"/etc/selinux/“ was not accessible and so the

dbus service didn’t come up.  Thus causing an issue similar to this
systemd/systemd#719

adding /etc/selinux as volumes to the contianers.

Change-Id: I13f2fab2cc0d0cabe9ab5d1f7ce03c281be0e669
Closes-Bug: 1691536

playbooks/roles/node/defaults/main.yml

@@ -84,6 +84,7 @@ controller_ip_hostname_dict: {}
 # Volumes to be mounted to the containers
 contrail_container_volumes:
   - "{{ contrailctl_config_directory }}:/etc/contrailctl/"
+  - "/etc/selinux:/etc/selinux"
 
 contrail_controller_log_volumes:
   - "/var/log/contrail/controller:/var/log/contrail"