Docker 映象拉取失敗（error pulling image configuration:download failed）

• 修改daemon.json配置

vim /etc/docker/daemon.json

• 輸入i 替換為：

{
  "builder": {
    "gc": {
      "defaultKeepStorage": "20GB",
      "enabled": true
    }
  },
  "experimental": true,
  "features": {
    "buildkit": true
  },
  "insecure-registries": [
    "172.24.86.231"
  ],
  "registry-mirrors": [
    "https://dockerproxy.com",
    "https://mirror.baidubce.com",
    "https://ccr.ccs.tencentyun.com",
    "https://docker.m.daocloud.io",
    "https://docker.nju.edu.cn",
    "https://docker.mirrors.ustc.edu.cn"
  ],
  "log-driver":"json-file",
  "log-opts": {
    "max-size":"500m", 
    "max-file":"3"
  }
}

• 輸入:wq儲存並退出,並重啟服務

sudo systemctl daemon-reload

sudo systemctl restart docker

參考：https://blog.csdn.net/qq_44796920/article/details/139573309?utm_medium=distribute.pc_relevant.none-task-blog-2~default~baidujs_baidulandingword~default-0-139573309-blog-