anchor.diff: -FROM python:3.5
  +FROM ubuntu:xenial
   
   MAINTAINER Ubiwhere
   
   # install dependencies
  +RUN	apt-get update && apt-get -y install curl
   RUN     apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8EC0731023C1F15B \
  -        && echo "deb http://registry.sonata-nfv.eu:8080 ubuntu-trusty main" | tee -a /etc/apt/sources.list \
  +        && echo "deb http://repo.sonata-nfv.eu ubuntu-xenial main" | tee -a /etc/apt/sources.list \
           && curl -sL https://deb.nodesource.com/setup_8.x | bin/bash - \
           && apt-get update \
           && apt-get install -y sonata-cli nodejs
  
positive.code: RUN   chmod 755 /sbin/entrypoint.sh
  
  ENTRYPOINT ["/sbin/entrypoint.sh"]
  
negative.code: 
  # build web gui
  WORKDIR /usr/son-validate-gui
  RUN	apt-get install make
  RUN     npm install request \
  	&& npm install \
          && npm install -g http-server \
  