Ubuntu 20.04 ARM64安装Docker

1.准备Ubuntu
系统：Ubuntu 20.04.2 ARM64
2.更新apt
sudo apt-get update

3.安装基本软件
sudo apt-get install curl wget apt-transport-https ca-certificates software-properties-common

4.添加docker密钥
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
对比：
sudo apt-key fingerprint 0EBFCD88

5.添加源
sudo add-apt-repository "deb [arch=arm64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"

6.更新apt，安装docker
sudo apt-get update
sudo apt-get install docker-ce

查看docker状态：
systemctl status docker