Talk

Knative and Spring - Bringing back the func

Conference
Java

Kubernetes is now a standard to deploy and manage containerized applications. How do functions fit into the cloud-native space in 2022? What does it take to write a function in Java or any other language and get it up and running in a Kubernetes cluster?


We’ll show with practical examples and a live demo how developers can focus on the business logic while the platform takes care of supporting event-driven and serverless workloads in a polyglot environment.


  • CloudEvents provide a language and transport-agnostic way to describe events.
  • Knative Eventing routes CloudEvents between producers and consumers so that developers don’t have to worry about which message broker is used under the hood (e.g. RabbitMQ, Kafka, cloud-provider specific).
  • Frameworks like Spring Cloud Functions let developers focus on implementing the business logic instead of dealing with infrastructural concerns and integrations with event brokers.
  • GraalVM and libraries like Spring Native make it possible to build serverless applications in Java and take advantage of the scale-to-zero feature offered by Knative Serving.
  • Cloud Native Buildpacks solve the problem of building production-ready containers end to end, offering support for multiple languages and frameworks, and focusing on performance and security.


To demonstrate how all these tools can work together, we will show how Knative `func` combines them and provide developers with a Dockerfile-free and Kubernetes YAML-free experience.

Scheduled on Wednesday from 10:50 to 11:40 (Europe/London) in Gallery Hall

Event-Driven Microservices
KNative
Spring Boot
Cloud Native Java
Kubernetes

Mauricio Salatino

VMware

Mauricio is currently working at the Knative OSS Project as part of the VMWare MAPBU team. He is the author of the Continuous Delivery for Kubernetes book for Manning and he is passionate about Open Source, Cloud Native and Kubernetes. You can always get in touch with him via Twitter @Salaboy.

Thomas Vitale

Systematic

Thomas is a Software Architect specialized in building highly-scalable, resilient, and secure enterprise applications. He develops software solutions at Systematic, Denmark, where he’s been working on modernizing platforms and applications for the cloud-native world, focusing on developer experience and security. Thomas likes contributing to open-source projects like Spring Security and Spring Cloud. He’s the author of “Cloud Native Spring in Action - With Spring Boot and Kubernetes”, published by Manning, where some of his main interests converged, such as Kubernetes, Buildpacks, Knative, and other cloud-native technologies.