anchor.diff:  RUN bundle exec rake assets:precompile
   
   EXPOSE 3000
  -CMD ["bundle", "exec", "rails", "server", "-b", "0.0.0.0"]
  +CMD ["bundle", "exec", "rails", "server", "-p", "$PORT", "-b", "0.0.0.0"]
  
positive.code: ENV AWS_SECRET_ACCESS_KEY dummy
  
  COPY Gemfile Gemfile.lock /usr/src/app/
  RUN bundle config --global frozen 1
  RUN bundle install --deployment
  
  COPY package.json yarn.lock /usr/src/app/
  
negative.code: RUN cmake .
  RUN make install
  
  RUN bundle config --global frozen 1
  
  RUN mkdir -p /usr/src/app
  RUN useradd -m www
  RUN chown www /usr/src/app
  USER www
  
  WORKDIR /usr/src/app
  
  ENV RAILS_ENV $RAILS_ENV
  