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OpenStack Study: n1kv_neutron_plugin.py**** CubicPower OpenStack Study ****
# vim: tabstop=4 shiftwidth=4 softtabstop=4 # Copyright 2013 Cisco Systems, Inc. # # Licensed under the Apache License, Version 2.0 (the "License"); you may # not use this file except in compliance with the License. You may obtain # a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the # License for the specific language governing permissions and limitations # under the License. # # @author: Aruna Kushwaha, Cisco Systems, Inc. # @author: Rudrajit Tapadar, Cisco Systems, Inc. # @author: Abhishek Raut, Cisco Systems, Inc. # @author: Sergey Sudakovich, Cisco Systems, Inc. import eventlet from neutron.api.rpc.agentnotifiers import dhcp_rpc_agent_api from neutron.api.rpc.agentnotifiers import l3_rpc_agent_api from neutron.api.v2 import attributes from neutron.common import constants from neutron.common import exceptions as n_exc from neutron.common import rpc as q_rpc from neutron.common import topics from neutron.common import utils from neutron.db import agents_db from neutron.db import agentschedulers_db from neutron.db import db_base_plugin_v2 from neutron.db import dhcp_rpc_base from neutron.db import external_net_db from neutron.db import extraroute_db from neutron.db import l3_db from neutron.db import l3_rpc_base from neutron.db import portbindings_db from neutron.extensions import portbindings from neutron.extensions import providernet from neutron.openstack.common import log as logging from neutron.openstack.common import rpc from neutron.openstack.common import uuidutils as uuidutils from neutron.plugins.cisco.common import cisco_constants as c_const from neutron.plugins.cisco.common import cisco_credentials_v2 as c_cred from neutron.plugins.cisco.common import cisco_exceptions from neutron.plugins.cisco.common import config as c_conf from neutron.plugins.cisco.db import n1kv_db_v2 from neutron.plugins.cisco.db import network_db_v2 from neutron.plugins.cisco.extensions import n1kv from neutron.plugins.cisco.n1kv import n1kv_client from neutron.plugins.common import constants as svc_constants LOG = logging.getLogger(__name__)
**** CubicPower OpenStack Study **** class N1kvRpcCallbacks(dhcp_rpc_base.DhcpRpcCallbackMixin,
l3_rpc_base.L3RpcCallbackMixin): """Class to handle agent RPC calls.""" # Set RPC API version to 1.1 by
**** CubicPower OpenStack Study **** def create_rpc_dispatcher(self): """Get the rpc dispatcher for this rpc manager. If a manager would like to set an rpc API version, or support more than one class as the target of rpc messages, override this method. """ return q_rpc.PluginRpcDispatcher([self, agents_db.AgentExtRpcCallback()])
**** CubicPower OpenStack Study **** class N1kvNeutronPluginV2(db_base_plugin_v2.NeutronDbPluginV2,
external_net_db.External_net_db_mixin,
extraroute_db.ExtraRoute_db_mixin,
l3_db.L3_NAT_db_mixin,
portbindings_db.PortBindingMixin,
n1kv_db_v2.NetworkProfile_db_mixin,
n1kv_db_v2.PolicyProfile_db_mixin,
network_db_v2.Credential_db_mixin,
agentschedulers_db.AgentSchedulerDbMixin): """ Implement the Neutron abstractions using Cisco Nexus1000V. Refer README file for the architecture, new features, and workflow """ # This attribute specifies whether the plugin supports or not # bulk operations. __native_bulk_support = False supported_extension_aliases = ["provider", "agent", "n1kv", "network_profile", "policy_profile", "external-net", "router", "binding", "credential"]
**** CubicPower OpenStack Study **** def __init__(self, configfile=None): """ Initialize Nexus1000V Neutron plugin. 1. Initialize VIF type to OVS 2. Initialize Nexus1000v and Credential DB 3. Establish communication with Cisco Nexus1000V """ super(N1kvNeutronPluginV2, self).__init__() self.base_binding_dict = { portbindings.VIF_TYPE: portbindings.VIF_TYPE_OVS, portbindings.VIF_DETAILS: { # TODO(rkukura): Replace with new VIF security details portbindings.CAP_PORT_FILTER: 'security-group' in self.supported_extension_aliases}} c_cred.Store.initialize() self._setup_vsm() self._setup_rpc()
**** CubicPower OpenStack Study **** def _setup_rpc(self): # RPC support self.service_topics = {svc_constants.CORE: topics.PLUGIN, svc_constants.L3_ROUTER_NAT: topics.L3PLUGIN} self.conn = rpc.create_connection(new=True) self.dispatcher = N1kvRpcCallbacks().create_rpc_dispatcher() for svc_topic in self.service_topics.values(): self.conn.create_consumer(svc_topic, self.dispatcher, fanout=False) self.dhcp_agent_notifier = dhcp_rpc_agent_api.DhcpAgentNotifyAPI() self.l3_agent_notifier = l3_rpc_agent_api.L3AgentNotify # Consume from all consumers in a thread self.conn.consume_in_thread()
**** CubicPower OpenStack Study **** def _setup_vsm(self): """ Setup Cisco Nexus 1000V related parameters and pull policy profiles. Retrieve all the policy profiles from the VSM when the plugin is is instantiated for the first time and then continue to poll for policy profile updates. """ LOG.debug(_('_setup_vsm')) self.agent_vsm = True # Retrieve all the policy profiles from VSM. self._populate_policy_profiles() # Continue to poll VSM for any create/delete of policy profiles. eventlet.spawn(self._poll_policy_profiles)
**** CubicPower OpenStack Study **** def _poll_policy_profiles(self): """Start a green thread to pull policy profiles from VSM.""" while True: self._poll_policies(event_type='port_profile') eventlet.sleep(int(c_conf.CISCO_N1K.poll_duration))
**** CubicPower OpenStack Study **** def _populate_policy_profiles(self): """ Populate all the policy profiles from VSM. The tenant id is not available when the policy profiles are polled from the VSM. Hence we associate the policy profiles with fake tenant-ids. """ LOG.debug(_('_populate_policy_profiles')) try: n1kvclient = n1kv_client.Client() policy_profiles = n1kvclient.list_port_profiles() LOG.debug(_('_populate_policy_profiles %s'), policy_profiles) if policy_profiles: for profile in policy_profiles['body'][c_const.SET]: if c_const.ID and c_const.NAME in profile: profile_id = profile[c_const.PROPERTIES][c_const.ID] profile_name = profile[c_const. PROPERTIES][c_const.NAME] self._add_policy_profile(profile_name, profile_id) self._remove_all_fake_policy_profiles() except (cisco_exceptions.VSMError, cisco_exceptions.VSMConnectionFailed): LOG.warning(_('No policy profile populated from VSM'))
**** CubicPower OpenStack Study **** def _poll_policies(self, event_type=None, epoch=None, tenant_id=None): """ Poll for Policy Profiles from Cisco Nexus1000V for any update/delete. """ LOG.debug(_('_poll_policies')) try: n1kvclient = n1kv_client.Client() policy_profiles = n1kvclient.list_events(event_type, epoch) if policy_profiles: for profile in policy_profiles['body'][c_const.SET]: if c_const.NAME in profile: # Extract commands from the events XML. cmd = profile[c_const.PROPERTIES]['cmd'] cmds = cmd.split(';') cmdwords = cmds[1].split() profile_name = profile[c_const. PROPERTIES][c_const.NAME] # Delete the policy profile from db if deleted on VSM if 'no' in cmdwords[0]: p = self._get_policy_profile_by_name(profile_name) if p: self._delete_policy_profile(p['id']) # Add policy profile to neutron DB idempotently elif c_const.ID in profile[c_const.PROPERTIES]: profile_id = profile[c_const. PROPERTIES][c_const.ID] self._add_policy_profile( profile_name, profile_id, tenant_id) # Replace tenant-id for profile bindings with admin's tenant-id self._remove_all_fake_policy_profiles() except (cisco_exceptions.VSMError, cisco_exceptions.VSMConnectionFailed): LOG.warning(_('No policy profile updated from VSM'))
**** CubicPower OpenStack Study **** def _extend_network_dict_provider(self, context, network): """Add extended network parameters.""" binding = n1kv_db_v2.get_network_binding(context.session, network['id']) network[providernet.NETWORK_TYPE] = binding.network_type if binding.network_type == c_const.NETWORK_TYPE_OVERLAY: network[providernet.PHYSICAL_NETWORK] = None network[providernet.SEGMENTATION_ID] = binding.segmentation_id network[n1kv.MULTICAST_IP] = binding.multicast_ip elif binding.network_type == c_const.NETWORK_TYPE_VLAN: network[providernet.PHYSICAL_NETWORK] = binding.physical_network network[providernet.SEGMENTATION_ID] = binding.segmentation_id elif binding.network_type == c_const.NETWORK_TYPE_TRUNK: network[providernet.PHYSICAL_NETWORK] = binding.physical_network network[providernet.SEGMENTATION_ID] = None network[n1kv.MULTICAST_IP] = None elif binding.network_type == c_const.NETWORK_TYPE_MULTI_SEGMENT: network[providernet.PHYSICAL_NETWORK] = None network[providernet.SEGMENTATION_ID] = None network[n1kv.MULTICAST_IP] = None
**** CubicPower OpenStack Study **** def _process_provider_create(self, context, attrs): network_type = attrs.get(providernet.NETWORK_TYPE) physical_network = attrs.get(providernet.PHYSICAL_NETWORK) segmentation_id = attrs.get(providernet.SEGMENTATION_ID) network_type_set = attributes.is_attr_set(network_type) physical_network_set = attributes.is_attr_set(physical_network) segmentation_id_set = attributes.is_attr_set(segmentation_id) if not (network_type_set or physical_network_set or segmentation_id_set): return (None, None, None) if not network_type_set: msg = _("provider:network_type required") raise n_exc.InvalidInput(error_message=msg) elif network_type == c_const.NETWORK_TYPE_VLAN: if not segmentation_id_set: msg = _("provider:segmentation_id required") raise n_exc.InvalidInput(error_message=msg) if segmentation_id < 1 or segmentation_id > 4094: msg = _("provider:segmentation_id out of range " "(1 through 4094)") raise n_exc.InvalidInput(error_message=msg) elif network_type == c_const.NETWORK_TYPE_OVERLAY: if physical_network_set: msg = _("provider:physical_network specified for Overlay " "network") raise n_exc.InvalidInput(error_message=msg) else: physical_network = None if not segmentation_id_set: msg = _("provider:segmentation_id required") raise n_exc.InvalidInput(error_message=msg) if segmentation_id < 5000: msg = _("provider:segmentation_id out of range " "(5000+)") raise n_exc.InvalidInput(error_message=msg) else: msg = _("provider:network_type %s not supported"), network_type raise n_exc.InvalidInput(error_message=msg) if network_type == c_const.NETWORK_TYPE_VLAN: if physical_network_set: network_profiles = n1kv_db_v2.get_network_profiles() for network_profile in network_profiles: if physical_network == network_profile[ 'physical_network']: break else: msg = (_("Unknown provider:physical_network %s"), physical_network) raise n_exc.InvalidInput(error_message=msg) else: msg = _("provider:physical_network required") raise n_exc.InvalidInput(error_message=msg) return (network_type, physical_network, segmentation_id)
**** CubicPower OpenStack Study **** def _check_provider_update(self, context, attrs): """Handle Provider network updates.""" network_type = attrs.get(providernet.NETWORK_TYPE) physical_network = attrs.get(providernet.PHYSICAL_NETWORK) segmentation_id = attrs.get(providernet.SEGMENTATION_ID) network_type_set = attributes.is_attr_set(network_type) physical_network_set = attributes.is_attr_set(physical_network) segmentation_id_set = attributes.is_attr_set(segmentation_id) if not (network_type_set or physical_network_set or segmentation_id_set): return # TBD : Need to handle provider network updates msg = _("Plugin does not support updating provider attributes") raise n_exc.InvalidInput(error_message=msg)
**** CubicPower OpenStack Study **** def _get_cluster(self, segment1, segment2, clusters): """ Returns a cluster to apply the segment mapping :param segment1: UUID of segment to be mapped :param segment2: UUID of segment to be mapped :param clusters: List of clusters """ for cluster in sorted(clusters, key=lambda k: k['size']): for mapping in cluster[c_const.MAPPINGS]: for segment in mapping[c_const.SEGMENTS]: if segment1 in segment or segment2 in segment: break else: cluster['size'] += 2 return cluster['encapProfileName'] break return
**** CubicPower OpenStack Study **** def _extend_mapping_dict(self, context, mapping_dict, segment): """ Extend a mapping dictionary with dot1q tag and bridge-domain name. :param context: neutron api request context :param mapping_dict: dictionary to populate values :param segment: id of the segment being populated """ net = self.get_network(context, segment) if net[providernet.NETWORK_TYPE] == c_const.NETWORK_TYPE_VLAN: