AWS LAMBDAAnd The Serverless Cloud

Muhammet ArslanSoftware Developer @Sony

This document prepared for BBS on 14th May, 2016 Sony

WHAT İS LAMBDA ? WriteYour Code

And That’s All!Never think about;

ServersOr

OsOr

ScalabilityOr

Durability

HOW LAMBDA WORKS ?

Write / Upload your code to AWS Lambda

Trigger the AWS from other AWS

services like S3, Api

Gateway, Dynamodb…

Lambda only runs your code

when triggering and

uses only compute resources needed

Pay for the compute time

you use1

A CLEAR EXAMPLE ?

Photo is uploaded to S3 by web server

Lambda automaticaly triggered by AWS S3 service

Deployed «Lambda» code runs and resizes the photo

BENEFITS OF AWS LAMBDA

Serverless Secure

Auto-ScaledPay only running

(sec)

LAMBDA EXECUTION ENVIROMENT• Linux kernel version : 4.1.19-24.31.amzn1.x86_64

Supporting Languages and RUNTIME Versions

• Node.js: v0.10.36, v4.3.2 (recommended)• Java: Java 8• Python: Python 2.7

Already-Installed Libraries• Node.js: Imagick, Aws SDK • Java: NOTHING!• Python: AWS SDK (boto3)

AWS SERVİCES AS EVENT SOURCES

S3DynamoDB

Kinesis

SNS

SES

COGNITO

CloudWatch

CloudFormation

Config

HOW A LAMBDA FUNCTION IS INVOKED

The Push Event Model• Publish events to AWS Lambda and Directly invoke

S3

CognitoSNS

ECHO

Custom App

HOW A LAMBDA FUNCTION IS INVOKED

The Pull Event ModelAWS Lambda polls an event source and invokes your Lambda function when the service detects new events

DynamoDBKinesis

LIM

ITAT

ION

S O

F AW

S LA

MBD

AEphmeral Disk Capacity512 MBNumber of processes and threads1024Maximum execution duration per request

300 Sec

Invoke request body payload size (RequestResponse)6 MBInvoke request body payload size (Event)128 KInvoke response body payload size (RequestResponse)6 MB

AWS LAMBDA AND NETFLIXDelivered 7 million hours of video to 50 million customers in 60 countries per quarter

Studios pushes videos

to Netflix frequently

Before Lambda!

Over the Santa systems’ Netflix process file (5

minutes chunks for paralel processing)

and repackage

And deploy to watched by

users!

After Lambda!

Studios pushes videos

to S3, via Aspera

S3 Trigger lambda to start the

process ( process the file,

repackage and deploy)

REAL LIFE EXAMPLE

The developed code, on the Sony Bbs Meeting, uploaded to,http://github.com/geass/sony-bbs-lambda

• User uploads an image from administration area (was developed with PHP)• Administration system uploads image to AWS S3 BUCKET• S3 Invokes the lambda to fetch & resize Images• Lambda fetch & resize & upload images to same bucket• And Show the resized versions on Web Site

HOW AWS COSTS YOUR LAMBDA EXECUTES?

Request Duration• First 1 million

requests per month are free

• $0.20 per 1 million requests thereafter

Duration is calculated from the time your code begins executing until it returns or otherwise terminates, rounded up to the nearest 100ms.

«The price depends on the amount of memory you allocate to your function. »

HO

W A

WS CO

STS

YOU

R LA

MBD

A D

URA

TIO

NS?

Memory (MB) Free tier seconds per month Price per 100ms ($)

128 3,200,000 0.000000208192 2,133,333 0.000000313256 1,600,000 0.000000417320 1,280,000 0.000000521384 1,066,667 0.000000625448 914,286 0.000000729512 800,000 0.000000834576 711,111 0.000000938640 640,000 0.000001042704 581,818 0.000001146768 533,333 0.000001250832 492,308 0.000001354896 457,143 0.000001459960 426,667 0.0000015631024 400,000 0.0000016671088 376,471 0.0000017711152 355,556 0.0000018751216 336,842 0.0000019801280 320,000 0.000002084

1344 304,762 0.0000021881408 290,909 0.0000022921472 278,261 0.0000023961536 266,667 0.000002501

EXAM

PLE

COST

ING

OF

AWS

LAM

BDA

If you allocated 512MB of memory to your function, executed it 3 million times in one month, and it ran for 1 second each time, your charges would be calculated as follows:

Monthly compute chargesThe monthly compute price: $0.00001667 per GB-s The free tier : 400,000 GB-s.

Total compute (seconds) = 3M * (1s) = 3,000,000 seconds512MB/1024 = 1,500,000 GB-s1,500,000 GB-s – 400,000 free tier GB-s = 1,100,000 GB-s

Monthly compute charges:1,100,000 * $0.00001667 = $18.34

Monthly request charges

The monthly request price is $0.20 per 1 million requests and the free tier provides 1M requests per month.

3M requests – 1M free tier requests = 2M Monthly billable requests

Monthly request charges:2M * $0.2/M = $0.40

TotalTotal charges = Compute charges + Request charges:

$18.34 + $0.40 = $18.74 per month

http://github.com/geass/sony-bbs-lambda

Muhammet ArslanSoftware Developer @Sony

Thank You!