from ganeti import _autoconf
# various versions
-PROTOCOL_VERSION = 13
+PROTOCOL_VERSION = 20
RELEASE_VERSION = _autoconf.PACKAGE_VERSION
-OS_API_VERSION = 10
+OS_API_V10 = 10
+OS_API_V15 = 15
+OS_API_VERSIONS = frozenset([OS_API_V10, OS_API_V15])
EXPORT_VERSION = 0
RAPI_VERSION = 2
CLUSTER_CONF_FILE = DATA_DIR + "/config.data"
SSL_CERT_FILE = DATA_DIR + "/server.pem"
RAPI_CERT_FILE = DATA_DIR + "/rapi.pem"
+HMAC_CLUSTER_KEY = DATA_DIR + "/hmac.key"
WATCHER_STATEFILE = DATA_DIR + "/watcher.data"
+WATCHER_PAUSEFILE = DATA_DIR + "/watcher.pause"
+INSTANCE_UPFILE = RUN_GANETI_DIR + "/instance-status"
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
+SYSCONFDIR = _autoconf.SYSCONFDIR
+TOOLSDIR = _autoconf.TOOLSDIR
+CONF_DIR = SYSCONFDIR + "/ganeti"
MASTER_SOCKET = SOCKET_DIR + "/ganeti-master"
-# PID files
-MASTERD_PID = "ganeti-masterd"
-NODED_PID = "ganeti-noded"
-RAPI_PID = "ganeti-rapi"
+NODE_INITD_SCRIPT = SYSCONFDIR + "/init.d/ganeti"
+
+NODED = "ganeti-noded"
+CONFD = "ganeti-confd"
+RAPI = "ganeti-rapi"
+MASTERD = "ganeti-masterd"
+
+MULTITHREADED_DAEMONS = frozenset([MASTERD])
+
+DAEMONS_SSL = {
+ # daemon-name: (default-cert-path, default-key-path)
+ NODED: (SSL_CERT_FILE, SSL_CERT_FILE),
+ RAPI: (RAPI_CERT_FILE, RAPI_CERT_FILE),
+}
+
+DAEMONS_PORTS = {
+ # daemon-name: ("proto", "default-port")
+ NODED: ("tcp", 1811),
+ CONFD: ("udp", 1814),
+ RAPI: ("tcp", 5080),
+}
+DEFAULT_NODED_PORT = DAEMONS_PORTS[NODED][1]
+DEFAULT_CONFD_PORT = DAEMONS_PORTS[CONFD][1]
+DEFAULT_RAPI_PORT = DAEMONS_PORTS[RAPI][1]
-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/"
+DAEMONS_LOGFILES = {
+ # "daemon-name": "logfile"
+ NODED: LOG_DIR + "node-daemon.log",
+ CONFD: LOG_DIR + "conf-daemon.log",
+ RAPI: LOG_DIR + "rapi-daemon.log",
+ MASTERD: LOG_DIR + "master-daemon.log",
+ }
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"
EXPORT_CONF_FILE = "config.ini"
+XEN_BOOTLOADER = _autoconf.XEN_BOOTLOADER
XEN_KERNEL = _autoconf.XEN_KERNEL
XEN_INITRD = _autoconf.XEN_INITRD
VALUE_FALSE = "false"
# hooks-related constants
-HOOKS_BASE_DIR = _autoconf.SYSCONFDIR + "/ganeti/hooks"
+HOOKS_BASE_DIR = CONF_DIR + "/hooks"
HOOKS_PHASE_PRE = "pre"
HOOKS_PHASE_POST = "post"
HOOKS_NAME_CFGUPDATE = "config-update"
-HOOKS_VERSION = 1
+HOOKS_VERSION = 2
# hooks subject type (what object type does the LU deal with)
HTYPE_CLUSTER = "CLUSTER"
