From 12e1911aabc35128548bdcf0be03cc03eb56f11f Mon Sep 17 00:00:00 2001
From: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>
Date: Thu, 26 Jul 2018 01:02:41 +0000
Subject: [PATCH] kata-agent: Improve error message.

If the grpc connection check fails we only return the grpc error.
To make more clear what failed add more information to the error.

Signed-off-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>
---
 virtcontainers/kata_agent.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/virtcontainers/kata_agent.go b/virtcontainers/kata_agent.go
index 831862af22..4d6ecfb82d 100644
--- a/virtcontainers/kata_agent.go
+++ b/virtcontainers/kata_agent.go
@@ -1229,8 +1229,12 @@ func (k *kataAgent) disconnect() error {
 	return nil
 }
 
+// check grpc server is serving
 func (k *kataAgent) check() error {
 	_, err := k.sendReq(&grpc.CheckRequest{})
+	if err != nil {
+		err = fmt.Errorf("Failed to check if grpc server is working: %s", err)
+	}
 	return err
 }