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)

Cloud fundamentals

After talking about Linux, we need to talk about running many computers, not just one. I have spent most of my professional career dealing with IaaS products. In August of 2006, Amazon launched EC2, which is a virtual machines (VMs) as a service product. This was a change from what most people were used to, as most companies had servers running in data centers and had to buy physical hardware to run their product. Now, with a click of a button, you could get servers running and make them do whatever you wanted.

This was the beginning of the cloud and the basic features Amazon Web Services (AWS) offered became common for many future IaaS to offer. Often, these pieces are considered the building blocks for most services. For example, you can often build most cloud products by adding orchestration on top of these basic cloud products: VMs, load balancers (LB), and storage.

The second half of the 2000s were the beginning of boom time for services. Along with IaaS, there were...