Installation and Setup Installing Docker on Various Platforms: Windows, macOS, and Linux. Basic Docker Commands: docker --version docker help Running

To write a blog on "Installation and Setup of Docker on Various Platforms," follow this guide, which includes instructions for Windows, macOS, and Linux, as well as basic Docker commands and running your first container.

Installation and Setup of Docker on Various Platforms

Docker is a powerful platform for developing, shipping, and running applications inside lightweight containers. Whether you're on Windows, macOS, or Linux, Docker helps you streamline your development process. Here's a step-by-step guide to installing Docker on each platform and getting started with basic Docker commands.

1. Installing Docker

1.1. Installing Docker on Windows

1. System Requirements:

   • Windows 10 or 11 (Pro, Enterprise, Education) with Hyper-V and WSL2 enabled.

   • 64-bit system with 4 GB RAM minimum.

2. Steps:

   • Download Docker Desktop for Windows from Docker’s official site.

   • Run the installer and follow the installation wizard.

   • Ensure WSL 2 and Hyper-V are enabled if prompted by the setup.

   • Once installed, launch Docker Desktop and complete the setup process.

3. Post-Installation:

   • Docker Desktop will start automatically and run in the background.

   • You can verify installation using the docker --version command in PowerShell.

1.2. Installing Docker on macOS

1. System Requirements:

   • macOS 10.14 or newer.

   • 64-bit system with at least 4 GB of RAM.

2. Steps:

   • Download Docker Desktop for macOS from Docker’s official site.

   • Open the downloaded .dmg file and drag the Docker icon into the Applications folder.

   • Open Docker from Applications and follow the setup instructions.

3. Post-Installation:

   • Docker will appear in the menu bar after installation. You can verify it by running the docker --version command in Terminal.

1.3. Installing Docker on Linux

1. System Requirements:

   • A 64-bit system with a kernel version of 3.10 or higher.

2. Steps: For Ubuntu:

   • Update the package list:

   • Update the package list:

       bashCopy codesudo apt-get update
     

   • Install required packages:

       bashCopy codesudo apt-get install ca-certificates curl gnupg
     

   • Add Docker’s official GPG key and repository:

       bashCopy codecurl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
       echo "deb [arch=$(dpkg --print-architecture) 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:

       bashCopy codesudo apt-get update
       sudo apt-get install docker-ce docker-ce-cli containerd.io
     

   • Verify the installation:

       bashCopy codesudo docker --version
     

2. Basic Docker Commands

Once Docker is installed, you can start using basic commands to explore the platform.

2.1. Checking Docker Version

To check the Docker version installed on your system:

bashCopy codedocker --version

This command will display the current Docker version.

2.2. Getting Help with Docker Commands

Docker offers extensive help documentation directly in the CLI:

bashCopy codedocker help

This command provides a list of all available Docker commands and options.

3. Running Your First Docker Container

The quickest way to test if Docker is working correctly is by running the following command:

bashCopy codedocker run hello-world

This command pulls a simple Docker image called hello-world from Docker Hub, creates a container, and runs it. If Docker is set up correctly, you should see a message like:

cssCopy codeHello from Docker!
This message shows that your installation appears to be working correctly.

Conclusion

Docker makes setting up environments easy across multiple platforms. After installation, the docker run hello-world command helps you ensure Docker is functioning as expected. With Docker successfully running, you can start exploring the world of containerization and develop and deploy your applications with ease.