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 Lattice to spin up a microservice cluster on AWS. We will then explore what a cloud-native application looks like when using self-describing REST APIs that link multiple microservices together.

1. Building REST APIs
with Spring Cloud and Spring Boot
Kenny Bastani
Spring Developer Advocate
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2. Speaker
Intro
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3. ©2015 Apigee. All Rights Reserved.
Speaker Intro
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I’m a developer who advocates good tools.
(I tweet about building highly scalable “Hello World” apps for a living)

4. ©2015 Apigee. All Rights Reserved.
Agenda
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1. Agenda
2. What is Cloud Native?
3. Microservices
4. Spring Boot
5. Spring Cloud
6. Lattice
7. Cloud Foundry
8. HATEOAS - Self-describing APIs
9. Reverse Proxy Sidecar & Demo

5. What is Cloud Native?
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A culture of operators and developers tackling
software complexity together

6. 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.
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7. 7
https://18f.gsa.gov/2015/10/09/cloud-gov-launch/

8. Microservices
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“Kind of like a headache, but more of them.”

9. Microservices
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Each team gets one database and one service
Shared caches (Couchbase) are platform provided services that are shared for consistency

10. Cloud-native Microservice Deployments
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Each microservice can be containerized with their application
dependencies
Containers get scheduled on VMs with an allotted resource policy

11. Auto-scaling
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An elastic runtime handles auto-scaling of VMs with cloud providers
Microservices should be load balanced vertically and not horizontally

12. Composition & Orchestration
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Each microservice needs to communicate outside containers
Service discovery provides an automatic method for finding other service dependencies

13. Spring Boot
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A JVM micro-framework for building microservices

14. What is Spring Boot?
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15. Spring Boot Roles
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16. 16

17. Spring Boot
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18. Spring Cloud
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A toolset designed for building distributed
systems

19. The cupcake metaphor
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20. What is Spring Cloud?
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Service Discovery
Circuit Breakers
API Gateway
4 Distributed Tracing

21. Service Discovery & Intelligent Routing
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22. Configuration Service
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23. API Gateway
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24. Lattice
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A cloud-native platform for deploying and scaling
containers in production

25. Containers, containers, containers
Lattice helps you manage Docker container deployments on clusters of VMs
Choose the cloud provider you want, deploys containers from Docker hub
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26. Cloud Foundry
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“To always be shipping, you need a shipyard”

27. Cloud Foundry
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Cloud Foundry is an opinionated platform for organizations
that build & operate software as a core part of their business
I once built a
treehouse for
my kids!
I am good at
selling many
treehouses!
Opinionated Unopinionated

28. HATEOAS
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Hypermedia as the Engine of Application State
(REST APIs that self-describe)

29. It’s pronounced hawt-ee-oh-as
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30. Richardson Maturity Model
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Photo credit: Packt Publishing

31. Browsing REST APIs
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32. Each API call provides links
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33. Demo
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We’re going to launch some Spring Boot
containers on AWS using Lattice
(Wish me luck)

34. Thanks!
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I am on the Twitters
@kennybastani
Questions?
http://start.spring.io