From c002cac15738c895a44258a40ee1393a09eb555d Mon Sep 17 00:00:00 2001
From: Brendan Burns <bburns@google.com>
Date: Fri, 27 Jun 2014 21:47:01 -0700
Subject: [PATCH] Add some extra validation and checking to the local cluster
 setup.

---
 hack/local-up-cluster.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/hack/local-up-cluster.sh b/hack/local-up-cluster.sh
index 9e6fce17aa..f7f4c28dcb 100755
--- a/hack/local-up-cluster.sh
+++ b/hack/local-up-cluster.sh
@@ -23,6 +23,12 @@ if [ "$(which etcd)" == "" ]; then
 	exit 1
 fi
 
+docker ps 2> /dev/null 1> /dev/null
+if [ "$?" != "0" ]; then
+  echo "Failed to successfully run 'docker ps', please verify that docker is installed and \$DOCKER_HOST is set correctly."
+  exit 1
+fi
+
 # Stop right away if the build fails
 set -e