Merge "Big Switch: Separate L3 functions into L3 service"

neutron/plugins/bigswitch/l3_router_plugin.py

@@ -0,0 +1,304 @@
+# Copyright 2014 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.
+#
+
+"""
+Neutron L3 REST Proxy Plugin for Big Switch and Floodlight Controllers.
+
+This plugin handles the L3 router calls for Big Switch Floodlight deployments.
+It is intended to be used in conjunction with the Big Switch ML2 driver or the
+Big Switch core plugin.
+"""
+
+from oslo.config import cfg
+
+from neutron.api import extensions as neutron_extensions
+from neutron.common import exceptions
+from neutron.common import log
+from neutron.common import utils
+from neutron.db import l3_db
+from neutron.extensions import l3
+from neutron.openstack.common import excutils
+from neutron.openstack.common import log as logging
+from neutron.plugins.bigswitch import extensions
+from neutron.plugins.bigswitch import plugin as cplugin
+from neutron.plugins.bigswitch import routerrule_db
+from neutron.plugins.bigswitch import servermanager
+from neutron.plugins.common import constants
+
+# number of fields in a router rule string
+ROUTER_RULE_COMPONENT_COUNT = 5
+LOG = logging.getLogger(__name__)
+put_context_in_serverpool = cplugin.put_context_in_serverpool
+
+
+class L3RestProxy(cplugin.NeutronRestProxyV2Base,
+                  routerrule_db.RouterRule_db_mixin):
+
+    supported_extension_aliases = ["router", "router_rules"]
+
+    @staticmethod
+    def get_plugin_type():
+        return constants.L3_ROUTER_NAT
+
+    @staticmethod
+    def get_plugin_description():
+        return _("L3 Router Service Plugin for Big Switch fabric")
+
+    def __init__(self):
+        # Include the Big Switch Extensions path in the api_extensions
+        neutron_extensions.append_api_extensions_path(extensions.__path__)
+        super(L3RestProxy, self).__init__()
+        self.servers = servermanager.ServerPool.get_instance()
+
+    @put_context_in_serverpool
+    @log.log
+    def create_router(self, context, router):
+        self._warn_on_state_status(router['router'])
+
+        tenant_id = self._get_tenant_id_for_create(context, router["router"])
+
+        # set default router rules
+        rules = self._get_tenant_default_router_rules(tenant_id)
+        router['router']['router_rules'] = rules
+
+        with context.session.begin(subtransactions=True):
+            # create router in DB
+            new_router = super(L3RestProxy, self).create_router(context,
+                                                                router)
+            mapped_router = self._map_state_and_status(new_router)
+            self.servers.rest_create_router(tenant_id, mapped_router)
+
+            # return created router
+            return new_router
+
+    @put_context_in_serverpool
+    @log.log
+    def update_router(self, context, router_id, router):
+        self._warn_on_state_status(router['router'])
+
+        orig_router = super(L3RestProxy, self).get_router(context, router_id)
+        tenant_id = orig_router["tenant_id"]
+        with context.session.begin(subtransactions=True):
+            new_router = super(L3RestProxy,
+                               self).update_router(context, router_id, router)
+            router = self._map_state_and_status(new_router)
+
+            # update router on network controller
+            self.servers.rest_update_router(tenant_id, router, router_id)
+
+            # return updated router
+            return new_router
+
+    # NOTE(kevinbenton): workaround for eventlet/mysql deadlock.
+    # delete_router ends up calling _delete_port instead of delete_port.
+    @utils.synchronized('bsn-port-barrier')
+    @put_context_in_serverpool
+    @log.log
+    def delete_router(self, context, router_id):
+        with context.session.begin(subtransactions=True):
+            orig_router = self._get_router(context, router_id)
+            tenant_id = orig_router["tenant_id"]
+
+            # Ensure that the router is not used
+            router_filter = {'router_id': [router_id]}
+            fips = self.get_floatingips_count(context.elevated(),
+                                              filters=router_filter)
+            if fips:
+                raise l3.RouterInUse(router_id=router_id)
+
+            device_owner = l3_db.DEVICE_OWNER_ROUTER_INTF
+            device_filter = {'device_id': [router_id],
+                             'device_owner': [device_owner]}
+            ports = self.get_ports_count(context.elevated(),
+                                         filters=device_filter)
+            if ports:
+                raise l3.RouterInUse(router_id=router_id)
+            super(L3RestProxy, self).delete_router(context, router_id)
+
+            # delete from network controller
+            self.servers.rest_delete_router(tenant_id, router_id)
+
+    @put_context_in_serverpool
+    @log.log
+    def add_router_interface(self, context, router_id, interface_info):
+        # Validate args
+        router = self._get_router(context, router_id)
+        tenant_id = router['tenant_id']
+
+        with context.session.begin(subtransactions=True):
+            # create interface in DB
+            new_intf_info = super(L3RestProxy,
+                                  self).add_router_interface(context,
+                                                             router_id,
+                                                             interface_info)
+            port = self._get_port(context, new_intf_info['port_id'])
+            net_id = port['network_id']
+            subnet_id = new_intf_info['subnet_id']
+            # we will use the port's network id as interface's id
+            interface_id = net_id
+            intf_details = self._get_router_intf_details(context,
+                                                         interface_id,
+                                                         subnet_id)
+
+            # create interface on the network controller
+            self.servers.rest_add_router_interface(tenant_id, router_id,
+                                                   intf_details)
+            return new_intf_info
+
+    @put_context_in_serverpool
+    @log.log
+    def remove_router_interface(self, context, router_id, interface_info):
+        # Validate args
+        router = self._get_router(context, router_id)
+        tenant_id = router['tenant_id']
+
+        # we will first get the interface identifier before deleting in the DB
+        if not interface_info:
+            msg = _("Either subnet_id or port_id must be specified")
+            raise exceptions.BadRequest(resource='router', msg=msg)
+        if 'port_id' in interface_info:
+            port = self._get_port(context, interface_info['port_id'])
+            interface_id = port['network_id']
+        elif 'subnet_id' in interface_info:
+            subnet = self._get_subnet(context, interface_info['subnet_id'])
+            interface_id = subnet['network_id']
+        else:
+            msg = _("Either subnet_id or port_id must be specified")
+            raise exceptions.BadRequest(resource='router', msg=msg)
+
+        with context.session.begin(subtransactions=True):
+            # remove router in DB
+            del_ret = super(L3RestProxy,
+                            self).remove_router_interface(context,
+                                                          router_id,
+                                                          interface_info)
+
+            # create router on the network controller
+            self.servers.rest_remove_router_interface(tenant_id, router_id,
+                                                      interface_id)
+            return del_ret
+
+    @put_context_in_serverpool
+    @log.log
+    def create_floatingip(self, context, floatingip):
+        with context.session.begin(subtransactions=True):
+            # create floatingip in DB
+            new_fl_ip = super(L3RestProxy,
+                              self).create_floatingip(context, floatingip)
+
+            # create floatingip on the network controller
+            try:
+                if 'floatingip' in self.servers.get_capabilities():
+                    self.servers.rest_create_floatingip(
+                        new_fl_ip['tenant_id'], new_fl_ip)
+                else:
+                    self._send_floatingip_update(context)
+            except servermanager.RemoteRestError as e:
+                with excutils.save_and_reraise_exception():
+                    LOG.error(
+                        _("NeutronRestProxyV2: Unable to create remote "
+                          "floating IP: %s"), e)
+            # return created floating IP
+            return new_fl_ip
+
+    @put_context_in_serverpool
+    @log.log
+    def update_floatingip(self, context, id, floatingip):
+        with context.session.begin(subtransactions=True):
+            # update floatingip in DB
+            new_fl_ip = super(L3RestProxy,
+                              self).update_floatingip(context, id, floatingip)
+
+            # update network on network controller
+            if 'floatingip' in self.servers.get_capabilities():
+                self.servers.rest_update_floatingip(new_fl_ip['tenant_id'],
+                                                    new_fl_ip, id)
+            else:
+                self._send_floatingip_update(context)
+            return new_fl_ip
+
+    @put_context_in_serverpool
+    @log.log
+    def delete_floatingip(self, context, id):
+        with context.session.begin(subtransactions=True):
+            # delete floating IP in DB
+            old_fip = super(L3RestProxy, self).get_floatingip(context, id)
+            super(L3RestProxy, self).delete_floatingip(context, id)
+
+            # update network on network controller
+            if 'floatingip' in self.servers.get_capabilities():
+                self.servers.rest_delete_floatingip(old_fip['tenant_id'], id)
+            else:
+                self._send_floatingip_update(context)
+
+    @put_context_in_serverpool
+    @log.log
+    def disassociate_floatingips(self, context, port_id, do_notify=True):
+        router_ids = super(L3RestProxy, self).disassociate_floatingips(
+            context, port_id, do_notify=do_notify)
+        self._send_floatingip_update(context)
+        return router_ids
+
+    # overriding method from l3_db as original method calls
+    # self.delete_floatingip() which in turn calls self.delete_port() which
+    # is locked with 'bsn-port-barrier'
+    @put_context_in_serverpool
+    def delete_disassociated_floatingips(self, context, network_id):
+        query = self._model_query(context, l3_db.FloatingIP)
+        query = query.filter_by(floating_network_id=network_id,
+                                fixed_port_id=None,
+                                router_id=None)
+        for fip in query:
+            context.session.delete(fip)
+            self._delete_port(context.elevated(), fip['floating_port_id'])
+
+    def _send_floatingip_update(self, context):
+        try:
+            ext_net_id = self.get_external_network_id(context)
+            if ext_net_id:
+                # Use the elevated state of the context for the ext_net query
+                admin_context = context.elevated()
+                ext_net = super(L3RestProxy,
+                                self).get_network(admin_context, ext_net_id)
+                # update external network on network controller
+                self._send_update_network(ext_net, admin_context)
+        except exceptions.TooManyExternalNetworks:
+            # get_external_network can raise errors when multiple external
+            # networks are detected, which isn't supported by the Plugin
+            LOG.error(_("NeutronRestProxyV2: too many external networks"))
+
+    def _get_tenant_default_router_rules(self, tenant):
+        rules = cfg.CONF.ROUTER.tenant_default_router_rule
+        default_set = []
+        tenant_set = []
+        for rule in rules:
+            items = rule.split(':')
+            # put an empty string on the end if nexthops wasn't specified
+            if len(items) < ROUTER_RULE_COMPONENT_COUNT:
+                items.append('')
+            try:
+                (tenant_id, source, destination, action, nexthops) = items
+            except ValueError:
+                continue
+            parsed_rule = {'source': source,
+                           'destination': destination, 'action': action,
+                           'nexthops': [hop for hop in nexthops.split(',')
+                                        if hop]}
+            if tenant_id == '*':
+                default_set.append(parsed_rule)
+            if tenant_id == tenant:
+                tenant_set.append(parsed_rule)
+        return tenant_set if tenant_set else default_set

