Update pool when pools.yaml is changed

Move designate-mange pool update command to handlers
since we need to run it only when pools.yaml is changed.
We also don't need to restart designate service, when pools.yaml is
updated.

Change-Id: I7f3d6bd777ce5a6e0f3372f0f6e29cb5499d5419

handlers/main.yml

@@ -59,6 +59,14 @@
     - "Restart designate services"
     - "venv changed"
 
+- name: Perform Designate pools update
+  command: "{{ designate_bin }}/designate-manage pool update --file /etc/designate/pools.yaml"
+  become: yes
+  become_user: "{{ designate_system_user_name }}"
+  changed_when: false
+  when: designate_pools_yaml is defined
+  notify: Restart designate services
+
 - name: Start services
   systemd:
     name: "{{ item.service_name }}"

tasks/designate_db_sync.yml

@@ -18,11 +18,3 @@
   become: yes
   become_user: "{{ designate_system_user_name }}"
   changed_when: false
-
-- name: Perform a Designate DNS pools update
-  command: "{{ designate_bin }}/designate-manage pool update"
-  become: yes
-  become_user: "{{ designate_system_user_name }}"
-  changed_when: false
-  when: designate_pools_yaml is defined
-  notify: Restart designate services

tasks/designate_post_install.yml

@@ -69,6 +69,7 @@
     content: "{{ designate_pools_yaml | to_nice_yaml }}"
     dest: "/etc/designate/pools.yaml"
   when: designate_pools_yaml is defined
+  notify: Perform Designate pools update
 
 - name: Create Designate rndc key file
   template: