anchor.diff:  WORKDIR     /app
   
   # Keep dependencies on its own Docker FS Layer
  -# To avoid dependencies reinstall at each code change
  +# To avoid reinstall of all dependencies each time code changes
   COPY        Pipfile* setup-pip.sh /app/
   RUN         ./setup-pip.sh \
           &&  pipenv install --system --skip-lock
  
positive.code: 
  # set environment variables
  ENV         PYTHONIOENCODING="UTF-8"
  ARG         DEBIAN_FRONTEND="noninteractive"
  
  RUN         apk add --no-cache --update \
                      curl \
  
negative.code: COPY        frontend /app/frontend/
  
  RUN         cd /app/frontend \
          &&  make dev \
          &&  make version \
          &&  make build \
          &&  mkdir -p /www \
  