anchor.diff:    && apt-get install -y esl-erlang elixir
   
   # Install Node.js
  +ENV NODE_VERSION_MAJOR=6
   RUN curl -sL https://deb.nodesource.com/setup_$NODE_VERSION_MAJOR.x | bash - && apt-get install -y nodejs
   
   # Create app user and set WORKDIR to its home dir
  
positive.code: WORKDIR $APP_HOME
  
  # Install Hex, Phoenix and Rebar
  RUN setuser app mix local.hex --force
  RUN setuser app mix archive.install --force https://github.com/phoenixframework/archives/raw/master/phoenix_new-$PHOENIX_VERSION.ez
  RUN setuser app mix local.rebar --force
  
negative.code: FROM phusion/baseimage:0.9.19
  
  # Set basic ENV vars
  ENV HOME=/root TERM=xterm-color
  
  # Elixir requires UTF-8
  RUN locale-gen en_US.UTF-8
  