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Creating Dev and Production Images with Packer in Parallel

One of the primary benefits of using Packer to build your images is it can create multiple images in parallel, allowing you to use the same baseline to provision things such as both development and production images. In this lab, we'll take a Packer template set to create a web instance and add the ability to provision a Docker image.

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Path Info

Level
Clock icon Intermediate
Duration
Clock icon 30m
Last updated
Clock icon Aug 06, 2025

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Table of Contents

  1. Challenge

    Add the Docker Builder

    1. Open the provided packer.json file.
    2. Add the Docker builder to specification.
    3. Save and exit.

  2. Challenge

    Refactor the Provisioners

    1. Since we start Apache in the builder section of the Docker build, we need to remove that part of the provided script, then add it again so it runs only on the Amazon EBS builder. Let's first open the script.
    2. Remove the systemctl commands.
    3. Add them as an inline shell provisioner, solely for the AWS builder.

  3. Challenge

    Test the Build

    1. Update the AWS access key and subnet information.
    2. Save and exit the file.
    3. Test the build.
Pluralsight Skills - Labs - Pluralsight
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Pluralsight Skills

Pluralsight Skills gives leaders confidence they have the skills needed to execute technology strategy. Technology teams can benchmark expertise across roles, speed up release cycles and build reliable, secure products. By leveraging our expert content, skill assessments and one-of-a-kind analytics, keep up with the pace of change, put the right people on the right projects and boost productivity. It's the most effective path to developing tech skills at scale.

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

Provided environment for hands-on practice

We will provide the credentials and environment necessary for you to practice right within your browser.

Guided walkthrough

Follow along with the author’s guided walkthrough and build something new in your provided environment!

Did you know?

On average, you retain 75% more of your learning if you get time for practice.
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