Level-up your testing with Chaos Engineering. Learn how pushing your programs to failure can help you plan your improvements.

DevOps for Developers

Let’s face it, bad things happen in software engineering, often when you least expect it. Servers go down, there are spikes in traffic, you receive networking errors. Luckily, you can avoid these problems. Enter chaos engineering.
Chaos engineering is where you try to find the limits of a system and simulate adverse effects that might happen. These simulations then help you to determine the best way to improve your system and build up its resiliency.
This course is divided into various sections to get you used to the different types of experiments you can run in chaos engineering. You will start by learning how to destroy application instances in order to show you the importance of scaling, fault tolerance, and high availability.
You will then dive deep into other types of experiments such as destroying a network, draining and deleting nodes, and testing availability. Towards the end of the course, you will learn how to run experiments in a Kubernetes cluster.

Kubernetes Chaos Engineering

From now on, everything we do will be hands-on, and I will run and execute a lot of commands. We might be changing the contents of some files, and we might do some light coding. We'll see.

I expect you to follow all the exercises, and there are two general ways how you can do that. You can read and type all the commands, or you might copy and paste. If you prefer the latter, I will provide Gists for this chapter and for all those that follow. You can use it to copy and paste. Trust me, that’s easier than reading the commands from a book and typing them into your terminal.

> All the commands from this chapter are available in the [03-terminating-pods.sh](https://gist.github.com/419032bc714cc31cd2f72d45ebef07c7) Gist.

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In the next lesson, you will be provided with instructions to create a Kubernetes cluster across different platforms.

The gist containing all commands from this chapter is given in this lesson.

Gist with Commands