moving virtual labs to new templates && system update

Change-Id: I713b73cbfe1a8f168dfd6dcaf5fd4ec34df47758
diff --git a/classes/cluster/virtual-mcp-ocata-dvr/openstack/compute.yml b/classes/cluster/virtual-mcp-ocata-dvr/openstack/compute.yml
index 6d75d6c..4e4a03e 100644
--- a/classes/cluster/virtual-mcp-ocata-dvr/openstack/compute.yml
+++ b/classes/cluster/virtual-mcp-ocata-dvr/openstack/compute.yml
@@ -2,6 +2,7 @@
 - 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.neutron.compute.cluster
 - system.ceilometer.agent.cluster