4 # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Google Inc.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful, but
12 # WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 # General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22 """Module holding different constants."""
26 from ganeti import _autoconf
27 from ganeti import _vcsversion
30 RELEASE_VERSION = _autoconf.PACKAGE_VERSION
34 OS_API_VERSIONS = frozenset([OS_API_V10, OS_API_V15, OS_API_V20])
35 VCS_VERSION = _vcsversion.VCS_VERSION
40 # Format for CONFIG_VERSION:
41 # 01 03 0123 = 01030123
43 # | | + Configuration version/revision
47 # It stored as an integer. Make sure not to write an octal number.
49 # BuildVersion and SplitVersion must be in here because we can't import other
50 # modules. The cfgupgrade tool must be able to read and write version numbers
51 # and thus requires these functions. To avoid code duplication, they're kept in
54 def BuildVersion(major, minor, revision):
55 """Calculates int version number from major, minor and revision numbers.
57 Returns: int representing version number
60 assert isinstance(major, int)
61 assert isinstance(minor, int)
62 assert isinstance(revision, int)
63 return (1000000 * major +
68 def SplitVersion(version):
69 """Splits version number stored in an int.
71 Returns: tuple; (major, minor, revision)
74 assert isinstance(version, int)
76 (major, remainder) = divmod(version, 1000000)
77 (minor, revision) = divmod(remainder, 10000)
79 return (major, minor, revision)
82 CONFIG_MAJOR = int(_autoconf.VERSION_MAJOR)
83 CONFIG_MINOR = int(_autoconf.VERSION_MINOR)
85 CONFIG_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, CONFIG_REVISION)
87 #: RPC protocol version
88 PROTOCOL_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, 0)
91 DAEMONS_GROUP = _autoconf.DAEMONS_GROUP
92 ADMIN_GROUP = _autoconf.ADMIN_GROUP
93 MASTERD_USER = _autoconf.MASTERD_USER
94 MASTERD_GROUP = _autoconf.MASTERD_GROUP
95 RAPI_USER = _autoconf.RAPI_USER
96 RAPI_GROUP = _autoconf.RAPI_GROUP
97 CONFD_USER = _autoconf.CONFD_USER
98 CONFD_GROUP = _autoconf.CONFD_GROUP
99 NODED_USER = _autoconf.NODED_USER
100 NODED_GROUP = _autoconf.NODED_GROUP
105 WIPE_BLOCK_SIZE = 1024**2
106 MAX_WIPE_CHUNK = 1024 # 1GB
107 MIN_WIPE_CHUNK_PERCENT = 10
111 DATA_DIR = _autoconf.LOCALSTATEDIR + "/lib/ganeti"
112 RUN_DIR = _autoconf.LOCALSTATEDIR + "/run"
113 RUN_GANETI_DIR = RUN_DIR + "/ganeti"
114 BDEV_CACHE_DIR = RUN_GANETI_DIR + "/bdev-cache"
115 DISK_LINKS_DIR = RUN_GANETI_DIR + "/instance-disks"
117 SOCKET_DIR = RUN_GANETI_DIR + "/socket"
118 SECURE_DIR_MODE = 0700
119 SECURE_FILE_MODE = 0600
120 SOCKET_DIR_MODE = 0750
121 CRYPTO_KEYS_DIR = RUN_GANETI_DIR + "/crypto"
122 CRYPTO_KEYS_DIR_MODE = SECURE_DIR_MODE
123 IMPORT_EXPORT_DIR = RUN_GANETI_DIR + "/import-export"
124 IMPORT_EXPORT_DIR_MODE = 0755
125 ADOPTABLE_BLOCKDEV_ROOT = "/dev/disk/"
126 # keep RUN_GANETI_DIR first here, to make sure all get created when the node
127 # daemon is started (this takes care of RUN_DIR being tmpfs)
128 SUB_RUN_DIRS = [ RUN_GANETI_DIR, BDEV_CACHE_DIR, DISK_LINKS_DIR ]
129 LOCK_DIR = _autoconf.LOCALSTATEDIR + "/lock"
130 SSCONF_LOCK_FILE = LOCK_DIR + "/ganeti-ssconf.lock"
131 # User-id pool lock directory
132 # The user-ids that are in use have a corresponding lock file in this directory
133 UIDPOOL_LOCKDIR = RUN_GANETI_DIR + "/uid-pool"
134 CLUSTER_CONF_FILE = DATA_DIR + "/config.data"
135 NODED_CERT_FILE = DATA_DIR + "/server.pem"
136 RAPI_CERT_FILE = DATA_DIR + "/rapi.pem"
137 CONFD_HMAC_KEY = DATA_DIR + "/hmac.key"
138 CLUSTER_DOMAIN_SECRET_FILE = DATA_DIR + "/cluster-domain-secret"
139 WATCHER_STATEFILE = DATA_DIR + "/watcher.data"
140 WATCHER_PAUSEFILE = DATA_DIR + "/watcher.pause"
141 INSTANCE_STATUS_FILE = RUN_GANETI_DIR + "/instance-status"
142 SSH_KNOWN_HOSTS_FILE = DATA_DIR + "/known_hosts"
143 RAPI_USERS_FILE = DATA_DIR + "/rapi/users"
144 QUEUE_DIR = DATA_DIR + "/queue"
145 DAEMON_UTIL = _autoconf.PKGLIBDIR + "/daemon-util"
146 SETUP_SSH = _autoconf.TOOLSDIR + "/setup-ssh"
147 KVM_IFUP = _autoconf.PKGLIBDIR + "/kvm-ifup"
148 KVM_CONSOLE_WRAPPER = _autoconf.PKGLIBDIR + "/tools/kvm-console-wrapper"
149 XM_CONSOLE_WRAPPER = _autoconf.PKGLIBDIR + "/tools/xm-console-wrapper"
150 ETC_HOSTS = "/etc/hosts"
151 DEFAULT_FILE_STORAGE_DIR = _autoconf.FILE_STORAGE_DIR
152 DEFAULT_SHARED_FILE_STORAGE_DIR = _autoconf.SHARED_FILE_STORAGE_DIR
153 ENABLE_FILE_STORAGE = _autoconf.ENABLE_FILE_STORAGE
154 ENABLE_SHARED_FILE_STORAGE = _autoconf.ENABLE_SHARED_FILE_STORAGE
155 SYSCONFDIR = _autoconf.SYSCONFDIR
156 TOOLSDIR = _autoconf.TOOLSDIR
157 CONF_DIR = SYSCONFDIR + "/ganeti"
159 ALL_CERT_FILES = frozenset([NODED_CERT_FILE, RAPI_CERT_FILE])
161 MASTER_SOCKET = SOCKET_DIR + "/ganeti-master"
163 NODED = "ganeti-noded"
164 CONFD = "ganeti-confd"
166 MASTERD = "ganeti-masterd"
167 # used in the ganeti-nbma project
171 # daemon-name: ("proto", "default-port")
172 NODED: ("tcp", 1811),
173 CONFD: ("udp", 1814),
176 # used in the ganeti-nbma project
179 DEFAULT_NODED_PORT = DAEMONS_PORTS[NODED][1]
180 DEFAULT_CONFD_PORT = DAEMONS_PORTS[CONFD][1]
181 DEFAULT_RAPI_PORT = DAEMONS_PORTS[RAPI][1]
182 # used in the ganeti-nbma project
183 DEFAULT_NLD_PORT = DAEMONS_PORTS[NLD][1]
185 FIRST_DRBD_PORT = 11000
186 LAST_DRBD_PORT = 14999
187 MASTER_SCRIPT = "ganeti-master"
189 LOG_DIR = _autoconf.LOCALSTATEDIR + "/log/ganeti/"
191 # "daemon-name": "logfile"
192 NODED: LOG_DIR + "node-daemon.log",
193 CONFD: LOG_DIR + "conf-daemon.log",
194 RAPI: LOG_DIR + "rapi-daemon.log",
195 MASTERD: LOG_DIR + "master-daemon.log",
196 # used in the ganeti-nbma project
197 NLD: LOG_DIR + "nl-daemon.log",
200 LOG_OS_DIR = LOG_DIR + "os"
201 LOG_WATCHER = LOG_DIR + "watcher.log"
202 LOG_COMMANDS = LOG_DIR + "commands.log"
203 LOG_BURNIN = LOG_DIR + "burnin.log"
204 LOG_SETUP_SSH = LOG_DIR + "setup-ssh.log"
206 DEV_CONSOLE = "/dev/console"
208 PROC_MOUNTS = "/proc/mounts"
210 # Local UniX Interface related constants
212 LUXI_VERSION = CONFIG_VERSION
214 # one of "no", "yes", "only"
215 SYSLOG_USAGE = _autoconf.SYSLOG_USAGE
219 SYSLOG_SOCKET = "/dev/log"
221 OS_SEARCH_PATH = _autoconf.OS_SEARCH_PATH
222 EXPORT_DIR = _autoconf.EXPORT_DIR
224 EXPORT_CONF_FILE = "config.ini"
226 XEN_BOOTLOADER = _autoconf.XEN_BOOTLOADER
227 XEN_KERNEL = _autoconf.XEN_KERNEL
228 XEN_INITRD = _autoconf.XEN_INITRD
230 KVM_PATH = _autoconf.KVM_PATH
231 SOCAT_PATH = _autoconf.SOCAT_PATH
232 SOCAT_USE_ESCAPE = _autoconf.SOCAT_USE_ESCAPE
233 SOCAT_USE_COMPRESS = _autoconf.SOCAT_USE_COMPRESS
234 SOCAT_ESCAPE_CODE = "0x1d"
236 #: Console as SSH command
239 #: Console as VNC server
242 #: Display a message for console access
246 CONS_ALL = frozenset([CONS_SSH, CONS_VNC, CONS_MESSAGE])
248 # For RSA keys more bits are better, but they also make operations more
249 # expensive. NIST SP 800-131 recommends a minimum of 2048 bits from the year
253 # Ciphers allowed for SSL connections. For the format, see ciphers(1). A better
254 # way to disable ciphers would be to use the exclamation mark (!), but socat
255 # versions below 1.5 can't parse exclamation marks in options properly. When
256 # modifying the ciphers, ensure not to accidentially add something after it's
257 # been removed. Use the "openssl" utility to check the allowed ciphers, e.g.
258 # "openssl ciphers -v HIGH:-DES".
259 OPENSSL_CIPHERS = "HIGH:-DES:-3DES:-EXPORT:-ADH"
261 # Digest used to sign certificates ("openssl x509" uses SHA1 by default)
262 X509_CERT_SIGN_DIGEST = "SHA1"
264 # Default validity of certificates in days
265 X509_CERT_DEFAULT_VALIDITY = 365 * 5
267 # commonName (CN) used in certificates
268 X509_CERT_CN = "ganeti.example.com"
270 X509_CERT_SIGNATURE_HEADER = "X-Ganeti-Signature"
272 IMPORT_EXPORT_DAEMON = _autoconf.PKGLIBDIR + "/import-export"
274 # Import/export daemon mode
275 IEM_IMPORT = "import"
276 IEM_EXPORT = "export"
278 # Import/export transport compression
281 IEC_ALL = frozenset([
286 IE_CUSTOM_SIZE = "fd"
288 IE_MAGIC_RE = re.compile(r"^[-_.a-zA-Z0-9]{5,100}$")
291 # Direct file I/O, equivalent to a shell's I/O redirection using '<' or '>'
293 # Raw block device I/O using "dd"
294 IEIO_RAW_DISK = "raw"
295 # OS definition import/export script
296 IEIO_SCRIPT = "script"
298 VALUE_DEFAULT = "default"
300 VALUE_GENERATE = "generate"
303 VALUE_FALSE = "false"
305 # External script validation mask
306 EXT_PLUGIN_MASK = re.compile("^[a-zA-Z0-9_-]+$")
308 # hooks-related constants
309 HOOKS_BASE_DIR = CONF_DIR + "/hooks"
310 HOOKS_PHASE_PRE = "pre"
311 HOOKS_PHASE_POST = "post"
312 HOOKS_NAME_CFGUPDATE = "config-update"
313 HOOKS_NAME_WATCHER = "watcher"
316 # hooks subject type (what object type does the LU deal with)
317 HTYPE_CLUSTER = "CLUSTER"
319 HTYPE_GROUP = "GROUP"
320 HTYPE_INSTANCE = "INSTANCE"
332 # first two are valid in LU context only, not passed to backend
335 # and the rest are valid in backend
340 SF_ALLOCATABLE = "allocatable"
343 SO_FIX_CONSISTENCY = "fix-consistency"
345 # Available fields per storage type
346 VALID_STORAGE_FIELDS = frozenset([SF_NAME, SF_TYPE, SF_SIZE,
