一、现象

当删除命名空间后，发现该空间一直处于Terminating状态

[root@weifeng-HP:/home/online/api2kafka$  ~]# kubectl get ns
NAME          STATUS        AGE
default       Active        48d
kube-public   Active        48d
kube-system   Active        48d
monitoring      Terminating   37m

二、现象

2.1开启一个窗口，启动一个进程

kubectl proxy --port=8081

2.2将namespace信息导出

kubectl get ns monitoring -o json > monitoring.json

2.3删除掉 “spec” 下的内容，即spec的{}设为空（因为k8s集群是携带认证的）

2.4通过发送请求的方式进行删除

curl -k -H "Content-Type:application/json" -X PUT --data-binary @monitoring.json http://127.0.0.1:8081/api/v1/namespaces/monitoring/finalize

@monitoring.json即为之前导出的命名空间文件；
结尾URL中namespaces后面为待删除的命名空间名称

执行删除命令返回文件内容

{
  "kind": "Namespace",
  "apiVersion": "v1",
  "metadata": {
    "name": "monitoring",
    "uid": "0693944b-2f48-4484-ba09-ba9c6d7f5a13",
    "resourceVersion": "11705186",
    "creationTimestamp": "2022-05-18T07:25:29Z",
    "deletionTimestamp": "2022-08-22T02:57:31Z",
    "annotations": {
      "kubectl.kubernetes.io/last-applied-configuration": "{\"apiVersion\":\"v1\",\"kind\":\"Namespace\",\"metadata\":{\"annotations\":{},\"name\":\"monitoring\"}}\n"
    },
    "managedFields": [
      {
        "manager": "kubectl-client-side-apply",
        "operation": "Update",
        "apiVersion": "v1",
        "time": "2022-05-18T07:25:29Z",
        "fieldsType": "FieldsV1",
        "fieldsV1": {"f:metadata":{"f:annotations":{".":{},"f:kubectl.kubernetes.io/last-applied-configuration":{}}},"f:status":{"f:phase":{}}}
      },
      {
        "manager": "kube-controller-manager",
        "operation": "Update",
        "apiVersion": "v1",
        "time": "2022-08-22T02:57:36Z",
        "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":{}}}}}
      }
    ]
  },
  "spec": {
    
  },
  "status": {
    "phase": "Terminating",
    "conditions": [
      {
        "type": "NamespaceDeletionDiscoveryFailure",
        "status": "True",
        "lastTransitionTime": "2022-08-22T02:57:36Z",
        "reason": "DiscoveryFailed",
        "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"
      },
      {
        "type": "NamespaceDeletionGroupVersionParsingFailure",
        "status": "False",
        "lastTransitionTime": "2022-08-22T02:57:36Z",
        "reason": "ParsedGroupVersions",
        "message": "All legacy kube types successfully parsed"
      },
      {
        "type": "NamespaceDeletionContentFailure",
        "status": "False",
        "lastTransitionTime": "2022-08-22T02:57:36Z",
        "reason": "ContentDeleted",
        "message": "All content successfully deleted, may be waiting on finalization"
      },
      {
        "type": "NamespaceContentRemaining",
        "status": "False",
        "lastTransitionTime": "2022-08-22T02:58:03Z",
        "reason": "ContentRemoved",
        "message": "All content successfully removed"
      },
      {
        "type": "NamespaceFinalizersRemaining",
        "status": "False",
        "lastTransitionTime": "2022-08-22T02:57:36Z",
        "reason": "ContentHasNoFinalizers",
        "message": "All content-preserving finalizers finished"
      }
    ]
  }

检查删除操作，若没有monitoring的字段则表示删除成功

[root@weifeng-HP:/home/online/api2kafka$  ~]# kubectl get ns
NAME          STATUS        AGE
default       Active        48d
kube-public   Active        48d
kube-system   Active        48d