Install Docker Engine on Debian

Uninstall old versions
Run the following command to uninstall all conflicting packages:
$ for pkg in docker.io docker-doc docker-compose podman-docker containerd runc; do sudo apt-get remove $pkg; done

Install using the apt repository
Before you install Docker Engine for the first time on a new host machine, you need to set up the Docker apt repository. Afterward, you can install and update Docker from the repository.

1.Set up Docker’s apt repository.

Add Docker’s official GPG key:

sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

Add the repository to Apt sources:

echo \
“deb [arch=$(dpkg –print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian \
$(. /etc/os-release && echo “$VERSION_CODENAME”) stable” | \
sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update

2.Install the Docker packages.

Latest Specific version
To install the latest version, run:
$ sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

3.Verify that the installation is successful by running the hello-world image:
$ sudo docker run hello-world

Upgrade Docker Engine
To upgrade Docker Engine, follow step 2 of the installation instructions, choosing the new version you want to install.

https://docs.docker.com/engine/install/debian/#install-using-the-repository