https://docs.docker.com/install/linux/docker-ce/centos/#install-using-the-repository
yum remove docker-ce rm -rf /var/lib/docker
出现如下信息则成功 -------------------------------------------- 已加载插件:fastestmirror adding repo from: http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo grabbing file http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo repo saved to /etc/yum.repos.d/docker-ce.repo
#创建文件
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-‘EOF‘
{
"registry-mirrors": ["https://fogjl973.mirror.aliyuncs.com"]
}
EOF
systemctl daemon-reload
#重启
systemctl restart docker
原文:https://www.cnblogs.com/lxyuuuuu/p/13363337.html