Tags give the ability to mark specific points in history as being important
Cleanup policies for container registries
Container registries can take up considerable storage space over time, particularly due to the accumulation of numerous tags, some of which are unused.
To ensure optimal use of resources and avoid performance issues, we strongly recommend that you implement cleanup policies for your container registries in LRZ GitLab so that image tags that are no longer required are automatically removed on a regular basis.
You can access the setting under ‘Settings -> Packages and registries -> Container registry’
Details on the configuration of cleanup policies can be found in the official documentation: https://docs.gitlab.com/development/packages/cleanup_policies/