Fixed crach when no XDS Server connected.

Signed-off-by: Sebastien Douheret <sebastien.douheret@iot.bzh>

1 files changed, 3 insertions, 0 deletions

diff --git a/main.go b/main.go
index 72a9d22..668738c 100644
--- a/main.go
+++ b/main.go
@@ -389,6 +389,9 @@ func XdsConnInit(ctx *cli.Context) error {
 	if err := XdsConfigGet(&xdsConf); err != nil {
 		return cli.NewExitError("ERROR while getting XDS config: "+err.Error(), 1)
 	}
+	if len(xdsConf.Servers) < 1 {
+		return cli.NewExitError("No XDS Server connected", 1)
+	}
 	svrCfg := xdsConf.Servers[XdsServerIndexGet()]
 	if (serverURL != "" && svrCfg.URL != serverURL) || !svrCfg.Connected {
 		Log.Infof("Update XDS Server config: serverURL=%v, svrCfg=%v", serverURL, svrCfg)