contrib: fast return if runner-group server is not found (#143)

If runner-group server is not found, let's return error instead of
retrying. Maybe server is still running, but data loss happens in ETCD
side. It's impossible to get result in this case. Fast-return is that
only we can do.

Signed-off-by: Wei Fu <weifu@microsoft.com>

Author: fuweid

contrib/internal/utils/utils.go

@@ -264,6 +264,14 @@ func DeployRunnerGroup(ctx context.Context,
 		// Using 1 min as timeout is to ensure we can get result in time.
 		data, err := kr.RGResult(ctx, 1*time.Minute)
 		if err != nil {
+			// FIXME(weifu): If the pod is not found, we should fast
+			// return. However, it's hard to maintain error string
+			// match. We should use specific commandline error code
+			// or use package instead of binary call.
+			if strings.Contains(err.Error(), `pods "runnergroup-server" not found`) {
+				return nil, err
+			}
+
 			klog.ErrorS(err, "failed to fetch runner group's result")
 			continue
 		}