anchor.diff:  ENV SPARK_VERSION 1.4.1
   ENV MESOS_VERSION 0.23.0
   ENV SPARK_JOBSERVER_BRANCH v0.5.2
  -	
  +
   # SBT install
   RUN wget https://dl.bintray.com/sbt/debian/sbt-$SBT_VERSION.deb && \
       dpkg -i sbt-$SBT_VERSION.deb && \
  
positive.code: # Cleanup files, folders and variables
  RUN unset SPARK_VERSION_STRING && \
      unset SPARK_DOWNLOAD_URL && \
  	unset SPARK_JOBSERVER_BRANCH && \
  	unset SPARK_JOBSERVER_BUILD_HOME
  
  EXPOSE 8090 9999
  
  #ENTRYPOINT ["/app/server_start.sh"]
negative.code: RUN wget http://downloads.mesosphere.io/master/ubuntu/14.04/mesos_$MESOS_VERSION-1.0.ubuntu1404_amd64.deb && \
      dpkg -i mesos_$MESOS_VERSION-1.0.ubuntu1404_amd64.deb && \
      rm mesos_$MESOS_VERSION-1.0.ubuntu1404_amd64.deb
  
  # Spark ENV vars
  ENV SPARK_VERSION_STRING spark-$SPARK_VERSION-bin-hadoop2.6
  ENV SPARK_DOWNLOAD_URL http://d3kbcqa49mib13.cloudfront.net/$SPARK_VERSION_STRING.tgz
  