1、添加阿里的docker-ce.repo源

yum install -y yum-utils  device-mapper-persistent-data  lvm2

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

#或者在/etc/yum.reop.d/下面wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

2、安装docker

yum install -y docker-ce 

docker version

###遇见的问题

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

systemctl daemon-reload

systemctl restart docker.service

3、配置镜像加速

[root@localhost /]# mkdir -p /etc/docker
1
[root@localhost /]# vim /etc/docker/daemon.json
1
daemon.json添加以下内容：
#阿里云，引号格式
{
   "registry-mirrors": ["https://1lnz32yq.mirror.aliyuncs.com"]
}

#配置后重启

systemctl daemon-reload

systemctl restart docker.service