Synnefo » snf-ganeti

#

#

# Copyright (C) 2006, 2007 Google Inc.

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

# 02110-1301, USA.

"""Module holding different constants."""

from ganeti import _autoconf

# various versions

PROTOCOL_VERSION = 13

RELEASE_VERSION = _autoconf.PACKAGE_VERSION

OS_API_VERSION = 10

EXPORT_VERSION = 0

RAPI_VERSION = 2

# Format for CONFIG_VERSION:

#   01 03 0123 = 01030123

#   ^^ ^^ ^^^^

#   |  |  + Configuration version/revision

#   |  + Minor version

#   + Major version

#

# It stored as an integer. Make sure not to write an octal number.

# BuildVersion and SplitVersion must be in here because we can't import other

# modules. The cfgupgrade tool must be able to read and write version numbers

# and thus requires these functions. To avoid code duplication, they're kept in

# here.

def BuildVersion(major, minor, revision):

  """Calculates int version number from major, minor and revision numbers.

  Returns: int representing version number

  """

  assert isinstance(major, int)

  assert isinstance(minor, int)

  assert isinstance(revision, int)

  return (1000000 * major +

            10000 * minor +

                1 * revision)

def SplitVersion(version):

  """Splits version number stored in an int.

  Returns: tuple; (major, minor, revision)

  """

  assert isinstance(version, int)

  (major, remainder) = divmod(version, 1000000)

  (minor, revision) = divmod(remainder, 10000)

  return (major, minor, revision)

CONFIG_MAJOR = int(_autoconf.VERSION_MAJOR)

CONFIG_MINOR = int(_autoconf.VERSION_MINOR)

CONFIG_REVISION = 0

CONFIG_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, CONFIG_REVISION)

# file paths

DATA_DIR = _autoconf.LOCALSTATEDIR + "/lib/ganeti"

RUN_DIR = _autoconf.LOCALSTATEDIR + "/run"

RUN_GANETI_DIR = RUN_DIR + "/ganeti"

BDEV_CACHE_DIR = RUN_GANETI_DIR + "/bdev-cache"

DISK_LINKS_DIR = RUN_GANETI_DIR + "/instance-disks"

RUN_DIRS_MODE = 0755

SOCKET_DIR = RUN_GANETI_DIR + "/socket"

SOCKET_DIR_MODE = 0700

# keep RUN_GANETI_DIR first here, to make sure all get created when the node

# daemon is started (this takes care of RUN_DIR being tmpfs)

SUB_RUN_DIRS = [ RUN_GANETI_DIR, BDEV_CACHE_DIR, DISK_LINKS_DIR ]

LOCK_DIR = _autoconf.LOCALSTATEDIR + "/lock"

SSCONF_LOCK_FILE = LOCK_DIR + "/ganeti-ssconf.lock"

CLUSTER_CONF_FILE = DATA_DIR + "/config.data"

SSL_CERT_FILE = DATA_DIR + "/server.pem"

RAPI_CERT_FILE = DATA_DIR + "/rapi.pem"

WATCHER_STATEFILE = DATA_DIR + "/watcher.data"

SSH_KNOWN_HOSTS_FILE = DATA_DIR + "/known_hosts"

RAPI_USERS_FILE = DATA_DIR + "/rapi_users"

QUEUE_DIR = DATA_DIR + "/queue"

ETC_HOSTS = "/etc/hosts"

DEFAULT_FILE_STORAGE_DIR = _autoconf.FILE_STORAGE_DIR

MASTER_SOCKET = SOCKET_DIR + "/ganeti-master"

# PID files

MASTERD_PID = "ganeti-masterd"

NODED_PID = "ganeti-noded"

RAPI_PID = "ganeti-rapi"

NODE_INITD_SCRIPT = _autoconf.SYSCONFDIR + "/init.d/ganeti"

DEFAULT_NODED_PORT = 1811

FIRST_DRBD_PORT = 11000

LAST_DRBD_PORT = 14999

MASTER_SCRIPT = "ganeti-master"

LOG_DIR = _autoconf.LOCALSTATEDIR + "/log/ganeti/"

LOG_OS_DIR = LOG_DIR + "os"

LOG_NODESERVER = LOG_DIR + "node-daemon.log"

LOG_WATCHER = LOG_DIR + "watcher.log"

LOG_MASTERDAEMON = LOG_DIR + "master-daemon.log"

LOG_RAPISERVER = LOG_DIR + "rapi-daemon.log"

