anchor.diff:  
   RUN python setup.py install
   
  +WORKDIR /tmp
  +
   CMD ["/bin/bash"]
  
positive.code: MAINTAINER Joseph Jacob "Joseph.Jacob@jpl.nasa.gov"
  
  # Install packages needed for builds
  
  WORKDIR /
  
  RUN yum install -y gcc python-devel
  
  
negative.code: 
  # Retrieve NEXUS code and build it.
  
  WORkDIR /
  
  RUN git clone https://github.com/dataplumber/nexus.git
  
  RUN sed -i 's/,webservice.algorithms.doms//g' /nexus/analysis/webservice/config/web.ini && \
  