347 SF_USED, SF_FREE, SF_ALLOCATABLE])
349 VALID_STORAGE_TYPES = frozenset([ST_FILE, ST_LVM_PV, ST_LVM_VG])
351 MODIFIABLE_STORAGE_FIELDS = {
352 ST_LVM_PV: frozenset([SF_ALLOCATABLE]),
355 VALID_STORAGE_OPERATIONS = {
356 ST_LVM_VG: frozenset([SO_FIX_CONSISTENCY]),
360 # Note: Code depends on LDS_OKAY < LDS_UNKNOWN < LDS_FAULTY
363 LDS_FAULTY) = range(1, 4)
365 # disk template types
366 DT_DISKLESS = "diskless"
370 DT_SHARED_FILE = "sharedfile"
371 DT_BLOCK = "blockdev"
373 # the set of network-mirrored disk templates
374 DTS_INT_MIRROR = frozenset([DT_DRBD8])
376 # the set of externally-mirrored disk templates (e.g. SAN, NAS)
377 DTS_EXT_MIRROR = frozenset([DT_SHARED_FILE, DT_BLOCK])
379 # the set of non-lvm-based disk templates
380 DTS_NOT_LVM = frozenset([DT_DISKLESS, DT_FILE, DT_SHARED_FILE, DT_BLOCK])
382 # the set of disk templates which can be grown
383 DTS_GROWABLE = frozenset([DT_PLAIN, DT_DRBD8, DT_FILE, DT_SHARED_FILE])
385 # the set of disk templates that allow adoption
386 DTS_MAY_ADOPT = frozenset([DT_PLAIN, DT_BLOCK])
388 # the set of disk templates that *must* use adoption
389 DTS_MUST_ADOPT = frozenset([DT_BLOCK])
391 # the set of disk templates that allow migrations
392 DTS_MIRRORED = frozenset.union(DTS_INT_MIRROR, DTS_EXT_MIRROR)
394 # the set of file based disk templates
395 DTS_FILEBASED = frozenset([DT_FILE, DT_SHARED_FILE])
401 LD_BLOCKDEV = "blockdev"
402 LDS_BLOCK = frozenset([LD_LV, LD_DRBD8, LD_BLOCKDEV])
405 DRBD_HMAC_ALG = "md5"
406 DRBD_NET_PROTOCOL = "C"
407 DRBD_BARRIERS = _autoconf.DRBD_BARRIERS
409 # file backend driver
413 # the set of drbd-like disk types
414 LDS_DRBD = frozenset([LD_DRBD8])
419 DISK_ACCESS_SET = frozenset([DISK_RDONLY, DISK_RDWR])
421 # disk replacement mode
422 REPLACE_DISK_PRI = "replace_on_primary" # replace disks on primary
423 REPLACE_DISK_SEC = "replace_on_secondary" # replace disks on secondary
424 REPLACE_DISK_CHG = "replace_new_secondary" # change secondary node
425 REPLACE_DISK_AUTO = "replace_auto"
426 REPLACE_MODES = frozenset([
433 # Instance export mode
434 EXPORT_MODE_LOCAL = "local"
435 EXPORT_MODE_REMOTE = "remote"
436 EXPORT_MODES = frozenset([
441 # Lock recalculate mode
442 LOCKS_REPLACE = "replace"
443 LOCKS_APPEND = "append"
445 # Lock timeout (sum) before we should go into blocking acquire (still
446 # can be reset by priority change); computed as max time (10 hours)
447 # before we should actually go into blocking acquire given that we
448 # start from default priority level; in seconds
449 LOCK_ATTEMPTS_TIMEOUT = 10 * 3600 / 20.0
450 LOCK_ATTEMPTS_MAXWAIT = 15.0
451 LOCK_ATTEMPTS_MINWAIT = 1.0
453 # instance creation modes
454 INSTANCE_CREATE = "create"
455 INSTANCE_IMPORT = "import"
456 INSTANCE_REMOTE_IMPORT = "remote-import"
457 INSTANCE_CREATE_MODES = frozenset([
460 INSTANCE_REMOTE_IMPORT,
463 # Remote import/export handshake message and version
465 RIE_HANDSHAKE = "Hi, I'm Ganeti"
467 # Remote import/export certificate validity in seconds
468 RIE_CERT_VALIDITY = 24 * 60 * 60
470 # Overall timeout for establishing connection
471 RIE_CONNECT_TIMEOUT = 180
473 # Export only: how long to wait per connection attempt (seconds)
474 RIE_CONNECT_ATTEMPT_TIMEOUT = 20
476 # Export only: number of attempts to connect
477 RIE_CONNECT_RETRIES = 10
479 #: Give child process up to 5 seconds to exit after sending a signal
480 CHILD_LINGER_TIMEOUT = 5.0
482 DISK_TEMPLATES = frozenset([DT_DISKLESS, DT_PLAIN, DT_DRBD8,
483 DT_FILE, DT_SHARED_FILE, DT_BLOCK])
485 FILE_DRIVER = frozenset([FD_LOOP, FD_BLKTAP])
487 # import/export config options
488 INISECT_EXP = "export"
489 INISECT_INS = "instance"
490 INISECT_HYP = "hypervisor"
491 INISECT_BEP = "backend"
494 # dynamic device modification
496 DDM_REMOVE = "remove"
497 DDMS_VALUES = frozenset([DDM_ADD, DDM_REMOVE])
504 EXIT_NODESETUP_ERROR = 12
505 EXIT_CONFIRMATION = 13 # need user confirmation
507 #: Exit code for query operations with unknown fields
508 EXIT_UNKNOWN_FIELD = 14
511 TAG_CLUSTER = "cluster"
512 TAG_NODEGROUP = "nodegroup"
514 TAG_INSTANCE = "instance"
515 VALID_TAG_TYPES = frozenset([
522 MAX_TAGS_PER_OBJ = 4096
525 DEFAULT_BRIDGE = "xen-br0"
526 SYNC_SPEED = 60 * 1024
527 IP4_ADDRESS_LOCALHOST = "127.0.0.1"
528 IP4_ADDRESS_ANY = "0.0.0.0"
529 IP6_ADDRESS_LOCALHOST = "::1"
530 IP6_ADDRESS_ANY = "::"
533 TCP_PING_TIMEOUT = 10
534 GANETI_RUNAS = "root"
536 DEFAULT_DRBD_HELPER = "/bin/true"
538 DEFAULT_MAC_PREFIX = "aa:00:00"
539 LVM_STRIPECOUNT = _autoconf.LVM_STRIPECOUNT
540 # default maximum instance wait time, in seconds.
