Whats all the FaaS About

1. Tikal KnowledgeTikal Knowledge WHAT’S ALL THE FAAS ABOUT? HAGGAI PHILIP ZAGURY - DEVOPS ARCHITECT ASSAF GANNON - JAVASCRIPT ARCHITECT 1

2. FullStack Developers Israel INTRO - WHO WE ARE WHO WE ARE ? ▸ Tikal helps ISV’s in Israel & abroad in their technological challenges. ▸ Our Engineers are Fullstack Developers with expertise in Backend, DevOps, Frontend & Mobile ▸ We are passionate about technology and specialize in OpenSource technologies. ▸ Our Tech and Group leaders help establish & enhance existing software teams with innovative & creative thinking. https://www.meetup.com/full-stack-developer-il/

3. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? INTRODUCTION ▸ What all this “talking” Functions, Lambda, Serverless … ▸ Clear the ‘musk’ about Lambda ▸ What is this serverless stuff again ?! ▸ Didn’t we loose that ﬁght to Docker ? ▸ Abstract backend services … ▸ Serverless -> Who am I married too then ?! 3

4. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? WHAT ALL THIS “TALKING” FUNCTIONS, LAMBDA, SERVERLESS … 4

5. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? CLEAR THE ‘MUSK’ ABOUT LAMBDA MISCONCEPTIONS ▸ Lambda is Amazon Web Services commercial name for it’s “event-driven, serverless computing platform” another great way to sell “compute” (and calling it serverless ;) ) ▸ AWS Lambda is named after: 5

6. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? HERE COME GOOGLE 6

7. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? HERE COME MICROSOFT 7

8. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? BASICALLY, A NEW MODEL CONSUMING COMPUTE RESOURCES … WITH A BIG + Time Days Minuets Seconds Milliseconds Cost Agility Scalability https://www.slideshare.net/BryanMcAninch/the-faas-and-the-curious-86874211 8

9. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? FROM SERVERS TO SERVICES = SERVERLESS… https://www.slideshare.net/BryanMcAninch/the-faas-and-the-curious-86874211 Days Minuets Seconds Milliseconds 9

10. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? TELL ME SOMETHING I DON’T KNOW ! ▸ Time is money ▸ More for less! ▸ Pay as you go … 10

11. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? FUNCTIONS, FUNCTIONS, FUNCTIONS ▸ We’ve been doing them all along … ▸ So what’s all the (big) fuss about ? 11

12. FullStack Developers Israel EVOLUTION In one word… WHATS ALL THE FAAS ABOUT ? 12

13. Tikal Knowledge THE HOST THE APP WHATS ALL THE FAAS ABOUT ? OS -> “APP CONTAINER” -> A CONTAINER /* 13

14. Tikal Knowledge THE HOST WHATS ALL THE FAAS ABOUT ? APP SCALE … (AUTO SCALE TO LIMIT) THE HOST THE APP THE APP LOAD BALANCER 14

15. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? WHAT IF ? WE TAKE AWAY THE HOST … THE APP THE APP LOAD BALANCER 15

16. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? WHAT IF ? WE TAKE AWAY THE HOST … AND THE APP LOAD BALANCER FUNCTION FUNCTION FUNCTION FUNCTION FUNCTION FUNCTION 16

17. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? WHAT IF ? WE TAKE AWAY THE HOST … AND THE APP APPLICATION GATEWAY [ BAAS ] FUNCTION FUNCTION FUNCTION FUNCTION FUNCTION FUNCTION /{user} -> user function /{pet} -> pets function Common Backend Services such as - Authentication - Image rendering - * Messaging 17

18. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? SO, FUNCTIONS ARE JUST 1/2 OF THE STORY …. ▸ Authentication ▸ Authorization ▸ Databases ▸ Queues ▸ Messaging ▸ … 18

21. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? SO FAAS IS THE NEW MICRO-SERVICE ! THE MONOLITH > > FUNCTION FUNCTION FUNCTION 21

22. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? WAIT !, ISN’T “SERVERLESS” PAAS ? ▸ How does this differ from ▸ Heorku ▸ CloudFormation ▸ CloudFoundery … ▸ … Let’s ask someone who knows a thing or 2 … 22

23. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? SERVERLESS JUST MEANS “LESS” “SERVERS” … IaaS Paas Severless SaaS Application Application Application Application Data Data Data Data Runtime Runtime Runtime Runtime Middleware Middleware Middleware Middleware OS OS OS OS Virtualization Virtualization Virtualization Virtualization Servers Servers Servers Servers Storage Storage Storage Storage Network Network Network Network You need to manage You consume

24. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? SERVERLESS PROS ▸ Capacity Management ▸ Pay Per use / As you go ▸ Auto Recovery / Auto healing ▸ Versioning ▸ Centralised Log & Monitoring ▸ A standardised way to: ▸ enforce process isolation ▸ Unify deployment 24 ▸ Trigger more functions … ▸ Your billed by the second ▸ If one fails just spin another ▸ Functions are behind a url have /dev /prod /v1 /v2 … ▸ Process is logged / monitored by the “providers watchdog” ▸ A standardised way to: ▸ Every part of your app is isolated ▸ Even deployment either has an endpoint or not …

25. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? SERVERLESS CONS ▸ Less control on Infra ▸ Vendor lock-in ▸ Learning curve ▸ Services have no state ▸ Vendor differences ▸ Cold Start for JVM’s ▸ Security 25 ▸ That’s what you wanted ! Ins't it ?! ▸ Use Frameworks / Kubernetes / Combine … ▸ Like any new tool / framework ▸ Do not rely on API GW’s cache (more BaaS) ▸ Migration has a cost from 1 provider 2 another ▸ “Warming lambda’s” - link ▸ Use a common solution (which integrates with all)

26. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? WHAT CAN WE FUNCTIONIZE ? ▸ HINT - pretty much anything … 26

27. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? BUILD SIMPLE APPLICATIONS ▸ Create a full-stack serverless web-app with a single ﬁle https://rea.tech/create-a-full-stack-serverless-web-app-with-a-single-ﬁle/ https://github.com/Kalimaha/serverless-guestbook https://keiran.scot/2017/11/03/going-serverless-with-aws-serverless-user-authentication-part-1/

28. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? OR COMPLEX ONES … https://read.acloud.guru/serverless-event-sourcing-at-nordstrom-ea69bd8fb7cc ▸ Step by Step ▸ Monolith to Serverless architecture for “part”s of you application

29. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? MANAGING IOT WITH SERVERLESS ▸ Designed to scale ▸ Scalable by design … ▸ Pay as you go …

30. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? BUILDING CHATBOTS WITH SERVERLESS AND AWS LAMBDA https://chatbotsmagazine.com/a-serverless-event-driven-architecture-for-chatbots-3095eb40cbb7

31. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? SERVERLESS -> WHO R WE MARRIED TO ? ▸ Choose from many F**S/B**S providers ▸ Or … Use Frameworks ! 31

32. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? STDLIB

33. Tikal Knowledge https://nuclio.io/

34. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? DATA DRIVEN BASS & FAAS

35. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? STREAM ALERT https://medium.com/airbnb-engineering/streamalert-real-time-data-analysis-and-alerting-e8619e3e5043 ▸ Airbnb’s serverless framework. ▸ Scalable to TB’s/hour, infrastructure deployment is automated and it’s ▸ Secure by default.

36. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? SERVERLESS.COM || SERVERLESS JS

37. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? MANY OPTIONS https://serverless.com/framework/docs/

38. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? SERVERLESS -> WHO R WE MARRIED TO ? - YOUR CHOICES ! ▸ Choose from many F**S/B**S providers ▸ Or … Use Frameworks ! ▸ Or Build your own … ▸ [ we didn’t say Kubernetes yet ;) ] 38

39. FullStack Developers Israel WHATS ALL THE FAAS ABOUT ? CHOICES … MORE CHOICES ▸ Use the cloud all the way ▸ Use the cloud via Framework ▸ Use the cloud via cloud Native implementations ▸ Mix ’n’ Match …

40. Tikal Knowledge UNDER THE HOOD

41. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? UNDER THE HOOD Provider’s Monitor Provider’s Log Your … Provider’s Infra Provider’s Base Images 41

42. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? DESIGN YOUR OWN CLOUD NATIVE SERVERLESS IMPLEMENTATION 42

43. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? OPENFAAS || FAAS NETES ▸ Use underlaying docker orchestration engines such as Swarm or Kubernetes. ▸ Encapsulate functions into containers { just like cloud providers do } ▸ Infrastructure scaling in<->out done via IaaS auto scaling capabilities 43

44. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? OPENFAAS ARCHITECTURE

45. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? OPENFAAS ARCHITECTURE Request router Monitor / Alerts on Functions “IaaS Provider” Build & Execute

46. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? FUNCTION AS A SERVICE WITH OPENFAAS ON BANZAI CLOUD PIPELINE https://banzaicloud.com/blog/openfaas/ ▸ Use Kubernetes. ▸ Encapsulate functions into containers ▸ Infrastructure scaling in<->out done via IaaS auto scaling capabilities

47. Tikal Knowledge WHATS ALL THE FAAS ABOUT ? COMBINE :: FAAS / KUBELESS

48. Tikal Knowledge

49. FullStack Developers Israel WHATS ALL THE FAAS ABOUT ? A LITTLE DEMO TO GET US STARTED

50. FullStack Developers Israel WHATS ALL THE FAAS ABOUT ? A LITTLE DEMO TO GET US STARTED

51. FullStack Developers Israel WHATS NEXT ? MORE CLOUD NATIVE SERVERLESS SOLUTIONS

52. FullStack Developers Israel

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