anchor.diff: -FROM ubuntu:14.04
  +FROM debian:jessie
   MAINTAINER "Konrad Kleine"
   
   USER root
  
positive.code: ENV START_SCRIPT /root/start-apache.sh
  
  ############################################################
  # Install and configure webserver software and Vim (sorry,
  # I cannot live without it)
  ############################################################
  
  RUN apt-get -y update
  RUN apt-get -y install \
        apache2 \
        libapache2-mod-auth-kerb \
        libapache2-mod-proxy-html \
        vim
  
  RUN a2enmod proxy
  RUN a2enmod proxy_http
  
negative.code: # installed app artifacts.
  ############################################################
  
  RUN mkdir -pv $WWW_DIR
  RUN apt-get -y install \
        git \
        nodejs \
        nodejs-legacy \
        npm \
        gettext-base \ 
        --no-install-recommends && \
      cd $SOURCE_DIR && \
      npm install -g yo && \
      npm install && \
  