dirty workaround to make aaa lab passing

Change-Id: I82e26f1e4a5a5bf2bbe5e4d64a72b3e6e3b60309
diff --git a/classes/cluster/aaa-ha-freeipa/aaa/linux-system-single/debian.yml b/classes/cluster/aaa-ha-freeipa/aaa/linux-system-single/debian.yml
new file mode 100644
index 0000000..b6d0b2b
--- /dev/null
+++ b/classes/cluster/aaa-ha-freeipa/aaa/linux-system-single/debian.yml
@@ -0,0 +1,10 @@
+classes:
+- system.linux.system.single
+
+# DEBIAN family overrides
+parameters:
+  linux:
+    system:
+      package:
+        python-msgpack:
+          version: latest