AWS Lambda is a compute service that runs your code in response to events and automatically manages the compute resources for you, making it easy to build applications that respond quickly to new information. AWS Lambda starts running your code within milliseconds of an event such as an image upload, in-app activity, website click, or output from a connected device. In this Live-Demo we will show you what Lambda is and which capabilities it provides, how to actually build a Lambda function that thumbnails an image and how to build the entire backend-logic of a funny little web-based game - with Lambda only. "

1. AWS Lambda and the Serverless Cloud
Ran Tessler, AWS Solu0ons Architecture Manager

2. AWS Lambda – No Infrastructure to Manage
A compute service where you
don’t have to think about:
• Servers
• Being over/under capacity
• Deployments
• Scaling and fault tolerance
• OS or language updates
• Metrics and logging
…but where you can easily
• Bring your own code… even
native libraries
• Run code in parallel
• Create backends, event
handlers, and data
processing systems
• Never pay for idle!

3. AWS Lambda – Benefits
EVENT-DRIVEN SCALESERVERLESS SUBSECOND BILLING

4. AWS Lambda – Pricing
• Requests
• $0.20 per 1 million requests
• First 1 million requests per month are FREE
• Duration
• $0.00001667 for every GB-second used.
• Rounded up to the nearest 100ms
• 400,000 GB-seconds of compute time per month are FREE

5. AWS Lambda – How It Works
DEPLOYMENT
AUTHORING
MONITORING & LOGGING
STATELESS

6. AWS Lambda Function
• Author your code
• Node.js, Java 8, Python 2.7, native libraries
• Configure your runtime
• Handler
• Execution Role
• Resource Sizing – 128MB up to 1.5GB
• Timeout – 100ms up to 5min
• Networking – VPC / Public
• Add event sources
• Configure API endpoint

7. AWS Lambda - Resource Sizing
• AWS Lambda offers 23 “power levels”
• Higher levels offer more memory and more CPU power
• 128 MB, lowest CPU power
• 1.5 GB, highest CPU power
• Higher power levels == lower latency for CPU-bound
and bursty tasks
• Compute price scales with the power level
• Duration ranging from 100ms to 5 minutes

8. AWS Lambda – Event Sources
Amazon S3
Amazon
DynamoDB
Amazon
Kinesis
AWS CloudTrail
Amazon
CloudWatch
Logs
AWS
CloudFormation
Amazon SNS
Amazon
SWF
Amazon
SES
Amazon
API Gateway
Amazon
Cognito
November 13, 2014
Event Sources:
Integration with
AWS Services:
AWS IoT

9. AWS Lambda – Partner Blueprints

10. In case you missed it…

11. New Feature: Scheduled Functions

12. Scheduled AWS Lambda Functions
• Available today in the Lambda console
• Schedule functions at a specific time or recurring
• Accepts standard cron syntax
• 5 minute granularity
• You can get sub-second granularity using a Lambda function
• Easily poll Amazon SQS or other data sources!

13. New Feature: Versioning

14. Versioning: Development
Developing in AWS Lambda stays simple:
• Upload code
• Make changes any time
• Last update wins
exports.handler =
function(event,context)
{context.succeed(“bye”);}
exports.handler =
function(event,context)
{context.succeed(“hi”);}

15. Versioning: Publishing
Publish new versions from development at any time:
• “Copies” dev version to a numbered version
• Published versions are read-only (including configuration)
• Simple, integer counter per function
exports.handler =
function(event,context)
{context.succeed(“bye”);}
exports.handler =
function(event,context)
{context.succeed(“hi”);}
1
2
Versions

16. Versioning: Aliases
Create named aliases to any version:
• Allows function owner to map ARNs to code
• Can be updated without changing clients
exports.handler =
function(event,context)
{context.succeed(“bye”);}
exports.handler =
function(event,context)
{context.succeed(“hi”);} prod
dev
Aliases

17. Versioning: Calling Lambda Functions
Development version:
FunctionName (or)
FunctionName:$LATEST
Specific version:
FunctionName:1
FunctionName:2
Named version:
FunctionName:production
FunctionName:v1_2_3_4

18. Amazon API Gateway:
Version your APIs
/prod/my_url_endpoint à
MyFunction:prod_rel
Versioning APIs and Code
MyFunction:prod_rel à
Function:3 à
{your code}
AWS Lambda:
Version your code

19. New Feature: VPC Access

20. AWS Lambda VPC Access
• Select the functions to run in your VPC
• Select subnets and security groups to use
• Your Lambda function can access the private resources
you choose:
• Amazon Elasticache
• Amazon RDS
• Private EC2 endpoints
• Any other resources in your VPC

21. Let’s get busy!

22. So what are we going to build today?
Voting Application
• A voting application
• Fully serverless backend
• Votes stored and aggregated on
DynamoDB using Lambda
• Static website on Amazon S3
and authentication using Cognito
• Email voting using SES Inbound
Rules integration with Lambda

23. So what are we doing to build today?

24. So what are we doing to build today?

25. So what are we doing to build today?

26. So what are we doing to build today?

27. Ran Tessler
AWS Solu0ons Architecture Manager
tesslerr@amazon.com