January 2025
Beginner to intermediate
120 pages
1h 43m
English
Content preview from Quick Start Kubernetes - Third Edition
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7: Self-healing
In this chapter, you’ll learn about the Kubernetes Deployment object and use it to make the sample app resilient.
I’ve arranged the chapter as follows:
- Intro to Kubernetes Deployments
- Self-heal from an app failure
- Self-heal from an infrastructure failure
Intro to Kubernetes Deployments
Kubernetes has lots of objects that add features and capabilities. You’ve already used a Service object to add networking, and you’re about to use a Deployment object to add self-healing (resiliency). In the upcoming chapters, you’ll expand the same Deployment object to enable scaling and rolling updates.
As with Pods and Services, you define Deployments in YAML manifest files.
Figure 7.1 shows the Deployment manifest we’ll use. It’s marked up ...
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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.