A Polyglot Developer Experience on Kubernetes - KubeCon EU Valencia
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1) Mauricio Salatino and Thomas Vitale gave a presentation on building applications using serverless functions and event-driven architectures with Knative on Kubernetes. 2) They demonstrated developing polyglot functions with Knative that are triggered by events using CloudEvents and can be deployed without Docker or YAML files. 3) The presentation included an example of building a multiplayer quiz game as a set of synchronous and asynchronous Knative functions that communicate through events to track scores and progress.
A Polyglot Developer Experience on Kubernetes - KubeCon EU Valencia
- 1. Mauricio Salatino & Thomas Vitale KubeCon + CloudNativeCon Europe May 18th, 2022 A Polyglot Developer Experience on Kubernetes Docker-less and YAML-less @salaboy @vitalethomas
- 2. Mauricio Salatino VMware - Knative OSS • a.k.a @Salaboy • Sta ff Engineer - Knative Eventing tech lead for VMware • Knative OSS core contributor • Passionate about Functions, Platforms, Open Source and Kubernetes • salaboy.com
- 3. Systematic • Software Architect at Systematic, Denmark. • Author of “Cloud Native Spring in Action” (Manning). • Spring Security and Spring Cloud contributor. Thomas Vitale thomasvitale.com @vitalethomas
- 4. Quiz Game thomasvitale.com @vitalethomas @salaboy @vitalethomas Building applications using functions
- 6. Serverless Architectures Developers focus on code Focus on business logic @salaboy @vitalethomas Developer Platform Infrastructure Provisioning Workload Management Dynamic Scaling
- 7. Knative Serving Serverless Containers on Kubernetes Developer-friendly abstractions From code to URL Autoscaling Scaling to zero Progressive Rollouts Request-driven Event-driven @salaboy @vitalethomas Cloud agnostic
- 9. Demo thomasvitale.com @vitalethomas @salaboy @vitalethomas Knative Serving and Buildpacks - From code to URL
- 10. Platform 1 - Serverless experience From containers to deployment with autoscaling @salaboy @vitalethomas Image pack kn URL Kubernetes Cluster Container Container Container Knative Serving
- 12. Functions Functional programming model Triggered by requests or events Stateless Smaller scope Cold start Cost optimization @salaboy @vitalethomas
- 13. Functions Patterns Topologies for functional programming @salaboy @vitalethomas Asynchronous processing Event-based Data stream via chained functions Synchronous Asynchronous Fire and Forget Request/ Response Request/ Response (State)
- 14. Demo thomasvitale.com @vitalethomas @salaboy @vitalethomas Knative Functions - From idea to URL
- 15. More on Knative Functions In active development, join the community! External templates repository Run locally with func run On-cluster build, no Docker required Roadmap to 1.0 GA @salaboy @vitalethomas Works with multiple languages and frameworks
- 16. Platform 2 - Polyglot Functions From idea to deployment with autoscaling @salaboy @vitalethomas URL func create Image func deploy Kubernetes Cluster Container Container Container Knative Serving
- 18. CloudEvents Interoperability and standardization Metadata Data Id Source Type Payload JSON AMQP Kafka MQTT @salaboy @vitalethomas
- 19. Knative Eventing Event routing and triggers Developer-friendly abstractions Event-driven architectures Event routing Polyglot support with CloudEvents Pluggable @salaboy @vitalethomas Cloud agnostic
- 20. Platform 3 - Knative Eventing Event-driven and reactive functions @salaboy @vitalethomas URL func create + trigger Image func deploy Kubernetes Cluster Container Container Knative Serving & Eventing Knative Broker Knative Event Sources Trigger A Trigger B
- 21. Game - Architecture @salaboy @vitalethomas
- 22. Kubernetes Cluster Game - Functions Synchronous functions with Knative <Client Side> React Application <Orchestrator> Game FrontEnd <Function> Start Game <Function> Level X … <Function> Get LeaderB Redis (State) HTTP SYNC <Function> Level 1 …
- 23. Game - Eventing Knative Eventing, CloudEvents & RSocket Kubernetes Cluster <Client Side> React Application <Orchestrator> Game FrontEnd <Function> Level X … Redis HTTP SYNC Broker Trigger Score CloudEvent RSocket GameScore CloudEvent Trigger Another Function
- 24. Discount codes Manning • 35% discount code, valid for all products in all format • ctwkucoeu22 • manning.com
- 25. Resources Source code • Learn more about the game: • https://github.com/salaboy/from-monolith-to-k8s/tree/main/game • Deploy the game on Kubernetes: • https://github.com/ThomasVitale/eventing-game • Knative: https://knative.dev • Knative Functions: https://github.com/knative-sandbox/kn-plugin-func
- 26. Mauricio Salatino & Thomas Vitale KubeCon + CloudNativeCon Europe May 18th, 2022 A Polyglot Developer Experience on Kubernetes Docker-less and YAML-less @salaboy @vitalethomas