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Scale an Application Up

Explore how to scale a Kubernetes application by editing the Deployment YAML to increase replica count. Learn the reconciliation process where Kubernetes adds Pods to match the desired state. Understand how scaling impacts cluster resource distribution and manage your application deployment effectively.

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Increasing the replicas

In this lesson, we’ll edit the Deployment YAML file, increase the replica count to ten, and re-send the file to Kubernetes. This will kick off the reconciliation process and increase the number of replicas on our cluster to ten.

Before doing this, it’s important to know that the unit of scaling in Kubernetes is the Pod. This means Kubernetes adds Pods to scale up and deletes Pods to scale down. ...