• 想删除K8S当中的一个名称空间

      使用如下命令删除一直卡着，手动终止之后发现名称空间为”Terminating”状态

    1. [root@k8s-master01 storage]# kubectl get ns -A
    2. NAME                           STATUS        AGE
    3. default                        Active        3d6h
    4. kube-node-lease                Active        3d6h
    5. kube-public                    Active        3d6h
    6. kube-system                    Active        3d6h
    7. kubesphere-alerting-system     Active        4h12m
    8. kubesphere-controls-system     Active        2d5h
    9. kubesphere-devops-system       Active        4h12m
    10. kubesphere-logging-system      Active        4h12m
    11. kubesphere-monitoring-system   Active        4h55m
    12. kubesphere-system              Terminating   4h12m
    13. openpitrix-system              Active        4h12m
    14. [root@k8s-master01 storage]#
    16. #使用如下命令删除发现名称空间为"Terminating"
    17. [root@k8s-master01 storage]# kubectl delete ns kubesphere-alerting-system
    18. namespace "kubesphere-alerting-system" deleted
    19. ^C
    20. [root@k8s-master01 storage]# kubectl get ns -A
    21. NAME                           STATUS        AGE
    22. default                        Active        3d6h
    23. kube-node-lease                Active        73s
    24. kube-public                    Active        3d6h
    25. kube-system                    Active        3d6h
    26. kubesphere-alerting-system     Terminating   4h15m
    27. kubesphere-controls-system     Active        2d6h
    28. kubesphere-devops-system       Active        4h15m
    29. kubesphere-logging-system      Active        4h15m
    30. kubesphere-monitoring-system   Active        4h58m
    31. kubesphere-system              Terminating   4h15m
    32. openpitrix-system              Active        4h15m
    33. [root@k8s-master01 storage]#
    35. #试一下强制删除的方法，同样是"Terminating"状态
    36. [root@k8s-master01 storage]# kubectl delete ns kubesphere-controls-system --force --grace-period=0
    37. warning: Immediate deletion does not wait for confirmation that the running resource has been terminated. The resource may continue to run on the cluster indefinitely.
    38. namespace "kubesphere-controls-system" force deleted
    39. ^C
    40. [root@k8s-master01 storage]#
    41. [root@k8s-master01 storage]# kubectl get ns kubesphere-controls-system
    42. NAME                         STATUS        AGE
    43. kubesphere-controls-system   Terminating   2d6h
    44. [root@k8s-master01 storage]#
    • 使用如下方法

      网上搜索了一下，可以使用以下方法删除

    1. kubectl get namespace 命名空间的名字 -o json > devtesting.json
    3. #示例
    4. [root@k8s-master01 storage]# kubectl get ns kubesphere-alerting-system -o json > devtesting.json
    5. [root@k8s-master01 storage]#

    编辑devtesting.json文件，删除spec和finalizers这两个字段包含的内容。

    1.     "spec": {
    2.         "finalizers": [
    3.             "kubernetes"
    4.         ]
    5.     },
    6.  #改为
    7.      "spec": {
    8.     },

    使用kubectl代理，执行命名

    1. [root@k8s-master01 storage]# kubectl proxy --port=8081
    2. Starting to serve on 127.0.0.1:8081
    4. #再开一个窗口试下能不能访问
    5. [root@k8s-master01 storage]# curl http://localhost:8081/api
    6. {
    7.   "kind": "APIVersions",
    8.   "versions": [
    9.     "v1"
    10.   ],
    11.   "serverAddressByClientCIDRs": [
    12.     {
    13.       "clientCIDR": "0.0.0.0/0",
    14.       "serverAddress": "192.168.1.8:6443"
    15.     }
    16.   ]
    17. }[root@k8s-master01 storage]#

    使用http接口进行删除

    1. curl -k -H "Content-Type: application/json" -X PUT --data-binary @devtesting.json http://127.0.0.1:8080/api/v1/namespaces/命名空间的名字/finalize
    4. #示例
    5. [root@k8s-master01 storage]# curl -k -H "Content-Type: application/json" -X PUT --data-binary @devtesting.json http://127.0.0.1:8081/api/v1/namespaces/kubesphere-alerting-system/finalize
    6. {
    7.   "kind": "Namespace",
    8.   "apiVersion": "v1",
    9.   "metadata": {
    10.     "name": "kubesphere-alerting-system",
    11.     "selfLink": "/api/v1/namespaces/kubesphere-alerting-system/finalize",
    12.     "uid": "966d12a7-2de6-49ac-956d-811742764f41",
    13.     "resourceVersion": "374909",
    14.     "creationTimestamp": "2020-11-22T10:09:02Z",
    15.     "deletionTimestamp": "2020-11-22T14:22:36Z",
    16.     "labels": {
    17.       "kubesphere.io/namespace": "kubesphere-alerting-system",
    18.       "kubesphere.io/workspace": "system-workspace"
    19.     }
    20.   },
    21.   "spec": {
    23.   },
    24.   "status": {
    25.     "phase": "Terminating",
    26.     "conditions": [
    27.       {
    28.         "type": "NamespaceDeletionDiscoveryFailure",
    29.         "status": "True",
    30.         "lastTransitionTime": "2020-11-22T14:22:41Z",
    31.         "reason": "DiscoveryFailed",
    32.         "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"
    33.       },
    34.       {
    35.         "type": "NamespaceDeletionGroupVersionParsingFailure",
    36.         "status": "False",
    37.         "lastTransitionTime": "2020-11-22T14:22:41Z",
    38.         "reason": "ParsedGroupVersions",
    39.         "message": "All legacy kube types successfully parsed"
    40.       },
    41.       {
    42.         "type": "NamespaceDeletionContentFailure",
    43.         "status": "False",
    44.         "lastTransitionTime": "2020-11-22T14:22:41Z",
    45.         "reason": "ContentDeleted",
    46.         "message": "All content successfully deleted"
    47.       }
    48.     ]
    49.   }
    50. }
    51. [root@k8s-master01 storage]#
    52. [root@k8s-master01 storage]# kubectl get ns kubesphere-alerting-system
    53. Error from server (NotFound): namespaces "kubesphere-alerting-system" not found
    54. [root@k8s-master01 storage]#
    55. #成功删除