Test .env with additional formulas

Change-Id: I80d7f3acff76e47b03a47a929f21c02db688c756
diff --git a/classes/cluster/os-ha-contrail/.env b/classes/cluster/os-ha-contrail/.env
new file mode 100644
index 0000000..753d68a
--- /dev/null
+++ b/classes/cluster/os-ha-contrail/.env
@@ -0,0 +1 @@
+EXTRA_FORMULAS="barbican"