X-Git-Url: https://code.grnet.gr/git/ganeti-local/blobdiff_plain/2f7140ba34e2d8af70e05cbdb32ec4a4cadcc466..5ef5cfeaf308498f7ee3195fcc55e3a853359ab5:/lib/config.py diff --git a/lib/config.py b/lib/config.py index acdca2e..aa479c0 100644 --- a/lib/config.py +++ b/lib/config.py @@ -32,9 +32,9 @@ much memory. """ import os -import tempfile import random import logging +import time from ganeti import errors from ganeti import locking @@ -43,10 +43,14 @@ from ganeti import constants from ganeti import rpc from ganeti import objects from ganeti import serializer +from ganeti import uidpool _config_lock = locking.SharedLock() +# job id used for resource management at config upgrade time +_UPGRADE_CONFIG_JID = "jid-cfg-upgrade" + def _ValidateConfig(data): """Verifies that a configuration objects looks valid. @@ -64,9 +68,67 @@ def _ValidateConfig(data): constants.CONFIG_VERSION)) +class TemporaryReservationManager: + """A temporary resource reservation manager. + + This is used to reserve resources in a job, before using them, making sure + other jobs cannot get them in the meantime. + + """ + def __init__(self): + self._ec_reserved = {} + + def Reserved(self, resource): + for holder_reserved in self._ec_reserved.items(): + if resource in holder_reserved: + return True + return False + + def Reserve(self, ec_id, resource): + if self.Reserved(resource): + raise errors.ReservationError("Duplicate reservation for resource: %s." % + (resource)) + if ec_id not in self._ec_reserved: + self._ec_reserved[ec_id] = set([resource]) + else: + self._ec_reserved[ec_id].add(resource) + + def DropECReservations(self, ec_id): + if ec_id in self._ec_reserved: + del self._ec_reserved[ec_id] + + def GetReserved(self): + all_reserved = set() + for holder_reserved in self._ec_reserved.values(): + all_reserved.update(holder_reserved) + return all_reserved + + def Generate(self, existing, generate_one_fn, ec_id): + """Generate a new resource of this type + + """ + assert callable(generate_one_fn) + + all_elems = self.GetReserved() + all_elems.update(existing) + retries = 64 + while retries > 0: + new_resource = generate_one_fn() + if new_resource is not None and new_resource not in all_elems: + break + else: + raise errors.ConfigurationError("Not able generate new resource" + " (last tried: %s)" % new_resource) + self.Reserve(ec_id, new_resource) + return new_resource + + class ConfigWriter: """The interface to the cluster configuration. + @ivar _temporary_lvs: reservation manager for temporary LVs + @ivar _all_rms: a list of all temporary reservation managers + """ def __init__(self, cfg_file=None, offline=False): self.write_count = 0 @@ -77,9 +139,13 @@ class ConfigWriter: self._cfg_file = constants.CLUSTER_CONF_FILE else: self._cfg_file = cfg_file - self._temporary_ids = set() + self._temporary_ids = TemporaryReservationManager() self._temporary_drbds = {} - self._temporary_macs = set() + self._temporary_macs = TemporaryReservationManager() + self._temporary_secrets = TemporaryReservationManager() + self._temporary_lvs = TemporaryReservationManager() + self._all_rms = [self._temporary_ids, self._temporary_macs, + self._temporary_secrets, self._temporary_lvs] # Note: in order to prevent errors when resolving our name in # _DistributeConfig, we compute it here once and reuse it; it's # better to raise an error before starting to modify the config @@ -96,59 +162,67 @@ class ConfigWriter: """ return os.path.exists(constants.CLUSTER_CONF_FILE) + def _GenerateOneMAC(self): + """Generate one mac address + + """ + prefix = self._config_data.cluster.mac_prefix + byte1 = random.randrange(0, 256) + byte2 = random.randrange(0, 256) + byte3 = random.randrange(0, 256) + mac = "%s:%02x:%02x:%02x" % (prefix, byte1, byte2, byte3) + return mac + @locking.ssynchronized(_config_lock, shared=1) - def GenerateMAC(self): + def GenerateMAC(self, ec_id): """Generate a MAC for an instance. This should check the current instances for duplicates. """ - prefix = self._config_data.cluster.mac_prefix - all_macs = self._AllMACs() - retries = 64 - while retries > 0: - byte1 = random.randrange(0, 256) - byte2 = random.randrange(0, 256) - byte3 = random.randrange(0, 256) - mac = "%s:%02x:%02x:%02x" % (prefix, byte1, byte2, byte3) - if mac not in all_macs and mac not in self._temporary_macs: - break - retries -= 1 - else: - raise errors.ConfigurationError("Can't generate unique MAC") - self._temporary_macs.add(mac) - return mac + existing = self._AllMACs() + return self._temporary_ids.Generate(existing, self._GenerateOneMAC, ec_id) @locking.ssynchronized(_config_lock, shared=1) - def IsMacInUse(self, mac): - """Predicate: check if the specified MAC is in use in the Ganeti cluster. + def ReserveMAC(self, mac, ec_id): + """Reserve a MAC for an instance. This only checks instances managed by this cluster, it does not check for potential collisions elsewhere. """ all_macs = self._AllMACs() - return mac in all_macs or mac in self._temporary_macs + if mac in all_macs: + raise errors.ReservationError("mac already in use") + else: + self._temporary_macs.Reserve(mac, ec_id) + + @locking.ssynchronized(_config_lock, shared=1) + def ReserveLV(self, lv_name, ec_id): + """Reserve an VG/LV pair for an instance. + + @type lv_name: string + @param lv_name: the logical volume name to reserve + + """ + all_lvs = self._AllLVs() + if lv_name in all_lvs: + raise errors.ReservationError("LV already in use") + else: + self._temporary_lvs.Reserve(lv_name, ec_id) @locking.ssynchronized(_config_lock, shared=1) - def GenerateDRBDSecret(self): + def GenerateDRBDSecret(self, ec_id): """Generate a DRBD secret. This checks the current disks for duplicates. """ - all_secrets = self._AllDRBDSecrets() - retries = 64 - while retries > 0: - secret = utils.GenerateSecret() - if secret not in all_secrets: - break - retries -= 1 - else: - raise errors.ConfigurationError("Can't generate unique DRBD secret") - return secret + return self._temporary_secrets.Generate(self._AllDRBDSecrets(), + utils.GenerateSecret, + ec_id) - def _ComputeAllLVs(self): + def _AllLVs(self): """Compute the list of all LVs. """ @@ -159,39 +233,48 @@ class ConfigWriter: lvnames.update(lv_list) return lvnames - @locking.ssynchronized(_config_lock, shared=1) - def GenerateUniqueID(self, exceptions=None): - """Generate an unique disk name. + def _AllIDs(self, include_temporary): + """Compute the list of all UUIDs and names we have. + + @type include_temporary: boolean + @param include_temporary: whether to include the _temporary_ids set + @rtype: set + @return: a set of IDs + + """ + existing = set() + if include_temporary: + existing.update(self._temporary_ids.GetReserved()) + existing.update(self._AllLVs()) + existing.update(self._config_data.instances.keys()) + existing.update(self._config_data.nodes.keys()) + existing.update([i.uuid for i in self._AllUUIDObjects() if i.uuid]) + return existing + + def _GenerateUniqueID(self, ec_id): + """Generate an unique UUID. This checks the current node, instances and disk names for duplicates. - @param exceptions: a list with some other names which should be checked - for uniqueness (used for example when you want to get - more than one id at one time without adding each one in - turn to the config file) - @rtype: string @return: the unique id """ - existing = set() - existing.update(self._temporary_ids) - existing.update(self._ComputeAllLVs()) - existing.update(self._config_data.instances.keys()) - existing.update(self._config_data.nodes.keys()) - if exceptions is not None: - existing.update(exceptions) - retries = 64 - while retries > 0: - unique_id = utils.NewUUID() - if unique_id not in existing and unique_id is not None: - break - else: - raise errors.ConfigurationError("Not able generate an unique ID" - " (last tried ID: %s" % unique_id) - self._temporary_ids.add(unique_id) - return unique_id + existing = self._AllIDs(include_temporary=False) + return