anchor.diff:  RUN mkdir -p /whatsopt 
   WORKDIR /whatsopt
   
  -COPY Gemfile Gemfile.lock ./ 
  +COPY Gemfile ./ 
   
  -RUN bundle config without staging production \
  +RUN bundle config without staging,production \
   	&& bundle install --jobs 20 --retry 5
   
   COPY . ./
  
positive.code: 	&& apt-get install -y libsm6 libxext6
  
  # Thrift
  ENV THRIFT_VERSION 0.13.0
  
  RUN buildDeps=" \
  	automake \
  
negative.code: # sure you lock down to a specific version, not to `latest`!
  # See https://github.com/phusion/passenger-docker/blob/master/Changelog.md for
  # a list of version numbers.
  FROM phusion/passenger-customizable:2.0.1
  # Or, instead of the 'full' variant, use one of these:
  #FROM phusion/passenger-ruby23:<VERSION>
  #FROM phusion/passenger-ruby24:<VERSION>
  