diff --git a/roles/head-node/files/compute-node-vars.yml b/roles/head-node/files/compute-node-vars.yml
new file mode 100644
index 0000000..4991bbb
--- /dev/null
+++ b/roles/head-node/files/compute-node-vars.yml
@@ -0,0 +1 @@
+fabric_iface_spec: '{{ compute_node.fabric_iface_match }}'