Install python3-psycopg2 (required by Ansible)

roles/postgresql_server/tasks/main.yml

@@ -1,8 +1,10 @@
 ---
-- name: Install postgresql
+- name: Install postgresql and psycopg2
   apt:
     update_cache: true
-    name: postgresql
+    pkg:
+      - postgresql
+      - python3-psycopg2
     state: present
   register: apt_result
   retries: 3
@@ -39,11 +41,15 @@
     - restart postgresql
 
 - name: Create databases
+  become: true
+  become_user: postgres
   postgresql_db:
-    name: "{{ item.name }}"
+    name: "{{ item }}"
   loop: "{{ postgresql_databases }}"
 
 - name: Create users
+  become: true
+  become_user: postgres
   postgresql_user:
     db: "{{ item.database }}"
     name: "{{ item.name }}"