = range(5)
805

    
806
# A few common errors for confd
807
CONFD_ERROR_UNKNOWN_ENTRY = 1
808
CONFD_ERROR_INTERNAL = 2
809
CONFD_ERROR_ARGUMENT = 3
810

    
811
# Each request is "salted" by the current timestamp.
812
# This constants decides how many seconds of skew to accept.
813
# TODO: make this a default and allow the value to be more configurable
814
CONFD_MAX_CLOCK_SKEW = 2 * NODE_MAX_CLOCK_SKEW
815

    
816
# When we haven't reloaded the config for more than this amount of seconds, we
817
# force a test to see if inotify is betraying us.
818
CONFD_CONFIG_RELOAD_TIMEOUT = 60
819

    
820
# If we receive more than one update in this amount of seconds, we move to
821
# polling every RATELIMIT seconds, rather than relying on inotify, to be able
822
# to serve more requests.
823
CONFD_CONFIG_RELOAD_RATELIMIT = 2
824

    
825
# Magic number prepended to all confd queries.
826
# This allows us to distinguish different types of confd protocols and handle
827
# them. For example by changing this we can move the whole payload to be
828
# compressed, or move away from json.
829
CONFD_MAGIC_FOURCC = 'plj0'
830

    
831
# By default a confd request is sent to the minimum between this number and all
832
# MCs. 6 was chosen because even in the case of a disastrous 50% response rate,
833
# we should have enough answers to be able to compare more than one.
834
CONFD_DEFAULT_REQ_COVERAGE = 6
835

    
836
# Timeout in seconds to expire pending query request in the confd client
837
# library. We don't actually expect any answer more than 10 seconds after we
838
# sent a request.
839
CONFD_CLIENT_EXPIRE_TIMEOUT = 10
840

    
841
# Maximum UDP datagram size.
842
# On IPv4: 64K - 20 (ip header size) - 8 (udp header size) = 65507
843
# On IPv6: 64K - 40 (ip6 header size) - 8 (udp header size) = 65487
844
#   (assuming we can't use jumbo frames)
845
# We just set this to 60K, which should be enough
846
MAX_UDP_DATA_SIZE = 61440
847

    
848
# User-id pool minimum/maximum acceptable user-ids.
849
UIDPOOL_UID_MIN = 0
850
UIDPOOL_UID_MAX = 2**32-1 # Assuming 32 bit user-ids
851

    
852
# Name or path of the pgrep command
853
PGREP = "pgrep"