Abstract -------- This talk introduces OpenFaaS, an open source platform for serverless functions. We begin by installing, running the platform and invoking a machine learning function within 60 seconds (ish). Next we step up and look at the level of architecture and key pillars of OpenFaaS: developer first, operator friendly and community focused. We close by looking at a multiuser platform built on top OpenFaas. The objective of this talk is openFaaS the serverless platform and OpenFaaS cloud the multi-user environment for practicing git ops with functions. Bio --- Edward Wilde is a core contributor to the OpenFaaS project and platform architect at Form3

1. Edward Wilde - Core Contributor - @ewilde
Platform Architect, Form3
Serverless: when functions and GitOps collide
Cloud Native Computing Paris 2018

2. What we are going to cover?
• Installing OpenFaaS in 60s 📈
• Your first function
• Autoscaling
• GitOps + Functions = OpenFaaS Cloud
• Live demo 🔥 💳
• Get involved 👍
Tweet @openfaas 🤳 📸 @ewilde

3. OpenFaaS - Functions as a Service
• Started in Nov 2016
• Containers, Alexa, Swarm 🐳
• Full time team @ VMware
• Production users 💻
• Bossie awards 🥇🥈

4. Serverless Functions Made Simple
Easy to use

5. Serverless Functions Made Simple
Easy to use
Any code
Anywhere
Any scale
You decide the limits

6. Developer-first
Gets out your way
• 📄
• 💬
• 🕸

7. Templates for most popular languages*
* DigitalOcean Currents report https://do.co/2wjzUyR

8. Templates for most popular languages*
* DigitalOcean Currents report https://do.co/2wjzUyR

9. Installing OpenFaaS democratically
LIBERTY, EQUALITY, FRATERNITY
• Raspberry Pi ARM (docker swarm)
• Docker swarm x86-64
• Kubernetes x86-64
▪ List

10. Demo
What you saw:
• Installing OpenFaaS
• Function Store
• Machine-learning
• Creating a new function

11. Write a function
// Handle a serverless request
func Handle(req []byte) string {
return fmt.Sprintf("Hello, Go. You
said: %s", string(req))
}
handler.go
Use tools like dep for vendoring
faas new hello-paris --lang go -p ewilde
Go
Template
Docker
Image
$ faas up1. 2.
Handler
Registry
+
Gateway

12. Stack files (YAML)
functions:
move-money:
lang: go
handler: ./move-money
image: move-money:0.1
register-user:
lang: go
handler: ./register-user
image: register-user:0.2
environment:
http_proxy: http://corp.ad.com:3128
secrets:
- bank-api-key

13. Stack files (YAML)
functions:
move-money:
lang: go
handler: ./move-money
image: move-money:0.1
register-user:
lang: go
handler: ./register-user
image: register-user:0.2
environment:
http_proxy: http://corp.ad.com:3128
secrets:
- bank-api-key

14. Stack files (YAML)
functions:
move-money:
lang: go
handler: ./move-money
image: move-money:0.1
register-user:
lang: go
handler: ./register-user
image: register-user:0.2
environment:
http_proxy: http://corp.ad.com:3128
secrets:
- bank-api-key

15. Stack files (YAML)
functions:
move-money:
lang: go
handler: ./move-money
image: move-money:0.1
register-user:
lang: go
handler: ./register-user
image: register-user:0.2
environment:
http_proxy: http://corp.ad.com:3128
secrets:
- bank-api-key

20. Why OpenFaaS?

21. Why OpenFaaS?
• Build and deployment pipeline

22. Why OpenFaaS?
• Build and deployment pipeline

23. Why OpenFaaS?
• Build and deployment pipeline

24. Why OpenFaaS?
• Build and deployment pipeline
• Portability

25. Why OpenFaaS?
• Build and deployment pipeline
• Portability
• Open-source

26. Why OpenFaaS?
• Build and deployment pipeline
• Portability
• Open-source

27. Why OpenFaaS?
• Build and deployment pipeline
• Portability
• Open-source

28. Why OpenFaaS?
• Build and deployment pipeline
• Portability
• Open-source
• Fits our engineering tao
a Chinese word signifying
'way', 'path', 'route', ‘road' #fancy