HKR_FAIL = 1
HKR_SUCCESS = 2
+# Storage types
+ST_FILE = "file"
+ST_LVM_PV = "lvm-pv"
+ST_LVM_VG = "lvm-vg"
+
+# Storage fields
+# first two are valid in LU context only, not passed to backend
+SF_NODE = "node"
+SF_TYPE = "type"
+# and the rest are valid in backend
+SF_NAME = "name"
+SF_SIZE = "size"
+SF_FREE = "free"
+SF_USED = "used"
+SF_ALLOCATABLE = "allocatable"
+
+# Storage operations
+SO_FIX_CONSISTENCY = "fix-consistency"
+
+# Available fields per storage type
+VALID_STORAGE_FIELDS = frozenset([SF_NAME, SF_TYPE, SF_SIZE,
+ SF_USED, SF_FREE, SF_ALLOCATABLE])
+
+VALID_STORAGE_TYPES = frozenset([ST_FILE, ST_LVM_PV, ST_LVM_VG])
+
+MODIFIABLE_STORAGE_FIELDS = {
+ ST_LVM_PV: frozenset([SF_ALLOCATABLE]),
+ }
+
+VALID_STORAGE_OPERATIONS = {
+ ST_LVM_VG: frozenset([SO_FIX_CONSISTENCY]),
+ }
+
+# Local disk status
+# Note: Code depends on LDS_OKAY < LDS_UNKNOWN < LDS_FAULTY
+(LDS_OKAY,
+ LDS_UNKNOWN,
+ LDS_FAULTY) = range(1, 4)
+
# disk template types
DT_DISKLESS = "diskless"
DT_PLAIN = "plain"
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
+REPLACE_DISK_AUTO = "replace_auto"
# lock recalculate mode
LOCKS_REPLACE = 'replace'
# common exit codes
EXIT_SUCCESS = 0
EXIT_FAILURE = 1
+EXIT_NOTCLUSTER = 5
EXIT_NOTMASTER = 11
EXIT_NODESETUP_ERROR = 12
EXIT_CONFIRMATION = 13 # need user confirmation
+EXIT_NOTCANDIDATE = 14
# tags
TAG_CLUSTER = "cluster"
BIND_ADDRESS_GLOBAL = "0.0.0.0"
MIN_VG_SIZE = 20480
DEFAULT_MAC_PREFIX = "aa:00:00"
+LVM_STRIPECOUNT = _autoconf.LVM_STRIPECOUNT
+# default maximum instance wait time, in seconds.
+DEFAULT_SHUTDOWN_TIMEOUT = 120
+
# 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_SCRIPTS = frozenset([OS_SCRIPT_CREATE, OS_SCRIPT_IMPORT,
OS_SCRIPT_EXPORT, OS_SCRIPT_RENAME])
+OS_API_FILE = 'ganeti_api_version'
+OS_VARIANTS_FILE = 'variants.list'
+
# ssh constants
SSH_INITD_SCRIPT = _autoconf.SSH_INITD_SCRIPT
SSH_CONFIG_DIR = "/etc/ssh/"
INSTANCE_REBOOT_HARD,
INSTANCE_REBOOT_FULL])
+VTYPE_STRING = 'string'
+VTYPE_BOOL = 'bool'
+VTYPE_SIZE = 'size' # size, in MiBs
+VTYPE_INT = 'int'
+ENFORCEABLE_TYPES = frozenset([
+ VTYPE_STRING,
+ VTYPE_BOOL,
+ VTYPE_SIZE,
+ VTYPE_INT,
+ ])
+
# 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_VNC_PASSWORD_FILE = "vnc_password_file"
HV_VNC_TLS = "vnc_tls"
HV_VNC_X509 = "vnc_x509_path"
