k8s入坑之报错（9）k8s node节点加入到集群时卡住 “[preflight] Running pre-flight checks”...

╰+攻爆jí腚メ 2024-04-01 13:52 60阅读 0赞

> 参考文档[k8s node节点加入到集群时卡住 “\[preflight\] Running pre-flight checks”][k8s node_ _preflight_ Running pre-flight checks]**报错：**  
> k8s node节点加入到集群时卡住 “\[preflight\] Running pre-flight checks”  
> 搭建集群之后想把node加入到集群中，如下

[root@k8s-node1 log]# kubeadm join 10.0.0.200:6443 --token dmsehb.dvofkx1z5dpc0r58 --discovery-token-ca-cert-hash sha256:f8d6e3c1562adcd5e35d6246679c23759124229bf36e100cbf03398849263911
    [preflight] Running pre-flight checks

**原因**

#查看master节点，发现时间不同步
    [root@k8s-master1 kubeadm]# date
    Sun Mar 20 04:05:57 CST 2022
    [root@k8s-node1 log]# date
    Mon Mar 21 17:35:48 CST 2022

**解决：**

#1、同步时间
    [root@k8s-master1 kubeadm]# yum install ntpdate
    [root@k8s-master1 kubeadm]# ntpdate ntp1.aliyun.com;hwclock --systohc
    date;hwclock
    
    #2、去mater节点重新生成token,需要获取新的token
    [root@k8s-master1 kubeadm]# kubeadm token create --ttl 0 --print-join-command
    kubeadm join 10.0.0.200:6443 --token dmsehb.dvofkx1z5dpc0r58 --discovery-token-ca-cert-hash sha256:f8d6e3c1562adcd5e35d6246679c23759124229bf36e100cbf03398849263911
    
    #3、再次加入集群
    [root@k8s-node2 ~]# kubeadm join 10.0.0.200:6443 --token dmsehb.dvofkx1z5dpc0r58 --discovery-token-ca-cert-hash sha256:f8d6e3c1562adcd5e35d6246679c23759124229bf36e100cbf03398849263911
    [preflight] Running pre-flight checks
    [preflight] Reading configuration from the cluster...
    [preflight] FYI: You can look at this config file with 'kubectl -n kube-system get cm kubeadm-config -o yaml'
    [kubelet-start] Writing kubelet configuration to file "/var/lib/kubelet/config.yaml"
    [kubelet-start] Writing kubelet environment file with flags to file "/var/lib/kubelet/kubeadm-flags.env"
    [kubelet-start] Starting the kubelet
    [kubelet-start] Waiting for the kubelet to perform the TLS Bootstrap...
    
    This node has joined the cluster:
    * Certificate signing request was sent to apiserver and a response was received.
    * The Kubelet was informed of the new secure connection details.
    
    Run 'kubectl get nodes' on the control-plane to see this node join the cluster.
    
    [root@k8s-node2 ~]#

> 总结：  
> 当node节点加入集群时卡在\[preflight\] Running pre-flight checks，有两种原因
> 
> 1.  集群节点之前时间不同步
> 2.  token过期，重新生成一下

[k8s node_ _preflight_ Running pre-flight checks]: https://blog.csdn.net/weixin_40668374/article/details/123641294