LOG_COMMANDS = LOG_DIR + "commands.log"

LOG_BURNIN = LOG_DIR + "burnin.log"

OS_SEARCH_PATH = _autoconf.OS_SEARCH_PATH

EXPORT_DIR = _autoconf.EXPORT_DIR

EXPORT_CONF_FILE = "config.ini"

XEN_KERNEL = _autoconf.XEN_KERNEL

XEN_INITRD = _autoconf.XEN_INITRD

KVM_PATH = _autoconf.KVM_PATH

SOCAT_PATH = _autoconf.SOCAT_PATH

VALUE_DEFAULT = "default"

VALUE_AUTO = "auto"

VALUE_GENERATE = "generate"

VALUE_NONE = "none"

VALUE_TRUE = "true"

VALUE_FALSE = "false"

# hooks-related constants

HOOKS_BASE_DIR = _autoconf.SYSCONFDIR + "/ganeti/hooks"

HOOKS_PHASE_PRE = "pre"

HOOKS_PHASE_POST = "post"

HOOKS_NAME_CFGUPDATE = "config-update"

HOOKS_VERSION = 1

# hooks subject type (what object type does the LU deal with)

HTYPE_CLUSTER = "CLUSTER"

HTYPE_NODE = "NODE"

HTYPE_INSTANCE = "INSTANCE"

HKR_SKIP = 0

HKR_FAIL = 1

HKR_SUCCESS = 2

# disk template types

DT_DISKLESS = "diskless"

DT_PLAIN = "plain"

DT_DRBD8 = "drbd"

DT_FILE = "file"

# the set of network-mirrored disk templates

DTS_NET_MIRROR = frozenset([DT_DRBD8])

# the set of non-lvm-based disk templates

DTS_NOT_LVM = frozenset([DT_DISKLESS, DT_FILE])

# logical disk types

LD_LV = "lvm"

LD_DRBD8 = "drbd8"

LD_FILE = "file"

LDS_BLOCK = frozenset([LD_LV, LD_DRBD8])

# drbd constants

DRBD_HMAC_ALG = "md5"

DRBD_NET_PROTOCOL = "C"

# file backend driver

FD_LOOP = "loop"

FD_BLKTAP = "blktap"

# the set of drbd-like disk types

LDS_DRBD = frozenset([LD_DRBD8])

# disk access mode

DISK_RDONLY = "ro"

DISK_RDWR = "rw"

DISK_ACCESS_SET = frozenset([DISK_RDONLY, DISK_RDWR])

# disk replacement mode

REPLACE_DISK_PRI = "replace_on_primary"    # replace disks on primary

REPLACE_DISK_SEC = "replace_on_secondary"  # replace disks on secondary

REPLACE_DISK_CHG = "replace_new_secondary" # change secondary node

# lock recalculate mode

LOCKS_REPLACE = 'replace'

LOCKS_APPEND = 'append'

# instance creation modes

INSTANCE_CREATE = "create"

INSTANCE_IMPORT = "import"

DISK_TEMPLATES = frozenset([DT_DISKLESS, DT_PLAIN,

                            DT_DRBD8, DT_FILE])

FILE_DRIVER = frozenset([FD_LOOP, FD_BLKTAP])

# import/export config options

INISECT_EXP = "export"

INISECT_INS = "instance"

# dynamic device modification

DDM_ADD = 'add'

DDM_REMOVE = 'remove'

# common exit codes

EXIT_SUCCESS = 0

EXIT_FAILURE = 1

EXIT_NOTMASTER = 11

EXIT_NODESETUP_ERROR = 12

EXIT_CONFIRMATION = 13 # need user confirmation

# tags

TAG_CLUSTER = "cluster"

TAG_NODE = "node"

TAG_INSTANCE = "instance"

MAX_TAG_LEN = 128

MAX_TAGS_PER_OBJ = 4096

# others

DEFAULT_BRIDGE = "xen-br0"

SYNC_SPEED = 30 * 1024

LOCALHOST_IP_ADDRESS = "127.0.0.1"

TCP_PING_TIMEOUT = 10

GANETI_RUNAS = "root"

DEFAULT_VG = "xenvg"

BIND_ADDRESS_GLOBAL = "0.0.0.0"

MIN_VG_SIZE = 20480

# RPC constants

(RPC_ENCODING_NONE,

 RPC_ENCODING_ZLIB_BASE64) = range(2)

# os related constants

OS_VALID_STATUS = "VALID"

