Modern Spring Based Microservices on Kubernetes

Adib Saikali - VMware

Since 2014 Spring has been the leading framework for building microservices in the Java ecosystem. A lot has changed over the past 8 years in both the Spring ecosystem and wider cloud ecosystem. Kubernetes has matured and become widely available on public and private clouds, giving us an industry standard foundation for managing microservices. GraphQL and gRPC offer new possibilities for exposing API endpoints. Service Meshes, Serverless functions give us many more options for implementing and architecting microservices.

Unfortunately the internet is full of old blog posts and stackoverflow answers recommending out of date approaches to building microservices in Spring. This hands-on workshop is an up-to-date look at how to build microservice based applications using the latest generation of Spring projects running on Kubernetes.

The workshop consists of a series of sample applications which implement modern microservice architecture patterns in Spring using various approaches so you can select the approach that works best for your situation.

Technologies covered in the workshop:

1. Declarative clients (New feature in Spring 6)
2. GraphQL (New feature in Spring 6)
3. Spring Authorization Server (Customizable OIDC server)
4. Spring Cloud Gateway
5. Spring Cloud Sleuth
6. Spring Cloud Function
7. Observability with Micrometre 2 and Spring Framework 6
8. How to effectively containerize Spring Boot apps
9. How to effectively run Spring Boot apps on Kubernetes
10. Understand Ahead-of-Time(AOT) and Native Images in Spring Boot 3.0

Architectural topics that we will discuss

1. Service discovery
2. Traffic routing
3. API Gateways vs. Service Mesh
4. Workload identity vs. User Identity
5. Securing microservices
6. Kubernetes native service discovery vs. Netflix Eureka
7. Kubernetes native configuration vs. Spring Cloud Config
8. GraphQL vs. REST
9. Serverless Functions vs. Long Running Processes

Come learn how to use new capabilities introduced in Spring Framework 6, Spring Boot 3, and Spring Cloud 2022, running on Kubernetes, to design and implement modern microservices.