diff --git a/db-test-common/overlay/etc/hiera/data/group.yaml b/db-test-common/overlay/etc/hiera/data/group.yaml
new file mode 100644
index 0000000..888884e
--- /dev/null
+++ b/db-test-common/overlay/etc/hiera/data/group.yaml
@@ -0,0 +1,8 @@
+---
+mariadb_clients:
+  - 89.47.191.64
+  - 192.121.208.223
+mariadb_cluster_nodes:
+  - 89.47.190.31
+  - 192.121.208.16
+  - 89.45.237.51