@task_manager.require_exclusive_lock
    def tear_down(self, task):
        manager_utils.node_power_action(task, states.POWER_OFF)
        return states.DELETED
Tear down a previous deployment on the task's node.
dataset/ETHPy150Open openstack/ironic/ironic/drivers/modules/iscsi_deploy.py/ISCSIDeploy.tear_down