anchor.diff:  # START/STOP
   # ==========
   #   $ docker start postgresql
  -#   $ docker stop postgresql+#   $ docker stop postgresql
  
positive.code: # Use baseimage-docker's init system.
  CMD ["/sbin/my_init"]
  
  
  ##################################################################################################
  ## START CUSTOMIZATION
  
  VOLUME ["/srv/pgdata"]
  
  # Install PostgreSQL 9.3.
  
negative.code: # sure you lock down to a specific version, not to `latest`!
  # See https://github.com/phusion/baseimage-docker/blob/master/Changelog.md for
  # a list of version numbers.
  FROM phusion/baseimage:0.9.15
  
  # Set correct environment variables.
  ENV HOME /root
  