GBP-specific L3 plugin for FIPs

Adds a L3 plugin that relays the Floating IP CRUD
to the plugin driver.
This is currently required for the APIC functioning,
and hence APIC-specific.

Change-Id: Ieeb648c7c502eb5072ef6886dcab7d455e8f0bff
Closes-bug: bug/1495203

gbpservice/neutron/services/l3_router/l3_apic.py

@@ -0,0 +1,85 @@
+# Copyright (c) 2015 Cisco Systems 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.
+
+from neutron.db import db_base_plugin_v2
+from neutron.db import extraroute_db
+from neutron.db import l3_dvr_db
+from neutron.extensions import l3
+from neutron import manager
+from neutron.plugins.common import constants
+
+
+class ApicGBPL3ServicePlugin(db_base_plugin_v2.NeutronDbPluginV2,
+        l3_dvr_db.L3_NAT_with_dvr_db_mixin,
+        extraroute_db.ExtraRoute_db_mixin):
+
+    supported_extension_aliases = ["router", "ext-gw-mode", "extraroute"]
+
+    def __init__(self):
+        super(ApicGBPL3ServicePlugin, self).__init__()
+        self._apic_gbp = None
+
+    @staticmethod
+    def get_plugin_type():
+        return constants.L3_ROUTER_NAT
+
+    @staticmethod
+    def get_plugin_description():
+        """Returns string description of the plugin."""
+        return _("L3 Router Service Plugin for basic L3 using the APIC")
+
+    @property
+    def apic_gbp(self):
+        if not self._apic_gbp:
+            self._apic_gbp = manager.NeutronManager.get_service_plugins()[
+                'GROUP_POLICY'].policy_driver_manager.policy_drivers[
+                'apic'].obj
+        return self._apic_gbp
+
+    # Floating IP API
+    def create_floatingip(self, context, floatingip):
+        res = super(ApicGBPL3ServicePlugin, self).create_floatingip(
+            context, floatingip)
+        port_id = floatingip.get('floatingip', {}).get('port_id')
+        self._notify_port_update(port_id, context)
+        return res
+
+    def update_floatingip(self, context, id, floatingip):
+        port_id = [self._get_port_mapped_to_floatingip(context, id)]
+        res = super(ApicGBPL3ServicePlugin, self).update_floatingip(
+            context, id, floatingip)
+        port_id.append(floatingip.get('floatingip', {}).get('port_id'))
+        for p in port_id:
+            self._notify_port_update(p, context)
+        return res
+
+    def delete_floatingip(self, context, id):
+        port_id = self._get_port_mapped_to_floatingip(context, id)
+        res = super(ApicGBPL3ServicePlugin, self).delete_floatingip(
+                context, id)
+        self._notify_port_update(port_id, context)
+        return res
+
+    def _get_port_mapped_to_floatingip(self, context, fip_id):
+        try:
+            fip = self.get_floatingip(context, fip_id)
+            return fip.get('port_id')
+        except l3.FloatingIPNotFound:
+            pass
+        return None
+
+    def _notify_port_update(self, port_id, context=None):
+        if self.apic_gbp and port_id:
+            self.apic_gbp._notify_port_update(context, port_id)

setup.cfg

@@ -44,6 +44,7 @@ neutron.service_plugins =
     servicechain = gbpservice.neutron.services.servicechain.plugins.msc.plugin:ServiceChainPlugin
     msc = gbpservice.neutron.services.servicechain.plugins.msc.plugin:ServiceChainPlugin
     ncp = gbpservice.neutron.services.servicechain.plugins.ncp.plugin:NodeCompositionPlugin
+    apic_gbp_l3 = gbpservice.neutron.services.l3_router.l3_apic:ApicGBPL3ServicePlugin
 gbpservice.neutron.group_policy.extension_drivers =
     test = gbpservice.neutron.tests.unit.services.grouppolicy.test_extension_driver_api:TestExtensionDriver
 gbpservice.neutron.group_policy.policy_drivers =