neutron/plugins/bigswitch/plugin.py

@@ -77,18 +77,16 @@ 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 l3
 from neutron.extensions import portbindings
 from neutron import manager
-from neutron.openstack.common import excutils
 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 routerrule_db
 from neutron.plugins.bigswitch import servermanager
 from neutron.plugins.bigswitch import version
+from neutron.plugins.common import constants as pconst
 
 LOG = logging.getLogger(__name__)
 
@@ -154,12 +152,16 @@ class SecurityGroupServerRpcMixin(sg_db_rpc.SecurityGroupServerRpcMixin):
 
 
 class NeutronRestProxyV2Base(db_base_plugin_v2.NeutronDbPluginV2,
-                             external_net_db.External_net_db_mixin,
-                             routerrule_db.RouterRule_db_mixin):
+                             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()
@@ -196,9 +198,9 @@ class NeutronRestProxyV2Base(db_base_plugin_v2.NeutronDbPluginV2,
 
         data = {'networks': networks}
 
-        if get_routers:
+        if get_routers and self.l3_plugin:
             routers = []
-            all_routers = self.get_routers(admin_context) or []
+            all_routers = self.l3_plugin.get_routers(admin_context) or []
             for router in all_routers:
                 interfaces = []
                 mapped_router = self._map_state_and_status(router)
@@ -242,9 +244,10 @@ class NeutronRestProxyV2Base(db_base_plugin_v2.NeutronDbPluginV2,
 
         net_id = network['id']
         net_filter = {'floating_network_id': [net_id]}
-        fl_ips = self.get_floatingips(context,
-                                      filters=net_filter) or []
-        network['floatingips'] = fl_ips
+        if self.l3_plugin:
+            fl_ips = self.l3_plugin.get_floatingips(context,
+                                                    filters=net_filter) or []
+            network['floatingips'] = fl_ips
 
         return network
 
@@ -454,8 +457,8 @@ class NeutronRestProxyV2(NeutronRestProxyV2Base,
                          agentschedulers_db.DhcpAgentSchedulerDbMixin,
                          SecurityGroupServerRpcMixin):
 
