X-Git-Url: https://code.grnet.gr/git/ganeti-local/blobdiff_plain/81e3ab4f8c52e9813378b3cfbbbf015fa51416c0..5cc1f887224a4f56b2718fb782cd6241fa1372bf:/lib/config.py diff --git a/lib/config.py b/lib/config.py index 03a3d5a..9d87c2b 100644 --- a/lib/config.py +++ b/lib/config.py @@ -1,7 +1,7 @@ # # -# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Google Inc. +# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 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 @@ -50,6 +50,8 @@ from ganeti import serializer from ganeti import uidpool from ganeti import netutils from ganeti import runtime +from ganeti import pathutils +from ganeti import network _config_lock = locking.SharedLock("ConfigWriter") @@ -106,6 +108,17 @@ class TemporaryReservationManager: all_reserved.update(holder_reserved) return all_reserved + def GetECReserved(self, ec_id): + """ Used when you want to retrieve all reservations for a specific + execution context. E.g when commiting reserved IPs for a specific + network. + + """ + ec_reserved = set() + if ec_id in self._ec_reserved: + ec_reserved.update(self._ec_reserved[ec_id]) + return ec_reserved + def Generate(self, existing, generate_one_fn, ec_id): """Generate a new resource of this type @@ -133,6 +146,26 @@ def _MatchNameComponentIgnoreCase(short_name, names): return utils.MatchNameComponent(short_name, names, case_sensitive=False) +def _CheckInstanceDiskIvNames(disks): + """Checks if instance's disks' C{iv_name} attributes are in order. + + @type disks: list of L{objects.Disk} + @param disks: List of disks + @rtype: list of tuples; (int, string, string) + @return: List of wrongly named disks, each tuple contains disk index, + expected and actual name + + """ + result = [] + + for (idx, disk) in enumerate(disks): + exp_iv_name = "disk/%s" % idx + if disk.iv_name != exp_iv_name: + result.append((idx, exp_iv_name, disk.iv_name)) + + return result + + class ConfigWriter: """The interface to the cluster configuration. @@ -147,7 +180,7 @@ class ConfigWriter: self._config_data = None self._offline = offline if cfg_file is None: - self._cfg_file = constants.CLUSTER_CONF_FILE + self._cfg_file = pathutils.CLUSTER_CONF_FILE else: self._cfg_file = cfg_file self._getents = _getents @@ -156,8 +189,10 @@ class ConfigWriter: self._temporary_macs = TemporaryReservationManager() self._temporary_secrets = TemporaryReservationManager() self._temporary_lvs = TemporaryReservationManager() + self._temporary_ips = TemporaryReservationManager() self._all_rms = [self._temporary_ids, self._temporary_macs, - self._temporary_secrets, self._temporary_lvs] + self._temporary_secrets, self._temporary_lvs, + self._temporary_ips] # 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 @@ -186,18 +221,7 @@ class ConfigWriter: """Check if the cluster is configured. """ - 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 + return os.path.exists(pathutils.CLUSTER_CONF_FILE) @locking.ssynchronized(_config_lock, shared=1) def GetNdParams(self, node): @@ -212,14 +236,82 @@ class ConfigWriter: return self._config_data.cluster.FillND(node, nodegroup) @locking.ssynchronized(_config_lock, shared=1) - def GenerateMAC(self, ec_id): + def GetInstanceDiskParams(self, instance): + """Get the disk params populated with inherit chain. + + @type instance: L{objects.Instance} + @param instance: The instance we want to know the params for + @return: A dict with the filled in disk params + + """ + node = self._UnlockedGetNodeInfo(instance.primary_node) + nodegroup = self._UnlockedGetNodeGroup(node.group) + return self._UnlockedGetGroupDiskParams(nodegroup) + + @locking.ssynchronized(_config_lock, shared=1) + def GetGroupDiskParams(self, group): + """Get the disk params populated with inherit chain. + + @type group: L{objects.NodeGroup} + @param group: The group we want to know the params for + @return: A dict with the filled in disk params + + """ + return