Installing Docker

Introduction

Docker is a platform for developing, shipping, and running applications in isolated environments called containers. Before you can build or run containers, you must install the Docker Engine on your machine.

Windows and macOS

For most users on Windows and macOS, the easiest way to get started is by installing Docker Desktop.

Docker Desktop is an easy-to-install application that includes the Docker Engine, Docker CLI client, Docker Compose, and a graphical user interface.

1. Go to the official Docker website.
2. Download the installer for your operating system.
3. Run the installer and follow the on-screen instructions.
4. Once installed, launch Docker Desktop. It will run in the background.

Linux (Ubuntu)

For Linux servers, you should install the Docker Engine directly via the command line, rather than using Docker Desktop.

# Update the apt package index
sudo apt-get update

# Install prerequisites
sudo apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

# Add Docker’s official GPG key
sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

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

# Install Docker Engine
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin

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