Description of problem: We provide a very simple multi-site configuration reference in the Object Gateway guide and customer's aren't configuring these vanilla A to B site replications. Customers are using multiple realms and other more advanced configurations so we should provide an example for configuring this use-case. Guide: https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/4/html/object_gateway_configuration_and_administration_guide/rgw-multisite-rgw Version-Release number of selected component (if applicable): RHCS 4.0