# Copyright 2012 Big Switch Networks, Inc. # All Rights Reserved. # # 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: Mandeep Dhami, Big Switch Networks, Inc. # @author: Sumit Naiksatam, sumitnaiksatam@gmail.com, Big Switch Networks, Inc. """ Neutron REST Proxy Plug-in for Big Switch and FloodLight Controllers. NeutronRestProxy provides a generic neutron plugin that translates all plugin function calls to equivalent authenticated REST calls to a set of redundant external network controllers. It also keeps persistent store for all neutron state to allow for re-sync of the external controller(s), if required. The local state on the plugin also allows for local response and fast-fail semantics where it can be determined based on the local persistent store. Network controller specific code is decoupled from this plugin and expected to reside on the controller itself (via the REST interface). This allows for: - independent authentication and redundancy schemes between neutron and the network controller - independent upgrade/development cycles between neutron and the controller as it limits the proxy code upgrade requirement to neutron release cycle and the controller specific code upgrade requirement to controller code - ability to sync the controller with neutron for independent recovery/reset External REST API used by proxy is the same API as defined for neutron (JSON subset) with some additional parameters (gateway on network-create and macaddr on port-attach) on an additional PUT to do a bulk dump of all persistent data. """ import copy import functools import httplib import re import eventlet from oslo.config import cfg from sqlalchemy.orm import exc as sqlexc from neutron.agent import securitygroups_rpc as sg_rpc from neutron.api import extensions as neutron_extensions from neutron.api.rpc.agentnotifiers import dhcp_rpc_agent_api from neutron.api.rpc.handlers import dhcp_rpc from neutron.api.rpc.handlers import securitygroups_rpc from neutron.common import constants as const from neutron.common import exceptions from neutron.common import rpc as n_rpc from neutron.common import topics from neutron.common import utils from neutron import context as qcontext from neutron.db import agents_db from neutron.db import agentschedulers_db from neutron.db import allowedaddresspairs_db as addr_pair_db from neutron.db import api as db from neutron.db import db_base_plugin_v2 from neutron.db import external_net_db from neutron.db import extradhcpopt_db from neutron.db import l3_db from neutron.db import models_v2 from neutron.db import securitygroups_db as sg_db from neutron.db import securitygroups_rpc_base as sg_db_rpc from neutron.extensions import allowedaddresspairs as addr_pair from neutron.extensions import external_net from neutron.extensions import extra_dhcp_opt as edo_ext from neutron.extensions import portbindings from neutron import manager from neutron.openstack.common import importutils from neutron.openstack.common import log as logging from neutron.plugins.bigswitch import config as pl_config from neutron.plugins.bigswitch.db import porttracker_db from neutron.plugins.bigswitch import extensions from neutron.plugins.bigswitch import servermanager from neutron.plugins.bigswitch import version from neutron.plugins.common import constants as pconst LOG = logging.getLogger(__name__) SYNTAX_ERROR_MESSAGE = _('Syntax error in server config file, aborting plugin') METADATA_SERVER_IP = '169.254.169.254' class AgentNotifierApi(n_rpc.RpcProxy, sg_rpc.SecurityGroupAgentRpcApiMixin): BASE_RPC_API_VERSION = '1.1' def __init__(self, topic): super(AgentNotifierApi, self).