一、安装与配置1.老版本的Docker被称为Docker或Docker引擎。如果安装了这些，请卸载它们以及相关的依赖项。sudo yum remove docker \ docker-client \ docker-client-latest \ docker-common \ docker-latest \ docker-latest-logrotate \ docker-logrotate \ docker-engine2.安装依赖包sudo yum install -y yum-utils \ device-mapper-persistent-data \ lvm23.设置稳定镜像源sudo yum-config-manager –add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo 4.安装 Docker-CEsudo yum install docker-ce docker-ce-cli containerd.io5.启动 Docker-CEsudo systemctl enable dockersudo systemctl start docker6.镜像加速配置sudo mkdir -p /etc/dockersudo tee /etc/docker/daemon.json <<-‘EOF’{ “registry-mirrors”: [“https://nat17hoj.mirror.aliyuncs.com”]}EOFsudo systemctl daemon-reloadsudo systemctl restart docker7.之后重新加载配置，并且重启 Docker 服务systemctl daemon-reloadsystemctl restart docker二、配置 Docker 容器与镜像1.拉取镜像docker pull nginx