1.centos 7.5 64
2.安装docker
systemctl restart docker.service
注意：重启后才有 /etc/docker/文件夹 切换到这文件夹下再增加对应的daemon.json文件
sudo systemctl daemon-reload
systemctl restart docker.service
sudo systemctl status docker -l
sudo docker info
原文：https://www.cnblogs.com/sos-blue/p/10417611.html