anchor.diff:  
   EXPOSE 22
   ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
  -CMD ["/usr/sbin/sshd","-eD", "-f", "/.sshd/user_keys/root/sshd_config"]+CMD ["/usr/sbin/sshd","-eD", "-f", "/.sshd/user_keys/root/sshd_config"]
  +
  +
  +# ********************************** STAGE 2 **********************************************
  +# later we will use the remote ones
  +FROM liehe/mlbench:mlbench-worker-dev
  +
  +# -------------------- Debug --------------------
  +RUN apt-get update && apt-get install -y vim net-tools
  
positive.code: # RUN conda install -y -c conda-forge tqdm 
  # # RUN conda install -y -c pchrapka zmq
  # # RUN conda install -c omnia termcolor
  
  
  # -------------------- Debug --------------------
  RUN apt-get update && apt-get install -y vim net-tools
  
  # -------------------- patch --------------------
  # libGL.so.1 might be lost when nvidia driver is installed
  
negative.code: FROM nvidia/cuda:9.0-cudnn7-devel-ubuntu16.04 as mlbench-worker-dev
  # TODO: reduce size and complexity of image.
  
  RUN apt-get update && apt-get install -y --no-install-recommends \
      gcc \
      make \
      libc-dev \
      musl-dev \
      openssh-server \
      g++ \
      git \
      curl \
      sudo
  