-    _supported_extension_aliases = ["external-net", "router", "binding",
-                                    "router_rules", "extra_dhcp_opt", "quotas",
+    _supported_extension_aliases = ["external-net", "binding",
+                                    "extra_dhcp_opt", "quotas",
                                     "dhcp_agent_scheduler", "agent",
                                     "security-group", "allowed-address-pairs"]
 
@@ -805,11 +808,12 @@ class NeutronRestProxyV2(NeutronRestProxyV2Base,
 
         # 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, port_id)
+        if l3_port_check and self.l3_plugin:
+            self.l3_plugin.prevent_l3_port_deletion(context, port_id)
         with context.session.begin(subtransactions=True):
-            router_ids = self.disassociate_floatingips(
-                context, port_id, do_notify=False)
+            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
@@ -817,8 +821,9 @@ class NeutronRestProxyV2(NeutronRestProxyV2Base,
             self._delete_port(context, port_id)
             self.servers.rest_delete_port(tenid, port['network_id'], port_id)
 
-        # now that we've left db transaction, we are safe to notify
-        self.notify_routers_updated(context, router_ids)
+        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):
@@ -869,264 +874,6 @@ class NeutronRestProxyV2(NeutronRestProxyV2Base,
             # update network on network controller - exception will rollback
             self._send_update_network(orig_net, context)
 
