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

Why GitOps?

GitOps provides us with the following benefits:

  • It deploys better software more quickly: GitOps offers simplicity in delivering software. You don’t have to worry about what tool you need for the deployment type. Instead, you can commit your changes in Git, and the behind-the-scenes tooling automatically deploys it.
  • It provides faster recovery from errors: If you happen to make an error in deployment (for example, a wrong commit), you can easily roll it back using git revert and restore your environment. The idea is that you don’t need to learn anything else apart from Git to do a rollout or a rollback.
  • It offers better credential management: With GitOps, you don’t need to store your credentials in different places for your deployments to work. You simply need to provide the tooling access to your Git repository and the binary repository, and GitOps will take care of the rest. You can keep your environment completely secure by restricting...