Docker 系列教程：在Ubuntu 上安裝Docker 分步圖文指南

資料來源：https://mp.weixin.qq.com/s/u9aMG9PwHQV46tJGwMdimA

重點摘要:

$ sudo apt update
$ sudo apt install apt-transport-https ca-certificates curl gnupg software-properties-common

$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
$ sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
$ sudo apt update
$ sudo apt install docker-ce docker-ce-cli containerd.io

$ systemctl is-active docker