Overview:
  This resource provides external interface to the idmap.

Method GET:
  Retrieve all identity mappings (uid, gid, sid, and on-disk) for the supplied
  source persona.

  Query Arguments:
    nocreate=<boolean>
      Idmap should attempt to create missing identity mappings.
    zone=<string>
      Optional zone.

Method DELETE:
  Flush the entire idmap cache.

  Query Arguments:
    2way=<boolean>
      Delete the bi-directional mapping from source to target and target to
      source.
    target=<string>
      Target identity persona.
    zone=<string>
      Optional zone.
    remove=<boolean>
      Delete mapping instead of flush mapping from cache.

Method POST:
  Manually set or modify a mapping between two personae.

  Query Arguments:
    type=[uid|gid|sid]
      Desired mapping target to fetch/generate.
    zone=<string>
      Optional zone.

