code: def monmap(cluster, hostname):
      
      monmap
      mon_map_file = '%s.%s.monmap' % (cluster, hostname)
      return join(constants.tmp_path, mon_map_file)
docs: Example usage::
  
          >>> from ceph_deploy.util.paths import mon
          >>> mon.monmap('mycluster', 'myhostname')
          /var/lib/ceph/tmp/mycluster.myhostname.monmap