OS_SCRIPT_CREATE = 'create'

OS_SCRIPT_IMPORT = 'import'

OS_SCRIPT_EXPORT = 'export'

OS_SCRIPT_RENAME = 'rename'

OS_SCRIPTS = frozenset([OS_SCRIPT_CREATE, OS_SCRIPT_IMPORT,

                        OS_SCRIPT_EXPORT, OS_SCRIPT_RENAME])

# ssh constants

SSH_INITD_SCRIPT = _autoconf.SSH_INITD_SCRIPT

SSH_CONFIG_DIR = "/etc/ssh/"

SSH_HOST_DSA_PRIV = SSH_CONFIG_DIR + "ssh_host_dsa_key"

SSH_HOST_DSA_PUB = SSH_HOST_DSA_PRIV + ".pub"

SSH_HOST_RSA_PRIV = SSH_CONFIG_DIR + "ssh_host_rsa_key"

SSH_HOST_RSA_PUB = SSH_HOST_RSA_PRIV + ".pub"

SSH = "ssh"

SCP = "scp"

# reboot types

INSTANCE_REBOOT_SOFT = "soft"

INSTANCE_REBOOT_HARD = "hard"

INSTANCE_REBOOT_FULL = "full"

REBOOT_TYPES = frozenset([INSTANCE_REBOOT_SOFT,

                          INSTANCE_REBOOT_HARD,

                          INSTANCE_REBOOT_FULL])

# HV parameter names (global namespace)

HV_BOOT_ORDER = "boot_order"

HV_CDROM_IMAGE_PATH = "cdrom_image_path"

HV_NIC_TYPE = "nic_type"

HV_DISK_TYPE = "disk_type"

HV_VNC_BIND_ADDRESS = "vnc_bind_address"

HV_ACPI = "acpi"

HV_PAE = "pae"

HV_KERNEL_PATH = "kernel_path"

HV_INITRD_PATH = "initrd_path"

HVS_PARAMETERS = frozenset([

  HV_BOOT_ORDER,

  HV_CDROM_IMAGE_PATH,

  HV_NIC_TYPE,

  HV_DISK_TYPE,

  HV_VNC_BIND_ADDRESS,

  HV_ACPI,

  HV_PAE,

  HV_KERNEL_PATH,

  HV_INITRD_PATH,

  ])

# BE parameter names

BE_MEMORY = "memory"

BE_VCPUS = "vcpus"

BE_AUTO_BALANCE = "auto_balance"

BES_PARAMETERS = frozenset([

  BE_MEMORY,

  BE_VCPUS,

  BE_AUTO_BALANCE,

  ])

# BE GROUP

BEGR_DEFAULT = "default"

# Hypervisor constants

HT_XEN_PVM = "xen-pvm"

HT_FAKE = "fake"

HT_XEN_HVM = "xen-hvm"

HT_KVM = "kvm"

HYPER_TYPES = frozenset([HT_XEN_PVM, HT_FAKE, HT_XEN_HVM, HT_KVM])

HTS_REQ_PORT = frozenset([HT_XEN_HVM])

HT_HVM_VNC_BASE_PORT = 5900

HT_HVM_DEFAULT_BOOT_ORDER = 'dc'

VNC_PASSWORD_FILE = _autoconf.SYSCONFDIR + "/ganeti/vnc-cluster-password"

VNC_DEFAULT_BIND_ADDRESS = '0.0.0.0'

# HVM NIC types

HT_HVM_NIC_RTL8139 = "rtl8139"

HT_HVM_NIC_NE2K_PCI = "ne2k_pci"

HT_HVM_NIC_NE2K_ISA = "ne2k_isa"

HT_HVM_DEV_PARAVIRTUAL = "paravirtual"

HT_HVM_DEV_IOEMU = "ioemu"

HT_HVM_VALID_NIC_TYPES = frozenset([HT_HVM_NIC_RTL8139, HT_HVM_NIC_NE2K_PCI,

                                    HT_HVM_NIC_NE2K_ISA,

                                    HT_HVM_DEV_PARAVIRTUAL])

HT_HVM_VALID_DISK_TYPES = frozenset([HT_HVM_DEV_PARAVIRTUAL, HT_HVM_DEV_IOEMU])

# Cluster Verify steps

VERIFY_NPLUSONE_MEM = 'nplusone_mem'

VERIFY_OPTIONAL_CHECKS = frozenset([VERIFY_NPLUSONE_MEM])

