添加工作节点失败
来源：1-6 向集群加入worker节点
慕九州9557276
2018-09-29
老师
k8s2在执行kubeadm join后,能够在k8s1上看到node但是状态一直是NotReady。
root@k8s1:/home/maxiaohua# kubectl get nodes
NAME STATUS ROLES AGE VERSION
k8s1 Ready master 20m v1.11.3
k8s2 NotReady <none> 4m v1.11.3
k8s3在执行kubeadm join后一直尝试连接但总通不过。
[discovery] Failed to request cluster info, will try again: [Get https://10.0.2.6:6443/api/v1/namespaces/kube-public/configmaps/cluster-info: x509: certificate has expired or is not yet valid]
[discovery] Failed to request cluster info, will try again: [Get https://10.0.2.6:6443/api/v1/namespaces/kube-public/configmaps/cluster-info: x509: certificate has expired or is not yet valid]
[discovery] Failed to request cluster info, will try again: [Get https://10.0.2.6:6443/api/v1/namespaces/kube-public/configmaps/cluster-info: x509: certificate has expired or is not yet valid]
请问是什么原因k8s110.0.2.6
写回答
1回答
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worker node上的kubelet负责向apiserver注册节点，现在的问题似乎就是注册失败，可以先检查一下网络是否是通的？如果网络通，从你提供的日志来看应该是证书过期或失效。因为join所使用的token是有有效期的。具体问题可以查看node上kubelet的日志。使用journalctl查看
022018-09-30
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