The document is a presentation on serverless architectures given by Lê Thanh Sang, a senior developer at GO1. It begins with an introduction of the speaker and overview of GO1. The bulk of the presentation defines what serverless computing is, highlights the benefits, and provides examples of serverless products and architectures using various AWS services. It concludes with a demo of a serverless note taking application built on S3, API Gateway, Lambda, and DynamoDB and a Q&A section.

1. Lê Thanh Sang
Senior Developer at GO1
Getting Started with
Serverless Architectures
November 19, 2016

2. 1. Welcome
2. What is Serverless? Benefits of Serverless?
4. Demo: Building note application
5. Q&A
Meetup Agenda

3. Who Am I?
 A husband
 Working for GO1 from 2013 as Senior Developer
 Current leading the iTeams (Integrations &
Infrastructure)
 About GO1: “We help hundreds of organizations
provide training for over 150,000 users”
www.go1.com

4. What is Serverless?
Provisioning
and Utilization
Operations
and Management
Scaling Availability and
Fault Tolerance
Removes the need for….

5. Benefits of Serverless?
Provisioning
and Utilization
Operations
and Management
Scaling Availability and
Fault Tolerance
Which leads to….
Low Cost Simple Low Latency Scalable Reliable

6. Platform of Serverless Products
Storage DatabaseCompute
Messaging and QueuesGateways
User Management
Internet of Things
Machine LearningStreaming Analytics

7. Real-time Processing
Streams
Files

8. ETL (Extract, Transform, Load)

9. IoT Backends

10. Web Application Serverless Architecture

11. Anatomy of a Web Application

12. What makes up a web application?
• Let’s break it down…

13. Serverless Web Application

14. Where did all the servers go?

15. Static Website Hosting on S3 - refresher
 Specify an index document (i.e. index.html)
 Specify an error document
 Objects publicly readable
 Supports redirects
 All Requests
 Conditional
bucket with
objects

16. API Gateway - refresher
Create Configure Publish
Maintain Monitor Secure

17. API Gateway – Stage Variables
 Key/Value pairs used for configuration
 Used for different stages of API
 Specify a Lambda function name
 Pass to backend

18. Lambda
 Serverless, event-driven compute
 Code is: NodeJS, Python, JVM based
 Specify memory allocated
 Determine what invokes the functions
 API Gateway, S3, DynamoDB, Kinesis, SNS, SES, Cognito,
Cloudwatch Logs, Cloudwatch Events, CloudFormation,
Config, Scheduled Events

19. Lambda – Versioning and Aliases
• Versioning
 ARN for each one (immutable)
 Versions of functions for Dev, Staging, Prod
• Aliases
 Point to a version
 Have an ARN also
 Event sources point to Alias ARNs

20. Lambda – Dynamic Configuration
• One option:
 Pull Configs from DDB
 Write values to global vars
 Code uses global vars
Lambda
Function
Amazon
DynamoDB

21. DynamoDB - refresher
 NoSQL database
 Keys: Hash Key and (optional) Range Key
 Tips:
 Plan your keys
 Think about your queries

22. Demo
(https://github.com/sanglt/aws-
serverless-note-demo)

23. Demo App Architecture
AWS Lambda
Functions
web browser
Amazon S3
Dynamic Content
StaticContent
Amazon
DynamoDB
Amazon API
Gateway
1

24. Architect to be Serverless
• Fully Managed
 No provisioning
 Zero administration
 High availability
• Developer Productivity
 Focus on the code that
matters
 Innovate rapidly
 Reduce time to market
• Continuous Scaling
 Automatically
 Scale up and scale down

25. References
• http://www.slideshare.net/AmazonWebServices/
getting-started-with-serverless-architectures-
august-2016-monthly-webinar-series
• https://github.com/serverless/serverless
• http://docs.aws.amazon.com/amazondynamodb/l
atest/gettingstartedguide/GettingStarted.NodeJs.
html

26. Q&A

27. Thank You

28. Meetup: www.meetup.com/aws-vn/
FB: www.facebook.com/groups/amazonwebservicevietnam
Join Slack: https://aws-vn.herokuapp.com/