Helper script from docker.com
sudo sh <(curl -fsSL https://get.docker.com)
This is basically what is going on under the hood of the script above...
Update packages
sudo apt-get update
sudo apt-get install ca-certificates curl gnupg lsb-release
Add docker official gpgkey
sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
Setup repo
echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
Install docker engine
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin
Startup Test
sudo service docker start
To uninstall Docker and Docker desktop
sudo apt-get purge docker-ce docker-ce-cli containerd.io -y
sudo rm -rf /var/lib/docker
sudo rm -rf /var/lib/containerd