# Node verify constants

NV_FILELIST = "filelist"

NV_HVINFO = "hvinfo"

NV_HYPERVISOR = "hypervisor"

NV_INSTANCELIST = "instancelist"

NV_LVLIST = "lvlist"

NV_NODELIST = "nodelist"

NV_NODENETTEST = "node-net-test"

NV_VERSION = "version"

NV_VGLIST = "vglist"

# Allocator framework constants

IALLOCATOR_DIR_IN = "in"

IALLOCATOR_DIR_OUT = "out"

IALLOCATOR_MODE_ALLOC = "allocate"

IALLOCATOR_MODE_RELOC = "relocate"

IALLOCATOR_SEARCH_PATH = _autoconf.IALLOCATOR_SEARCH_PATH

IARUN_NOTFOUND = 1

IARUN_FAILURE = 2

IARUN_SUCCESS = 3

# Job queue

JOB_QUEUE_VERSION = 1

JOB_QUEUE_LOCK_FILE = QUEUE_DIR + "/lock"

JOB_QUEUE_VERSION_FILE = QUEUE_DIR + "/version"

JOB_QUEUE_SERIAL_FILE = QUEUE_DIR + "/serial"

JOB_QUEUE_ARCHIVE_DIR = QUEUE_DIR + "/archive"

JOB_QUEUE_DRAIN_FILE = QUEUE_DIR + "/drain"

JOB_QUEUE_SIZE_HARD_LIMIT = 5000

JOB_QUEUE_SIZE_SOFT_LIMIT = JOB_QUEUE_SIZE_HARD_LIMIT * 0.8

JOB_ID_TEMPLATE = r"\d+"

# unchanged job return

JOB_NOTCHANGED = "nochange"

# Job status

JOB_STATUS_QUEUED = "queued"

JOB_STATUS_WAITLOCK = "waiting"

JOB_STATUS_CANCELING = "canceling"

JOB_STATUS_RUNNING = "running"

JOB_STATUS_CANCELED = "canceled"

JOB_STATUS_SUCCESS = "success"

JOB_STATUS_ERROR = "error"

OP_STATUS_QUEUED = "queued"

OP_STATUS_WAITLOCK = "waiting"

OP_STATUS_CANCELING = "canceling"

OP_STATUS_RUNNING = "running"

OP_STATUS_CANCELED = "canceled"

OP_STATUS_SUCCESS = "success"

OP_STATUS_ERROR = "error"

# Execution log types

ELOG_MESSAGE = "message"

ELOG_PROGRESS = "progress"

# Temporary RAPI constants until we have cluster parameters

RAPI_ENABLE = True

RAPI_PORT = 5080

# max dynamnic devices

MAX_NICS = 8

MAX_DISKS = 16

# SSCONF keys

SS_CLUSTER_NAME = "cluster_name"

SS_FILE_STORAGE_DIR = "file_storage_dir"

SS_MASTER_CANDIDATES = "master_candidates"

SS_MASTER_IP = "master_ip"

SS_MASTER_NETDEV = "master_netdev"

SS_MASTER_NODE = "master_node"

SS_NODE_LIST = "node_list"

SS_OFFLINE_NODES = "offline_nodes"

SS_RELEASE_VERSION = "release_version"

# cluster wide default parameters

DEFAULT_ENABLED_HYPERVISOR = HT_XEN_PVM

HVC_DEFAULTS = {

    HT_XEN_PVM: {

        HV_KERNEL_PATH: "/boot/vmlinuz-2.6-xenU",

        HV_INITRD_PATH: None,

        },

    HT_XEN_HVM: {

        HV_BOOT_ORDER: "cd",

        HV_CDROM_IMAGE_PATH: None,

        HV_NIC_TYPE: HT_HVM_NIC_RTL8139,

        HV_DISK_TYPE: HT_HVM_DEV_PARAVIRTUAL,

        HV_VNC_BIND_ADDRESS: '0.0.0.0',

        HV_ACPI: True,

        HV_PAE: True,

        },

    HT_KVM: {

        HV_KERNEL_PATH: "/boot/vmlinuz-2.6-kvmU",

        HV_INITRD_PATH: None,

        HV_ACPI: True,

        },

    HT_FAKE: {

        },

    }

BEC_DEFAULTS = {

    BE_MEMORY: 128,

    BE_VCPUS: 1,

    BE_AUTO_BALANCE: True,

    }

MASTER_POOL_SIZE_DEFAULT = 10