Serverless in the Java ecosystem

Transcription

1 Serverless in the Java ecosystem Pratik Patel

2 Pratik PateL CTO Triplingo Java Champion JavaScript Troublemaker Python Hacker Founder, PERL recovery group

3 WHAT IS SERVERLESS? ARCHITECTURE ECOSYSTEM

4 SERVERLESS

5 #1 A VERY BAD NAME

6

7 IN A NUTSHELL

8 RESPONSES WERE EVEN BETTER!

9 RESPONSES WERE EVEN BETTER!

10 NOT GEOCITIES

11 Yes, There Are Still Servers SERVERLESS

12 New way to pay for and work with servers SERVERLESS

13 Cheaper Easier WHAT S THE POINT?

14 Aliases AKA

15 Functions as a Service Cloud Functions AKA

16 definition Run code without provisioning or managing servers

17 All the DEV no DevOps

18 Scalability Availability Serverless takes care of it

19 ? But is it also a (new) architectural model? Ultra creative template 19

20 consumer computing Microcomputer SAAS

21 ENTERPRISE computing? Iaas Serverless

22 apps containers Platform Infrastructure

23 apps fa as containers Platform Infrastructure

24 apps fa as containers INFRASTRUCTURE - Platform someone else's job Infrastructure

25 Focus on building apps Docker? What s that? new architecture

26 Use existing FaaS s Write own FaaS new architecture

27 Event-Driven Events can be almost anything new architecture

28 Fa as e v e n t s Message (queue) HTTP call FS or DB monitor INVOKE Function Inbound Alexa

29

30 WE (YOU?) Already DOING THIS Google FaaS Image OCR Translate Our own FaaS

31 WE (YOU?) Already DOING THIS Twilio for SMS my app Stripe (payments) Image resize Send/format Auth with Okta lots more!

32 ARCHITECTURAL SHIFT Include lib in project Call a FaaS Include lib in project Call a FaaS

33 Small (a unit of work) Single-purpose Fa as

34 Short Running Stateless Fa as

35 FaaS Implementations - Java

36 Invokation Can be invoked by any platform (doesn t have to be Java)

37 Fn Project Fa as Implementations

38 OpenWhisk openwhisk.incubator.apache.org/ Fa as Implementations

39 Amazon Lambda Fa as Implementations

40 DEMO Fn Project

41 (make sure docker is running) fn start fn init --runtime java hello fn run // Hello World Ultra creative template 41

42 Ultra creative template 42

43 Ultra creative template 43

44 fn run - just a local execution

45 export FN_REGISTRY=prpatel fn deploy --app projectfn fn routes list projectfn path image endpoint /hello prpatel/hello:0.0.4 localhost:8080/r/projectfn/hello Ultra creative template 45

46 Database (persistent storage) Message Queues (msg ing between function calls) fn project

47 Orchestrate multiple function calls (Fn Flow) asynchronous functions (consumed by longrunning components) fn project

48 Fn orchestration

49 DEMO Open Whisk

50 public static JsonObject main(jsonobject args); All OpenWhisk actions accept/ return JSON objects openwhisk

51 Ultra creative template 51

52 gradle jar wsk -i action create hello-java build/libs/hello-1.0.jar --main example.hello wsk -i action invoke /guest/hellojava --param name Pratik blocking Ultra creative template 52

53 Comparison matrix

54 Framework Langs supported Deployment targets Ease of Use OpenWhisk Project Fn Open FaaS Kubeless

55 Framework WHO THE HELL KNOWS? Langs supported Deployment targets Ease of Use OpenWhisk Project Fn Open FaaS Kubeless

56 DESTROY OUR SERVERS? Ultra creative template 56

57

58 Not quite yet! Ultra creative template 58

59 WE (YOU?) Already DOING THIS Twilio for SMS my app Stripe (payments) Image resize Send/format Auth with Okta lots more!

60 Fa as As a developer, execution cost is my *least important* concern

61 Fa as Time to market

62 Fa as Cost of development

63 THANK YOU follow me on twitter: References: serverless_exhilarating_terrifying_ridiculous_name/