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Using Init Containers in Kubernetes

Init containers are a great way to customize container startup. This lab will allow you to test your knowledge of init containers by using them to solve problems in an existing Kubernetes cluster.

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Path Info

Clock icon Intermediate
Clock icon 30m
Clock icon Sep 03, 2020

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Table of Contents

  1. Challenge

    Create a Sample Pod That Uses an Init Container to Delay Startup

    You will find a simple pod descriptor on the control plane server at /home/cloud_user/pod.yml. Modify this pod descriptor to add an init container that will delay startup if shipping-svc cannot be located using nslookup. Then, create the pod.

    Note: Please use BusyBox 1.27. Newer releases may encounter complications with nslookup.

  2. Challenge

    Test Your Setup by Creating the Service and Verifying the Pod Starts Up

    Apply the deployment descriptor for the shipping-svc found at /home/cloud_user/shipping-svc.yml. Watch the status of your pod. If you set it up correctly, you should see the pod complete startup once the service becomes available.

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