docker install on ubuntu 14.04 server

1:$ sudo apt-get update (刷新系统源)

2:$ sudo apt-get install -y apt-transport-https ca-certificates curl software-properties-common(安装相关软件包及依赖包)

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

4:$ sudo apt-key fingerprint 0EBFCD88

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

6:$ sudo apt-get update

7:$ sudo apt-get install docker-ce(安装docker-ce)

8:$ sudo apt-cache madison docker-ce

9:$ sudo docker run hello-world