yum -y install yum-utils device-mapper-persistent-data lvm2 安装依赖包
curl https://download.docker.com/linux/centos/docker-ce.repo -o
/etc/yum.repos.d/docker-ce.repo 添加docker CE 版本的yum 源
yum -y install docker-ce 安装docker
systemctl start docker 开启docker
systemctl enable docker 开机自启动
docker version 查看docker版本
更改docker的默认源下载地址是国外，添加国内源下载地址
cat /etc/docker/daemon.json
{
"registry-mirrors":["https://8119w6xn.mirror.aliyuncd.com"]
}
systemctl daemin-reload
systemctl restart docker
