Install on ubuntu

Follow instructions on https://docs.docker.com/engine/install/ubuntu/ After adding GPG key and repo you can run

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
sudo docker run hello-world
Hello from Docker!

or you can use convenience script

curl -fsSL https://get.docker.com -o get-docker.sh
sudo sh ./get-docker.sh --dry-run

Uninstall with

sudo apt-get purge docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin docker-ce-rootless-extras
sudo rm -rf /var/lib/docker
sudo rm -rf /var/lib/containerd

To enable users to run use docker engine without sudo and you do not have error permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: https://docs.docker.com/engine/install/linux-postinstall/

sudo usermod -aG docker $USER
  • run ubuntu shell 
    docker run -it ubuntu /bin/bash

https://docs.docker.com/engine/install/linux-postinstall/