Fix docker building (#13681)

### What problem does this PR solve?

1. Refactor go server log
2. Update docker building, since nginx config should be set according to
the deployment.

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

---------

Signed-off-by: Jin Hai <haijin.chn@gmail.com>

cmd/server_main.go

@@ -246,7 +246,7 @@ func startServer(config *server.Config) {
 				local.SetAdminStatus(0, "")
 			} else {
 				local.SetAdminStatus(1, err.Error())
-				logger.Warn(fmt.Sprintf(err.Error()))
+				//logger.Warn(fmt.Sprintf(err.Error()))
 			}
 		})
 		heartbeatReporter.Start()