Installing Docker

This article explains how to install and uninstall docker community edition in Ubuntu

Installation

1. Add the GPG key for the official Docker repository to the system

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

2. Add the Docker repository to APT sources

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

For Ubuntu 19

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

3. Update

sudo apt-get update

4. Check for policy
apt-cache policy docker-ce

5. Install docker

sudo apt-get install -y docker-ce

6. Check docker version

sudo docker --version

Uninstalling Docker

sudo apt-get purge docker-ce