Scale a Deployment with Kubernetes

Here are the initial instructions and explanation of the lab environment. Read this while your environment is busy creating itself from nothing. Yes, this violates physics; we know. How fun!

To start the lab, you`ll verify the Kubernetes cluster configuration using kubectl commands.

In this challenge, you’ll create a YAML file for an Nginx deployment. The image is stored locally on the worker node, so we’ll set the image pull policy to ensure Kubernetes uses the local version.

In this challenge, you will practice scaling a Kubernetes Deployment by modifying its manifest file. You will begin by editing the Deployment’s YAML file to increase the number of replicas. After applying the updated manifest, you will verify the changes by inspecting the Deployment and Pods using the appropriate kubectl commands. This exercise will help you understand how to use manifest files to define and manage the desired state of your applications in Kubernetes.

In this challenge, you will dynamically adjust the number of replicas for an existing Kubernetes Deployment using the kubectl scale command. You will first increase the replica count to simulate scaling up for increased demand. Then, you will scale the Deployment back down to its original size to optimize resource usage.

To complete the challenge, you will verify the changes by using kubectl describe and other inspection commands to confirm that the Deployment reflects the desired replica count. This exercise will demonstrate how to efficiently scale applications on-the-fly in a Kubernetes environment.

Welcome to the final challenge! This is your last chance to experiment in the environment. Clicking Finish Lab will end this little world that flittered into existence just for you.