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Using Storage in Docker Kubernetes Service

Kubernetes has the ability to provide external storage for your containerized applications. In this lab, you will be able to work with Kubernetes storage hands-on, designing your own solution to a real-world problem using Kubernetes features. This will help you familiarize yourself with Kubernetes features, such as volumes, and PersistentVolumes.

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Labs

Path Info

Level
Clock icon Intermediate
Duration
Clock icon 30m
Published
Clock icon Apr 27, 2021

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Table of Contents

  1. Challenge

    Create a Persistent Volume

    1. Create a PersistentVolume with a type of hostPath that stores data at the path /etc/output on the host.
    2. Set the capacity to 1Gi.

    Note: that you will need to create and use a custom StorageClass that supports volume resizing since you will need to resize the PersistentVolumeClaim later. For this exercise, you can use the provisioner kubernetes.io/no-provisioner.

  2. Challenge

    Create a Persistent Volume Claim.

    1. Create a PersistentVolumeClaim that will bind to the PersistentVolume. Give it a capacity of 100Mi.

  3. Challenge

    Create a Pod That Will Output Data to the Persistent Volume

    1. Create a pod that uses the image busybox and sends a response to output.log. 
      sh -c while true; do echo "Successfully written to log." >> /output/output.log; sleep 10; done
    2. Mount the PersistentVolumeClaim, so that the data written to /output/output.log by the container shows up in the persistent volume storage.

  4. Challenge

    Resize the Persistent Volume Claim

    1. Increase the size of the PersistentVolumeClaim to 200Mi.
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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