Allow to prevent postgresql restart

Allow to prevent postgresql restart after configuration changes
on some environments such as production.

README.md

@@ -83,6 +83,8 @@ postgresql_ctype: "en_US.UTF-8"
 postgresql_admin_user: "postgres"
 postgresql_default_auth_method: "peer"
 
+postgresql_service_restarted_state: "reloaded" # state of the service after configuration changes (e.g. restarted, reloaded).
+
 postgresql_cluster_name: main
 postgresql_cluster_reset: false
 

defaults/main.yml

@@ -28,6 +28,7 @@ postgresql_default_auth_method_hosts: "{{ 'scram-sha-256' if postgresql_version
 postgresql_service_user: "{{ postgresql_admin_user }}"
 postgresql_service_user_pgsql_profile: false
 postgresql_service_group: "{{ postgresql_admin_user }}"
+postgresql_service_restarted_state: "reloaded"
 
 postgresql_cluster_name: "main" # postgres default is ''
 postgresql_cluster_reset: false

handlers/main.yml

@@ -3,5 +3,5 @@
   - name: restart postgresql
     service:
       name: "{{ postgresql_service_name }}"
-      state: restarted
+      state: "{{ postgresql_service_restarted_state }}"
       enabled: yes