mapping_dict['dot1q'] = str(net[providernet.SEGMENTATION_ID]) else: mapping_dict['bridgeDomain'] = (net['name'] + c_const.BRIDGE_DOMAIN_SUFFIX)
**** CubicPower OpenStack Study **** def _send_add_multi_segment_request(self, context, net_id, segment_pairs): """ Send Add multi-segment network request to VSM. :param context: neutron api request context :param net_id: UUID of the multi-segment network :param segment_pairs: List of segments in UUID pairs that need to be bridged """ if not segment_pairs: return session = context.session n1kvclient = n1kv_client.Client() clusters = n1kvclient.get_clusters() online_clusters = [] encap_dict = {} for cluster in clusters['body'][c_const.SET]: cluster = cluster[c_const.PROPERTIES] if cluster[c_const.STATE] == c_const.ONLINE: cluster['size'] = 0 for mapping in cluster[c_const.MAPPINGS]: cluster['size'] += ( len(mapping[c_const.SEGMENTS])) online_clusters.append(cluster) for (segment1, segment2) in segment_pairs: encap_profile = self._get_cluster(segment1, segment2, online_clusters) if encap_profile is not None: if encap_profile in encap_dict: profile_dict = encap_dict[encap_profile] else: profile_dict = {'name': encap_profile, 'addMappings': [], 'delMappings': []} encap_dict[encap_profile] = profile_dict mapping_dict = {} self._extend_mapping_dict(context, mapping_dict, segment1) self._extend_mapping_dict(context, mapping_dict, segment2) profile_dict['addMappings'].append(mapping_dict) n1kv_db_v2.add_multi_segment_encap_profile_name(session, net_id, (segment1, segment2), encap_profile) else: raise cisco_exceptions.NoClusterFound for profile in encap_dict: n1kvclient.update_encapsulation_profile(context, profile, encap_dict[profile])
**** CubicPower OpenStack Study **** def _send_del_multi_segment_request(self, context, net_id, segment_pairs): """ Send Delete multi-segment network request to VSM. :param context: neutron api request context :param net_id: UUID of the multi-segment network :param segment_pairs: List of segments in UUID pairs whose bridging needs to be removed """ if not segment_pairs: return session = context.session encap_dict = {} n1kvclient = n1kv_client.Client() for (segment1, segment2) in segment_pairs: binding = ( n1kv_db_v2.get_multi_segment_network_binding(session, net_id, (segment1, segment2))) encap_profile = binding['encap_profile_name'] if encap_profile in encap_dict: profile_dict = encap_dict[encap_profile] else: profile_dict = {'name': encap_profile, 'addMappings': [], 'delMappings': []} encap_dict[encap_profile] = profile_dict mapping_dict = {} self._extend_mapping_dict(context, mapping_dict, segment1) self._extend_mapping_dict(context, mapping_dict, segment2) profile_dict['delMappings'].append(mapping_dict) for profile in encap_dict: n1kvclient.update_encapsulation_profile(context, profile, encap_dict[profile])
**** CubicPower OpenStack Study **** def _get_encap_segments(self, context, segment_pairs): """ Get the list of segments in encapsulation profile format. :param context: neutron api request context :param segment_pairs: List of segments that need to be bridged """ member_list = [] for pair in segment_pairs: (segment, dot1qtag) = pair member_dict = {} net = self.get_network(context, segment) member_dict['bridgeDomain'] = (net['name'] + c_const.BRIDGE_DOMAIN_SUFFIX) member_dict['dot1q'] = dot1qtag member_list.append(member_dict) return member_list
**** CubicPower OpenStack Study **** def _populate_member_segments(self, context, network, segment_pairs, oper): """ Populate trunk network dict with member segments. :param context: neutron api request context :param network: Dictionary containing the trunk network information :param segment_pairs: List of segments in UUID pairs that needs to be trunked :param oper: Operation to be performed """ LOG.debug(_('_populate_member_segments %s'), segment_pairs) trunk_list = [] for (segment, dot1qtag) in segment_pairs: net = self.get_network(context, segment) member_dict = {'segment': net['name'], 'dot1qtag': dot1qtag} trunk_list.append(member_dict) if oper == n1kv.SEGMENT_ADD: network['add_segment_list'] = trunk_list elif oper == n1kv.SEGMENT_DEL: network['del_segment_list'] = trunk_list
**** CubicPower OpenStack Study **** def _parse_multi_segments(self, context, attrs, param): """ Parse the multi-segment network attributes. :param context: neutron api request context :param attrs: Attributes of the network :param param: Additional parameter indicating an add or del operation :returns: List of segment UUIDs in set pairs """ pair_list = [] valid_seg_types = [c_const.NETWORK_TYPE_VLAN, c_const.NETWORK_TYPE_OVERLAY] segments = attrs.get(param) if not attributes.is_attr_set(segments): return pair_list for pair in segments.split(','): segment1, sep, segment2 = pair.partition(':') if (uuidutils.is_uuid_like(segment1) and uuidutils.is_uuid_like(segment2)): binding1 = n1kv_db_v2.get_network_binding(context.session, segment1) binding2 = n1kv_db_v2.get_network_binding(context.session, segment2) if (binding1.network_type not in valid_seg_types or binding2.network_type not in valid_seg_types or binding1.network_type == binding2.network_type): msg = _("Invalid pairing supplied") raise n_exc.InvalidInput(error_message=msg) else: pair_list.append((segment1, segment2)) else: LOG.debug(_('Invalid UUID supplied in %s'), pair) msg = _("Invalid UUID supplied") raise n_exc.InvalidInput(error_message=msg) return pair_list
**** CubicPower OpenStack Study **** def _parse_trunk_segments(self, context, attrs, param, physical_network, sub_type): """ Parse the trunk network attributes. :param context: neutron api request context :param attrs: Attributes of the network :param param: Additional parameter indicating an add or del operation :param physical_network: Physical network of the trunk segment :param sub_type: Sub-type of the trunk segment :returns: List of segment UUIDs and dot1qtag (for vxlan) in set pairs """ pair_list = [] segments = attrs.get(param) if not attributes.is_attr_set(segments): return pair_list for pair in segments.split(','): segment, sep, dot1qtag = pair.partition(':') if sub_type == c_const.NETWORK_TYPE_VLAN: dot1qtag = '' if