29. Why OpenFaaS?
• Build and deployment pipeline
• Portability
• Open-source
• Fits our engineering tao
• Open vs closed source
a Chinese word signifying
'way', 'path', 'route', ‘road' #fancy

30. Why OpenFaaS?
• Build and deployment pipeline
• Portability
• Open-source
• Fits our engineering tao
• Open vs closed source
• Loosely coupled systems
a Chinese word signifying
'way', 'path', 'route', ‘road' #fancy

31. Why OpenFaaS?
• Build and deployment pipeline
• Portability
• Open-source
• Fits our engineering tao
• Open vs closed source
• Loosely coupled systems
• Unix philosophy
a Chinese word signifying
'way', 'path', 'route', ‘road' #fancy

32. Why OpenFaaS?
• Build and deployment pipeline
• Portability
• Open-source
• Fits our engineering tao
• Open vs closed source
• Loosely coupled systems
• Unix philosophy
• Vendor neutral
a Chinese word signifying
'way', 'path', 'route', ‘road' #fancy

35. Kubernetes FaaS compared
OpenFaaS Kubeless Knative
Vendor Community Bitnami Google
Maturity 2.5yr 2.5yr 6mo
Stable ✅ ✅ ❌
Docker ✅ ❌ ✅
YAML Stack/CRD CRD CRD
Lightweight ✅✅ ✅ ❌
Code limits ✅ No limit ❌50kb/1mb ✅ No limit
Zero-scale ✅ ❌ ✅

37. GitOps + Functions

38. GitOps + Functions
= OpenFaaS Cloud

39. Are you in?

41. Initial
Funding
+100GBP
Move
1GBP
Charity
Pot
Pledged
Pot
Main
Account
90/100 GBP 10/100 GBP
Personal Account
Working with my bank’s API

42. https://www.msf.org.uk/
You register with the App and I’ll pledge

43. Pledge via this URL:
https://pledge-app.mini.o6s.io
https://bit.ly/2PffyBy

44. How it works
https://bit.ly/2PffyBy
https://pledge-app.mini.o6s.io

45. OpenFaaS Cloud ☁
- Managed
- Multi-user
- Personal dashboard
- CI/CD (git push)
- Feedback via GitHub/
GitLab

46. OpenFaaS Cloud ☁
- Managed
- Multi-user
- Personal dashboard
- CI/CD (git push)
- Feedback via GitHub/
GitLab
Free Community Cluster*

47. OpenFaaS Cloud Dashboard ☁

48. Summing up
Don’t get locked-in:
• Kubernetes & Docker
• Existing microservices
and functions
• OpenFaaS/Cloud with
GitHub or GitLab
Serverless 2.0

49. Community Centric 14k
x3.5 growth

50. Community Centric 14k
x3.5 growth

51. Get involved
1. Join Slack 👌
https://docs.openfaas.com/community
2. Try the self-paced workshop! 💻
https://github.com/openfaas/workshop
3. Pickup a small PR 💻
https://docs.openfaas.com/contributing/get-started/

53. Customer
Bank (or regulated institution)
Our customer's
customer
Bank A
Bank B
Bank etc...
Form3
Financial Cloud

54. Customer
Bank (or regulated institution)
Our customer's
customer
Bank A
Bank B
Bank etc...
Form3
Financial Cloud

55. Customer
Bank (or regulated institution)
Our customer's
customer
Bank A
Bank B
Bank etc...
Form3
Financial Cloud

56. Customer
Bank (or regulated institution)
Our customer's
customer
Bank A
Bank B
Bank etc...
Form3
Financial Cloud

57. Customer
Bank (or regulated institution)
Our customer's
customer
Bank A
Bank B
Bank etc...
Form3
Financial Cloud

58. working
and/or
We only hire nice people!
Cloud native yay!
https://form3.tech

59. Thank you!
www.openfaas.com @ewilde