541 DEFAULT_SHUTDOWN_TIMEOUT = 120
542 NODE_MAX_CLOCK_SKEW = 150
543 # Time for an intra-cluster disk transfer to wait for a connection
544 DISK_TRANSFER_CONNECT_TIMEOUT = 60
545 # Disk index separator
546 DISK_SEPARATOR = _autoconf.DISK_SEPARATOR
548 #: Key for job IDs in opcode result
554 RUNPARTS_ERR) = range(3)
556 RUNPARTS_STATUS = frozenset([RUNPARTS_SKIP, RUNPARTS_RUN, RUNPARTS_ERR])
560 RPC_ENCODING_ZLIB_BASE64) = range(2)
562 # os related constants
563 OS_SCRIPT_CREATE = "create"
564 OS_SCRIPT_IMPORT = "import"
565 OS_SCRIPT_EXPORT = "export"
566 OS_SCRIPT_RENAME = "rename"
567 OS_SCRIPT_VERIFY = "verify"
568 OS_SCRIPTS = frozenset([OS_SCRIPT_CREATE, OS_SCRIPT_IMPORT,
569 OS_SCRIPT_EXPORT, OS_SCRIPT_RENAME,
572 OS_API_FILE = "ganeti_api_version"
573 OS_VARIANTS_FILE = "variants.list"
574 OS_PARAMETERS_FILE = "parameters.list"
576 OS_VALIDATE_PARAMETERS = "parameters"
577 OS_VALIDATE_CALLS = frozenset([OS_VALIDATE_PARAMETERS])
580 SSH_CONFIG_DIR = _autoconf.SSH_CONFIG_DIR
581 SSH_HOST_DSA_PRIV = SSH_CONFIG_DIR + "/ssh_host_dsa_key"
582 SSH_HOST_DSA_PUB = SSH_HOST_DSA_PRIV + ".pub"
583 SSH_HOST_RSA_PRIV = SSH_CONFIG_DIR + "/ssh_host_rsa_key"
584 SSH_HOST_RSA_PUB = SSH_HOST_RSA_PRIV + ".pub"
589 INSTANCE_REBOOT_SOFT = "soft"
590 INSTANCE_REBOOT_HARD = "hard"
591 INSTANCE_REBOOT_FULL = "full"
593 REBOOT_TYPES = frozenset([
594 INSTANCE_REBOOT_SOFT,
595 INSTANCE_REBOOT_HARD,
599 # instance reboot behaviors
600 INSTANCE_REBOOT_ALLOWED = "reboot"
601 INSTANCE_REBOOT_EXIT = "exit"
603 REBOOT_BEHAVIORS = frozenset([
604 INSTANCE_REBOOT_ALLOWED,
608 VTYPE_STRING = "string"
609 VTYPE_MAYBE_STRING = "maybe-string"
611 VTYPE_SIZE = "size" # size, in MiBs
613 ENFORCEABLE_TYPES = frozenset([
621 # HV parameter names (global namespace)
622 HV_BOOT_ORDER = "boot_order"
623 HV_CDROM_IMAGE_PATH = "cdrom_image_path"
624 HV_KVM_CDROM2_IMAGE_PATH = "cdrom2_image_path"
625 HV_KVM_FLOPPY_IMAGE_PATH = "floppy_image_path"
626 HV_NIC_TYPE = "nic_type"
627 HV_DISK_TYPE = "disk_type"
628 HV_KVM_CDROM_DISK_TYPE = "cdrom_disk_type"
629 HV_VNC_BIND_ADDRESS = "vnc_bind_address"
630 HV_VNC_PASSWORD_FILE = "vnc_password_file"
631 HV_VNC_TLS = "vnc_tls"
632 HV_VNC_X509 = "vnc_x509_path"
633 HV_VNC_X509_VERIFY = "vnc_x509_verify"
636 HV_USE_BOOTLOADER = "use_bootloader"
637 HV_BOOTLOADER_ARGS = "bootloader_args"
638 HV_BOOTLOADER_PATH = "bootloader_path"
639 HV_KERNEL_ARGS = "kernel_args"
640 HV_KERNEL_PATH = "kernel_path"
641 HV_INITRD_PATH = "initrd_path"
642 HV_ROOT_PATH = "root_path"
643 HV_SERIAL_CONSOLE = "serial_console"
644 HV_USB_MOUSE = "usb_mouse"
646 HV_DEVICE_MODEL = "device_model"
647 HV_INIT_SCRIPT = "init_script"
648 HV_MIGRATION_PORT = "migration_port"
649 HV_MIGRATION_BANDWIDTH = "migration_bandwidth"
650 HV_MIGRATION_DOWNTIME = "migration_downtime"
651 HV_MIGRATION_MODE = "migration_mode"
652 HV_USE_LOCALTIME = "use_localtime"
653 HV_DISK_CACHE = "disk_cache"
654 HV_SECURITY_MODEL = "security_model"
655 HV_SECURITY_DOMAIN = "security_domain"
656 HV_KVM_FLAG = "kvm_flag"
657 HV_VHOST_NET = "vhost_net"
658 HV_KVM_USE_CHROOT = "use_chroot"
659 HV_CPU_MASK = "cpu_mask"
660 HV_MEM_PATH = "mem_path"
661 HV_BLOCKDEV_PREFIX = "blockdev_prefix"
662 HV_REBOOT_BEHAVIOR = "reboot_behavior"
664 HVS_PARAMETER_TYPES = {
665 HV_BOOT_ORDER: VTYPE_STRING,
666 HV_KVM_FLOPPY_IMAGE_PATH: VTYPE_STRING,
667 HV_CDROM_IMAGE_PATH: VTYPE_STRING,
668 HV_KVM_CDROM2_IMAGE_PATH: VTYPE_STRING,
669 HV_NIC_TYPE: VTYPE_STRING,
670 HV_DISK_TYPE: VTYPE_STRING,
671 HV_KVM_CDROM_DISK_TYPE: VTYPE_STRING,
672 HV_VNC_PASSWORD_FILE: VTYPE_STRING,
673 HV_VNC_BIND_ADDRESS: VTYPE_STRING,
674 HV_VNC_TLS: VTYPE_BOOL,
675 HV_VNC_X509: VTYPE_STRING,
676 HV_VNC_X509_VERIFY: VTYPE_BOOL,
679 HV_USE_BOOTLOADER: VTYPE_BOOL,
680 HV_BOOTLOADER_PATH: VTYPE_STRING,
681 HV_BOOTLOADER_ARGS: VTYPE_STRING,
682 HV_KERNEL_PATH: VTYPE_STRING,
683 HV_KERNEL_ARGS: VTYPE_STRING,
684 HV_INITRD_PATH: VTYPE_STRING,
685 HV_ROOT_PATH: VTYPE_MAYBE_STRING,
686 HV_SERIAL_CONSOLE: VTYPE_BOOL,
687 HV_USB_MOUSE: VTYPE_STRING,
688 HV_KEYMAP: VTYPE_STRING,
689 HV_DEVICE_MODEL: VTYPE_STRING,
690 HV_INIT_SCRIPT: VTYPE_STRING,
691 HV_MIGRATION_PORT: VTYPE_INT,
692 HV_MIGRATION_BANDWIDTH: VTYPE_INT,
