dockerfile how to use ubuntu latest code example
Example 1: install docker in ubuntu
$ sudo apt-get remove docker docker-engine docker.io
$ sudo apt-get update
$ sudo apt install docker.io
$ sudo snap install docker
$ docker --version
Example 2: install docker on ubuntu 18.04
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable"