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Using Microservices in Kubernetes

One of the greatest strengths of Kubernetes is how it simplifies networking from the perspective of an application designer. In this lab, you will have the chance to explore microservice design in Kubernetes by wiring an application to its backing services. You will also be able to smoothly perform a rolling update on this application using the architecture you have built.

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Path Info

Level
Clock icon Intermediate
Duration
Clock icon 30m
Last updated
Clock icon Sep 02, 2025

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Table of Contents

  1. Challenge

    Implement the Backing Service

    The application relies on a backing web service. The Pod(s) for the backing service are already running in the cluster, and they have the label app=pirate-day-backend. The backing service application listens on port 3000. Create a NodePort Service called pirate-day-backend-svc for this backing service with the nodePort 30081.

  2. Challenge

    Set Up the Kubernetes Deployment

    Create a Deployment called pirate-day-dep to run the app with 3 replicas. Include the label app=pirate-day-frontend on each Pod. An existing NodePort Service will allow access to the app using this label at http://<K8s_SERVER_PUBLIC_IP>:30080.

    Use the image linuxacademycontent/pirate-day:0.0.2.

    A ConfigMap already exists in the cluster called pirate-config. This ConfigMap contains a top-level key called .env that represents the configuration file for the app. Mount this config data as a file to the containers at /usr/src/app/.env. This will ensure the frontend points to the correct URL for the backing service.

  3. Challenge

    Perform a Rolling Update

    Perform a rolling update to update the app to a new version. Change the Deployment to use the image linuxacademycontent/pirate-day:0.0.3.

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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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