Small is beautiful - Microservices mit Spring Cloud & Netflix OSS

dm Special Developer Day 2015

Transcript

1. SMALL IS BEAUTIFUL MICROSERVICES MIT SPRING CLOUD & NETFLIX OSS Nicolas Byl  nicolas.byl@netpioneer.de  +NicolasByl
2. THE CLOUD IS COMING...
3. MICROSERVICES
4. DEFINITION
5. MICROSERVICES
6. SPRING CLOUD http://cloud.spring.io
7. NETFLIX OSS http://netflix.github.io
9. SLAAS
10. SHOPPING LISTS AS A SERVICE
11. SHOPPY http://github.com/nbyl/shoppy
14. ARCHITEKTUR
15. EUREKA SERVICE DISCOVERY
16. FEATURES Registry Heartbeat Client-Side Load Balancing Zones
17. ARCHITEKTUR
18. AKTIVIERUNG (SERVER) @ComponentScan @EnableAutoConfiguration @EnableEurekaServer public class Application { public static void main(String[] args) { new SpringApplication(Application.class).run(args); } }
19. AKTIVIERUNG (CLIENT) @ComponentScan @EnableAutoConfiguration @EnableEurekaClient public class Application { public static void main(String[] args) { new SpringApplication(Application.class).run(args); } }
20. SPRING CLOUD CONFIG
21. SPRING CLOUD CONFIG Zentrales Konfigurationsrepository REST API lokale Dateien oder git-Repository Encryption
22. AKTIVIERUNG (SERVER) @ComponentScan @EnableAutoConfiguration @EnableConfigServer public class Application { public static void main(String[] args) { new SpringApplication(Application.class).run(args); } }
23. APPLICATION BOOTSTRAPPING 
24. SPRING CONTEXT INHERITANCE
25. BOOTSTRAP VIA CONFIG SERVER Bootstrap Konfiguration des Config Server Abfrage der weiteren Konfiguration Anmeldung am Eureka Server
26. BOOTSTRAP VIA EUREKA Bootstrap Konfiguration des Eureka Server Lookup des Config Server Abfrage der weiteren Konfiguration
27. ZUUL ROUTING, FILTERING & PROXY
28. ZUUL Edge Service Routing anhand von Eureka Services, HTTP Pattern, Groovy Scripts
29. AKTIVIERUNG (SERVER) @ComponentScan @EnableAutoConfiguration @EnableZuulProxy public class Application { public static void main(String[] args) { new SpringApplication(Application.class).run(args); } }
30. AUTO-MOUNTING Eureka Services shoppinglists  /shoppinglists/*
31. KONFIGURATION zuul.ignoredServices: * zuul.routes.frontend: /app/** zuul.routes.shoppinglist: /api/**
32. RIBBON & FEIGN CLIENT SIDE LOAD BALANCER & REST CLIENT
33. RIBBON - IPC LIBRARY Load Balancing Fault Tolerance Multi-Protocol
34. FEIGN - REST CLIENT @FeignClient("email") public interface EmailServiceClient { @RequestMapping(value="/shoppinglist", method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE) void sendShoppingListEmail(ShoppingListMail mail); }
36. HYSTRIX & TURBINE CIRCUIT BREAKER & DASHBOARDS
37. HYSTRIX Circuit Breaker Pattern Event Stream Dashboards
38. AKTIVIERUNG @ComponentScan @EnableAutoConfiguration @EnableHystrix @EnableHystrixDashboard public class Application { public static void main(String[] args) { new SpringApplication(Application.class).run(args); } }
39. public class CommandHelloWorld extends HystrixCommand<string> { private final String name; public CommandHelloWorld(String name) { super(HystrixCommandGroupKey.Factory.asKey("ExampleGroup")); this.name = name; } @Override protected String run() { // a real example would do work like a network call here return "Hello " + name + "!"; } } </string>
40. public class CommandHelloWorld extends HystrixCommand<string> { @Override protected String getFallback() { return "Hello Failure " + name + "!"; } } </string>
41. public class UserService { @HystrixCommand(fallbackMethod = "defaultUser") public User getUserById(String id) { return userResource.getUserById(id); } private User defaultUser(String id) { return new User("def", "def"); } }
42. TURBINE Event Streams Multiplexer HTTP AMQP
43. BRIDGING TO THE CLOUD...
44. DANKE FÜR DIE AUFMERKSAMKEIT Fragen? Antworten!  nicolas.byl@netpioneer.de  +NicolasByl