From 9dc65ca480281fb2f6a2ada7ced1103f8ce0952b Mon Sep 17 00:00:00 2001
From: mariusz <wrotki@msn.com>
Date: Sat, 18 Jul 2015 17:04:02 -0700
Subject: [PATCH] Avoid nil pointer dereference in (*Cluster).createContainer

Swarm.Create car return nil,nil when refresh fails
due to network hiccup

Signed-off-by: Mariusz Borsa <mborsa@polyverse.io>
---
 cluster/swarm/cluster.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cluster/swarm/cluster.go b/cluster/swarm/cluster.go
index e824ab67f0..5e9b048490 100644
--- a/cluster/swarm/cluster.go
+++ b/cluster/swarm/cluster.go
@@ -130,6 +130,10 @@ func (c *Cluster) createContainer(config *cluster.ContainerConfig, name string,
 			return nil, err
 		}
 
+		if container == nil {
+			return nil, errors.New("Container created but refresh didn't report it back")
+		}
+
 		st := &state.RequestedState{
 			ID:     container.Id,
 			Name:   name,