anchor.diff:  RUN apt-get -y install unzip
   RUN apt-get -y install curl 
   RUN apt-get -y install vim 
  -#RUN apt-get -y install openssl libssl-dev
  -#RUN apt-get -y install wget tmux 
   
   ############### Python3 ##############################
   RUN curl -o /miniconda.sh https://repo.continuum.io/miniconda/Miniconda3-4.2.12-Linux-x86_64.sh
   RUN /bin/bash /miniconda.sh -b -p /miniconda
   RUN PATH=/miniconda/bin conda install -y pyzmq
   RUN PATH=/miniconda/bin conda install -c https://conda.binstar.org/menpo opencv3 
  -
  -###################################################### install unreal engine 4
  -# copied dependencies from UnrealEngine/Engine/Build/BatchFiles/Linux/Setup.sh to avoid need to use sudo in line 106
  -#RUN apt-get install -y \
  -#mono-xbuild \
  -#       mono-dmcs \
  -#       libmono-microsoft-build-tasks-v4.0-4.0-cil \
  -#       libmono-system-data-datasetextensions4.0-cil \
  -#       libmono-system-web-extensions4.0-cil \
  -#       libmono-system-management4.0-cil \
  -#       libmono-system-xml-linq4.0-cil \
  -#       libmono-corlib4.5-cil \
  -#       libmono-windowsbase4.0-cil \
  -#       libmono-system-io-compression4.0-cil \
  -#       libmono-system-io-compression-filesystem4.0-cil \
  -#       libmono-system-runtime4.0-cil \
  -#       mono-devel \
  -#       clang-3.8
   
   
   ######################################################
  
positive.code: RUN mkdir /local
  COPY ./ure4.tgz /local/
  RUN chown -R docker:docker /local
  #RUN chown -R docker:docker /UnrealEngine
  USER docker
  RUN cd /local && tar xzf ure4.tgz
  RUN cd /local/UnrealEngine && ./Setup.sh && ./GenerateProjectFiles.sh && make
  
  ######## nvidia part ######
  #identify nvidia driver by running nvidia-smi
  #download from http://www.nvidia.com/download/driverResults.aspx/111596/en-us
  #ADD NVIDIA-Linux-x86_64-352.63.run /tmp/NVIDIA-DRIVER.run
  USER root
  #ARG GDRIVER=nvidia-367
  ARG GDRIVER
  RUN DEBIAN_FRONTEND=noninteractive apt-get install -y $GDRIVER
  RUN update-locale LANG=C LANGUAGE=C LC_ALL=C LC_MESSAGES=POSIX
  
negative.code: # Base docker image
  FROM ubuntu:xenial
  
  RUN apt-get -y update
  RUN apt-get -y install build-essential
  