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Docker Installation on Ubuntu

Docker Installation on Ubuntu: A Comprehensive Guide

Aim :

Install Docker Engine on Ubuntu.

Docker Installation Steps

Step 1: Set Up Docker Repository

  • Update existing package information: 
    sudo apt-get update
  • Install required packages: 
    sudo apt-get install ca-certificates curl
  • Create a directory for Docker's GPG key: 
    sudo install -m 0755 -d /etc/apt/keyrings
  • Download Docker's official GPG key: 
    sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
  • Set permissions for the GPG key: 
    sudo chmod a+r /etc/apt/keyrings/docker.asc
  • Add Docker's repository to Apt sources: 
    echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
$(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
  • Update package information again: 
    sudo apt-get update

Step 2: Install Docker Packages

  • Install the latest version of Docker: 
    sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

Step 3: Verify Docker Installation

  • Confirm Docker installation by checking the Docker version: 
    sudo docker --version

Verification:

To ensure Docker is properly installed, check the version output. This confirms Docker is operational on your system.

For more information, visit the official Docker installation guide.

Written by: A.M.Rinas

Contact: mohomadrinas00@gmail.com

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