https://github.com/kubernetes/kubernetes/blob/87f9429087d4e31201412548517d36e83abebc8d/pkg/controller/cronjob/cronjob_controller.go

cronjob_controller.go

// from: https://github.com/kubernetes/kubernetes/blob/87f9429087d4e31201412548517d36e83abebc8d/pkg/controller/cronjob/cronjob_controller.go#L89-L97

// Run the main goroutine responsible for watching and syncing jobs.
func (jm *CronJobController) Run(stopCh <-chan struct{}) {
	defer utilruntime.HandleCrash()
	klog.Infof("Starting CronJob Manager")
	// Check things every 10 second.
	go wait.Until(jm.syncAll, 10*time.Second, stopCh)
	<-stopCh
	klog.Infof("Shutting down CronJob Manager")
}