k8s的namespace资源一直terminating问题解决

问题：删除ns时一直显示terminating的状态
解决：

• 方法一：
  通过强制删除，并且设置优雅删除时间为0（默认为30s）

    kubectl delete ns cattle-system --force --grace-period=0
  

  实践后发现并不好使

• 方法二：
  通过k8s提供的api接口，把.metadata.finalizers字段及其内容删除，从而k8s会直接将该ns删除

    $ kubectl get ns cattle-system -o json > cattle-system.json
    $ cat cattle-system.json
    {
        "apiVersion": "v1",
        "kind": "Namespace",
        "metadata": {
            "annotations": {
                "cattle.io/status": "{"Conditions":[{"Type":"ResourceQuotaInit","Status":"True","Message":"","LastUpdateTime":"2022-04-19T04:11:00Z"},{"Type":"InitialRolesPopulated","Status":"True","Message":"","LastUpdateTime":"2022-04-19T04:11:06Z"}]}",
                "field.cattle.io/projectId": "c-m-p9qpsm85:p-xxjt6",
                "kubectl.kubernetes.io/last-applied-configuration": "{"apiVersion":"v1","kind":"Namespace","metadata":{"annotations":{},"name":"cattle-system"}}n",
                "lifecycle.cattle.io/create.namespace-auth": "true",
                "management.cattle.io/no-default-sa-token": "true"
            },
            "creationTimestamp": "2022-04-19T04:10:57Z",
            "deletionGracePeriodSeconds": 0,
            "deletionTimestamp": "2022-04-19T04:13:25Z",
            "finalizers": [
                "controller.cattle.io/namespace-auth"
            ],
            "name": "cattle-system",
            "resourceVersion": "189264460",
            "selfLink": "/api/v1/namespaces/cattle-system",
            "uid": "b71ffd2d-bf96-11ec-a6c4-fa163eb86964"
        },
        "spec": {},
        "status": {
            "phase": "Terminating"
        }
    }
    $ kubectl proxy --port=8081(开启k8s apiserver的一个http代理，以免必须带上证书才能访问)
    $ curl -k -H "Content-Type: application/json" -X PUT --data-binary @cattle-system.json  http://127.0.0.1:8081/api/v1/namespaces/cattle-system/finalize
  

  经过第二种方法后，果然ns删除