$ vim /usr/lib/systemd/system/docker.service
[Service]
Environment="HTTPS_PROXY=http://vps.sarehart.com:28888"
Environment="NO_PROXY=127.0.0.0/8,10.10.10.0/24"
$ systemctl daemon-reload
$ systemctl enable docker
$ systemctl start docker原文：https://blog.51cto.com/feixiangyumao/2394826