wsl: report a single "all" device to kubelet#1671
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On WSL, all GPUs are accessed through /dev/dxg. Replace the per-GPU wslDevice (which reported one device per physical GPU with individual UUIDs) with a stateless wslAllGPUsDevice that always returns UUID "all" and path "/dev/dxg". This causes the device map to collapse to a single entry per resource, so kubelet sees exactly one GPU device on WSL. When allocated, this flows naturally through all strategy paths (envvar, CDI, volume mounts) to set NVIDIA_VISIBLE_DEVICES=all, which is what nvidia-container-runtime on WSL expects. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Signed-off-by: Evan Lezar <elezar@nvidia.com>
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On WSL, there is no isolation across different GPUs on a system. This is because they are all accessed through the same
/dev/dgxdevice. This is reflected in in the CDI spec generated by the NVIDIA Container Toolkit to always generate a singlealldevice.This is incompatible with the device plugin when using a CDI-based device list strategy, since the device name reported by the plugin will include the device UUID or index.
The change in this PR ensures that the device plugin always reports a SINGLE device with a UUID and INDEX (
all) so that this is compatible with the generated CDI spec.