docker-devpi/docker-compose-build.yml

# docker socket shared with the host
# docker creds shared with the host
docker19:
  image: docker:1.9.1
  env_file: vars.env
  volumes:
    - /var/run/docker.sock:/var/run/docker.sock
    - ~/.docker/config.json:/root/.docker/config.json
    - ./:/data