uuidutils.is_uuid_like(segment): binding = n1kv_db_v2.get_network_binding(context.session, segment) if binding.network_type == c_const.NETWORK_TYPE_TRUNK: msg = _("Cannot add a trunk segment '%s' as a member of " "another trunk segment") % segment raise n_exc.InvalidInput(error_message=msg) elif binding.network_type == c_const.NETWORK_TYPE_VLAN: if sub_type == c_const.NETWORK_TYPE_OVERLAY: msg = _("Cannot add vlan segment '%s' as a member of " "a vxlan trunk segment") % segment raise n_exc.InvalidInput(error_message=msg) if not physical_network: physical_network = binding.physical_network elif physical_network != binding.physical_network: msg = _("Network UUID '%s' belongs to a different " "physical network") % segment raise n_exc.InvalidInput(error_message=msg) elif binding.network_type == c_const.NETWORK_TYPE_OVERLAY: if sub_type == c_const.NETWORK_TYPE_VLAN: msg = _("Cannot add vxlan segment '%s' as a member of " "a vlan trunk segment") % segment raise n_exc.InvalidInput(error_message=msg) try: if not utils.is_valid_vlan_tag(int(dot1qtag)): msg = _("Vlan tag '%s' is out of range") % dot1qtag raise n_exc.InvalidInput(error_message=msg) except ValueError: msg = _("Vlan tag '%s' is not an integer " "value") % dot1qtag raise n_exc.InvalidInput(error_message=msg) pair_list.append((segment, dot1qtag)) else: LOG.debug(_('%s is not a valid uuid'), segment) msg = _("'%s' is not a valid UUID") % segment raise n_exc.InvalidInput(error_message=msg) return pair_list
**** CubicPower OpenStack Study **** def _extend_network_dict_member_segments(self, context, network): """Add the extended parameter member segments to the network.""" members = [] binding = n1kv_db_v2.get_network_binding(context.session, network['id']) if binding.network_type == c_const.NETWORK_TYPE_TRUNK: members = n1kv_db_v2.get_trunk_members(context.session, network['id']) elif binding.network_type == c_const.NETWORK_TYPE_MULTI_SEGMENT: members = n1kv_db_v2.get_multi_segment_members(context.session, network['id']) network[n1kv.MEMBER_SEGMENTS] = members
**** CubicPower OpenStack Study **** def _extend_network_dict_profile(self, context, network): """Add the extended parameter network profile to the network.""" binding = n1kv_db_v2.get_network_binding(context.session, network['id']) network[n1kv.PROFILE_ID] = binding.profile_id
**** CubicPower OpenStack Study **** def _extend_port_dict_profile(self, context, port): """Add the extended parameter port profile to the port.""" binding = n1kv_db_v2.get_port_binding(context.session, port['id']) port[n1kv.PROFILE_ID] = binding.profile_id
**** CubicPower OpenStack Study **** def _process_network_profile(self, context, network): """Validate network profile exists.""" profile_id = network.get(n1kv.PROFILE_ID) profile_id_set = attributes.is_attr_set(profile_id) if not profile_id_set: profile_name = c_conf.CISCO_N1K.default_network_profile net_p = self._get_network_profile_by_name(context.session, profile_name) profile_id = net_p['id'] network['n1kv:profile_id'] = profile_id return profile_id
**** CubicPower OpenStack Study **** def _process_policy_profile(self, context, attrs): """Validates whether policy profile exists.""" profile_id = attrs.get(n1kv.PROFILE_ID) profile_id_set = attributes.is_attr_set(profile_id) if not profile_id_set: msg = _("n1kv:profile_id does not exist") raise n_exc.InvalidInput(error_message=msg) if not self._policy_profile_exists(profile_id): msg = _("n1kv:profile_id does not exist") raise n_exc.InvalidInput(error_message=msg) return profile_id
**** CubicPower OpenStack Study **** def _send_create_logical_network_request(self, network_profile, tenant_id): """ Send create logical network request to VSM. :param network_profile: network profile dictionary :param tenant_id: UUID representing the tenant """ LOG.debug(_('_send_create_logical_network')) n1kvclient = n1kv_client.Client() n1kvclient.create_logical_network(network_profile, tenant_id)
**** CubicPower OpenStack Study **** def _send_delete_logical_network_request(self, network_profile): """ Send delete logical network request to VSM. :param network_profile: network profile dictionary """ LOG.debug('_send_delete_logical_network') n1kvclient = n1kv_client.Client() logical_network_name = (network_profile['id'] + c_const.LOGICAL_NETWORK_SUFFIX) n1kvclient.delete_logical_network(logical_network_name)
**** CubicPower OpenStack Study **** def _send_create_network_profile_request(self, context, profile): """ Send create network profile request to VSM. :param context: neutron api request context :param profile: network profile dictionary """ LOG.debug(_('_send_create_network_profile_request: %s'), profile['id']) n1kvclient = n1kv_client.Client() n1kvclient.create_network_segment_pool(profile, context.tenant_id)
**** CubicPower OpenStack Study **** def _send_update_network_profile_request(self, profile): """ Send update network profile request to VSM. :param profile: network profile dictionary """ LOG.debug(_('_send_update_network_profile_request: %s'), profile['id']) n1kvclient = n1kv_client.Client() n1kvclient.update_network_segment_pool(profile)
**** CubicPower OpenStack Study **** def _send_delete_network_profile_request(self, profile): """ Send delete network profile request to VSM. :param profile: network profile dictionary """ LOG.debug(_('_send_delete_network_profile_request: %s'), profile['name']) n1kvclient = n1kv_client.Client() n1kvclient.delete_network_segment_pool(profile['id'])
**** CubicPower OpenStack Study **** def _send_create_network_request(self, context, network, segment_pairs): """ Send create network request to VSM. Create a bridge domain for network of type Overlay. :param context: neutron api request context :param network: network dictionary :param segment_pairs: List of segments in UUID pairs that need to be bridged """ LOG.debug(_('_send_create_network_request: %s'), network['id']) profile = self.get_network_profile(context, network[n1kv.PROFILE_ID]) n1kvclient = n1kv_client.Client() if network[providernet.NETWORK_TYPE] == c_const.NETWORK_TYPE_OVERLAY: n1kvclient.create_bridge_domain(network, profile['sub_type']) if network[providernet.NETWORK_TYPE] == c_const.NETWORK_TYPE_TRUNK: self._populate_member_segments(context, network, segment_pairs, n1kv.SEGMENT_ADD) network['del_segment_list'] = [] if profile['sub_type'] == c_const.NETWORK_TYPE_OVERLAY: encap_dict = {'name': (network['name'] + c_const.ENCAPSULATION_PROFILE_SUFFIX), 'add_segment_list': ( self._get_encap_segments(context, segment_pairs)), 'del_segment_list': []} n1kvclient.create_encapsulation_profile(encap_dict) n1kvclient.create_network_segment(network, profile)
**** CubicPower OpenStack Study **** def _send_update_network_request(self, context, network, add_segments, del_segments): """ Send update network request to VSM. :param context: neutron api request context :param network: network dictionary :param add_segments: List of segments bindings that need to be deleted :param del_segments: List of segments bindings that need to be deleted """ LOG.debug(_('_send_update_network_request: %s'), network['id']) db_session = context.session profile = n1kv_db_v2.get_network_profile( db_session, network[n1kv.PROFILE_ID]) n1kvclient = n1kv_client.Client() body = {'description': network['name'], 'id': network['id'], 'networkSegmentPool': profile['id'], 'vlan': network[providernet.SEGMENTATION_ID], 'mode': 'access', 'segmentType': profile['segment_type'], 'addSegments': [], 'delSegments': []} if network[providernet.NETWORK_TYPE] == c_const.NETWORK_TYPE_TRUNK: self._populate_member_segments(context, network, add_segments, n1kv.SEGMENT_ADD) self._populate_member_segments(context, network, del_segments, n1kv.SEGMENT_DEL) body['mode'] = c_const.NETWORK_TYPE_TRUNK body['segmentType'] = profile['sub_type'] body['addSegments'] = network['add_segment_list'] body['delSegments'] = network['del_segment_list'] LOG.debug(_('add_segments=%s'), body['addSegments']) LOG.debug(_('del_segments=%s'), body['delSegments']) if profile['sub_type'] == c_const.NETWORK_TYPE_OVERLAY: encap_profile = (network['id'] + c_const.ENCAPSULATION_PROFILE_SUFFIX) encap_dict = {'name': encap_profile, 'addMappings': ( self._get_encap_segments(context, add_segments)), 'delMappings': ( self._get_encap_segments(context, del_segments))} n1kvclient.update_encapsulation_profile(context, encap_profile, encap_dict) n1kvclient.update_network_segment(network['id'], body)
**** CubicPower OpenStack Study **** def _send_delete_network_request(self, context, network): """ Send delete network request to VSM. Delete bridge domain if network is of type Overlay. Delete encapsulation profile if network is of type OVERLAY Trunk. :param context: neutron api request context :param network: network dictionary """ LOG.debug(_('_send_delete_network_request: %s'), network['id']) n1kvclient = n1kv_client.Client() session = context.session if network[providernet.NETWORK_TYPE] == c_const.NETWORK_TYPE_OVERLAY: name = network['id'] + c_const.BRIDGE_DOMAIN_SUFFIX n1kvclient.delete_bridge_domain(name) elif network[providernet.NETWORK_TYPE] == c_const.NETWORK_TYPE_TRUNK: profile = self.get_network_profile( context, network[n1kv.PROFILE_ID]) if profile['sub_type'] == c_const.NETWORK_TYPE_OVERLAY: profile_name = (network['id'] + c_const.ENCAPSULATION_PROFILE_SUFFIX) n1kvclient.delete_encapsulation_profile(profile_name) elif (network[providernet.NETWORK_TYPE] == c_const.NETWORK_TYPE_MULTI_SEGMENT): encap_dict = n1kv_db_v2.get_multi_segment_encap_dict(session, network['id']) for profile in encap_dict: profile_dict = {'name': profile, 'addSegments': [], 'delSegments': []} for segment_pair in encap_dict[profile]: mapping_dict = {} (segment1, segment2) = segment_pair self._extend_mapping_dict(context, mapping_dict, segment1) self._extend_mapping_dict(context, mapping_dict, segment2) profile_dict['delSegments'].append(mapping_dict) n1kvclient.update_encapsulation_profile(context, profile, profile_dict) n1kvclient.delete_network_segment(network['id'])
**** CubicPower OpenStack Study **** def _send_create_subnet_request(self, context, subnet): """ Send create subnet request to VSM. :param context: neutron api request context :param subnet: subnet dictionary """ LOG.debug(_('_send_create_subnet_request: %s'), subnet['id']) n1kvclient = n1kv_client.Client() n1kvclient.create_ip_pool(subnet)
**** CubicPower OpenStack Study **** def _send_update_subnet_request(self, subnet): """ Send update subnet request to VSM. :param subnet: subnet dictionary """ LOG.debug(_('_send_update_subnet_request: %s'), subnet['name']) n1kvclient = n1kv_client.Client() n1kvclient.update_ip_pool(subnet)
**** CubicPower OpenStack Study **** def _send_delete_subnet_request(self, context, subnet): """ Send delete subnet request to VSM. :param context: neutron api request context :param subnet: subnet dictionary """ LOG.debug(_('_send_delete_subnet_request: %s'), subnet['name']) body = {'ipPool': subnet['id'], 'deleteSubnet': True} n1kvclient = n1kv_client.Client() n1kvclient.update_network_segment(subnet['network_id'], body=body) n1kvclient.delete_ip_pool(subnet['id'])
**** CubicPower OpenStack Study **** def _send_create_port_request(self, context, port): """ Send create port request to VSM. Create a VM network for a network and policy profile combination. If the VM network already exists, bind this port to the existing VM network and increment its port count. :param context: neutron api request context :param port: port dictionary """ LOG.debug(_('_send_create_port_request: %s'), port) try: vm_network = n1kv_db_v2.get_vm_network( context.session, port[n1kv.PROFILE_ID], port['network_id']) except cisco_exceptions.VMNetworkNotFound: policy_profile = n1kv_db_v2.get_policy_profile( context.session, port[n1kv.PROFILE_ID]) vm_network_name = (c_const.VM_NETWORK_NAME_PREFIX + str(port[n1kv.PROFILE_ID]) + "_" + str(port['network_id'])) port_count = 1 n1kv_db_v2.add_vm_network(context.session, vm_network_name, port[n1kv.PROFILE_ID], port['network_id'], port_count) n1kvclient = n1kv_client.Client() n1kvclient.create_vm_network(port, vm_network_name, policy_profile) else: vm_network_name = vm_network['name'] n1kvclient = n1kv_client.Client() n1kvclient.create_n1kv_port(port, vm_network_name) vm_network['port_count'] += 1 n1kv_db_v2.update_vm_network_port_count( context.session, vm_network_name, vm_network['port_count'])