HV_VNC_X509_VERIFY = "vnc_x509_verify"
HV_ACPI = "acpi"
HV_PAE = "pae"
+HV_USE_BOOTLOADER = "use_bootloader"
+HV_BOOTLOADER_ARGS = "bootloader_args"
+HV_BOOTLOADER_PATH = "bootloader_path"
+HV_KERNEL_ARGS = "kernel_args"
HV_KERNEL_PATH = "kernel_path"
HV_INITRD_PATH = "initrd_path"
HV_ROOT_PATH = "root_path"
HV_SERIAL_CONSOLE = "serial_console"
+HV_USB_MOUSE = "usb_mouse"
+HV_DEVICE_MODEL = "device_model"
+HV_INIT_SCRIPT = "init_script"
+
+HVS_PARAMETER_TYPES = {
+ HV_BOOT_ORDER: VTYPE_STRING,
+ HV_CDROM_IMAGE_PATH: VTYPE_STRING,
+ HV_NIC_TYPE: VTYPE_STRING,
+ HV_DISK_TYPE: VTYPE_STRING,
+ HV_VNC_PASSWORD_FILE: VTYPE_STRING,
+ HV_VNC_BIND_ADDRESS: VTYPE_STRING,
+ HV_VNC_TLS: VTYPE_BOOL,
+ HV_VNC_X509: VTYPE_STRING,
+ HV_VNC_X509_VERIFY: VTYPE_BOOL,
+ HV_ACPI: VTYPE_BOOL,
+ HV_PAE: VTYPE_BOOL,
+ HV_USE_BOOTLOADER: VTYPE_BOOL,
+ HV_BOOTLOADER_PATH: VTYPE_STRING,
+ HV_BOOTLOADER_ARGS: VTYPE_STRING,
+ HV_KERNEL_PATH: VTYPE_STRING,
+ HV_KERNEL_ARGS: VTYPE_STRING,
+ HV_INITRD_PATH: VTYPE_STRING,
+ HV_ROOT_PATH: VTYPE_STRING,
+ HV_SERIAL_CONSOLE: VTYPE_BOOL,
+ HV_USB_MOUSE: VTYPE_STRING,
+ HV_DEVICE_MODEL: VTYPE_STRING,
+ HV_INIT_SCRIPT: VTYPE_STRING,
+ }
-HVS_PARAMETERS = frozenset([
- HV_BOOT_ORDER,
- HV_CDROM_IMAGE_PATH,
- HV_NIC_TYPE,
- HV_DISK_TYPE,
- HV_VNC_BIND_ADDRESS,
- HV_VNC_TLS,
- HV_VNC_X509,
- HV_VNC_X509_VERIFY,
- HV_ACPI,
- HV_PAE,
- HV_KERNEL_PATH,
- HV_INITRD_PATH,
- HV_ROOT_PATH,
- HV_SERIAL_CONSOLE,
- ])
+HVS_PARAMETERS = frozenset(HVS_PARAMETER_TYPES.keys())
# BE parameter names
BE_MEMORY = "memory"
BE_VCPUS = "vcpus"
BE_AUTO_BALANCE = "auto_balance"
-BES_PARAMETERS = frozenset([
- BE_MEMORY,
- BE_VCPUS,
- BE_AUTO_BALANCE,
- ])
+BES_PARAMETER_TYPES = {
+ BE_MEMORY: VTYPE_SIZE,
+ BE_VCPUS: VTYPE_INT,
+ BE_AUTO_BALANCE: VTYPE_BOOL,
+ }
-# BE GROUP
-BEGR_DEFAULT = "default"
+BES_PARAMETERS = frozenset(BES_PARAMETER_TYPES.keys())
+
+# Instance Parameters Profile
+PP_DEFAULT = "default"
+
+NIC_MODE = "mode"
+NIC_LINK = "link"
+
+NIC_MODE_BRIDGED = "bridged"
+NIC_MODE_ROUTED = "routed"
+
+NIC_VALID_MODES = frozenset([NIC_MODE_BRIDGED, NIC_MODE_ROUTED])
+
+NICS_PARAMETER_TYPES = {
+ NIC_MODE: VTYPE_STRING,
+ NIC_LINK: VTYPE_STRING,
+ }
+
+NICS_PARAMETERS = frozenset(NICS_PARAMETER_TYPES.keys())
# 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])
+HT_CHROOT = "chroot"
