What is pod scaling in Kubernetes and how does it work?

What is pod scaling in Kubernetes and how does it work?

Pod scaling in Kubernetes refers to the ability to increase or decrease the number of pod replicas in a deployment based on demand. This ensures that your application can handle varying loads efficiently.

How do I manually scale a pod in Kubernetes?

You can manually scale a pod using the kubectl scale command. For example, kubectl scale deployment my-deployment --replicas=5 will scale your deployment to 5 replicas.

What are the benefits of automatic pod scaling?

Automatic pod scaling, or Horizontal Pod Autoscaling, adjusts the number of pods based on CPU utilization or other select metrics, ensuring optimal resource usage and cost efficiency.

Can you explain the difference between vertical and horizontal scaling?

Vertical scaling involves increasing the resources (CPU, memory) of existing pods, while horizontal scaling adds more pod replicas to distribute the load.