Microservices with Spring Cloud and Cloud Foundry

In this talk I will introduce you to Spring Cloud, a set of tools for building cloud-native JVM applications. We will take a look at some of the common patterns for microservice architectures and how to use Cloud Foundry to deploy multiple microservices to the cloud.

We will also dive into a microservices example project of a cloud-native application built using Spring Boot and Spring Cloud. Using this example project, I'll show you how to use Cloud Foundry to spin up a microservice cluster. We will then explore what a cloud-native application looks like when using self-describing REST APIs that link multiple microservices together.

Transcript

1. © 2014 Pivotal Software, Inc. All rights reserved. 1
2. © 2014 Pivotal Software, Inc. All rights reserved. Microservices with Spring Cloud and Cloud Foundry Kenny Bastani Spring Developer Advocate 2
3. © 2014 Pivotal Software, Inc. All rights reserved. Speaker Intro 3
4. © 2014 Pivotal Software, Inc. All rights reserved. Kenny Bastani 4 @kennybastani Spring Developer Advocate
5. © 2014 Pivotal Software, Inc. All rights reserved. Agenda 5 1 Agenda 2 Microservices 3 Spring Boot 4 Spring Cloud 5 Cloud Foundry 6 HATEOAS - Self-describing APIs 7 Live code
6. © 2014 Pivotal Software, Inc. All rights reserved. Microservices “Kind of like a head ache, but more of them.” 6
7. Source: Adrian Cockcroft 
 http://www.slideshare.net/adrianco water-scrum-fall increases clock time, waste
8. Source: Adrian Cockcroft 
 http://www.slideshare.net/adrianco microservices enable feature teams
9. © 2014 Pivotal Software, Inc. All rights reserved. Twelve Factor Applications - http://12factor.net/ • Use declarative formats for setup automation, to minimize time and cost for new developers joining the project; • Have a clean contract with the underlying operating system, offering maximum portability between execution environments; • Are suitable for deployment on modern cloud platforms, obviating the need for servers and systems administration; • Minimize divergence between development and production, enabling continuous deployment for maximum agility; • And can scale up without significant changes to tooling, architecture, or development practices. 9
10. © 2014 Pivotal Software, Inc. All rights reserved. 10
11. © 2014 Pivotal Software, Inc. All rights reserved. 11
12. © 2014 Pivotal Software, Inc. All rights reserved. What is Cloud Native? 12 • Cloud native is a mindset for continuously building and shipping your apps into production
13. © 2014 Pivotal Software, Inc. All rights reserved. Microservices - Polyglot Persistence • Each team gets one database and one service • Shared caches are platform provided services that are shared for consistency 13
14. © 2014 Pivotal Software, Inc. All rights reserved. Cloud-native Deployments • Each microservice can be containerized with their application dependencies • Containers get scheduled on virtual machines with an allotted resource policy 14
15. © 2014 Pivotal Software, Inc. All rights reserved. Auto-scaling • An elastic runtime handles auto-scaling of VMs with cloud providers • Microservices should be load balanced vertically and not horizontally 15
16. © 2014 Pivotal Software, Inc. All rights reserved. Composition & Orchestration • Each microservice needs to communicate outside containers • Service discovery provides an automatic method for finding other service dependencies 16
17. © 2014 Pivotal Software, Inc. All rights reserved. Spring Boot A JVM micro-framework for building microservices 17
18. spring boot it’s going to take an API.. lots of them! supports rapid development of production-ready applications and services
19. © 2014 Pivotal Software, Inc. All rights reserved. What is Spring Boot? 19
20. © 2014 Pivotal Software, Inc. All rights reserved. Spring Boot Roles 20
21. © 2014 Pivotal Software, Inc. All rights reserved. Automatic Configuration • An application class is annotated with @SpringBootApplication • Additional annotations are added to indicate the role of the Spring Boot application 21
22. © 2014 Pivotal Software, Inc. All rights reserved. Spring Boot for Microservices 22
23. © 2014 Pivotal Software, Inc. All rights reserved. Spring Cloud A toolset designed for building distributed systems 23
24. spring cloud Apache Zookeeper these logos are all trademark/copyright their respective owners (T-B, L-R): 
 
 Netflix, amazon.com, Apache Software Foundation, Cloud Foundry, Hashicorp they are ALL great organizations and we love their open-source and their APIs!! *
25. © 2014 Pivotal Software, Inc. All rights reserved. What is Spring Cloud? • Spring Cloud provides a way to turn Spring Boot microservices into distributed applications 25
26. © 2014 Pivotal Software, Inc. All rights reserved. What is Spring Cloud? 26 ✴ Service Discovery ✴ API Gateway ✴ Circuit Breakers ✴ Distributed Tracing
27. © 2014 Pivotal Software, Inc. All rights reserved. Service Discovery & Intelligent Routing 27
28. © 2014 Pivotal Software, Inc. All rights reserved. 28 Client-side load balancing
29. © 2014 Pivotal Software, Inc. All rights reserved. Configuration Service 29
30. © 2014 Pivotal Software, Inc. All rights reserved. API Gateway 30
31. © 2014 Pivotal Software, Inc. All rights reserved. Cloud Foundry “To always be shipping, you need a shipyard.” 31
32. © 2014 Pivotal Software, Inc. All rights reserved. Cloud Foundry is an opinionated platform for organizations that build and operate software as a core part of their business Opinionated Platforms 32 “I am good at selling many treehouses!” Opinionated “I once built a treehouse for my kids!” Unopinionated
33. © 2014 Pivotal Software, Inc. All rights reserved. HATEOAS Hypermedia as the Engine of Application State (REST APIs that self-describe) 33
34. © 2014 Pivotal Software, Inc. All rights reserved. It’s pronounced hawt-ee-oh-as 34
35. © 2014 Pivotal Software, Inc. All rights reserved. Richardson Maturity Model 35 Photo credit: Packt Publishing
36. © 2014 Pivotal Software, Inc. All rights reserved. Browsing REST APIs 36
37. © 2014 Pivotal Software, Inc. All rights reserved. ©2015 Apigee. All Rights Reserved. Each API call provides links 37
38. © 2014 Pivotal Software, Inc. All rights reserved. Thanks :)
 kbastani@pivotal.io
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