Installing Docker with Brew: Step-by-Step Guide

Are you a macOS user looking to leverage the power of Docker for your development or deployment needs? Look no further! Docker, the popular containerization platform, allows you to package, distribute, and run applications in lightweight, isolated environments called containers. With Docker, you can easily manage dependencies, improve scalability, and streamline the deployment process.

If you’re new to Docker and want to install it on your macOS system, you’re in luck. In this step-by-step guide, we’ll walk you through the process of installing Docker on macOS using Brew, a package manager for macOS that simplifies software installation.

Before we begin, let’s make sure you have Brew installed on your system. Open up your Terminal and enter the command brew –version. If Brew is not installed, you can install it by following the instructions on the official Brew website. Once Brew is installed, you’re ready to proceed with the Docker installation.

First, open up your Terminal and enter the following command to update Brew’s package list:

brew update

This will ensure that Brew has the latest information about available packages. Next, enter the following command to install Docker:

brew install docker

Once the installation is complete, you can verify that Docker is installed correctly by entering the following command:

docker --version

If you see the version number of Docker displayed, congratulations! You’ve successfully installed Docker on your macOS system. Now you can start exploring the world of containerization and take advantage of everything Docker has to offer.

In conclusion, installing Docker on macOS using Brew is a simple and straightforward process. By following the steps outlined in this guide, you can quickly set up Docker on your system and begin reaping the benefits of containerization for your development or deployment workflow.

Prerequisites

Before you can install Docker on macOS using Brew, make sure you have the following prerequisites:

• macOS: Docker is compatible with macOS Mojave (10.14) or later versions. Make sure your macOS is up to date.
• Homebrew: Brew is a package manager for macOS that allows you to easily install and manage software. Before installing Docker, you need to have Homebrew installed. If you don’t have Homebrew, you can install it by following the instructions on the Homebrew website.
• Xcode command-line tools: Docker requires Xcode command-line tools to build certain components. You can install these tools by opening a terminal and running the command xcode-select --install. Follow the prompts to complete the installation.

Once you have these prerequisites in place, you can proceed to the next steps to install Docker on macOS using Brew.

Step 1: Install Brew

To begin the installation process, you first need to install Homebrew (also known as Brew). Homebrew is a package manager for macOS that allows you to easily install and manage software packages.

1. Open Terminal

Open the Terminal application on your macOS. You can do this by pressing Command + Space and then typing “Terminal” and hitting Enter.

2. Install Brew

Once you have the Terminal open, you can install Brew by pasting the following command and pressing Enter:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

This command downloads the installation script for Homebrew and executes it.

During the installation process, you may be prompted to enter your macOS user password. Enter the password and press Enter to proceed with the installation.

After the installation is complete, you should see a message indicating that Homebrew has been successfully installed. You can test this by running the following command and checking the output:

brew --version

If Homebrew is installed correctly, you should see the version number of Homebrew in the output.

Congratulations! You have successfully installed Homebrew on your macOS. Now you can proceed to the next step and install Docker.

Step 2: Update Brew

Before we proceed with installing Docker on macOS using Brew, it is essential to ensure that Brew is up-to-date.

Updating Brew

To update Brew, open the Terminal application on your macOS device. In the Terminal, type the following command and press Enter:

brew update

This command updates the Brew package manager and ensures that you have the latest version available.

Checking the Updated Version

To verify that Brew has been successfully updated, you can use the following command in the Terminal:

brew --version

After running this command, the Terminal should display the current version of Brew installed on your system.

Updating Brew is an important step to ensure that you have the latest updates and bug fixes. It is recommended to update Brew before installing any new software packages, such as Docker.

Step 3: Install Docker

Now that you have Homebrew installed, you can easily install Docker using Brew. Follow the below steps to install Docker on macOS:

1. Open the Terminal app by searching for it in Spotlight or navigating to Applications/Utilities/Terminal.
2. Type the following command to update Homebrew and its formulae:

brew update

3. After Homebrew has been updated, run the command below to install Docker:

brew install docker

During the installation process, you may be prompted to enter your computer’s password. Type in your password and press Enter to continue.

4. Once the installation is complete, verify that Docker has been installed correctly by running the following command:

docker --version

If Docker has been installed successfully, you should see the version number displayed in the Terminal.

Congratulations! You have now successfully installed Docker on your macOS using Brew.

Note: If you encounter any issues during the installation process, refer to Docker’s official installation documentation for troubleshooting guidelines.

Question-Answer:

What is Docker and why should I install it on my macOS?

Docker is a popular platform that allows you to build, package, and distribute applications using containers. Installing Docker on your macOS can be beneficial as it enables you to run and manage containers on your local machine, making it easier to develop, test, and deploy applications.

Is it necessary to have Homebrew installed before installing Docker on macOS?

Yes, it is recommended to have Homebrew installed on your macOS before installing Docker. Homebrew is a package manager that allows you to easily install and manage software packages. It simplifies the process of installing Docker and its dependencies, ensuring a smooth installation.

Can I use Docker on macOS without virtualization?

No, Docker on macOS requires virtualization. Docker uses a lightweight virtualization technology called HyperKit to run containers. HyperKit is based on the same technology used by Xhyve, Apple’s virtualization framework. Virtualization is necessary to create and manage isolated environments for running containers on macOS.

Video:

Install Docker Using Brew On Mac