How to Install Docker on Ubuntu

In today’s fast-paced technological landscape, Docker has emerged as a powerful tool for developers and sysadmins alike. It allows you to package, distribute, and manage applications in lightweight containers. If you’re using Ubuntu, a popular Linux distribution, you’re in luck. This article will guide you through the straightforward process of installing Docker on your Ubuntu system.

Step 1: Update Package Repositories

Before diving into the Docker installation, it’s a good practice to update your system’s package repositories. Open up your terminal and type in the following command:

sudo apt update

Step 2: Install Prerequisites

Docker requires a few prerequisites to ensure its smooth functioning. Let’s install them using this command:

sudo apt install apt-transport-https ca-certificates curl software-properties-common

Step 3: Add Docker Repository

To get the latest Docker version, you’ll want to add the Docker repository. Execute these commands one by one:

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg echo "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

Step 4: Install Docker Engine

Now comes the exciting part – installing Docker Engine. Run these commands to complete the installation:

sudo apt update sudo apt install docker-ce

Step 5: Start and Enable Docker

You’re almost there! Start the Docker service and enable it to start on boot using these commands:

sudo systemctl start docker sudo systemctl enable docker

Step 6: Verify Docker Installation

To make sure Docker is up and running, run a simple “Hello World” container:

sudo docker run hello-world

Conclusion

Congratulations! You’ve successfully installed Docker on your Ubuntu system. This versatile tool opens up a world of possibilities for managing and deploying applications in a more efficient and isolated manner. Now you’re all set to explore the world of containers and take your development projects to the next level. Happy coding!