+HYPER_TYPES = frozenset([HT_XEN_PVM, HT_FAKE, HT_XEN_HVM, HT_KVM, HT_CHROOT])
HTS_REQ_PORT = frozenset([HT_XEN_HVM, HT_KVM])
-HTS_USE_VNC = frozenset([HT_XEN_HVM, HT_KVM])
-HT_HVM_VNC_BASE_PORT = 5900
-VNC_PASSWORD_FILE = _autoconf.SYSCONFDIR + "/ganeti/vnc-cluster-password"
+VNC_BASE_PORT = 5900
+VNC_PASSWORD_FILE = CONF_DIR + "/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])
+# NIC types
+HT_NIC_RTL8139 = "rtl8139"
+HT_NIC_NE2K_PCI = "ne2k_pci"
+HT_NIC_NE2K_ISA = "ne2k_isa"
+HT_NIC_I82551 = "i82551"
+HT_NIC_I85557B = "i82557b"
+HT_NIC_I8259ER = "i82559er"
+HT_NIC_PCNET = "pcnet"
+HT_NIC_E1000 = "e1000"
+HT_NIC_PARAVIRTUAL = HT_DISK_PARAVIRTUAL = "paravirtual"
+
+HT_HVM_VALID_NIC_TYPES = frozenset([HT_NIC_RTL8139, HT_NIC_NE2K_PCI,
+ HT_NIC_NE2K_ISA, HT_NIC_PARAVIRTUAL])
+HT_KVM_VALID_NIC_TYPES = frozenset([HT_NIC_RTL8139, HT_NIC_NE2K_PCI,
+ HT_NIC_NE2K_ISA, HT_NIC_I82551,
+ HT_NIC_I85557B, HT_NIC_I8259ER,
+ HT_NIC_PCNET, HT_NIC_E1000,
+ HT_NIC_PARAVIRTUAL])
+# Disk types
+HT_DISK_IOEMU = "ioemu"
+HT_DISK_IDE = "ide"
+HT_DISK_SCSI = "scsi"
+HT_DISK_SD = "sd"
+HT_DISK_MTD = "mtd"
+HT_DISK_PFLASH = "pflash"
+
+HT_HVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IOEMU])
+HT_KVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IDE,
+ HT_DISK_SCSI, HT_DISK_SD, HT_DISK_MTD,
+ HT_DISK_PFLASH])
+
+# Mouse types:
+HT_MOUSE_MOUSE = "mouse"
+HT_MOUSE_TABLET = "tablet"
+
+HT_KVM_VALID_MOUSE_TYPES = frozenset([HT_MOUSE_MOUSE, HT_MOUSE_TABLET])
+
+# Boot order
+HT_BO_CDROM = "cdrom"
+HT_BO_DISK = "disk"
+HT_BO_NETWORK = "network"
+
+HT_KVM_VALID_BO_TYPES = frozenset([HT_BO_CDROM, HT_BO_DISK, HT_BO_NETWORK])
# Cluster Verify steps
VERIFY_NPLUSONE_MEM = 'nplusone_mem'
NV_VERSION = "version"
NV_VGLIST = "vglist"
NV_DRBDLIST = "drbd-list"
+NV_NODESETUP = "nodesetup"
# Allocator framework constants
+IALLOCATOR_VERSION = 2
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_STATUS_SUCCESS = "success"
JOB_STATUS_ERROR = "error"
+# OpCode status
+# not yet finalized
OP_STATUS_QUEUED = "queued"
OP_STATUS_WAITLOCK = "waiting"
OP_STATUS_CANCELING = "canceling"
OP_STATUS_RUNNING = "running"
+# finalized
OP_STATUS_CANCELED = "canceled"
OP_STATUS_SUCCESS = "success"
OP_STATUS_ERROR = "error"
+OPS_FINALIZED = frozenset([OP_STATUS_CANCELED,
+ OP_STATUS_SUCCESS,
+ OP_STATUS_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 dynamic devices
