Add nvidia gpu config info

Dockerfile

@@ -14,7 +14,7 @@ ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update \
     # 
     # Install software and needed libraries
-    && apt-get -y install libglib2.0-bin pulseaudio-utils cups-client x11-utils \
+    && apt-get -y install module-init-tools libglib2.0-bin pulseaudio-utils cups-client x11-utils \
     #
     # Assign audio group to non-root user
     && usermod -a -G audio ${USER_NAME} \

README.md

@@ -79,7 +79,6 @@ prepare_docker_webcam_host_sharing() {
 
 prepare_docker_gpu_host_sharing() {
   # GPU support (Direct Rendering Manager)
-  # Only available if non propietry drivers used
   [ -d /dev/dri ] && DEVICES+=" --device /dev/dri"
 }
 
@@ -132,6 +131,25 @@ This way, the internal user UID an group GID are changed to the current host use
 
 Functions prepare_docker_dbus_host_sharing, prepare_docker_xdg_runtime_dir_host_sharing, prepare_docker_sound_host_sharing, prepare_docker_webcam_host_sharing, prepare_docker_gpu_host_sharing, prepare_docker_printer_host_sharing, prepare_docker_x11_host_sharing and prepare_docker_hostname_host_sharing allows sharing your host resources with the running container as GUI apps can interact with your host system as they where installed in the host.
 
+## Setup GPU
+
+To make an Nvidia GPU available in the docker container, the following steps have to be taken:
+
+On the host, check your driver version:
+
+    # you might have to install this package:
+    $ sudo apt-get install mesa-utils
+    $ glxinfo |grep "OpenGL version"
+    OpenGL version string: 4.6.0 NVIDIA 390.129
+
+In this example, the driver version is "390.129". Now, you have install exactly the same driver in the container:
+
+    export VERSION=390.129
+    wget http://us.download.nvidia.com/XFree86/Linux-x86_64/$VERSION/NVIDIA-Linux-x86_64-$VERSION.run
+    chmod +x NVIDIA-Linux-x86_64-$VERSION.run
+    apt-get install -y module-init-tools
+    ./NVIDIA-Linux-x86_64-$VERSION.run -a -N --ui=none --no-kernel-module
+
 ## Connect
 
 You can connect to the running container like this:

run.sh

@@ -57,7 +57,6 @@ prepare_docker_webcam_host_sharing() {
 
 prepare_docker_gpu_host_sharing() {
   # GPU support (Direct Rendering Manager)
-  # Only available if non propietry drivers used
   [ -d /dev/dri ] && DEVICES+=" --device /dev/dri"
 }