How To Install Docker CE On Ubuntu 24.04 LTS

On this article we will learn how to install Docker Community Edition (CE) on Ubuntu 24.04 (Noble Numbat) Linux operating system. Docker is an open-source platform that enables developers to automate the deployment of applications in lightweight, portable containers. This guide will walk you through the installation of Docker on Ubuntu.

The Docker installation on Ubuntu 24.04 (Noble Numbat) will be consist of several steps as mentioned beolow :

• Prerequisites
• Step 1: Update System Packages
• Step 2: Install Required Dependencies
• Step 3: Add Docker’s Official GPG Key
• Step 4: Add the Docker Repository
• Step 5: Install Docker Engine
• Step 6: Verify the Installation
• Step 7: Run Docker Without Sudo (Optional)

Prerequisites

Before installing Docker, ensure that you have:

• A system running Ubuntu 24.04 LTS Linux operating system.
• A user account with sudo privileges.
• An updated package index.

Step 1: Update System Packages

It is always recommended to update your system before installing new software. Run the following command:

sudo apt update && sudo apt upgrade -y

Step 2: Install Required Dependencies

To ensure smooth installation, install the necessary dependencies:

sudo apt install -y ca-certificates curl gnupg

Step 3: Add Docker’s Official GPG Key

To verify the authenticity of the Docker package, add its GPG key:

sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo tee /etc/apt/keyrings/docker.asc > /dev/null
sudo chmod a+r /etc/apt/keyrings/docker.asc

Step 4: Add the Docker Repository

Run the following command to add the official Docker repository:

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

Now update the package list to include Docker’s repository:

sudo apt update

Step 5: Install Docker Engine

Now install Docker with:

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

Step 6: Verify the Installation

After installation, check if Docker is running:

sudo systemctl start docker
sudo systemctl enable docker

Confirm the installed version:

docker --version

Run a test container to verify Docker is working correctly:

sudo docker run hello-world

If you see a message confirming successful installation, Docker is working properly.

Step 7: Run Docker Without Sudo (Optional)

By default, Docker requires root privileges. To run Docker as a non-root user, add your user to the Docker group:

sudo usermod -aG docker $USER

Apply the changes without logging out:

newgrp docker

Now, you can run Docker commands without sudo.

docker ps

Step 8: Enable Docker to Start on Boot

To ensure Docker starts automatically at boot, enable the service:

sudo systemctl enable docker

Conclusion

You have successfully installed Docker on Ubuntu. You can now start using Docker to deploy and manage containers efficiently. If you encounter any issues, check the official Docker documentation for further guidance.

Happy containerizing! 🚀