卸载旧版Docker
若系统中已存在旧版Docker，需先卸载以下组件：
yum removedocker\docker-client\docker-client-latest\docker-common\docker-latest\docker-latest-logrotate\docker-logrotate\docker-engine\docker-selinux配置Docker的yum仓库
安装必要工具并配置阿里云镜像源：
sudoyuminstall-yyum-utils device-mapper-persistent-data lvm2sudoyum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.reposudosed-i's+download.docker.com+mirrors.aliyun.com/docker-ce+'/etc/yum.repos.d/docker-ce.reposudoyum makecache fast安装Docker
执行以下命令安装Docker及插件：
yuminstall-ydocker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin启动与验证
启动Docker并设置开机自启：
systemctl startdockersystemctlenabledocker验证安装是否成功：
dockerps配置镜像加速
创建配置文件并加载国内镜像源：
mkdir-p/etc/dockertee/etc/docker/daemon.json<<-'EOF' { "registry-mirrors": [ "http://hub-mirror.c.163.com", "https://mirrors.tuna.tsinghua.edu.cn", "http://mirrors.sohu.com", "https://ustc-edu-cn.mirror.aliyuncs.com", "https://ccr.ccs.tencentyun.com", "https://docker.m.daocloud.io", "https://docker.awsl9527.cn" ] } EOFsystemctl daemon-reload systemctl restartdocker
