Book Image

Real-World SRE

By : Nat Welch
Book Image

Real-World SRE

By: Nat Welch

Overview of this book

Real-World SRE is the go-to survival guide for the software developer in the middle of catastrophic website failure. Site Reliability Engineering (SRE) has emerged on the frontline as businesses strive to maximize uptime. This book is a step-by-step framework to follow when your website is down and the countdown is on to fix it. Nat Welch has battle-hardened experience in reliability engineering at some of the biggest outage-sensitive companies on the internet. Arm yourself with his tried-and-tested methods for monitoring modern web services, setting up alerts, and evaluating your incident response. Real-World SRE goes beyond just reacting to disaster—uncover the tools and strategies needed to safely test and release software, plan for long-term growth, and foresee future bottlenecks. Real-World SRE gives you the capability to set up your own robust plan of action to see you through a company-wide website crisis. The final chapter of Real-World SRE is dedicated to acing SRE interviews, either in getting a first job or a valued promotion.
Table of Contents (13 chapters)


In this chapter, we talked about the basics of business finance. We mentioned a bunch of finance jargon that is useful to know. We explained why we need a plan. We also walked through the four steps of creating and executing a capacity plan. Finally, we talked about how engineering and finance decisions can affect each other and cause ripples throughout the company.

This is all important to SRE, because a lack of capacity causes service downtime. By working with your coworkers, you can improve your long-term reliability by having a plan to deal with future outages. Remember to first define what your current capacity is, see how it's changing over time, and then get access to the budget to make sure you can handle the predicted growth.

In the next chapter, we will be talking about building tools to improve reliability!