Fix Horizon ingress

Change-Id: I3225577b25bf9c4ffee19ffc7cfc90f80286660c
diff --git a/roles/openstack_helm_horizon/tasks/main.yml b/roles/openstack_helm_horizon/tasks/main.yml
index 58bea45..ded3bed 100644
--- a/roles/openstack_helm_horizon/tasks/main.yml
+++ b/roles/openstack_helm_horizon/tasks/main.yml
@@ -37,7 +37,7 @@
     openstack_helm_ingress_service_name: horizon-int
     openstack_helm_ingress_service_port: 80
     openstack_helm_ingress_paths:
-      - path: /
+      - path: /grafana
         pathType: Prefix
         backend:
           service: