diff --git a/roles/acl-devstack-files/defaults/main.yaml b/roles/acl-devstack-files/defaults/main.yaml
new file mode 100644
index 0000000..14265f0
--- /dev/null
+++ b/roles/acl-devstack-files/defaults/main.yaml
@@ -0,0 +1 @@
+devstack_data_dir: /opt/stack/data