ScaleDay conference

1. Grégoire Leroy
PO - Serverless
Behind the scenes of Scaleway Functions :
when Kubernetes meets our products
Antoine Masselot
Devops - Serverless

2. Delegate your Ops !
What’s Serverless ?

3. Function As A Service

4. Delegate your Ops !
Always available, scalable at will, and fully managed
Scalability
High
Availability
Managed
Ops

5. Focus on business !
Only pay for what you use, based on a fine-grained ecosystem
Save Money Easy to use
Business
first

6. Common use case
As a Web Developer, I want to deploy my Application….
Code Upload Deploy Run

7. Behind the scenes

8. Overview
1 function = 1 docker image
=Scaleway Function Docker Image

9. Overview
1 function instance = 1 Kubernetes Pod
=Function Instance Kubernetes Pod

10. Lifecycle of a Serverless Application
Code Upload Trigger ExecuteScaleBuild
Provider
Developer

11. Multiple Runtimes, developed and maintained by Scaleway
8.10
10.10
2.7
3.7
1.10
Code Upload Trigger ExecuteScaleBuild

12. Multiple Runtimes, developed and maintained by Scaleway
8.10
10.10
2.7
3.7
1.10
AWS Lambda compatible
Code Upload Trigger ExecuteScaleBuild

13. import json
def handle(event, context):
response = {
“message”: “Come to the dark side, we have cookies”
}
return {
“body”: json.dumps(response),
“statusCode”: 200
}
Code Upload Trigger ExecuteScaleBuild

14. import json
def handle(event, context):
response = {
“message”: “Come to the dark side, we have cookies”
}
return {
“body”: json.dumps(response),
“statusCode”: 200
}
Code Upload Trigger ExecuteScaleBuild

15. Serverless framework
Deploy Upload source code Create functions
Serverless deployDevelop/Code Create Namespace
Code Upload Trigger ExecuteScaleBuild

16. service:
name: hello-scaleday
provider:
name: scaleway
runtime: python3
scwToken: <token>
scwOrgId: <Org-id>
plugins:
- serverless-scaleway-functions
functions:
myFunction:
handler: handler.py
minScale: 0
maxScale: 20
memoryLimit: 1024
env:
MY_ENV: MY_VALUE
Code Upload Trigger ExecuteScaleBuild

17. service:
name: hello-scaleday
provider:
name: scaleway
runtime: python3
scwToken: <token>
scwOrgId: <Org-id>
plugins:
- serverless-scaleway-functions
functions:
myFunction:
handler: handler.py
minScale: 0
maxScale: 20
memoryLimit: 1024
env:
MY_ENV: MY_VALUE
Provider related - Deploy on Scaleway
Code Upload Trigger ExecuteScaleBuild

18. service:
name: hello-scaleday
provider:
name: scaleway
runtime: python3
scwToken: <token>
scwOrgId: <Org-id>
plugins:
- serverless-scaleway-functions
functions:
myFunction:
handler: handler.py
minScale: 0
maxScale: 20
memoryLimit: 1024
env:
MY_ENV: MY_VALUE
Function Configuration
Code Upload Trigger ExecuteScaleBuild

19. Container Registry
From Source Code to a re-usable Docker Image
Object Storage
Source Code Docker Image
.js
.zip archive
Upload Build
Code Upload Trigger ExecuteScaleBuild

20. Container Registry
From Source Code to a re-usable Docker Image
Object Storage
Source Code Docker Image
.js
.zip archive
Upload Build
Code Upload Trigger ExecuteScaleBuild

21. What is a Runtime ?
HTTP Server Function Code
Runtime
Docker Container
Code Upload Trigger ExecuteScaleBuild

22. What is a Runtime ?
HTTP Server Function Code
Runtime
Docker Container
End Users
Code Upload Trigger ExecuteScaleBuild

23. Container Registry
How do we build your code ?
Knative Build
Object Storage
Source Code Docker Image
Build Pipeline
.js
.zip archive
Code Upload Trigger ExecuteScaleBuild

24. I. Download Source Code
.zip
Download Codefinder
Code Upload Trigger ExecuteScaleBuild
Object Storage

25. II. Set up function environment
.zip
Download Codefinder Configure environment
Runtime - Dockerfile
Code Upload Trigger ExecuteScaleBuild
Object Storage

26. II. Outputs packaged code
.zip
Object Storage
Download Codefinder Configure environment
Packaged code
Code Upload Trigger ExecuteScaleBuild
Runtime - Dockerfile

27. Container Registry
Build source code into a Docker image, and store it inside a Registry
Build and Push
Packaged code
Code Upload Trigger ExecuteScaleBuild

28. Buffer
Code Upload Trigger ExecuteScaleBuild
Load Balancer
CRONUSER

29. Buffer
Code Upload Trigger ExecuteScaleBuild
Ingress
CRONUSER

30. Function Instance
HTTP Call
1
My function already exists
Code Upload Trigger ExecuteScaleBuild

31. Buffer
HTTP Call
Cold Start1
Scale from 0
Code Upload Trigger ExecuteScaleBuild

32. Autoscaler
Pulls metrics
Buffer
HTTP Call
Cold Start1
2
Scale from 0
Code Upload Trigger ExecuteScaleBuild

33. Autoscaler
Pulls metrics
Buffer
HTTP Call
Function Instance
Creates
Cold Start
2
3
1
Scale from 0
Code Upload Trigger ExecuteScaleBuild

34. Pulls metrics
Buffer
HTTP Call
Function Instance
Creates
Cold Start1
2
3
Autoscaler
Scale from 0
Code Upload Trigger ExecuteScaleBuild

35. Pulls metrics
Buffer
HTTP Call
Function Instance
Creates
Cold Start1
2
3
Autoscaler
Scale from 0
Code Upload Trigger ExecuteScaleBuild

36. Function Instance
HTTP Call
1
Pulls metrics2
Autoscaler
Scale from 1 to N
Code Upload Trigger ExecuteScaleBuild

37. Pulls metrics
Function Instance
HTTP Call
1 blocks 21
2
Autoscaler
2
Scale from 1 to N
Code Upload Trigger ExecuteScaleBuild

38. Pulls metrics
Function Instance
HTTP Call
1 blocks 21
2
Autoscaler
2
Function Instance
Creates
3
Scale from 1 to N
Code Upload Trigger ExecuteScaleBuild

39. Pulls metrics
Function Instance
HTTP Call
Function Instance
No Cold Start1
2
Autoscaler
Scale from 1 to N
Code Upload Trigger ExecuteScaleBuild

40. Pulls metrics
Function Instance
HTTP Call
Function Instance
No Cold Start1
2
Autoscaler
Scale down
Code Upload Trigger ExecuteScaleBuild

41. Pulls metrics
Function Instance
HTTP Call
Function Instance
No Cold Start1
2
3
Autoscaler
Scale down
Code Upload Trigger ExecuteScaleBuild

42. Pulls metrics
Function Instance
HTTP Call
No Cold Start1
2
Autoscaler
Scale down
Code Upload Trigger ExecuteScaleBuild

43. Min Scale, Max Scale

44. A Function Instance
KUBERNETES POD
HTTP Server Function Code
Runtime
HTTP Server
Queue-proxy
End Users
Code Upload Trigger ExecuteScaleBuild

45. Scaleway + Open Source = FAAS
IstioKnativeKubernetes
Kapsule Beta Container Registry Beta Object Storage GA

46. I need more

47. 8.10
10.10
2.7
3.7
1.10
???
Choose your language !

48. It’s just a function
Containers As A Service

49. Thank you
Follow us on
Twitter and LinkedIn @Scaleway
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