var shutdownHandler chan os.Signal

// SetupSignalHandler registered for SIGTERM and SIGINT. A stop channel is returned
// which is closed on one of these signals. If a second signal is caught, the program
// is terminated with exit code 1.
// Only one of SetupSignalContext and SetupSignalHandler should be called, and only can
// be called once.
func SetupSignalHandler() <-chan struct{} {
	return SetupSignalContext().Done()
}

	metrics.Version.
		With(metrics.OperatorVersionLabel.Value(version.Info.String())).
		Record(1.0)

	log.Info("Starting the Cmd.")

	// Start the Cmd
	if err := mgr.Start(signals.SetupSignalHandler()); err != nil {
		log.Fatalf("Manager exited non-zero: %v", err)
	}

		fmt.Fprintf(os.Stderr, "%v\n", err)
		os.Exit(1)
	}
	cliflag.PrintFlags(cmd.Flags())

	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()
	go func() {
		stopCh := server.SetupSignalHandler()
		<-stopCh
		cancel()
	}()

	cc, sched, err := Setup(ctx, opts, registryOptions...)
	if err != nil {
		return err
	}
	// add feature enablement metrics