镜像仓库地址

{
  "builder": {
    "gc": {
      "defaultKeepStorage": "30GB",
      "enabled": true
    }
  },
  "experimental": false,
  "features": {
    "buildkit": false
  },
  "registry-mirrors": [
    "https://docker.m.daocloud.io",
    "https://dockerproxy.com",
    "https://docker.mirrors.ustc.edu.cn",
    "https://docker.nju.edu.cn"
  ]
}