介绍
最近始终在玩 EKS（Elastic Kubernetes Service -- Amazon EKS） 和 KubeSphere。 因为之前没有应用过 EKS 和 KubeSphere，所以这个过程也是一个试错的过程，在我应用 KubeSphere 的时候发现有一个日志服务，在好奇心的驱使下，我创立了它。
在我创立了日志服务（KubeSphere Logging System）当前，我发现我并不想应用它。（可能我只是想看看它到底是什么吧。）强迫症的我就想把它给删除掉。于是我在我的 EKS 中对他进行了强制删除：
$ kubectl delete ns kubesphere-logging-system --force --grace-period=0让人难堪的是，这个 Namespace 并没有立马删除，我自我安慰道，可能 Namespace 下边有其余没有删除的资源在期待删除，我再等等。。。
过了半个小时，再次查看删除进度：
$ kubectl get ns kubesphere-logging-systemNAME STATUS AGEkubesphere-logging-system Terminating 6d19h它如同这地卡在了 Terminating 的状态。我试着寻找解决办法，参考这个 isue：http://github.com/kubernetes/...。然而这种办法要通过 API 才能够实现。EKS 是托管在 AWS 中的，我基本没有方法去操作 EKS 的后盾。
终于我在这个 issue 中找到了答案：https://github.com/kubernetes...
如何彻底删除 namespace
获取 namespace 的详情信息并转为 json
$ kubectl get namespace kubesphere-logging-system -o json > kubesphere-logging-system.json关上 json 文件编辑
{ "apiVersion": "v1", "kind": "Namespace", "metadata": { "creationTimestamp": "2021-12-31T05:03:58Z", "deletionTimestamp": "2022-01-05T08:05:40Z", "labels": { "kubesphere.io/namespace": "kubesphere-logging-system", "kubesphere.io/workspace": "system-workspace" }, "managedFields": [ { "apiVersion": "v1", "fieldsType": "FieldsV1", "fieldsV1": { "f:metadata": { "f:labels": { ".": {}, "f:kubesphere.io/namespace": {} }, "f:ownerReferences": { ".": {}, "k:{\"uid\":\"6d535470-2592-4f3c-a155-eabc362c339d\"}": { ".": {}, "f:apiVersion": {}, "f:blockOwnerDeletion": {}, "f:controller": {}, "f:kind": {}, "f:name": {}, "f:uid": {} } } } }, "manager": "controller-manager", "operation": "Update", "time": "2021-12-31T05:04:01Z" }, { "apiVersion": "v1", "fieldsType": "FieldsV1", "fieldsV1": { "f:metadata": { "f:labels": { "f:kubesphere.io/workspace": {} } }, "f:status": { "f:phase": {} } }, "manager": "kubectl", "operation": "Update", "time": "2021-12-31T05:04:01Z" }, { "apiVersion": "v1", "fieldsType": "FieldsV1", "fieldsV1": { "f:status": { "f:conditions": { ".": {}, "k:{\"type\":\"NamespaceContentRemaining\"}": { ".": {}, "f:lastTransitionTime": {}, "f:message": {}, "f:reason": {}, "f:status": {}, "f:type": {} }, "k:{\"type\":\"NamespaceDeletionContentFailure\"}": { ".": {}, "f:lastTransitionTime": {}, "f:message": {}, "f:reason": {}, "f:status": {}, "f:type": {} }, "k:{\"type\":\"NamespaceDeletionDiscoveryFailure\"}": { ".": {}, "f:lastTransitionTime": {}, "f:message": {}, "f:reason": {}, "f:status": {}, "f:type": {} }, "k:{\"type\":\"NamespaceDeletionGroupVersionParsingFailure\"}": { ".": {}, "f:lastTransitionTime": {}, "f:message": {}, "f:reason": {}, "f:status": {}, "f:type": {} }, "k:{\"type\":\"NamespaceFinalizersRemaining\"}": { ".": {}, "f:lastTransitionTime": {}, "f:message": {}, "f:reason": {}, "f:status": {}, "f:type": {} } } } }, "manager": "kube-controller-manager", "operation": "Update", "time": "2022-01-05T08:05:47Z" } ], "name": "kubesphere-logging-system", "ownerReferences": [ { "apiVersion": "tenant.kubesphere.io/v1alpha1", "blockOwnerDeletion": true, "controller": true, "kind": "Workspace", "name": "system-workspace", "uid": "6d535470-2592-4f3c-a155-eabc362c339d" } ], "resourceVersion": "7376520", "uid": "2b76e9b1-75f2-4a2e-a819-73b36aea188e" }, "spec": { "finalizers": [ "kubernetes" # 将此行删除 ] }, "status": { "conditions": [ { "lastTransitionTime": "2022-01-05T08:05:47Z", "message": "All resources successfully discovered", "reason": "ResourcesDiscovered", "status": "False", "type": "NamespaceDeletionDiscoveryFailure" }, { "lastTransitionTime": "2022-01-05T08:05:47Z", "message": "All legacy kube types successfully parsed", "reason": "ParsedGroupVersions", "status": "False", "type": "NamespaceDeletionGroupVersionParsingFailure" }, { "lastTransitionTime": "2022-01-05T08:05:47Z", "message": "All content successfully deleted, may be waiting on finalization", "reason": "ContentDeleted", "status": "False", "type": "NamespaceDeletionContentFailure" }, { "lastTransitionTime": "2022-01-05T08:05:47Z", "message": "Some resources are remaining: fluentbits.logging.kubesphere.io has 1 resource instances", "reason": "SomeResourcesRemain", "status": "True", "type": "NamespaceContentRemaining" }, { "lastTransitionTime": "2022-01-05T08:05:47Z", "message": "Some content in the namespace has finalizers remaining: fluentbit.logging.kubesphere.io in 1 resource instances", "reason": "SomeFinalizersRemain", "status": "True", "type": "NamespaceFinalizersRemaining" } ], "phase": "Terminating" }}找到 spec 将 finalizers 下的 kubernetes 删除。
