Troubleshooting a Broken Kubernetes Cluster

30 minutes
  • 2 Learning Objectives

About this Hands-on Lab

Every Kubernetes administrator will likely need to deal with a broken cluster at some point, whether a single node or the entire cluster is down. In this lab, you will be able to practice your troubleshooting skills. You will be presented with a broken Kubernetes cluster and asked to use your investigative skills to identify the problem and fix it.

Learning Objectives

Successfully complete this lab by achieving the following learning objectives:

Determine What is Wrong with the Cluster

Explore the cluster and determine which node is having issues. Then see if you can determine what is causing the node to fail.

Fix the Problem

Fix the issue with the broken node. Make sure your fix will keep the node working, even if the node is restarted again.

Additional Resources

Your company, BeeBox, has a new Kubernetes cluster that was just built by an outside contractor. Last night, someone restarted the servers used to run this cluster. Ever since the restart, some of your team members are reporting issues with one of the worker nodes. Unfortunately, the contractor is no longer working with the company, so you will need to find and fix the problem.

Explore the cluster and determine what is causing the issues. Then take steps to fix the problem and ensure that it does not happen again.

What are Hands-on Labs

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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