Artifactory does precisely this. It's particularly useful since large organizations want to minimize their risk of, for example, a Docker Hub outage preventing an emergency hotfix. In Artifactory you can setup 'remote repositories' which are then overlayed on top of your own repository within Artifactory. Docker provides the `registry-mirrors` setting which then will automatically redirect all pulls to Artifactory rather than Docker hub. There's no need to change your manifests and/or FROM stanzas.