Add the following to your docker-compose.yml file:
apache:
    image: yappabe/apache-php
    links:
        - mysql
    volumes_from:
        - app
    environment:
        DOCUMENT_ROOT: /var/www/app/web
        ENVIRONMENT: dev
- DOCUMENT_ROOT defaults to /var/www/app/web
 - ENVIRONMENT defaults to dev
 
Append one of the available version numbers to the image name.
apache:
    image: yappabe/apache-php:5.4
- 5.6
 - 5.5
 - 5.4
 - 5.3
 - 5.2