1、 执行 yum install docker-ce docker-ce-cli containerd.io报错
- Status code: 404 for https://download.docker.com/linux/centos/3/x86_64/stable/repodata/repomd.xml (IP: 13.32.54.18) Error: Failed to download metadata for repo 'docker-ce-stable': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried
解决：经排差是linux版本太低，坑爹
