Choose Your Own Adventure with JHipster & Kubernetes - Utah JUG 2020
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Ray Tsang and Matt Raible presented on 'Choose Your Own Adventure with JHipster & Kubernetes,' highlighting JHipster's flexibility in building applications with various tech stacks and architectures. They discussed the pros and cons of monoliths versus microservices, authentication types, and deployment strategies using Kubernetes. Additionally, they emphasized the ease of generating configuration files and managing services with Istio within a Kubernetes environment.
Choose Your Own Adventure with JHipster & Kubernetes - Utah JUG 2020
- 1. Ray Tsang and Matt Raible Choose Your Own Adventure with JHipster & K8s @saturnism | @mraible
- 2. Hello, JHipster! https://jhipster.tech Application Generator Development Platform Popular Open Source Project Monoliths, Microservices, and Gateways
- 3. Who is Ray Tsang? Developer Advocate at Google Cloud Kubernetes Enthusiast JHipster Committer Backpacker, snowboarder, photographer @saturnism on Twitter
- 4. Who is Matt Raible? Developer Advocate at Okta Web Framework Enthusiast JHipster Committer Skier, rafter, classic VW fan @mraible on Twitter
- 5. Choose Your Own Adventure
- 6. JHipster Gives You Lots of Options Spring Boot Spring Security SQL or NoSQL Maven or Gradle Bootstrap Angular, React, or Vue End-to-End Tests Performance Tests 26,000+ options https://arxiv.org/abs/1710.07980
- 7. Spring Boot
- 8. Google Trends for Spring Boot
- 9. The Rest of the Java Pack
- 10. Monolith vs. Microservice Architecture Monolith Microservices Pro Single app to manage Single CI/CD pipeline Low latency between calls Low coupling Faster build / deploy cycle per service Easier to scale out individual services Con Slow build / deploy cycle High coupling Harder to scale out Multiple apps to manage Multiple CI/CD pipeline Multiple EVERYTHING! High latency and issues between calls Proper service boundary
- 11. Monolith Legacy forever! At least only one pile of...
- 12. Microservices So you like the difficult stuff?
- 13. Unpopular Opinion "Monoliths are the future because the problem people are trying to solve with microservices doesn’t really line up with reality." https://changelog.com/posts/monoliths-are-the-future
- 14. Maven or Gradle?
- 15. Java, Kotlin, .NET, or Node? jhipster/jhipster-kotlin jhipster/jhipster-dotnetcore jhipster/generator-jhipster-nodejs
- 16. The End
- 17. FYI... Micronaut & Quarkus Support is in development https://github.com/jhipster/generator-jhipster-micronaut npm install -g generator-jhipster-micronaut mhipster https://github.com/jhipster/jhipster-quarkus npm install -g generator-jhipster-quarkus jhipster -d --blueprint quarkus
- 19. Authentication: Session, JWT, or OAuth 2.0? Because friends don't let friends write authentication!
- 20. MySQL, PostgreSQL, or MongoDB?
- 21. Spring MVC or Spring WebFlux?
- 23. Angular, React, or Vue.js?
- 24. Comparing Angular, React, and Vue.js
- 25. Google Trends for Angular, React, and Vue.js
- 26. PWA or Mobile?
- 27. The End
- 28. Yes to PWA! <script> if ('serviceWorker' in navigator) { window.addEventListener('load', function() { navigator.serviceWorker.register('/service-worker.js') .then(function () { console.log('Service Worker Registered'); }); }); } </script> src/main/webapp/index.html
- 29. PWA Requires HTTPS @EnableWebSecurity public class SecurityConfiguration extends WebSecurityConfigurerAdapter { @Override protected void configure(HttpSecurity http) throws Exception { http.requiresChannel() .requestMatchers(r -> r.getHeader("X-Forwarded-Proto") != null) .requiresSecure(); } } SecurityConfiguration.java https://developer.okta.com/blog/2018/07/30/10-ways-to-secure-spring-boot
- 30. Want Ionic? Use Ionic4J!
- 31. Want React Native? Use Ignite JHipster!
- 32. What do you want to build? Monoliths 21 Points Health Blog Bug Tracker Microservices Online Store Blog + Store https://github.com/jhipster/jdl-samples
- 34. High Code Quality and Performance by Default https://github.com/mraible/healthy-hipster
- 35. Where to deploy to?
- 36. Kubernetes Created by Google in 2014 Based on learnings from Google's internal orchestration tool Manages deployment of containers across a cluster of machines Currently managed by Cloud Native Foundation Single deployment target, multiple cloud/on-prem environments
- 37. Kubernetes You've chosen the path to become a YAML developer... Everything will be YAML from here on! Don't fear. JHipster will generate all the YAMLs for you!
- 38. With Istio or Without? • Kubernetes manages deployment of applications • Istio manages the services to service communication • Retries • Traces • Monitoring • L7 Routing • L7 Load Balancing (internal and external) • mTLS • Out of the box Observability with Jaeger, Kiali, Prometheus, Grafana
- 39. Kubernetes to the Cloud! Run Kubernetes sub-generator Deploy to GKE on GCP Have a look 👀 at K9s Who let the pods out?!? https://github.com/derailed/k9s
- 40. Additional Configuration for OAuth 2.0 JHipster uses Keycloak by default Configuration is not auto-generated for Kubernetes Remember to configure Issuer, Client ID, and Client Secret
- 41. Load Balancer, NodePort, or Ingress... JHipster Gateway has 2 functionalities • The frontend code • Routing ("/service/blog/api" → Blog Service) • Has Retries • But 1 extra hop Kubernetes has built-in URL mapping via Ingress • No retries
- 42. The End You survived today's encounter with YAML, and the paradox of choice. Take the JHipster adventure, and good luck! Congratulations!
- 43. Coming Soon: JHipster 7! 🚀 https://github.com/jhipster/generator-jhipster/issues/10958
- 44. Questions? 49 Keep in Touch! @mraible / matt.raible@okta.com @saturnism / rayt@google.com Presentation speakerdeck.com/mraible Code github.com/mraible skiday.dev