centos 7 docker升级


安装官方文档操作:

官方升级网站
使用下列命令设置 stable 镜像仓库 这一步报超时,然后就没法往下走了
[root@localhost lib]# sudo yum-config-manager \
--add-repo \
https://download.docker.com/li ... .repo

Loaded plugins: fastestmirror
adding repo from: https://download.docker.com/li ... .repo
grabbing file https://download.docker.com/li ... .repo to /etc/yum.repos.d/docker-ce.repo
Could not fetch/save url https://download.docker.com/li ... .repo to file /etc/yum.repos.d/docker-ce.repo: [Errno 12] Timeout on https://download.docker.com/li ... repo: (28, 'Operation timed out after 30001 milliseconds with 0 out of 0 bytes received')
[root@localhost lib]#
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