Add update-nvidia-params hook to CDI spec

Signed-off-by: Evan Lezar <[email protected]>

Author: elezar

pkg/nvcdi/driver-nvml.go

@@ -106,6 +106,10 @@ func NewDriverLibraryDiscoverer(logger logger.Interface, driver *root.Driver, nv
 			nvidiaCDIHookPath,
 		),
 		updateLDCache,
+		discover.CreateNvidiaCDIHook(
+			nvidiaCDIHookPath,
+			"update-nvidia-params",
+		),
 	)
 
 	return d, nil

tests/e2e/nvidia-container-toolkit_test.go

@@ -166,4 +166,23 @@ var _ = Describe("docker", Ordered, func() {
 			Expect(referenceOutput).To(Equal(out4))
 		})
 	})
+
+	Describe("Disabling device node creation", Ordered, ContinueOnFailure, func() {
+		BeforeAll(func(ctx context.Context) {
+			_, _, err := r.Run("docker pull ubuntu")
+			Expect(err).ToNot(HaveOccurred())
+		})
+
+		It("should work with nvidia-container-runtime-hook", func(ctx context.Context) {
+			output, _, err := r.Run("docker run --rm -i --runtime=runc --gpus=all ubuntu bash -c \"grep ModifyDeviceFiles: /proc/driver/nvidia/params\"")
+			Expect(err).ToNot(HaveOccurred())
+			Expect(output).To(Equal("ModifyDeviceFiles: 0"))
+		})
+
+		It("should work with automatic CDI spec generation", func(ctx context.Context) {
+			output, _, err := r.Run("docker run --rm -i --runtime=nvidia -e NVIDIA_VISIBLE_DEVICES=runtime.nvidia.com/gpu=all ubuntu bash -c \"grep ModifyDeviceFiles: /proc/driver/nvidia/params\"")
+			Expect(err).ToNot(HaveOccurred())
+			Expect(output).To(Equal("ModifyDeviceFiles: 0"))
+		})
+	})
 })