搭建Kubernetes集群 错误：没有可用软件包 kubelet kubeadm kubectl 1.29.0

把/etc/yum.repo.d/kubernetes.repo的内容替换成下面的内容即可：

[isv_kubernetes_core_stable_v1.29]
name=Kubernetes v1.29 (Stable) (rpm)
type=rpm-md
baseurl=https://download.opensuse.org/repositories/isv:/kubernetes:/core:/stable:/v1.29/rpm/
gpgcheck=1
gpgkey=https://download.opensuse.org/repositories/isv:/kubernetes:/core:/stable:/v1.29/rpm/repodata/repomd.xml.key
enabled=1