diff --git a/hosts b/hosts
index 4f6fe62..5b09f77 100644
--- a/hosts
+++ b/hosts
@@ -4,5 +4,13 @@
 leaf-1
 leaf-2
 
+[head]
+172.42.42.38
+
+[compute]
+
+[all:vars]
+ansible_ssh_user=ubuntu
+
 [switches:vars]
 ansible_ssh_user=root