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

roles/docker-gitea/templates/docker-compose.yml.j2

@@ -27,18 +27,11 @@ services:
       - data:/data
       - /etc/timezone:/etc/timezone:ro
       - /etc/localtime:/etc/localtime:ro
-{% if not enable_central_database %}
-    depends_on:
-      - database
-{% include 'templates/docker-mariadb-service.yml.j2' %}
-{% endif %}
+{% include 'templates/docker-networks-for-container.yml.j2' %}
+{% include 'templates/docker-depends-on-central-database.yml.j2' %}
 
 volumes:
   data:
-{% if not enable_central_database %}
-  database:
-{% endif %}
+{% include 'templates/docker-database-volume.yml.j2' %}
 
-networks:
-  default:
-    driver: bridge
+{% include 'templates/docker-networks-for-role.yml.j2' %}