Allow container runtime executable path to be specified

This change adds support for specifying the container runtime
executable path. This can be used if, for example, there are
two containerd or crio executables and a specific one must be used.

Signed-off-by: Evan Lezar <elezar@nvidia.com>

tools/container/container.go

@@ -38,6 +38,11 @@ const (
 type Options struct {
 	Config string
 	Socket string
+	// ExecutablePath specifies the path to the container runtime executable.
+	// This is used to extract the current config, for example.
+	// If a HostRootMount is specified, this path is relative to the host root
+	// mount.
+	ExecutablePath string
 	// EnabledCDI indicates whether CDI should be enabled.
 	EnableCDI     bool
 	RuntimeName   string