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02-Docker Installation

This guide demonstrates script-based installation of Docker on a Linux system, including system preparation, installation, permission configuration, and verification.

1. Update System Software​

Before installing Docker, ensure your system packages are up to date to avoid dependency and compatibility issues.

sudo apt update && sudo apt upgrade

System Update .

2. Official Script Installation​

Docker provides an official installation script that simplifies setup.

2.1 Install curl​

The installation script is downloaded using curl. Install it if it is not already available:

sudo apt install curl -y

2.2 Download the Docker Installation Script​

sudo curl -fsSL https://get.docker.com -o get-docker.sh

2.3 Run the Installation Script​

Run the script with root privileges:

sudo sh get-docker.sh

Docker will be installed automatically along with all required dependencies.

Docker Installation

3. Configure User Permissions​

By default, Docker commands require sudo. To allow the current user to run Docker commands without sudo, add the user to the docker group:

sudo usermod -aG docker $USER
newgrp docker

After running these commands, log out and log back in if required.

Docker Permissions

4. Verify Installation​

Verify that Docker is installed correctly:

docker --version

If the Docker version is displayed, the installation was successful.

This documentation is maintained by HemiHex for containerized development environments.