anchor.diff:      rm -rf /root/.cache && \
       rm -rf /var/cache/apk/*
   
  -ENTRYPOINT ["/init"]
  -
  -CMD []
  +EXPOSE 5000
  
positive.code: RUN apk update && \
      apk upgrade && \
      apk add \
          curl \
          nano \
          python3 \
          sqlite && \
      python3 -m ensurepip && \
      rm -r /usr/lib/python*/ensurepip && \
      pip3 install --upgrade pip setuptools && \
      rm -r /root/.cache && \
      curl -sL https://github.com/just-containers/s6-overlay/releases/download/v${S6_VERSION}/s6-overlay-amd64.tar.gz -o /tmp/s6.tgz && \
      tar xzf /tmp/s6.tgz -C / && \
      rm -f /tmp/s6.tgz && \
      mkdir -p \
          /etc/services.d/hxl \
          /srv/db \
  
negative.code:     mv docker_files/hxl_run /etc/services.d/hxl/run && \
      mv docker_files/app.py . && \
      pip3 install --upgrade \
          gunicorn \
          python-dateutil \
          python-io-wrapper \
          requests-cache \
          unidecode \
          xlrd && \
      pip3 install --upgrade -r requirements.txt && \
      apk add --virtual .gevent-deps \
          build-base \
  