In the past few years, the terms serverless computing and microservices has been thrown around a lot, and it seems lots of people that use them do not understand what they are, and more importantly, what they aren't. We'll try to provide some overview, along with a couple of definitions, a recap of the history, and speculation on the future - and of course, demo how Azure fits into the serverless story.

1. April 22
Servers?
We don't need no stinking servers!
Wekoslav Stefanovski
Sourcico Macedonia
@swekster

2. Agenda
• Living in a service oriented world
• Everything-as-a-Service
• Who moved my server?
• Azure and Serverless
• Azure Functions

3. > whoami
o Wekoslav Stefanovski
o Head of development at Sourcico
o Couple of decades of experience
o Co-founder of MKNUG (.net)
o Co-founder of NUGMK (Node.js)
o Loves to solve problems with technology

4. The world we live in
• Yesteryear
o Practical knowledge was limited
o You could do everything yourself
o You had to do a lot of it yourself
• Now
o I have no idea how to grow my food
o I have no idea how to fix my stuff
o I can outsource almost every need of mine
o I can focus on things that are fun / important to me
• The world is speeding up

5. Services, services, services
• What is a service?
• Who provides services?
• Software as a Service
o Reduced licensing hasstles
o No installation (means no administrators)
o Low maintenance costs
• Platform as a Service
• Infrastructure as a Service
o Infrastructure as Code

6. The arrow of time
Datacenter
Snowflakes
Virtual
machines in
the Cloud
Container
Deployment
Serverless
Functions
Months for deployment
Years in production
Minutes for deployment
Weeks in production
Seconds for deployment
Hours in production
Milliseconds for deployment
Seconds in production

7. From Server to Service
• Nothing new under the sun
o Very similar to existing infrastructures
o Layer of pixie dust
o Different way of looking at things
o Different responsibilities to different people

8. Why are Serverless Functions great?
o Really rapid development
o Really agile development
o Great integration with CI/CD pipelines
o Lower utilization costs
o Invisible scalability
o Enforces decoupling of functionalities
o Reduces Ops overhead

9. Why Serverless Functions suck?
o Short-lived by definition
o Vendor lock-in
o Overhead (a.k.a latency) for the call itself
o Multitenancy by default
o Cold Start slowdowns
o Invisible Reliability

10. Serverless Azure
• Azure Functions
• Simple piece of code
• Trivial to set up

11. DEMO

12. Serverless code quality
• How to test?
o Repository deployed code
o Functions that test functions
o Local execution environment
• Still searching for the answer

13. Questions / Discussion?

14. Upcoming events
SQLSaturday #519 in may!
http://www.sqlsaturday.com/519/

15. Thanks to our Sponsors:
Global Sponsor:
Platinum Sponsors:
Swag Sponsors: Media Partners:
With the support of: