namespace，pv 一直Terminating状态处理

1，namespace  Terminating状态处理

在k8s集群中进行测试删除namespace是经常的事件，而为了方便操作，一般都是直接对整个名称空间进行删除操作。

1. $ kubectl get ns qasim
2. NAME    STATUS        AGE
3. qasim   Terminating   24d

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 调用接口删除

1. 开启一个代理终端
2. $ kubectl proxy
3. Starting to serve on 127.0.0.1:8001

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1. 再开启一个操作终端

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1. 将test namespace的配置文件输出保存
2. $ kubectl get ns qasim  -o json > qasim.json

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1. 删除spec下finalizers的内容及status部分的内容还有metadata字段后的","号，切记！
2. 剩下内容大致如下：<br>

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1. {
2.     "apiVersion": "v1",
3.     "kind": "Namespace",
4.     "metadata": {
5.         "annotations": {
6.             "cattle.io/status": "{"Conditions":[{"Type":"ResourceQuotaInit","Status":"True","Message":"","LastUpdateTime":"2020-10-09T07:12:17Z"},{"Type":"InitialRolesPopulated","Status":"True","Message":"","LastUpdateTime":"2020-10-09T07:12:18Z"}]}",
7.             "lifecycle.cattle.io/create.namespace-auth": "true"
8.         },
9.         "creationTimestamp": "2020-10-09T07:12:16Z",
10.         "deletionTimestamp": "2020-10-09T07:12:22Z",
11.         "name": "qasim",
12.         "resourceVersion": "471648079",
13.         "selfLink": "/api/v1/namespaces/test",
14.         "uid": "862d311e-d87a-48c2-bc48-332a4db9dbdb"
15.     }
16. }

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1. 调接口删除<br>

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1. $ curl -k -H "Content-Type: application/json" -X PUT --data-binary @qasim.json http://127.0.0.1:8001/api/v1/namespaces/qasim/finalize
2. {
3.   "kind": "Namespace",
4.   "apiVersion": "v1",
5.   "metadata": {
6.     "name": "qasim",
7.     "uid": "fa898418-3a8c-4464-854c-3128ad7af3eb",
8.     "resourceVersion": "584891986",
9.     "creationTimestamp": "2021-12-16T03:00:34Z",
10.     "deletionTimestamp": "2022-04-11T07:59:18Z",
11.     "labels": {
12.       "kubernetes.io/metadata.name": "qasim"
13.     },
14.     "managedFields": [
15.       {
16.         "manager": "kubectl-create",
17.         "operation": "Update",
18.         "apiVersion": "v1",
19.         "time": "2021-12-16T03:00:34Z",
20.         "fieldsType": "FieldsV1",
21.         "fieldsV1": {"f:metadata":{"f:labels":{".":{},"f:kubernetes.io/metadata.name":{}}}}
22.       },
23.       {
24.         "manager": "kube-controller-manager",
25.         "operation": "Update",
26.         "apiVersion": "v1",
27.         "time": "2022-04-11T07:59:32Z",
28.         "fieldsType": "FieldsV1",
29.         "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":{}}}}}
30.       }
31.     ]
32.   },
33.   "spec": {
34.    
35.   },
36.   "status": {
37.     "phase": "Terminating",
38.     "conditions": [
39.       {
40.         "type": "NamespaceDeletionDiscoveryFailure",
41.         "status": "True",
42.         "lastTransitionTime": "2022-04-11T07:59:26Z",
43.         "reason": "DiscoveryFailed",
44.         "message": "Discovery failed for some groups, 1 failing: unable to retrieve the complete list of server APIs: metrics.k8s.io/v1beta1: the server is currently unable to handle the request"
45.       },
46.       {
47.         "type": "NamespaceDeletionGroupVersionParsingFailure",
48.         "status": "False",
49.         "lastTransitionTime": "2022-04-11T07:59:32Z",
50.         "reason": "ParsedGroupVersions",
51.         "message": "All legacy kube types successfully parsed"
52.       },
53.       {
54.         "type": "NamespaceDeletionContentFailure",
55.         "status": "False",
56.         "lastTransitionTime": "2022-04-11T07:59:32Z",
57.         "reason": "ContentDeleted",
58.         "message": "All content successfully deleted, may be waiting on finalization"
59.       },
60.       {
61.         "type": "NamespaceContentRemaining",
62.         "status": "False",
63.         "lastTransitionTime": "2022-04-11T07:59:32Z",
64.         "reason": "ContentRemoved",
65.         "message": "All content successfully removed"
66.       },
67.       {
68.         "type": "NamespaceFinalizersRemaining",
69.         "status": "False",
70.         "lastTransitionTime": "2022-04-11T07:59:32Z",
71.         "reason": "ContentHasNoFinalizers",
72.         "message": "All content-preserving finalizers finished"
73.       }
74.     ]
75.   }

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补充：删除rancher的相关namespace（谨慎操作！！！）

1. kubectl patch namespace cattle-system -p '{"metadata":{"finalizers":[]}}' --type='merge' -n cattle-system
3. kubectl delete namespace cattle-system --grace-period=0 --force
5. kubectl patch namespace cattle-global-data -p '{"metadata":{"finalizers":[]}}' --type='merge' -n cattle-system
7. kubectl delete namespace cattle-global-data --grace-period=0 --force
9. kubectl patch namespace local -p '{"metadata":{"finalizers":[]}}' --type='merge' -n cattle-system
11. for resource in `kubectl api-resources --verbs=list --namespaced -o name | xargs -n 1 kubectl get -o name -n local`; do kubectl patch $resource -p '{"metadata": {"finalizers": []}}' --type='merge' -n local; done
13. kubectl delete namespace local --grace-period=0 --force

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2，pv  Terminating状态处理

（1）可以执行如下命令强制删除（PV-NAME 替换成实际需要删除的 pv 名称）：

1. $ kubectl patch pv pv-name -p  '{"metadata":{"finalizers":null}}'

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 （2）再次查看可以发现该 pv 已被删除： 

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