AWS Lambda - A quick introduction #advancedaws

AWS Lambda - A quick introduction #advancedaws

• 1.
  @crichardson AWS Lambda A quick introduction Chris Richardson Author of POJOs in Action Founder of the original CloudFoundry.com @crichardson chris@chrisrichardson.net http://plainoldobjects.com http://microservices.io
• 2.
  “The Magic Happensat the @crichardson Intersection of Functions, Events and Data”
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  @crichardson AWS Lambdais a PaaS* for event-driven microservices * in a restricted kind of way
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  NodeJS functions thatconsume events @crichardson S3 Kinesis DynamoDB console.log('Loading event'); exports.handler = function(event, context) { console.log('value1 = ' + event.key1); console.log('value2 = ' + event.key2); console.log('value3 = ' + event.key3); context.done(null, 'Hello World'); }; Events Pricing (once you have exceeded the free tier) $0.0000002 per request $0.00001667 for every GB-second Invoke API
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  IAM role forlambda @crichardson NodeJS module Specify event handler execution Resource limits
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  @crichardson
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  NodeJS-powered home security @crichardson
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  NodeJS-powered home security FTP server Upload image IpCamViewer Web App @crichardson Log file Upload dir. Upload2S3 UploadQueue Processor S3 SQS Queue DynamoDB
• 9.
  IpCamViewer Web App @crichardson NodeJS + Lambda FTP server Log file Upload dir. Upload2S3 S3 DynamoDB
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  Triggering events @crichardson S3 notifications Lambda to invoke Invoking IAM role
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  Promise-based event handling code Asynchronously process event @crichardson Invoke success/error handler when all events have been processed
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  s3ObjectProcessor.process() ultimately invokesAWS SDK @crichardson
• 13.
  @crichardson Uploading thelambda
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  @crichardson IAM rolepolicies lambda_invoke_role lambda_exec_role Permission to invoke lambda Permission to access DynamoDB tables
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  @crichardson 12 awss3 cp IMG_2824.jpg "s3://imagecamimage-std/partitions/20130217/ipcam/ipcam99/000DC5D76EFE(ipcam99)_1_20130217052637_1219.jpg" DynamoDB table lambda-imagesbyipcamandtimestamp(ipcam, timestamp) lambda-ipcambydayandtimebucket(ipcamandday)
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  @crichardson Cloud Watchlogs
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  @crichardson Final thoughts Useful for writing “simple” AWS-oriented services What would be nice: Ability to specific environment variables for externalized configuration, e.g. names of AWS resources
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  @crichardson @crichardson chris@chrisrichardson.net http://plainoldobjects.com http://microservices.io