SHELL

install docker on debian

Delete any outdated packages: 
sudo apt-get purge docker lxc-docker docker-engine docker.io

Update the default respository: 
sudo apt-get update

Download the following dependencies: 
sudo apt-get install apt-transport-https ca-certificates curl gnupg2 software-properties-common

Download Docker’s official GPG key to verify the integrity of packages
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -

Add the Docker repository to your system repository
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian buster stable"

Update the apt repository:
sudo apt-get update

Install Docker Engine and containerd:
sudo apt-get install docker-ce docker-ce-cli containerd.io

Check the status by typing:
systemctl status docker

Another way to check the installation:
docker -v

Optional: Verify the Installation With a Hello World Image
docker run hello-world

To remove docker:
sudo apt-get purge docker-ce
sudo rm -rf /var/lib/docker

how to run debian on docker

docker run -it debian