anchor.diff:  ENV DOCKER_COMPOSE_VERSION 1.9.0
   ENV NODEJS_VERSION 7.2.0
   ENV DOCKER_MACHINE_VERSION 0.8.2
  +
  +
   
   # basic packages
   RUN apt-get update -qq && apt-get install -qqy \
  
positive.code: EXPOSE 8080
  
  CMD ["/usr/bin/supervisord"]
  
  
negative.code: ENV PATH $PATH:/nodejs/bin
  # needed global npm deps
  RUN npm install -g node-gyp  && \
      npm install -g gulp \
      npm install -g nightwatch 
  
  #
  # process manager
  