Book Image

Modern DevOps Practices - Second Edition

By : Gaurav Agarwal
Book Image

Modern DevOps Practices - Second Edition

By: Gaurav Agarwal

Overview of this book

DevOps and the cloud have changed how we look at software development and operations like never before, leading to the rapid growth of various DevOps tools, techniques, and practices. This updated edition helps you pick up the right tools by providing you with everything you need to get started with your DevOps journey. The book begins by introducing you to modern cloud-native architecture, and then teaches you about the architectural concepts needed to implement the modern way of application development. The next set of chapters helps you get familiarized with Git, Docker, Kubernetes, Ansible, Terraform, Packer, and other similar tools to enable you to build a base. As you advance, you’ll explore the core elements of cloud integration—AWS ECS, GKE, and other CaaS services. The chapters also discuss GitOps, continuous integration, and continuous delivery—GitHub actions, Jenkins, and Argo CD—to help you understand the essence of modern app delivery. Later, you’ll operate your container app in production using a service mesh and apply AI in DevOps. Throughout the book, you’ll discover best practices for automating and managing your development lifecycle, infrastructure, containers, and more. By the end of this DevOps book, you'll be well-equipped to develop and operate applications using modern tools and techniques.
Table of Contents (24 chapters)
1
Part 1:Modern DevOps Fundamentals
6
Part 2:Container Orchestration and Serverless
10
Part 3:Managing Config and Infrastructure
14
Part 4:Delivering Applications with GitOps
18
Part 5:Operating Applications in Production

Running distributed applications in production

So far, we’ve been discussing KPIs for running an application in production, taking inspiration from SRE principles. Now, let’s understand how we will put these thoughts in a single place to run a distributed application in production.

A distributed application or a microservice is inherently different from a monolith. While managing a monolith revolves around ensuring all operational aspects of one application, the complexity increases manyfold with microservices. Therefore, we should take a different approach to it.

From the perspective of SRE, running a distributed application in production entails focusing on ensuring the application’s reliability, scalability, and performance. Here’s how SREs approach this task:

  • SLOs: SREs begin by defining clear SLOs that outline the desired level of reliability for the distributed application. SLOs specify the acceptable levels of latency, error rates, and...