Building REST APIs with Spring Cloud and Spring BootKenny BastaniSpring Developer Advocate

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Speaker Intro

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©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)

©2015 Apigee. All Rights Reserved.

Agenda

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1. Agenda2. What is Cloud Native?3. Microservices4. Spring Boot5. Spring Cloud6. Lattice7. Cloud Foundry8. HATEOAS - Self-describing APIs9. Reverse Proxy Sidecar & Demo

What is Cloud Native?

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A culture of operators and developers tackling software complexity together

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

Microservices

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

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

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

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

Composition & Orchestration

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Each microservice needs to communicate outside containers

Service discovery provides an automatic method for finding other service dependencies

Spring Boot

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A JVM micro-framework for building microservices

What is Spring Boot?

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Spring Boot Roles

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Spring Boot

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Spring Cloud

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A toolset designed for building distributed systems

The cupcake metaphor

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What is Spring Cloud?

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Service Discovery

Circuit Breakers

API Gateway

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Service Discovery & Intelligent Routing

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Configuration Service

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API Gateway

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Lattice

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A cloud-native platform for deploying and scaling containers in production

Containers, containers, containersLattice helps you manage Docker container deployments on clusters of VMsChoose the cloud provider you want, deploys containers from Docker hub

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Cloud Foundry

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“To always be shipping, you need a shipyard”

Cloud Foundry

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Cloud Foundry is an opinionated platform for organizationsthat 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

HATEOAS

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Hypermedia as the Engine of Application State

(REST APIs that self-describe)

It’s pronounced hawt-ee-oh-as

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Richardson Maturity Model

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Photo credit: Packt Publishing

Browsing REST APIs

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Each API call provides links

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Demo

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We’re going to launch some Spring Boot containers on AWS using Lattice

(Wish me luck)

Thanks!

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I am on the Twitters

@kennybastani

Questions?

http://start.spring.io