1、首先如果系统中已经存在旧的Docker，则先卸载
yum remove docker \
    docker-client \
    docker-client-latest \
    docker-common \
    docker-latest \
    docker-latest-logrotate \
    docker-logrotate \
    docker-engine \
    docker-selinux 
2、执行命令，配置Docker的yum源
sudo yum-config-manager --add-repo https://repo.huaweicloud.com/docker-ce/linux/centos/docker-ce.repo
sed -i 's+download.docker.com+repo.huaweicloud.com/docker-ce+' /etc/yum.repos.d/docker-ce.repo
sed -i 's+$releasever+8+'  /etc/yum.repos.d/docker-ce.repo
更新yum，建立缓存
yum makecache
3、执行命令，安装Docker
yum install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
4、启动和校验
# 启动Docker
systemctl start docker
# 停止Docker
systemctl stop docker
# 重启
systemctl restart docker
# 设置开机自启
systemctl enable docker
# 执行docker ps命令，如果不报错，说明安装启动成功
docker ps
5、配置镜像加速
# 创建目录
mkdir -p /etc/docker
# 复制内容
tee /etc/docker/daemon.json <<-'EOF'
{
    "registry-mirrors": [
       "https://docker.1panel.live",
        "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"
    ]
}
EOF
# 重新加载配置
systemctl daemon-reload
# 重启Docker
systemctl restart docker