self._UnlockedGetGroupDiskParams(group) + + def _UnlockedGetGroupDiskParams(self, group): + """Get the disk params populated with inherit chain down to node-group. + + @type group: L{objects.NodeGroup} + @param group: The group we want to know the params for + @return: A dict with the filled in disk params + + """ + return self._config_data.cluster.SimpleFillDP(group.diskparams) + + def _UnlockedGetNetworkMACPrefix(self, net): + """Return the network mac prefix if it exists or the cluster level default. + + """ + prefix = None + if net: + net_uuid = self._UnlockedLookupNetwork(net) + if net_uuid: + nobj = self._UnlockedGetNetwork(net_uuid) + if nobj.mac_prefix: + prefix = nobj.mac_prefix + + return prefix + + def _GenerateOneMAC(self, prefix=None): + """Return a function that randomly generates a MAC suffic + and appends it to the given prefix. If prefix is not given get + the cluster level default. + + """ + if not prefix: + prefix = self._config_data.cluster.mac_prefix + + def GenMac(): + 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 + + return GenMac + + @locking.ssynchronized(_config_lock, shared=1) + def GenerateMAC(self, net, ec_id): """Generate a MAC for an instance. This should check the current instances for duplicates. """ existing = self._AllMACs() - return self._temporary_ids.Generate(existing, self._GenerateOneMAC, ec_id) + prefix = self._UnlockedGetNetworkMACPrefix(net) + gen_mac = self._GenerateOneMAC(prefix) + return self._temporary_ids.Generate(existing, gen_mac, ec_id) @locking.ssynchronized(_config_lock, shared=1) def ReserveMAC(self, mac, ec_id): @@ -235,6 +327,92 @@ class ConfigWriter: else: self._temporary_macs.Reserve(ec_id, mac) + def _UnlockedCommitTemporaryIps(self, ec_id): + """Commit all reserved IP address to their respective pools + + """ + for action, address, net_uuid in self._temporary_ips.GetECReserved(ec_id): + self._UnlockedCommitIp(action, net_uuid, address) + + def _UnlockedCommitIp(self, action, net_uuid, address): + """Commit a reserved IP address to an IP pool. + + The IP address is taken from the network's IP pool and marked as reserved. + + """ + nobj = self._UnlockedGetNetwork(net_uuid) + pool = network.AddressPool(nobj) + if action == constants.RESERVE_ACTION: + pool.Reserve(address) + elif action == constants.RELEASE_ACTION: + pool.Release(address) + + def _UnlockedReleaseIp(self, net_uuid, address, ec_id): + """Give a specific IP address back to an IP pool. + + The IP address is returned to the IP pool designated by pool_id and marked + as reserved. + + """ + self._temporary_ips.Reserve(ec_id, + (constants.RELEASE_ACTION, address, net_uuid)) + + @locking.ssynchronized(_config_lock, shared=1) + def ReleaseIp(self, net, address, ec_id): + """Give a specified IP address back to an IP pool. + + This is just a wrapper around _UnlockedReleaseIp. + + """ + net_uuid = self._UnlockedLookupNetwork(net) + if net_uuid: + self._UnlockedReleaseIp(net_uuid, address, ec_id) + + @locking.ssynchronized(_config_lock, shared=1) + def GenerateIp(self, net, ec_id): + """Find a free IPv4 address for an instance. + + """ + net_uuid = self._UnlockedLookupNetwork(net) + nobj = self._UnlockedGetNetwork(net_uuid) + pool = network.AddressPool(nobj) + + def gen_one(): + try: + ip = pool.GenerateFree() + except errors.AddressPoolError: + raise errors.ReservationError("Cannot generate IP. Network is full") + return (constants.RESERVE_ACTION, ip, net_uuid) + + _, address, _ = self._temporary_ips.Generate([], gen_one, ec_id) + return address + + def _UnlockedReserveIp(self, net_uuid, address, ec_id): + """Reserve a given IPv4 address for use by an instance. + + """ + nobj = self._UnlockedGetNetwork(net_uuid) + pool = network.AddressPool(nobj) + try: + isreserved = pool.IsReserved(address) + except errors.AddressPoolError: + raise errors.ReservationError("IP address not in network") + if isreserved: + raise