anchor.diff:          /root/.bash_history \
           /usr/sbin/policy-rc.d \
           /var/cache/apt/archives/*.deb \
  -    apt-get clean
  +    && apt-get clean
   
  -# Update locate cache
  -RUN updatedb
  -
  -# Update aptitude cache
  -RUN apt-get update
  +# Update caches
  +- locate
  +- aptitude
  +RUN updatedb &&
  +    apt-get update
  
positive.code: ADD ./patches/ /
  
  # Configure locales
  RUN locale-gen en_US.UTF-8 &&
      locale-gen fr_FR.UTF-8 &&
      dpkg-reconfigure locales
  
  # Clean
  
negative.code: FROM ubuntu-debootstrap:trusty
  
  # Prevent init scripts from running during install/update
  # policy-rc.d (for most scripts)
  RUN echo '#!/bin/sh\nexit 101' > /usr/sbin/policy-rc.d && \
      chmod +x /usr/sbin/policy-rc.d
  
  # Install packages
  ADD ./patches/etc/apt/sources.list /etc/apt/sources.list
  RUN apt-get -q update && \
      apt-get -q upgrade && \
      apt-get install -y -q \
  	cron \
  	curl \
  