self._temporary_ids.Generate(existing, utils.NewUUID, ec_id) + + @locking.ssynchronized(_config_lock, shared=1) + def GenerateUniqueID(self, ec_id): + """Generate an unique ID. + + This is just a wrapper over the unlocked version. + + @type ec_id: string + @param ec_id: unique id for the job to reserve the id to + + """ + return self._GenerateUniqueID(ec_id) def _AllMACs(self): """Return all MACs present in the config. @@ -273,8 +356,30 @@ class ConfigWriter: data = self._config_data seen_lids = [] seen_pids = [] + + # global cluster checks + if not data.cluster.enabled_hypervisors: + result.append("enabled hypervisors list doesn't have any entries") + invalid_hvs = set(data.cluster.enabled_hypervisors) - constants.HYPER_TYPES + if invalid_hvs: + result.append("enabled hypervisors contains invalid entries: %s" % + invalid_hvs) + missing_hvp = (set(data.cluster.enabled_hypervisors) - + set(data.cluster.hvparams.keys())) + if missing_hvp: + result.append("hypervisor parameters missing for the enabled" + " hypervisor(s) %s" % utils.CommaJoin(missing_hvp)) + + if data.cluster.master_node not in data.nodes: + result.append("cluster has invalid primary node '%s'" % + data.cluster.master_node) + + # per-instance checks for instance_name in data.instances: instance = data.instances[instance_name] + if instance.name != instance_name: + result.append("instance '%s' is indexed by wrong name '%s'" % + (instance.name, instance_name)) if instance.primary_node not in data.nodes: result.append("instance '%s' has invalid primary node '%s'" % (instance_name, instance.primary_node)) @@ -321,7 +426,7 @@ class ConfigWriter: for pnum in keys: pdata = ports[pnum] if len(pdata) > 1: - txt = ", ".join(["%s/%s" % val for val in pdata]) + txt = utils.CommaJoin(["%s/%s" % val for val in pdata]) result.append("tcp/udp port %s has duplicates: %s" % (pnum, txt)) # highest used tcp port check @@ -334,13 +439,16 @@ class ConfigWriter: result.append("Master node is not a master candidate") # master candidate checks - mc_now, mc_max = self._UnlockedGetMasterCandidateStats() + mc_now, mc_max, _ = self._UnlockedGetMasterCandidateStats() if mc_now < mc_max: result.append("Not enough master candidates: actual %d, target %d" % (mc_now, mc_max)) # node checks - for node in data.nodes.values(): + for node_name, node in data.nodes.items(): + if node.name != node_name: + result.append("Node '%s' is indexed by wrong name '%s'" % + (node.name, node_name)) if [node.master_candidate, node.drained, node.offline].count(True) > 1: result.append("Node %s state is invalid: master_candidate=%s," " drain=%s, offline=%s" % @@ -348,11 +456,49 @@ class ConfigWriter: node.offline)) # drbd minors check - d_map, duplicates = self._UnlockedComputeDRBDMap() + _, duplicates = self._UnlockedComputeDRBDMap() for node, minor, instance_a, instance_b in duplicates: result.append("DRBD minor %d on node %s is assigned twice to instances" " %s and %s" % (minor, node, instance_a, instance_b)) + # IP checks + default_nicparams = data.cluster.nicparams[constants.PP_DEFAULT] + ips = {} + + def _AddIpAddress(ip, name): + ips.setdefault(ip, []).append(name) + + _AddIpAddress(data.cluster.master_ip, "cluster_ip") + + for node in data.nodes.values(): + _AddIpAddress(node.primary_ip, "node:%s/primary" % node.name) + if node.secondary_ip != node.primary_ip: + _AddIpAddress(node.secondary_ip, "node:%s/secondary" % node.name) + + for instance in data.instances.values(): + for idx, nic in enumerate(instance.nics): + if nic.ip is None: + continue + + nicparams = objects.FillDict(default_nicparams, nic.nicparams) + nic_mode = nicparams[constants.NIC_MODE] + nic_link = nicparams[constants.NIC_LINK] + + if nic_mode == constants.NIC_MODE_BRIDGED: + link = "bridge:%s" % nic_link + elif nic_mode == constants.NIC_MODE_ROUTED: + link = "route:%s" % nic_link + else: + raise errors.ProgrammerError("NIC mode '%s' not handled" % nic_mode) + + _AddIpAddress("%s/%s" % (link, nic.ip), + "instance:%s/nic:%d" % (instance.name, idx)) + + for