Synnefo » snf-ganeti

{-| 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