curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://a9cd99d0.m.daocloud.io Copy

该脚本可以将 --registry-mirror 加入到你的 Docker 配置文件 /etc/default/docker 中。适用于 Ubuntu14.04、Debian、CentOS6 、CentOS7、Fedora、Arch Linux、openSUSE Leap 42.1,其他版本可能有细微不同。更多详情请访问文档


如果允许后,报出:

Cannot connect to the Docker daemon. Is the docker daemon running on this host?
[root@localhost /]# service docker start
Redirecting to /bin/systemctl start  docker.service
Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details.


那么修改方案为:

[root@localhost /]# cd /etc/docker/
[root@localhost docker]# ls
certs.d  daemon.json  daemon.json.bak  key.json
[root@localhost docker]# vim daemon.json
{"registry-mirrors": ["http://a9cd99d0.m.daocloud.io"],"storage-driver":"devicemapper"}

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