最新推荐文章于 2024-07-30 16:31:34 发布

kubectl  get nodes
Unable to connect to the server: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "kubernetes")
/root/.kube/config证书认证错误，使用正确证书，可能是kubeadm reset证书未删除
删除原来的证书及缓存文件
#rm -rf  /root/.kube/*
拷贝master节点上证书到目录即可
                                    运行kubeadm reset清除配置后，对集群初始化也是成功的。然而当运行 kubectl get nodes 时又报错..原因：执行kubeadm reset命令后没有删除创建的.kube目录，重新创建集群就会出现这个问题！
kubectl get nodes
报错：Unable to connect to the server: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "kubernet
                                    报错信息： Unable to connect to the server: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "kubernetes")
                                    K8s v1.21.5 版本Unable to connect to the server: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "kubernetes")
                                    起因，在使用二进制搭建k8s集群的时候出现的一个v报错～
报错内容：
[root@k8s-master bin]# kubectl create clusterrolebinding kubelet-bootstrap \
> --clusterrole=system:node-bootstrapper \
> --user=kubelet-bootstrap
Unable to connect to the server: x509: certificate signed by unknown
                                    kubectl get nodes运行时出现：Unable to connect to the server: x509: certificate signed by unknown authority
原因：我们在运行kubeadm reset时，没有删除原先的$HOME/.kube文件导致新建的kubelet报错。实际上在kubeadm reset执行后，系统已经提示我们需要手动删除这个配置文件。
解决方法：在运行kubeadm reset之后，接着输入rm -rf $HOME/.kube删除原配置文