docker-compose.yml

version: '2'
services:
    
    db8:
        image: mysql
        environment:
            MYSQL_USER: drupal
            MYSQL_PASSWORD: drupal
            MYSQL_DATABASE: drupal8
            MYSQL_ROOT_PASSWORD: drupal
        volumes:
            - ./data8:/var/lib/mysql

    db7:
        image: mysql
        environment:
            MYSQL_USER: drupal
            MYSQL_PASSWORD: drupal
            MYSQL_DATABASE: drupal7
            MYSQL_ROOT_PASSWORD: drupal
        volumes:
            - ./data7:/var/lib/mysql

    drupal8:
        build: 
            dockerfile: Dockerfile-d8
            context: .
        volumes:
            - ./d7:/var/www/d7
            - ./d8:/var/www/d8
            - ./apache-conf/d8.conf:/etc/apache2/sites-enabled/000-default.conf
            - ./docker/php7/local.ini:/usr/local/etc/php/conf.d/local.ini
        ports:
            - 8250:80
        links:
            - db8

    drupal7:
        build: 
            dockerfile: Dockerfile-d7
            context: .
        volumes:
            - ./d7:/var/www/d7
            - ./apache-conf/d7.conf:/etc/apache2/sites-enabled/000-default.conf
            - ./docker/php/local.ini:/usr/local/etc/php/conf.d/local.ini
        ports:
            - 8251:80
        links:
            - db8