Kubernetes and AWS Lambda can  play nicely together

•

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Vendor lock-in can be a worry for many engineers . A new innovative approach, will for the first time, allow open-source serverless to run on AWS Lambda or Kubernetes using the same deployment artefact, packaged using the tools we love: containers. OpenFaaS is an open-source function as a service (FaaS) platform on the [CNCF serverless landscape](https://landscape.cncf.io/format=serverless). With OpenFaaS you can package anything as a serverless function and deploy to Kubernetes using containers. Due to UNIX-like primitives in the core architecture, it was possible to extend the system to run functions on both Kubernetes and AWS Lambda depending on user preference. The core components of OpenFaaS still run on Kubernetes but the functions are deployed and invoked on AWS Lambda

Technology

Kubernetes and AWS Lambda can  
play nicely together
Edward Wilde Core Contributor, Architect Form3
Serverless Practitioners Summit - 2019

• Extending OpenFaaS
• Integrating with AWS Lambda 🤨
• Combining Kubernetes with Lambda 🖖
The Session
Tweet @ewilde 🤳 📸

Top OpenFaaS providers
faas-netes
faas-nomad
faas-swarm
faas-fargate
🥇
available on GitHub

faas-lambda architecture
🔐 k8s secrets 
for AWS creds

faas-lambda architecture
🔐 k8s secrets 
for AWS creds
🔐  
iam roles

Why use OpenFaaS on Lambda?
• Migration path to k8s and multi-cloud
• Legacy integration with proprietary services
• Managed infrastructure
• Bursting / Free tier

Beneﬁts of OpenFaaS on Kubernetes
• Portability
• Control over timeouts / scaling
• Memory, CPU and networking
• Ecosystem beneﬁts

How does deployment work?
Download images

How does deployment work?
Download images
Extract layers

How does deployment work?
Download images
Extract layers
Create shim 🛠

How does deployment work?
Download images
Extract layers
Create shim 🛠
Repackage. 🗜

Demo - deploying to lambda
🔐  
iam roles

What you saw
• Deploying functions in containers
• Execution runtime on lambda
• Slow crypto 🐌 + 🔐 (4 - 9s)

Platform comparison
OpenFaaS on k8s Lambda
Memory 12 TiB*1 3GiB
CPU 96cores*1 / GPU/ FGPA 2cores?
Timeout 290 years + 30s API / 15m
Code limits ∞ 50 MB
/tmp ∞ 512 MB
Minimum replicas ✅ ❌
Zero-scale ✅ ✅
Ease of Use ✅✅✅✅ ✅✅✅
*1 current largest cloud instance I could find

faas-federation architecture - runtime split

faas-federation architecture - geo split

faas-federation
• Single control plane
• Multiple execution runtimes
• Geo-location split
• Split deployment based on ‘platform name’
• Later on? CPU/Memory/Capacity

Demo 2 - faas-federation with OpenFaaS
/cert-sign
Step 1

Demo 2 - faas-federation with OpenFaaS
/cert-info
Step 2

Demo Time - faas-federation with OpenFaaS

Summing up
• Multiple
• providers
• regions
• Same developer experience
• Three new OSS projects
• Lots of potential
🧮

What’s next?
• Open-source faas-lambda
• Increase template support
• Going to production

1. Join Slack 👌
https://docs.openfaas.com/community
2. Try the self-paced workshop! 💻
https://github.com/openfaas/workshop
3. Meet up with the OpenFaaS team here at KubeCon
https://www.openfaas.com/blog/meet-us-at-barcelona/
Get involved

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1. Kubernetes and AWS Lambda can   play nicely together Edward Wilde Core Contributor, Architect Form3 Serverless Practitioners Summit - 2019

2. • Extending OpenFaaS • Integrating with AWS Lambda 🤨 • Combining Kubernetes with Lambda 🖖 The Session Tweet @ewilde 🤳 📸

3. Top OpenFaaS providers faas-netes faas-nomad faas-swarm faas-fargate 🥇 available on GitHub

4. Provider model

5. Provider model

6. Provider model

7. faas-lambda architecture

8. faas-lambda architecture

9. faas-lambda architecture 🔐 k8s secrets  for AWS creds

10. faas-lambda architecture 🔐 k8s secrets  for AWS creds 🔐   iam roles

11.

