postfix; move some tasks to be handlers

roles/postfix/handlers/main.yml

@@ -6,5 +6,22 @@
 - name: reload postfix
   command: postfix reload
 
+- name: postmap additional files
+  command: postmap /etc/postfix/{{item}}
+  with_items:
+    - access_client
+    - access_sender
+    - access_sender-post-filter
+    - access_helo
+    - access_recipient
+    - transport
+    - relocated
+    - relay_transport_map
+    - domains
+    - mailman_compat
+
+- name: update aliases db
+  command: postalias /etc/postfix/aliases
+
 - name: postmap relay_passwords
   command: postmap /etc/postfix/relay_passwords

roles/postfix/tasks/main.yml

@@ -15,6 +15,8 @@
     - aliases
     - relay_transport_map
     - users.pcre
+  notify:
+    - update aliases db
 
 - name: install additional files
   copy: src={{item}} dest=/etc/postfix/{{item}} owner=root group=root mode=0644
@@ -29,23 +31,8 @@
     - relocated
     - domains
     - mailman_compat
-
-- name: update aliases db
-  command: postalias /etc/postfix/aliases
-
-- name: postmap additional files
-  command: postmap /etc/postfix/{{item}}
-  with_items:
-    - access_client
-    - access_sender
-    - access_sender-post-filter
-    - access_helo
-    - access_recipient
-    - transport
-    - relocated
-    - relay_transport_map
-    - domains
-    - mailman_compat
+  notify:
+    - postmap additional files
 
 - name: create dhparam 2048
   command: openssl dhparam -out /etc/postfix/dh2048.pem 2048 creates=/etc/postfix/dh2048.pem