Postgres:

Pinned a version so that watchdog does not upgrade versions.
Made the host directory configurable

postgres/playbook.yml

@@ -14,6 +14,12 @@
         source: pull
         force_source: yes
 
+    - name: Ensure Nextcloud Directory exists
+      file:
+          path: "/var/lib/{{ host_directory }}"
+          state: directory
+          mode: 0755
+
     - name: Create postgres container
       docker_container:
         name: "{{ postgres_name }}"
@@ -24,8 +30,8 @@
           POSTGRES_USER: "{{ pg_user }}"
           POSTGRES_PASSWORD: "{{ pg_password }}"
           POSTGRES_DB: 'postgres'
-          PGDATA: '/var/lib/postgresql/data/pgdata'
+          PGDATA: "{{ data_location }}/pgdata"
         published_ports:
           - 5432:5432
         volumes:
-          - /var/lib/postgresql/data:/var/lib/postgresql/data
+          - "/var/lib/{{ host_directory }}/data:{{ data_location }}"