I put a Drupal Base image on Docker Hub that sets up a correct environment for Drupal 7 and 8. Use the tag for the appropriate version of Drupal. Currently, tag/version 7 is available and tag/version 8 is on its way shortly.
To pull the Drupal 7 environment, run:
docker pull xandermar/drupal-base:7
The containers are built with:
- Drush 8
- Compass (SASS)