Spring Cloud Star
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The document discusses service discovery and configuration systems for microservices, comparing Spring Cloud, Eureka, Consul, and Zookeeper. It provides pros and cons of each system, including Eureka being highly available but having long refresh thresholds, Consul having a HTTP API and being polyglot but still young, and Zookeeper being mature but having scale and ops issues. It also mentions Spring Cloud roadmap and using configuration servers.
Spring Cloud Star
- 1. #DevoxxFR Spring Cloud * Discovery and Configuration Systems Comparison by: Spencer Gibb https://github.com/spencergibb/spring-cloud-star http://spencer.gibb.us @spencerbgibb 1
- 2. Salt Lake City, Utah
- 3. #DevoxxFR 3
- 4. #DevoxxFR Spring Cloud Roadmap • Brixton RC2 Released: 22 April 2016 • Brixton GA Release: end of April (Maybe RC3) • ‘Camden’ will follow Spring Boot 1.4: Q3 2016 • ‘Dalston’ will follow Spring 5 & Spring Boot 2.0: Q2 2017 (Java 8) • Many Services Releases (SR) in between 4
- 5. #DevoxxFR Microservices 5 You must be this tall to ride
- 7. #DevoxxFR DiscoveryClient • @EnableDiscoveryClient • ServiceInstance si = discoveryClient.choose(“serviceId”) • RestTemplate • @FeignClient 7
- 8. #DevoxxFR Service B 12 Factor Apps http://12factor.net Distributed Configuration 8 Config Server Service A
- 10. #DevoxxFR Environment • @ConfigurationProperties • @Value • Environment 10
- 11. #DevoxxFR Spring Cloud Config Server • Greenfield • HTTP API similar to Netflix Config Server • Backed by VCS: git, SVN • Stateless • @RefreshScope • Plain text files (eg. messages_fr.properties) 11
- 12. #DevoxxFR Spring Cloud Config Server • Uses spring-boot configuration files & semantics • Auto-configured client • Refresh via bus (events) • Webhook support for github, gitlab and bitbucket • Commercial Support in Pivotal Cloud Foundry 12
- 15. #DevoxxFR Eureka pro’s • Highly-available • Mature / Proven by Netflix • Tight Ribbon Integration • Commercial Support in Pivotal Cloud Foundry 15 💚
- 16. #DevoxxFR Eureka Con’s •JVM Based •Thick Java client •Polyglot by Sidecar •Built for AWS Initially •Long thresholds for registraion and cache refresh (30s) 16 💔
- 18. #DevoxxFR Consul pro’s •Service Discovery & Configuration •Polyglot •HTTP API and DNS interface •ACL’s •Health Checks 18 💚
- 19. #DevoxxFR 💚 •Multi-Datacenter •Vault Integration (Keys and Secrets) •YAML and Properties Blobs supported •peer-to-peer gossip system •Nice UI Consul pro’s 19
- 20. #DevoxxFR Consul Con’s •Young •Agent on every host 20 💔
- 23. #DevoxxFR 💚 Zookeeper pro’s • Consistent Store • Started life as a Hadoop sub-project (2007?) • Mature, used in many companies • Useful if ZK is already part of your infrastructure • Ephemeral Nodes / Persistent Connections • Uses Apache Curator’s Service Discovery Recipe 23
- 24. #DevoxxFR 💔 Zookeeper Con’s •Scale Issues •OPS Headaches •Needs management process like Netflix Exhibitor •Persistent Connections 24
- 25. #DevoxxFR Honorable Mention • HAProxy/Nginx/Apache HTTPD • Spring Cloud CloudFoundry • Spring Cloud ETCD (Experimental) • AirbNB Smart Stack http://nerds.airbnb.com/smartstack-service-discovery-cloud/ • Uber HyperbahN https://youtu.be/N2472uS5Y6M https://github.com/uber/hyperbahn 25
- 26. #DevoxxFR Questions? 26 Josh Long: The Bootiful Microservice 13:55 Maillot https://github.com/spencergibb/spring-cloud-star http://spencer.gibb.us @spencerbgibb