具体如下
{ "apiVersion": "v1", "kind": "Namespace", "metadata": { "creationTimestamp": "2021-12-31T05:03:58Z", "deletionTimestamp": "2022-01-05T08:05:40Z", "labels": { "kubesphere.io/namespace": "kubesphere-logging-system", "kubesphere.io/workspace": "system-workspace" }, "managedFields": [ { "apiVersion": "v1", "fieldsType": "FieldsV1", "fieldsV1": { "f:metadata": { "f:labels": { ".": {}, "f:kubesphere.io/namespace": {} }, "f:ownerReferences": { ".": {}, "k:{\"uid\":\"6d535470-2592-4f3c-a155-eabc362c339d\"}": { ".": {}, "f:apiVersion": {}, "f:blockOwnerDeletion": {}, "f:controller": {}, "f:kind": {}, "f:name": {}, "f:uid": {} } } } }, "manager": "controller-manager", "operation": "Update", "time": "2021-12-31T05:04:01Z" }, { "apiVersion": "v1", "fieldsType": "FieldsV1", "fieldsV1": { "f:metadata": { "f:labels": { "f:kubesphere.io/workspace": {} } }, "f:status": { "f:phase": {} } }, "manager": "kubectl", "operation": "Update", "time": "2021-12-31T05:04:01Z" }, { "apiVersion": "v1", "fieldsType": "FieldsV1", "fieldsV1": { "f:status": { "f:conditions": { ".": {}, "k:{\"type\":\"NamespaceContentRemaining\"}": { ".": {}, "f:lastTransitionTime": {}, "f:message": {}, "f:reason": {}, "f:status": {}, "f:type": {} }, "k:{\"type\":\"NamespaceDeletionContentFailure\"}": { ".": {}, "f:lastTransitionTime": {}, "f:message": {}, "f:reason": {}, "f:status": {}, "f:type": {} }, "k:{\"type\":\"NamespaceDeletionDiscoveryFailure\"}": { ".": {}, "f:lastTransitionTime": {}, "f:message": {}, "f:reason": {}, "f:status": {}, "f:type": {} }, "k:{\"type\":\"NamespaceDeletionGroupVersionParsingFailure\"}": { ".": {}, "f:lastTransitionTime": {}, "f:message": {}, "f:reason": {}, "f:status": {}, "f:type": {} }, "k:{\"type\":\"NamespaceFinalizersRemaining\"}": { ".": {}, "f:lastTransitionTime": {}, "f:message": {}, "f:reason": {}, "f:status": {}, "f:type": {} } } } }, "manager": "kube-controller-manager", "operation": "Update", "time": "2022-01-05T08:05:47Z" } ], "name": "kubesphere-logging-system", "ownerReferences": [ { "apiVersion": "tenant.kubesphere.io/v1alpha1", "blockOwnerDeletion": true, "controller": true, "kind": "Workspace", "name": "system-workspace", "uid": "6d535470-2592-4f3c-a155-eabc362c339d" } ], "resourceVersion": "7376520", "uid": "2b76e9b1-75f2-4a2e-a819-73b36aea188e" }, "spec": { "finalizers": [ ] }, "status": { "conditions": [ { "lastTransitionTime": "2022-01-05T08:05:47Z", "message": "All resources successfully discovered", "reason": "ResourcesDiscovered", "status": "False", "type": "NamespaceDeletionDiscoveryFailure" }, { "lastTransitionTime": "2022-01-05T08:05:47Z", "message": "All legacy kube types successfully parsed", "reason": "ParsedGroupVersions", "status": "False", "type": "NamespaceDeletionGroupVersionParsingFailure" }, { "lastTransitionTime": "2022-01-05T08:05:47Z", "message": "All content successfully deleted, may be waiting on finalization", "reason": "ContentDeleted", "status": "False", "type": "NamespaceDeletionContentFailure" }, { "lastTransitionTime": "2022-01-05T08:05:47Z", "message": "Some resources are remaining: fluentbits.logging.kubesphere.io has 1 resource instances", "reason": "SomeResourcesRemain", "status": "True", "type": "NamespaceContentRemaining" }, { "lastTransitionTime": "2022-01-05T08:05:47Z", "message": "Some content in the namespace has finalizers remaining: fluentbit.logging.kubesphere.io in 1 resource instances", "reason": "SomeFinalizersRemain", "status": "True", "type": "NamespaceFinalizersRemaining" } ], "phase": "Terminating" }}执行清理命令
当初咱们只须要一条命令 就能够彻底删除这个 Namespace。
$ kubectl replace --raw "/api/v1/namespaces/kubesphere-logging-system/finalize" -f ./kubesphere-logging-system.json 执行完当前，你须要期待一会，再次执行命令查看 Namespace。
$ kubectl replace --raw "/api/v1/namespaces/kubesphere-logging-system/finalize" -f ./kubesphere-logging-system.json 最初的查看
$ kubectl get ns kubesphere-logging-systemError from server (NotFound): namespaces "kubesphere-logging-system" not found$ kubectl get ns NAME STATUS AGEdefault Active 23dkubesphere-controls-system Active 9dkubesphere-devops-system Active 9dkubesphere-devops-worker Active 16hkubesphere-monitoring-federated Active 9dkubesphere-monitoring-system Active 9dkubesphere-sample-dev Active 8dkubesphere-system Active 9d再次查看的时候，它曾经不存在了。
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