Docker is an application that allows us to deploy programs that are run as containers. It was written in the popular Go programming language. This tutorial explains how to install Docker CE, and has been tested on: * Ubuntu 18.04 LTS * Ubuntu 18.10 * Ubuntu 20.04 LTS Older versions of Docker were called `docker`, `docker.io` or `docker-engine`. If these are installed in your machine, uninstall them: sudo apt-get remove docker docker-engine docker.io containerd runc Let’s make sur......