Preface: In fact, the installation steps of Docker official website is very detailed, if some people are not good at looking at English slower, you can directly look at me, I am also from the official website, the specific steps are as follows
1. Install dependency packages
$ sudo yum install -y yum-utils \ device-mapper-persistent-data \ lvm2
2. Install the yum Library
$ sudo yum-config-manager \ --add-repo \ https://download.docker.com/linux/centos/docker-ce.repo
3.Install the latest version of Docker
$ sudo yum install docker-ce
4. Start Docker
$ sudo systemctl start docker
5. Verification
$ docker version
The installation process is very fast. It can be done in 5 minutes. Go ahead and try it.