From edd907c0434ef2529e609f4365c7c358db6aa0a0 Mon Sep 17 00:00:00 2001
From: Colin Hebert <hebert.colin@gmail.com>
Date: Sun, 31 Jan 2016 08:31:30 +1100
Subject: [PATCH] Catch potential custom network errors in docker

---
 resource_docker_container_funcs.go | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/resource_docker_container_funcs.go b/resource_docker_container_funcs.go
index 39d2c09f..44cd07f3 100644
--- a/resource_docker_container_funcs.go
+++ b/resource_docker_container_funcs.go
@@ -162,8 +162,11 @@ func resourceDockerContainerCreate(d *schema.ResourceData, meta interface{}) err
 	if v, ok := d.GetOk("networks"); ok {
 		connectionOpts := dc.NetworkConnectionOptions{Container: retContainer.ID}
 
-		for _, network := range v.(*schema.Set).List() {
-			client.ConnectNetwork(network.(string), connectionOpts)
+		for _, rawNetwork := range v.(*schema.Set).List() {
+			network := rawNetwork.(string)
+			if err := client.ConnectNetwork(network), connectionOpts); err != nil {
+				return fmt.Errorf("Unable to connect to network '%s': %s", network, err)
+			}
 		}
 	}