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

Kubernetes Deployments

Let’s understand Kubernetes Deployments using a simple analogy.

Imagine you’re a chef preparing a particular dish in your kitchen. You want to make sure that it is consistently perfect every time you serve it, and you want to be able to change the recipe without causing a chaotic mess.

In the world of Kubernetes, a “Deployment” is like your sous chef. It helps you create and manage copies of your pods effortlessly.

Here’s how it works:

  • Creating consistency: You want to serve your dish to many guests. Therefore, instead of cooking each plate separately, you prepare a bunch of them at once. All of them should taste the same and strictly as intended. A Kubernetes Deployment does the same for your pod. It creates multiple identical copies of your pod, ensuring they all have the same setup.
  • Updating safely: Now, imagine you have a new twist for your dish. You want to try it out, but you want your guests only...