feat(watchdog): initialize watchdog connection and sync running instances

sys/core.go

@@ -394,11 +394,11 @@ func IsInstanceRunning(instanceID int) error {
 		if strings.Contains(outputStr, "RUNNING") {
 			postLog.Info(fmt.Sprintf("[IsInstanceRunning] Windows service %s is running", instance.Name))
 			return nil
-		} else {
-			postLog.Info(fmt.Sprintf("[IsInstanceRunning] Windows service %s is stopped", instance.Name))
-			return nil
 		}
 
+		postLog.Info(fmt.Sprintf("[IsInstanceRunning] Windows service %s is stopped", instance.Name))
+		return fmt.Errorf("service %s is not running", serviceName)
+
 	case "systemd":
 		cmd := exec.Command("systemctl", "status", serviceName)
 
@@ -465,13 +465,13 @@ func IsInstanceRunning(instanceID int) error {
 
 		if strings.Contains(outputStr, "is running") {
 			return nil
-		} else {
-			return nil
 		}
 
+		return fmt.Errorf("service %s is not running", serviceName)
+
 	default:
 		postLog.Error(fmt.Sprintf("[IsInstanceRunning] Unsupported init system: %s", initType))
-		return nil
+		return fmt.Errorf("unsupported init system: %s", initType)
 	}
 }