删除命名空间失败
今天在作测试的时候，清理集群。就把没用的都清理掉包括命名空间。但是发现失败了，一直卡在终止状态。
导致删除失败的原因一般有两种：
1、命名空间下还有资源在用，如果有删除，命名空间自动消失
2、就是名称空间下没有资源
我是第二个问题，那么就针对它作个处理办法梳理
[root@ECS1 ~]# kubectl get ns
NAME STATUS AGE
app-team1 Terminating 3d7h
default Active 3d19h
internal Active 2d23h
kube-node-lease Active 3d19h
kube-public Active 3d19h
kube-system Active 3d19h
[root@ECS1 ~]# kubectl delete ns/app-team1
namespace "app-team1" deleted
^C
[root@ECS1 ~]#
没办法只能手动停止另想办法，不然卡到你天荒地老。
找到一个神奇的地方找到这么一段话
There‘s one situation that may require forcing finalization for a namespace. If you‘ve deleted a namespace and you‘ve cleaned out all of the objects under it, but the namespace still exists, deletion can be forced by updating the namespace subresource, finalize. This informs the namespace controller that it needs to remove the finalizer from the namespace and perform any cleanup:
大体意思就是如果删除了命名空间，在已经清除空间下所有对象后。空间还在，那么需要通过更新名称空间子资源来强制删除。这种方式通知名称空间控制器，我要从命名空间中删除终结器并且执行清理所有操作。
这东西用的是restful请求方式，但是我这不安全端口都封掉了，开个代理吧（可以选择用证书）
[root@ECS1 ~]# kubectl proxy --port=8081
Starting to serve on 127.0.0.1:8081
开始删除
cat <<EOF | curl -X PUT localhost:8081/api/v1/namespaces/app-team1/finalize -H "Content-Type: application/json" --data-binary @-
{
"kind": "Namespace",
"apiVersion": "v1",
"metadata": {
"name": "app-team1"
},
"spec": {
"finalizers": null
}
}
EOF
查看结果
[root@ECS1 ~]# cat <<EOF | curl -X PUT > localhost:8081/api/v1/namespaces/app-team1/finalize > -H "Content-Type: application/json" > --data-binary @-
> {
> "kind": "Namespace",
> "apiVersion": "v1",
> "metadata": {
> "name": "app-team1"
> },
> "spec": {
> "finalizers": null
> }
> }
> EOF
{
"kind": "Namespace",
"apiVersion": "v1",
"metadata": {
"name": "app-team1",
"uid": "108e6665-9b70-422c-8f94-783347101836",
"resourceVersion": "533794",
"creationTimestamp": "2021-06-08T23:46:24Z",
"deletionTimestamp": "2021-06-12T06:27:33Z",
"managedFields": [
{
"manager": "curl",
"operation": "Update",
"apiVersion": "v1",
"time": "2021-06-12T06:58:32Z",
"fieldsType": "FieldsV1",
"fieldsV1": {"f:status":{"f:phase":{}}}
}
]
},
"spec": {
},
"status": {
"phase": "Terminating",
"conditions": [
{
"type": "NamespaceDeletionDiscoveryFailure",
"status": "True",
"lastTransitionTime": "2021-06-12T06:27:38Z",
"reason": "DiscoveryFailed",
"message": "Discovery failed for some groups, 2 failing: unable to retrieve the complete list of server APIs: discovery.k8s.io/v1: the server could not find the requested resource, policy/v1: the server could not find the requested resource"
},
{
"type": "NamespaceDeletionGroupVersionParsingFailure",
"status": "False",
"lastTransitionTime": "2021-06-12T06:27:38Z",
"reason": "ParsedGroupVersions",
"message": "All legacy kube types successfully parsed"
},
{
"type": "NamespaceDeletionContentFailure",
"status": "False