Serverless Cloud Architectures

Transcript

1. ARCHITECTURES (WITH INFRASTRUCTURE) Niko Köbler So ware-Architect, Developer & Trainer | | SERVERLESS AWS niko@n-k.de www.n-k.de @dasniko
2. @dasniko
3. DISCLAIMER This is silver bullet, no standard, but opinionated! NO
4. SERVERLESS
5. SERVER ? WHAT
6. This is what actually mean... serverless
9. Serverless is about the of servers. Build and run applications servers. management without thinking about
10. OF COMPUTING Physical Servers in datacenters Virtual Machines in datacenters Virtual Machines in Cloud Containers on Virtual Machines Serverless as the unit of compute EVOLUTION
11. COMPUTE Functions are the unit of deployment and scaling. No machines, VMs, or containers visible in the programming model. Permanent storage lives elsewhere. Scales per request; Users cannot over- or under-provision capacity. Never pay for idle (no cold servers/containers or their costs). Implicitly fault-tolerant because functions can run anywhere. BYOC - Bring Your Own Code. Metrics and logging are a universal right. SERVERLESS MANIFESTO
12. Source: various AWS presentations
13. ? Unit of deployment and scale! PAAS
14. PaaS FaaS is as DevOps NoOps vs. vs.
15. AWS LAMBDA
16. AWS Event Driven JVM-based languages (Java 8), JavaScript (Node.js), Python, C#, (more to come) Versions, Encrypted Environment Variables, Step Functions Pay as you use - in 100ms blocks (e.g. 100ms w/ 128MB memory = USD 0.000000208) LAMBDA
17. AWS EXAMPLE LAMBDA NODE exports.handler = (event, context) => { console.log('Received event:', JSON.stringify(event)); }
18. AWS EXAMPLE LAMBDA JAVA public class ImageProcessor implements RequestHandler<S3Event, Void> { @Override public Void handleRequest(S3Event s3Event, Context context) { // get the S3 event data from the event request S3EventNotification.S3EventNotificationRecord record = s3Event.getRecords().get(0); // your code goes here... // return an object with specified type (see class generics) return null; } }
19. AWS EVENTS S3 Cloud Watch Config AWS IoT Cognito SES API Gateway (no complete list) LAMBDA DynamoDB Cloud Formation Kinesis Code Commit SNS Echo / Alexa Cron
20. GATEWAY API
21. GATEWAY "Reverse Proxy" hides possible multiple service calls (aka "service composition", ESB?) distributes requests to proper service instances "Mock" services Caching, Throttling, DDoS attack protection, etc. API
22. API GATEWAY NETFLIX
24. GATEWAY "Reverse Proxy" hides possible multiple service calls (aka "service composition", ESB?) distributes requests to proper service instances "Mock" services Caching, Throttling, DDoS attack protection, etc. API
25. GATEWAY AUTHENTICATION / AUTHORIZATION AWS Cognito / STS Custom Authorizer (Lambda Function, returning IAM policies) API
26. API GATEWAY AUTHORIZATION
27. GATEWAY API
29. DYNAMODB
30. DYNAMO Fully Managed NoSQL Data Store Schemaless Data Model Seamless Scalabiltiy, "no limits" Pay by Read-/Write-Capacity-Units DB
31. Example CASES USE
32. SERVERLESS ARCHITECTURE WEB
33. SERVERLESS ARCHITECTURE WEB
36. API Gateway with , Push and SNS SQS
38. SKILLS BOTS (CHAT/VOICE) ALEXA
39. TESTING
40. TESTING Functions are easy to test, stateless and little to no dependencies UNIT TESTS
41. TESTING Environment, Infrastructure max. 1024 of running processes/threads max. 100 concurrent Lambdas per Region no remote debugging INTEGRATION TESTS
42. COMPETITORS?
43. GOOGLE CLOUD FUNCTIONS JavaScript COMPETITOR
44. MICROSOFT AZURE FUNCTIONS JavaScript, C#, Python, PHP COMPETITOR
45. ON ? PREMISE
46. COMPETITOR IBM BLUEMIX Bluemix Cloud & OnPremise Open Source / Apache License v2.0 JavaScript (Node.js), Python and... Swi ! Docker Support Function-Chaining OPENWHISK
47. IBM LET'S GET STARTED OPENWHISK $ git clone https://github.com/openwhisk/openwhisk.git $ cd openwhisk/tools/vagrant $ vagrant up
48. IBM JAVASCRIPT EXAMPLE Create the action in OpenWhisk Run the action Result OPENWHISK function main(params) { return {payload: 'Hello, ' + params.name}; } $ wsk action create hello hello.js $ wsk action invoke hello --blocking --result --param name Niko { "payload": "Hello, Niko" }
50. Overview: Documentation, Logging & Monitoring, Metrics ! (typical things for distributed environments) Cloud Provider Binding / Dependency: APIs, Portability, Costs, SLAs DRAWBACKS
51. ? WANT TO START? Give a try! Manages all the Cloud-Resources and Deployment. CURIOUS serverless.com
52. SERVERLESS.COM # Install serverless globally $ npm install serverless -g # Create an AWS Lamdba function in Node.js $ serverless create --template aws-nodejs # Deploy to live AWS account $ serverless deploy # Function deployed! $ http://api.amazon.com/users/update
53. BUT POWERFUL 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" SERVERLESS
54. THANK ! ANY ? Slides: Niko Köbler So ware-Architect, Developer & Trainer | | YOU QUESTIONS http://bit.ly/serverless-slides niko@n-k.de www.n-k.de @dasniko
55. LINKS AWS Lambda: Amazon API Gateway: Google Cloud Functions: Microso Azure Functions: IBM OpenWhisk: IBM OpenWhisk SourceCode: Serverless Framework: https://aws.amazon.com/lambda https://aws.amazon.com/api- gateway https://cloud.google.com/functions https://azure.microso .com/services/functions https://developer.ibm.com/openwhisk https://github.com/openwhisk/openwhisk http://serverless.com