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Designing a Dynamic Admission Controller for Kubernetes

Kuberenetes dynamic admission controllers allows you to validate or mutate your Kubernetes request objects to either approve or deny, or to change the object upon creation. In this hands-on lab, you will create a dynamic admission controller to add labels defined in the deployment file, as well as the needed deployment and registration configurations, and test nodes.

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Path Info

Clock icon Intermediate
Clock icon 45m
Clock icon Mar 30, 2023

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Table of Contents

  1. Challenge

    Write Webhook

    Write a mutating webhook that adds labels to pods upon creation.

  2. Challenge

    Refactor Webhook

    Refactor the webhook so that the labels can be provided in the deployment code.

  3. Challenge

    Deploy Admission Controller

    Create the deployment and registration configurations and apply them.

  4. Challenge

    Test Admission Controller

    Run the webhook against a test pod.

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