k8s 强制删除pod和ns

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前阵子搭了集群体验了下kuboard控制面板,后台停机只保留了一台master,结果所有发现kuboard namespace中的资源都是Terminating,迟迟未转移到master上。。。。也删不掉。。。

[root@node1 ~]# kubectl get nodes
NAME    STATUS     ROLES    AGE   VERSION
node1   Ready      master   18d   v1.18.9
node2   NotReady   <none>   18d   v1.18.9
node3   NotReady   <none>   18d   v1.18.9
[root@node1 pratic]# kubectl get pods -A -o wide
NAMESPACE       NAME                                       READY   STATUS        RESTARTS   AGE   IP                NODE    NOMINATED NODE   READINESS GATES
default         nginx-deployment-c6d76d89f-29z9n           1/1     Running       2          18d   10.100.135.38     node3   <none>           <none>
default         nginx-deployment-c6d76d89f-m98tq           1/1     Running       2          18d   10.100.104.31     node2   <none>           <none>
default         nginx-deployment-c6d76d89f-qd2dj           1/1     Running       2          18d   10.100.104.36     node2   <none>           <none>
default         nginx-deployment-c6d76d89f-s846s           1/1     Running       2          18d   10.100.104.38     node2   <none>           <none>
default         nginx-deployment-c6d76d89f-sgn2t           1/1     Running       2          18d   10.100.135.37     node3   <none>           <none>
kube-system     calico-kube-controllers-5b8b769fcd-v285z   1/1     Running       3          18d   10.100.166.162    node1   <none>           <none>
kube-system     calico-node-285tv                          0/1     Running       4          18d   192.168.174.132   node1   <none>           <none>
kube-system     calico-node-hr94c                          1/1     Running       7          18d   192.168.174.133   node2   <none>           <none>
kube-system     calico-node-sgfql                          1/1     Running       7          18d   192.168.174.134   node3   <none>           <none>
kube-system     coredns-66db54ff7f-kldqw                   1/1     Running       3          18d   10.100.166.161    node1   <none>           <none>
kube-system     coredns-66db54ff7f-strrs                   1/1     Running       3          18d   10.100.166.160    node1   <none>           <none>
kube-system     eip-nfs-nfsserver-b8c6d97c-89l2x           1/1     Running       6          18d   10.100.135.31     node3   <none>           <none>
kube-system     etcd-node1                                 1/1     Running       3          18d   192.168.174.132   node1   <none>           <none>
kube-system     kube-apiserver-node1                       1/1     Running       7          18d   192.168.174.132   node1   <none>           <none>
kube-system     kube-controller-manager-node1              1/1     Running       5          18d   192.168.174.132   node1   <none>           <none>
kube-system     kube-proxy-96x9p                           1/1     Running       3          18d   192.168.174.132   node1   <none>           <none>
kube-system     kube-proxy-sk6r2                           1/1     Running       2          18d   192.168.174.133   node2   <none>           <none>
kube-system     kube-proxy-v9frz                           1/1     Running       2          18d   192.168.174.134   node3   <none>           <none>
kube-system     kube-scheduler-node1                       1/1     Running       4          18d   192.168.174.132   node1   <none>           <none>
kuboard         alertmanager-main-0                        2/2     Terminating   5          18d   10.100.135.39     node3   <none>           <none>
kuboard         alertmanager-main-1                        2/2     Terminating   5          18d   10.100.104.37     node2   <none>           <none>
kuboard         alertmanager-main-2                        2/2     Terminating   5          18d   10.100.135.32     node3   <none>           <none>
kuboard         blackbox-exporter-555d8688d9-rnhk8         3/3     Terminating   6          18d   10.100.104.39     node2   <none>           <none>
kuboard         dingtalk-949d7795f-lqmrk                   1/1     Terminating   2          18d   10.100.135.36     node3   <none>           <none>
kuboard         dingtalk-949d7795f-m6f69                   1/1     Terminating   2          18d   10.100.104.40     node2   <none>           <none>
kuboard         grafana-66c85d8454-q4v6l                   1/1     Terminating   2          18d   10.100.104.35     node2   <none>           <none>
kuboard         kube-state-metrics-5b9f68d8d6-wxmll        3/3     Terminating   9          18d   10.100.135.34     node3   <none>           <none>
kuboard         kuboard-pv-browser-tfrv6                   2/2     Terminating   30         18d   10.100.104.34     node2   <none>           <none>
kuboard         kuboard-pv-browser-zh699                   2/2     Terminating   30         18d   10.100.135.40     node3   <none>           <none>
kuboard         node-exporter-5t5hc                        2/2     Terminating   4          18d   192.168.174.134   node3   <none>           <none>
kuboard         node-exporter-th4lj                        2/2     Terminating   4          18d   192.168.174.133   node2   <none>           <none>
kuboard         prometheus-adapter-54849b899c-2sgvn        1/1     Terminating   4          18d   10.100.104.29     node2   <none>           <none>
kuboard         prometheus-adapter-54849b899c-f6mz6        1/1     Terminating   5          18d   10.100.135.30     node3   <none>           <none>
kuboard         prometheus-k8s-0                           2/2     Terminating   4          18d   10.100.104.33     node2   <none>           <none>
kuboard         prometheus-k8s-1                           2/2     Terminating   4          18d   10.100.135.35     node3   <none>           <none>
kuboard         prometheus-operator-55b85b9cbf-qrz7r       2/2     Terminating   6          18d   10.100.104.32     node2   <none>           <none>
kuboard         system-monitor-config-7b67d679d6-l4fl5     1/1     Terminating   2          18d   10.100.135.33     node3   <none>           <none>
nginx-ingress   nginx-ingress-jb7cc                        1/1     Running       5          18d   10.100.104.30     node2   <none>           <none>
nginx-ingress   nginx-ingress-t99n6                        1/1     Running       4          18d   10.100.135.41     node3   <none>           <none>

