[Rdo-list] Second glance server

Hello, We use OpenStack in one of our DC locations (location A). Now we want to have compute nodes in other locations (location B). In location B we want to have just compute nodes and an additional glance server to prevent image transfers from location A to B. What is the best practice to have two glance servers in OpenStack and what configuration changes needs to be done to let the compute nodes just access the local glance server. Thank you! Cheers Chris