docker的安装与卸载

卸载老版本docker

sudo apt-get remove docker docker-engine docker.io

/var/lib/docker/目录下存放着 images, containers, volumes, and networks

安装docker

$ sudo apt-get update

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

$ 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"

$ sudo apt-get update

$ sudo apt-get install docker-ce

$ sudo docker run hello-world

$sudo docker run hello-world