Create ovs temp directories when using ovs

This change creates a tmpfiles file and related directories when using
any "ovs" based plugin.

Change-Id: I616880bc6883eacb8393bbcaabaccccdd2665200
Closes-Bug: #1754144
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>

tasks/neutron_init_systemd.yml

@@ -51,6 +51,22 @@
   notify:
     - Restart neutron services
 
+- name: Create ovs tempfiles directory
+  block:
+    - name: Create ovs tmpfiles file
+      lineinfile:
+        dest: "/etc/tmpfiles.d/openstack-openvswitch.conf"
+        line: "D /var/run/openvswitch 2755 root root"
+        create: true
+
+    - name: Create ovs tmp directory
+      file:
+        path: "/var/run/openvswitch"
+        state: directory
+        mode: "02755"
+  when:
+    - "'ovs' in neutron_plugin_type | lower"
+
 - name: Place the systemd init script
   config_template:
     src: "neutron-systemd-init.j2"