{
  "builder": {
    "gc": {
      "defaultKeepStorage": "100GB",
      "enabled": true
    }
  },
  "dns": [
    "8.8.8.8",
    "1.1.1.1"
  ],
  "experimental": false,
  "features": {
    "containerSharing": false
  },
  "registry-mirrors": [
    "https://docker.m.daocloud.io",
    "https://registry.docker-cn.com",
    "https://hub-mirror.c.163.com"
  ]
}

使用教程：