November 2019
Intermediate to advanced
322 pages
7h 3m
English
Content preview from The DevOps 2.5 Toolkit
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Extending HorizontalPodAutoscaler with Custom Metrics
Computers make excellent and efficient servants, but I have no wish to serve under them.
- Spock
Adoption of HorizontalPodAutoscaler (HPA) usually goes through three phases.
The first phase is discovery. The first time we find out what it does, we usually end up utterly amazed. "Look at this. It scales our applications automatically. I don't need to worry about the number of replicas anymore."
The second phase is the usage. Once we start using HPA, we quickly realize that scaling applications based memory and CPU is not enough. Some apps do increase their memory and CPU usage with the increase in load, while many others don't. Or, to be more precise, not proportionally. HPA, for some applications, ...
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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.