用原来的kuboard的声明文件删除,发现卡住了

[root@node1 pratic]# kubectl delete -f kuboard-agent.yaml 
namespace "kuboard" deleted
serviceaccount "kuboard-admin" deleted
clusterrolebinding.rbac.authorization.k8s.io "kuboard-admin-crb" deleted
serviceaccount "kuboard-viewer" deleted
clusterrolebinding.rbac.authorization.k8s.io "kuboard-viewer-crb" deleted
deployment.apps "kuboard-agent" deleted
deployment.apps "kuboard-agent-2" deleted


^C

# 无法删除,等了n久
[root@node1 pratic]# kubectl delete -f kuboard-agent.yaml 
namespace "kuboard" deleted
Error from server (NotFound): error when deleting "kuboard-agent.yaml": serviceaccounts "kuboard-admin" not found
Error from server (NotFound): error when deleting "kuboard-agent.yaml": clusterrolebindings.rbac.authorization.k8s.io "kuboard-admin-crb" not found
Error from server (NotFound): error when deleting "kuboard-agent.yaml": serviceaccounts "kuboard-viewer" not found
Error from server (NotFound): error when deleting "kuboard-agent.yaml": clusterrolebindings.rbac.authorization.k8s.io "kuboard-viewer-crb" not found
Error from server (NotFound): error when deleting "kuboard-agent.yaml": deployments.apps "kuboard-agent" not found
Error from server (NotFound): error when deleting "kuboard-agent.yaml": deployments.apps "kuboard-agent-2" not found

发现cpu、磁盘啥的资源消耗也不高

[root@node1 pratic]# top
top - 00:33:46 up 14 min,  5 users,  load average: 0.87, 1.08, 0.79
Tasks: 202 total,   1 running, 201 sleeping,   0 stopped,   0 zombie
%Cpu(s):  0.8 us,  0.8 sy,  0.0 ni, 98.4 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem : 16247820 total, 13258136 free,  1221864 used,  1767820 buff/cache
KiB Swap:        0 total,        0 free,        0 used. 14618080 avail Mem 

   PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                                                                                   
  9646 root      20   0 2777948  57172  15800 S   6.2  0.4   0:08.47 containerd                                                                                
  9916 root      20   0 1186224  99088  29288 S   6.2  0.6   0:34.26 dockerd                                                                                   
 23653 root      20   0  146512  23704  13976 S   6.2  0.1   0:02.98 coredns                                                                                   
     1 root      20   0  191364   4404   2600 S   0.0  0.0   0:03.96 systemd                                                                                   
     2 root      20   0       0      0      0 S   0.0  0.0   0:00.01 kthreadd                                                                                  
     3 root      20   0       0      0      0 S   0.0  0.0   0:00.07 ksoftirqd/0                                                                               
     4 root      20   0       0      0      0 S   0.0  0.0   0:00.41 kworker/0:0                                                                               
     5 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 kworker/0:0H                                                                              
     6 root      20   0       0      0      0 S   0.0  0.0   0:00.12 kworker/u256:0                                                                            
     7 root      rt   0       0      0      0 S   0.0  0.0   0:00.06 migration/0                                                                               
     8 root      20   0       0      0      0 S   0.0  0.0   0:00.00 rcu_bh                                                                                    
     9 root      20   0       0      0      0 S   0.0  0.0   0:01.75 rcu_sched                                                                                 
    10 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 lru-add-drain                                                                             
    11 root      rt   0       0      0      0 S   0.0  0.0   0:00.00 watchdog/0                                                                                
    12 root      rt   0       0      0      0 S   0.0  0.0   0:00.00 watchdog/1                                                                                
    13 root      rt   0       0      0      0 S   0.0  0.0   0:00.06 migration/1                                                                               
    14 root      20   0       0      0      0 S   0.0  0.0   0:00.07 ksoftirqd/1                                                                               
    16 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 kworker/1:0H

当时也没有时间describe看看啥问题,只想强制删除了,反正体验完毕该结束了

# 测试了下发现可以删除
[root@node1 pratic]# kubectl delete pod/prometheus-k8s-0 --force --grace-period=0 -n kuboard
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.
pod "prometheus-k8s-0" force deleted

# 批量删除kuboard ns下的资源
for i in `kubectl get pods -A | awk '/kuboard/ {print $2}'`;do echo $i &&  kubectl delete pod\/$i --force --grace-period=0 -n kuboard;done
alertmanager-main-0
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.
pod "alertmanager-main-0" force deleted
alertmanager-main-1
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.
pod "alertmanager-main-1" force deleted
alertmanager-main-2
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.
pod "alertmanager-main-2" force deleted
blackbox-exporter-555d8688d9-rnhk8
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.
pod "blackbox-exporter-555d8688d9-rnhk8" force deleted
dingtalk-949d7795f-lqmrk
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.
pod "dingtalk-949d7795f-lqmrk" force deleted
dingtalk-949d7795f-m6f69
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.
pod "dingtalk-949d7795f-m6f69" force deleted
grafana-66c85d8454-q4v6l
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.
pod "grafana-66c85d8454-q4v6l" force deleted
kube-state-metrics-5b9f68d8d6-wxmll
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.
pod "kube-state-metrics-5b9f68d8d6-wxmll" force deleted
kuboard-pv-browser-tfrv6
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.
pod "kuboard-pv-browser-tfrv6" force deleted
kuboard-pv-browser-zh699
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.
pod "kuboard-pv-browser-zh699" force deleted
node-exporter-5t5hc
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.
pod "node-exporter-5t5hc" force deleted
node-exporter-th4lj
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.
pod "node-exporter-th4lj" force deleted
prometheus-adapter-54849b899c-2sgvn
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.
pod "prometheus-adapter-54849b899c-2sgvn" force deleted
prometheus-adapter-54849b899c-f6mz6
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.
pod "prometheus-adapter-54849b899c-f6mz6" force deleted
system-monitor-config-7b67d679d6-l4fl5
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.
pod "system-monitor-config-7b67d679d6-l4fl5" force deleted

