Use systemd module instead of shell

Using ansible systemd module to daemon reload and service reload is the solution for the future.

Change-Id: I3f9142357379a548b1e1f4190e61157596f750fa
Co-Authored-By: Jean-Philippe Evrard <Jean-Philippe.Evrard@rackspace.co.uk>

handlers/main.yml

@@ -12,19 +12,14 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
-- name: Reload systemd daemon
-  command: "systemctl daemon-reload"
-  notify:
-    - Restart nova services
-
 - name: Restart libvirt-bin
-  service:
+  systemd:
     name: "{{ libvirt_service_name }}"
     state: "restarted"
+    daemon_reload: yes
 
 - name: Restart nova services
-  service:
+  systemd:
     name: "{{ item.value.service_name }}"
     state: "restarted"
   with_dict: "{{ nova_services }}"

tasks/nova_compute_kvm.yml

@@ -118,4 +118,4 @@
     - nova-config
     - nova-kvm
     - nova-libvirt
-    - nova-kvm-virsh-net
+    - nova-kvm-virsh-net

tasks/nova_init_systemd.yml

@@ -63,4 +63,4 @@
   with_dict: "{{ nova_services }}"
   when: inventory_hostname in groups[item.value.group]
   notify:
-    - Reload systemd daemon
+    - Restart nova services