k8s -- 删除namespace时一直Terminating

删除ns，一直处于Terminating状态中：

[root@master1 tmp]# kubectl get ns | grep Terminating
billing                        Terminating   92d
istio-system                   Terminating   358d
kubesphere-alerting-system     Terminating   358d
kubesphere-controls-system     Terminating   358d
kubesphere-devops-system       Terminating   358d
kubesphere-logging-system      Terminating   358d
kubesphere-monitoring-system   Terminating   358d
kubesphere-system              Terminating   358d
openpitrix-system              Terminating   358d

解决方法：

#!/bin/bash
ns_list=`kubectl get ns | grep Terminating|awk '{print $1}'`

for nas in $ns_list
do 
kubectl get ns $nas -o json > /tmp/$nas.json
done

将json文件中的finalizers字段置空：

[root@master1 ~]# cat billing.json 
{
    "apiVersion": "v1",
    "kind": "Namespace",
    "metadata": {
        "annotations": {
            "kubesphere.io/creator": "xiongzw",
            "openpitrix_runtime": "runtime-XzRWj3JVyw9v"
        },
        "creationTimestamp": "2020-07-10T01:41:49Z",
        "deletionGracePeriodSeconds": 0,
        "deletionTimestamp": "2020-09-29T06:54:40Z",
        "finalizers": [
            "finalizers.kubesphere.io/namespaces" #清空finalizers字段中内容
        ],
        "labels": {
            "kubesphere.io/workspace": "asiainfo"
        },
        "name": "billing",
        "ownerReferences": [
            {
                "apiVersion": "tenant.kubesphere.io/v1alpha1",
                "blockOwnerDeletion": true,
                "controller": true,
                "kind": "Workspace",
                "name": "asiainfo",
                "uid": "d274f81e-f154-11e9-a4c3-fa163ea525b1"
            }
        ],
        "resourceVersion": "144469004",
        "selfLink": "/api/v1/namespaces/billing",
        "uid": "85bc6392-c24e-11ea-b466-fa163ea525b1"
    },
    "spec": {}, #删除spec字段中的相关内容
    "status": {
        "phase": "Terminating"
    }
}

全部修改完毕后，执行下面脚本：

[root@master1 tmp]# cat del.sh
#!/bin/bash

kubectl proxy --port=8081 &

ns_list=`kubectl get ns | grep Terminating|awk '{print $1}'`

for nas in $ns_list
do
curl -k -H "Content-Type: application/json" -X PUT --data-binary @$nas.json http://127.0.0.1:8081/api/v1/namespaces/$nas/finalize
done

查看namespace状态：

[root@master1 deploy]# kubectl get ns
NAME              STATUS   AGE
corecrm           Active   357d
default           Active   358d
kube-node-lease   Active   358d
kube-public       Active   358d
kube-system       Active   358d
showenv           Active   210d
smartenv          Active   189d

所有Terminating状态的namespace都已删除。