Add Neutron L2 Gateway service to scenario 004

This submission installs the Neutron L2 Gateway service
in the scenario 004.

This is only to check that the service is installed correctly
no sanity check is running yet.

Change-Id: I421802e9aa1a9f192860a6d72b4bb7c729666c3a

README.rst

@@ -78,6 +78,8 @@ and should be executed according to the following table:
 +----------------+-------------+-------------+-------------+-------------+-----------------+
 | neutron-bgpvpn |             |             |             |      X      |                 |
 +----------------+-------------+-------------+-------------+-------------+-----------------+
+| neutron-l2gw   |             |             |             |      X      |                 |
++----------------+-------------+-------------+-------------+-------------+-----------------+
 | rabbitmq       |      X      |      X      |      X      |      X      |        X        |
 +----------------+-------------+-------------+-------------+-------------+-----------------+
 | mongodb        |      X      |      X      |             |             |                 |

ci/environments/scenario004-multinode.yaml

@@ -13,6 +13,8 @@ resource_registry:
   OS::TripleO::Services::ManilaShare: ../../puppet/services/pacemaker/manila-share.yaml
   OS::TripleO::Services::ManilaBackendCephFs: ../../puppet/services/manila-backend-cephfs.yaml
   OS::TripleO::Services::NeutronBgpVpnApi: ../../puppet/services/neutron-bgpvpn-api.yaml
+  OS::TripleO::Services::NeutronL2gwApi: ../../puppet/services/neutron-l2gw-api.yaml
+  OS::TripleO::Services::NeutronL2gwAgent: ../../puppet/services/neutron-l2gw-agent.yaml
   # These enable Pacemaker
   OS::TripleO::Tasks::ControllerPreConfig: ../../extraconfig/tasks/pre_puppet_pacemaker.yaml
   OS::TripleO::Tasks::ControllerPostConfig: ../../extraconfig/tasks/post_puppet_pacemaker.yaml
@@ -44,6 +46,8 @@ parameter_defaults:
     - OS::TripleO::Services::NeutronBgpVpnApi
     - OS::TripleO::Services::NeutronDhcpAgent
     - OS::TripleO::Services::NeutronL3Agent
+    - OS::TripleO::Services::NeutronL2gwApi
+    - OS::TripleO::Services::NeutronL2gwAgent
     - OS::TripleO::Services::NeutronMetadataAgent
     - OS::TripleO::Services::NeutronServer
     - OS::TripleO::Services::NeutronCorePlugin
@@ -87,5 +91,6 @@ parameter_defaults:
   CephAdminKey: 'AQDLOh1VgEp6FRAAFzT7Zw+Y9V6JJExQAsRnRQ=='
   CephClientKey: 'AQC+vYNXgDAgAhAAc8UoYt+OTz5uhV7ItLdwUw=='
   SwiftCeilometerPipelineEnabled: false
-  NeutronServicePlugins: 'router, networking_bgpvpn.neutron.services.plugin.BGPVPNPlugin'
+  NeutronServicePlugins: 'router, networking_bgpvpn.neutron.services.plugin.BGPVPNPlugin, networking_l2gw.services.l2gateway.plugin.L2GatewayPlugin'
   BgpvpnServiceProvider: 'BGPVPN:Dummy:networking_bgpvpn.neutron.services.service_drivers.driver_api.BGPVPNDriver:default'
+  L2gwServiceProvider: ['L2GW:l2gw:networking_l2gw.services.l2gateway.service_drivers.L2gwDriver:default']