The document discusses Function as a Service (FaaS) on Kubernetes, outlining its definition, open-source frameworks, and various pros and cons of implementing on-premises FaaS. It highlights notable FaaS frameworks such as Apache OpenWhisk, Funker, and IronFunctions, while evaluating the benefits of control and cost against the challenges of operational complexity and missing features. Additionally, it provides insights on triggers, integration, and testing within the FaaS paradigm.

1. clda.co/faas-­‐kubernetes2/23/2017
"On-­‐premises" FaaS
on Kubernetes

2. About Me
@alex_casalboni
clda.co/faas-­‐kubernetes
Bachelor in Computer Science
Master in Sound & Music Engineering
SoBware Engineer & Web Developer
Cloud Evangelist @ Cloud Academy

3. Agenda
clda.co/faas-­‐kubernetes
What does FaaS mean?
FaaS in the Open-­‐source World
FaaS frameworks for Kubernetes
Pros & Cons of “On-­‐premises” FaaS

4. clda.co/faas-­‐kubernetes
What does FaaS mean?

5. Func;on as a Service
clda.co/faas-­‐kubernetes
h"ps://en.wikipedia.org/wiki/Func5on_as_a_Service
Core component of Serverless
No infrastructure management
Microservices approach
FuncOon as the unit of delivery
MulO-­‐language support (BYOC)
Transparent scaling (PAYG)

6. How do you FaaS?
clda.co/faas-­‐kubernetes
Independent FuncOons
Versioning & Staging
Cross-­‐team CollaboraOon
Triggers/Events
Local unit tesOng
IntegraOon tests
Automated Workflow CI/CD

7. clda.co/faas-­‐kubernetes
FaaS in the Open-­‐source World

8. Open-­‐source FaaS
clda.co/faas-­‐kubernetes
openwhisk.org open.iron.iogithub.com/bfirsh/funker
Apache OpenWhisk Funker IronFunctions

9. Open-­‐source FaaS -­‐ OpenWhisk
clda.co/faas-­‐kubernetes
openwhisk.org
Apache OpenWhisk
github.com/openwhisk/openwhisk/issues/1402
IniOally developed by IBM
FaaS component of IBM Bluemix
Doesn’t run on Kubernetes yet (open issue)
cloudacademy.com/blog/ibm-bluemix

10. github.com/bfirsh/funker
Open-­‐source FaaS -­‐ Funker
clda.co/faas-­‐kubernetes
Funker
Developed by @bfirsh
Based on Docker Swarm
Support for Node, Python and Go
cloudacademy.com/blog/docker

11. Open-­‐source FaaS -­‐ IronFunc;ons
clda.co/faas-­‐kubernetes
git.io/ironfunctions-kubernetes
FaaS component of Iron.io
Runs on Docker
Runs on Kubernetes
open.iron.io
IronFunctions
git.io/ironfunctions-docker

12. clda.co/faas-­‐kubernetes
FaaS frameworks for Kubernetes

13. FaaS on Kubernetes
clda.co/faas-­‐kubernetes
Kubeless by Skippbox
FunkOon by Fabric8
Fission by Pla_orm9

14. Kubeless
clda.co/faas-­‐kubernetes
“Only” a POC (wriaen in Go)
Both HTTP and PubSub
Based on Zookeeper and Kada
+

15. Kubeless Example
clda.co/faas-­‐kubernetes

16. Funk;on
clda.co/faas-­‐kubernetes
@funk;onio
funktion.fabric8.io
Backed by Red Hat (wriaen in Go)
Integrated with fabric8’s Developer Pla_orm
Only Python is supported
Based on connectors (200+)
camel.apache.org/components

17. Funk;on Example
clda.co/faas-­‐kubernetes

18. Fission
clda.co/faas-­‐kubernetes
@fissionio
fission.io
Extensible and Fast by design (wriaen in Go)
Reduced cold starts (warm pool)
Only HTTP triggers for now, but…
Only Node and Python for now, but…

19. Fission Example
clda.co/faas-­‐kubernetes

20. clda.co/faas-­‐kubernetes
Pros & Cons of “On-­‐premises” FaaS

21. Pros of “On-­‐premises” FaaS
clda.co/faas-­‐kubernetes
Kubernetes abstracOon for devs
Open-­‐source soluOon
Fewer non-­‐funcOonal limitaOons
More control over infrastructure
Might be cheaper overall
Might be faster (dedicated cluster)

22. Cons of “On-­‐premises” FaaS
clda.co/faas-­‐kubernetes
Many missing features
Versioning, staging, env. vars, Omeouts
TesOng, monitoring, logging
Responsibility & Ownership
Provisioning & configuraOon
UpOme & monitoring
Permissions & auth, orchestraOon
More naOve triggers (storage, db, streams) OperaOonal complexity

23. Addi;onal Resources
clda.co/faas-­‐kubernetes
cloudacademy.com/webinars/kubernetes-38
Webinar: Hands on Kubernetes (Part 1)
cloudacademy.com/webinars/kubernetes-41
Webinar: Ecosystem & ProducOon OperaOons (Kubernetes Part 2)
cloudacademy.com/webinars/docker-31
Webinar: Docker -­‐ From Dev to ProducOon
cloudacademy.com/webinars/docker-34
Webinar: Docker -­‐ ProducOon & Beyond
by Adam Hawkins
(@adman65)

24. Thank you!
2/23/2017 clda.co/faas-­‐kubernetes
Q & A