Add disable-imex-channel-creation feature flag

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

Author: elezar

cmd/nvidia-container-runtime-hook/main.go

@@ -95,6 +95,9 @@ func doPrestart() {
 	if cli.LoadKmods {
 		args = append(args, "--load-kmods")
 	}
+	if hook.Features.DisableImexChannelCreation.IsEnabled() {
+		args = append(args, "--no-create-imex-channels")
+	}
 	if cli.NoPivot {
 		args = append(args, "--no-pivot")
 	}

internal/config/features.go

@@ -22,6 +22,9 @@ type features struct {
 	MOFED    *featureMofed    `toml:"mofed,omitempty"`
 	NVSWITCH *featureNvswitch `toml:"nvswitch,omitempty"`
 	GDRCopy  *featureGdrCopy  `toml:"gdrcopy,omitempty"`
+	// DisableImexChannelCreation ensures that the implicit creation of
+	// requested IMEX channels is skipped when invoking the nvidia-container-cli.
+	DisableImexChannelCreation *feature `toml:"disable-imex-channel-creation,omitempty"`
 }
 
 type feature bool