anchor.diff:  
   # Home & log dirs should be exportable
   VOLUME ["/home/researcher", "/var/log"]
  -
  -
  
positive.code: RUN rpm -Uvh http://nginx.org/packages/centos/7/noarch/RPMS/$( \
    curl http://nginx.org/packages/centos/7/noarch/RPMS/ | \
    grep -Po 'nginx-release.*?\.rpm' | head -1)
    
  # Install
  # - supervisord for monitoring
  # - nginx for reverse-proxying
  
negative.code: # Base image for other DIT4C platform images
  FROM centos:centos7
  MAINTAINER t.dettrick@uq.edu.au
  
  # Remove yum setting which blocks man page install
  RUN sed -i'' 's/tsflags=nodocs/tsflags=/' /etc/yum.conf
  
  # Update all packages
  RUN yum upgrade -y
  