#
#
-# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Google Inc.
+# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 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
import ConfigParser
import re
import copy
+import logging
import time
from cStringIO import StringIO
from ganeti import errors
from ganeti import constants
from ganeti import netutils
-from ganeti import objectutils
+from ganeti import outils
from ganeti import utils
from socket import AF_INET
return ret_dict
-def FillIPolicy(default_ipolicy, custom_ipolicy, skip_keys=None):
+def _FillMinMaxISpecs(default_specs, custom_specs):
+ assert frozenset(default_specs.keys()) == constants.ISPECS_MINMAX_KEYS
+ ret_specs = {}
+ for key in constants.ISPECS_MINMAX_KEYS:
+ ret_specs[key] = FillDict(default_specs[key],
+ custom_specs.get(key, {}))
+ return ret_specs
+
+
+def FillIPolicy(default_ipolicy, custom_ipolicy):
"""Fills an instance policy with defaults.
"""
assert frozenset(default_ipolicy.keys()) == constants.IPOLICY_ALL_KEYS
ret_dict = {}
- for key in constants.IPOLICY_ISPECS:
- ret_dict[key] = FillDict(default_ipolicy[key],
- custom_ipolicy.get(key, {}),
- skip_keys=skip_keys)
+ # Instance specs
+ new_mm = _FillMinMaxISpecs(default_ipolicy[constants.ISPECS_MINMAX],
+ custom_ipolicy.get(constants.ISPECS_MINMAX, {}))
+ ret_dict[constants.ISPECS_MINMAX] = new_mm
+ new_std = FillDict(default_ipolicy[constants.ISPECS_STD],
+ custom_ipolicy.get(constants.ISPECS_STD, {}))
+ ret_dict[constants.ISPECS_STD] = new_std
# list items
for key in [constants.IPOLICY_DTS]:
ret_dict[key] = list(custom_ipolicy.get(key, default_ipolicy[key]))
"""Create empty IPolicy dictionary.
"""
- return dict([
- (constants.ISPECS_MIN, {}),
- (constants.ISPECS_MAX, {}),
- (constants.ISPECS_STD, {}),
- ])
+ return {
+ constants.ISPECS_MINMAX: {
+ constants.ISPECS_MIN: {},
+ constants.ISPECS_MAX: {},
+ },
+ constants.ISPECS_STD: {},
+ }
-class ConfigObject(objectutils.ValidatedSlots):
+class ConfigObject(outils.ValidatedSlots):
"""A generic config object.
It has the following properties:
obj = cls(**val_str) # pylint: disable=W0142
return obj
- @staticmethod
- def _ContainerToDicts(container):
- """Convert the elements of a container to standard python types.
-
- This method converts a container with elements derived from
- ConfigData to standard python types. If the container is a dict,
- we don't touch the keys, only the values.
-
- """
- if isinstance(container, dict):
- ret = dict([(k, v.ToDict()) for k, v in container.iteritems()])
- elif isinstance(container, (list, tuple, set, frozenset)):
- ret = [elem.ToDict() for elem in container]
- else:
- raise TypeError("Invalid type %s passed to _ContainerToDicts" %
- type(container))
- return ret
-
- @staticmethod
- def _ContainerFromDicts(source, c_type, e_type):
- """Convert a container from standard python types.
-
- This method converts a container with standard python types to
- ConfigData objects. If the container is a dict, we don't touch the
- keys, only the values.
-
- """
- if not isinstance(c_type, type):
- raise TypeError("Container type %s passed to _ContainerFromDicts is"
- " not a type" % type(c_type))
- if source is None:
- source = c_type()
- if c_type is dict:
- ret = dict([(k, e_type.FromDict(v)) for k, v in source.iteritems()])
- elif c_type in (list, tuple, set, frozenset):
- ret = c_type([e_type.FromDict(elem) for elem in source])
- else:
- raise TypeError("Invalid container type %s passed to"
- " _ContainerFromDicts" % c_type)
- return ret
-
def Copy(self):
"""Makes a deep copy of the current object and its children.
