version: '2'
name: test-project
services:
  wordpress:
    extends:
      file: docker-compose_v2.yml
      service: wordpress
    stateful: true
    environment:
      WORDPRESS_DB_PASSWORD: ${project}_secret
    instances: 2
    deploy:
      strategy: ha
    networks:
      - front-tier
      - back-tier
  mysql:
    extends:
      file: docker-compose_v2.yml
      service: mysql
    stateful: true
    environment:
      - MYSQL_ROOT_PASSWORD=${project}_secret
    volumes:
      - mysql-data:/var/lib/mysql
    networks:
      - back-tier
volumes:
  mysql-data:
    driver: local
networks:
  front-tier:
    driver: bridge
  back-tier:
    driver: bridge