Guilherme Camposo - Cloud Native Integration with Apache Camel: Building Agile and Scalable Integrations for Kubernetes Platforms

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Building integration is a challenging task done by system architects and developers. Besides the complexity of intermediating the communication of at least two different systems, there is the necessity of adding complementary tools into the mix, like databases, message brokers, and access control tools, plus having to handle the integration tool itself. I want to support you in this challenge.

In Cloud Native Integration With Apache Camel, you will learn how to use an integration tool named Apache Camel. Youll learn how to integrate it with a database, a message broker, and how to deal with access control. Well also discuss architecture and integration practices.

In the first chapter, you will learn the basis for your cloud native integration journey: how to build integration routes with Apache Camel and Quarkus. You will also understand the reason behind some decisions made for this approach to integration.

Chapter is about the most popular cross-application communication architecture: REST APIs. You will see how to expose a route using REST and how to declare OAS definitions.

Chapter describes how to secure and consume REST APIs using an open standard protocol, in this case OpenID Connect. You will learn a little bit about Keycloak, an identity and access management solution, and use it to work on access control.

In Chapter , I will show you how to access relational databases using Camel and Quarkus. You will also see how to work with transactions and how to properly handle exceptions in your integration routes.

Chapter is related to asynchronous communication using message brokers. For the examples, you will use Apache Kafka, a very popular open-source message broker streaming platform. Good practices on declaring routes and approaches in unit tests will also be explored.

The last chapter focuses on how to deploy your integration application to Kubernetes and the good practices you must be aware of before putting the application into production. You will see how easy it is to test locally and how using Quarkus will make your development process really fast.

There are a bunch of patterns, architectures, and technologies to explore in this book. The knowledge you will gain will enable you to face the most common challenges in integration, so you will know everything you need to get started. I hope you enjoy this content as much as I enjoyed writing it. See you in Chapter .

Ive always thought I should write a book. In my current profession, I often have to teach or explain a variety of technologies. Ive also taught Java classes in the past but I never really tried to prepare myself to write a book. For that I would like to thank Divya Modi and Apress Media LLC for reaching out and giving me the amazing opportunity to write this book. I also would like to thank my friend Rodrigo Ramalho for doing a great job on this books technical review, and all my colleagues and clients who influence me every day to keep studying and sharing knowledge.