mydict = super(ConfigData, self).ToDict()
mydict["cluster"] = mydict["cluster"].ToDict()
for key in "nodes", "instances", "nodegroups", "networks":
- mydict[key] = self._ContainerToDicts(mydict[key])
+ mydict[key] = outils.ContainerToDicts(mydict[key])
return mydict
"""
obj = super(ConfigData, cls).FromDict(val)
obj.cluster = Cluster.FromDict(obj.cluster)
- obj.nodes = cls._ContainerFromDicts(obj.nodes, dict, Node)
- obj.instances = cls._ContainerFromDicts(obj.instances, dict, Instance)
- obj.nodegroups = cls._ContainerFromDicts(obj.nodegroups, dict, NodeGroup)
- obj.networks = cls._ContainerFromDicts(obj.networks, dict, Network)
+ obj.nodes = outils.ContainerFromDicts(obj.nodes, dict, Node)
+ obj.instances = \
+ outils.ContainerFromDicts(obj.instances, dict, Instance)
+ obj.nodegroups = \
+ outils.ContainerFromDicts(obj.nodegroups, dict, NodeGroup)
+ obj.networks = outils.ContainerFromDicts(obj.networks, dict, Network)
return obj
def HasAnyDiskOfType(self, dev_type):
self.cluster.drbd_usermode_helper = constants.DEFAULT_DRBD_HELPER
if self.networks is None:
self.networks = {}
+ for network in self.networks.values():
+ network.UpgradeConfig()
+ self._UpgradeEnabledDiskTemplates()
+
+ def _UpgradeEnabledDiskTemplates(self):
+ """Upgrade the cluster's enabled disk templates by inspecting the currently
+ enabled and/or used disk templates.
+
+ """
+ # enabled_disk_templates in the cluster config were introduced in 2.8.
+ # Remove this code once upgrading from earlier versions is deprecated.
+ if not self.cluster.enabled_disk_templates:
+ template_set = \
+ set([inst.disk_template for inst in self.instances.values()])
+ # Add drbd and plain, if lvm is enabled (by specifying a volume group)
+ if self.cluster.volume_group_name:
+ template_set.add(constants.DT_DRBD8)
+ template_set.add(constants.DT_PLAIN)
+ # FIXME: Adapt this when dis/enabling at configure time is removed.
+ # Enable 'file' and 'sharedfile', if they are enabled, even though they
+ # might currently not be used.
+ if constants.ENABLE_FILE_STORAGE:
+ template_set.add(constants.DT_FILE)
+ if constants.ENABLE_SHARED_FILE_STORAGE:
+ template_set.add(constants.DT_SHARED_FILE)
+ # Set enabled_disk_templates to the inferred disk templates. Order them
+ # according to a preference list that is based on Ganeti's history of
+ # supported disk templates.
+ self.cluster.enabled_disk_templates = []
+ for preferred_template in constants.DISK_TEMPLATE_PREFERENCE:
+ if preferred_template in template_set:
+ self.cluster.enabled_disk_templates.append(preferred_template)
+ template_set.remove(preferred_template)
+ self.cluster.enabled_disk_templates.extend(list(template_set))
class NIC(ConfigObject):
"""Config object representing a network card."""
- __slots__ = ["mac", "ip", "network", "nicparams", "netinfo"]
+ __slots__ = ["name", "mac", "ip", "network", "nicparams", "netinfo"] + _UUID
@classmethod
def CheckParameterSyntax(cls, nicparams):
@raise errors.ConfigurationError: when a parameter is not valid
"""
- if (nicparams[constants.NIC_MODE] not in constants.NIC_VALID_MODES and
- nicparams[constants.NIC_MODE] != constants.VALUE_AUTO):
- err = "Invalid nic mode: %s" % nicparams[constants.NIC_MODE]
- raise errors.ConfigurationError(err)
+ mode = nicparams[constants.NIC_MODE]
+ if (mode not in constants.NIC_VALID_MODES and
+ mode != constants.VALUE_AUTO):
+ raise errors.ConfigurationError("Invalid NIC mode '%s'" % mode)
- if (nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED and
+ if (mode == constants.NIC_MODE_BRIDGED and
not nicparams[constants.NIC_LINK]):
- err = "Missing bridged nic link"
- raise errors.ConfigurationError(err)
+ raise errors.ConfigurationError("Missing bridged NIC link")
class Disk(ConfigObject):
"""Config object representing a block device."""
- __slots__ = ["dev_type", "logical_id", "physical_id",
- "children", "iv_name", "size", "mode", "params"]
+ __slots__ = ["name", "dev_type", "logical_id", "physical_id",
+ "children", "iv_name", "size", "mode", "params"] + _UUID
def CreateOnSecondary(self):
"""Test if this device needs to be created on a secondary node."""
"""
if self.dev_type in [constants.LD_LV, constants.LD_FILE,
- constants.LD_BLOCKDEV, constants.LD_RBD]:
+ constants.LD_BLOCKDEV, constants.LD_RBD,
+ constants.LD_EXT]:
result = [node]
elif self.dev_type in constants.LDS_DRBD:
result = [self.logical_id[0], self.logical_id[1]]
"""
if self.dev_type in (constants.LD_LV, constants.LD_FILE,
- constants.LD_RBD):
+ constants.LD_RBD, constants.LD_EXT):
self.size += amount
elif self.dev_type == constants.LD_DRBD8:
if self.children:
for attr in ("children",):
alist = bo.get(attr, None)
if alist:
- bo[attr] = self._ContainerToDicts(alist)
+ bo[attr] = outils.ContainerToDicts(alist)
return bo
@classmethod
"""
obj = super(Disk, cls).FromDict(val)
if obj.children:
- obj.children = cls._ContainerFromDicts(obj.children, list, Disk)
+ obj.children = outils.ContainerFromDicts(obj.children, list, Disk)
if obj.logical_id and isinstance(obj.logical_id, list):
obj.logical_id = tuple(obj.logical_id)
if obj.physical_id and isinstance(obj.physical_id, list):
constants.LDP_POOL: dt_params[constants.RBD_POOL],
}))
+ elif disk_template == constants.DT_EXT:
+ result.append(constants.DISK_LD_DEFAULTS[constants.LD_EXT])
+
return result
class InstancePolicy(ConfigObject):
"""Config object representing instance policy limits dictionary.
-
Note that this object is not actually used in the config, it's just
used as a placeholder for a few functions.
def CheckParameterSyntax(cls, ipolicy, check_std):
""" Check the instance policy for validity.
+ @type ipolicy: dict
+ @param ipolicy: dictionary with min/max/std specs and policies
+ @type check_std: bool
+ @param check_std: Whether to check std value or just assume compliance
+ @raise errors.ConfigurationError: when the policy is not legal
+
"""
- for param in constants.ISPECS_PARAMETERS:
- InstancePolicy.CheckISpecSyntax(ipolicy, param, check_std)
+ if constants.ISPECS_MINMAX in ipolicy:
+ if check_std and constants.ISPECS_STD not in ipolicy:
+ msg = "Missing key in ipolicy: %s" % constants.ISPECS_STD
+ raise errors.ConfigurationError(msg)
+ minmaxspecs = ipolicy[constants.ISPECS_MINMAX]
+ stdspec = ipolicy.get(constants.ISPECS_STD)
+ for param in constants.ISPECS_PARAMETERS:
+ InstancePolicy.CheckISpecSyntax(minmaxspecs, stdspec, param, check_std)
if constants.IPOLICY_DTS in ipolicy:
InstancePolicy.CheckDiskTemplates(ipolicy[constants.IPOLICY_DTS])
for key in constants.IPOLICY_PARAMETERS:
utils.CommaJoin(wrong_keys))
@classmethod
- def CheckISpecSyntax(cls, ipolicy, name, check_std):
- """Check the instance policy for validity on a given key.
+ def CheckISpecSyntax(cls, minmaxspecs, stdspec, name, check_std):
+ """Check the instance policy specs for validity on a given key.
- We check if the instance policy makes sense for a given key, that is
- if ipolicy[min][name] <= ipolicy[std][name] <= ipolicy[max][name].
+ We check if the instance specs makes sense for a given key, that is
+ if minmaxspecs[min][name] <= stdspec[name] <= minmaxspec[max][name].
- @type ipolicy: dict
- @param ipolicy: dictionary with min, max, std specs
+ @type minmaxspecs: dict
+ @param minmaxspecs: dictionary with min and max instance spec
+ @type stdspec: dict
+ @param stdspec: dictionary with standard instance spec
@type name: string
@param name: what are the limits for
@type check_std: bool
@param check_std: Whether to check std value or just assume compliance
- @raise errors.ConfigureError: when specs for given name are not valid
+ @raise errors.ConfigurationError: when specs for the given name are not
+ valid
"""
- min_v = ipolicy[constants.ISPECS_MIN].get(name, 0)
+ missing = constants.ISPECS_MINMAX_KEYS - frozenset(minmaxspecs.keys())
+ if missing:
+ msg = "Missing instance specification: %s" % utils.CommaJoin(missing)
+ raise errors.ConfigurationError(msg)
+
+ minspec = minmaxspecs[constants.ISPECS_MIN]
+ maxspec = minmaxspecs[constants.ISPECS_MAX]
+ min_v = minspec.get(name, 0)
if check_std:
- std_v = ipolicy[constants.ISPECS_STD].get(name, min_v)
+ std_v = stdspec.get(name, min_v)
std_msg = std_v
else:
std_v = min_v
std_msg = "-"
- max_v = ipolicy[constants.ISPECS_MAX].get(name, std_v)
- err = ("Invalid specification of min/max/std values for %s: %s/%s/%s" %
- (name,
- ipolicy[constants.ISPECS_MIN].get(name, "-"),
- ipolicy[constants.ISPECS_MAX].get(name, "-"),
- std_msg))
+ max_v = maxspec.get(name, std_v)
if min_v > std_v or std_v > max_v:
+ err = ("Invalid specification of min/max/std values for %s: %s/%s/%s" %
+ (name,
+ minspec.get(name, "-"),
+ maxspec.get(name, "-"),
+ std_msg))
raise errors.ConfigurationError(err)
@classmethod
"""Checks the disk templates for validity.
