Added draft for central postgres and mariadb. variables and networks still need to be adapted

roles/docker-wordpress/tasks/main.yml

@@ -8,6 +8,11 @@
   vars:
     nginx_docker_reverse_proxy_extra_configuration: "client_max_body_size {{wordpress_max_upload_size}};"
 
+- name: create database in central MariaDB
+  include_role:
+    name: docker-mariadb
+  when: enable_central_database | bool
+
 - name: "create {{docker_compose_instance_directory}}"
   file:
     path: "{{docker_compose_instance_directory}}"