Disable filesystem sharing for the non-confidential NVIDIA runtime-rs
handler and use the EROFS snapshotter as its Kubernetes image-layer
transport. This moves the runtime class toward a guest-owned storage
model instead of relying on virtio-fs for container image layers and
writable cache volumes.
Configure kata-deploy's NVIDIA GPU values to install EROFS and select
it for the qemu-nvidia-gpu-runtime-rs Kubernetes handler. Use
memory-backed writable layers and dm-verity for lower-layer integrity.
Adjust the NVIDIA GPU Kubernetes CI matrix so the non-confidential
runtime-rs job exercises EROFS, while the Go and TEE jobs keep their
existing snapshotter choices.
Keep the Docker smoke test path on virtio-fs. The EROFS setup is
targeted at the Kubernetes runtime-rs handler, where containerd can use
the EROFS snapshotter for image layers.
Adjust the runtime-rs NIM test selection and manifests closer to the
TEE case, where filesystem sharing is already disabled and cache
storage is guest-owned and ephemeral.
Signed-off-by: Manuel Huber <manuelh@nvidia.com>
Assisted-by: OpenAI Codex <codex@openai.com>
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