安装docker
yum install docker

启动docker服务
systemctl start docker.service

systemctl enable docker.service

下载官方centos镜像到本地

docker pull centos

确认已经获取到centos镜像

docker images centos

运行一个docker容器

docker run –I –t centos /bin/bash

查看当前正在运行的docker容器列表

docker ps

docker registry安装
获取registry的镜像

docker pull registry

运行registry容器

docker run –d –v /opt/registry:/var/lib/registry –p 5000:5000 –restart=always –name registry registry