"""
+ if not disk_templates:
+ raise errors.ConfigurationError("Instance policy must contain" +
+ " at least one disk template")
wrong = frozenset(disk_templates).difference(constants.DISK_TEMPLATES)
if wrong:
raise errors.ConfigurationError("Invalid disk template(s) %s" %
return tuple(all_nodes)
secondary_nodes = property(_ComputeSecondaryNodes, None, None,
- "List of secondary nodes")
+ "List of names of secondary nodes")
def _ComputeAllNodes(self):
"""Compute the list of all nodes.
return tuple(all_nodes)
all_nodes = property(_ComputeAllNodes, None, None,
- "List of all nodes of the instance")
+ "List of names of all the nodes of the instance")
def MapLVsByNode(self, lvmap=None, devs=None, node=None):
"""Provide a mapping of nodes to LVs this instance owns.
for attr in "nics", "disks":
alist = bo.get(attr, None)
if alist:
- nlist = self._ContainerToDicts(alist)
+ nlist = outils.ContainerToDicts(alist)
else:
nlist = []
bo[attr] = nlist
if "admin_up" in val:
del val["admin_up"]
obj = super(Instance, cls).FromDict(val)
- obj.nics = cls._ContainerFromDicts(obj.nics, list, NIC)
- obj.disks = cls._ContainerFromDicts(obj.disks, list, Disk)
+ obj.nics = outils.ContainerFromDicts(obj.nics, list, NIC)
+ obj.disks = outils.ContainerFromDicts(obj.disks, list, Disk)
return obj
def UpgradeConfig(self):
return cls.SplitNameVariant(name)[1]
+class ExtStorage(ConfigObject):
+ """Config object representing an External Storage Provider.
+
+ """
+ __slots__ = [
+ "name",
+ "path",
+ "create_script",
+ "remove_script",
+ "grow_script",
+ "attach_script",
+ "detach_script",
+ "setinfo_script",
+ "verify_script",
+ "supported_parameters",
+ ]
+
+
class NodeHvState(ConfigObject):
"""Hypvervisor state on a node.
if self.ndparams is None:
self.ndparams = {}
+ # And remove any global parameter
+ for key in constants.NDC_GLOBALS:
+ if key in self.ndparams:
+ logging.warning("Ignoring %s node parameter for node %s",
+ key, self.name)
+ del self.ndparams[key]
if self.powered is None:
self.powered = True
hv_state = data.get("hv_state", None)
if hv_state is not None:
- data["hv_state"] = self._ContainerToDicts(hv_state)
+ data["hv_state"] = outils.ContainerToDicts(hv_state)
disk_state = data.get("disk_state", None)
if disk_state is not None:
data["disk_state"] = \
- dict((key, self._ContainerToDicts(value))
+ dict((key, outils.ContainerToDicts(value))
for (key, value) in disk_state.items())
return data
obj = super(Node, cls).FromDict(val)
if obj.hv_state is not None:
- obj.hv_state = cls._ContainerFromDicts(obj.hv_state, dict, NodeHvState)
+ obj.hv_state = \
+ outils.ContainerFromDicts(obj.hv_state, dict, NodeHvState)
if obj.disk_state is not None:
obj.disk_state = \
- dict((key, cls._ContainerFromDicts(value, dict, NodeDiskState))
+ dict((key, outils.ContainerFromDicts(value, dict, NodeDiskState))
for (key, value) in obj.disk_state.items())
return obj
"prealloc_wipe_disks",
"hv_state_static",
"disk_state_static",
+ "enabled_disk_templates",
] + _TIMESTAMPS + _UUID
def UpgradeConfig(self):
# we can either make sure to upgrade the ipolicy always, or only
# do it in some corner cases (e.g. missing keys); note that this
# will break any removal of keys from the ipolicy dict
+ wrongkeys = frozenset(self.ipolicy.keys()) - constants.IPOLICY_ALL_KEYS
+ if wrongkeys:
+ # These keys would be silently removed by FillIPolicy()
+ msg = ("Cluster instance policy contains spurious keys: %s" %
