src/Ganeti/Query/Cluster.hs

{-| Implementation of the Ganeti Query2 cluster queries.

 -}

{-

Copyright (C) 2012, 2013 Google Inc.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.

-}

module Ganeti.Query.Cluster
  ( clusterMasterNodeName
  ) where

import Control.Monad (liftM)

import Ganeti.Objects
import Ganeti.Config
import Ganeti.Errors

-- | Get master node name.
clusterMasterNodeName :: ConfigData -> ErrorResult String
clusterMasterNodeName cfg =
  let cluster = configCluster cfg
      masterNodeUuid = clusterMasterNode cluster
  in liftM nodeName $ getNode cfg masterNodeUuid