-    def _get_tenant_default_router_rules(self, tenant):
-        rules = cfg.CONF.ROUTER.tenant_default_router_rule
-        defaultset = []
-        tenantset = []
-        for rule in rules:
-            items = rule.split(':')
-            if len(items) == 5:
-                (tenantid, source, destination, action, nexthops) = items
-            elif len(items) == 4:
-                (tenantid, source, destination, action) = items
-                nexthops = ''
-            else:
-                continue
-            parsedrule = {'source': source,
-                          'destination': destination, 'action': action,
-                          'nexthops': nexthops.split(',')}
-            if parsedrule['nexthops'][0] == '':
-                parsedrule['nexthops'] = []
-            if tenantid == '*':
-                defaultset.append(parsedrule)
-            if tenantid == tenant:
-                tenantset.append(parsedrule)
-        if tenantset:
-            return tenantset
-        return defaultset
-
-    @put_context_in_serverpool
-    def create_router(self, context, router):
-        LOG.debug(_("NeutronRestProxyV2: create_router() called"))
-
-        self._warn_on_state_status(router['router'])
-
-        tenant_id = self._get_tenant_id_for_create(context, router["router"])
-
-        # set default router rules
-        rules = self._get_tenant_default_router_rules(tenant_id)
-        router['router']['router_rules'] = rules
-
-        with context.session.begin(subtransactions=True):
-            # create router in DB
-            new_router = super(NeutronRestProxyV2, self).create_router(context,
-                                                                       router)
-            mapped_router = self._map_state_and_status(new_router)
-            self.servers.rest_create_router(tenant_id, mapped_router)
-
-            # return created router
-            return new_router
-
-    @put_context_in_serverpool
-    def update_router(self, context, router_id, router):
-
-        LOG.debug(_("NeutronRestProxyV2.update_router() called"))
-
-        self._warn_on_state_status(router['router'])
-
-        orig_router = super(NeutronRestProxyV2, self).get_router(context,
-                                                                 router_id)
-        tenant_id = orig_router["tenant_id"]
-        with context.session.begin(subtransactions=True):
-            new_router = super(NeutronRestProxyV2,
-                               self).update_router(context, router_id, router)
-            router = self._map_state_and_status(new_router)
-
-            # update router on network controller
-            self.servers.rest_update_router(tenant_id, router, router_id)
-
-            # return updated router
-            return new_router
-
-    # NOTE(kevinbenton): workaround for eventlet/mysql deadlock.
-    # delete_router ends up calling _delete_port instead of delete_port.
-    @utils.synchronized('bsn-port-barrier')
-    @put_context_in_serverpool
-    def delete_router(self, context, router_id):
-        LOG.debug(_("NeutronRestProxyV2: delete_router() called"))
-
-        with context.session.begin(subtransactions=True):
-            orig_router = self._get_router(context, router_id)
-            tenant_id = orig_router["tenant_id"]
-
-            # Ensure that the router is not used
-            router_filter = {'router_id': [router_id]}
-            fips = self.get_floatingips_count(context.elevated(),
-                                              filters=router_filter)
-            if fips:
-                raise l3.RouterInUse(router_id=router_id)
-
-            device_owner = l3_db.DEVICE_OWNER_ROUTER_INTF
-            device_filter = {'device_id': [router_id],
-                             'device_owner': [device_owner]}
-            ports = self.get_ports_count(context.elevated(),
-                                         filters=device_filter)
-            if ports:
-                raise l3.RouterInUse(router_id=router_id)
-            ret_val = super(NeutronRestProxyV2,
-                            self).delete_router(context, router_id)
-
-            # delete from network ctrl
-            self.servers.rest_delete_router(tenant_id, router_id)
-            return ret_val
-
-    @put_context_in_serverpool
-    def add_router_interface(self, context, router_id, interface_info):
-
-        LOG.debug(_("NeutronRestProxyV2: add_router_interface() called"))
-
-        # Validate args
-        router = self._get_router(context, router_id)
-        tenant_id = router['tenant_id']
-
-        with context.session.begin(subtransactions=True):
-            # create interface in DB
-            new_intf_info = super(NeutronRestProxyV2,
-                                  self).add_router_interface(context,
-                                                             router_id,
-                                                             interface_info)
-            port = self._get_port(context, new_intf_info['port_id'])
-            net_id = port['network_id']
-            subnet_id = new_intf_info['subnet_id']
-            # we will use the port's network id as interface's id
-            interface_id = net_id
-            intf_details = self._get_router_intf_details(context,
-                                                         interface_id,
-                                                         subnet_id)
-
-            # create interface on the network controller
-            self.servers.rest_add_router_interface(tenant_id, router_id,
-                                                   intf_details)
-            return new_intf_info
-
-    @put_context_in_serverpool
-    def remove_router_interface(self, context, router_id, interface_info):
-
-        LOG.debug(_("NeutronRestProxyV2: remove_router_interface() called"))
-
-        # Validate args
-        router = self._get_router(context, router_id)
