Rahul Sharma - Traefik API Gateway for Microservices: With Java and Python Microservices Deployed in Kubernetes

Any source code or other supplementary material referenced by the author in this book is available to readers on GitHub via the books product page, located at www.apress.com/978-1-4842-6375-4 . For more detailed information, please visit http://www.apress.com/source-code .

Microservice architecture has brought dynamism to the application ecosystem. New services are built and deployed while older ones are deprecated and removed from the enterprise application estate. But front-end load balancers havent been able to adapt to the components in the enterprise architecture. Most current load balancers have a static configuration. They require configuration updates as the application landscape changes. Thus, there are operational complexities when working with microservices. These are a few of the challenges of getting a microservices-based solution to work. The dynamic nature of the ecosystem requires dynamic tools that can autoconfigure themselves.

Traefik bases its foundations on the dynamic nature of the Microservice architecture. It has built first-class support for service discovery, telemetry, and resiliency. It is a modern HTTP reverse proxy and load balancer that eases microservices deployment. Its integration has been great, with many existing tools.

The book covers Traefik setup, basic workings, and integration with microservices. It is intended for developers, project managers, and DevOps personnel interested in solutions for their operational challenges. The book is not specific to any programming language, even though all the examples use Java or Python.

This book would not have been possible without the support of many people. I would like to take this opportunity and express my gratitude to each of them.

I would like to thank Divya Modi for believing in the project and making it work. She has been instrumental in starting the project. Moreover, during the project, her editorial support provided a constant push throughout the process. It would have been difficult to deliver the project without your support.

I would like to thank Celestin Suresh John for providing me this wonderful opportunity. Your guidance made sure that we got the correct path outlined from the start.

I would like to thank Brijesh Pant and Laura C. Berendson for sharing valuable feedback. Your advice has helped to deliver the ideas in a better manner.

I would also like to thank my co-author Akshay Mathur for his knowledge and support. Your experience and willingness have made this a successful project. The brainstorming sessions we had helped to express the ideas.

I wish to thank my parents, my loving and supportive wife, Swati, and my son, Rudra. They are a constant source of encouragement and inspiration. Thanks for providing the time and listening to my gibberish when things were not working according to the plan.

About the Authors

Rahul Sharma

is a seasoned Java developer with over 15 years of industry experience. In his career, he has worked with companies of various sizes, from enterprises to start-ups. During this time, he has developed and managed microservices on the cloud (AWS/GCE/DigitalOcean) using open source software. He is an open-source enthusiast and shares his experience at local meetups. He has co-authored Java Unit Testing with JUnit 5 (Apress, 2017) and Getting Started with Istio Service Mesh (Apress, 2019).

Akshay Mathur