前提條件:之前搭建過k8s集群,使用 kubeadm reset 命令清除集群所有的配置之后,重新運行 kubectl get nodes 時報錯:
[root@master ~]# 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")
運行kubeadm reset清除配置后,對集群初始化也是成功的
kubeadm init --kubernetes-version=1.26.3 --apiserver-advertise-address=10.0.0.32 --service-cidr=10.2.0.0/16 --pod-network-cidr=10.224.0.0/16
然而當(dāng)運行 kubectl get nodes 時又報錯..
原因:執(zhí)行?kubeadm reset
命令后沒有刪除創(chuàng)建的?.kube
目錄,重新創(chuàng)建集群就會出現(xiàn)這個問題!
解決:
rm -rf .kube/
sudo mkdir ~/.kube
sudo cp /etc/kubernetes/admin.conf ~/.kube/
cd ~/.kube
sudo mv admin.conf config
sudo service kubelet restart
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