errors.ReservationError("IP address already in use") + + return self._temporary_ips.Reserve(ec_id, + (constants.RESERVE_ACTION, + address, net_uuid)) + + @locking.ssynchronized(_config_lock, shared=1) + def ReserveIp(self, net, address, ec_id): + """Reserve a given IPv4 address for use by an instance. + + """ + net_uuid = self._UnlockedLookupNetwork(net) + if net_uuid: + return self._UnlockedReserveIp(net_uuid, address, ec_id) + @locking.ssynchronized(_config_lock, shared=1) def ReserveLV(self, lv_name, ec_id): """Reserve an VG/LV pair for an instance. @@ -426,16 +604,27 @@ class ConfigWriter: except errors.ConfigurationError, err: result.append("%s has invalid nicparams: %s" % (owner, err)) - def _helper_ipolicy(owner, params): + def _helper_ipolicy(owner, params, check_std): try: - objects.InstancePolicy.CheckParameterSyntax(params) + objects.InstancePolicy.CheckParameterSyntax(params, check_std) except errors.ConfigurationError, err: result.append("%s has invalid instance policy: %s" % (owner, err)) def _helper_ispecs(owner, params): - for key, value in params.iteritems(): - fullkey = "ipolicy/" + key - _helper(owner, fullkey, value, constants.ISPECS_PARAMETER_TYPES) + for key, value in params.items(): + if key in constants.IPOLICY_ISPECS: + fullkey = "ipolicy/" + key + _helper(owner, fullkey, value, constants.ISPECS_PARAMETER_TYPES) + else: + # FIXME: assuming list type + if key in constants.IPOLICY_PARAMETERS: + exp_type = float + else: + exp_type = list + if not isinstance(value, exp_type): + result.append("%s has invalid instance policy: for %s," + " expecting %s, got %s" % + (owner, key, exp_type.__name__, type(value))) # check cluster parameters _helper("cluster", "beparams", cluster.SimpleFillBE({}), @@ -445,7 +634,7 @@ class ConfigWriter: _helper_nic("cluster", cluster.SimpleFillNIC({})) _helper("cluster", "ndparams", cluster.SimpleFillND({}), constants.NDS_PARAMETER_TYPES) - _helper_ipolicy("cluster", cluster.SimpleFillIPolicy({})) + _helper_ipolicy("cluster", cluster.SimpleFillIPolicy({}), True) _helper_ispecs("cluster", cluster.SimpleFillIPolicy({})) # per-instance checks @@ -480,12 +669,12 @@ class ConfigWriter: cluster.FillBE(instance), constants.BES_PARAMETER_TYPES) # gather the drbd ports for duplicate checks - for dsk in instance.disks: + for (idx, dsk) in enumerate(instance.disks): if dsk.dev_type in constants.LDS_DRBD: tcp_port = dsk.logical_id[2] if tcp_port not in ports: ports[tcp_port] = [] - ports[tcp_port].append((instance.name, "drbd disk %s" % dsk.iv_name)) + ports[tcp_port].append((instance.name, "drbd disk %s" % idx)) # gather network port reservation net_port = getattr(instance, "network_port", None) if net_port is not None: @@ -499,6 +688,15 @@ class ConfigWriter: (instance.name, idx, msg) for msg in disk.Verify()]) result.extend(self._CheckDiskIDs(disk, seen_lids, seen_pids)) + wrong_names = _CheckInstanceDiskIvNames(instance.disks) + if wrong_names: + tmp = "; ".join(("name of disk %s should be '%s', but is '%s'" % + (idx, exp_name, actual_name)) + for (idx, exp_name, actual_name) in wrong_names) + + result.append("Instance '%s' has wrongly named disks: %s" % + (instance.name, tmp)) + # cluster-wide pool of free ports for free_port in cluster.tcpudp_port_pool: if free_port not in ports: @@ -562,7 +760,8 @@ class ConfigWriter: else: nodegroups_names.add(nodegroup.name) group_name = "group %s" % nodegroup.name - _helper_ipolicy(group_name, cluster.SimpleFillIPolicy(nodegroup.ipolicy)) + _helper_ipolicy(group_name, cluster.SimpleFillIPolicy(nodegroup.ipolicy), + False) _helper_ispecs(group_name, cluster.SimpleFillIPolicy(nodegroup.ipolicy)) if nodegroup.ndparams: _helper(group_name, "ndparams", @@ -605,7 +804,7 @@ class ConfigWriter: else: raise errors.ProgrammerError("NIC mode '%s' not handled" % nic_mode) - _AddIpAddress("%s/%s" % (link, nic.ip), + _AddIpAddress("%s/%s/%s" % (link, nic.ip, nic.network), "instance:%s/nic:%d" % (instance.name, idx)) for