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

roles/docker-mybb/tasks/main.yml

@@ -1,15 +1,18 @@
 ---
+- 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: "include tasks create-proxy-with-domain-replace.yml"
   include_tasks: create-proxy-with-domain-replace.yml
   loop: "{{ domains + [source_domain] }}"
   loop_control:
     loop_var: domain
 
-- name: create database in central MariaDB
-  include_role:
-    name: docker-mariadb
-  when: enable_central_database | bool
-
 - name: "create {{docker_compose_instance_confd_directory}} and parent directories"
   file:
     path: "{{docker_compose_instance_confd_directory}}"

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

@@ -26,15 +26,8 @@ services:
     - "{{docker_compose_instance_confd_directory}}:{{target_mount_conf_d_directory}}:ro"
     - "data:/var/www/html:ro"
 
-{% if not enable_central_database %}
-{% include 'templates/docker-mariadb-service.yml.j2' %}
-{% endif %}
+{% include 'templates/docker-{{ database_type }}-service.yml.j2' %}
 
 volumes:
-{% if not enable_central_database %}
-  database:
-{% endif %}
-  data:
-networks:
-  default:
-    driver: bridge
+{% include 'templates/docker-database-volume.yml.j2' %}
+  data:

roles/docker-mybb/vars/main.yml

@@ -1,11 +1,8 @@
 ---
 docker_compose_project_name:  	                "mybb"
-docker_compose_instance_directory:              "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
 docker_compose_instance_confd_directory:        "{{docker_compose_instance_directory}}conf.d/"
 docker_compose_instance_confd_defaultconf_file: "{{docker_compose_instance_confd_directory}}default.conf"
 target_mount_conf_d_directory:                  "{{nginx_servers_directory}}"
 source_domain:                                  "mybb.{{top_domain}}"
-database_host:      	                          "database"
-database_databasename:                          "{{docker_compose_project_name}}"
-database_username:  	                          "{{docker_compose_project_name}}"
-database_password:                              "{{mybb_database_password}}"
+database_password:                              "{{mybb_database_password}}"
+database_type:                                  "mariadb"