Challenge, Easy,  on  Kubernetes

Keep Pods Healthy with Liveness and Readiness Probes

Scenario

A namespace named space already exists.A Deployment named app-deployment is running in this namespace.The application inside the Pods listens on port 80.

Add a readiness probe that checks the HTTP path /readyz.Set initialDelaySeconds to 2 and periodSeconds to 5.

Add a liveness probe that checks the HTTP path /healthz.Set initialDelaySeconds to 5, periodSeconds to 10, and failureThreshold to 3.

Apply the changes to the Deployment in the space namespace.Verify that the Deployment updates successfully.Check the Deployment logs to confirm Apache is running.

Review the logs and verify that the /readyz endpoint and all /healthz endpoints are returning HTTP 200 OK responses.

💡 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 keep-pods-healthy-with-liveness-and-readiness-probes-07714b87

This will create a local copy of the challenge content in a directory named keep-pods-healthy-with-liveness-and-readiness-probes-07714b87. You only need to do this once per challenge.

Stream your changes

labctl content push -fw challenge keep-pods-healthy-with-liveness-and-readiness-probes-07714b87

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