'Setup /etc/fstab and mount each nfs share listed in export_paths on
each node in nodes list'

def _mount_nfs_shares(self, nodes, export_paths=None):

    log.info(('Mounting    all    NFS    export    path(s)    on    %d    worker    node(s)' % len(nodes)))
    export_paths = (export_paths or self._get_nfs_export_paths())
    for node in nodes:
        self.pool.simple_job(node.mount_nfs_shares, (self._master, export_paths), jobid=node.alias)
    self.pool.wait(numtasks=len(nodes))
