anchor.diff:                         nginx language-pack-en sudo cron vim \
                          psmisc rsyslog &&\
       dpkg-divert --local --rename --add /sbin/initctl &&\
  -    sh -c "test -f /sbin/initctl || ln -s /bin/true /sbin/initctl" &&\
  -    apt-get -y install haproxy openssh-server
  +    sh -c "test -f /sbin/initctl || ln -s /bin/true /sbin/initctl"
   
  -RUN apt-get -y install runit monit &&\
  -    apt-get clean &&\
  -    dpkg-reconfigure locales &&\
  +RUN apt-get -y install haproxy openssh-server \
  +                       runit monit &&\
  +    apt-get clean
  +
  +RUN dpkg-reconfigure locales &&\
       locale-gen en_US.UTF-8 &&\
       /usr/sbin/update-locale LANG=en_US.UTF-8
   
  -RUN mkdir /src && cd /src && git clone https://github.com/sstephenson/ruby-build.git &&\
  +RUN echo 'gem: --no-document' >> /usr/local/etc/gemrc &&\
  +    mkdir /src && cd /src && git clone https://github.com/sstephenson/ruby-build.git &&\
       cd /src/ruby-build && ./install.sh &&\
  -    cd / && rm -rf /src/ruby-build && ruby-build 2.0.0-p451 /usr/local
  -
  -RUN echo 'gem: --no-document' >> /usr/local/etc/gemrc &&\
  +    cd / && rm -rf /src/ruby-build && ruby-build 2.0.0-p481 /usr/local &&\
       gem update --system &&\
       gem install bundler
  -
  -ENV LC_ALL en_US.UTF-8
  
positive.code: # vi: set ft=sh :
  
  ##
  # Ruby and SSH container
  #
  # Docker version 0.10.0
  #
  FROM ubuntu:12.04
  MAINTAINER Alberto Grespan "http://twitter.com/albertogg"
  
negative.code:     apt-add-repository "deb http://archive.ubuntu.com/ubuntu $(lsb_release -sc) main universe" &&\
      add-apt-repository "deb http://archive.ubuntu.com/ubuntu $(lsb_release -sc)-updates main universe" &&\
      add-apt-repository -y ppa:nginx/stable &&\
      apt-get -y update --fix-missing &&\
      apt-mark hold initscripts &&\
      apt-get -y upgrade
  
  RUN apt-get -y install build-essential python-dev git-core curl wget \
                         libxslt-dev zlib1g-dev libcurl4-openssl-dev \
  