anchor.diff:  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 \
  
positive.code: FROM alpine:3.6
  
  ARG S6_VERSION=1.21.2.1
  
  WORKDIR /srv/www
  
  
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 \
  