diff --git a/modules/openstack_project/files/sources.list.xenial b/modules/openstack_project/files/sources.list.xenial
new file mode 100644
index 0000000000..0ffcc4358f
--- /dev/null
+++ b/modules/openstack_project/files/sources.list.xenial
@@ -0,0 +1,13 @@
+# This file is kept updated by puppet, adapted from
+# https://help.ubuntu.com/lts/serverguide/configuration.html
+
+deb http://us.archive.ubuntu.com/ubuntu xenial main restricted
+deb http://us.archive.ubuntu.com/ubuntu xenial-updates main restricted
+deb http://us.archive.ubuntu.com/ubuntu xenial universe
+deb http://us.archive.ubuntu.com/ubuntu xenial-updates universe
+deb http://us.archive.ubuntu.com/ubuntu xenial multiverse
+deb http://us.archive.ubuntu.com/ubuntu xenial-updates multiverse
+deb http://us.archive.ubuntu.com/ubuntu xenial-backports main restricted universe multiverse
+deb http://security.ubuntu.com/ubuntu xenial-security main restricted
+deb http://security.ubuntu.com/ubuntu xenial-security universe
+deb http://security.ubuntu.com/ubuntu xenial-security multiverse