__init__( topic=topic, default_version=self.BASE_RPC_API_VERSION) self.topic_port_update = topics.get_topic_name( topic, topics.PORT, topics.UPDATE) def port_update(self, context, port): self.fanout_cast(context, self.make_msg('port_update', port=port), topic=self.topic_port_update) class SecurityGroupServerRpcMixin(sg_db_rpc.SecurityGroupServerRpcMixin): def get_port_from_device(self, device): port_id = re.sub(r"^tap", "", device) port = self.get_port_and_sgs(port_id) if port: port['device'] = device return port def get_port_and_sgs(self, port_id): """Get port from database with security group info.""" LOG.debug(_("get_port_and_sgs() called for port_id %s"), port_id) session = db.get_session() sg_binding_port = sg_db.SecurityGroupPortBinding.port_id with session.begin(subtransactions=True): query = session.query( models_v2.Port, sg_db.SecurityGroupPortBinding.security_group_id ) query = query.outerjoin(sg_db.SecurityGroupPortBinding, models_v2.Port.id == sg_binding_port) query = query.filter(models_v2.Port.id.startswith(port_id)) port_and_sgs = query.all() if not port_and_sgs: return port = port_and_sgs[0][0] plugin = manager.NeutronManager.get_plugin() port_dict = plugin._make_port_dict(port) port_dict['security_groups'] = [ sg_id for port_, sg_id in port_and_sgs if sg_id] port_dict['security_group_rules'] = [] port_dict['security_group_source_groups'] = [] port_dict['fixed_ips'] = [ip['ip_address'] for ip in port['fixed_ips']] return port_dict class NeutronRestProxyV2Base(db_base_plugin_v2.NeutronDbPluginV2, external_net_db.External_net_db_mixin): supported_extension_aliases = ["binding"] servers = None @property def l3_plugin(self): return manager.NeutronManager.get_service_plugins().get( pconst.L3_ROUTER_NAT) def _get_all_data(self, get_ports=True, get_floating_ips=True, get_routers=True): admin_context = qcontext.get_admin_context() networks = [] # this method is used by the ML2 driver so it can't directly invoke # the self.get_(ports|networks) methods plugin = manager.NeutronManager.get_plugin() all_networks = plugin.get_networks(admin_context) or [] for net in all_networks: mapped_network = self._get_mapped_network_with_subnets(net) flips_n_ports = mapped_network if get_floating_ips: flips_n_ports = self._get_network_with_floatingips( mapped_network) if get_ports: ports = [] net_filter = {'network_id': [net.get('id')]} net_ports = plugin.get_ports(admin_context, filters=net_filter) or [] for port in net_ports: mapped_port = self._map_state_and_status(port) mapped_port['attachment'] = { 'id': port.get('device_id'), 'mac': port.get('mac_address'), } mapped_port = self._extend_port_dict_binding(admin_context, mapped_port) ports.append(mapped_port) flips_n_ports['ports'] = ports if flips_n_ports: networks.append(flips_n_ports) data = {'networks': networks} if get_routers and self.l3_plugin: routers = [] all_routers = self.l3_plugin.get_routers(admin_context) or [] for router in all_routers: interfaces = [] mapped_router = self._map_state_and_status(router) router_filter = { 'device_owner': [const.DEVICE_OWNER_ROUTER_INTF], 'device_id': [router.get('id')] } router_ports = self.get_ports(admin_context, filters=router_filter) or [] for port in router_ports: net_id = port.get('network_id') subnet_id = port['fixed_ips'][0]['subnet_id'] intf_details = self._get_router_intf_details(admin_context, net_id, subnet_id) interfaces.append(intf_details) mapped_router['interfaces'] = interfaces routers.append(mapped_router) data.update({'routers': routers}) return data def _send_all_data(self, send_ports=True, send_floating_ips=True, send_routers=True, timeout=None, triggered_by_tenant=None): """Pushes all data to network ctrl (networks/ports, ports/attachments). This gives the controller an option to re-sync it's persistent store with neutron's current view of that data. """ data = self._get_all_data(send_ports, send_floating_ips, send_routers) data['triggered_by_tenant'] = triggered_by_tenant errstr = _("Unable to update remote topology: %s") return self.servers.rest_action('PUT', servermanager.TOPOLOGY_PATH, data, errstr, timeout=timeout) def _get_network_with_floatingips(self, network, context=None): if context is None: context = qcontext.get_admin_context() net_id = network['id'] net_filter = {'floating_network_id': [net_id]} if self.l3_plugin: fl_ips = self.l3_plugin.get_floatingips(context, filters=net_filter) or [] network['floatingips'] = fl_ips return network def _get_all_subnets_json_for_network(self, net_id, context=None): if context is None: context = qcontext.get_admin_context() # start a sub-transaction to avoid breaking parent transactions with context.session.begin(subtransactions=True): subnets = self._get_subnets_by_network(context, net_id) subnets_details = [] if subnets: for subnet in subnets: subnet_dict = self._make_subnet_dict(subnet) mapped_subnet = self._map_state_and_status(subnet_dict) subnets_details.append(mapped_subnet) return subnets_details def _get_mapped_network_with_subnets(self, network, context=None): # if context is not provided, admin context is used if context is None: context = qcontext.get_admin_context() network = self._map_state_and_status(network) subnets = self._get_all_subnets_json_for_network(network['id'], context) network['subnets'] = subnets for subnet in (subnets or []): if subnet['gateway_ip']: # FIX: For backward compatibility with wire protocol network['gateway'] = subnet['gateway_ip'] break else: network['gateway'] = '' network[external_net.EXTERNAL] = self._network_is_external( context, network['id']) # include ML2 segmentation types network['segmentation_types'] = getattr(self, "segmentation_types", "") return network def _send_create_network(self, network, context=None): tenant_id = network['tenant_id'] mapped_network = self._get_mapped_network_with_subnets(network, context) self.servers.rest_create_network(tenant_id, mapped_network) def _send_update_network(self, network, context=None): net_id = network['id'] tenant_id = network['tenant_id'] mapped_network = self._get_mapped_network_with_subnets(network, context) net_fl_ips = self._get_network_with_floatingips(mapped_network, context) self.servers.rest_update_network(tenant_id, net_id, net_fl_ips) def _send_delete_network(self, network, context=None): net_id = network['id'] tenant_id = network['tenant_id'] self.servers.rest_delete_network(tenant_id, net_id) def _map_state_and_status(self, resource): resource = copy.copy(resource) resource['state'] = ('UP' if resource.pop('admin_state_up', True) else 'DOWN') resource.pop('status', None) return resource def _warn_on_state_status(self, resource): if resource.get('admin_state_up', True) is False: LOG.warning(_("Setting admin_state_up=False is not supported " "in this plugin version. Ignoring setting for " "resource: %s"), resource) if 'status' in resource: if resource['status'] != const.NET_STATUS_ACTIVE: LOG.warning(_("Operational status is internally set by the " "plugin. Ignoring setting status=%s."), resource['status']) def _get_router_intf_details(self, context, intf_id, subnet_id): # we will use the network id as interface's id net_id = intf_id network = self.get_network(context, net_id) subnet = self.get_subnet(context, subnet_id) mapped_network = self._get_mapped_network_with_subnets(network) mapped_subnet = self._map_state_and_status(subnet) data = { 'id': intf_id, "network": mapped_network, "subnet": mapped_subnet } return data def _extend_port_dict_binding(self, context, port): cfg_vif_type = cfg.CONF.NOVA.vif_type.lower() if not cfg_vif_type in (portbindings.VIF_TYPE_OVS, portbindings.VIF_TYPE_IVS): LOG.warning(_("Unrecognized vif_type in configuration " "[%s]. Defaulting to ovs."), cfg_vif_type) cfg_vif_type = portbindings.VIF_TYPE_OVS # In ML2, the host_id is already populated if portbindings.HOST_ID in port: hostid = port[portbindings.HOST_ID] elif 'id' in port: hostid = porttracker_db.get_port_hostid(context, port['id']) else: hostid = None if hostid: port[portbindings.HOST_ID] = hostid override = self._check_hostvif_override(hostid) if override: cfg_vif_type = override port[portbindings.VIF_TYPE] = cfg_vif_type port[portbindings.VIF_DETAILS] = { # TODO(rkukura): Replace with new VIF security details portbindings.CAP_PORT_FILTER: 'security-group' in self.supported_extension_aliases, portbindings.OVS_HYBRID_PLUG: True } return port def _check_hostvif_override(self, hostid): for v in cfg.CONF.NOVA.vif_types: if hostid in getattr(cfg.CONF.NOVA, "node_override_vif_" + v, []): return v return False def _get_port_net_tenantid(self, context, port): net = super(NeutronRestProxyV2Base, self).get_network(context, port["network_id"]) return net['tenant_id'] def async_port_create(self, tenant_id, net_id, port): try: self.servers.rest_create_port(tenant_id, net_id, port) except servermanager.RemoteRestError as e: # 404 should never be received on a port create unless # there are inconsistencies between the data in neutron # and the data in the backend. # Run a sync to get it consistent. if (cfg.CONF.RESTPROXY.auto_sync_on_failure and e.status == httplib.NOT_FOUND