删除namespace

[root@node1 pratic]# kubectl get namespace kuboard -o json > tmp.json
[root@node1 pratic]# cat tmp.json 
{
    "apiVersion": "v1",
    "kind": "Namespace",
    "metadata": {
        "annotations": {
            "kubectl.kubernetes.io/last-applied-configuration": "{\"apiVersion\":\"v1\",\"kind\":\"Namespace\",\"metadata\":{\"annotations\":{},\"name\":\"kuboard\"}}\n"
        },
        "creationTimestamp": "2022-04-13T09:55:22Z",
        "deletionTimestamp": "2022-05-01T16:23:27Z",
        "managedFields": [
            {
                "apiVersion": "v1",
                "fieldsType": "FieldsV1",
                "fieldsV1": {
                    "f:metadata": {
                        "f:annotations": {
                            ".": {},
                            "f:kubectl.kubernetes.io/last-applied-configuration": {}
                        }
                    },
                    "f:status": {
                        "f:phase": {}
                    }
                },
                "manager": "kubectl",
                "operation": "Update",
                "time": "2022-04-13T09:55:22Z"
            },
            {
                "apiVersion": "v1",
                "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": {}
                            }
                        }
                    }
                },
                "manager": "kube-controller-manager",
                "operation": "Update",
                "time": "2022-05-01T16:25:59Z"
            }
        ],
        "name": "kuboard",
        "resourceVersion": "92938",
        "selfLink": "/api/v1/namespaces/kuboard",
        "uid": "b495dc61-60dc-4320-afb7-64f0480730f0"
    },
    "spec": {
        "finalizers": [
            "kubernetes"
        ]
    },
    "status": {
        "conditions": [
            {
                "lastTransitionTime": "2022-05-01T16:23:32Z",
                "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": "2022-05-01T16:23:34Z",
                "message": "All legacy kube types successfully parsed",
                "reason": "ParsedGroupVersions",
                "status": "False",
                "type": "NamespaceDeletionGroupVersionParsingFailure"
            },
            {
                "lastTransitionTime": "2022-05-01T16:23:34Z",
                "message": "All content successfully deleted, may be waiting on finalization",
                "reason": "ContentDeleted",
                "status": "False",
                "type": "NamespaceDeletionContentFailure"
            },
            {
                "lastTransitionTime": "2022-05-01T16:23:34Z",
                "message": "Some resources are remaining: persistentvolumeclaims. has 2 resource instances, pods. has 18 resource instances",
                "reason": "SomeResourcesRemain",
                "status": "True",
                "type": "NamespaceContentRemaining"
            },
            {
                "lastTransitionTime": "2022-05-01T16:23:34Z",
                "message": "Some content in the namespace has finalizers remaining: kubernetes.io/pvc-protection in 2 resource instances",
                "reason": "SomeFinalizersRemain",
                "status": "True",
                "type": "NamespaceFinalizersRemaining"
            }
        ],
        "phase": "Terminating"
    }
}


# 将文件中的
#    "spec": {
#        "finalizers": [
#            "kubernetes"
#        ]
#    },
# 改为如下
#    "spec": {
#    },

开启一个api-server代理

[root@node1 pratic]# kubectl proxy --port=8081
Starting to serve on 127.0.0.1:8081

[root@node1 ~]# curl -k -H "Content-Type: application/json" -X PUT --data-binary @tmp.json http://127.0.0.1:8081/api/v1/namespaces/kuboard/finalize
{
  "kind": "Namespace",
  "apiVersion": "v1",
  "metadata": {
    "name": "kuboard",
    "selfLink": "/api/v1/namespaces/kuboard/finalize",
    "uid": "b495dc61-60dc-4320-afb7-64f0480730f0",
    "resourceVersion": "92938",
    "creationTimestamp": "2022-04-13T09:55:22Z",
    "deletionTimestamp": "2022-05-01T16:23:27Z",
    "annotations": {
      "kubectl.kubernetes.io/last-applied-configuration": "{\"apiVersion\":\"v1\",\"kind\":\"Namespace\",\"metadata\":{\"annotations\":{},\"name\":\"kuboard\"}}\n"
    },
    "managedFields": [
      {
        "manager": "kubectl",
        "operation": "Update",
        "apiVersion": "v1",
        "time": "2022-04-13T09:55:22Z",
        "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": "2022-05-01T16:25:59Z",
        "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": "2022-05-01T16:23:32Z",
        "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": "2022-05-01T16:23:34Z",
        "reason": "ParsedGroupVersions",
        "message": "All legacy kube types successfully parsed"
      },
      {
        "type": "NamespaceDeletionContentFailure",
        "status": "False",
        "lastTransitionTime": "2022-05-01T16:23:34Z",
        "reason": "ContentDeleted",
        "message": "All content successfully deleted, may be waiting on finalization"
      },
      {
        "type": "NamespaceContentRemaining",
        "status": "True",
        "lastTransitionTime": "2022-05-01T16:23:34Z",
        "reason": "SomeResourcesRemain",
        "message": "Some resources are remaining: persistentvolumeclaims. has 2 resource instances, pods. has 18 resource instances"
      },
      {
        "type": "NamespaceFinalizersRemaining",
        "status": "True",
        "lastTransitionTime": "2022-05-01T16:23:34Z",
        "reason": "SomeFinalizersRemain",
        "message": "Some content in the namespace has finalizers remaining: kubernetes.io/pvc-protection in 2 resource instances"
      }
    ]
  }
}

