Add log for signal received

cmd/signaler_nonunix.go

@@ -18,6 +18,7 @@ func startSignaler(ctx context.Context) func() error {
 		signal.Notify(sigChan, os.Interrupt)
 		select {
 		case <-sigChan:
+			log.Info(ctx, "Received termination signal", "signal", sig)
 			return interrupted
 		case <-ctx.Done():
 			return nil

cmd/signaler_unix.go

@@ -33,6 +33,7 @@ func startSignaler(ctx context.Context) func() error {
 			select {
 			case sig := <-sigChan:
 				if sig != triggerScanSignal {
+					log.Info(ctx, "Received termination signal", "signal", sig)
 					return interrupted
 				}
 				log.Info(ctx, "Received signal, triggering a new scan", "signal", sig)