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Going Serverless: Event-Driven Architecture Wit...

Going Serverless: Event-Driven Architecture Without The Infrastructure

Greg Shackles

October 08, 2016
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  1. EVOLUTION OF ENVIRONMENT ABSTRACTIONS Virtual Machines Containers Functions INFRASTRUCTURE HOST

    OS HYPERVISOR GUEST OS GUEST OS GUEST OS LIBS LIBS LIBS APP 1 APP 2 APP 3 INFRASTRUCTURE OS CONTAINER ENGINE LIBS LIBS LIBS APP 1 APP 2 APP 3
  2. FUNCTIONS WHAT ARE THEY? ▸ Stateless, event-driven operations ▸ No

    infrastructure to manage ▸ Scales on its own ▸ Only pay for time spent running
  3. IT IS SERVERLESS THE SAME WAY WIFI IS WIRELESS. Gojko

    Adzic WHAT’S IN A NAME? https://gojko.net/2016/08/27/serverless.html
  4. WHAT CAN TRIGGER A FUNCTION? EVENT SOURCES ▸ File uploaded

    ▸ Database changed ▸ Schedule ▸ Email received ▸ HTTP endpoint called ▸ Manual invocation ▸ …and so on
  5. WHAT CAN TRIGGER A FUNCTION? AWS LAMBDA ▸ S3 ▸

    DynamoDB ▸ Kinesis ▸ API Gateway ▸ Alexa ▸ SNS ▸ CloudWatch ▸ Schedule ▸ …and more
  6. WHAT CAN TRIGGER A FUNCTION? AZURE FUNCTIONS ▸ Blob Storage

    ▸ Event Hub ▸ Webhook ▸ GitHub webhook ▸ Queue ▸ ServiceBus Queue ▸ ServiceBus Topic ▸ Timer ▸ …and more
  7. FUNCTION ENVIRONMENT AWS LAMBDA ▸ Amazon Linux AMI 2015.09 ▸

    5 minute execution time limit ▸ Languages ▸ JavaScript ▸ Java ▸ Python
  8. FUNCTION ENVIRONMENT AZURE FUNCTIONS ▸ Runs on WebJobs (Windows Server

    2012) ▸ No execution time limit ▸ Languages ▸ JavaScript ▸ C# ▸ F# ▸ Python ▸ PHP ▸ Bash ▸ Batch ▸ PowerShell
  9. PRICING COMPARISON (MONTHLY) AWS LAMBDA ▸ Free ▸ 1M executions

    ▸ 400,000 GB-s ▸ Additional ▸ $0.20 / 1M executions ▸ $0.00001667 per GB-s AZURE FUNCTIONS ▸ Free ▸ 1M executions ▸ 400,000 GB-s ▸ Additional ▸ $0.20 / 1M executions ▸ $0.000008 per GB-s
  10. PRICING EXAMPLE 256MB memory, 3 million executions, 1s per execution

    3M * 1s * 256MB/1024 = 750,000 GB-s 750,000 GB-s - 400,000 free = 350,000 GB-s 350,000 * $0.00001667 = $5.83 AWS LAMBDA AZURE FUNCTIONS Compute 3M - 1M free = 2M requests 2M * $0.2 = $0.40 Request Monthly Total: $6.23 3M * 1s * 256MB/1024 = 750,000 GB-s 750,000 GB-s - 400,000 free = 350,000 GB-s 350,000 * $0.000008 = $2.80 Compute 3M - 1M free = 2M requests 2M * $0.2 = $0.40 Request Monthly Total: $3.20