and servermanager.NXNETWORK in e.reason): LOG.error(_("Iconsistency with backend controller " "triggering full synchronization.")) # args depend on if we are operating in ML2 driver # or as the full plugin topoargs = self.servers.get_topo_function_args self._send_all_data( send_ports=topoargs['get_ports'], send_floating_ips=topoargs['get_floating_ips'], send_routers=topoargs['get_routers'], triggered_by_tenant=tenant_id ) # If the full sync worked, the port will be created # on the controller so it can be safely marked as active else: # Any errors that don't result in a successful auto-sync # require that the port be placed into the error state. LOG.error( _("NeutronRestProxyV2: Unable to create port: %s"), e) try: self._set_port_status(port['id'], const.PORT_STATUS_ERROR) except exceptions.PortNotFound: # If port is already gone from DB and there was an error # creating on the backend, everything is already consistent pass return new_status = (const.PORT_STATUS_ACTIVE if port['state'] == 'UP' else const.PORT_STATUS_DOWN) try: self._set_port_status(port['id'], new_status) except exceptions.PortNotFound: # This port was deleted before the create made it to the controller # so it now needs to be deleted since the normal delete request # would have deleted an non-existent port. self.servers.rest_delete_port(tenant_id, net_id, port['id']) # NOTE(kevinbenton): workaround for eventlet/mysql deadlock @utils.synchronized('bsn-port-barrier') def _set_port_status(self, port_id, status): session = db.get_session() try: port = session.query(models_v2.Port).filter_by(id=port_id).one() port['status'] = status session.flush() except sqlexc.NoResultFound: raise exceptions.PortNotFound(port_id=port_id) def put_context_in_serverpool(f): @functools.wraps(f) def wrapper(self, context, *args, **kwargs): # core plugin: context is top level object # ml2: keeps context in _plugin_context self.servers.set_context(getattr(context, '_plugin_context', context)) return f(self, context, *args, **kwargs) return wrapper class NeutronRestProxyV2(NeutronRestProxyV2Base, addr_pair_db.AllowedAddressPairsMixin, extradhcpopt_db.ExtraDhcpOptMixin, agentschedulers_db.DhcpAgentSchedulerDbMixin, SecurityGroupServerRpcMixin): _supported_extension_aliases = ["external-net", "binding", "extra_dhcp_opt", "quotas", "dhcp_agent_scheduler", "agent", "security-group", "allowed-address-pairs"] @property def supported_extension_aliases(self): if not hasattr(self, '_aliases'): aliases = self._supported_extension_aliases[:] sg_rpc.disable_security_group_extension_by_config(aliases) self._aliases = aliases return self._aliases def __init__(self): super(NeutronRestProxyV2, self).__init__() LOG.info(_('NeutronRestProxy: Starting plugin. Version=%s'), version.version_string_with_vcs()) pl_config.register_config() self.evpool = eventlet.GreenPool(cfg.CONF.RESTPROXY.thread_pool_size) # Include the Big Switch Extensions path in the api_extensions neutron_extensions.append_api_extensions_path(extensions.__path__) self.add_meta_server_route = cfg.CONF.RESTPROXY.add_meta_server_route # init network ctrl connections self.servers = servermanager.ServerPool() self.servers.get_topo_function = self._get_all_data self.servers.get_topo_function_args = {'get_ports': True, 'get_floating_ips': True, 'get_routers': True} self.network_scheduler = importutils.import_object( cfg.CONF.network_scheduler_driver ) # setup rpc for security and DHCP agents self._setup_rpc() if cfg.CONF.RESTPROXY.sync_data: self._send_all_data() LOG.debug(_("NeutronRestProxyV2: initialization done")) def _setup_rpc(self): self.conn = n_rpc.create_connection(new=True) self.topic = topics.PLUGIN self.notifier = AgentNotifierApi(topics.AGENT) # init dhcp agent support self._dhcp_agent_notifier = dhcp_rpc_agent_api.DhcpAgentNotifyAPI() self.agent_notifiers[const.AGENT_TYPE_DHCP] = ( self._dhcp_agent_notifier ) self.endpoints = [securitygroups_rpc.SecurityGroupServerRpcCallback(), dhcp_rpc.DhcpRpcCallback(), agents_db.AgentExtRpcCallback()] self.conn.create_consumer(self.topic, self.endpoints, fanout=False) # Consume from all consumers in threads self.conn.consume_in_threads() @put_context_in_serverpool def create_network(self, context, network): """Create a