diff --git a/keycloak/server/single.yml b/keycloak/server/single.yml
new file mode 100644
index 0000000..504532b
--- /dev/null
+++ b/keycloak/server/single.yml
@@ -0,0 +1,3 @@
+classes:
+- service.keycloak.server
+- system.keycloak.server.realm.drivetrain