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Serverless Pune meetup 3

In the 3rd meetup of Serverless Pune, we go over basics of Serverless architecture and demo Funktion from Fabric8!

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Serverless Pune meetup 3

  2. 2. VISHAL BIYANI CTO & Founder at infraCloud technologies (www.infracloud.io ) 2004 Java, PLM, JSP, Servlets, Java Swing, 2004-2009 eMatrix, PLM, J2EE, Database, architecture, Shell, Windchill, jUnit, Oracle, 2010 - 2013: Spring, Maven, Jenkins, ElasticSearch, CloudFoundry, Google App Engine, APIs, CI 2013: Puppet, Chef, Ansible, CD/CI, DevOps Coach, Docker, API Mgmt, Microservices, Infra as code, Artifactory, Nexuus, Integration as a Service Now: Containers, Kubernetes, Mesos, Salt, Scale, Distributed, Serverless https://twitter.com/vishal_biyani https://www.vishalbiyani.com
  3. 3. ANNOUNCEMENT TIME We will host a meetup every month and cover more advanced topics We also conduct a Kubernetes meetup every month - Join on https://www.meetup.com/Kubernetes-Pune A Kubernetes 101 & Openshift 101 workshop to be launched in Pune soon
  4. 4. PLEASE RAISE HANDS • If you have worked with either of AWS Lambda/Azure Functions/Google Cloud Functions? • Heard of OpenWhisk/Fission/Funktion? • Work on Go language?
  5. 5. Source: https://github.com/Miserlou/Zappa
  6. 6. TABLE OF FUNCTIONS (PUN INTENDED).. .. • Defining Serverless - evolving definitions • BaaS (Backend As a Service) • FaaS (Function as a Service) • Serverless • Frameworks • Architecture • Benefits & Challenges • Funktion introduction & Demo
  8. 8. What is Serverless? Backend as a Service Use third party systems as much as possible and build systems. Algolia, oAuth are prime examples Reference & highly reccomended read: https://martinfowler.com/articles/serverl ess.html
  9. 9. What is Serverless? Backend as a Service Completely managed backend - and you write rich logic in front end Reference & highly reccomended read: https://martinfowler.com/articles/serverl ess.html
  10. 10. What is Serverless? Function as a Service (FaaS) You only write backend functions Deploying, scaling and managing functions is done by platform Client is stil rich - may be not as rich as in case of BaaS You only write a function; a function can be in any language as long as it can be called from Linux CLI You provide function to the FaaS provider and everything else - deploying, scaling on demand and running function is taken care by the provider Front end is relatively aware of various functions but the implementation is hidden from front end.
  11. 11. AWS Lambda Google Cloud Functions Azure Functions Commercial frameworks OpenSource or OpenSource+Managed frameworks Enabling Frameworks/ Toolkits Apache OpenWhisk Fission - Platform9 Fabric8- Funktion IronIO - Function Enables Easy deploy to AWS & openwhisk Apex - deploy to AWS Lambda Python Apps on AWS Lambda
  12. 12. SERVERLESS - 100K VIEW Event/Trigger Functions ServicesClient/Apps API Gateway Object Storage Monitoring System Voice Nodejs Function Microservice Java Function Python Function Database Analytics Object Storage External API Another function
  13. 13. SERVERLESS: KEY ARCHITECTURAL CONSIDERATIONS State • There is no state you maintain beyond execution of a function Execution • They are intended to be short lived (AWS puts a 5 minute timeout on a function) Startup - fast? • There might be some latency in startup - as the execution instance is created on the fly API Management • Managing the API gateway is an important aspect - weather it is a HTTP or voice or FTP gateway How to CI/CD, development? • At the moment tooling is still evolving and is an important aspect
  14. 14. Typical servers in business and enterprise data centers deliver between 5 and 15 percent of their maximum computing output on average over the course of the year. http://www.forbes.com/sites/benkepes/2015/06/03/30-of-servers-are-sitting-comatose-according-to- research/#6861ea9f2c2e
  15. 15. SERVERLESS: BENEFITS & CHALLENGES Benefits Saves $$ - you pay per execution Easy to bootstrap new ideas You literally pay as you scale Lesser operation overhead Challenges Same login in multiple functions Where to store configs? Not easy to test How to manage 100s of functions, deploy & version? Discovery, monitoring and debugging is not yet easy
  16. 16. HOW TO DEPLOY SERVERLESS ON PREMISE/HYBRID? • Apache OpenWhisk, Iron Functions, Fission, Fabric.io Funktion can be deployed on premise/any machine cluster • The projects are incubating and maturing fast. Many of them are targetting Kubernetes as their target (Ease of creating routes & spining up containers etc.) • You might need additional framework/infra such as messaging queue etc. based on where you deploy!
  17. 17. FUNKTION
  18. 18. FUNKTION • Part of larger Fabric8 platform • Enables lambda style development and deployment on Kubernetes
  19. 19. REMEMBER 4 THINGS • Funktion - the actual function • Runtime - The language/platform runtime • Connector - Connect stuff • Flow - Make a flow from functions and connectors
  20. 20. FUNKTION INSTALLATION • Install funktion install platform --namespace default • Verify kubectl get pod • If you want to use Fabric8 platform funktion install operator
  21. 21. RUNTIMES & CONNECTORS • funktion install runtime • funktion install connector http4 timer twitter • funktion install connector --list
  22. 22. CREATING FIRST FUNCTION • funktion create fn -f hello.js • funktion create fn -n hello -s 'module.exports = function(context, callback) { callback(200, "Hello, world!n"); }’ • funktion get fn • funktion url fn hello
  23. 23. FLOW • A set of functions in pipeline • funktion create flow timer://bar?period=5000 http://ip.jsontest.com/
  24. 24. WHAT NEXT > NEXT MEETUPS • Deeper dive and hands on demos on some frameworks • Hands on sessions on AWS Lambda, Google Functions & Azure functions • Hackathons - where we will hack together some use cases and develop some frameworks together
  25. 25. ধন্যবাদ! Dank je! Kiitos! આભાર! धन्यवाद! Grazie! Je vous remercie! ありがとうございました! ਤੁਹਾਡਾ ਧੰਨਵਾਦ! நன்றி! ధన్యవాదాలు! നന്ദി! THANK YOU! Thanks to Redhat India for hosting us Thanks a lot to you the audience who made this possible

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  • SubodhPachghare

    May. 21, 2017

In the 3rd meetup of Serverless Pune, we go over basics of Serverless architecture and demo Funktion from Fabric8!


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