From be2d4cc1c9eac7a663fcc1ab41396cee39460009 Mon Sep 17 00:00:00 2001
From: Stephen Jennings <stephen.g.jennings@gmail.com>
Date: Wed, 23 Aug 2017 09:10:53 -0700
Subject: [PATCH] Check for an existing docker_network before trying to modify
 it (#24048)

This eliminates a TypeError in check mode.
---
 lib/ansible/modules/cloud/docker/docker_network.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/ansible/modules/cloud/docker/docker_network.py b/lib/ansible/modules/cloud/docker/docker_network.py
index f5d37a503c..3c0f581ba1 100644
--- a/lib/ansible/modules/cloud/docker/docker_network.py
+++ b/lib/ansible/modules/cloud/docker/docker_network.py
@@ -308,6 +308,8 @@ class DockerNetworkManager(object):
                 self.results['changed'] = True
 
     def disconnect_missing(self):
+        if not self.existing_network:
+            return
         containers = self.existing_network['Containers']
         if not containers:
             return