Serverless Architectures: Devoxx 2017 Presentations (includes AWS Lambda, Fn Project)

AWS Lambda, Fn Project, Microservices, Serverless

Transcript

1. Dr Frank Munz @frankmunz www.munzandmore.com/blog #DevoxxMA Serverless Architectures DOAG 2017
3. • Founded munz & more in 2007 • > 15 years Middleware, Cloud, and Distributed Computing • Consulting and High-End Training • Wrote two WebLogic and a Cloud book Dr. Frank Munz @frankmunz
4. Content 1. Clouds 2. FaaS (AWS Lambda) 3. Serverless 4. Frameworks (Fn Project) 5. Conclusion #serverless @frankmunz
5. Clouds #serverless @frankmunz
6. API @frankmunz
7. Elasticity
8. Pay Per Use • 1 US cent/h (micro), geo-distribution included • You own a massively parallel, distributed and highly available supercomputer with linear costs: 1 instance for 100 hours $= 100 instances for 1h @frankmunz
9. Cloud Computing API Elasticity Pay per use Fully Programmable Data Center
10. PaaS IaaS Amazon EC2 Oracle CI AWS Beanstalk Oracle ACCS FaaS AWS Lambda Oracle TBD Automated elasticity. True pay per use. Container Service AWS ECS OCCS API? Elasticity? Pay per use?
11. AWS Lambda #serverless @frankmunz
12. FaaS: AWS Lambda • AWS announced Lambda in 2014 • Lambda is Function as a Service (FaaS) @frankmunz
13. AWS Lambda AWS SAM Local: test and locally run Lambda (Public Beta) event: event passed to function context: runtime context callback: optional return (or null) @frankmunz
14. Create Lambda S3 @frankmunz Vendor lock-in?
15. Lambda Tech Details I • Stateless, with 5 min max exec time • Start threads and processes • Events based, but no event bus visible • Retries + dead letter Q • You can use environment variables • Invocation times differ per language and per call @frankmunz
16. Lambda Tech Details II • No config for scaling • You pay for GB *s, metered in 100 ms • One event can trigger several funcs • Function executes at least once (-> idempotent f) • AWS Step Function: visual designer • No SLAs @frankmunz
17. Test Code 1 2 3 4
18. Example: REST Request
19. Example: Image Recognition Flow munz & more #19 Extract meta data AI based recognition Create thumbnail How to model flow?
20. λ Example: BaaS Define an Intent with Slots and Utterances speechlet
21. Pricing Every started request is charged: • First 1 million req/month are free, forever + 400,000 GB seconds of compute time • Measured in increments of 100 msec • $0.20 per 1 million req + $0.00001667 per GB second Tip: Use AWS Cloud Watch alarms for billing! @frankmunz
22. Cost Savings Expedia(2016): – 2.3 billions calls – 200k hours / month – $ 550 a month Postlight – API GW, Lambda, Serverless – Costs dropped 2 orders of magnitude down to $ 370 https://www.youtube.com/watch?v=gT9x9LnU_rE https://trackchanges.postlight.com/serving-39-million-requests-for-370-month-or-how-we-reduced-our-hosting-costs-by-two-orders-of-edc30a9a88cd http://serverlesscalc.com/ @frankmunz
23. FaaS #serverless @frankmunz
24. Function as a Service • Automated elasticity • True pay per invocation • Ephemeral compute Definition Characteristics • Event based • Reduced control plane (mem + CPU + I/O) • Uses container tech
25. AMIGO: Public Cloud Services Amazon Microsoft IBM Google Oracle Name Lambda Azure Functions Open Whisk Cloud Functions tbd Year 2014 2016 2016 2016 2016 Status prod prod prod beta announced Language Support NodeJS 4.3.2, Java8,Python 2.7, .Net C#, native Linux JS, PHP, C#, F#, Python, bash, PowerShell NodeJS, Java, Phython, (Docker) NodeJS (not Java) Docker based ? Remarks Bundle functions, OneDrive and Bot integration Apache Incubator Deploy from github or BitBucket, CLI Based on open source Fn Project? Link https://aws.amazon. com/lambda/ https://azure.microsoft.co m/en- us/services/functions/ https://openwhisk.apa che.org/ https://azure.microsoft.co m/en- us/services/functions/ https://cloud.oracle.com/home
26. Security “Try to attack something that only lives for few milli-seconds” (AWS) @frankmunz
27. Youtube: Gone in 60ms https://www.youtube.com/watch?v=YZ058hmLuv0 @frankmunz
28. Microservices Developing a single application as • a suite of small services • each running in its own process / owns it‘s data • communicating with lightweight mechanisms (M. Fowler / J. Lewis) https://martinfowler.com/articles/microservices.html @frankmunz
29. FaaS = Microservice? • FaaS fulfills M. Fowler’s microservices definition • A real micro service consists of multiple functions • FaaS vs. Docker / Kubernetes? ✅ Benefits of FaaS - Serverless - Zero config auto scaling - True pay per use -> higher abstraction Limits of FaaS - Language choice - Resource limits - Vendor lock-in -> reduced flexibility @frankmunz
30. Serverless #serverless @frankmunz
32. Serverless Mark Cavage, Java One 2017: “Reduce notion of all infrastructure” Serverless Example: AWS SQS 1 Mio Req $0.40 @frankmunz Wasn’t that PaaS ? Yes it‘s PaaS, but serverless requires… • Never pay for idle • Automated elasticity • Reduced config settings
33. Frameworks #serverless @frankmunz
34. Serverless Frameworks dealing with … @frankmunz AWS Chalice Portability Complexity Standards
35. FaaS OS Frameworks Overlap in functionality -> expect consolidation Survival is about: • Integration: K8s, Traefik, Zipkin, Prometheus, Kafka etc. • Adoption, adoption, adoption • FaaS as PaaS implementation? https://github.com/faas-lane/ FaaS-Lane/tree/master/candidates @frankmunz
36. Fn Project • Apache 2, Open Source Java One 2017 • Fn Server (micro API GW), LB, Flow • Function / Container duality • Docker is only dependency -> polyglot @frankmunz
37. Fn Project • Jackson for JSON marshalling in Java • JAX-RS demo • Hot functions (30 seconds) • Fn PaaS service likely? J @frankmunz
38. Fn Flow Java 8 CompletableFutures API
39. Fancy a demo?
40. Outlook • Oracle’s Cloud Native Container strategy – Kubernetes – Wercker – Pay per invocation (?) • Fn Project as PaaS and on premises • Azure Container Instance: pay per invoke (today!) @frankmunz
41. Conclusion #serverless @frankmunz
42. TL;DR #serverless & #FaaS in all major clouds / could compose µ out of / PaaS ⊇ Serverless ⊇ FaaS / FaaS = stateless / true pay per use / automated scalability / event driven / integrates with other CS / architect against vendor lock in / cloud agnostic FaaS frameworks emerge / FaaS frameworks consolidation ahead / only technically the new µ (AWS). @frankmunz
43. 3 Membership Tiers • Oracle ACE Director • Oracle ACE • Oracle ACE Associate bit.ly/OracleACEProgram 500+ Technical Experts Helping Peers Globally Connect: Nominate yourself or someone you know: acenomination.oracle.com @oracleace Facebook.com/oracleaces oracle-ace_ww@oracle.com
44. munzandmore.com/blog @frankmunz munzandmore.com/youtube