added handling for sighup (issues reload command to server)

internal/service/service.go

@@ -57,19 +57,33 @@ func RunService() {
       }
   }()
 
+	// Separate Channel for handling SIGHUP
+  hupCh := make(chan os.Signal, 1)
+  signal.Notify(hupCh, syscall.SIGHUP)
+
 	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
 	defer stop()
 	<- ctx.Done()
 
+  for {
+		select {
+    case <-hupCh:
+         	log.Println("Sending reload signal to Server Process")
+          if _, err := stdin.Write([]byte("reload\n")); err != nil {
+            log.Printf("write error: %v", err)
+          }
+    case <-ctx.Done():
          	log.Println("Sending stop signal to Server Process")
           if _, err := stdin.Write([]byte("stop\n")); err != nil {
             log.Printf("write error: %v", err)
           }
-  //stdin.Close()
-
         	if err := cmd.Wait(); err != nil {
                 log.Printf("child exit: %v", err)
           }
-
 					log.Println("Shutdown completed")
+          return
+    }
+  }
+
+
 }