1. © 2015, Amazon Web Services, Inc. or its Affiliates. All rights reserved.
Tara E. Walker
Technical Evangelist
Amazon Web Services
An Introduction to AWS Lambda
Serverless Cloud

2. AWS Compute offerings
Lambda
Serverless compute
platform for stateless
code execution in
response to Triggers
ECS
Container
management service
for running Docker on
a managed cluster of
EC2
EC2
Virtual servers
in the Cloud

3. AWS Lambda Overview
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!

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

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

6. AWS Services Integrated with AWS Lambda
Amazon
S3
Amazon
DynamoDB
Amazon
Kinesis
November 13, 2014

7. AWS Services Integrated with AWS Lambda
Amazon
S3
Amazon
DynamoDB
Amazon
Kinesis
AWS
CloudTrail
Amazon
CloudWatch
Logs
AWS
CloudFormation
Amazon
SNS
Amazon
SWF
Amazon
SES
Amazon
API Gateway
Amazon
Cognito

8. AWS Lambda – Partner Blueprints

9. Languages and Features
re:Invent 2014
Preview Launch
April 2015
GA
Summer 2015 re:Invent 2015
• Node.js
• Event handlers
• CORS
• Mobile
Backends
• Sync calls
• Resource
policies
• Java
• Amazon S3
uploads
• Blueprints
• 1.5 GB
• Tokyo region
• Alexa Skills
• …and…

10. In case you missed it…

11. Amazon Simple Email Service Inbound Rules
// Spam check
if (sesNotification.receipt.spamVerdict.status === 'FAIL‘ ||
sesNotification.receipt.virusVerdict.status === 'FAIL')
console.log('Dropping spam');

12. Amazon CloudWatch Logs Processing
Scan, audit, or index log entries in near real time
AWS LambdaAmazon CloudWatch
Logs
Amazon
DynamoDB
Amazon S3
Amazon
Redshift

13. Lambda update: 5 new features announced
earlier this month at re:Invent 2015
1. Python functions
2. Increased function duration
3. Function versioning & aliasing
4. Scheduled functions (Cron)
5. Accessing Resources in a VPC From a Lambda Function
[coming soon]
Details at: https://aws.amazon.com/blogs/aws/aws-lambda-update-
python-vpc-increased-function-duration-scheduling-and-more/

14. New Feature: Python 2.7

15. Demo:
Python 2.7 - Hello World

16. Python 2.7 Support in AWS Lambda
• Available today in
• All SDKs (including mobile SDKs)
• AWS CLI
• Lambda console (including interactive editing)
• Includes
• Version 1.1.3 of boto3 (AWS Python SDK)
• Documentation and walkthroughs
• Console blueprints

17. New Feature: Longer-running Functions

18. Longer-running AWS Lambda Functions
• Run functions for up to 5 minutes
• Available today in the following SDKs
• Python (boto3)
• Java
• Node.js
• PHP
• AWS Mobile SDK for Android
• AWS Mobile SDK for iOS

19. 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
• Free Tier: 1M free requests and 400,000 GB-s / month

20. New Feature: Scheduled Functions

21. Demo:
Scheduled Function - Canary

22. 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!
• Coming later in 2015: CLI, SDK support

23. New Feature: Versioning

24. 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”);}

25. 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

26. 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

27. 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

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

29. New Feature: IoT Backends

30. AWS IoT + AWS Lambda

31. Sneak Peek: VPC Access

32. Sneak Peek: Accessing Resources in a VPC
From a Lambda Function [Coming soon]
Description: Access resources behind a VPC from inside
Lambda functions
Benefit: You will soon be able to access resources in a
private IP range in your VPC, including EC2, ELB, RDS,
ElastiCache and Redshift
How it works: When creating Lambda functions, you will be
able to select the VPC subnets and security groups, and the
Lambda function executions can then access private
endpoints in that VPC IP range

33. 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
• Launching later this year in all AWS Lambda regions

35. We’ve been busy.
Now it’s your turn.

36. Go to the AWS Lambda console,
create a function, and run it.
(The first million invokes are on us!)

37. Congrats, you’re a Lambda
function expert! Add an event
source or an HTTP endpoint.

38. Build a mobile, voice, or IoT
backend with a few lines of
code.

39. Thank you!
Follow me on Twitter @taraw
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