**** CubicPower OpenStack Study **** def _send_update_port_request(self, port_id, mac_address, vm_network_name): """ Send update port request to VSM. :param port_id: UUID representing port to update :param mac_address: string representing the mac address :param vm_network_name: VM network name to which the port is bound """ LOG.debug(_('_send_update_port_request: %s'), port_id) body = {'portId': port_id, 'macAddress': mac_address} n1kvclient = n1kv_client.Client() n1kvclient.update_n1kv_port(vm_network_name, port_id, body)
**** CubicPower OpenStack Study **** def _send_delete_port_request(self, context, id): """ Send delete port request to VSM. Decrement the port count of the VM network after deleting the port. If the port count reaches zero, delete the VM network. :param context: neutron api request context :param id: UUID of the port to be deleted """ LOG.debug(_('_send_delete_port_request: %s'), id) port = self.get_port(context, id) vm_network = n1kv_db_v2.get_vm_network(context.session, port[n1kv.PROFILE_ID], port['network_id']) vm_network['port_count'] -= 1 n1kv_db_v2.update_vm_network_port_count( context.session, vm_network['name'], vm_network['port_count']) n1kvclient = n1kv_client.Client() n1kvclient.delete_n1kv_port(vm_network['name'], id) if vm_network['port_count'] == 0: n1kv_db_v2.delete_vm_network(context.session, port[n1kv.PROFILE_ID], port['network_id']) n1kvclient.delete_vm_network(vm_network['name'])
**** CubicPower OpenStack Study **** def _get_segmentation_id(self, context, id): """ Retrieve segmentation ID for a given network. :param context: neutron api request context :param id: UUID of the network :returns: segmentation ID for the network """ session = context.session binding = n1kv_db_v2.get_network_binding(session, id) return binding.segmentation_id
**** CubicPower OpenStack Study **** def create_network(self, context, network): """ Create network based on network profile. :param context: neutron api request context :param network: network dictionary :returns: network object """ (network_type, physical_network, segmentation_id) = self._process_provider_create(context, network['network']) profile_id = self._process_network_profile(context, network['network']) segment_pairs = None LOG.debug(_('Create network: profile_id=%s'), profile_id) session = context.session with session.begin(subtransactions=True): if not network_type: # tenant network (physical_network, network_type, segmentation_id, multicast_ip) = n1kv_db_v2.alloc_network(session, profile_id) LOG.debug(_('Physical_network %(phy_net)s, ' 'seg_type %(net_type)s, ' 'seg_id %(seg_id)s, ' 'multicast_ip %(multicast_ip)s'), {'phy_net': physical_network, 'net_type': network_type, 'seg_id': segmentation_id, 'multicast_ip': multicast_ip}) if network_type == c_const.NETWORK_TYPE_MULTI_SEGMENT: segment_pairs = ( self._parse_multi_segments(context, network['network'], n1kv.SEGMENT_ADD)) LOG.debug(_('Seg list %s '), segment_pairs) elif network_type == c_const.NETWORK_TYPE_TRUNK: network_profile = self.get_network_profile(context, profile_id) segment_pairs = ( self._parse_trunk_segments(context, network['network'], n1kv.SEGMENT_ADD, physical_network, network_profile['sub_type'] )) LOG.debug(_('Seg list %s '), segment_pairs) else: if not segmentation_id: raise n_exc.TenantNetworksDisabled() else: # provider network if network_type == c_const.NETWORK_TYPE_VLAN: network_profile = self.get_network_profile(context, profile_id) seg_min, seg_max = self._get_segment_range( network_profile['segment_range']) if not seg_min <= segmentation_id <= seg_max: raise cisco_exceptions.VlanIDOutsidePool n1kv_db_v2.reserve_specific_vlan(session, physical_network, segmentation_id) multicast_ip = "0.0.0.0" net = super(N1kvNeutronPluginV2, self).create_network(context, network) n1kv_db_v2.add_network_binding(session, net['id'], network_type, physical_network, segmentation_id, multicast_ip, profile_id, segment_pairs) self._process_l3_create(context, net, network['network']) self._extend_network_dict_provider(context, net) self._extend_network_dict_profile(context, net) try: if network_type == c_const.NETWORK_TYPE_MULTI_SEGMENT: self._send_add_multi_segment_request(context, net['id'], segment_pairs) else: self._send_create_network_request(context, net, segment_pairs) # note - exception will rollback entire transaction except(cisco_exceptions.VSMError, cisco_exceptions.VSMConnectionFailed): super(N1kvNeutronPluginV2, self).delete_network(context, net['id']) else: # note - exception will rollback entire transaction LOG.debug(_("Created network: %s"), net['id']) return net
**** CubicPower OpenStack Study **** def update_network(self, context, id, network): """ Update network parameters. :param context: neutron api request context :param id: UUID representing the network to update :returns: updated network object """ self._check_provider_update(context, network['network']) add_segments = [] del_segments = [] session = context.session with session.begin(subtransactions=True): net = super(N1kvNeutronPluginV2, self).update_network(context, id, network) self._process_l3_update(context, net, network['network']) binding = n1kv_db_v2.get_network_binding(session, id) if binding.network_type == c_const.NETWORK_TYPE_MULTI_SEGMENT: add_segments = ( self._parse_multi_segments(context, network['network'], n1kv.SEGMENT_ADD)) n1kv_db_v2.add_multi_segment_binding(session, net['id'], add_segments) del_segments = ( self._parse_multi_segments(context, network['network'], n1kv.SEGMENT_DEL)) self._send_add_multi_segment_request(context, net['id'], add_segments) self._send_del_multi_segment_request(context, net['id'], del_segments) n1kv_db_v2.del_multi_segment_binding(session, net['id'], del_segments) elif binding.network_type == c_const.NETWORK_TYPE_TRUNK: network_profile = self.get_network_profile(context, binding.profile_id) add_segments = ( self._parse_trunk_segments(context, network['network'], n1kv.SEGMENT_ADD, binding.physical_network, network_profile['sub_type'])) n1kv_db_v2.add_trunk_segment_binding(session, net['id'], add_segments) del_segments = ( self._parse_trunk_segments(context, network['network'], n1kv.SEGMENT_DEL, binding.physical_network, network_profile['sub_type'])) n1kv_db_v2.del_trunk_segment_binding(session, net['id'], del_segments) self._extend_network_dict_provider(context, net) self._extend_network_dict_profile(context, net) if binding.network_type != c_const.NETWORK_TYPE_MULTI_SEGMENT: self._send_update_network_request(context, net, add_segments, del_segments) LOG.debug(_("Updated network: %s"), net['id']) return net
**** CubicPower OpenStack Study **** def delete_network(self, context, id): """ Delete a network. :param context: neutron api request context :param id: UUID representing the network to delete """ session = context.session with session.begin(subtransactions=True): binding = n1kv_db_v2.get_network_binding(session, id) network = self.get_network(context, id) if n1kv_db_v2.is_trunk_member(session, id): msg = _("Cannot delete network '%s' " "that is member of a trunk segment") % network['name'] raise n_exc.InvalidInput(error_message=msg) if n1kv_db_v2.is_multi_segment_member(session, id): msg = _("Cannot delete network '%s' that is a member of a " "multi-segment network") % network['name'] raise n_exc.InvalidInput(error_message=msg) if binding.network_type == c_const.NETWORK_TYPE_OVERLAY: n1kv_db_v2.release_vxlan(session, binding.segmentation_id) elif binding.network_type == c_const.NETWORK_TYPE_VLAN: n1kv_db_v2.release_vlan(session, binding.physical_network, binding.segmentation_id) # the network_binding record is deleted via cascade from # the network record, so explicit removal is not necessary self._send_delete_network_request(context, network) super(N1kvNeutronPluginV2, self).delete_network(context, id) LOG.debug(_("Deleted network: %s"), id)
**** CubicPower OpenStack Study **** def get_network(self, context, id, fields=None): """ Retrieve a Network. :param context: neutron api request context :param id: UUID representing the network to fetch :returns: requested network dictionary """ LOG.debug(_("Get network: %s"), id) net = super(N1kvNeutronPluginV2, self).get_network(context, id, None) self._extend_network_dict_provider(context, net) self._extend_network_dict_profile(context, net) self._extend_network_dict_member_segments(context, net) return self._fields(net, fields)
**** CubicPower OpenStack Study **** def get_networks(self, context, filters=None, fields=None): """ Retrieve a list of networks. :param context: neutron api request context :param filters: a dictionary with keys that are valid keys for a network object. Values in this dictiontary are an iterable containing values that will be used for an exact match comparison for that value. Each result returned by this function will have matched one of the values for each key in filters :params fields: a list of strings that are valid keys in a network dictionary. Only these fields will be returned. :returns: list of network dictionaries. """ LOG.debug(_("Get networks")) nets = super(N1kvNeutronPluginV2, self).get_networks(context, filters, None) for net in nets: self._extend_network_dict_provider(context, net) self._extend_network_dict_profile(context, net) return [self._fields(net, fields) for net in nets]
**** CubicPower OpenStack Study **** def create_port(self, context, port): """ Create neutron port. Create a port. Use a default policy profile for ports created for dhcp and router interface. Default policy profile name is configured in the /etc/neutron/cisco_plugins.ini file. :param context: neutron api request context :param port: port dictionary :returns: port object """ if ('device_id' in port['port'] and port['port']['device_owner'] in [constants.DEVICE_OWNER_DHCP, constants.DEVICE_OWNER_ROUTER_INTF]): p_profile_name = c_conf.CISCO_N1K.network_node_policy_profile p_profile = self._get_policy_profile_by_name(p_profile_name) if p_profile: port['port']['n1kv:profile_id'] = p_profile['id'] profile_id_set = False if n1kv.PROFILE_ID in port['port']: profile_id = port['port'].get(n1kv.PROFILE_ID) profile_id_set = attributes.is_attr_set(profile_id) if not profile_id_set: p_profile_name = c_conf.CISCO_N1K.default_policy_profile p_profile = self._get_policy_profile_by_name(p_profile_name) if p_profile: port['port']['n1kv:profile_id'] = p_profile['id'] profile_id_set = True if profile_id_set: profile_id = self._process_policy_profile(context, port['port']) LOG.debug(_('Create port: profile_id=%s'), profile_id) session = context.session with session.begin(subtransactions=True): pt = super(N1kvNeutronPluginV2, self).create_port(context, port) n1kv_db_v2.add_port_binding(session, pt['id'], profile_id) self._extend_port_dict_profile(context, pt) self._process_portbindings_create_and_update(context, port['port'], pt) try: self._send_create_port_request(context, pt) except(cisco_exceptions.VSMError, cisco_exceptions.VSMConnectionFailed): super(N1kvNeutronPluginV2, self).delete_port(context, pt['id']) else: LOG.debug(_("Created port: %s"), pt) return pt
**** CubicPower OpenStack Study **** def update_port(self, context, id, port): """ Update port parameters. :param context: neutron api request context :param id: UUID representing the port to update :returns: updated port object """ LOG.debug(_("Update port: %s"), id) with context.session.begin(subtransactions=True): updated_port = super(N1kvNeutronPluginV2, self).update_port(context, id, port) self._process_portbindings_create_and_update(context, port['port'], updated_port) self._extend_port_dict_profile(context, updated_port) return updated_port
**** CubicPower OpenStack Study **** def delete_port(self, context, id, l3_port_check=True): """ Delete a port. :param context: neutron api request context :param id: UUID representing the port to delete """ # if needed, check to see if this is a port owned by # and l3-router. If so, we should prevent deletion. if l3_port_check: self.prevent_l3_port_deletion(context, id) with context.session.begin(subtransactions=True): self.disassociate_floatingips(context, id) self._send_delete_port_request(context, id) super(N1kvNeutronPluginV2, self).delete_port(context, id)
**** CubicPower OpenStack Study **** def get_port(self, context, id, fields=None): """ Retrieve a port. :param context: neutron api request context :param id: UUID representing the port to retrieve :param fields: a list of strings that are valid keys in a port dictionary. Only these fields will be returned. :returns: port dictionary """ LOG.debug(_("Get port: %s"), id) port = super(N1kvNeutronPluginV2, self).get_port(context, id, None) self._extend_port_dict_profile(context, port) return self._fields(port, fields)
**** CubicPower OpenStack Study **** def get_ports(self, context, filters=None, fields=None): """ Retrieve a list of ports. :param context: neutron api request context :param filters: a dictionary with keys that are valid keys for a port object. Values in this dictiontary are an iterable containing values that will be used for an exact match comparison for that value. Each result returned by this function will have matched one of the values for each key in filters :params fields: a list of strings that are valid keys in a port dictionary. Only these fields will be returned. :returns: list of port dictionaries """ LOG.debug(_("Get ports")) ports = super(N1kvNeutronPluginV2, self).get_ports(context, filters, None) for port in ports: self._extend_port_dict_profile(context, port) return [self._fields(port, fields) for port in ports]
**** CubicPower OpenStack Study **** def create_subnet(self, context, subnet): """ Create subnet for a given network. :param context: neutron api request context :param subnet: subnet dictionary :returns: subnet object """ LOG.debug(_('Create subnet')) sub = super(N1kvNeutronPluginV2, self).create_subnet(context, subnet) try: self._send_create_subnet_request(context, sub) except(cisco_exceptions.VSMError, cisco_exceptions.VSMConnectionFailed): super(N1kvNeutronPluginV2, self).delete_subnet(context, sub['id']) else: LOG.debug(_("Created subnet: %s"), sub['id']) return sub
**** CubicPower OpenStack Study **** def update_subnet(self, context, id, subnet): """ Update a subnet. :param context: neutron api request context :param id: UUID representing subnet to update :returns: updated subnet object """ LOG.debug(_('Update subnet')) sub = super(N1kvNeutronPluginV2, self).update_subnet(context, id, subnet) self._send_update_subnet_request(sub) return sub
**** CubicPower OpenStack Study **** def delete_subnet(self, context, id): """ Delete a subnet. :param context: neutron api request context :param id: UUID representing subnet to delete :returns: deleted subnet object """ LOG.debug(_('Delete subnet: %s'), id) subnet = self.get_subnet(context, id) self._send_delete_subnet_request(context, subnet) return super(N1kvNeutronPluginV2, self).delete_subnet(context, id)
**** CubicPower OpenStack Study **** def get_subnet(self, context, id, fields=None): """ Retrieve a subnet. :param context: neutron api request context :param id: UUID representing subnet to retrieve :params fields: a list of strings that are valid keys in a subnet dictionary. Only these fields will be returned. :returns: subnet object """ LOG.debug(_("Get subnet: %s"), id) subnet = super(N1kvNeutronPluginV2, self).get_subnet(context, id, None) return self._fields(subnet, fields)
**** CubicPower OpenStack Study **** def get_subnets(self, context, filters=None, fields=None): """ Retrieve a list of subnets. :param context: neutron api request context :param filters: a dictionary with keys that are valid keys for a subnet object. Values in this dictiontary are an iterable containing values that will be used for an exact match comparison for that value. Each result returned by this function will have matched one of the values for each key in filters :params fields: a list of strings that are valid keys in a subnet dictionary. Only these fields will be returned. :returns: list of dictionaries of subnets """ LOG.debug(_("Get subnets")) subnets = super(N1kvNeutronPluginV2, self).get_subnets(context, filters, None) return [self._fields(subnet, fields) for subnet in subnets]
**** CubicPower OpenStack Study **** def create_network_profile(self, context, network_profile): """ Create a network profile. Create a network profile, which represents a pool of networks belonging to one type (VLAN or Overlay). On creation of network profile, we retrieve the admin tenant-id which we use to replace the previously stored fake tenant-id in tenant-profile bindings. :param context: neutron api request context :param network_profile: network profile dictionary :returns: network profile object """ self._replace_fake_tenant_id_with_real(context) with context.session.begin(subtransactions=True): net_p = super(N1kvNeutronPluginV2, self).create_network_profile(context, network_profile) try: self._send_create_logical_network_request(net_p, context.tenant_id) except(cisco_exceptions.VSMError, cisco_exceptions.VSMConnectionFailed): n1kv_db_v2.delete_profile_binding(context.session, context.tenant_id, net_p['id']) try: self._send_create_network_profile_request(context, net_p) except(cisco_exceptions.VSMError, cisco_exceptions.VSMConnectionFailed): n1kv_db_v2.delete_profile_binding(context.session, context.tenant_id, net_p['id']) self._send_delete_logical_network_request(net_p) return net_p
**** CubicPower OpenStack Study **** def delete_network_profile(self, context, id): """ Delete a network profile. :param context: neutron api request context :param id: UUID of the network profile to delete :returns: deleted network profile object """ with context.session.begin(subtransactions=True): net_p = super(N1kvNeutronPluginV2, self).delete_network_profile(context, id) self._send_delete_network_profile_request(net_p) self._send_delete_logical_network_request(net_p)
**** CubicPower OpenStack Study **** def update_network_profile(self, context, net_profile_id, network_profile): """ Update a network profile. :param context: neutron api request context :param net_profile_id: UUID of the network profile to update :param network_profile: dictionary containing network profile object """ session = context.session with session.begin(subtransactions=True): net_p = (super(N1kvNeutronPluginV2, self). update_network_profile(context, net_profile_id, network_profile)) self._send_update_network_profile_request(net_p) return net_p
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