anchor.diff:  # JUPYTER RELATED
   
   # Dependencies
  -RUN apt-get install -y libyaml-dev vim
   RUN chown jovyan /opt
   # Main notebook user
   USER jovyan
  
positive.code: # install dev tools
  RUN apt-get update && apt-get upgrade -y && apt-get update && \
      apt-get install -y \
          # ca-certificates \
          # AXEL is the download accelerator
          axel curl tar sudo openssh-server openssh-client rsync \
          openjdk-7-jdk
  
  # hadoop
  ENV APACHE http://www.eu.apache.org
  
negative.code: # Live slideshows
  RUN wget -q https://github.com/pdonorio/RISE/archive/master.tar.gz \
      && tar xvzf *.gz && cd *master && \
      python setup.py install && rm -rf *.gz
  
  ###############################
  # New bootstrap?
  