January 2025
Beginner to intermediate
120 pages
1h 43m
English
Content preview from Quick Start Kubernetes - Third Edition
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8: Scaling the app
In this chapter, you’ll scale the app up and down. The methods you’ll learn are manual and require a human to implement them. In the real world, you’ll use objects like the Horizontal Pod Autoscaler (HPA) to make scaling automatic. These are beyond the scope of a quick start book, but the things you’ll learn here will serve as a solid foundation for more advanced techniques.
I’ve split the chapter as follows.
- Pre-requisites
- Scale an application up
- Scale an application down
- The role of labels
- Declarative vs imperative
Pre-requisites
If you’ve been following along, you’ll already have a single Deployment managing five replicas of the app you containerized in Chapter 5. You’ll also have a Kubernetes Service providing networking ...
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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.