1、首先配置docker的阿里yum源

cat >/etc/yum.repos.d/docker.repo<<EOF
[docker-ce-edge]
name=Docker CE Edge - \$basearch
baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/\$basearch/edge
enabled=1
gpgcheck=1
gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
EOF

2、用yum方式安装docker

# yum安装
yum -y install docker-ce# 查看docker版本
docker --version  # 启动docker
systemctl enable docker
systemctl start docker

3配置docker多镜像源配置

cat >> /etc/docker/daemon.json << EOF
{"registry-mirrors": ["https://registry.docker-cn.com","http://hub-mirror.c.163.com","https://docker.mirrors.ustc.edu.cn","https://cr.console.aliyun.com","https://mirror.ccs.tencentyun.com"]
}
EOF

4、重启docker

systemctl restart docker
# 查看docker版本
docker --version