Ubuntu 18.04 安装Docker-ce

一、 安装证书

$ sudo apt-get install \
apt-transport-https \
ca-certificates \
curl \
software-properties-common

二、添加Docker源的KEY

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

三、 添加Docker软件包源

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

四、更新apt包索引

$ sudo apt-get update

五、安装Docker CE

$ sudo apt-get install docker-ce

六、测试安装成功

root@ubuntu18_04:~# docker --version
Docker version 19.03.8, build afacb8b7f0