As a user, I can associate a remote with a repository
Currently there is no way to link a repository with a remote, and as such, each time you wish to sync a repository against it's upstream link, you have to keep a record (or query for) the appropriate remote for that repo.
This can be done with careful consideration around naming conventions, however it would be nice if an optional link between a Repository and Remote was possible.
As such, once the Repository and Remote have been created an paired, a simply repository sync would be able to work out which remote to use, and sync.
Add a many-to-many foreign key between Repositories and Remotes. This association should be optional. For now Repositories can only have 0 or 1 remotes. Remotes can belong to any number of repositories.
Note: In the future we want to be able to support multiple remotes for repositories that can be synced at once. See https://pulp.plan.io/issues/7031. This is the purpose of having a many-to-many instead of one-to-many.
Add an iterable to Repository similar to CONTENT_TYPES. This iterable will check that when a remote is added to a repo, it is of one of these types.
Expose a remote hrefs field for repository endpoints. Users should be able to create/read/update this field. Validate the remote type against
REMOTE_TYPES and that a user is only supplying 0..1 remote. Also, indicate in the help text that this field is optional.
Expose a repository hrefs field for remotes. Users should be able to view this field to see which repos a remote belongs to. Also, indicate in the help text that this field is optional.
Make the remote parameter on sync optional. If no remote is supplied, the sync task uses the remote field on Repository when syncing.
If a repository does not have a remote and no remote is supplied, raise an error.