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一、问题提出

在使用 KubeSphere 的时候发现有一个日志服务KubeSphere Logging System，它被创建命名空间为kubesphere-logging-system下。当我们不想使用它，需要删除它时，确一直在 Terminating中，怎么也删除不掉。

kubectl delete ns kubesphere-logging-system  --force --grace-period=0

二、删除方法

1，获取kubesphere-logging-syste的详细信息json文件

首先 通过以下命令获取 namespace 的详情信息并转为 json。

kubectl get namespace kubesphere-logging-system -o json > kubesphere-logging-system.json

2，编辑kubesphere-logging-system.json

vim kubesphere-logging-system.json

{"apiVersion": "v1","kind": "Namespace","metadata": {"creationTimestamp": "2023-12-24T23:13:34Z","deletionTimestamp": "2023-12-27T07:49:27Z","labels": {"kubesphere.io/namespace": "kubesphere-logging-system","kubesphere.io/workspace": "system-workspace"},"name": "kubesphere-logging-system","resourceVersion": "2878899","selfLink": "/api/v1/namespaces/kubesphere-logging-system","uid": "dd01ee56-2dee-40ba-b63e-5fc71e27507b"},"spec": {"finalizers": ["kubernetes" # 将此行删除]},"status": {"conditions": [{"lastTransitionTime": "2023-12-27T07:49:35Z","message": "All resources successfully discovered","reason": "ResourcesDiscovered","status": "False","type": "NamespaceDeletionDiscoveryFailure"},{"lastTransitionTime": "2023-12-27T07:49:35Z","message": "All legacy kube types successfully parsed","reason": "ParsedGroupVersions","status": "False","type": "NamespaceDeletionGroupVersionParsingFailure"},{"lastTransitionTime": "2023-12-27T08:47:05Z","message": "All content successfully deleted, may be waiting on finalization","reason": "ContentDeleted","status": "False","type": "NamespaceDeletionContentFailure"},{"lastTransitionTime": "2023-12-27T07:49:35Z","message": "Some resources are remaining: exporters.events.kubesphere.io has 1 resource instances, fluentbits.logging.kubesphere.io has 1 resource instances, rulers.events.kubesphere.io has 1 resource instances","reason": "SomeResourcesRemain","status": "True","type": "NamespaceContentRemaining"},{"lastTransitionTime": "2023-12-27T07:49:35Z","message": "Some content in the namespace has finalizers remaining: exporters.finalizer.events.kubesphere.io in 1 resource instances, fluentbit.logging.kubesphere.io in 1 resource instances, rulers.finalizer.events.kubesphere.io in 1 resource instances","reason": "SomeFinalizersRemain","status": "True","type": "NamespaceFinalizersRemaining"}],"phase": "Terminating"}
}

找到 spec 将 finalizers 下的 kubernetes 删除。

3，执行清理命令

现在我们只需要一条命令 就可以彻底删除这个 Namespace。

kubectl replace --raw "/api/v1/namespaces/kubesphere-logging-system/finalize" -f ./kubesphere-logging-system.json

三、检查结果

查看namespace kubesphere-logging-system，

kubectl get ns kubesphere-logging-system

已经找不到命名空间kubesphere-logging-system了。

查看所有命名空间：

kubectl get ns

再次查看的时候，它已经不存在了！！