anchor.diff:      rm -fr /var/lib/apt/lists
   
   WORKDIR /app
  -RUN ln -fs /tmp /app/tmp && ln -fs /tmp /home/app && \
  +RUN ln -fs /tmp /app/tmp && \
       echo 'IRB.conf[:HISTORY_FILE] = "/tmp/irb_history"' > irb.rc
   COPY --from=builder /usr/bin/node* /usr/bin/
   COPY --from=builder /usr/lib/nodejs/ /usr/lib/nodejs/
  
positive.code: COPY --from=builder /app ./
  
  RUN groupadd -g 1001 app && \
      useradd -u 1001 -g app app
  USER 1001
  CMD ["bundle", "exec", "puma"]
  
negative.code: 
  WORKDIR /app
  RUN ln -fs /tmp /app/tmp && \
      ln -fs /tmp /app/asset-manager-tmp
  RUN echo 'install: --no-document' >> /etc/gemrc && gem update --system --silent && gem cleanup
  COPY Gemfile Gemfile.lock .ruby-version /app/
  # Make the installed version of bundler match the one that wrote Gemfile.lock.
  