Format all Nix files using the officially approved formatter,
making the CI check introduced in the previous commit succeed:
nix-build ci -A fmt.check
This is the next step of the of the [implementation](https://github.com/NixOS/nixfmt/issues/153)
of the accepted [RFC 166](https://github.com/NixOS/rfcs/pull/166).
This commit will lead to merge conflicts for a number of PRs,
up to an estimated ~1100 (~33%) among the PRs with activity in the past 2
months, but that should be lower than what it would be without the previous
[partial treewide format](https://github.com/NixOS/nixpkgs/pull/322537).
Merge conflicts caused by this commit can now automatically be resolved while rebasing using the
[auto-rebase script](8616af08d9/maintainers/scripts/auto-rebase).
If you run into any problems regarding any of this, please reach out to the
[formatting team](https://nixos.org/community/teams/formatting/) by
pinging @NixOS/nix-formatting.
This will ensure that all requirements are met when the
nvidia-container-toolkit is enabled in order to generate the CDI specs
for the machine.
Also, if `config.virtualisation.docker.rootless.enable` is true,
automatically enable the CDI feature if the Docker version > 25 for
the rootless installation.
- `mount-nvidia-binaries`: this option allows users to avoid mounting
nvidia binaries on the container.
- `mount-nvidia-docker-1-directories`: this option allows users to
avoid mounting `/usr/local/nvidia/lib{,64}` on containers.
Add the NixOS option `hardware.nvidia-container-toolkit-cdi-generator.enable`.
This enables the ability to expose GPU's in containers for container
runtimes that support the Container Device Interface (CDI)
Remove `cdi.static` and `cdi.dynamic.nvidia.enable` attributes.
