GetLogger returns the logger from the current context, if present.

LoggerExists checks audit logger existence.

NewBlobStore wraps a distribution.BlobStore to track operation results and write them to the audit log.

NewLogger returns new audit logger which inherits fields from the system logger.

NewManifestService wraps a distribution.ManifestService to track operation results and write them to the audit log.

NewTagService wraps a distribution.TagService to track operation results and write them to the audit log,.

WithLogger creates a new context with provided logger.

Logger implements special audit log.