network. Network represents an L2 network segment which can have a set of subnets and ports associated with it. :param context: neutron api request context :param network: dictionary describing the network :returns: a sequence of mappings with the following signature: { "id": UUID representing the network. "name": Human-readable name identifying the network. "tenant_id": Owner of network. NOTE: only admin user can specify a tenant_id other than its own. "admin_state_up": Sets admin state of network. if down, network does not forward packets. "status": Indicates whether network is currently operational (values are "ACTIVE", "DOWN", "BUILD", and "ERROR") "subnets": Subnets associated with this network. } :raises: RemoteRestError """ LOG.debug(_("NeutronRestProxyV2: create_network() called")) self._warn_on_state_status(network['network']) with context.session.begin(subtransactions=True): self._ensure_default_security_group( context, network['network']["tenant_id"] ) # create network in DB new_net = super(NeutronRestProxyV2, self).create_network(context, network) self._process_l3_create(context, new_net, network['network']) # create network on the network controller self._send_create_network(new_net, context) # return created network return new_net @put_context_in_serverpool def update_network(self, context, net_id, network): """Updates the properties of a particular Virtual Network. :param context: neutron api request context :param net_id: uuid of the network to update :param network: dictionary describing the updates :returns: a sequence of mappings with the following signature: { "id": UUID representing the network. "name": Human-readable name identifying the network. "tenant_id": Owner of network. NOTE: only admin user can specify a tenant_id other than its own. "admin_state_up": Sets admin state of network. if down, network does not forward packets. "status": Indicates whether network is currently operational (values are "ACTIVE", "DOWN", "BUILD", and "ERROR") "subnets": Subnets associated with this network. } :raises: exceptions.NetworkNotFound :raises: RemoteRestError """ LOG.debug(_("NeutronRestProxyV2.update_network() called")) self._warn_on_state_status(network['network']) session = context.session with session.begin(subtransactions=True): new_net = super(NeutronRestProxyV2, self).update_network( context, net_id, network) self._process_l3_update(context, new_net, network['network']) # update network on network controller self._send_update_network(new_net, context) return new_net # NOTE(kevinbenton): workaround for eventlet/mysql deadlock @utils.synchronized('bsn-port-barrier') @put_context_in_serverpool def delete_network(self, context, net_id): """Delete a network. :param context: neutron api request context :param id: UUID representing the network to delete. :returns: None :raises: exceptions.NetworkInUse :raises: exceptions.NetworkNotFound :raises: RemoteRestError """ LOG.debug(_("NeutronRestProxyV2: delete_network() called")) # Validate args orig_net = super(NeutronRestProxyV2, self).get_network(context, net_id) with context.session.begin(subtransactions=True): self._process_l3_delete(context, net_id) ret_val = super(NeutronRestProxyV2, self).delete_network(context, net_id) self._send_delete_network(orig_net, context) return ret_val @put_context_in_serverpool def create_port(self, context, port): """Create a port, which is a connection point of a device (e.g., a VM NIC) to attach an L2 Neutron network. :param context: neutron api request context :param port: dictionary describing the port :returns: { "id": uuid representing the port. "network_id": uuid of network. "tenant_id": tenant_id "mac_address": mac address to use on this port. "admin_state_up": Sets admin state of port. if down, port does not forward packets. "status": dicates whether port is currently operational (limit values to "ACTIVE", "DOWN", "BUILD", and "ERROR") "fixed_ips": list of subnet IDs and IP addresses to be used on this port "device_id": identifies the device (e.g., virtual server) using this port. } :raises: exceptions.NetworkNotFound :raises: exceptions.StateInvalid :raises: RemoteRestError """ LOG.debug(_("NeutronRestProxyV2: create_port() called")) # Update DB in new session so