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

Understanding the Istio architecture

Istio simplifies microservices management through two fundamental components:

  • Data plane: This comprises the sidecar envoy proxies that Istio injects into your microservices. These proxies take on the essential role of routing traffic between various services, and they also collect crucial telemetry data to facilitate monitoring and insights.
  • Control plane: The control plane serves as the command center, instructing the data plane on how to route traffic effectively. It also handles the storage and management of configuration details, making it easier for administrators to interact with the sidecar proxy and take control of the Istio service mesh. In essence, the control plane functions as the intelligence and decision-making hub of Istio.

Similarly, Istio manages two types of traffic:

  • Data plane traffic: This type of traffic consists of the core business-related data exchanged between your microservices. It encompasses...