Cloud-native Patterns (July 4th, 2019)
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How do you apply modern Cloud-native patterns to your apps? In this talk, you'll find how to use frameworks like Spring Boot & Spring Cloud to build agile & resilient apps, leveraging Cloud platforms. Get the app source code here: https://github.com/alexandreroman/yatc.
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Cloud-native Patterns (July 4th, 2019)
- 1. © Copyright 2019 Pivotal Software, Inc. All rights Reserved. Cloud-native Patterns Didier Burkhalter Alexandre Roman Platform Architect Platform Architect @didierDIB @Alexandre_Roman July 4th, 2019
- 2. Welcome to this session! Didier Burkhalter Platform Architect, Pivotal @didierDIB Alexandre Roman Platform Architect, Pivotal @Alexandre_Roman
- 3. Cover w/ Image Agenda ■ Cloud-native patterns overview ■ Apply these patterns to your apps ■ Demo ■ Q+A during the lunch ;)
- 5. A map for Cloud-native patterns Stateless DDD / Bounded context / fine grain 12 factors Circuit breaker Client LB YP / Service Registry asynchronous API first API gateway event driven disposable (12X) chaos engineering CI/CD Small iterations Continuous refactoring instant scale up / scale down site reliability engineering Continuous update / patch Vault External config’s Contract Data services abstractions anti fragile / resiliency product centric observability SLO / SLI Design Security Behavior Team Distributed Architectures Value via communication
- 6. A map for Cloud-native patterns 12 factors Circuit breaker Client LB YP / Service Registry asynchronous API gateway event driven disposable (12X) chaos engineering CI/CD Small iterations Continuous refactoring instant scale up / scale down site reliability engineering Continuous update / patch Vault External config’s Contract Data services abstractions anti fragile / resiliency product centric observability SLO / SLI Design Security Behavior Team Distributed Architectures Value via communication Stateless DDD / Bounded context / fine grain
- 7. How to apply these patterns to your apps?
- 8. Demo app architecture API Gateway Spring Cloud Gateway Frontend UI Spring Boot + Vue.js Users API Spring Cloud Connections API Spring Cloud Feeds API Spring Cloud Search API Spring Cloud Posts API Spring Cloud Service Discovery Netflix Eureka httpshttps
- 9. Cloud-native patterns in action yatc.cfapps.io
- 10. API first API as a product ➔ Design fine-grained APIs ◆ Balance between chatty and coarse-grained APIs ➔ Apply domain driven design, embrace bounded context principles ➔ Distributed architecture: a way to scale out your application workloads ➔ Composability: build your app from component parts ➔ Hide your microservices implementation using Spring Cloud Gateway ◆ Keep your public API stable, handle breaking changes with care
- 11. API gateway and Service discovery in action API Gateway Spring Cloud Gateway Frontend UI Spring Boot + Vue.js Users API Spring Cloud Connections API Spring Cloud Feeds API Spring Cloud Search API Spring Cloud Posts API Spring Cloud Service Discovery Netflix Eureka httpshttps
- 12. Service discovery Know where you are ➔ Leverage Spring Cloud to locate your services ◆ Pluggable DiscoveryClient extensions: Consul, Kubernetes, Netflix Eureka ➔ Think dynamic, not static: you may scale out your app (more instances), or scale to zero ➔ Build with resilience in mind: apply circuit breaker pattern ◆ You don’t know when a service is down ➔ Spring Cloud provides a high level platform abstraction ◆ WebClient / RestTemplate nicely fit with Netflix OSS, Resilience4j, Kubernetes
- 13. Scaling out your app API Gateway Spring Cloud Gateway Frontend UI Spring Boot + Vue.js Users API Spring Cloud Connections API Spring Cloud Feeds API Spring Cloud Search API Spring Cloud Posts API Spring Cloud Service Discovery Netflix Eureka httpshttps
- 14. Me doing chaos monkey in production
- 15. Chaos engineering “Organize” the chaos, Murphy’s law is coming! Or … Failure is normal ! ➔ Disposability: get help from both your design and platform features ◆ Kill your app and wait for “scream” ◆ Let the platform recover your app and analyse what happens ◆ Scale out your app, kill a container and analyze what happens ➔ Test often, test early, break often, break early (tested last week …) ◆ Functional tests are not enough: the datacenter will burn ◆ More time to enhance your design ➔ Never trust the network ◆ “It was DNS” or the Load balancer or …
- 16. Observability & monitoring Improved measures optimize mission effectiveness: give sense, collect sense, shared sense ➔ Leverage out-of-the-box non-functional instruments ◆ Just add Spring Boot Actuator and Micrometer Prometheus Exporter ➔ Use tailored tools to scrape metrics ◆ Prometheus, Datadog, Dynatrace, Application Insights, Wavefront, etc. ➔ Create ad-hoc dashboards depending on who’s viewing it ◆ Build your own dashboard using Grafana
- 17. Exposing app metrics API gateway Spring Cloud Gateway Frontend UI Spring Boot + Vue.js httpshttps Prometheus Database Grafana Dashboard
- 18. Demo
- 19. Monitoring apps with Prometheus/Grafana
- 20. Monitoring apps with Prometheus/Grafana Monitoring gateway with Prometheus/Grafana
- 21. Spring Cloud Sleuth & .Net Core - OpenTracing combined
- 22. Cloud-native patterns seen as a “mille-feuille” Methodology Learn the necessary practices to build modern software Tools Build with products focused on developer productivity Platform Run every app, on every cloud, on a unified platform Cloud-native software Pivotal Labs and Services Pivotal Cloud Foundry Best-in-class products Your teams Pivotal Culture Continually improve and deliver customer success
- 23. Resources
- 24. Resources ➔ The 12 Factor App manifesto: 12factor.net ➔ Google Site Reliability Engineering: landing.google.com/sre/books ➔ Error budget: www.youtube.com/watch?v=lXPmh9Ap114 ➔ How Improved Measures Optimize Mission Effectiveness white-paper ➔ Get the app source code: github.com/alexandreroman/yatc ➔ Chaos Monkey for Spring Boot codecentric.github.io/chaos-monkey-spring-boot
- 25. Tirage au sort - Des Google Nest Hub Charbon à gagner Remplissez le formulaire d’évaluation avant 15h30
- 26. Transforming how the world builds software © Copyright 2019 Pivotal Software, Inc. All rights Reserved.