Simplified systemd.yml

postgresql/tasks/systemd.yml

 ---
 
-- name: Activate postgresql-9.6 service for CentOS 7
-  systemd:
-    enabled: yes
-    name: postgresql-9.6
-  when: (ansible_facts['distribution'] == "CentOS" and ansible_facts['distribution_major_version'] == "7")
-
-- name: Activate postgresql service for CentOS 8
-  systemd:
-    enabled: yes
-    name: postgresql
-  when: (ansible_facts['distribution'] == "CentOS" and ansible_facts['distribution_major_version'] == "8")
-
 - name: Set PGDATA environment variable on CentOS 7
   lineinfile:
     path: /usr/lib/systemd/system/postgresql-9.6.service
@@ -26,20 +14,20 @@
     line: 'Environment=PGDATA={{path_to_icat}}'
   when: (ansible_facts['distribution'] == "CentOS" and ansible_facts['distribution_major_version'] == "8")
 
-- name: Reload systemd daemon
-  systemd:
-    daemon_reload: yes
-
 - name: Start postgresql-9.6 service on CentOS 7
   systemd: 
     name: postgresql-9.6
     state: started
+    daemon_reload: yes
+    enabled: yes
   when: (ansible_facts['distribution'] == "CentOS" and ansible_facts['distribution_major_version'] == "7")
 
 - name: Start postgresql service on CentOS 8
   systemd:
     name: postgresql
     state: started
+    daemon_reload: yes
+    enabled: yes
   when: (ansible_facts['distribution'] == "CentOS" and ansible_facts['distribution_major_version'] == "8")
 
 ...