Installing docker on ubuntu 20.04

In this lesson, I will show you how to install Docker on a Linux Ubuntu operating system. 

 

Reload Local repository:

sudo apt-get update

Install prerequisite packages:

sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    software-properties-common

 

Add GPG key of Docker:

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

Check the key:

sudo apt-key fingerprint 0EBFCD88

 

Add docker repository to APT:

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

 

Update apt packages and install docker-engine:

sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io

 

Check docker version:

docker --version

 

Uninstall Docker:

sudo apt-get purge docker-ce docker-ce-cli containerd.io

sudo rm -rf /var/lib/docker