anchor.diff:  
   COPY . /app
   WORKDIR "/app"
  -ENV NODE_ENV production
   
   RUN cd /app/ && \
       # remove dev stuff
  
positive.code:     apt-get -y purge --auto-remove build-essential automake python && \
      rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
  
  CMD ["node", "/app/server/index"]
  
negative.code:     # build
      apt-get update -y && \
      apt install -y libssl-dev build-essential automake python libcurl3-dev && \
      npm install && \
      npm run build && \
      # prepare for production
  