docker无法拉取镜像的解决办法：

镜像加速：

https://do.nark.eu.org

https://github.com/DaoCloud/public-image-mirror

执行下面命令添加镜像站点：

sudo mkdir -p /etc/docker

sudo tee /etc/docker/daemon.json <<EOF

{

  "registry-mirrors": [

    "https://docker.fxxk.dedyn.io",

    "https://huecker.io",

    "https://dockerhub.timeweb.cloud",

    "https://noohub.ru"



  ]

}

EOF

sudo systemctl daemon-reload

sudo systemctl restart docker

参考：

• docker国内镜像源配置及走代理设置