解决k8s删除命名空间时一直报错terminated无法成功删除的故障

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故障现象如下：

在启动dashboard的时候报错，之前删除过一次，再次创建无法创建

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查看命名空间状态为Terminating

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强制删除也没有用

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解决方法：

先将namespace的配置文件输出保存

[root@master01 k8s]# kubectl get ns kubernetes-dashboard -o json > tmp.json

删除spec及status部分的内容，剩下内容如下

[root@master01 k8s]# vim tmp.json {"apiVersion": "v1","kind": "Namespace","metadata": {"annotations": {"kubectl.kubernetes.io/last-applied-configuration": "{\"apiVersion\":\"v1\",\"kind\":\"Namespace\",\"metadata\":{\"annotations\":{},\"name\":\"kubernetes-dashboard\"}}\n"},"creationTimestamp": "2020-10-08T12:11:06Z","deletionTimestamp": "2020-10-09T03:22:56Z","name": "kubernetes-dashboard","resourceVersion": "311861","selfLink": "/api/v1/namespaces/kubernetes-dashboard","uid": "57df1ddf-095f-11eb-89f9-000c29f4bf17"}}

启动代理：

[root@master01 k8s]# kubectl proxy
Starting to serve on 127.0.0.1:8001

调用接口删除

[root@master01 k8s]# curl -k -H "Content-Type: application/json" -X PUT --data-binary @tmp.json http://127.0.0.1:8001/api/v1/namespaces/kubernetes-dashboard/finalize
{"kind": "Namespace","apiVersion": "v1","metadata": {"name": "kubernetes-dashboard","selfLink": "/api/v1/namespaces/kubernetes-dashboard/finalize","uid": "57df1ddf-095f-11eb-89f9-000c29f4bf17","resourceVersion": "313388","creationTimestamp": "2020-10-08T12:11:06Z","deletionTimestamp": "2020-10-09T03:22:56Z","annotations": {"kubectl.kubernetes.io/last-applied-configuration": "{\"apiVersion\":\"v1\",\"kind\":\"Namespace\",\"metadata\":{\"annotations\":{},\"name\":\"kubernetes-dashboard\"}}\n"}},"spec": {},"status": {"phase": "Terminating"}
}

查看命名空间已成功删除

[root@master01 k8s]# kubectl get ns
NAME          STATUS   AGE
default       Active   9d
kube-public   Active   9d
kube-system   Active   9d[root@master01 k8s]# kubectl get ns kubernetes-dashboard
Error from server (NotFound): namespaces "kubernetes-dashboard" not found