Serverless Microservices with AWS Lambda

Talk from BedCon 2016

Transcript

1. HOW SMALL CAN IT BE? MICROSERVICES WITH AWS SERVERLESS LAMBDA Niko Köbler So ware-Architect, Developer & Trainer | | niko@n-k.de www.n-k.de @dasniko
2. @dasniko
3. SERVERLESS
5. AWS LAMBDA ...yes, also Google, Azure and others provide such things...
6. AWS LAMBDA Event Driven Python, JavaScript (Node), JVM-based languages (Java 8) Versions, Aliases via ARNs calculating time based costs, 100ms blocks (e.g. 100ms w/ 128MB memory = USD 0.000000208)
7. AWS LAMBDA NODE EXAMPLE e x p o r t s . h a n d l e r = ( e v e n t , c o n t e x t ) = > { c o n s o l e . l o g ( ' R e c e i v e d e v e n t : ' , J S O N . s t r i n g i f y ( e v e n t ) ) ; }
8. AWS LAMBDA JAVA EXAMPLE p u b l i c c l a s s I m a g e P r o c e s s o r i m p l e m e n t s R e q u e s t H a n d l e r < S 3 E v e n t , V o i d > { @ O v e r r i d e p u b l i c V o i d h a n d l e R e q u e s t ( S 3 E v e n t s 3 E v e n t , C o n t e x t c o n t e x t ) { / / g e t t h e S 3 e v e n t d a t a f r o m t h e e v e n t r e q u e s t S 3 E v e n t N o t i f i c a t i o n . S 3 E v e n t N o t i f i c a t i o n R e c o r d r e c o r d = s 3 E v e n t . g e t R e c o r d s ( ) . g e t ( 0 ) ; / / y o u r c o d e g o e s h e r e . . . / / r e t u r n a n o b j e c t w i t h s p e c i f i e d t y p e ( s e e c l a s s g e n e r i c s ) r e t u r n n u l l ; } }
9. AWS EVENTS LAMBDA S3 Cloud Watch Config DynamoDB Cloud Formation Kinesis Cognito SES Cron AWS IoT SNS API Gateway (no complete list)
10. GATEWAY API
11. GATEWAY API "Reverse Proxy" hides possible multiple service calls (aka "service composition", ESB?) distributes requests to proper service instances "Mock" Authentication/Authorization via AWS Cognito / STS Key-Value-Pairs for configuring different stages
12. GATEWAY API
13. SERVERLESS ARCHITECTURE
15. PAAS? Scalability?
16. DRAWBACKS Overview => Logging / Monitoring ! Testing => Environment & Infrastructure Cloud Provider Binding / Dependency
17. BUT POWERFUL SERVERLESS No need to run/manage Application Servers Fast results, minimal effort, minimal TTM Low costs, minimal financial risk Automatic Scalabiltiy and Availability "out-of-the-box"
18. THANK ! YOU ANY ? QUESTIONS Niko Köbler So ware-Architect, Developer & Trainer | | niko@n-k.de www.n-k.de @dasniko