diff --git a/deploy-guide/source/configure.rst b/deploy-guide/source/configure.rst
index 90108b06eb..d6f92be02d 100644
--- a/deploy-guide/source/configure.rst
+++ b/deploy-guide/source/configure.rst
@@ -50,6 +50,11 @@ these services include databases, Memcached, and RabbitMQ. Several other
 host types contain other types of containers, and all of these are listed
 in the ``openstack_user_config.yml`` file.
 
+Some services, such as glance, heat, horizon and nova-infra, are not listed
+individually in the example file as they are contained in the os-infra hosts.
+You can specify image-hosts or dashboard-hosts if you want to scale out in a
+specific manner.
+
 For examples, please see :ref:`test-environment-config`,
 :ref:`production-environment-config`, and :ref:`pod-environment-config`