ip, owners in ips.items(): @@ -683,12 +882,15 @@ class ConfigWriter: def AddTcpUdpPort(self, port): """Adds a new port to the available port pool. + @warning: this method does not "flush" the configuration (via + L{_WriteConfig}); callers should do that themselves once the + configuration is stable + """ if not isinstance(port, int): raise errors.ProgrammerError("Invalid type passed for port") self._config_data.cluster.tcpudp_port_pool.add(port) - self._WriteConfig() @locking.ssynchronized(_config_lock, shared=1) def GetPortList(self): @@ -976,10 +1178,9 @@ class ConfigWriter: """ cluster = self._config_data.cluster - result = objects.MasterNetworkParameters(name=cluster.master_node, - ip=cluster.master_ip, - netmask=cluster.master_netmask, - netdev=cluster.master_netdev, + result = objects.MasterNetworkParameters( + name=cluster.master_node, ip=cluster.master_ip, + netmask=cluster.master_netmask, netdev=cluster.master_netdev, ip_family=cluster.primary_ip_family) return result @@ -1066,7 +1267,7 @@ class ConfigWriter: if target is None: if len(self._config_data.nodegroups) != 1: raise errors.OpPrereqError("More than one node group exists. Target" - " group must be specified explicitely.") + " group must be specified explicitly.") else: return self._config_data.nodegroups.keys()[0] if target in self._config_data.nodegroups: @@ -1142,6 +1343,17 @@ class ConfigWriter: for member_name in self._UnlockedGetNodeGroup(ngfn(node_name)).members) + @locking.ssynchronized(_config_lock, shared=1) + def GetMultiNodeGroupInfo(self, group_uuids): + """Get the configuration of multiple node groups. + + @param group_uuids: List of node group UUIDs + @rtype: list + @return: List of tuples of (group_uuid, group_info) + + """ + return [(uuid, self._UnlockedGetNodeGroup(uuid)) for uuid in group_uuids] + @locking.ssynchronized(_config_lock) def AddInstance(self, instance, ec_id): """Add an instance to the config. @@ -1173,6 +1385,7 @@ class ConfigWriter: self._config_data.instances[instance.name] = instance self._config_data.cluster.serial_no += 1 self._UnlockedReleaseDRBDMinors(instance.name) + self._UnlockedCommitTemporaryIps(ec_id) self._WriteConfig() def _EnsureUUID(self, item, ec_id): @@ -1234,6 +1447,15 @@ class ConfigWriter: if network_port is not None: self._config_data.cluster.tcpudp_port_pool.add(network_port) + instance = self._UnlockedGetInstanceInfo(instance_name) + + for nic in instance.nics: + if nic.network is not None and nic.ip is not None: + net_uuid = self._UnlockedLookupNetwork(nic.network) + if net_uuid: + # Return all IP addresses to the respective address pools + self._UnlockedCommitIp(constants.RELEASE_ACTION, net_uuid, nic.ip) + del self._config_data.instances[instance_name] self._config_data.cluster.serial_no += 1 self._WriteConfig() @@ -1249,24 +1471,27 @@ class ConfigWriter: """ if old_name not in self._config_data.instances: raise errors.ConfigurationError("Unknown instance '%s'" % old_name) - inst = self._config_data.instances[old_name] - del self._config_data.instances[old_name] + + # Operate on a copy to not loose instance object in case of a failure + inst = self._config_data.instances[old_name].Copy() inst.name = new_name - for disk in inst.disks: + for (idx, disk) in enumerate(inst.disks): if disk.dev_type == constants.LD_FILE: # rename the file paths in logical and physical id file_storage_dir = os.path.dirname(os.path.dirname(disk.logical_id[1])) - disk_fname = "disk%s" % disk.iv_name.split("/")[1] - disk.physical_id = disk.logical_id = (disk.logical_id[0], - utils.PathJoin(file_storage_dir, - inst.name, - disk_fname)) + disk.logical_id = (disk.logical_id[0], + utils.PathJoin(file_storage_dir, inst.name, + "disk%s" % idx)) + disk.physical_id = disk.logical_id + + # Actually replace instance object + del self._config_data.instances[old_name] + self._config_data.instances[inst.name] = inst # Force update of ssconf files self._config_data.cluster.serial_no += 1 - self._config_data.instances[inst.name] = inst self._WriteConfig() @locking.ssynchronized(_config_lock) @@ -1796,8 +2021,8 @@ class ConfigWriter: # Make sure the configuration has the right version _ValidateConfig(data) - if (not hasattr(data, 'cluster') or - not hasattr(data.cluster, 'rsahostkeypub')): + if (not hasattr(data, "cluster") or + not hasattr(data.cluster, "rsahostkeypub")): raise errors.ConfigurationError("Incomplete configuration" " (missing cluster.rsahostkeypub)") @@ -2002,6 +2227,9 @@ class ConfigWriter: nodegroups = ["%s %s" % (nodegroup.uuid, nodegroup.name) for nodegroup in self._config_data.nodegroups.values()] nodegroups_data = fn(utils.NiceSort(nodegroups)) + networks = ["%s %s" % (net.uuid, net.name) for net in + self._config_data.networks.values()] + networks_data = fn(utils.NiceSort(networks)) ssconf_values = { constants.SS_CLUSTER_NAME: cluster.cluster_name, @@ -2026,6 +2254,7 @@ class ConfigWriter: constants.SS_MAINTAIN_NODE_HEALTH: str(cluster.maintain_node_health), constants.SS_UID_POOL: uid_pool, constants.SS_NODEGROUPS: nodegroups_data, + constants.SS_NETWORKS: networks_data, } bad_values = [(k, v) for k, v in ssconf_values.items() if not isinstance(v, (str, basestring))] @@ -2099,7 +2328,7 @@ class ConfigWriter: return self._config_data.HasAnyDiskOfType(dev_type) @locking.ssynchronized(_config_lock) - def Update(self, target, feedback_fn): + def Update(self, target, feedback_fn, ec_id=None): """Notify function to be called after updates. This function must be called when an object (as returned by @@ -2127,6 +2356,8 @@ class ConfigWriter: test = target in self._config_data.instances.values() elif isinstance(target, objects.NodeGroup): test = target in self._config_data.nodegroups.values() + elif isinstance(target, objects.Network): + test = target in self._config_data.networks.values() else: raise errors.ProgrammerError("Invalid object type (%s) passed to" " ConfigWriter.Update" % type(target)) @@ -2144,6 +2375,10 @@ class ConfigWriter: if isinstance(target, objects.Instance): self._UnlockedReleaseDRBDMinors(target.name) + if ec_id is not None: + # Commit all ips reserved by OpInstanceSetParams and OpGroupSetParams + self._UnlockedCommitTemporaryIps(ec_id) + self._WriteConfig(feedback_fn=feedback_fn) @locking.ssynchronized(_config_lock) @@ -2153,3 +2388,199 @@ class ConfigWriter: """ for rm in self._all_rms: rm.DropECReservations(ec_id) + + @locking.ssynchronized(_config_lock, shared=1) + def GetAllNetworksInfo(self): + """Get configuration info of all the networks. + + """ + return dict(self._config_data.networks) + + def _UnlockedGetNetworkList(self): + """Get the list of networks. + + This function is for internal use, when the config lock is already held. + + """ + return self._config_data.networks.keys() + + @locking.ssynchronized(_config_lock, shared=1) + def GetNetworkList(self): + """Get the list of networks. + + @return: array of networks, ex. ["main", "vlan100", "200] + + """ + return self._UnlockedGetNetworkList() + + @locking.ssynchronized(_config_lock, shared=1) + def GetNetworkNames(self): + """Get a list of network names + + """ + names = [net.name + for net in self._config_data.networks.values()] + return names + + def _UnlockedGetNetwork(self, uuid): + """Returns information about a network. + + This function is for internal use, when the config lock is already held. + + """ + if uuid not in self._config_data.networks: + return None + + return self._config_data.networks[uuid] + + @locking.ssynchronized(_config_lock, shared=1) + def GetNetwork(self, uuid): + """Returns information about a network. + + It takes the information from the configuration file. + + @param uuid: UUID of the network + + @rtype: L{objects.Network} + @return: the network object + + """ + return self._UnlockedGetNetwork(uuid) + + @locking.ssynchronized(_config_lock) + def AddNetwork(self, net, ec_id, check_uuid=True): + """Add a network to the configuration. + + @type net: L{objects.Network} + @param net: the Network object to add + @type ec_id: string + @param ec_id: unique id for the job to use when creating a missing UUID + + """ + self._UnlockedAddNetwork(net, ec_id, check_uuid) + self._WriteConfig() + + def _UnlockedAddNetwork(self, net, ec_id, check_uuid): + """Add a network to the configuration. + + """ + logging.info("Adding network %s to configuration", net.name) + + if check_uuid: + self._EnsureUUID(net, ec_id) + + existing_uuid = self._UnlockedLookupNetwork(net.name) + if existing_uuid: + raise errors.OpPrereqError("Desired network name '%s' already" + " exists as a network (UUID: %s)" % + (net.name, existing_uuid), + errors.ECODE_EXISTS) + net.serial_no = 1 + self._config_data.networks[net.uuid] = net + self._config_data.cluster.serial_no += 1 + + def _UnlockedLookupNetwork(self, target): + """Lookup a network's UUID. + + @type target: string + @param target: network name or UUID + @rtype: string + @return: network UUID + @raises errors.OpPrereqError: when the target network cannot be found + + """ + if target in self._config_data.networks: + return target + for net in self._config_data.networks.values(): + if net.name == target: + return net.uuid + return None + + @locking.ssynchronized(_config_lock, shared=1) + def LookupNetwork(self, target): + """Lookup a network's UUID. + + This function is just a wrapper over L{_UnlockedLookupNetwork}. + + @type target: string + @param target: network name or UUID + @rtype: string + @return: network UUID + + """ + return self._UnlockedLookupNetwork(target) + + @locking.ssynchronized(_config_lock) + def RemoveNetwork(self, network_uuid): + """Remove a network from the configuration. + + @type network_uuid: string + @param network_uuid: the UUID of the network to remove + + """ + logging.info("Removing network %s from configuration", network_uuid) + + if network_uuid not in self._config_data.networks: + raise errors.ConfigurationError("Unknown network '%s'" % network_uuid) + + del self._config_data.networks[network_uuid] + self._config_data.cluster.serial_no += 1 + self._WriteConfig() + + def _UnlockedGetGroupNetParams(self, net, node): + """Get the netparams (mode, link) of a network. + + Get a network's netparams for a given node. + + @type net: string + @param net: network name + @type node: string + @param node: node name + @rtype: dict or None + @return: netparams + + """ + net_uuid = self._UnlockedLookupNetwork(net) + if net_uuid is None: + return None + + node_info = self._UnlockedGetNodeInfo(node) + nodegroup_info = self._UnlockedGetNodeGroup(node_info.group) + netparams = nodegroup_info.networks.get(net_uuid, None) + + return netparams + + @locking.ssynchronized(_config_lock, shared=1) + def GetGroupNetParams(self, net, node): + """Locking wrapper of _UnlockedGetGroupNetParams() + + """ + return self._UnlockedGetGroupNetParams(net, node) + + @locking.ssynchronized(_config_lock, shared=1) + def CheckIPInNodeGroup(self, ip, node): + """Check IP uniqueness in nodegroup. + + Check networks that are connected in the node's node group + if ip is contained in any of them. Used when creating/adding + a NIC to ensure uniqueness among nodegroups. + + @type ip: string + @param ip: ip address + @type node: string + @param node: node name + @rtype: (string, dict) or (None, None) + @return: (network name, netparams) + + """ + if ip is None: + return (None, None) + node_info = self._UnlockedGetNodeInfo(node) + nodegroup_info = self._UnlockedGetNodeGroup(node_info.group) + for net_uuid in nodegroup_info.networks.keys(): + net_info = self._UnlockedGetNetwork(net_uuid) + pool = network.AddressPool(net_info) + if pool.Contains(ip): + return (net_info.name, nodegroup_info.networks[net_uuid]) + + return (None, None)