693 HV_MIGRATION_DOWNTIME: VTYPE_INT,
694 HV_MIGRATION_MODE: VTYPE_STRING,
695 HV_USE_LOCALTIME: VTYPE_BOOL,
696 HV_DISK_CACHE: VTYPE_STRING,
697 HV_SECURITY_MODEL: VTYPE_STRING,
698 HV_SECURITY_DOMAIN: VTYPE_STRING,
699 HV_KVM_FLAG: VTYPE_STRING,
700 HV_VHOST_NET: VTYPE_BOOL,
701 HV_KVM_USE_CHROOT: VTYPE_BOOL,
702 HV_CPU_MASK: VTYPE_STRING,
703 HV_MEM_PATH: VTYPE_STRING,
704 HV_BLOCKDEV_PREFIX: VTYPE_STRING,
705 HV_REBOOT_BEHAVIOR: VTYPE_STRING,
708 HVS_PARAMETERS = frozenset(HVS_PARAMETER_TYPES.keys())
710 # Backend parameter names
713 BE_AUTO_BALANCE = "auto_balance"
715 BES_PARAMETER_TYPES = {
716 BE_MEMORY: VTYPE_SIZE,
718 BE_AUTO_BALANCE: VTYPE_BOOL,
721 BES_PARAMETERS = frozenset(BES_PARAMETER_TYPES.keys())
723 # Node parameter names
724 ND_OOB_PROGRAM = "oob_program"
726 NDS_PARAMETER_TYPES = {
727 ND_OOB_PROGRAM: VTYPE_MAYBE_STRING,
730 NDS_PARAMETERS = frozenset(NDS_PARAMETER_TYPES.keys())
732 # OOB supported commands
733 OOB_POWER_ON = "power-on"
734 OOB_POWER_OFF = "power-off"
735 OOB_POWER_CYCLE = "power-cycle"
736 OOB_POWER_STATUS = "power-status"
737 OOB_HEALTH = "health"
739 OOB_COMMANDS = frozenset([OOB_POWER_ON, OOB_POWER_OFF, OOB_POWER_CYCLE,
740 OOB_POWER_STATUS, OOB_HEALTH])
742 OOB_POWER_STATUS_POWERED = "powered"
744 OOB_TIMEOUT = 60 # 60 seconds
745 OOB_POWER_DELAY = 2.0 # 2 seconds
748 OOB_STATUS_WARNING = "WARNING"
749 OOB_STATUS_CRITICAL = "CRITICAL"
750 OOB_STATUS_UNKNOWN = "UNKNOWN"
752 OOB_STATUSES = frozenset([
759 # Instance Parameters Profile
760 PP_DEFAULT = "default"
762 # NIC_* constants are used inside the ganeti config
766 NIC_MODE_BRIDGED = "bridged"
767 NIC_MODE_ROUTED = "routed"
769 NIC_VALID_MODES = frozenset([NIC_MODE_BRIDGED, NIC_MODE_ROUTED])
771 NICS_PARAMETER_TYPES = {
772 NIC_MODE: VTYPE_STRING,
773 NIC_LINK: VTYPE_STRING,
776 NICS_PARAMETERS = frozenset(NICS_PARAMETER_TYPES.keys())
778 # IDISK_* constants are used in opcodes, to create/change disks
781 IDISK_ADOPT = "adopt"
783 IDISK_METAVG = "metavg"
784 IDISK_PARAMS_TYPES = {
785 IDISK_SIZE: VTYPE_SIZE,
786 IDISK_MODE: VTYPE_STRING,
787 IDISK_ADOPT: VTYPE_STRING,
788 IDISK_VG: VTYPE_STRING,
789 IDISK_METAVG: VTYPE_STRING,
791 IDISK_PARAMS = frozenset(IDISK_PARAMS_TYPES.keys())
793 # INIC_* constants are used in opcodes, to create/change nics
798 INIC_PARAMS_TYPES = {
799 INIC_IP: VTYPE_MAYBE_STRING,
800 INIC_LINK: VTYPE_STRING,
801 INIC_MAC: VTYPE_STRING,
802 INIC_MODE: VTYPE_STRING,
804 INIC_PARAMS = frozenset(INIC_PARAMS_TYPES.keys())
806 # Hypervisor constants
807 HT_XEN_PVM = "xen-pvm"
809 HT_XEN_HVM = "xen-hvm"
813 HYPER_TYPES = frozenset([
821 HTS_REQ_PORT = frozenset([HT_XEN_HVM, HT_KVM])
824 VNC_PASSWORD_FILE = CONF_DIR + "/vnc-cluster-password"
825 VNC_DEFAULT_BIND_ADDRESS = IP4_ADDRESS_ANY
828 HT_NIC_RTL8139 = "rtl8139"
829 HT_NIC_NE2K_PCI = "ne2k_pci"
830 HT_NIC_NE2K_ISA = "ne2k_isa"
831 HT_NIC_I82551 = "i82551"
832 HT_NIC_I85557B = "i82557b"
833 HT_NIC_I8259ER = "i82559er"
834 HT_NIC_PCNET = "pcnet"
835 HT_NIC_E1000 = "e1000"
836 HT_NIC_PARAVIRTUAL = HT_DISK_PARAVIRTUAL = "paravirtual"
838 HT_HVM_VALID_NIC_TYPES = frozenset([HT_NIC_RTL8139, HT_NIC_NE2K_PCI,
839 HT_NIC_E1000, HT_NIC_NE2K_ISA,
841 HT_KVM_VALID_NIC_TYPES = frozenset([HT_NIC_RTL8139, HT_NIC_NE2K_PCI,
842 HT_NIC_NE2K_ISA, HT_NIC_I82551,
843 HT_NIC_I85557B, HT_NIC_I8259ER,
844 HT_NIC_PCNET, HT_NIC_E1000,
847 HT_DISK_IOEMU = "ioemu"
849 HT_DISK_SCSI = "scsi"
852 HT_DISK_PFLASH = "pflash"
854 HT_CACHE_DEFAULT = "default"
855 HT_CACHE_NONE = "none"
856 HT_CACHE_WTHROUGH = "writethrough"
857 HT_CACHE_WBACK = "writeback"
858 HT_VALID_CACHE_TYPES = frozenset([HT_CACHE_DEFAULT,
863 HT_HVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IOEMU])
864 HT_KVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IDE,
865 HT_DISK_SCSI, HT_DISK_SD, HT_DISK_MTD,
869 HT_MOUSE_MOUSE = "mouse"
870 HT_MOUSE_TABLET = "tablet"
872 HT_KVM_VALID_MOUSE_TYPES = frozenset([HT_MOUSE_MOUSE, HT_MOUSE_TABLET])
875 HT_BO_FLOPPY = "floppy"
876 HT_BO_CDROM = "cdrom"
878 HT_BO_NETWORK = "network"
880 HT_KVM_VALID_BO_TYPES = frozenset([HT_BO_FLOPPY, HT_BO_CDROM,
881 HT_BO_DISK, HT_BO_NETWORK])
888 HT_KVM_VALID_SM_TYPES = frozenset([HT_SM_NONE, HT_SM_USER, HT_SM_POOL])
