Override redirect host for openstack_web in a correct way

Change-Id: Icdb4188fe0a99efa412bf4733e6675a2165e1416
diff --git a/classes/cluster/virtual-mcp10-ovs/openstack/proxy.yml b/classes/cluster/virtual-mcp10-ovs/openstack/proxy.yml
index 43741cd..4175ee8 100644
--- a/classes/cluster/virtual-mcp10-ovs/openstack/proxy.yml
+++ b/classes/cluster/virtual-mcp10-ovs/openstack/proxy.yml
@@ -17,8 +17,9 @@
     server:
       site:
         nginx_ssl_redirect_openstack_web:
-          host:
-            name: "$host"
+          redirect:
+            protocol: https
+            host: $host
   linux:
     system:
       package: