anchor.diff:  ADD deploy/nginx/webapp.conf /etc/nginx/sites-enabled/webapp.conf
   ADD deploy/nginx/rails-env.conf /etc/nginx/main.d/rails-env.conf
   
  +#   Install AWS tools
  +RUN apt-get update
  +RUN apt-get install zip -y
  +RUN curl "https://s3.amazonaws.com/aws-cli/awscli-bundle.zip" -o "awscli-bundle.zip"
  +RUN unzip awscli-bundle.zip
  +RUN ./awscli-bundle/install -i /usr/local/aws -b /usr/local/bin/aws
  +
   #   Run Bundle in a cache efficient way
   WORKDIR /tmp
   ADD Gemfile /tmp/
  
positive.code: #   Set correct environment variables.
  ENV HOME /root
  
  #   Initialize database as part of container startup
  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
  
  #   Use baseimage-docker's init process.
  CMD ["/sbin/my_init"]
  
  #   Build system and git.
  #   NOTE  - passenger docker documentation incorrectly lists "pb_build" as the build directory
  #RUN /build/utilities.sh
  #   Ruby support.
  #RUN /build/ruby2.1.sh
  #   Python support.
  #RUN /build/python.sh
  #   Node.js and Meteor support.
  #RUN /build/nodejs.sh
  
  #   Expose Nginx HTTP service
  EXPOSE 80
  
negative.code: 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
  