exceptions rollback changes with context.session.begin(subtransactions=True): self._ensure_default_security_group_on_port(context, port) sgids = self._get_security_groups_on_port(context, port) # non-router port status is set to pending. it is then updated # after the async rest call completes. router ports are synchronous if port['port']['device_owner'] == l3_db.DEVICE_OWNER_ROUTER_INTF: port['port']['status'] = const.PORT_STATUS_ACTIVE else: port['port']['status'] = const.PORT_STATUS_BUILD dhcp_opts = port['port'].get(edo_ext.EXTRADHCPOPTS, []) new_port = super(NeutronRestProxyV2, self).create_port(context, port) self._process_port_create_security_group(context, new_port, sgids) if (portbindings.HOST_ID in port['port'] and 'id' in new_port): host_id = port['port'][portbindings.HOST_ID] porttracker_db.put_port_hostid(context, new_port['id'], host_id) new_port[addr_pair.ADDRESS_PAIRS] = ( self._process_create_allowed_address_pairs( context, new_port, port['port'].get(addr_pair.ADDRESS_PAIRS))) self._process_port_create_extra_dhcp_opts(context, new_port, dhcp_opts) new_port = self._extend_port_dict_binding(context, new_port) net = super(NeutronRestProxyV2, self).get_network(context, new_port["network_id"]) if self.add_meta_server_route: if new_port['device_owner'] == const.DEVICE_OWNER_DHCP: destination = METADATA_SERVER_IP + '/32' self._add_host_route(context, destination, new_port) # create on network ctrl mapped_port = self._map_state_and_status(new_port) # ports have to be created synchronously when creating a router # port since adding router interfaces is a multi-call process if mapped_port['device_owner'] == l3_db.DEVICE_OWNER_ROUTER_INTF: self.servers.rest_create_port(net["tenant_id"], new_port["network_id"], mapped_port) else: self.evpool.spawn_n(self.async_port_create, net["tenant_id"], new_port["network_id"], mapped_port) self.notify_security_groups_member_updated(context, new_port) return new_port def get_port(self, context, id, fields=None): with context.session.begin(subtransactions=True): port = super(NeutronRestProxyV2, self).get_port(context, id, fields) self._extend_port_dict_binding(context, port) return self._fields(port, fields) def get_ports(self, context, filters=None, fields=None): with context.session.begin(subtransactions=True): ports = super(NeutronRestProxyV2, self).get_ports(context, filters, fields) for port in ports: self._extend_port_dict_binding(context, port) return [self._fields(port, fields) for port in ports] @put_context_in_serverpool def update_port(self, context, port_id, port): """Update values of a port. :param context: neutron api request context :param id: UUID representing the port to update. :param port: dictionary with keys indicating fields to update. :returns: a mapping sequence with the following signature: { "id": uuid representing the port. "network_id": uuid of network. "tenant_id": tenant_id "mac_address": mac address to use on this port. "admin_state_up": sets admin state of port. if down, port does not forward packets. "status": dicates whether port is currently operational (limit values to "ACTIVE", "DOWN", "BUILD", and "ERROR") "fixed_ips": list of subnet IDs and IP addresses to be used on this port "device_id": identifies the device (e.g., virtual server) using this port. } :raises: exceptions.StateInvalid :raises: exceptions.PortNotFound :raises: RemoteRestError """ LOG.debug(_("NeutronRestProxyV2: update_port() called")) self._warn_on_state_status(port['port']) # Validate Args orig_port = super(NeutronRestProxyV2, self).get_port(context, port_id) with context.session.begin(subtransactions=True): # Update DB new_port = super(NeutronRestProxyV2, self).update_port(context, port_id, port) ctrl_update_required = False if addr_pair.ADDRESS_PAIRS in port['port']: ctrl_update_required |= ( self.update_address_pairs_on_port(context, port_id, port, orig_port, new_port)) self._update_extra_dhcp_opts_on_port(context, port_id, port, new_port) old_host_id = porttracker_db.get_port_hostid(context, orig_port['id']) if (portbindings.HOST_ID in port['port'] and 'id' in new_port): host_id = port['port'][portbindings.HOST_ID] porttracker_db.put_port_hostid(context, new_port['id'], host_id) if old_host_id != host_id: