anchor.diff:  RUN cd /opt/ \
   && tar -zxvf /tmp/apache-maven-3.3.9-bin.tar.gz
   
  +RUN chmod -R 777 /opt
  +
  +RUN rm /bin/sh && ln -s /bin/bash /bin/sh && rm /bin/sh.distrib && ln -s /bin/bash /bin/sh.distrib
  +
  +USER virgo
  +
   ENV PATH=/opt/apache-maven-3.3.9/bin/:$PATH
   
   RUN mkdir -p /opt/geppetto
  
positive.code: 
  COPY startup.sh /opt/VFB/startup.sh
  
  RUN chmod -R 777 /opt/VFB
  
  USER virgo
  
  
  ENTRYPOINT ["/opt/VFB/startup.sh"]
  
negative.code: ENV BRANCH=master
  
  ENV SERVER_HOME=/home/virgo/
  
  RUN cd /opt/geppetto && \
  echo cloning required modules: && \
  