我节点服务器已经释放了,发现还有一些node2/node3上的资源

[root@node1 ~]# kubectl get pods -A
NAMESPACE       NAME                                       READY   STATUS        RESTARTS   AGE
default         nginx-deployment-c6d76d89f-29z9n           1/1     Terminating   2          18d
default         nginx-deployment-c6d76d89f-m98tq           1/1     Terminating   2          18d
default         nginx-deployment-c6d76d89f-qd2dj           1/1     Terminating   2          18d
default         nginx-deployment-c6d76d89f-s846s           1/1     Terminating   2          18d
default         nginx-deployment-c6d76d89f-sgn2t           1/1     Terminating   2          18d
kube-system     calico-kube-controllers-5b8b769fcd-v285z   1/1     Running       3          18d
kube-system     calico-node-285tv                          0/1     Running       4          18d
kube-system     calico-node-hr94c                          1/1     Running       7          18d
kube-system     calico-node-sgfql                          1/1     Running       7          18d
kube-system     coredns-66db54ff7f-kldqw                   1/1     Running       3          18d
kube-system     coredns-66db54ff7f-strrs                   1/1     Running       3          18d
kube-system     eip-nfs-nfsserver-b8c6d97c-89l2x           1/1     Terminating   6          18d
kube-system     eip-nfs-nfsserver-b8c6d97c-lphrh           1/1     Running       0          50m
kube-system     etcd-node1                                 1/1     Running       3          18d
kube-system     kube-apiserver-node1                       1/1     Running       7          18d
kube-system     kube-controller-manager-node1              1/1     Running       5          18d
kube-system     kube-proxy-96x9p                           1/1     Running       3          18d
kube-system     kube-proxy-sk6r2                           1/1     Running       2          18d
kube-system     kube-proxy-v9frz                           1/1     Running       2          18d
kube-system     kube-scheduler-node1                       1/1     Running       4          18d
nginx-ingress   nginx-ingress-grqrl                        1/1     Running       0          20m
nginx-ingress   nginx-ingress-jb7cc                        1/1     Running       5          18d
nginx-ingress   nginx-ingress-t99n6                        1/1     Running       4          18d

下线删除node2/node3

[root@node1 ~]# kubectl delete node2 node3
[root@node1 ~]# kubectl get nodes
NAME    STATUS   ROLES    AGE   VERSION
node1   Ready    master   18d   v1.18.9

[root@node1 ~]# kubectl get pods -A
NAMESPACE       NAME                                       READY   STATUS    RESTARTS   AGE
kube-system     calico-kube-controllers-5b8b769fcd-v285z   1/1     Running   3          18d
kube-system     calico-node-285tv                          1/1     Running   4          18d
kube-system     coredns-66db54ff7f-kldqw                   1/1     Running   3          18d
kube-system     coredns-66db54ff7f-strrs                   1/1     Running   3          18d
kube-system     eip-nfs-nfsserver-b8c6d97c-lphrh           1/1     Running   0          56m
kube-system     etcd-node1                                 1/1     Running   3          18d
kube-system     kube-apiserver-node1                       1/1     Running   7          18d
kube-system     kube-controller-manager-node1              1/1     Running   5          18d
kube-system     kube-proxy-96x9p                           1/1     Running   3          18d
kube-system     kube-scheduler-node1                       1/1     Running   4          18d
nginx-ingress   nginx-ingress-grqrl                        1/1     Running   0          26m

正文完
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