nowFunc func() time.Time, // typically Kubelet.clock.Now
	runtimeErrorsFunc func() error, // typically Kubelet.runtimeState.runtimeErrors
	networkErrorsFunc func() error, // typically Kubelet.runtimeState.networkErrors
	storageErrorsFunc func() error, // typically Kubelet.runtimeState.storageErrors
	cmStatusFunc func() cm.Status, // typically Kubelet.containerManager.Status
	nodeShutdownManagerErrorsFunc func() error, // typically kubelet.shutdownManager.errors.