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Repairing Failed Pods in Kubernetes

As a Kubernetes Administrator, you will come across broken pods. Being able to identify the issue and quickly fix the pods is essential to maintaining uptime for your applications running in Kubernetes. In this hands-on lab, you will be presented with a number of broken pods. You must identify the problem and take the quickest route to resolve the problem in order to get your cluster back up and running.

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Path Info

Level
Clock icon Intermediate
Duration
Clock icon 1h 0m
Last updated
Clock icon Aug 27, 2025

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Table of Contents

  1. Challenge

    Identify the broken pods.

    Use the following command to see what’s in the cluster:

    kubectl get all --all-namespaces

  2. Challenge

    Find out why the pods are broken.

    Use the following command to inspect the pod and view the events:

    kubectl describe pod <pod_name> -n web

  3. Challenge

    Repair the broken pods.

    1. Use the following command to repair the broken pods in the most efficient manner:

      kubectl edit deploy nginx -n web

    2. Where it says image: nginx:191, change it to image: nginx. Save and exit.

    3. Verify the repair is complete:

      kubectl get po -n web

    4. See the new replica set:

      kubectl get rs -n web

  4. Challenge

    Ensure pod health by accessing the pod directly.

    1. List the pods including the IP addresses:

      kubectl get po -n web -o wide

    2. Start a busybox pod:

      kubectl run busybox --image=busybox --rm -it --restart=Never -- sh

    3. Use the following command to access the pod directly via its container port, replacing POD_IP_ADDRESS with an appropriate pod IP:

      wget -qO- POD_IP_ADDRESS:80
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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.

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

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