func registerWithProxy(controller clients.Controller, confNotValidErr error) error { if confNotValidErr != nil { // Config not valid, can't register logrus.WithError(confNotValidErr).Error("Validation of config failed") return confNotValidErr } for { err := controller.Register() if err != nil { if isRetryable(err) { time.Sleep(time.Second * 5) continue } else { return err } } return err } }