Horizontal scaling for the Kubernetes Cluster is represented via two implementations:
- platform-managed horizontal scaling – allows adding/removing Kubernetes nodes. Based on your needs, you can configure scaling triggers to automate this process based on resource utilization.
- Kubernetes-managed Horizontal Pod Autoscaler – scales deployments up/down based on observed CPU utilization
With both of these horizontal scaling methods, the Kubernetes Cluster always has nodes available (when needed) and healthy application pods.
Tip: An extended real case example (WordPress) on the Kubernetes Cluster Scaling is provided within the linked article.
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