Challenge, Easy,  on  Kubernetes

Resolve ContainerCreating Issue Caused by Missing ConfigMap

Scenario

A Deployment named web-hydrogen in the hydrogen namespace has Pods stuck in ContainerCreating state because a required ConfigMap is missing.

The file /home/laborant/web-hydrogen.html contains the HTML content needed by the application.

Fix the issue and make the application accessible via NodePort 30099.

Tasks

Create the missing ConfigMap configmap-web-hydrogen-html in the hydrogen namespace using /home/laborant/web-hydrogen.html with key index.html.

# Test application
curl http://cplane-01:30099

💡 Test Cases

How to Author Challenges on iximiuz Labs

Instead of providing a subpar online editing experience, iximiuz Labs offers a helper CLI tool called labctl, allowing you to use your favorite text editor (or a full-featured IDE) to write content from the comfort of your local machine.

Install labctl CLI

curl -sf https://labs.iximiuz.com/cli/install.sh | sh

This will download and install the latest version of the labctl CLI. You only need to do this once per workstation.

Authorize labctl

labctl auth login

This will open a browser window asking you to authorize labctl to access your account. You need to do it after a fresh install of labctl and repeat it whenever the auth session expires.

Pull challenge content

labctl content pull challenge troubleshoot-missing-configmap-and-expose-static-website-via-nodeport-56a1380b

This will create a local copy of the challenge content in a directory named troubleshoot-missing-configmap-and-expose-static-website-via-nodeport-56a1380b. You only need to do this once per challenge.

Stream your changes

labctl content push -fw challenge troubleshoot-missing-configmap-and-expose-static-website-via-nodeport-56a1380b

Run this command in a separate terminal to continuously upload your changes to the server while editing the challenge in your favorite text editor or IDE.

You can also use labctl to create, list, and delete your content. Learn more about the available commands: labctl content --help

Start challenge