1.创建文件:/etc/systemd/system/docker.service.d/http-proxy.conf
2.编辑文件http-proxy.conf
[Service]
Environment="HTTP_PROXY=http://YOUR_PROXY_IP:YOUR_PROXY_PORT"
Environment="HTTPS_PROXY=http://YOUR_PROXY_IP:YOUR_PROXY_PORT"
Environment="NO_PROXY=localhost,127.0.0.1"