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Using Multiple Containers in a Kubernetes Pod

Multi-container Pods in Kubernetes use additional containers within the same Pod to solve technical challenges. This lab will allow you to get hands-on with multi-container Pods. You will build expertise as you design your own multi-container Pod in order to address a real-world issue.

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Path Info

Level
Clock icon Intermediate
Duration
Clock icon 30m
Last updated
Clock icon Aug 31, 2025

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Table of Contents

  1. Challenge

    Update the Service to Use the New Port

    There is a Service called hive-svc located in the default Namespace. Modify this service so that it listens on port 9076.

  2. Challenge

    Add an init Container to Delay Startup

    The app is managed by the app-gateway Deployment located in the default Namespace. Add an init container to the Pod template so that startup will be delayed by 10 seconds. You can do this by using the busybox:stable image and running the command sh -c sleep 10.

  3. Challenge

    Add an Ambassador Container to Make the App Use the New Service Port

    Find the app-gateway Deployment located in the default Namespace. Add an ambassador container to the Deployment's Pod template using the haproxy:2.4 image.

    Supply the ambassador container with an haproxy configuration file at /usr/local/etc/haproxy/haproxy.cfg. There is already a ConfigMap called haproxy-config in the default Namespace with a pre-configured haproxy.cfg file.

    You will need to edit the command of the main container so that it points to localhost instead of hive-svc.

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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.

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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!

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