Setup nvidia env with a self compiled ubuntu realtime kernel

1. Setup realtime kernel.
2. Setup nvidia driver, extra steps needed when on a self-compiled rt kernel.
3. Install NVIDIA Container Toolkit
4. check nvidia status

    watch -n 1 nvidia-smi
   

5. Install docker via apt. Do the post-installation setup.
6. Run a sample for nvidia docker

install nvidia driver on self compiled rt ubuntu kernel:

gist