Challenge, Hard,  on  Kubernetes
ProblemSolutionDiscussion

Pods are one of the most important and well-known concepts in Kubernetes. But did you know that pods can become "invisible"?

An instance of podinfo is running in a Kubernetes cluster as a single pod.

kubectl on dev-machine is already configured to connect to the cluster.

However, when you list the pods in the cluster, you won't see the pod:

kubectl get pods -A

Your task is to make the pod visible through the API server without restarting either the pod or the API server.

Challenge on Kubernetes
Discussion  Discord
kubeletpod

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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 kubernetes-invisible-pod-0bf2109b

This will create a local copy of the challenge content in a directory named kubernetes-invisible-pod-0bf2109b. You only need to do this once per challenge.

Stream your changes

labctl content push -fw challenge kubernetes-invisible-pod-0bf2109b

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