July 2022
Intermediate to advanced
408 pages
8h 58m
English
Content preview from Rancher Deep Dive
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Chapter 13: Scaling in Kubernetes
In this chapter, we'll be covering scaling your Kubernetes cluster. We'll go over the three main ways of doing so: with the Horizontal Pod Autoscaler (HPA), Vertical Pod Autoscaler (VPA), and Cluster Autoscaler. We will cover the pros and cons and some examples of each of these ways, as well as diving into the best practices for each method.
In this chapter, we're going to cover the following main topics:
- What is an HPA?
- What is a VPA?
- What is Kubernetes Cluster Autoscaler?
What is an HPA?
An HPA is a controller within a controller manager. An HPA automatically scales pods in replication controllers, deployments, replica sets, or stateful sets based on CPU usage (or custom metrics). Objects that cannot be ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.