参考
https://blog.csdn.net/Jerry_Pan1990/article/details/103633627

情况：

Kubectl delete ns XXXX 后， namespace 一直处于 Terminating 状态。

使用：

# 删除POD
kubectl delete pod PODNAME --force --grace-period=0

# 删除NAMESPACE
kubectl delete namespace NAMESPACENAME --force --grace-period=0

也无法删除

---

解决过程如下：

开启代理

kubectl proxy &

将此命名空间以 json文件的形式导出

kubectl get namespaces cattle-system -o json > delete.json

仅保留以下内容
cat delete.json

{
    "apiVersion": "v1",
    "kind": "Namespace",
    "metadata": {
        "annotations": {
            "cattle.io/status": "{\"Conditions\":[{\"Type\":\"ResourceQuotaInit\",\"Status\":\"True\",\"Message\":\"\",\"LastUpdateTime\":\"2021-08-16T10:25:08Z\"},{\"Type\":\"InitialRolesPopulated\",\"Status\":\"True\",\"Message\":\"\",\"LastUpdateTime\":\"2021-08-16T10:25:13Z\"}]}",
            "field.cattle.io/projectId": "c-zbbkn:p-lck5p",
            "kubectl.kubernetes.io/last-applied-configuration": "{\"apiVersion\":\"v1\",\"kind\":\"Namespace\",\"metadata\":{\"annotations\":{},\"name\":\"cattle-system\"}}\n",
            "lifecycle.cattle.io/create.namespace-auth": "true"
        },
        "creationTimestamp": "2021-08-16T10:20:24Z",
        "deletionTimestamp": "2021-08-17T09:21:26Z",
        "name": "cattle-system",
        "resourceVersion": "1315451",
        "selfLink": "/api/v1/namespaces/cattle-system",
        "uid": "c4add969-e95b-4214-a84d-c79cdf241b2d"
    },
    "spec": {},
    "status": {
    }
}

调用接口删除

curl -k -H "Content-Type: application/json" -X PUT --data-binary @delete.json http://127.0.0.1:8001/api/v1/namespaces/cattle-system/finalize

删除完毕后确认删除结果，并关闭 proxy