MAX_NICS = 8
MAX_DISKS = 16
# SSCONF keys
SS_CLUSTER_NAME = "cluster_name"
+SS_CLUSTER_TAGS = "cluster_tags"
SS_FILE_STORAGE_DIR = "file_storage_dir"
SS_MASTER_CANDIDATES = "master_candidates"
+SS_MASTER_CANDIDATES_IPS = "master_candidates_ips"
SS_MASTER_IP = "master_ip"
SS_MASTER_NETDEV = "master_netdev"
SS_MASTER_NODE = "master_node"
SS_NODE_LIST = "node_list"
+SS_NODE_PRIMARY_IPS = "node_primary_ips"
+SS_NODE_SECONDARY_IPS = "node_secondary_ips"
SS_OFFLINE_NODES = "offline_nodes"
SS_ONLINE_NODES = "online_nodes"
SS_INSTANCE_LIST = "instance_list"
HVC_DEFAULTS = {
HT_XEN_PVM: {
+ HV_USE_BOOTLOADER: False,
+ HV_BOOTLOADER_PATH: XEN_BOOTLOADER,
+ HV_BOOTLOADER_ARGS: '',
HV_KERNEL_PATH: "/boot/vmlinuz-2.6-xenU",
- HV_INITRD_PATH: None,
- HV_ROOT_PATH: '/dev/sda',
+ HV_INITRD_PATH: '',
+ HV_ROOT_PATH: '/dev/sda1',
+ HV_KERNEL_ARGS: 'ro',
},
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_CDROM_IMAGE_PATH: '',
+ HV_NIC_TYPE: HT_NIC_RTL8139,
+ HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
HV_VNC_BIND_ADDRESS: '0.0.0.0',
+ HV_VNC_PASSWORD_FILE: VNC_PASSWORD_FILE,
HV_ACPI: True,
HV_PAE: True,
+ HV_KERNEL_PATH: "/usr/lib/xen/boot/hvmloader",
+ HV_DEVICE_MODEL: "/usr/lib/xen/bin/qemu-dm",
},
HT_KVM: {
HV_KERNEL_PATH: "/boot/vmlinuz-2.6-kvmU",
- HV_INITRD_PATH: None,
- HV_ROOT_PATH: '/dev/vda',
+ HV_INITRD_PATH: '',
+ HV_KERNEL_ARGS: 'ro',
+ HV_ROOT_PATH: '/dev/vda1',
HV_ACPI: True,
HV_SERIAL_CONSOLE: True,
- HV_VNC_BIND_ADDRESS: None,
+ HV_VNC_BIND_ADDRESS: '',
HV_VNC_TLS: False,
HV_VNC_X509: '',
HV_VNC_X509_VERIFY: False,
+ HV_VNC_PASSWORD_FILE: '',
+ HV_CDROM_IMAGE_PATH: '',
+ HV_BOOT_ORDER: HT_BO_DISK,
+ HV_NIC_TYPE: HT_NIC_PARAVIRTUAL,
+ HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
+ HV_USB_MOUSE: '',
},
HT_FAKE: {
},
+ HT_CHROOT: {
+ HV_INIT_SCRIPT: "/ganeti-chroot",
+ },
}
BEC_DEFAULTS = {
BE_AUTO_BALANCE: True,
}
+NICC_DEFAULTS = {
+ NIC_MODE: NIC_MODE_BRIDGED,
+ NIC_LINK: DEFAULT_BRIDGE,
+ }
+
MASTER_POOL_SIZE_DEFAULT = 10
+
+CONFD_PROTOCOL_VERSION = 1
+
+CONFD_REQ_PING = 0
+CONFD_REQ_NODE_ROLE_BYNAME = 1
+CONFD_REQ_NODE_PIP_BY_INSTANCE_IP = 2
+CONFD_REQ_CLUSTER_MASTER = 3
+CONFD_REQ_NODE_PIP_LIST = 4
+CONFD_REQ_MC_PIP_LIST = 5
+CONFD_REQ_INSTANCES_IPS_LIST = 6
+
+# Confd request query fields. These are used to narrow down queries.
