Use systemd module instead of shell

Using ansible systemd module to daemon reload and service reload
is the solution for the future. Let's embrace it!

Change-Id: I808c72fbea6353da102f4d4569b446ec9fbe8df1
Signed-off-by: Jean-Philippe Evrard <jean-philippe.evrard@rackspace.co.uk>

handlers/main.yml

@@ -14,21 +14,19 @@
 # limitations under the License.
 
 - name: Restart almanach collector
-  service:
+  systemd:
     name: "{{ almanach_collector_program_name }}"
     state: "restarted"
-    pattern: "{{ almanach_collector_program_name }}"
+    daemon_reload: "yes"
 
 - name: Restart almanach api
-  service:
+  systemd:
     name: "{{ almanach_api_program_name }}"
     state: "restarted"
-    pattern: "{{ almanach_api_program_name }}"
 
 - name: Restart almanach services
-  service:
+  systemd:
     name: "{{ item }}"
     state: "restarted"
-    pattern: "{{ item }}"
   with_items: "{{ almanach_service_names }}"
   failed_when: false

tasks/almanach_init_api_systemd.yml

@@ -20,10 +20,5 @@
     mode: "0644"
     owner: "root"
     group: "root"
-  register: systemd_init
-
-- name: Reload the systemd daemon
-  command: "systemctl daemon-reload"
-  when: systemd_init | changed
   notify:
     - Restart almanach services

tasks/almanach_init_collector_systemd.yml

@@ -20,10 +20,5 @@
     mode: "0644"
     owner: "root"
     group: "root"
-  register: systemd_init
-
-- name: Reload the systemd daemon
-  command: "systemctl daemon-reload"
-  when: systemd_init | changed
   notify:
     - Restart almanach services