官方文档:https://docs.docker.com/engine/install/centos/
docker_4">1、安装docker
下载依赖包
yum -y install gcc
yum -y install gcc-c++
yum install -y yum-utils
设置仓库
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
更新yum软件包索引
yum makecache fast
安装DOCKER CE
yum -y install docker-ce docker-ce-cli containerd.io
docker_27">2、启动docker
systemctl start docker
3、验证
查看docker
docker version
运行helloworld
docker run hello-world