Describe and Document Dataflow Between Container Registry and GitLab Monolith
Context
A document describing all container registry data which the GitLab single application makes use of would be a valuable resource to facilitate cross-stage data access and drive SpU. There is a particular need for this document since some of the more low-level, but potentially useful data are stored within the Container Registry and are accessible via an API.
This document should describe which data are stored within the rails database and which data are stored within the container registry for the purpose of general overview, rather than something on the level of detail such as an entity relation model.
This document should provide examples of dataflow for typical container registry operations e.g., A container is built and tagged in CI and a user inspects the GitLab UI to verify the presence of the newly build container.