How to Install and Use Docker on Debian 12 Linux

To deploy, manage, and run the application without any hassle of an operating system, Docker is the best option. An open-source application known as Docker offers containers for managing applications and due to their light-weight, these containers can be used on any OS and machine.

Similar to virtual machines, the containers are used for virtualization but due to their lightweight nature, they are easy to use. In this tutorial, we will go through how to install and use Docker on Debian 12.

What are the Methods to Install Docker on Debian 12?

Docker can be installed on Debian 12 using one of the mentioned methods:

  1. Using the Default Repository
  2. Using the Docker Repositories

Method 1: Install Docker on Debian 12 Using the Default Repository

Below-mentioned steps should be used to install Docker from the default repository of Debian 12 with an apt package manager.

Step 1: Update the Packages

Update the packages to ensure the installation of Docker from its updated package:

$ sudo apt update

Step 2: Install Docker

Now install the Docker on Debian after updating the packages:

$ sudo apt install -y

Docker has been installed on Debian 12 using the package from its default repository. 

What is the Method to Remove the Docker on Debian 12?

To remove and uninstall the package of Docker, execute the command:

$ sudo apt purge -y

Method 2: Install Docker on Debian 12 Using the Docker Repositories

Another method of installing Docker is by using its official repository. The advantage of this method is that the latest release of “Docker” is installed on the computer by the next-mentioned steps. 

Step 1: Store the Keyrings

First store the keyrings by creating the directory of “keyrings” at /etc/apt/ path:

$ sudo install -m 0755 -d /etc/apt/keyrings

Step 2: Download the GPG Key

Next download the GPG key to the newly created directory using the curl command utility:

$ curl -fsSL | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

Step 3: Enable the GPG Keys for Execution

Now make the downloaded GPG key executable by running the command:

$ sudo chmod a+r /etc/apt/keyrings/docker.gpg

Step 4: Addition of the Docker Repository

In this step, we will add the official repository to the default repository of Debian 12:

$ echo "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg]   "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" |   sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

Step 5: Update the Repository

Now update the Debian’s repository:

$ sudo apt update

Step 6: Install Docker on Debian 12

Finally, install Docker on Debian 12:

$ sudo apt install docker-ce docker-ce-cli docker-buildx-plugin docker-compose-plugin -y

Step 7: Verify the Installation

To verify the installation of the Docker, display its installed version:

$ docker --version

How to Configure the Docker on Debian 12?

After the successful installation of the Docker on Debian 12, execute the below steps to configure the Docker. 

Step 1: Add the Group

To configure the Docker, first create the “docker” group:

$ sudo groupadd docker

Step 2: Add the User

Now add the user to the “docker” group. For example, add the user “john” to the “docker” group:

$ sudo usermod -aG docker john

Step 3: Start the Docker

After adding the user to the “docker” group, start the docker:

$ sudo systemctl start docker

Step 4: Enable the Docker

Enable the docker with the execution of the command:

$ sudo systemctl enable docker

Step 5: Display the Status

After starting and enabling the “Docker”, confirm its status:

$ sudo systemctl status docker

How to Use Docker on Debian 12?

The basic usage of the docker has been explained with commands in the next section. 

Run Docker:

To run the new containers, use the “docker run” command, for example, run the “hello-world” container:

$ sudo docker run hello-world

Display Running Containers:

Use the command for displaying the running containers:

$ sudo docker ps

Display all the Container:

Run the command to display both, running and not running containers:

$ sudo docker ps -a

Display the Docker Images:

To display the docker images that are available on the machine:

$ sudo docker images

Download Docker Image:

To download the docker images from the Docker hub to the local machine, use the pull command, for example, download the docker image of Ubuntu’s latest version:

$ sudo docker pull ubuntu

Stop Container:

To stop the running container, run the command:

$ sudo docker stop [container name]

Start Container:

To start the stopped container again, execute the command:

$ sudo docker start [container name]

Restart the Container:

If the container is supposed to be restarted:

$ sudo docker restart [container name]

Remove Docker Image:

If the docker image is supposed to be removed, then use the command:

$  sudo docker rm [container name]

This is all about the installation and usage of Docker on Debian 12. 


After updating Debian packages, execute the command “sudo apt install -y” to install Docker on Debian 12. Also, docker can be installed by adding its official repository from its website. This post explains both the installation method of Docker on Debian 12 and its basic configuration. The basic usage of Docker has also been explained with its commands.