891 HT_KVM_ENABLED = "enabled"
892 HT_KVM_DISABLED = "disabled"
894 HT_KVM_FLAG_VALUES = frozenset([HT_KVM_ENABLED, HT_KVM_DISABLED])
897 HT_MIGRATION_LIVE = "live"
898 HT_MIGRATION_NONLIVE = "non-live"
899 HT_MIGRATION_MODES = frozenset([HT_MIGRATION_LIVE, HT_MIGRATION_NONLIVE])
901 # Cluster Verify steps
902 VERIFY_NPLUSONE_MEM = "nplusone_mem"
903 VERIFY_OPTIONAL_CHECKS = frozenset([VERIFY_NPLUSONE_MEM])
905 # Node verify constants
906 NV_DRBDHELPER = "drbd-helper"
907 NV_DRBDLIST = "drbd-list"
908 NV_FILELIST = "filelist"
910 NV_HYPERVISOR = "hypervisor"
911 NV_HVPARAMS = "hvparms"
912 NV_INSTANCELIST = "instancelist"
914 NV_MASTERIP = "master-ip"
915 NV_NODELIST = "nodelist"
916 NV_NODENETTEST = "node-net-test"
917 NV_NODESETUP = "nodesetup"
921 NV_VERSION = "version"
923 NV_VMNODES = "vmnodes"
924 NV_OOB_PATHS = "oob-paths"
925 NV_BRIDGES = "bridges"
928 INSTST_RUNNING = "running"
929 INSTST_ADMINDOWN = "ADMIN_down"
930 INSTST_NODEOFFLINE = "ERROR_nodeoffline"
931 INSTST_NODEDOWN = "ERROR_nodedown"
932 INSTST_WRONGNODE = "ERROR_wrongnode"
933 INSTST_ERRORUP = "ERROR_up"
934 INSTST_ERRORDOWN = "ERROR_down"
935 INSTST_ALL = frozenset([
959 # SSL certificate check constants (in days)
960 SSL_CERT_EXPIRATION_WARN = 30
961 SSL_CERT_EXPIRATION_ERROR = 7
963 # Allocator framework constants
964 IALLOCATOR_VERSION = 2
965 IALLOCATOR_DIR_IN = "in"
966 IALLOCATOR_DIR_OUT = "out"
967 VALID_IALLOCATOR_DIRECTIONS = frozenset([
971 IALLOCATOR_MODE_ALLOC = "allocate"
972 IALLOCATOR_MODE_RELOC = "relocate"
973 IALLOCATOR_MODE_MEVAC = "multi-evacuate"
974 IALLOCATOR_MODE_CHG_GROUP = "change-group"
975 IALLOCATOR_MODE_NODE_EVAC = "node-evacuate"
976 VALID_IALLOCATOR_MODES = frozenset([
977 IALLOCATOR_MODE_ALLOC,
978 IALLOCATOR_MODE_RELOC,
979 IALLOCATOR_MODE_MEVAC,
980 IALLOCATOR_MODE_CHG_GROUP,
981 IALLOCATOR_MODE_NODE_EVAC,
983 IALLOCATOR_SEARCH_PATH = _autoconf.IALLOCATOR_SEARCH_PATH
985 IALLOCATOR_NEVAC_PRI = "primary-only"
986 IALLOCATOR_NEVAC_SEC = "secondary-only"
987 IALLOCATOR_NEVAC_ALL = "all"
988 IALLOCATOR_NEVAC_MODES = frozenset([
989 IALLOCATOR_NEVAC_PRI,
990 IALLOCATOR_NEVAC_SEC,
991 IALLOCATOR_NEVAC_ALL,
995 JOB_QUEUE_VERSION = 1
996 JOB_QUEUE_LOCK_FILE = QUEUE_DIR + "/lock"
997 JOB_QUEUE_VERSION_FILE = QUEUE_DIR + "/version"
998 JOB_QUEUE_SERIAL_FILE = QUEUE_DIR + "/serial"
999 JOB_QUEUE_ARCHIVE_DIR = QUEUE_DIR + "/archive"
1000 JOB_QUEUE_DRAIN_FILE = QUEUE_DIR + "/drain"
1001 JOB_QUEUE_SIZE_HARD_LIMIT = 5000
1002 JOB_QUEUE_DIRS = [QUEUE_DIR, JOB_QUEUE_ARCHIVE_DIR]
1003 JOB_QUEUE_DIRS_MODE = SECURE_DIR_MODE
1005 JOB_ID_TEMPLATE = r"\d+"
1007 # unchanged job return
1008 JOB_NOTCHANGED = "nochange"
1011 JOB_STATUS_QUEUED = "queued"
1012 JOB_STATUS_WAITING = "waiting"
1013 JOB_STATUS_CANCELING = "canceling"
1014 JOB_STATUS_RUNNING = "running"
1015 JOB_STATUS_CANCELED = "canceled"
1016 JOB_STATUS_SUCCESS = "success"
1017 JOB_STATUS_ERROR = "error"
1018 JOBS_FINALIZED = frozenset([
1019 JOB_STATUS_CANCELED,
1023 JOB_STATUS_ALL = frozenset([
1026 JOB_STATUS_CANCELING,
1032 OP_STATUS_QUEUED = "queued"
1033 OP_STATUS_WAITING = "waiting"
1034 OP_STATUS_CANCELING = "canceling"
1035 OP_STATUS_RUNNING = "running"
1037 OP_STATUS_CANCELED = "canceled"
1038 OP_STATUS_SUCCESS = "success"
1039 OP_STATUS_ERROR = "error"
1040 OPS_FINALIZED = frozenset([OP_STATUS_CANCELED,
1045 OP_PRIO_LOWEST = +19
1046 OP_PRIO_HIGHEST = -20
1052 OP_PRIO_SUBMIT_VALID = frozenset([
1058 OP_PRIO_DEFAULT = OP_PRIO_NORMAL
1060 # Execution log types
1061 ELOG_MESSAGE = "message"
1062 ELOG_PROGRESS = "progress"
1063 ELOG_REMOTE_IMPORT = "remote-import"
1064 ELOG_JQUEUE_TEST = "jqueue-test"
1066 # /etc/hosts modification
1067 ETC_HOSTS_ADD = "add"
1068 ETC_HOSTS_REMOVE = "remove"
1071 JQT_MSGPREFIX = "TESTMSG="
1072 JQT_EXPANDNAMES = "expandnames"
1074 JQT_LOGMSG = "logmsg"
1075 JQT_STARTMSG = "startmsg"
1076 JQT_ALL = frozenset([
1084 QR_INSTANCE = "instance"
1090 #: List of resources which can be queried using L{opcodes.OpQuery}
1091 QR_VIA_OP = frozenset([QR_INSTANCE, QR_NODE, QR_GROUP, QR_OS])
1093 #: List of resources which can be queried using Local UniX Interface
1094 QR_VIA_LUXI = QR_VIA_OP.union([
1098 #: List of resources which can be queried using RAPI
