Add support to enable l3 port-forwarding plugin

Allows enabling neutron port forwarding plugin
and l3 extension to forward ports from floating
IP to a fixed neutron port.

Change-Id: Ic25c96a0ddcf4f69acbfb7a58acafec82c3b0aed
Implements: blueprint enable-l3-port-forwarding
(cherry picked from commit 1662a77b55)

ansible/group_vars/all.yml

@@ -601,6 +601,7 @@ enable_neutron_segments: "no"
 enable_neutron_sfc: "no"
 enable_neutron_metering: "no"
 enable_neutron_infoblox_ipam_agent: "no"
+enable_neutron_port_forwarding: "no"
 enable_nova_serialconsole_proxy: "no"
 enable_nova_ssh: "yes"
 enable_octavia: "no"

ansible/roles/neutron/defaults/main.yml

@@ -363,6 +363,8 @@ service_plugins:
     enabled: "{{ enable_neutron_vpnaas | bool }}"
   - name: "{{ opendaylight_l3_service_plugin }}"
     enabled: "{{ enable_opendaylight_l3 | bool and enable_opendaylight | bool }}"
+  - name: "port_forwarding"
+    enabled: "{{ enable_neutron_port_forwarding | bool }}"
 
 neutron_service_plugins: "{{ service_plugins|selectattr('enabled', 'equalto', true)|list }}"
 
@@ -395,6 +397,8 @@ l3_agent_extensions:
     enabled: "{{ enable_neutron_fwaas | bool }}"
   - name: "vpnaas"
     enabled: "{{ enable_neutron_vpnaas | bool }}"
+  - name: "port_forwarding"
+    enabled: "{{ enable_neutron_port_forwarding | bool }}"
 
 neutron_l3_agent_extensions: "{{ l3_agent_extensions | selectattr('enabled', 'equalto', true) | list }}"
 

releasenotes/notes/enable-l3-port-forwarding-fe9af935437fc070.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    Neutron port_forwarding service plugin, and l3 extension can be enabled with variable enable_neutron_port_forwarding.