Book Image

Software Architecture Patterns for Serverless Systems - Second Edition

By : John Gilbert
Book Image

Software Architecture Patterns for Serverless Systems - Second Edition

By: John Gilbert

Overview of this book

Organizations undergoing digital transformation rely on IT professionals to design systems to keep up with the rate of change while maintaining stability. With this edition, enriched with more real-world examples, you’ll be perfectly equipped to architect the future for unparalleled innovation. This book guides through the architectural patterns that power enterprise-grade software systems while exploring key architectural elements (such as events-driven microservices, and micro frontends) and learning how to implement anti-fragile systems. First, you'll divide up a system and define boundaries so that your teams can work autonomously and accelerate innovation. You'll cover the low-level event and data patterns that support the entire architecture while getting up and running with the different autonomous service design patterns. This edition is tailored with several new topics on security, observability, and multi-regional deployment. It focuses on best practices for security, reliability, testability, observability, and performance. You'll be exploring the methodologies of continuous experimentation, deployment, and delivery before delving into some final thoughts on how to start making progress. By the end of this book, you'll be able to architect your own event-driven, serverless systems that are ready to adapt and change.
Table of Contents (16 chapters)
Other Books You May Enjoy

Integrating with legacy systems

Delivering new business value at a faster pace is the major goal of digital transformation. Achieving this goal usually involves migrating off existing (that is, legacy) systems. This migration process does not happen overnight. Therefore, it is crucial that we do not put the existing systems at risk. They need to continue to deliver business value until they are retired.To provide this continuity of business, we follow an event-first migration approach that iteratively adds new business value and incrementally upgrades existing features, until we no longer need the legacy systems. We refer to this approach as the Strangler pattern. We will discuss the business value supporting this approach in Chapter 13, Don't Delay, Start Experimenting. In this section, we will cover the tactical aspects of integrating with a legacy system.There are two main objectives for this approach:We do not want to modify the existing systems, if at all possible. This is consistent...