testpython3: build: . dockerfile: Dockerfile.py3 #command: python3 docker_links.py links: - test1 - test2 - test3 - test4 testpython2: build: . dockerfile: Dockerfile.py2 #command: python docker_links.py links: - test1 - test2 - test3 - test4 test1: image: busybox command: sleep 30 expose: - 800 - 8001/udp environment: FOO: bar # this is an uid compatible string test2: image: busybox command: sleep 30 expose: - 800/udp - 8001 test3: image: busybox command: sleep 30 environment: FOO: bar test4: image: busybox command: sleep 30