1099 QR_VIA_RAPI = QR_VIA_LUXI
1102 QFT_UNKNOWN = "unknown"
1105 QFT_NUMBER = "number"
1107 QFT_TIMESTAMP = "timestamp"
1110 #: All query field types
1111 QFT_ALL = frozenset([
1121 # Query result field status (don't change or reuse values as they're used by
1123 #: Normal field status
1127 #: No data (e.g. RPC error), can be used instead of L{RS_OFFLINE}
1129 #: Value unavailable/unsupported for item; if this field is supported
1130 #: but we cannot get the data for the moment, RS_NODATA or
1131 #: RS_OFFLINE should be used
1133 #: Resource marked offline
1136 RS_ALL = frozenset([
1144 #: Dictionary with special field cases and their verbose/terse formatting
1146 RS_UNKNOWN: ("(unknown)", "??"),
1147 RS_NODATA: ("(nodata)", "?"),
1148 RS_OFFLINE: ("(offline)", "*"),
1149 RS_UNAVAIL: ("(unavail)", "-"),
1152 # max dynamic devices
1157 SS_CLUSTER_NAME = "cluster_name"
1158 SS_CLUSTER_TAGS = "cluster_tags"
1159 SS_FILE_STORAGE_DIR = "file_storage_dir"
1160 SS_SHARED_FILE_STORAGE_DIR = "shared_file_storage_dir"
1161 SS_MASTER_CANDIDATES = "master_candidates"
1162 SS_MASTER_CANDIDATES_IPS = "master_candidates_ips"
1163 SS_MASTER_IP = "master_ip"
1164 SS_MASTER_NETDEV = "master_netdev"
1165 SS_MASTER_NODE = "master_node"
1166 SS_NODE_LIST = "node_list"
1167 SS_NODE_PRIMARY_IPS = "node_primary_ips"
1168 SS_NODE_SECONDARY_IPS = "node_secondary_ips"
1169 SS_OFFLINE_NODES = "offline_nodes"
1170 SS_ONLINE_NODES = "online_nodes"
1171 SS_PRIMARY_IP_FAMILY = "primary_ip_family"
1172 SS_INSTANCE_LIST = "instance_list"
1173 SS_RELEASE_VERSION = "release_version"
1174 SS_HYPERVISOR_LIST = "hypervisor_list"
1175 SS_MAINTAIN_NODE_HEALTH = "maintain_node_health"
1176 SS_UID_POOL = "uid_pool"
1177 SS_NODEGROUPS = "nodegroups"
1179 # cluster wide default parameters
1180 DEFAULT_ENABLED_HYPERVISOR = HT_XEN_PVM
1184 HV_USE_BOOTLOADER: False,
1185 HV_BOOTLOADER_PATH: XEN_BOOTLOADER,
1186 HV_BOOTLOADER_ARGS: "",
1187 HV_KERNEL_PATH: "/boot/vmlinuz-2.6-xenU",
1189 HV_ROOT_PATH: "/dev/sda1",
1190 HV_KERNEL_ARGS: "ro",
1191 HV_MIGRATION_PORT: 8002,
1192 HV_MIGRATION_MODE: HT_MIGRATION_LIVE,
1193 HV_BLOCKDEV_PREFIX: "sd",
1194 HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
1197 HV_BOOT_ORDER: "cd",
1198 HV_CDROM_IMAGE_PATH: "",
1199 HV_NIC_TYPE: HT_NIC_RTL8139,
1200 HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
1201 HV_VNC_BIND_ADDRESS: IP4_ADDRESS_ANY,
1202 HV_VNC_PASSWORD_FILE: VNC_PASSWORD_FILE,
1205 HV_KERNEL_PATH: "/usr/lib/xen/boot/hvmloader",
1206 HV_DEVICE_MODEL: "/usr/lib/xen/bin/qemu-dm",
1207 HV_MIGRATION_PORT: 8002,
1208 HV_MIGRATION_MODE: HT_MIGRATION_NONLIVE,
1209 HV_USE_LOCALTIME: False,
1210 HV_BLOCKDEV_PREFIX: "hd",
1211 HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
1214 HV_KERNEL_PATH: "/boot/vmlinuz-2.6-kvmU",
1216 HV_KERNEL_ARGS: "ro",
1217 HV_ROOT_PATH: "/dev/vda1",
1219 HV_SERIAL_CONSOLE: True,
1220 HV_VNC_BIND_ADDRESS: "",
1223 HV_VNC_X509_VERIFY: False,
1224 HV_VNC_PASSWORD_FILE: "",
1225 HV_KVM_FLOPPY_IMAGE_PATH: "",
1226 HV_CDROM_IMAGE_PATH: "",
1227 HV_KVM_CDROM2_IMAGE_PATH: "",
1228 HV_BOOT_ORDER: HT_BO_DISK,
1229 HV_NIC_TYPE: HT_NIC_PARAVIRTUAL,
1230 HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
1231 HV_KVM_CDROM_DISK_TYPE: "",
1234 HV_MIGRATION_PORT: 8102,
1235 HV_MIGRATION_BANDWIDTH: 32, # MiB/s
1236 HV_MIGRATION_DOWNTIME: 30, # ms
1237 HV_MIGRATION_MODE: HT_MIGRATION_LIVE,
1238 HV_USE_LOCALTIME: False,
1239 HV_DISK_CACHE: HT_CACHE_DEFAULT,
1240 HV_SECURITY_MODEL: HT_SM_NONE,
1241 HV_SECURITY_DOMAIN: "",
1243 HV_VHOST_NET: False,
1244 HV_KVM_USE_CHROOT: False,
1246 HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
1251 HV_INIT_SCRIPT: "/ganeti-chroot",
1258 HVC_GLOBALS = frozenset([
1260 HV_MIGRATION_BANDWIDTH,
1267 BE_AUTO_BALANCE: True,
1271 ND_OOB_PROGRAM: None,
1275 NIC_MODE: NIC_MODE_BRIDGED,
1276 NIC_LINK: DEFAULT_BRIDGE,
1279 MASTER_POOL_SIZE_DEFAULT = 10
1281 CONFD_PROTOCOL_VERSION = 1
1284 CONFD_REQ_NODE_ROLE_BYNAME = 1
1285 CONFD_REQ_NODE_PIP_BY_INSTANCE_IP = 2
1286 CONFD_REQ_CLUSTER_MASTER = 3
1287 CONFD_REQ_NODE_PIP_LIST = 4
1288 CONFD_REQ_MC_PIP_LIST = 5
1289 CONFD_REQ_INSTANCES_IPS_LIST = 6
1291 # Confd request query fields. These are used to narrow down queries.
