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在使用kubernetes过程中，我们经常会遇到无法删除NameSpace的情况，但是如果一一去删除NameSpace中资源比较麻烦。下面我们给大家介绍强制删除NameSpace的方法。
一、查看已存在的NameSpace
[root@master1 ~]# kubectl get ns
NAME STATUS AGE
default Active 56d
ingress-nginx Active 49d
istio-system Terminating 37d
kube-node-lease Active 56d
kube-public Active 56d
kube-system Active 56d
二、获取需要强制删除的NameSpace信息
[root@master1 ~]# kubectl get namespace istio-system -o json > istio-system.json
[root@master1 ~]# cat istio-system.json
{
"apiVersion": "v1",
"kind": "Namespace",
"metadata": {
"annotations": {
"kubectl.kubernetes.io/last-applied-configuration": "{"apiVersion":"v1","kind":"Namespace","metadata":{"annotations":{},"labels":{"istio-injection":"disabled","istio-operator-managed":"Reconcile","operator.istio.io/component":"Base","operator.istio.io/managed":"Reconcile","operator.istio.io/version":"1.4.3"},"name":"istio-system"}}n"
},
"creationTimestamp": "2020-01-27T15:26:48Z",
"deletionTimestamp": "2020-02-15T01:17:05Z",
"labels": {
"istio-injection": "disabled",
"istio-operator-managed": "Reconcile",
"operator.istio.io/component": "Base",
"operator.istio.io/managed": "Reconcile",
"operator.istio.io/version": "1.4.3"
},
"name": "istio-system",
"resourceVersion": "6024170",
"selfLink": "/api/v1/namespaces/istio-system",
"uid": "d8bdc915-ee6f-43cd-ac37-5e353218095f"
},
"spec": {
"finalizers": [
"kubernetes"
]
},
"status": {
"conditions": [
{
"lastTransitionTime": "2020-02-15T01:17:10Z",
"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",
"reason": "DiscoveryFailed",
"status": "True",
"type": "NamespaceDeletionDiscoveryFailure"
},
{
"lastTransitionTime": "2020-02-15T01:17:13Z",
"message": "All legacy kube types successfully parsed",
"reason": "ParsedGroupVersions",
"status": "False",
"type": "NamespaceDeletionGroupVersion
三、修改已获取的NameSpace信息文件
[root@master1 ~]# cat istio-system.json
{
"apiVersion": "v1",
"kind": "Namespace",
"metadata": {
"annotations": {
"kubectl.kubernetes.io/last-applied-configuration": "{"apiVersion":"v1","kind":"Namespace","metadata":{"annotations":{},"labels":{"istio-injection":"disabled","istio-operator-managed":"Reconcile","operator.istio.io/component":"Base","operator.istio.io/managed":"Reconcile","operator.istio.io/version":"1.4.3"},"name":"istio-system"}}n"
},
"creationTimestamp": "2020-01-27T15:26:48Z",
"deletionTimestamp": "2020-02-15T01:17:05Z",
"labels": {
"istio-injection": "disabled",
"istio-operator-managed": "Reconcile",
"operator.istio.io/component": "Base",
"operator.istio.io/managed": "Reconcile",
"operator.istio.io/version": "1.4.3"
},
"name": "istio-system",
"resourceVersion": "6024170",
"selfLink": "/api/v1/namespaces/istio-system",
"uid": "d8bdc915-ee6f-43cd-ac37-5e353218095f"
},
"spec": {
},
"status": {
"conditions": [
{
"lastTransitionTime": "2020-02-15T01:17:10Z",
"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",
"reason": "DiscoveryFailed",
"status": "True",
"type": "NamespaceDeletionDiscoveryFailure"
},
{
"lastTransitionTime": "2020-02-15T01:17:13Z",
"message": "All legacy kube types successfully parsed",
"reason": "ParsedGroupVersions",
"status": "False",
"type": "NamespaceDeletionGroupVersionParsingFailure"
},
{
"lastTransitionTime": "2020-02-15T01:17:13Z",
"message": "All content successfully del
四、运行kube-proxy
[root@master1 ~]# kubectl proxy
Starting to serve on 127.0.0.1:8001
五、通过API执行强制删除操作
[root@master1 ~]# curl -k -H "Content-Type: application/json" -X PUT --data-binary @istio-system.json http://127.0.0.1:8001/api/v1/namespaces/istio-system/finalize
六、强制删除确认
[root@master1 ~]# kubectl get ns
NAME STATUS AGE
default Active 56d
ingress-nginx Active 49d
kube-node-lease Active 56d
kube-public Active 56d
kube-system Active 56d
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