LXD Driver Download


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These steps will show you how to set up NVIDIA acceleration inside an LXD container.


Setting up a container with GPU acceleration on NVIDIA systems is extremely easy, thanks to the libnvidia-container ebuild. This ebuild contains an abstraction layer and support tools which allow NVIDIA acceleration to be available inside containers, without having to install any NVIDIA-related tooling inside the container itself. LXD is set up to detect this framework when available and take advantage of it, providing easy access to CUDA as well as OpenGL on your host's NVIDIA graphics card.


It is assumed that you are:

  • Running Funtoo Linux 1.4 or later
  • Have the proprietary NVIDIA drivers installed and running on your host system
  • Have successfully followed the instructions on the main LXD page to start up a console-only testcontainer.

LXD Setup on Host

After setting up LXD following the instructions on the main LXD page, you will next want to emerge libnvidia-container:

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While this ebuild doesn't really require an initscript, there is a special command you need to run prior to starting LXD to get GPU acceleration to work. To make this easy and automatic, I've created an initscript just to perform this step for you. Add nvidia-container to your default runlevel:

When you run rc, lxd should restart, with nvidia-container starting after to configure everything for video acceleration. See /etc/init.d/nvidia-container for more information if you're curious about what it does.

You will also need to run this command as your regular user (we're assuming you're using a regular user account for your X session) to ensure that the container can access your X server. Additionally, you'll need to run this every time you restart your computer (you can put it in your ~/.xprofile file for convenience.)

What next? That's it! You're ready to start using GPU acceleration inside your container.

LXD Setup for Container

LXD setup for the container is also extremely easy. First, let's create a test container called nvidia-test:

Now, we'll edit its configuration to enable access to the goodies:

Make sure the following bits are added to the YAML:

In my environment, my DISPLAY environment variable is set to :1, thus I also set this variable inside the container. If yours is, for example :0, set it to that value instead. This, along with the X11-unix mapping, will allow X applications to run. Without these two things, you will still have access to the GPU inside your container, but can only use non-GUI CUDA apps.

The mygpu part automatically configures access to the NVIDIA graphics card on your system.

After the config changes, reboot your container for good measure:

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LXD Setup Inside Container


Once the LXD container is configured properly, we can now enter the container to complete configuration:

You will need to emerge nvidia-drivers and xorg-server to provide a basic environment for accelerated NVIDIA drivers to function. The following setup is suggested:

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Now, you can perform a quick investigation of your GL environment. Try running glxinfo inside your container, as root. You should see output that looks like this:

You should also be able to run glxgears and have it open an X window on your host's X display :1, using full GPU acceleration:

You should be greeted with the glxgears application running in an X window.

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We've successfully set up an unprivileged Funtoo Linux container within LXD that has the ability to run GPU-accelerated apps on the host's X session. You should be able to replicate this setup with any other Linux distributions, provided that you are able to install the NVIDIA drivers inside the container. Remember to run xhost +local: after every reboot under the user account that runs the X session, or to add this to your ~/.xprofile file so it is run every time your X session starts.

LXD Driver Download
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