Dockerfile for headless-gl. You also need to run Docker container in "privileged" mode, assign X11 auth volume on the container, and possibly give Xauth access for call from outside.

Dockerfile

# Build stage
FROM nvidia/opengl:1.0-glvnd-devel-ubuntu20.04 as builder

# Install node 14.0
RUN apt-get update -y && \
    apt-get install -y curl gnupg ca-certificates && \
    curl -sL https://deb.nodesource.com/setup_14.x | bash - && \
    apt-get install -y nodejs

# See: https://github.com/stackgl/headless-gl#ubuntudebian
RUN apt-get update -y && \
    apt-get install -y build-essential python libxi-dev libglu-dev libglew-dev pkg-config git

WORKDIR /build

COPY package*.json .
COPY my-threejs-app my-threejs-app

RUN npm install --production

COPY tsconfig.json ./
COPY src src

RUN npm run build

# Build headless-gl natively as the prebuilt binary is not compatible
# See https://github.com/stackgl/headless-gl/issues/65#issuecomment-252742795

RUN git clone https://github.com/stackgl/headless-gl.git && \
    cd headless-gl && \
    git submodule init && \
    git submodule update && \
    npm install && \
    npm run rebuild

# We will later copy headless-gl/build/Release/webgl.node into runtime layer

# Runtime stage, install and copy only what's needed to run
FROM nvidia/opengl:1.0-glvnd-devel-ubuntu20.04

# Install node 14.0
RUN apt-get update -y && \
    apt-get install -y curl gnupg ca-certificates && \
    curl -sL https://deb.nodesource.com/setup_14.x | bash - && \
    apt-get install -y nodejs

# See: https://github.com/stackgl/headless-gl#ubuntudebian
RUN apt-get update -y && \
    apt-get install -y build-essential python libxi-dev libglu-dev libglew-dev pkg-config git

EXPOSE 80

WORKDIR /app

COPY fonts fonts
COPY --from=builder /build/node_modules node_modules
COPY --from=builder /build/tsconfig.json tsconfig.json
COPY --from=builder /build/dist dist
COPY --from=builder /build/package.json package.json
COPY --from=builder /build/headless-gl/build/Release/webgl.node node_modules/gl/build/Release/webgl.node

ENV DISPLAY :0
CMD [ "node", "dist/src/index.js" ]

@stepancar that is the part in the description:

You also need to run Docker container in "privileged" mode, assign X11 auth volume on the container, and possibly give Xauth access for call from outside.

And I don't remember it all by memory and takes long to explain. So essentially it is how and why X has a server client model. They talk via sockets (in this case by a named pipe, in /var folder, hence the volume mounting) despite being on the same machine (i.e. the host with the docker container/pod).

you don't need it because you are running rendering without GPU?

I ran it with GPU on production, software rendering for test containers. In the end we wrote a non-javascript based application to do the rendering.

@neuro-sys Thank you a lot! I was able to link headless-gl with egl provided by nvidia image. I removed x-server from our host, which simplified our infrastructure

@stepancar Glad to be helpful, and good to hear you were able to use EGL. Feel free to share links or describe how you did it in case someone else finds their way here with the same need.

Sure!
This is a comment with explanation stackgl/headless-gl#116 (comment)