+ utils.CommaJoin(wrongkeys))
+ raise errors.ConfigurationError(msg)
self.ipolicy = FillIPolicy(constants.IPOLICY_DEFAULTS, self.ipolicy)
@property
"""
mydict = super(Cluster, self).ToDict()
- mydict["tcpudp_port_pool"] = list(self.tcpudp_port_pool)
+
+ if self.tcpudp_port_pool is None:
+ tcpudp_port_pool = []
+ else:
+ tcpudp_port_pool = list(self.tcpudp_port_pool)
+
+ mydict["tcpudp_port_pool"] = tcpudp_port_pool
+
return mydict
@classmethod
"""
obj = super(Cluster, cls).FromDict(val)
- if not isinstance(obj.tcpudp_port_pool, set):
+
+ if obj.tcpudp_port_pool is None:
+ obj.tcpudp_port_pool = set()
+ elif not isinstance(obj.tcpudp_port_pool, set):
obj.tcpudp_port_pool = set(obj.tcpudp_port_pool)
+
return obj
def SimpleFillDP(self, diskparams):
"""
mydict = super(_QueryResponseBase, self).ToDict()
- mydict["fields"] = self._ContainerToDicts(mydict["fields"])
+ mydict["fields"] = outils.ContainerToDicts(mydict["fields"])
return mydict
@classmethod
"""
obj = super(_QueryResponseBase, cls).FromDict(val)
- obj.fields = cls._ContainerFromDicts(obj.fields, list, QueryFieldDefinition)
+ obj.fields = \
+ outils.ContainerFromDicts(obj.fields, list, QueryFieldDefinition)
return obj
__slots__ = [
"name",
"serial_no",
- "network_type",
"mac_prefix",
- "family",
"network",
"network6",
"gateway",
"gateway6",
- "size",
"reservations",
"ext_reservations",
] + _TIMESTAMPS + _UUID
+ def HooksDict(self, prefix=""):
+ """Export a dictionary used by hooks with a network's information.
+
+ @type prefix: String
+ @param prefix: Prefix to prepend to the dict entries
+
+ """
+ result = {
+ "%sNETWORK_NAME" % prefix: self.name,
+ "%sNETWORK_UUID" % prefix: self.uuid,
+ "%sNETWORK_TAGS" % prefix: " ".join(self.GetTags()),
+ }
+ if self.network:
+ result["%sNETWORK_SUBNET" % prefix] = self.network
+ if self.gateway:
+ result["%sNETWORK_GATEWAY" % prefix] = self.gateway
+ if self.network6:
+ result["%sNETWORK_SUBNET6" % prefix] = self.network6
+ if self.gateway6:
+ result["%sNETWORK_GATEWAY6" % prefix] = self.gateway6
+ if self.mac_prefix:
+ result["%sNETWORK_MAC_PREFIX" % prefix] = self.mac_prefix
+
+ return result
+
+ @classmethod
+ def FromDict(cls, val):
+ """Custom function for networks.
+
+ Remove deprecated network_type and family.
+
+ """
+ if "network_type" in val:
+ del val["network_type"]
+ if "family" in val:
+ del val["family"]
+ obj = super(Network, cls).FromDict(val)
+ return obj
+
class SerializableConfigParser(ConfigParser.SafeConfigParser):
"""Simple wrapper over ConfigParse that allows serialization.
cfp = cls()
cfp.readfp(buf)
return cfp
+
+
+class LvmPvInfo(ConfigObject):
+ """Information about an LVM physical volume (PV).
+
+ @type name: string
+ @ivar name: name of the PV
+ @type vg_name: string
+ @ivar vg_name: name of the volume group containing the PV
+ @type size: float
+ @ivar size: size of the PV in MiB
+ @type free: float
+ @ivar free: free space in the PV, in MiB
+ @type attributes: string
+ @ivar attributes: PV attributes
+ @type lv_list: list of strings
+ @ivar lv_list: names of the LVs hosted on the PV
+ """
+ __slots__ = [
+ "name",
+ "vg_name",
+ "size",
+ "free",
+ "attributes",
+ "lv_list"
+ ]
+
+ def IsEmpty(self):
+ """Is this PV empty?
+
+ """
+ return self.size <= (self.free + 1)
+
+ def IsAllocatable(self):
+ """Is this PV allocatable?
+
+ """
+ return ("a" in self.attributes)
projects / ganeti-local / blobdiff