Intro to Serverless & FaaS and its new emerging practices. Video: https://youtu.be/4opfl4wEdXA

1. The Rise of
Serverless Architectures
Photo by Shane Perry
Icon by Serverless

2. http://imgur.com/gallery/gxvJQNq

3. I am Benny Bauer
Ex-
Cloud Architect & Serverless Enthusiast
Find me at @benikbauer
Hello!

4. “
Devise technical solutions
for business needs.
Business
Technical
Solution
Architect’s Role

5. Our Needs
Technology

6. Hype & disregard spectrum
Diagram from wardleymaps.com
Image created by https://dev.to/rly

7. EvolutionGenesis Custom Built Product (+ rental) Commodity (+ utility)
Cloud evolution as an example
Data center
Hosting
Virtualization IaaS
Icons made by freepik from www.flaticon.com & unlimicon from Noun Project
On
Premise
Compute
Platform PaaS Serverless

8. What is Serverless
FaaS BaaS B2D SaaS

9. What is FaaS
Fully-managed
compute
Provisioning,
patching, scaling,
monitoring, logging
are provided
out-of-the- box
Deploy your code
Just package and
upload the code
Pay for actual usage
Getting charged only
upon code execution,
per 100ms
==> 100% utilization

10. How it works
Deploy your
code
Define
triggers
Code
executes &
auto-scales
❏ HTTP request
❏ Storage
❏ DB
❏ Schedule
❏ Messaging
❏ Monitoring
❏ Build
❏ More...

11. ◉ REST API
◉ Bots
◉ File processing & Data ingestion
◉ Incidents handling (Monitoring events)
◉ IoT
◉ Operations, monitoring, CI, health checks,
tests, scheduled jobs
◉ and more...
Use cases

12. Example: Bot

13. Example: Bot
Bot icon made by Arsenty from Noun Project
DBAPI
Gateway
FaaS A
Storage
notification file
uploaded
event
/cover?t=hype
FaaS B

14. Things to be aware of
Stateless
Instances are ephemeral.
Store state on client-side,
cache or db.
Cold start
Latency (< 2 sec) when
container is cold (upon first
run or inactivity).
Vendor lock-in
Integrations with other
services are the real bait.
Granularity
Unit of deployment is
nanoservice/function.
Costs
Not cost-effective from a
certain threshold.
Limitations
Execution time is 5 min.
Concurrent instances,
payload, disk are limited.

15. Ecosystem
Frameworks & Tools

16. Frameworks
Chalise

17. Tools

18. The FaaS effect
New emerging practices
Photo by TimOve (https://flic.kr/p/4aTMMx)

19. Business model
◉ Worth Based Development (“FinDev”)
https://hackernoon.com/why-the-fuss-about-serverless-4370b1596da0#.yct5knd7h by Simon Wardley

20. Business model
◉ API Marketplace

21. Architecture
◉ More distributed and pluggable
◉ More event-driven
◉ Frameworks are changing

22. Operations
DevOps is changing
◉ Less about provisioning, capacity planning
◉ More about distributed systems:
○ Monitoring & visibility
○ Debuggability
○ Graceful degradation & Resiliency
○ CI/CD
○ Costs optimisations

23. Summary
What was it all about?

24. Takeaways
◉ FaaS is the latest evolution of cloud
◉ New emerging practices
◉ How can Serverless help deliver my business
needs?

25. Any questions?
Thanks!
Slides template by SlidesCarnival
You can find me at
◉ @benikbauer
◉ bennybauer@gmail.com