moving virtual labs to new templates && system update

Change-Id: I713b73cbfe1a8f168dfd6dcaf5fd4ec34df47758
diff --git a/classes/cluster/sl_os_contrail/openstack/compute.yml b/classes/cluster/sl_os_contrail/openstack/compute.yml
index 702ce7c..bbc62d7 100755
--- a/classes/cluster/sl_os_contrail/openstack/compute.yml
+++ b/classes/cluster/sl_os_contrail/openstack/compute.yml
@@ -3,6 +3,7 @@
 - system.linux.system.repo.mcp.openstack
 - system.linux.system.repo.mcp.extra
 - system.linux.system.repo.saltstack.xenial
+- system.linux.network.hosts
 - system.nova.compute.cluster
 - system.opencontrail.compute.cluster
 - system.opencontrail.client.cluster