docker安装

1.下载依赖项

yum -y install yum-utils device-mapper-peristent-data lvn2

2.设置镜像源

yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

3.安装

yum -y install docker-ce

启动服务

systemctl start docker

设置开机启动

systemctl enable docker

测试

docker run hello-world