Docker Installation and Configuration

Check System Requirements

Ensure your system meets the following requirements:

Windows 10 64-bit: Pro, Enterprise, or Education (Build 15063 or later)
Enable Hyper-V and Containers Windows features

Download and Install Docker Desktop

Visit Docker Desktop for Windows and download the installer.
Run Docker Desktop Installer.exe to start the installation process.

Installation Steps

Double-click the Docker Desktop Installer.exe to launch the installer.
When prompted, authorize the installer to proceed.
Follow the on-screen instructions to complete the installation.
When the installation is complete, Docker Desktop will prompt you to enable Hyper-V and Containers features if they are not already enabled. Click OK to enable these features, and then restart your computer if prompted.

Configure Docker

After your computer restarts, open Docker Desktop from the Start menu.
In Docker Desktop, click on the gear icon (Settings) in the top-right corner.
Go to the General tab and ensure Use the WSL 2 based engine is checked.
Apply and restart Docker Desktop if necessary.

Verify Installation

Open Command Prompt or PowerShell.
Run the command:
```
docker --version
```
This command should display the installed Docker version.
Run a test container:
```
docker run hello-world
```
This command will download and run the hello-world container, displaying a confirmation message.

For more details, visit the Docker Desktop for Windows documentation.

Check System Requirements

Ensure your system meets the following requirements:

macOS 10.15 or newer

Download and Install Docker Desktop

Visit Docker Desktop for Mac and download the installer appropriate for your Mac (Intel or Apple Silicon).
Double-click the Docker.dmg file to open the installer.

Installation Steps

Drag the Docker icon to the Applications folder.
Open Docker Desktop from the Applications folder.
Docker Desktop will prompt you for permissions and to enter your password to install its components. Authorize and provide your password when prompted.

Configure Docker

Once Docker Desktop is running, click on the Docker icon in the top status bar and select Preferences.
Adjust settings in tabs such as General, Resources (CPU, Memory, Disk), and File Sharing based on your needs.

Verify Installation

Open Terminal.
Run the command:
```
docker --version
```
This command should display the installed Docker version.
Run a test container:
```
docker run hello-world
```
This command will download and run the hello-world container, displaying a confirmation message.

For more details, visit the Docker Desktop for Mac documentation.

Uninstall Old Versions

If you have older versions of Docker installed, remove them:

sudo apt-get remove docker docker-engine docker.io containerd runc

Set Up the Docker Repository

Update the apt package index:
```
sudo apt-get update
```

Install packages to allow apt to use a repository over HTTPS:

sudo apt-get install apt-transport-https ca-certificates curl gnupg lsb-release

Add Docker’s official GPG key:

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

Set up the stable repository:

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

Install Docker Engine

Update the apt package index again:
```
sudo apt-get update
```
Install the latest version of Docker Engine, Docker CLI, and containerd:
```
sudo apt-get install docker-ce docker-ce-cli containerd.io
```

Start and Enable Docker

Start Docker:
```
sudo systemctl start docker
```
Enable Docker to start at boot:
```
sudo systemctl enable docker
```

Verify Installation

Run the command:
```
sudo docker --version
```
This command should display the installed Docker version.
Run a test container:
```
sudo docker run hello-world
```
This command will download and run the hello-world container, displaying a confirmation message.

Optional: Manage Docker as a Non-Root User

Create the docker group if it does not exist:
```
sudo groupadd docker
```
Add your user to the docker group:
```
sudo usermod -aG docker $USER
```
Log out and log back in so that your group membership is re-evaluated.

For more details, visit the Docker Engine installation documentation for Linux.