From 72a563f618fafb43e858f8a0367b586a5151688f Mon Sep 17 00:00:00 2001
From: Deyuan Deng <deyuan@google.com>
Date: Sat, 9 May 2015 15:20:45 -0400
Subject: [PATCH] Use error type from docker go-client instead of string

---
 pkg/kubelet/dockertools/docker.go | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/pkg/kubelet/dockertools/docker.go b/pkg/kubelet/dockertools/docker.go
index c101f3f9371..5b54e545aac 100644
--- a/pkg/kubelet/dockertools/docker.go
+++ b/pkg/kubelet/dockertools/docker.go
@@ -157,9 +157,7 @@ func (p dockerPuller) IsImagePresent(image string) (bool, error) {
 	if err == nil {
 		return true, nil
 	}
-	// This is super brittle, but its the best we got.
-	// TODO: Land code in the docker client to use docker.Error here instead.
-	if err.Error() == "no such image" {
+	if err == docker.ErrNoSuchImage {
 		return false, nil
 	}
 	return false, err