Plugins » Katello

When pulp syncs docker repository from upstream it only pulls manifests pointed to by Manifest list or a Tag.
The tag associations are bound to change over time during subsequent syncs. For example tag "latest" may point to a new image manifest. However pulp retains the old tagless manifests and does not delete them.

Docker Manifests/Docker Manifest Lists that do not point to a Tag are very rarely useful from the perspective of the docker client user. Very rarely do users want to say -> docker pull <repo@digest> .

We need to have a "mirror in sync" option in Katello that removes manifests that do not belong to any list or are associated to any tags (similar to the yum one)