Docker官网 Install Docker Engine on CentOS | Docker Docs

1.查看系统版本，Docker支持CentOS 7及以上版本

cat /etc/redhat-release

2.卸载旧版本

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

3.安装依赖

yum install -y gcc
yum install -y gcc c++
yum install -y yum-utils

4.设置阿里云镜像库

yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

5.安装Docker CE

sudo yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

6.启动 Docker

systemctl start docker

7.验证安装

#查看版本
docker version    

docker run hello-world

docker run hello-world