Implemented vars, tasks and templates for central database setup until mastodon role

roles/docker-attendize/tasks/main.yml

@@ -1,4 +1,12 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: receive {{ mail_interface_domain }} certificate
   command: certbot certonly --agree-tos --email {{ administrator_email }} --non-interactive --webroot -w /var/lib/letsencrypt/ -d {{ mail_interface_domain }}
 
@@ -11,10 +19,5 @@
     dest: "{{nginx_servers_directory}}{{domain}}.conf"
   notify: restart nginx
 
-- name: Create database in central MariaDB
-  include_role:
-    name: docker-mariadb
-  when: enable_central_database | bool
-
 - name: "include tasks update-repository-with-docker-compose.yml"
   include_tasks: update-repository-with-docker-compose.yml