-        tenant_id = router['tenant_id']
-
-        # we will first get the interface identifier before deleting in the DB
-        if not interface_info:
-            msg = _("Either subnet_id or port_id must be specified")
-            raise exceptions.BadRequest(resource='router', msg=msg)
-        if 'port_id' in interface_info:
-            port = self._get_port(context, interface_info['port_id'])
-            interface_id = port['network_id']
-        elif 'subnet_id' in interface_info:
-            subnet = self._get_subnet(context, interface_info['subnet_id'])
-            interface_id = subnet['network_id']
-        else:
-            msg = _("Either subnet_id or port_id must be specified")
-            raise exceptions.BadRequest(resource='router', msg=msg)
-
-        with context.session.begin(subtransactions=True):
-            # remove router in DB
-            del_ret = super(NeutronRestProxyV2,
-                            self).remove_router_interface(context,
-                                                          router_id,
-                                                          interface_info)
-
-            # create router on the network controller
-            self.servers.rest_remove_router_interface(tenant_id, router_id,
-                                                      interface_id)
-            return del_ret
-
-    @put_context_in_serverpool
-    def create_floatingip(self, context, floatingip):
-        LOG.debug(_("NeutronRestProxyV2: create_floatingip() called"))
-
-        with context.session.begin(subtransactions=True):
-            # create floatingip in DB
-            new_fl_ip = super(NeutronRestProxyV2,
-                              self).create_floatingip(context, floatingip)
-
-            # create floatingip on the network controller
-            try:
-                if 'floatingip' in self.servers.get_capabilities():
-                    self.servers.rest_create_floatingip(
-                        new_fl_ip['tenant_id'], new_fl_ip)
-                else:
-                    self._send_floatingip_update(context)
-            except servermanager.RemoteRestError as e:
-                with excutils.save_and_reraise_exception():
-                    LOG.error(
-                        _("NeutronRestProxyV2: Unable to create remote "
-                          "floating IP: %s"), e)
-            # return created floating IP
-            return new_fl_ip
-
-    @put_context_in_serverpool
-    def update_floatingip(self, context, id, floatingip):
-        LOG.debug(_("NeutronRestProxyV2: update_floatingip() called"))
-
-        with context.session.begin(subtransactions=True):
-            # update floatingip in DB
-            new_fl_ip = super(NeutronRestProxyV2,
-                              self).update_floatingip(context, id, floatingip)
-
-            # update network on network controller
-            if 'floatingip' in self.servers.get_capabilities():
-                self.servers.rest_update_floatingip(new_fl_ip['tenant_id'],
-                                                    new_fl_ip, id)
-            else:
-                self._send_floatingip_update(context)
-            return new_fl_ip
-
-    @put_context_in_serverpool
-    def delete_floatingip(self, context, id):
-        LOG.debug(_("NeutronRestProxyV2: delete_floatingip() called"))
-
-        with context.session.begin(subtransactions=True):
-            # delete floating IP in DB
-            old_fip = super(NeutronRestProxyV2, self).get_floatingip(context,
-                                                                     id)
-            super(NeutronRestProxyV2, self).delete_floatingip(context, id)
-
-            # update network on network controller
-            if 'floatingip' in self.servers.get_capabilities():
-                self.servers.rest_delete_floatingip(old_fip['tenant_id'], id)
-            else:
-                self._send_floatingip_update(context)
-
-    @put_context_in_serverpool
-    def disassociate_floatingips(self, context, port_id, do_notify=True):
-        LOG.debug(_("NeutronRestProxyV2: diassociate_floatingips() called"))
-        router_ids = super(NeutronRestProxyV2, self).disassociate_floatingips(
-            context, port_id, do_notify=do_notify)
-        self._send_floatingip_update(context)
-        return router_ids
-
-    # overriding method from l3_db as original method calls
-    # self.delete_floatingip() which in turn calls self.delete_port() which
-    # is locked with 'bsn-port-barrier'
-    @put_context_in_serverpool
-    def delete_disassociated_floatingips(self, context, network_id):
-        query = self._model_query(context, l3_db.FloatingIP)
-        query = query.filter_by(floating_network_id=network_id,
-                                fixed_port_id=None,
-                                router_id=None)
-        for fip in query:
-            context.session.delete(fip)
-            self._delete_port(context.elevated(), fip['floating_port_id'])
-
-    def _send_floatingip_update(self, context):
-        try:
-            ext_net_id = self.get_external_network_id(context)
-            if ext_net_id:
-                # Use the elevated state of the context for the ext_net query
-                admin_context = context.elevated()
-                ext_net = super(NeutronRestProxyV2,
-                                self).get_network(admin_context, ext_net_id)
-                # update external network on network controller
-                self._send_update_network(ext_net, admin_context)
-        except exceptions.TooManyExternalNetworks:
-            # get_external_network can raise errors when multiple external
-            # networks are detected, which isn't supported by the Plugin
-            LOG.error(_("NeutronRestProxyV2: too many external networks"))
-
     def _add_host_route(self, context, destination, port):
         subnet = {}
         for fixed_ip in port['fixed_ips']:

neutron/plugins/bigswitch/servermanager.py

@@ -228,6 +228,15 @@ class ServerProxy(object):
 
 class ServerPool(object):
 
+    _instance = None
+
+    @classmethod
+    def get_instance(cls):
+        if cls._instance:
+            return cls._instance
+        cls._instance = cls()
+        return cls._instance
+
     def __init__(self, timeout=False,
                  base_uri=BASE_URI, name='NeutronRestProxy'):
         LOG.debug(_("ServerPool: initializing"))
@@ -268,6 +277,7 @@ class ServerPool(object):
         ]
         eventlet.spawn(self._consistency_watchdog,
                        cfg.CONF.RESTPROXY.consistency_interval)
+        ServerPool._instance = self
         LOG.debug(_("ServerPool: initialization done"))
 
     def set_context(self, context):

neutron/tests/unit/bigswitch/etc/restproxy.ini.test

@@ -1,4 +1,6 @@
 # Test config file for quantum-proxy-plugin.
+[DEFAULT]
+service_plugins = bigswitch_l3
 
 [database]
 # This line MUST be changed to actually run the plugin.

neutron/tests/unit/bigswitch/test_base.py

@@ -25,6 +25,7 @@ from neutron.tests.unit.bigswitch import fake_server
 
 
 RESTPROXY_PKG_PATH = 'neutron.plugins.bigswitch.plugin'
+L3_RESTPROXY_PKG_PATH = 'neutron.plugins.bigswitch.l3_router_plugin'
 NOTIFIER = 'neutron.plugins.bigswitch.plugin.AgentNotifierApi'
 CERTFETCH = 'neutron.plugins.bigswitch.servermanager.ServerPool._fetch_cert'
 SERVER_MANAGER = 'neutron.plugins.bigswitch.servermanager'
@@ -36,6 +37,7 @@ CWATCH = SERVER_MANAGER + '.ServerPool._consistency_watchdog'
 class BigSwitchTestBase(object):
 
     _plugin_name = ('%s.NeutronRestProxyV2' % RESTPROXY_PKG_PATH)
+    _l3_plugin_name = ('%s.L3RestProxy' % L3_RESTPROXY_PKG_PATH)
 
     def setup_config_files(self):
         etc_path = os.path.join(os.path.dirname(__file__), 'etc')
@@ -49,6 +51,7 @@ class BigSwitchTestBase(object):
                               os.path.join(etc_path, 'ssl'), 'RESTPROXY')
         # The mock interferes with HTTP(S) connection caching
         cfg.CONF.set_override('cache_connections', False, 'RESTPROXY')
+        cfg.CONF.set_override('service_plugins', ['bigswitch_l3'])
 
     def setup_patches(self):
         self.plugin_notifier_p = mock.patch(NOTIFIER)

neutron/tests/unit/bigswitch/test_restproxy_plugin.py

@@ -45,8 +45,9 @@ class BigSwitchProxyPluginV2TestCase(test_base.BigSwitchTestBase,
         self.setup_patches()
         if plugin_name:
             self._plugin_name = plugin_name
+        service_plugins = {'L3_ROUTER_NAT': self._l3_plugin_name}
         super(BigSwitchProxyPluginV2TestCase,
-              self).setUp(self._plugin_name)
+              self).setUp(self._plugin_name, service_plugins=service_plugins)
         self.port_create_status = 'BUILD'
         self.startHttpPatch()
 
@@ -310,6 +311,6 @@ class TestBigSwitchProxySync(BigSwitchProxyPluginV2TestCase):
         self.assertEqual(result[0], 200)
 
 
-class TestBigSwitchAddressPairs(BigSwitchProxyPluginV2TestCase,
-                                test_addr_pair.TestAllowedAddressPairs):
+class TestBigSwitchAddressPairs(test_addr_pair.TestAllowedAddressPairs,
+                                BigSwitchProxyPluginV2TestCase):
     pass

neutron/tests/unit/bigswitch/test_router_db.py

@@ -70,14 +70,19 @@ class RouterDBTestBase(test_base.BigSwitchTestBase,
                        test_l3_plugin.L3BaseForIntTests,
                        test_l3_plugin.L3NatTestCaseMixin):
 
+    mock_rescheduling = False
+
     def setUp(self):
         self.setup_patches()
         self.setup_config_files()
         ext_mgr = RouterRulesTestExtensionManager()
+        service_plugins = {'L3_ROUTER_NAT': self._l3_plugin_name}
         super(RouterDBTestBase, self).setUp(plugin=self._plugin_name,
-                                            ext_mgr=ext_mgr)
+                                            ext_mgr=ext_mgr,
+                                            service_plugins=service_plugins)
         cfg.CONF.set_default('allow_overlapping_ips', False)
-        self.plugin_obj = manager.NeutronManager.get_plugin()
+        self.plugin_obj = manager.NeutronManager.get_service_plugins().get(
+            'L3_ROUTER_NAT')
         self.startHttpPatch()
 
     def tearDown(self):

setup.cfg

@@ -147,6 +147,7 @@ neutron.core_plugins =
 neutron.service_plugins =
     dummy = neutron.tests.unit.dummy_plugin:DummyServicePlugin
     router = neutron.services.l3_router.l3_router_plugin:L3RouterPlugin
+    bigswitch_l3 = neutron.plugins.bigswitch.l3_router_plugin:L3RestProxy
     firewall = neutron.services.firewall.fwaas_plugin:FirewallPlugin
     lbaas = neutron.services.loadbalancer.plugin:LoadBalancerPlugin
     vpnaas = neutron.services.vpn.plugin:VPNDriverPlugin