anchor.diff:  
   RUN pip3 install -r requirements.txt
   
  -RUN rm -rf .build-deps
  +RUN apk del .build-deps
   
   RUN chown -R viperid:viperid /app/
   
  
positive.code: 
  RUN which flask
  
  CMD ["FLASK_APP=viperid.py flask", "run"]
  
negative.code: FROM alpine
  
  RUN apk add --no-cache python3 bash
  
  ENV PYTHON_PIP_VERSION 9.0.1
  
  