更换阿里云源

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-8.repo

yum makecache 生成缓存

sudo yum remove docker \

docker-client \

docker-client-latest \

docker-common \

docker-latest \

docker-latest-logrotate \

docker-logrotate \

docker-engine

sudo yum install -y yum-utils

sudo yum-config-manager \

--add-repo \

https://download.docker.com/linux/centos/docker-ce.repo

sudo yum install docker-ce docker-ce-cli containerd.io

docker --version

sudo systemctl start docker

sudo docker run hello-world

更改docker安装源为阿里云

sudo yum-config-manager \

--add-repo \

https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

安装指定版本

yum list docker-ce --showduplicates | sort -r

sudo yum install docker-ce-19.03.15 docker-ce-cli-19.03.15 containerd.io