Introduce backup of postgres databases.

docker-backup.yaml

@@ -26,10 +26,7 @@
         label: "{{ item[1].name }}"
 
     - name: Create backup of postgres database and store to backup directory
-      ansible.builtin.debug:
-        msg:
-        - '{{ item[1] }}' # Database configuration @see: when
-        - '{{ item[0].name }}' # Container name
+      shell: docker exec {{ item[1].container }} pg_dump -U {{ item[1].user }} {{ item[1].name }} > {{ backup_location }}{{ item[0].name }}/{{ item[1].container }}-{{ ansible_date_time.iso8601_basic_short }}.sql
       when: item[1].type == "psql"
       loop: "{{ containers | subelements('database', skip_missing=True) }}"
       loop_control: