How to Install Docker on Ubuntu?

Easy setup guide to install docker on Ubuntu.

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Step-1 Update Package Index

sudo apt update

Step 2: Install Dependencies to Enable HTTPS APT

java -version

Step 3: Add Docker’s GPG Key

openjdk version "21.0.1" 2023-10-17

Step 4: Set Up the Stable Docker Repository

wget -q -O - https://pkg.jenkins.io/debian/jenkins-ci.org.key | sudo apt-key add -

Step 5: Install Docker Engine

sudo apt update

sudo apt install docker-ce docker-ce-cli containerd.io

Step 6: Check Docker Version

sudo docker version

Step 7: Verify the Docker Installation

sudo docker run hello-world

This command downloads a test image and runs a container. If everything is set up correctly, you should see a “Hello from Docker!” message indicating that your Docker installation is working.

Step 7: Manage Docker as a Non-Root User (Optional)

If you want to avoid using sudo each time you run a Docker command, you can add your user to the docker group:

sudo usermod -aG docker $USER

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