X-Git-Url: https://code.grnet.gr/git/ganeti-local/blobdiff_plain/efb8da026075374e806374127046a53dc87cf55d..1e288a2605b4f7584bca1a1f5263e41d6515211c:/lib/constants.py?ds=sidebyside

diff --git a/lib/constants.py b/lib/constants.py
index 09f7917..7847316 100644
--- a/lib/constants.py
+++ b/lib/constants.py
@@ -99,6 +99,7 @@ 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"
@@ -106,12 +107,15 @@ 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"
 
-NODE_INITD_SCRIPT = _autoconf.SYSCONFDIR + "/init.d/ganeti"
+NODE_INITD_SCRIPT = SYSCONFDIR + "/init.d/ganeti"
 
 NODED = "ganeti-noded"
+CONFD = "ganeti-confd"
 RAPI = "ganeti-rapi"
 MASTERD = "ganeti-masterd"
 
@@ -126,9 +130,11 @@ DAEMONS_SSL = {
 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]
 
 FIRST_DRBD_PORT = 11000
@@ -137,11 +143,12 @@ MASTER_SCRIPT = "ganeti-master"
 
 LOG_DIR = _autoconf.LOCALSTATEDIR + "/log/ganeti/"
 DAEMONS_LOGFILES = {
- # "daemon-name": "logfile"
- NODED: LOG_DIR + "node-daemon.log",
- RAPI: LOG_DIR + "rapi-daemon.log",
- MASTERD: LOG_DIR + "master-daemon.log",
-}
+  # "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_WATCHER = LOG_DIR + "watcher.log"
 LOG_COMMANDS = LOG_DIR + "commands.log"
@@ -152,6 +159,7 @@ EXPORT_DIR = _autoconf.EXPORT_DIR
 
 EXPORT_CONF_FILE = "config.ini"
 
+XEN_BOOTLOADER = _autoconf.XEN_BOOTLOADER
 XEN_KERNEL = _autoconf.XEN_KERNEL
 XEN_INITRD = _autoconf.XEN_INITRD
 
@@ -167,7 +175,7 @@ VALUE_TRUE = "true"
 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"
@@ -194,6 +202,9 @@ SF_FREE = "free"
 SF_USED = "used"
 SF_ALLOCATABLE = "allocatable"
 
+# Storage operations
+SO_FIX_CONSISTENCY = "fix-consistency"
+
 # Available fields per storage type
 VALID_STORAGE_FIELDS = {
   ST_FILE: frozenset([SF_NAME, SF_USED, SF_FREE]),
@@ -205,6 +216,16 @@ 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"
@@ -243,6 +264,7 @@ DISK_ACCESS_SET = frozenset([DISK_RDONLY, DISK_RDWR])
 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'
@@ -273,6 +295,7 @@ EXIT_NOTCLUSTER = 5
 EXIT_NOTMASTER = 11
 EXIT_NODESETUP_ERROR = 12
 EXIT_CONFIRMATION = 13 # need user confirmation
+EXIT_NOTCANDIDATE = 14
 
 # tags
 TAG_CLUSTER = "cluster"
@@ -305,6 +328,9 @@ OS_SCRIPT_RENAME = 'rename'
 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/"
@@ -346,6 +372,9 @@ 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"
@@ -366,6 +395,9 @@ HVS_PARAMETER_TYPES = {
   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,
@@ -419,7 +451,7 @@ HYPER_TYPES = frozenset([HT_XEN_PVM, HT_FAKE, HT_XEN_HVM, HT_KVM, HT_CHROOT])
 HTS_REQ_PORT = frozenset([HT_XEN_HVM, HT_KVM])
 
 VNC_BASE_PORT = 5900
-VNC_PASSWORD_FILE = _autoconf.SYSCONFDIR + "/ganeti/vnc-cluster-password"
+VNC_PASSWORD_FILE = CONF_DIR + "/vnc-cluster-password"
 VNC_DEFAULT_BIND_ADDRESS = '0.0.0.0'
 
 # NIC types
@@ -541,10 +573,13 @@ 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"
@@ -555,6 +590,9 @@ DEFAULT_ENABLED_HYPERVISOR = HT_XEN_PVM
 
 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: '',
     HV_ROOT_PATH: '/dev/sda1',
@@ -607,3 +645,81 @@ NICC_DEFAULTS = {
   }
 
 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_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
+
+# 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