拉取docker run hello-world失败

1、拉取docker run hello-world失败

root@ubuntu:/home/zzj# docker run hello-world
Unable to find image 'hello-world:latest' locally
docker: Error response from daemon: Get "https://registry-1.docker.io/v2/": net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers).
See 'docker run --help'.

• 配置镜像

  • 到/etc/docker 路径下新建一个daemon.json文件；具体指令为:

    • sudo touch daemon.json
      

  • 将以下地址粘贴进daemon.json

    • {"registry-mirrors": ["https://docker.m.daocloud.io","https://dockerproxy.com","https://docker.mirrors.ustc.edu.cn","https://docker.nju.edu.cn"]
      }
      

• 重启docker

  • sudo systemctl daemon-reload
    sudo systemctl restart docker