centos8.1安裝docker

在使用centos8.1安裝docker時相比centos7版本會遇到一些問題，所以記錄下方便其他的同學。

Uninstall old versions

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

Install using the repository

$ sudo yum install -y yum-utils $ sudo yum-config-manager \ --add-repo \ https://download.docker.com/linux/centos/docker-ce.repo 
###安裝docker-ce時會需要這個包，所以要先裝好。
yum install https://download.docker.com/linux/fedora/30/x86_64/stable/Packages/containerd.io-1.2.6-3.3.fc30.x86_64.rpm

Install Docker Engine

$ sudo yum install docker-ce  -y
$ sudo systemctl start docker
$ sudo systemctl enbale docker
$ sudo docker run hello-world