Facing the Challenges of Microservice Development in the Cloud

Transcript

1. 1 Facing the Challenges of Microservice Development in the Cloud Sebastian Daschner Lead Java Developer Advocate
2. 2 Sebastian Daschner • Lead Java Developer Advocate @ IBM • Consultant, trainer, book author • JCP Expert Group member & Jakarta EE Committer • Java Champion • Oracle Developer Champion (Alumni) • JavaOne Rockstar speaker
3. 3 3 Cloud-native microservices Why should we care?
4. 4 Java Enterprise today • Still widely used in enterprises • Known APIs & great developer experience • Missing parts in a cloud-native, microservice world
5. 5 Java Enterprise: What’s missing • Resiliency • Monitoring • Distributed tracing • Injectable configuration
6. 6 6 MicroProfile An alternative?
7. 7 MicroProfile: An alternative? • Java Enterprise developer experience • Addresses missing parts • Enough for more complex applications?
8. 8 MicroProfile: What’s missing • Persistence, JPA, JTA • Concurrency Utils • EJB (Timers, Asynchronous)
9. 9 Java Enterprise: Options • Java EE 8 / Jakarta EE only • MicroProfile 2.0 only • Java EE plus MicroProfile additions
10. 10 Java EE plus MicroProfile • Proven technology, known APIs • MicroProfile projects fills the gaps • E.g. Java EE plus MP Config, Fault Tolerance, Metrics, OpenTracing
11. 11 11 Example: Enterprise coffee
12. 12 What else is missing? • Observability (technical, infrastructure) • Service discovery • Traffic routing
13. 13 13 Kubernetes & Istio Let’s go cloud native
14. 14 Customizing the runtime • Only including the required standards & runtime features • Required? • Trade-off between time & material spent on either development or runtime • Optimize the moving parts (deployment artifacts) first
15. 15 Servers supporting MicroProfile • Open Liberty 18.0.0.3 • Payara 5.184 • Tom EE 8.0 • Wildfly 14.0.1.Final
16. 16 Key takeaways • Use known APIs • Think of MicroProfile as extensions for Java EE • Development model that fits your need on application side • Optimize deployment artifacts before runtime
17. 17 Future: MicroProfile as Incubator? • Crafting vendor-independent soon-to-be standards • Providing what's missing from future Jakarta EE • Sharing design principles with Jakarta EE • Defining a reasonable process
18. 18 18 Cloud native Java What about startup times & resource consumption?
19. 19 19 Eclipse OpenJ9 An alternative runtime?
20. 20 OpenJ9 • OSS under Eclipse Foundation • Performance optimizations (Start-up time, ramp-up, footprint) • Free usage & security updates • Commercial support (optional)
21. 21 Thank You For Your Attention! • sebastian-daschner.com • @DaschnerS • Book: Architecting Modern Java EE Applications • https://github.com/sdaschner/coffee/tree/microservice-cloud- webinar