ctrl_update_required = True if (new_port.get("device_id") != orig_port.get("device_id") and orig_port.get("device_id")): ctrl_update_required = True if ctrl_update_required: # tenant_id must come from network in case network is shared net_tenant_id = self._get_port_net_tenantid(context, new_port) new_port = self._extend_port_dict_binding(context, new_port) mapped_port = self._map_state_and_status(new_port) self.servers.rest_update_port(net_tenant_id, new_port["network_id"], mapped_port) agent_update_required = self.update_security_group_on_port( context, port_id, port, orig_port, new_port) agent_update_required |= self.is_security_group_member_updated( context, orig_port, new_port) # return new_port return new_port # NOTE(kevinbenton): workaround for eventlet/mysql deadlock @utils.synchronized('bsn-port-barrier') @put_context_in_serverpool def delete_port(self, context, port_id, l3_port_check=True): """Delete a port. :param context: neutron api request context :param id: UUID representing the port to delete. :raises: exceptions.PortInUse :raises: exceptions.PortNotFound :raises: exceptions.NetworkNotFound :raises: RemoteRestError """ LOG.debug(_("NeutronRestProxyV2: delete_port() called")) # 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 and self.l3_plugin: self.l3_plugin.prevent_l3_port_deletion(context, port_id) with context.session.begin(subtransactions=True): if self.l3_plugin: router_ids = self.l3_plugin.disassociate_floatingips( context, port_id, do_notify=False) self._delete_port_security_group_bindings(context, port_id) port = super(NeutronRestProxyV2, self).get_port(context, port_id) # Tenant ID must come from network in case the network is shared tenid = self._get_port_net_tenantid(context, port) self._delete_port(context, port_id) self.servers.rest_delete_port(tenid, port['network_id'], port_id) if self.l3_plugin: # now that we've left db transaction, we are safe to notify self.l3_plugin.notify_routers_updated(context, router_ids) @put_context_in_serverpool def create_subnet(self, context, subnet): LOG.debug(_("NeutronRestProxyV2: create_subnet() called")) self._warn_on_state_status(subnet['subnet']) with context.session.begin(subtransactions=True): # create subnet in DB new_subnet = super(NeutronRestProxyV2, self).create_subnet(context, subnet) net_id = new_subnet['network_id'] orig_net = super(NeutronRestProxyV2, self).get_network(context, net_id) # update network on network controller self._send_update_network(orig_net, context) return new_subnet @put_context_in_serverpool def update_subnet(self, context, id, subnet): LOG.debug(_("NeutronRestProxyV2: update_subnet() called")) self._warn_on_state_status(subnet['subnet']) with context.session.begin(subtransactions=True): # update subnet in DB new_subnet = super(NeutronRestProxyV2, self).update_subnet(context, id, subnet) net_id = new_subnet['network_id'] orig_net = super(NeutronRestProxyV2, self).get_network(context, net_id) # update network on network controller self._send_update_network(orig_net, context) return new_subnet # NOTE(kevinbenton): workaround for eventlet/mysql deadlock @utils.synchronized('bsn-port-barrier') @put_context_in_serverpool def delete_subnet(self, context, id): LOG.debug(_("NeutronRestProxyV2: delete_subnet() called")) orig_subnet = super(NeutronRestProxyV2, self).get_subnet(context, id) net_id = orig_subnet['network_id'] with context.session.begin(subtransactions=True): # delete subnet in DB super(NeutronRestProxyV2, self).delete_subnet(context, id) orig_net = super(NeutronRestProxyV2, self).get_network(context, net_id) # update network on network controller - exception will rollback self._send_update_network(orig_net, context) def _add_host_route(self, context, destination, port): subnet = {} for fixed_ip in port['fixed_ips']: subnet_id = fixed_ip['subnet_id'] nexthop = fixed_ip['ip_address'] subnet['host_routes'] = [{'destination': destination, 'nexthop': nexthop}] updated_subnet = self.update_subnet(context, subnet_id, {'subnet': subnet}) payload = {'subnet': updated_subnet} self._dhcp_agent_notifier.notify(context, payload, 'subnet.update.end') LOG.debug(_("Adding host route: ")) LOG.debug(_("Destination:%(dst)s nexthop:%(next)s"), {'dst': destination, 'next': nexthop})