Story #6353
Updated by ttereshc over 3 years ago
### Motivation * Clients **Problem:** clients installing packages from RPM mirrors hosted by Pulp don't have access to the original metadata provided in the remote repository. * There are problems with caching and/or load-balancing if multiple instances of pulp produce different metadata syncing from the same remote repository. * If a repo contains duplicated content under different paths, such repo can't be synced at all, unless a path is a part of the content natural key. ### Proposed solution. Add **Solution:** add ability to create repository versions that contain the original metadata from the remote repository. repository This could be accomplished by the following: * Have introducing a way new repository type to distinguish between repositories with managed content and with the exact mirror (e.g. create RPM plugin: - RpmMirrorRepository - only supports sync operation The RPMDistribution will need to support users providing a repository with exact_mirror=True or a new dedicated repository type, RpmMirrorRepository) * For such repos, create a publication at sync time (includes published artifacts and metadata). * For such repos, publish is no-op and always returns the existing publication for the requested repo version. * For such repos, no modifications are allowed except the sync version in mirror mode. #### Pros * non-invasive, only additive model changes * can be implemented in addition to publications. If a plugin which needs it repository or it can be moved to repo version is specified, the pulpcore if it allows plugin input at certain points. * leaves a way for further improvement to handle a more general case, see the full proposal here https://hackmd.io/02KBjCD3Q0WP7p4ALwzhJw#relative_path-in-PublishedArtifact-only #### Cons * doesn't solve the problem of various relative paths for the same content in general way * a separate code path (at times) to handle RpmDistribution should validate that this type repository is of repositories. RpmMirrorRepository type.
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