anchor.diff:  
   FROM base AS docker-py
   # Get the "docker-py" source so we can run their integration tests
  -ENV DOCKER_PY_COMMIT 8b246db271a85d6541dc458838627e89c683e42f
  +ENV DOCKER_PY_COMMIT ac922192959870774ad8428344d9faa0555f7ba6
   RUN git clone https://github.com/docker/docker-py.git /build \
   	&& cd /build \
   	&& git checkout -q $DOCKER_PY_COMMIT
  
positive.code: 	jq \
  	libcap2-bin \
  	libdevmapper-dev \
  	libudev-dev \
  	libsystemd-dev \
  	binutils-mingw-w64 \
  
negative.code: 	pigz \
  	python-backports.ssl-match-hostname \
  	python-dev \
  # python-cffi appears to be required for compiling paramiko on s390x/ppc64le
  	python-cffi \
  	python-mock \
  	python-pip \
  	python-requests \
  