anchor.diff:  RUN mkdir /home/app/webapp
   ADD . /home/app/webapp
   RUN chmod -R 0777 /home/app/webapp
  +
  +#   Run python setup
  +RUN apt-get -y -q install python3-setuptools
  +WORKDIR /home/app/webapp/gruve
  +RUN python3 setup.py develop
   
   #   Install npm
   WORKDIR /home/app/webapp
  
positive.code: ADD deploy/nginx/webapp.conf /etc/nginx/sites-enabled/webapp.conf
  ADD deploy/nginx/rails-env.conf /etc/nginx/main.d/rails-env.conf
  
  #   Run Bundle in a cache efficient way
  WORKDIR /tmp
  ADD Gemfile /tmp/
  
negative.code: #   Set correct environment variables.
  ENV HOME /root
  
  #   Load startup scripts
  RUN mkdir -p /etc/my_init.d
  ADD deploy/boot/initdb.sh /etc/my_init.d/initdb.sh
  RUN chmod +x /etc/my_init.d/initdb.sh
  ADD deploy/boot/load_secrets.sh /etc/my_init.d/load_secrets.sh
  RUN chmod +x /etc/my_init.d/load_secrets.sh
  
  #   Use baseimage-docker's init process.
  CMD ["/sbin/my_init"]
  
  #   Expose Nginx HTTP service
  EXPOSE 80
  