## 创建配置文件 
sudo mkdir -p /etc/systemd/system/docker.service.d
sudo vim /etc/systemd/system/docker.service.d/http-proxy.conf

## 设置代理参数
[Service]
Environment="HTTP_PROXY=http://proxy.example.com:8080/"
Environment="HTTPS_PROXY=http://proxy.example.com:8080/"
Environment="NO_PROXY=localhost,127.0.0.1,.example.com"

## 加载设置
sudo systemctl daemon-reload
sudo systemctl restart docker

## 查看设备
sudo systemctl show --property=Environment docker