ceph-osd: trigger osd container restart on script change

The script ceph-osd-run.sh holds the config options to start the
container, if one of these options are modified we must restart the
container. This was not the case before becauase the 'notify' flag
wasn't present.

Closing: https://bugzilla.redhat.com/show_bug.cgi?id=1596061
Signed-off-by: Sébastien Han <seb@redhat.com>

roles/ceph-osd/tasks/docker/start_docker_osd.yml

@@ -24,6 +24,8 @@
     owner: "root"
     group: "root"
     mode: "0744"
+  notify:
+    - restart ceph osds
 
 - name: generate systemd unit file
   become: true
@@ -42,5 +44,4 @@
     state: started
     enabled: yes
     daemon_reload: yes
-  changed_when: false
   with_items: "{{ devices }}"