yum安裝依賴包
yum -y instll yum-utils device-mapper-persistent-data lvm2
獲取下載20.x版本docker源
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
yum安裝docker-ce
yum -y install docker-ce
啟動docker
systemctl start docker
systemctl status docker
查看dockers版本
docker --version
Docker version 20.10.7, build f0df350
下載並啟動hello-world查看是否成功
docker run hello-world
latest: Pulling from library/hello-world
b8dfde127a29: Pull complete
Digest: sha256:5122f6204b6a3596e048758cabba3c46b1c937a46b5be6225b835d091b90e46c
Status: Downloaded newer image for hello-world:latest
Hello from Docker!
This message shows that your installation appears to be working correctly.