version: '3' services: application: image: joomla logging: driver: journald environment: JOOMLA_DB_HOST: "{{database_host}}:3306" JOOMLA_DB_USER: "{{database_username}}" JOOMLA_DB_PASSWORD: "{{database_password}}" JOOMLA_DB_NAME: "{{database_databasename}}" restart: always links: - database volumes: - data:/var/www/html ports: - "127.0.0.1:{{http_port}}:80" {% include 'templates/docker-mariadb-service.yml.j2' %} volumes: database: data: