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Complete Docker Setup for AlmaLinux, Alpine, Rocky Linux, Ubuntu, CentOS, Debian, Fedora

MaxReseller
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Docker has become the industry standard for running applications in lightweight, portable containers. Whether you’re using a Linux distribution like AlmaLinux, Alpine, Rocky Linux, Ubuntu, CentOS, Debian, Fedora, or even FreeBSD, setting up Docker is quick and straightforward. In this guide, we’ll walk you through the complete Docker installation process step by step, so you can get started with containerized applications on your favorite operating system.

Why Use Docker?

Docker has become one of the most popular tools for developers, sysadmins, and businesses because it makes building, deploying, and running applications easier than ever. Here are some key reasons to use Docker:

  1. Lightweight & Fast – Docker containers share the host OS kernel, making them faster and more resource-efficient than virtual machines.

  2. Portability – Build once, run anywhere. A Docker container runs the same on your laptop, a cloud server, or a data center.

  3. Simplified Deployment – Package your app with all its dependencies into a single container, ensuring consistency across environments.

  4. Scalability – Works seamlessly with orchestration tools like Kubernetes and Docker Swarm to scale applications quickly.

  5. Isolation & Security – Each container runs in its own isolated environment, reducing conflicts between applications.

  6. DevOps Friendly – Perfect for CI/CD pipelines, automated testing, and microservices architecture.

  7. Huge Ecosystem – Access thousands of pre-built images on Docker Hub for databases, programming languages, web servers, and more.

In short: Docker saves time, reduces errors, and ensures your applications run consistently everywhere.

How to Install Docker on AlmaLinux

Docker can be installed on AlmaLinux using the official Docker repository. Follow these steps:

Step 1: Update Your System

sudo dnf update -y

Step 2: Install Required Packages

sudo dnf install -y yum-utils device-mapper-persistent-data lvm2

These packages allow you to manage repositories and storage drivers needed for Docker.

Step 3: Add the Docker Repository

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

(Docker uses the CentOS repo for AlmaLinux.)

Step 4: Install Docker Engine

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

Step 5: Start and Enable Docker

sudo systemctl start docker
sudo systemctl enable docker

Step 6: Verify Docker Installation

sudo docker --version

How to Install Docker on Alpine Linux

Alpine Linux is a lightweight distribution, so installing Docker is straightforward using its package manager, apk.

Step 1: Update Your System

sudo apk update
sudo apk upgrade

Step 2: Install Docker

sudo apk add docker

This installs the Docker engine and CLI tools.

Step 3: Start and Enable Docker

sudo rc-update add docker boot
sudo service docker start

Step 4: Verify Docker Installation

docker --version

How to Install Docker on Rocky Linux

Rocky Linux is a RHEL-based distribution, so installing Docker is very similar to AlmaLinux or CentOS.

Step 1: Update Your System

sudo dnf update -y

Step 2: Install Required Packages

sudo dnf install -y yum-utils device-mapper-persistent-data lvm2

These packages help manage repositories and storage drivers required for Docker.

Step 3: Add the Docker Repository

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

(Docker uses the CentOS repo for Rocky Linux.)

Step 4: Install Docker Engine

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

Step 5: Start and Enable Docker

sudo systemctl start docker
sudo systemctl enable docker

Step 6: Verify Docker Installation

docker --version

How to Install Docker on Ubuntu

Ubuntu provides an easy way to install Docker using the official Docker repository.

Step 1: Update Your System

sudo apt update
sudo apt upgrade -y

Step 2: Install Required Packages

sudo apt install -y ca-certificates curl gnupg lsb-release

These packages are needed to add Docker’s official GPG key and repository.

Step 3: Add Docker’s GPG Key

sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

Step 4: Add Docker Repository

echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

Step 5: Install Docker Engine

sudo apt update
sudo apt install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

Step 6: Start and Enable Docker

sudo systemctl start docker
sudo systemctl enable docker

Step 7: Verify Docker Installation

docker --version

How to Install Docker on CentOS

CentOS is a RHEL-based distribution, so installing Docker is very similar to AlmaLinux and Rocky Linux.

Step 1: Update Your System

sudo yum update -y

Step 2: Install Required Packages

sudo yum install -y yum-utils device-mapper-persistent-data lvm2

These packages help manage repositories and storage drivers needed for Docker.

Step 3: Add the Docker Repository

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

Step 4: Install Docker Engine

sudo yum install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

Step 5: Start and Enable Docker

sudo systemctl start docker
sudo systemctl enable docker

Step 6: Verify Docker Installation

docker --version

How to Install Docker on Debian

Debian allows installing Docker using the official Docker repository for a stable and up-to-date setup.

Step 1: Update Your System

sudo apt update
sudo apt upgrade -y

Step 2: Install Required Packages

sudo apt install -y ca-certificates curl gnupg lsb-release

These packages are needed to add Docker’s official GPG key and repository.

Step 3: Add Docker’s GPG Key

sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

Step 4: Add Docker Repository

echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian \
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

Step 5: Install Docker Engine

sudo apt update
sudo apt install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

Step 6: Start and Enable Docker

sudo systemctl start docker
sudo systemctl enable docker

Step 7: Verify Docker Installation

docker --version

How to Install Docker on Fedora

Fedora provides an easy way to install Docker using the official Docker repository.

Step 1: Update Your System

sudo dnf update -y

Step 2: Install Required Packages

sudo dnf install -y dnf-plugins-core

This package allows you to manage additional repositories easily.

Step 3: Add the Docker Repository

sudo dnf config-manager --add-repo https://download.docker.com/linux/fedora/docker-ce.repo

Step 4: Install Docker Engine

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

Step 5: Start and Enable Docker

sudo systemctl start docker
sudo systemctl enable docker

Step 6: Verify Docker Installation

docker --version

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