Aws Lambda and Serverless Cloud
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How to use lambda ? How lambda costs our functions ? How to write a lambda function in Node.js ? Sample lambda function in Node.js. My name is Muhammet Arslan, and software engineer at Sony. Every wednesday we are meeting up a subject in Sony to tech our teams about anything from It to Kung-Fu, and more . This weekend, me, explained a lot of thing about Aws Lambda. More : http://muhammetarslan.com.tr
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Aws Lambda and Serverless Cloud
- 1. AWS LAMBDA And The Serverless Cloud Muhammet Arslan Software Developer @Sony This document prepared for BBS on 14th May, 2016 Sony
- 2. Write Your Code And That’s All! Never think about; Servers Or Os Or Scalability Or Durability
- 3. LAMBDA 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
- 4. CLEAR Photo is uploaded to S3 by web server Lambda automaticaly triggered by AWS S3 service Deployed «Lambda» code runs and resizes the photo
- 5. BENEFITS
- 6. EXECUTION • 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)
- 8. FUNCTION The Push Event Model • Publish events to AWS Lambda and Directly invoke S3 Cognito SNS ECHO Custom App
- 9. FUNCTION The Pull Event Model AWS Lambda polls an event source and invokes your Lambda function when the service detects new events DynamoDB Kinesis
- 10. LIMITATIONS Ephmeral Disk Capacity512 MB Number of processes and threads 1024 Maximum execution duration per request 300 Sec Invoke request body payload size (RequestResponse) 6 MB Invoke request body payload size (Event) 128 K Invoke response body payload size (RequestResponse) 6 MB
- 11. NETFLIX Delivered 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)
- 12. LIFE 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
- 13. COSTS Request Duration • First 1 million requests per month are free • $0.20 per 1 million requests thereafter Duration is calculated from the time your code begins executing until it returns or otherwise terminates, rounded up to the nearest 100ms. «The price depends on the amount of memory you allocate to your function. »
- 14. COSTS Memory (MB) Free tier seconds per month Price per 100ms ($) 128 3,200,000 0.000000208 192 2,133,333 0.000000313 256 1,600,000 0.000000417 320 1,280,000 0.000000521 384 1,066,667 0.000000625 448 914,286 0.000000729 512 800,000 0.000000834 576 711,111 0.000000938 640 640,000 0.000001042 704 581,818 0.000001146 768 533,333 0.000001250 832 492,308 0.000001354 896 457,143 0.000001459 960 426,667 0.000001563 1024 400,000 0.000001667 1088 376,471 0.000001771 1152 355,556 0.000001875 1216 336,842 0.000001980 1280 320,000 0.000002084 1344 304,762 0.000002188 1408 290,909 0.000002292 1472 278,261 0.000002396 1536 266,667 0.000002501
- 15. EXAMPLE 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 charges The monthly compute price: $0.00001667 per GB-s The free tier : 400,000 GB-s. Total compute (seconds) = 3M * (1s) = 3,000,000 seconds 512MB/1024 = 1,500,000 GB-s 1,500,000 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 Total Total charges = Compute charges + Request charges: $18.34 + $0.40 = $18.74 per month