阿里云安装dockerErrors during downloading metadata for repository 'docker-ce-stable': - Status code: 404 for https://download.docker.com/linux/centos/3/x86_64/stable/repodata/repomd.xml (IP: 13.249.162.1

直接上方法
cd /etc/yum.repos.d/

rm -rf docker-ce.repo

之后参照这个文档安装daocker

部署并使用Docker