From d08713d1d6c516e5570a7e94039870b1c8be43b1 Mon Sep 17 00:00:00 2001
From: guoguodan <58167141+guoguodan@users.noreply.github.com>
Date: Fri, 24 Sep 2021 00:37:12 +0800
Subject: [PATCH] Update config.go (#491)

it maybe null point
---
 cmd/yurthub/app/config/config.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cmd/yurthub/app/config/config.go b/cmd/yurthub/app/config/config.go
index b7f16e8e73e..62fab1fa2de 100644
--- a/cmd/yurthub/app/config/config.go
+++ b/cmd/yurthub/app/config/config.go
@@ -164,6 +164,9 @@ func Complete(options *options.YurtHubOptions) (*YurtHubConfiguration, error) {
 }
 
 func parseRemoteServers(serverAddr string) ([]*url.URL, error) {
+	if serverAddr == "" {
+		return make([]*url.URL, 0), fmt.Errorf("--server-addr should be set for hub agent")
+	}
 	servers := strings.Split(serverAddr, ",")
 	us := make([]*url.URL, 0, len(servers))
 	remoteServers := make([]string, 0, len(servers))