Centos7安装docker

1、确保服务器连网，配置网络Yum源，安装docker需要extra源

# cd /etc/yum.repos.d/

将阿里云的Centos-7.repo下载保存到该目录

# sed -i 's/$releasever/7/g' Centos-7.repo

2、安装Docker依赖

# yum install -y yum-utils \ 

device-mapper-persistent-data \ 

lvm2

3、配置Docker的Yum源

# yum-config-manager  --add-repo   https://download.docker.com/linux/centos/docker-ce.repo

# yum-config-manager --enable docker-ce-nightly

# yum-config-manager --enable docker-ce-test

# yum-config-manager --disable docker-ce-nightly

4、安装Docker CE

# yum -y install docker-ce \

docker-ce-cli \

containerd.io

5、启动Docker

# systemctl start docker

查看docker安装版本信息

# docker info