+# These must be strings rather than integers, because json-encoding
+# converts them to strings anyway, as they're used as dict-keys.
+CONFD_REQQ_LINK = "0"
+CONFD_REQQ_IP = "1"
+CONFD_REQQ_IPLIST = "2"
+
+CONFD_REQS = frozenset([
+ CONFD_REQ_PING,
+ CONFD_REQ_NODE_ROLE_BYNAME,
+ CONFD_REQ_NODE_PIP_BY_INSTANCE_IP,
+ CONFD_REQ_CLUSTER_MASTER,
+ CONFD_REQ_NODE_PIP_LIST,
+ CONFD_REQ_MC_PIP_LIST,
+ CONFD_REQ_INSTANCES_IPS_LIST,
+ ])
+
+CONFD_REPL_STATUS_OK = 0
+CONFD_REPL_STATUS_ERROR = 1
+CONFD_REPL_STATUS_NOTIMPLEMENTED = 2
+
+CONFD_REPL_STATUSES = frozenset([
+ CONFD_REPL_STATUS_OK,
+ CONFD_REPL_STATUS_ERROR,
+ CONFD_REPL_STATUS_NOTIMPLEMENTED,
+ ])
+
+(CONFD_NODE_ROLE_MASTER,
+ CONFD_NODE_ROLE_CANDIDATE,
+ CONFD_NODE_ROLE_OFFLINE,
+ CONFD_NODE_ROLE_DRAINED,
+ CONFD_NODE_ROLE_REGULAR,
+ ) = range(5)
+
+# A few common errors for confd
+CONFD_ERROR_UNKNOWN_ENTRY = 1
+CONFD_ERROR_INTERNAL = 2
+CONFD_ERROR_ARGUMENT = 3
+
+# Each request is "salted" by the current timestamp.
+# This constants decides how many seconds of skew to accept.
+# TODO: make this a default and allow the value to be more configurable
+CONFD_MAX_CLOCK_SKEW = 300
+
+# When we haven't reloaded the config for more than this amount of seconds, we
+# force a test to see if inotify is betraying us.
+CONFD_CONFIG_RELOAD_TIMEOUT = 60
+
+# If we receive more than one update in this amount of seconds, we move to
+# polling every RATELIMIT seconds, rather than relying on inotify, to be able
+# to serve more requests.
+CONFD_CONFIG_RELOAD_RATELIMIT = 2
+
+# Magic number prepended to all confd queries.
+# This allows us to distinguish different types of confd protocols and handle
+# them. For example by changing this we can move the whole payload to be
+# compressed, or move away from json.
+CONFD_MAGIC_FOURCC = 'plj0'
+
+# By default a confd request is sent to the minimum between this number and all
+# MCs. 6 was chosen because even in the case of a disastrous 50% response rate,
+# we should have enough answers to be able to compare more than one.
+CONFD_DEFAULT_REQ_COVERAGE = 6
+
+# Timeout in seconds to expire pending query request in the confd client
+# library. We don't actually expect any answer more than 10 seconds after we
+# sent a request.
+CONFD_CLIENT_EXPIRE_TIMEOUT = 10
+
+# Maximum UDP datagram size.
+# On IPv4: 64K - 20 (ip header size) - 8 (udp header size) = 65507
+# On IPv6: 64K - 40 (ip6 header size) - 8 (udp header size) = 65487
+# (assuming we can't use jumbo frames)
+# We just set this to 60K, which should be enough
+MAX_UDP_DATA_SIZE = 61440
projects / ganeti-local / blobdiff