expect = "%s_net_fqdn" % network_role
for vn_ref in virtual_network_refs:
param = heat.nested_get(vn_ref, "get_param")
+
+ # skip if not connecting via get_param
+ if not param:
+ return None
+
if param == expect:
param_type = heat.nested_get(heat.parameters, param, "type")
if param_type != "string":