12.

13.

14.

15.

16. Example deployment handler

17.

18. Why use OpenFaaS on Lambda? • Migration path to k8s and multi-cloud • Legacy integration with proprietary services • Managed infrastructure • Bursting / Free tier

19. Beneﬁts of OpenFaaS on Kubernetes • Portability • Control over timeouts / scaling • Memory, CPU and networking • Ecosystem beneﬁts

20. How does deployment work?

21. How does deployment work? Download images

22. How does deployment work? Download images Extract layers

23. How does deployment work? Download images Extract layers Create shim 🛠

24. How does deployment work? Download images Extract layers Create shim 🛠 Repackage. 🗜

25. How does invoke work?

26. How does invoke work? 🔨 /Invoke

27. Python shim

28. Python shim

29. Python shim

30. • List • List • List • List Node shim

31. • List • List • List • List Node shim

32. • List • List • List • List Node shim

33. Golang shim • List • List • List • List

34. Golang shim • List • List • List • List

35. Demo - deploying to lambda

36. Demo - deploying to lambda 🔐   iam roles

37. Demo Time - faas-lambda with OpenFaaS

38. What you saw • Deploying functions in containers • Execution runtime on lambda • Slow crypto 🐌 + 🔐 (4 - 9s)

39. Platform comparison OpenFaaS on k8s Lambda Memory 12 TiB*1 3GiB CPU 96cores*1 / GPU/ FGPA 2cores? Timeout 290 years + 30s API / 15m Code limits ∞ 50 MB /tmp ∞ 512 MB Minimum replicas ✅ ❌ Zero-scale ✅ ✅ Ease of Use ✅✅✅✅ ✅✅✅ *1 current largest cloud instance I could find

40. faas-federation architecture - runtime split

41. faas-federation architecture - runtime split

42. faas-federation architecture - geo split

43. faas-federation • Single control plane • Multiple execution runtimes • Geo-location split • Split deployment based on ‘platform name’ • Later on? CPU/Memory/Capacity

44. Demo 2 - faas-federation with OpenFaaS

45. Demo 2 - faas-federation with OpenFaaS /cert-sign Step 1

46. Demo 2 - faas-federation with OpenFaaS /cert-sign Step 1

47. Demo 2 - faas-federation with OpenFaaS /cert-sign Step 1

48. Demo 2 - faas-federation with OpenFaaS /cert-sign Step 1

49. Demo 2 - faas-federation with OpenFaaS /cert-sign Step 1

50. Demo 2 - faas-federation with OpenFaaS

51. Demo 2 - faas-federation with OpenFaaS /cert-info Step 2

52. Demo 2 - faas-federation with OpenFaaS /cert-info Step 2

53. Demo 2 - faas-federation with OpenFaaS /cert-info Step 2

54. Demo 2 - faas-federation with OpenFaaS /cert-info Step 2

55. Demo 2 - faas-federation with OpenFaaS /cert-info Step 2

56. Demo Time - faas-federation with OpenFaaS

57. Summing up • Multiple • providers • regions • Same developer experience • Three new OSS projects • Lots of potential 🧮

58. What’s next? • Open-source faas-lambda • Increase template support • Going to production

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

60. 1. Join Slack 👌 https://docs.openfaas.com/community 2. Try the self-paced workshop! 💻 https://github.com/openfaas/workshop 3. Meet up with the OpenFaaS team here at KubeCon https://www.openfaas.com/blog/meet-us-at-barcelona/ Get involved

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