Fix keystone_region -> openstack_region
diff --git a/keystone/client/service/swift-s3.yml b/keystone/client/service/swift-s3.yml
index 7bc1373..5880487 100644
--- a/keystone/client/service/swift-s3.yml
+++ b/keystone/client/service/swift-s3.yml
@@ -16,7 +16,7 @@
             swift-s3:
               type: object-store
               description: S3 Service (swift)
-              region: ${_param:keystone_region}
+              region: ${_param:openstack_region}
               endpoints:
                 - region: ${_param:openstack_region}
                   public_address: ${_param:cluster_public_host}