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Deploying and Configuring Apps in Kubernetes

Kubernetes is a great tool for running applications. In this lab, you will have a chance to get hands-on with the process of deploying and configuring Kubernetes applications all the way from code to K8s. You will create a Git repository for your code, build a container image for the application using Docker, and run and configure the application in a Kubernetes cluster.

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Path Info

Level
Clock icon Intermediate
Duration
Clock icon 30m
Last updated
Clock icon Sep 01, 2025

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Table of Contents

  1. Challenge

    Create a Codebase Using Git

    Clone the application GitHub repository to the lab server under /home/cloud_user.

    The repository is located at https://github.com/linuxacademy/content-k8sapps-is-it-pirate-day.

    Optionally, you can create your own fork in GitHub (requires a GitHub account) and clone that instead.

  2. Challenge

    Build a Docker Image for the App with All Needed Dependencies

    The source code already includes a Dockerfile, but it is not configured to include the necessary serve package that will be used to serve the static app content.

    Edit the Dockerfile to run the command yarn global add serve during the image build process in order to install this package within the resulting image.

    Then, build a Docker image for the app called <YOUR_DOCKER_HUB_USERNAME>/pirate-day:0.0.1. Push the image to Docker Hub.

  3. Challenge

    Deploy the Application to Kubernetes with the Necessary Config

    Create a ConfigMap called pirate-config with the following data:

    data:
  .env: |
    REACT_APP_PIRATE_MESSAGE='No!'

    Feel free to customize the message value if you wish.

    Create a Pod called pirate-day to run the container image for the app.

    • Attach the label app=pirate-day to the Pod.
    • Mount the pirate-config ConfigMap data to a file within the container at /usr/src/app/.env. This should make the app display the message defined in the ConfigMap data.

    There is a pre-existing Service that will allow you to access the app for testing. Using the Public IP address of the K8s Server, you should be able to access the app in a browser at http://<K8S_SERVER_PUBLIC_IP>:30080 for testing.

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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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