OpenAcc docker image with gcc 9, cuda 10, OpenCV on ubuntu 18.04

Dockfile

FROM nvidia/cuda:10.1-devel-ubuntu18.04
MAINTAINER Harold

# GCC 9
RUN apt-get update && apt-get install -y software-properties-common
RUN add-apt-repository ppa:ubuntu-toolchain-r/test && \
    apt update && \
    apt install -y gcc-9-offload-nvptx g++-9 && \
    update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 60 --slave /usr/bin/g++ g++ /usr/bin/g++-9
    
# OpenCV
RUN apt-get install -y libopencv-dev

#install v3.12.2 cmake
ADD https://cmake.org/files/v3.12/cmake-3.12.2-Linux-x86_64.sh /cmake-3.12.2-Linux-x86_64.sh
RUN mkdir /opt/cmake && \
    sh /cmake-3.12.2-Linux-x86_64.sh --prefix=/opt/cmake --skip-license && \
    ln -s /opt/cmake/bin/cmake /usr/local/bin/cmake

WORKDIR /root/ACC