Book Image

Google Cloud for DevOps Engineers

By : Sandeep Madamanchi
Book Image

Google Cloud for DevOps Engineers

By: Sandeep Madamanchi

Overview of this book

DevOps is a set of practices that help remove barriers between developers and system administrators, and is implemented by Google through site reliability engineering (SRE). With the help of this book, you'll explore the evolution of DevOps and SRE, before delving into SRE technical practices such as SLA, SLO, SLI, and error budgets that are critical to building reliable software faster and balance new feature deployment with system reliability. You'll then explore SRE cultural practices such as incident management and being on-call, and learn the building blocks to form SRE teams. The second part of the book focuses on Google Cloud services to implement DevOps via continuous integration and continuous delivery (CI/CD). You'll learn how to add source code via Cloud Source Repositories, build code to create deployment artifacts via Cloud Build, and push it to Container Registry. Moving on, you'll understand the need for container orchestration via Kubernetes, comprehend Kubernetes essentials, apply via Google Kubernetes Engine (GKE), and secure the GKE cluster. Finally, you'll explore Cloud Operations to monitor, alert, debug, trace, and profile deployed applications. By the end of this SRE book, you'll be well-versed with the key concepts necessary for gaining Professional Cloud DevOps Engineer certification with the help of mock tests.
Table of Contents (17 chapters)
1
Section 1: Site Reliability Engineering – A Prescriptive Way to Implement DevOps
6
Section 2: Google Cloud Services to Implement DevOps via CI/CD
Appendix: Getting Ready for Professional Cloud DevOps Engineer Certification

Eliminating toil through automation

Toil was introduced in Chapter 1, DevOps, SRE, and Google Cloud Services for CI/CD, and is defined as the work tied to a production service where the characteristic of that work is manual, repetitive, automatable, tactical, lacks enduring value, and linearly grows with the service. Toil is often confused with overhead, but overhead refers to administrative work that includes email, commute, filing expense reports, and attending meetings. Toil can be both good and bad—it really depends on the amount of toil.

Here are some of the positive sides of performing toil, but in very short and limited amounts:

  • Produces a sense of gratification or a sense of accomplishment
  • Can act as a low-stress or low-risk activity
  • Can be used to train new recruits, especially providing them a chance to learn by being hands-on with the system to learn the inner workings

However, excessive toil can lead to the following problems or issues...