参考:https://www.redhat.com/sysadmin/troubleshooting-terminating-namespaces
kubectl get namespace ${NAMESPACE} -o json > tmp.json
delete spec中finalizer的字段
临时代理
kubectl proxy
通过api访问
curl -k -H "Content-Type: application/json" -X PUT --data-binary @tmp.json http://127.0.0.1:8001/api/v1/namespaces/${PROJECT_NAME}/finalize
