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对于docker下载过慢问题，修改daemon.json进行相应设置

sudo gedit /etc/docker/daemon.json
#如果vim熟悉也可以用vim

打开界面后，将以下复制进json文件

{"builder": {"gc": {"defaultKeepStorage": "20GB","enabled": true}},"experimental": true,"features": {"buildkit": true},"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"}
}

保存后退出，重启docker

sudo systemctl daemon-reload

sudo systemctl restart docker

完成后如下：

如果依旧有问题，可以尝试修改如下

sudo gedit /etc/resolv.conf

加上nameserver 8.8.8.8

参考文章：Docker 镜像下载加速（error pulling image configuration:download failed）_error response from daemon: error pulling image co-CSDN博客