Serverless computing (aka FaaS, Functions as a Service) is one of the hottest topics in the field of cloud computing. IBM Cloud Functions (built on Apache OpenWhisk) is one player in this new field. During this presentation, Frederic will talk about his journey through the world of serverless computing, the core concepts, the value proposition and differentiators, typical usage and real-world customer scenarios, and the underlying programming model of serverless computing in general and Cloud Functions in particular, latest trends and additions, and conclude his session with some fancy demos.

1. { Event-driven and
serverless
Applications with
OpenWhisk
Cloud Functions }
Frédéric Lavigne
IBM Cloud Technical Product Manager
frederic.lavigne@fr.ibm.com
@L2FProd

2. https://github.com/IBM-Bluemix/openwhisk-emoting

3. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
How would you
implement this app?

4. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
It needs to be always available
It needs to handle the unexpected load
I should not pay if it is not being used

5. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }Evolution of serverless
Increasingfocusonbusinesslogic
Decreasing concern (and control) over stack implementation
Bare Metal
VM VM
VM
Virtual machines
Functions
Containers

6. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
What is serverless aka
Functions as a Service?

7. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }What is serverless aka Functions as a Service?
Runs code only
on-demand on a
per-request basis

8. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
Runs code only on-demand on
a per-request basis
Serverless
deployment &
operations model
VM
No servers Just code
What is serverless aka Functions as a Service?

9. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
Runs code only on-demand on
a per-request basis
Optimal
utilization &
granular pricing
zzz
time
charged
What is serverless aka Functions as a Service?

10. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
Runs code only on-demand on
a per-request basis
Scales on
a per-request
basis
What is serverless aka Functions as a Service?

11. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
What is
IBM Cloud Functions?

12. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }What is IBM Cloud Functions?
Functions as a
Service (FaaS)
platform to execute
code in response to
events

13. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
Delivered as
Open source via Apache
openwhisk.incubator.apache.org
FaaS platform to execute code
in response to events
What is IBM Cloud Functions?

14. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
Managed service on
IBM Cloud
ibm.biz/functions
FaaS platform to execute code
in response to events
What is IBM Cloud Functions?

15. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
Triggers
(response)
Rules
Actions
(code)
Source
(events) Results
What is IBM Cloud Functions?

16. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
DEMO
<hello world />
<hello world with params />
<hello world as web action />
<hello world as API />
<emoting API />
<emoting and triggers />

17. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
PUT /questions
GET /questions
GET /stats
PUT /ratings
</> </>
</> </>
html, css,
js, images

18. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
What is serverless
good for?

19. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
IBM Cloud
Functions allows
you to build up an
entirely serverless
application
architecture
Openwhisk
IOT
Mobile
Cognitive
APIs
Data
What is serverless good for?
Functions

20. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
Volatile workload that can
be split in smaller short-
running pieces.
Suited for sporadic as well
as heavy load scenarios.
What is serverless good for?

21. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
Execute logic in response to database change
Perform analytics on sensor input messages
Provide cognitive computing via chatbots
Schedule tasks performed for a short time
Invoke autoscaled APIs and mobile backends

22. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
Swift Action
Dark Vision
Discover dark data in videos with IBM Watson and IBM
Cloud Functions.
Use cases and real world examples
https://github.com/IBM-Bluemix/openwhisk-darkvisionapp

23. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
Swift Action
Chatbots
Implement serverless conversational applications, like
chatbots, by passing chat messages to your functions for
further processing.
Use cases and real world examples

24. © 2017 IBM Corporation l IBM Cloud University l Berlin 2017
IBM Cloud Functions
Learn more

25. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
Commercial offering home:
ibm.biz/functions
Open-source offering home:
openwhisk.org
Slack:
slack.openwhisk.org
Learn more
Learn
more

26. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
Github github.com/apache/incubator-
openwhisk
Twitter twitter.com/openwhisk
Medium medium.com/openwhisk
Slideshare slideshare.net/OpenWhisk
Youtube youtube.com/channel/
UCbzgShnQk8F43NKsvEYA1SA
Learn more
Learn
more

27. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }
Q&A

28. © 2017 IBM Corporation
{ IBM Cloud Functions | Codemotion Berlin 2017 }Dark Vision
Image
Analysis
PUBLIC NETWORK CLOUD NETWORK
OPENWHISK
REST APIAPP STORAGE
Video
Extractor
Audio
Analysis

29. © 2017 IBM Corporation l IBM Cloud University l Berlin 2017
IBM Cloud Functions
PUBLIC NETWORK CLOUD NETWORK
OPENWHISK
REST APIAPP STORAGE
Video
Extractor
1 2
3
4
Image Frames
and
Audio Track
5
Dark Vision

30. © 2017 IBM Corporation l IBM Cloud University l Berlin 2017
IBM Cloud Functions
Image
Analysis
CLOUD NETWORK
OPENWHISK
STORAGE
Image Frame
1
2
3
Watson
Visual Recognition
4
5
Dark Vision

31. © 2017 IBM Corporation l IBM Cloud University l Berlin 2017
IBM Cloud Functions
CLOUD NETWORK
OPENWHISK
STORAGE
Get
TranscriptWatson
Speech to Text
Audio Track
1
2
3
4
Dark Vision

32. © 2017 IBM Corporation l IBM Cloud University l Berlin 2017
IBM Cloud Functions
CLOUD NETWORK
OPENWHISK
STORAGE
Save
TranscriptWatson
Speech to Text
2
3
1
Dark Vision

33. © 2017 IBM Corporation l IBM Cloud University l Berlin 2017
IBM Cloud Functions
CLOUD NETWORK
OPENWHISK
STORAGE
Text
AnalysisWatson
Natural Language
Understanding
Transcript
1
2
3
4
5
Dark Vision