Running vispy inside docker and not being able to access OpenGL drivers

[adeelabbas]

I am using following Dockerfile to create a very simple setup with Vispy:

FROM ubuntu:18.04
# Dependencies for glvnd and X11.
RUN apt-get update \
  && apt-get install -y -qq --no-install-recommends \
    libglvnd0 \
    libgl1 \
    libglx0 \
    libegl1 \
    libxext6 \
    libx11-6 \
  && rm -rf /var/lib/apt/lists/*
# Env vars for the nvidia-container-runtime.
ENV NVIDIA_VISIBLE_DEVICES all
ENV NVIDIA_DRIVER_CAPABILITIES graphics,utility,compute

RUN apt-get update && apt-get install -y python3 python3-pip
RUN apt-get update && apt-get install -y fontconfig

RUN ln -sf /usr/bin/python3 /usr/local/bin/python

RUN python -m pip install --upgrade setuptools
RUN python -m pip install --upgrade pip

RUN python -m pip install numpy cython PyQt5==5.11.3 vispy

RUN apt-get update   && apt-get install -y -qq glmark2 mesa-utils

ENV QT_QPA_PLATFORM=offscreen

I run following command to create docker image:

docker build --no-cache -t opengl-vispy-issue-ubuntu .

Then, I run following commad that exercises simple vispy command to print system info:

docker run --entrypoint python opengl-vispy-issue-ubuntu -c "import vispy; print(vispy.sys_info())"

The GL version field is empty which suggests that OpenGL driver was not properly initialized. Can someone please help with initializing OpenGL driver in this docker image?

[djhoese]

Please look at other issues related to docker or the EGL backend or offscreen rendering. I haven't used docker with vispy myself, but there are others who have and various solutions are spread throughout the issues I think. I'm sorry I don't have time right now to track the answers down myself. That said, I think you'll need to tell docker about your GPU in some way. I don't think a docker container has access to your GPU by default and I'm not sure environment variables (NVIDIA_*) do anything to help that. The other option would be to look at offscreen rendering where you setup a fake display inside docker and render to that. That is usually all CPU rendering though.