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

Managing traffic with Istio

Istio offers robust traffic management capabilities that form a core part of its functionality. When leveraging Istio for microservice management within your Kubernetes environment, you gain precise control over how these services communicate with each other. This empowers you to define the traffic path within your service mesh meticulously.

Some of the traffic management features at your disposal are as follows:

  • Request routing
  • Fault injection
  • Traffic shifting
  • TCP traffic shifting
  • Request timeouts
  • Circuit breaking
  • Mirroring

The previous section employed an ingress gateway to enable traffic entry into our mesh and used a virtual service to distribute traffic to the services. With virtual services, the traffic distribution happens in a round-robin fashion by default. However, we can change that using destination rules. These rules provide us with an intricate level of control over the behavior of our mesh, allowing...