GLOBALLY DISTRIBUTED APPLICATIONS WITH SERVERLESS FRAMEWORK 

Maciej Winnicki Principal Software Engineer Serverless, Inc. 

@mthenw 

what is serverless 

(re)volution of the cloud 

focus on business logic less concerns about stack implementation https://medium.com/openwhisk/five-minute-intro-to-open-source-serverless-development-with-openwhisk-328b0ebfa160 bare metal IaaS PaaS functions hardware abstraction OS abstraction runtime abstraction 

Function-as-a-Service 

Function-as-a-Service Backend-as-a-Service + https://martinfowler.com/articles/serverless.html 

no server/container/process management http://blog.rowanudell.com/the-serverless-compute-manifesto/ costs scale with usage / never pay for idle auto-scale / auto-provision 

global availability • improved performance 
 (lower response time = more income) • increased fault tolerance • data locality 

CHALLENGES 

• How to route traffic to the closest region? • Where to store data? • How to store data in multiple regions? • How to sync data between regions? • Consistency vs. availability • What happens if one region failed? 

AWS re:Invent 2017: Building Resilient, Multi-Region Serverless Applications (SRV313) 

DEMO APPLICATION 

DISTRIBUTED KEY/VALUE STORE 

λ λ DynamoDB Global Table demo.serverlessperf.com DNS CNAME record DNS CNAME record 

• Logic - AWS Lambda • HTTP endpoint - AWS API Gateway + custom domains • Database - AWS DynamoDB + DynamoDB Global Tables • Global DNS - AWS Route53 Latency based routing 

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A CLI tool that manages the lifecycle of you serverless application. 

Features • application lifecycle management • manage code & infrastructure • scaffolding & automation • multi-provider • AWS • Google Cloud • Azure • IBM BlueMix • Kubeless • local development • extensibility • community 

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