build our own libvirt bridge
diff --git a/roles/config-virt/defaults/main.yml b/roles/config-virt/defaults/main.yml
index 8a1faf1..a134d20 100644
--- a/roles/config-virt/defaults/main.yml
+++ b/roles/config-virt/defaults/main.yml
@@ -1,4 +1,6 @@
 ---
 # roles/config-virt/defaults/main.yml
 
-mgmtbr_name: virbr0
+virt_nets:
+  - mgmtbr
+