Example usage::

        >>> from ceph_deploy.util.paths import mon
        >>> mon.monmap('mycluster', 'myhostname')
        /var/lib/ceph/tmp/mycluster.myhostname.monmap

def monmap(cluster, hostname):
    """
    Example usage::

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