anchor.diff:  
   EXPOSE 80
   
  -# Run test script.
  +# Make start.sh executable
   RUN chmod 755 /start.sh
  
positive.code: RUN mkdir /var/log/supervisor/
  
  # Sudo.
  RUN echo %sudo	ALL=NOPASSWD: ALL >> /etc/sudoers
  RUN mkdir /var/run/sshd
  
  # Scripts.
  
negative.code: 
  # Serverspec
  RUN gem install bundler -v 1.6.3 2>/dev/null 
  RUN gem install serverspec rake 2>/dev/null
  
  # PHPENV
  RUN git clone https://github.com/CHH/phpenv.git /tmp/phpenv
  RUN /bin/bash /tmp/phpenv/bin/phpenv-install.sh
  RUN scp /tmp/phpenv/extensions/* $HOME/.phpenv/libexec/
  
  RUN echo 'eval "$(phpenv init -)"' >> /$HOME/.bashrc
  