Ubuntu docker安装

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

sudo apt-key fingerprint 0EBFCD88

sudo add-apt-repository 
>    "deb [arch=amd64] https://download.docker.com/linux/ubuntu 
>    $(lsb_release -cs) 
>    stable"

设置docker的镜像仓库，大概

sudo apt-get update

更新源

sudo apt-get install docker-ce docker-ce-cli containerd.io

下载安装

sudo docker run hello-world

验证是否安装成功