Beef up the example inventory

Signed-off-by: martin f. krafft <madduck@madduck.net>
diff --git a/examples/classes/debian/suite/oldstable.yml b/examples/classes/debian/suite/oldstable.yml
new file mode 100644
index 0000000..3464554
--- /dev/null
+++ b/examples/classes/debian/suite/oldstable.yml
@@ -0,0 +1,8 @@
+classes:
+  - debian
+parameters:
+  debian_suite: oldstable
+  apt:
+    include_security: yes
+    include_updates: no
+    include_proposed_updates: no