version: '2'

services:
  app:
    image: abakpress/ruby-app:$RUBY_IMAGE_TAG
    environment:
      - BUNDLE_PATH=/bundle/$DOCKER_RUBY_VERSION
      - SSH_AUTH_SOCK=/ssh/auth/sock
    command: bash
    volumes:
      - .:/app
      - ssh_data:/ssh:ro

volumes:
  ssh_data:
    external: true