Fix horizon in mcp virtual labs

Change-Id: I13ec1e2386c777fa65231937a2082a049fc6c273
diff --git a/classes/cluster/os-ha-ovs/openstack/proxy.yml b/classes/cluster/os-ha-ovs/openstack/proxy.yml
index bb775ca..1f296ae 100644
--- a/classes/cluster/os-ha-ovs/openstack/proxy.yml
+++ b/classes/cluster/os-ha-ovs/openstack/proxy.yml
@@ -4,6 +4,7 @@
 - system.nginx.server.proxy.openstack_vnc
 - system.nginx.server.proxy.openstack_web
 - system.salt.minion.cert.proxy
+- cluster.os-ha-ovs.openstack.dashboard
 - cluster.os-ha-ovs
 parameters:
   _param:
@@ -12,4 +13,4 @@
       authority: ${_param:salt_minion_ca_authority}
       engine: salt
       mode: secure
-    salt_minion_ca_host: cfg01.${_param:cluster_domain}
\ No newline at end of file
+    salt_minion_ca_host: cfg01.${_param:cluster_domain}