def opt_node_name_prefix(self, node_name_prefix):
        self.setdefault('node-name-prefixes', []).append(
            node_name_prefix
        )
Nodes beginning with ``node-name-prefix`` will be considered
dataset/ETHPy150Open ClusterHQ/flocker/admin/cleanup.py/CleanupCloudResourcesOptions.opt_node_name_prefix