have vm's use apt-cache
diff --git a/roles/apt-cacher-ng/templates/02apt-cacher-ng.j2 b/roles/apt-cacher-ng/templates/02apt-cacher-ng.j2
index b07ba88..46740fb 100644
--- a/roles/apt-cacher-ng/templates/02apt-cacher-ng.j2
+++ b/roles/apt-cacher-ng/templates/02apt-cacher-ng.j2
@@ -1 +1 @@
-Acquire::http { Proxy "http://{{ apt_cacher_ip }}:{{ apt_cacher_port }}"; };
+Acquire::http { Proxy "http://{{ apt_cacher_name }}:{{ apt_cacher_port }}"; };