From b5913ab43e05f01fcf4e473f79af8b38d26b4442 Mon Sep 17 00:00:00 2001
From: OHTAKE Tomohiro <ohtake.tomohiro@jp.fujitsu.com>
Date: Fri, 8 Apr 2016 18:27:08 +0900
Subject: [PATCH] Make shell script compatible with older bash

---
 cluster/openstack/util.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cluster/openstack/util.sh b/cluster/openstack/util.sh
index cacf86004c5..266ff111493 100644
--- a/cluster/openstack/util.sh
+++ b/cluster/openstack/util.sh
@@ -91,7 +91,7 @@ function create-stack() {
   echo "[INFO] Execute commands to create Kubernetes cluster"
   # It is required for some cloud provider like CityCloud where swift client has different credentials
   source "${ROOT}/openrc-swift.sh"
-  if [[ ! -v OS_PROJECT_ID ]]; then
+  if [[ -z "${OS_PROJECT_ID}" ]]; then
     SWIFT_PROJECT_ID="${OS_TENANT_ID}"
   else
     SWIFT_PROJECT_ID="${OS_PROJECT_ID}"