Fix native openvswitch firewall driver in neutron-openvswitch-agent

ovs-ofctl is still being run by neutron-openvswitch-agent.
Potential removal is scheduled for Victoria.
Until then, we have to mount /run/openvswitch in there.

Change-Id: Ia73b5665cece523bb822f6a223335f6fae94fb6a
Closes-bug: #1867506

ansible/roles/neutron/defaults/main.yml

@@ -277,6 +277,7 @@ neutron_openvswitch_agent_default_volumes:
   - "{{ node_config_directory }}/neutron-openvswitch-agent/:{{ container_config_directory }}/:ro"
   - "/etc/localtime:/etc/localtime:ro"
   - "/lib/modules:/lib/modules:ro"
+  - "/run/openvswitch:/run/openvswitch:shared"
   - "kolla_logs:/var/log/kolla/"
   - "{{ kolla_dev_repos_directory ~ '/neutron/neutron:/var/lib/kolla/venv/lib/python' ~ distro_python_version ~ '/site-packages/neutron' if neutron_dev_mode | bool else '' }}"
 neutron_server_default_volumes:

releasenotes/notes/bug-1867506-3613746b8647cd73.yaml

@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    Fixes ``neutron-openvswitch-agent`` native ``openvswitch``
+    firewall driver.
+    `LP#1867506 <https://launchpad.net/bugs/1867506>`__