anchor.diff:  # Update the APT cache
   RUN sed -i.bak 's/main$/main universe/' /etc/apt/sources.list
   RUN apt-get update
  -RUN apt-get upgrade -y
  +# RUN DEBIAN_FRONTEND=noninteractive apt-get upgrade -qqy
   
   # Install and setup project dependencies
  -RUN apt-get install -y curl lsb-release supervisor openssl-dev openssh-server  build-essential
  +RUN apt-get install -qqy curl lsb-release supervisor libssl-dev openssh-server  build-essential
   
   RUN mkdir -p /var/run/sshd
   RUN mkdir -p /var/log/supervisor
  
positive.code: 
  # Install Erlangs
  
  RUN wget http://packages.erlang-solutions.com/erlang/esl-erlang/FLAVOUR_1_general/esl-erlang_16.b.3-1~ubuntu~precise_amd64.deb
  RUN dpkg -i esl-erlang_16.b.3-1~ubuntu~precise_amd64.deb
  RUN apt-get install -qqy libpam0g-dev
  
negative.code: 
  
  
  RUN sed -i -e 0,/"enabled, false"/{s/"enabled, false"/"enabled, true"/} /etc/riak/riak.conf
  RUN sed -i.bak 's/search = off/search = on/' /etc/riak/riak.conf
  RUN sed -i.bak 's/127.0.0.1/0.0.0.0/' /etc/riak/riak.conf
  RUN echo "ulimit -n 4096" >> /etc/default/riak
  
  
  