1292 # These must be strings rather than integers, because json-encoding
1293 # converts them to strings anyway, as they're used as dict-keys.
1294 CONFD_REQQ_LINK = "0"
1296 CONFD_REQQ_IPLIST = "2"
1297 CONFD_REQQ_FIELDS = "3"
1299 CONFD_REQFIELD_NAME = "0"
1300 CONFD_REQFIELD_IP = "1"
1301 CONFD_REQFIELD_MNODE_PIP = "2"
1303 CONFD_REQS = frozenset([
1305 CONFD_REQ_NODE_ROLE_BYNAME,
1306 CONFD_REQ_NODE_PIP_BY_INSTANCE_IP,
1307 CONFD_REQ_CLUSTER_MASTER,
1308 CONFD_REQ_NODE_PIP_LIST,
1309 CONFD_REQ_MC_PIP_LIST,
1310 CONFD_REQ_INSTANCES_IPS_LIST,
1313 CONFD_REPL_STATUS_OK = 0
1314 CONFD_REPL_STATUS_ERROR = 1
1315 CONFD_REPL_STATUS_NOTIMPLEMENTED = 2
1317 CONFD_REPL_STATUSES = frozenset([
1318 CONFD_REPL_STATUS_OK,
1319 CONFD_REPL_STATUS_ERROR,
1320 CONFD_REPL_STATUS_NOTIMPLEMENTED,
1323 (CONFD_NODE_ROLE_MASTER,
1324 CONFD_NODE_ROLE_CANDIDATE,
1325 CONFD_NODE_ROLE_OFFLINE,
1326 CONFD_NODE_ROLE_DRAINED,
1327 CONFD_NODE_ROLE_REGULAR,
1330 # A few common errors for confd
1331 CONFD_ERROR_UNKNOWN_ENTRY = 1
1332 CONFD_ERROR_INTERNAL = 2
1333 CONFD_ERROR_ARGUMENT = 3
1335 # Each request is "salted" by the current timestamp.
1336 # This constants decides how many seconds of skew to accept.
1337 # TODO: make this a default and allow the value to be more configurable
1338 CONFD_MAX_CLOCK_SKEW = 2 * NODE_MAX_CLOCK_SKEW
1340 # When we haven't reloaded the config for more than this amount of seconds, we
1341 # force a test to see if inotify is betraying us.
1342 CONFD_CONFIG_RELOAD_TIMEOUT = 60
1344 # If we receive more than one update in this amount of seconds, we move to
1345 # polling every RATELIMIT seconds, rather than relying on inotify, to be able
1346 # to serve more requests.
1347 CONFD_CONFIG_RELOAD_RATELIMIT = 2
1349 # Magic number prepended to all confd queries.
1350 # This allows us to distinguish different types of confd protocols and handle
1351 # them. For example by changing this we can move the whole payload to be
1352 # compressed, or move away from json.
1353 CONFD_MAGIC_FOURCC = "plj0"
1355 # By default a confd request is sent to the minimum between this number and all
1356 # MCs. 6 was chosen because even in the case of a disastrous 50% response rate,
1357 # we should have enough answers to be able to compare more than one.
1358 CONFD_DEFAULT_REQ_COVERAGE = 6
1360 # Timeout in seconds to expire pending query request in the confd client
1361 # library. We don't actually expect any answer more than 10 seconds after we
1363 CONFD_CLIENT_EXPIRE_TIMEOUT = 10
1365 # Maximum UDP datagram size.
1366 # On IPv4: 64K - 20 (ip header size) - 8 (udp header size) = 65507
1367 # On IPv6: 64K - 40 (ip6 header size) - 8 (udp header size) = 65487
1368 # (assuming we can't use jumbo frames)
1369 # We just set this to 60K, which should be enough
1370 MAX_UDP_DATA_SIZE = 61440
1372 # User-id pool minimum/maximum acceptable user-ids.
1374 UIDPOOL_UID_MAX = 2**32-1 # Assuming 32 bit user-ids
1376 # Name or path of the pgrep command
1379 # Name of the node group that gets created at cluster init or upgrade
1380 INITIAL_NODE_GROUP_NAME = "default"
1382 # Possible values for NodeGroup.alloc_policy
1383 ALLOC_POLICY_PREFERRED = "preferred"
1384 ALLOC_POLICY_LAST_RESORT = "last_resort"
1385 ALLOC_POLICY_UNALLOCABLE = "unallocable"
1386 VALID_ALLOC_POLICIES = [
1387 ALLOC_POLICY_PREFERRED,
1388 ALLOC_POLICY_LAST_RESORT,
1389 ALLOC_POLICY_UNALLOCABLE,
1392 # Temporary external/shared storage parameters
1393 BLOCKDEV_DRIVER_MANUAL = "manual"
1395 # Whether htools was enabled at compilation time
1396 HTOOLS = _autoconf.HTOOLS
1397 # The hail iallocator
1398 IALLOC_HAIL = "hail"