anchor.diff:  # Install Powerstrip Calico Adapter dependencies.
   RUN pip install -r /adapter/requirements.txt
   
  -RUN apt-get update && \
  -    apt-get install -qy \
  -        python-zmq \
  -        python-netaddr && \
  -    apt-get clean && \
  -    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
  -
   RUN curl https://dl.dropboxusercontent.com/u/4550074/calico-common_0.12.1_all.deb -o common.deb && dpkg -i common.deb && rm common.deb
   RUN curl https://dl.dropboxusercontent.com/u/4550074/calico-felix_0.12.1_all.deb -o felix.deb && dpkg -i felix.deb && rm felix.deb
  
positive.code:         python-docopt \
          python-pip \
          python-pyasn1 \
          python-gevent && \
      apt-get clean && \
      rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
  
negative.code: #    echo "Pin: origin binaries.projectcalico.org" >> /etc/apt/preferences && \
  #    echo "Pin-Priority: 1001" >> /etc/apt/preferences
  
  RUN apt-get update && \
      apt-get install -qy \
  #        calico-felix \
          bird \
          bird6 \
          build-essential \
          ipset \
          iptables \
          libffi-dev \
  