sudo yum install -y yum-utils device-mapper-persistent-data lvm2
sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
sudo yum makecache fast
sudo yum -y install docker-ce
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-‘EOF‘
{
"registry-mirrors": ["https://xxx.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker
和使用阿里云镜像加速器类似，基本的步骤就是修改/etc/docker/daemon.json 来添加仓库镜像。
{
"registry-mirrors": ["https://xxx.mirror.aliyuncs.com"],
"insecure-registries": ["192.168.37.170"]
}
再运行下面命令让docker重新加载daemon.json，并重启docker。
systemctl daemon-load
sysctemct restart docker
原文：https://www.cnblogs.com/wwp01/p/13934676.html