ubuntu安装k8s二进制文件#更新包列表并安装HTTPS支持sudoapt-getupdate&&sudoapt-getinstall-yapt-transport-https#创建keyrings目录（若已存在不会报错）sudomkdir-p/etc/apt/keyrings#下载并添加阿里云Kubernetes镜像的GPG密钥curl-fsSLhttps://mi