- A Cloud Guru
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.
Table of Contents
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-svccannot be located using
nslookup. Then, create the pod.
Note: Please use BusyBox 1.27. Newer releases may encounter complications with nslookup.
Test Your Setup by Creating the Service and Verifying the Pod Starts Up
Apply the deployment descriptor for the
/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.
What's a lab?
Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.