How to Install Docker on Linux (AlmaLinux Like)

Docker is a tool for running container software. Leveraging containers is a terrific approach for developers and users to worry less about operating system compatibility and dependencies because the bundled software should function similarly on any system.

Update Your System

Before installing Docker on Linux (AlmaLinux), you will need to update your system’s package repositories by using the following commands to ensure you’re getting the latest versions of packages:

sudo dnf update
sudo dnf upgrade

Enable Docker Repository

You can install the yum-utils package using the following command, which provides the yum-config-manager utility to set up repositories:

sudo dnf install yum-utils

Then, you can add the Docker repository using yum-config-manager:

sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

Install Docker on Linux (AlmaLinux) with the dnf Command

Then, you can use the following command to install the most recent version of Docker from the official repository:

sudo dnf install docker-ce docker-ce-cli containerd.io docker-compose-plugin

Start & Enable Docker Service

Once Docker and its dependencies are installed, start and enable its service using the following commands:

sudo systemctl start docker
sudo systemctl enable docker

By using the following command, you can see if the Docker service is running:

sudo systemctl status docker

Check Docker Version

Next, use either of the following commands to check the Docker version:

sudo docker version
docker --version

Add User to Docker User Group

You will be able to add your local user to the docker group so that the user can use docker commands without sudo:

sudo usermod -aG docker $USER

Replace $USER as per your requirement. You can use the following command to see if your user is a member of the docker group:

id $USER

How to Uninstall Docker on AlmaLinux

You can use the following command to uninstall Docker from your AlmaLinux:

sudo dnf remove docker-ce docker-ce-cli containerd.io docker-compose-plugin

Docker images, containers, volumes, or customized configuration files on your AlmaLinux system are not deleted automatically.
You should manually delete all images, containers, and volumes using the following commands:

sudo rm -rf /var/lib/docker
sudo rm -rf /var/lib/containerd