RepoAuthRequired increments the counter of repositories that ask for authentication credentials.

RepoFailed increments the counter of repositories failed.

RepoNotFound increments the counter of repositories not found.

RepoProcessed increments the counter of processed repositories and updates the average time it takes to process a repository.

RepoProduced increments the counter of produced repositories.

RepoProduceFailed increments the counter of failures producing repositories.

RepoSkipped increments the counter of skipped repositories for processing.

Start will start the server at the given export and will expose the metric variables.