亲测好使

删除老版本的docker

sudo yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-engine

脚本安装

curl -fsSL https://get.docker.com -o get-docker.sh
sudo sh get-docker.sh

参考:
https://docs.docker.com/install/linux/docker-ce/centos/

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