ip, owners in ips.items(): + if len(owners) > 1: + result.append("IP address %s is used by multiple owners: %s" % + (ip, utils.CommaJoin(owners))) + return result @locking.ssynchronized(_config_lock, shared=1) @@ -658,7 +804,7 @@ class ConfigWriter: """Get the hypervisor type for this cluster. """ - return self._config_data.cluster.default_hypervisor + return self._config_data.cluster.enabled_hypervisors[0] @locking.ssynchronized(_config_lock, shared=1) def GetHostKey(self): @@ -671,7 +817,7 @@ class ConfigWriter: return self._config_data.cluster.rsahostkeypub @locking.ssynchronized(_config_lock) - def AddInstance(self, instance): + def AddInstance(self, instance, ec_id): """Add an instance to the config. This should be used after creating a new instance. @@ -691,16 +837,31 @@ class ConfigWriter: for nic in instance.nics: if nic.mac in all_macs: raise errors.ConfigurationError("Cannot add instance %s:" - " MAC address '%s' already in use." % (instance.name, nic.mac)) + " MAC address '%s' already in use." % + (instance.name, nic.mac)) + + self._EnsureUUID(instance, ec_id) instance.serial_no = 1 + instance.ctime = instance.mtime = time.time() self._config_data.instances[instance.name] = instance self._config_data.cluster.serial_no += 1 self._UnlockedReleaseDRBDMinors(instance.name) - for nic in instance.nics: - self._temporary_macs.discard(nic.mac) self._WriteConfig() + def _EnsureUUID(self, item, ec_id): + """Ensures a given object has a valid UUID. + + @param item: the instance or node to be checked + @param ec_id: the execution context id for the uuid reservation + + """ + if not item.uuid: + item.uuid = self._GenerateUniqueID(ec_id) + elif item.uuid in self._AllIDs(include_temporary=True): + raise errors.ConfigurationError("Cannot add '%s': UUID %s already" + " in use" % (item.name, item.uuid)) + def _SetInstanceStatus(self, instance_name, status): """Set the instance's status to a given value. @@ -715,6 +876,7 @@ class ConfigWriter: if instance.admin_up != status: instance.admin_up = status instance.serial_no += 1 + instance.mtime = time.time() self._WriteConfig() @locking.ssynchronized(_config_lock) @@ -755,9 +917,9 @@ class ConfigWriter: # rename the file paths in logical and physical id file_storage_dir = os.path.dirname(os.path.dirname(disk.logical_id[1])) disk.physical_id = disk.logical_id = (disk.logical_id[0], - os.path.join(file_storage_dir, - inst.name, - disk.iv_name)) + utils.PathJoin(file_storage_dir, + inst.name, + disk.iv_name)) self._config_data.instances[inst.name] = inst self._WriteConfig() @@ -793,7 +955,8 @@ class ConfigWriter: """ return utils.MatchNameComponent(short_name, - self._config_data.instances.keys()) + self._config_data.instances.keys(), + case_sensitive=False) def _UnlockedGetInstanceInfo(self, instance_name): """Returns information about an instance. @@ -836,16 +999,19 @@ class ConfigWriter: return my_dict @locking.ssynchronized(_config_lock) - def AddNode(self, node): + def AddNode(self, node, ec_id): """Add a node to the configuration. @type node: L{objects.Node} @param node: a Node instance """ - logging.info("Adding node %s to configuration" % node.name) + logging.info("Adding node %s to configuration", node.name) + + self._EnsureUUID(node, ec_id) node.serial_no = 1 + node.ctime = node.mtime = time.time() self._config_data.nodes[node.name] = node self._config_data.cluster.serial_no += 1 self._WriteConfig() @@ -855,7 +1021,7 @@ class ConfigWriter: """Remove a node from the configuration. """ - logging.info("Removing node %s from configuration" % node_name) + logging.info("Removing node %s from configuration", node_name) if node_name not in self._config_data.nodes: raise errors.ConfigurationError("Unknown node '%s'" % node_name) @@ -870,7 +1036,8 @@ class ConfigWriter: """ return utils.MatchNameComponent(short_name, - self._config_data.nodes.keys()) + self._config_data.nodes.keys(), + case_sensitive=False) def _UnlockedGetNodeInfo(self, node_name): """Get the configuration of a node, as stored in the config. @@ -889,7 +1056,6 @@ class ConfigWriter: return self._config_data.nodes[node_name] - @locking.ssynchronized(_config_lock, shared=1) def GetNodeInfo(self, node_name): """Get the configuration of a node, as stored in the config. @@ -915,7 +1081,6 @@ class ConfigWriter: """ return self._config_data.nodes.keys() - @locking.ssynchronized(_config_lock, shared=1) def GetNodeList(self): """Return the list of nodes which are in the configuration. @@ -923,8 +1088,7 @@ class ConfigWriter: """ return self._UnlockedGetNodeList() - @locking.ssynchronized(_config_lock, shared=1) - def GetOnlineNodeList(self): + def _UnlockedGetOnlineNodeList(self): """Return the list of nodes which are online. """ @@ -933,6 +1097,13 @@ class ConfigWriter: return [node.name for node in all_nodes if not node.offline] @locking.ssynchronized(_config_lock, shared=1) + def GetOnlineNodeList(self): + """Return the list of nodes which are online. + + """ + return self._UnlockedGetOnlineNodeList() + + @locking.ssynchronized(_config_lock, shared=1) def GetAllNodesInfo(self): """Get the configuration of all nodes. @@ -951,10 +1122,10 @@ class ConfigWriter: @type exceptions: list @param exceptions: if passed, list of nodes that should be ignored @rtype: tuple - @return: tuple of (current, desired and possible) + @return: tuple of (current, desired and possible, possible) """ - mc_now = mc_max = 0 + mc_now = mc_should = mc_max = 0 for node in self._config_data.nodes.values(): if exceptions and node.name in exceptions: continue @@ -962,8 +1133,8 @@ class ConfigWriter: mc_max += 1 if node.master_candidate: mc_now += 1 - mc_max = min(mc_max, self._config_data.cluster.candidate_pool_size) - return (mc_now, mc_max) + mc_should = min(mc_max, self._config_data.cluster.candidate_pool_size) + return (mc_now, mc_should, mc_max) @locking.ssynchronized(_config_lock, shared=1) def GetMasterCandidateStats(self, exceptions=None): @@ -980,14 +1151,16 @@ class ConfigWriter: return self._UnlockedGetMasterCandidateStats(exceptions) @locking.ssynchronized(_config_lock) - def MaintainCandidatePool(self): + def MaintainCandidatePool(self, exceptions): """Try to grow the candidate pool to the desired size. + @type exceptions: list + @param exceptions: if passed, list of nodes that should be ignored @rtype: list @return: list with the adjusted nodes (L{objects.Node} instances) """ - mc_now, mc_max = self._UnlockedGetMasterCandidateStats() + mc_now, mc_max, _ = self._UnlockedGetMasterCandidateStats(exceptions) mod_list = [] if mc_now < mc_max: node_list = self._config_data.nodes.keys() @@ -996,7 +1169,8 @@ class ConfigWriter: if mc_now >= mc_max: break node = self._config_data.nodes[name] - if node.master_candidate or node.offline or node.drained: + if (node.master_candidate or node.offline or node.drained or + node.name in exceptions): continue mod_list.append(node) node.master_candidate = True @@ -1017,19 +1191,26 @@ class ConfigWriter: """ self._config_data.serial_no += 1 + self._config_data.mtime = time.time() + + def _AllUUIDObjects(self): + """Returns all objects with uuid attributes. + + """ + return (self._config_data.instances.values() + + self._config_data.nodes.values() + + [self._config_data.cluster]) def _OpenConfig(self): """Read the config data from disk. """ - f = open(self._cfg_file, 'r') + raw_data = utils.ReadFile(self._cfg_file) + try: - try: - data = objects.ConfigData.FromDict(serializer.Load(f.read())) - except Exception, err: - raise errors.ConfigurationError(err) - finally: - f.close() + data = objects.ConfigData.FromDict(serializer.Load(raw_data)) + except Exception, err: + raise errors.ConfigurationError(err) # Make sure the configuration has the right version _ValidateConfig(data) @@ -1038,12 +1219,41 @@ class ConfigWriter: not hasattr(data.cluster, 'rsahostkeypub')): raise errors.ConfigurationError("Incomplete configuration" " (missing cluster.rsahostkeypub)") + + # Upgrade configuration if needed + data.UpgradeConfig() + self._config_data = data # reset the last serial as -1 so that the next write will cause # ssconf update self._last_cluster_serial = -1 - def _DistributeConfig(self): + # And finally run our (custom) config upgrade sequence + self._UpgradeConfig() + + def _UpgradeConfig(self): + """Run upgrade steps that cannot be done purely in the objects. + + This is because some data elements need uniqueness across the + whole configuration, etc. + + @warning: this function will call L{_WriteConfig()}, so it needs + to either be called with the lock held or from a safe place + (the constructor) + + """ + modified = False + for item in self._AllUUIDObjects(): + if item.uuid is None: + item.uuid = self._GenerateUniqueID(_UPGRADE_CONFIG_JID) + modified = True + if modified: + self._WriteConfig() + # This is ok even if it acquires the internal lock, as _UpgradeConfig is + # only called at config init time, without the lock held + self.DropECReservations(_UPGRADE_CONFIG_JID) + + def _DistributeConfig(self, feedback_fn): """Distribute the configuration to the other nodes. Currently, this only copies the configuration file. In the future, @@ -1052,6 +1262,7 @@ class ConfigWriter: """ if self._offline: return True + bad = False node_list = [] @@ -1073,53 +1284,66 @@ class ConfigWriter: result = rpc.RpcRunner.call_upload_file(node_list, self._cfg_file, address_list=addr_list) for to_node, to_result in result.items(): - msg = to_result.RemoteFailMsg() + msg = to_result.fail_msg if msg: msg = ("Copy of file %s to node %s failed: %s" % (self._cfg_file, to_node, msg)) logging.error(msg) + + if feedback_fn: + feedback_fn(msg) + bad = True + return not bad - def _WriteConfig(self, destination=None): + def _WriteConfig(self, destination=None, feedback_fn=None): """Write the configuration data to persistent storage. """ + assert feedback_fn is None or callable(feedback_fn) + + # Warn on config errors, but don't abort the save - the + # configuration has already been modified, and we can't revert; + # the best we can do is to warn the user and save as is, leaving + # recovery to the user config_errors = self._UnlockedVerifyConfig() if config_errors: - raise errors.ConfigurationError("Configuration data is not" - " consistent: %s" % - (", ".join(config_errors))) + errmsg = ("Configuration data is not consistent: %s" % + (utils.CommaJoin(config_errors))) + logging.critical(errmsg) + if feedback_fn: + feedback_fn(errmsg) + if destination is None: destination = self._cfg_file self._BumpSerialNo() txt = serializer.Dump(self._config_data.ToDict()) - dir_name, file_name = os.path.split(destination) - fd, name = tempfile.mkstemp('.newconfig', file_name, dir_name) - f = os.fdopen(fd, 'w') - try: - f.write(txt) - os.fsync(f.fileno()) - finally: - f.close() - # we don't need to do os.close(fd) as f.close() did it - os.rename(name, destination) + + utils.WriteFile(destination, data=txt) + self.write_count += 1 # and redistribute the config file to master candidates - self._DistributeConfig() + self._DistributeConfig(feedback_fn) # Write ssconf files on all nodes (including locally) if self._last_cluster_serial < self._config_data.cluster.serial_no: if not self._offline: - result = rpc.RpcRunner.call_write_ssconf_files(\ - self._UnlockedGetNodeList(), + result = rpc.RpcRunner.call_write_ssconf_files( + self._UnlockedGetOnlineNodeList(), self._UnlockedGetSsconfValues()) + for nname, nresu in result.items(): - msg = nresu.RemoteFailMsg() + msg = nresu.fail_msg if msg: - logging.warning("Error while uploading ssconf files to" - " node %s: %s", nname, msg) + errmsg = ("Error while uploading ssconf files to" + " node %s: %s" % (nname, msg)) + logging.warning(errmsg) + + if feedback_fn: + feedback_fn(errmsg) + self._last_cluster_serial = self._config_data.cluster.serial_no def _UnlockedGetSsconfValues(self): @@ -1134,56 +1358,49 @@ class ConfigWriter: instance_names = utils.NiceSort(self._UnlockedGetInstanceList()) node_names = utils.NiceSort(self._UnlockedGetNodeList()) node_info = [self._UnlockedGetNodeInfo(name) for name in node_names] + node_pri_ips = ["%s %s" % (ninfo.name, ninfo.primary_ip) + for ninfo in node_info] + node_snd_ips = ["%s %s" % (ninfo.name, ninfo.secondary_ip) + for ninfo in node_info] instance_data = fn(instance_names) off_data = fn(node.name for node in node_info if node.offline) on_data = fn(node.name for node in node_info if not node.offline) mc_data = fn(node.name for node in node_info if node.master_candidate) + mc_ips_data = fn(node.primary_ip for node in node_info + if node.master_candidate) node_data = fn(node_names) + node_pri_ips_data = fn(node_pri_ips) + node_snd_ips_data = fn(node_snd_ips) cluster = self._config_data.cluster cluster_tags = fn(cluster.GetTags()) + + hypervisor_list = fn(cluster.enabled_hypervisors) + + uid_pool = uidpool.FormatUidPool(cluster.uid_pool, separator="\n") + return { constants.SS_CLUSTER_NAME: cluster.cluster_name, constants.SS_CLUSTER_TAGS: cluster_tags, constants.SS_FILE_STORAGE_DIR: cluster.file_storage_dir, constants.SS_MASTER_CANDIDATES: mc_data, + constants.SS_MASTER_CANDIDATES_IPS: mc_ips_data, constants.SS_MASTER_IP: cluster.master_ip, constants.SS_MASTER_NETDEV: cluster.master_netdev, constants.SS_MASTER_NODE: cluster.master_node, constants.SS_NODE_LIST: node_data, + constants.SS_NODE_PRIMARY_IPS: node_pri_ips_data, + constants.SS_NODE_SECONDARY_IPS: node_snd_ips_data, constants.SS_OFFLINE_NODES: off_data, constants.SS_ONLINE_NODES: on_data, constants.SS_INSTANCE_LIST: instance_data, constants.SS_RELEASE_VERSION: constants.RELEASE_VERSION, + constants.SS_HYPERVISOR_LIST: hypervisor_list, + constants.SS_MAINTAIN_NODE_HEALTH: str(cluster.maintain_node_health), + constants.SS_UID_POOL: uid_pool, } - @locking.ssynchronized(_config_lock) - def InitConfig(self, version, cluster_config, master_node_config): - """Create the initial cluster configuration. - - It will contain the current node, which will also be the master - node, and no instances. - - @type version: int - @param version: Configuration version - @type cluster_config: objects.Cluster - @param cluster_config: Cluster configuration - @type master_node_config: objects.Node - @param master_node_config: Master node configuration - - """ - nodes = { - master_node_config.name: master_node_config, - } - - self._config_data = objects.ConfigData(version=version, - cluster=cluster_config, - nodes=nodes, - instances={}, - serial_no=1) - self._WriteConfig() - @locking.ssynchronized(_config_lock, shared=1) def GetVGName(self): """Return the volume group name. @@ -1218,7 +1435,7 @@ class ConfigWriter: return self._config_data.cluster @locking.ssynchronized(_config_lock) - def Update(self, target): + def Update(self, target, feedback_fn): """Notify function to be called after updates. This function must be called when an object (as returned by @@ -1230,6 +1447,7 @@ class ConfigWriter: @param target: an instance of either L{objects.Cluster}, L{objects.Node} or L{objects.Instance} which is existing in the cluster + @param feedback_fn: Callable feedback function """ if self._config_data is None: @@ -1250,14 +1468,22 @@ class ConfigWriter: raise errors.ConfigurationError("Configuration updated since object" " has been read or unknown object") target.serial_no += 1 + target.mtime = now = time.time() if update_serial: # for node updates, we need to increase the cluster serial too self._config_data.cluster.serial_no += 1 + self._config_data.cluster.mtime = now if isinstance(target, objects.Instance): self._UnlockedReleaseDRBDMinors(target.name) - for nic in target.nics: - self._temporary_macs.discard(nic.mac) - self._WriteConfig() + self._WriteConfig(feedback_fn=feedback_fn) + + @locking.ssynchronized(_config_lock) + def DropECReservations(self, ec_id): + """Drop per-execution-context reservations + + """ + for rm in self._all_rms: + rm.DropECReservations(ec_id)