Talk from DevOpsDaysCPH about a pragmatic approach to adopting serverless. Link to session and abstract: https://www.devopsdays.org/events/2019-copenhagen/program/morten-christensen/

1. Pragmatic Adoption
of Serverless at
Umbraco HQ
Morten Christensen

2. Alternative session title
”How I sneaked Serverless into
production and got all of my colleagues to
love and start using it … ”

3. Alternative session title
”How I sneaked Serverless into
production and got all of my colleagues to
love and start using it … Except for the
Kubernetes fan in the office who is still
not convinced”

4. Take-aways
• Inspiration
• Possible use-cases
• Beyond Functions
• The Future is Serverless

5. Morten Christensen
Azure Hero @ Umbraco HQ
Azure MVP since 2014
Azure and .NET Usergroup
co-organizer
MicroCPH Conference
Intelligent Cloud Conference

6. Agenda
• What even is Serverless?
• Umbraco Cloud
• Our Journey
• Scenarios
• Future

7. What even is
Serverless ?

8. Common Overview
Abstraction
of Servers
Functions
Micro-
Billing

9. The big three
AWS Lambda Azure Functions Google Cloud
Functions

10. The big three – AWS Lambda launched in 2014
AWS Lambda Azure Functions Google Cloud
Functions

11. " The phrase “serverless” doesn’t mean servers are no
longer involved. It simply means that developers no longer
have to think that much about them. Computing
resources get used as services without having to manage
around physical capacities or limits. Service providers
increasingly take on the responsibility of managing
servers, data stores and other infrastructure resources.”
Ken Fromm, Why The Future Of Software And Apps Is Serverless, 15 Oct 2012

12. Mike Roberts
Wrote article on Serverless
Architectures on
martinfowler.com

13. Mike Roberts definition of Serverless
1. No management of server hosts or server processes

14. Mike Roberts definition of Serverless
1. No management of server hosts or server processes
2. Self auto-scale and auto-provision based on load

15. Mike Roberts definition of Serverless
1. No management of server hosts or server processes
2. Self auto-scale and auto-provision based on load
3. Costs based on precise usage

16. Mike Roberts definition of Serverless
1. No management of server hosts or server processes
2. Self auto-scale and auto-provision based on load
3. Costs based on precise usage
4. Performance capabilities defined in terms other
than host size/count

17. Mike Roberts definition of Serverless
1. No management of server hosts or server processes
2. Self auto-scale and auto-provision based on load
3. Costs based on precise usage
4. Performance capabilities defined in terms other
than host size/count
5. Implicit high availability

18. ● Storage
● Databases
● Messaging
● Security
● Amazon S3 / Azure Storage
● CosmosDB
● Amazon SQS / Azure Service Bus
● Auth0
Much more then just Functions

19. Spend your time on crafting
fantastic websites
Umbraco
Cloud

20. Umbraco
The Company

21. The Friendliest,
Editor-Centered
User interface
At Umbraco, we build software
that brings a smile on peoples faces

22. Umbraco CMS
as a Service
Public Cloud offering, which makes it easy to
get started with developing Umbraco based
websites.

23. Our Journey

24. Our Journey into Serverless
with Azure Functions
No Functions First Function
Wow!
This is great!

25. Functions as a Service

26. Functions as a Superglue

27. Where it’s
applied
• Infrastructure Orchestration
• Using APIs where Events are
not available
• Reporting
• Monitoring
• Alerting

28. What do we want to
achieve with Serverless

29. Fast to go from idea to deployed feature

30. Focus on delivering value to customers
rather then to maintain infrastructure

31. End GoalSitting on a
beach in Bali

32. Scenarios

33. Handling Unhealthy
Frontend Servers in Azure
Infrastructure components versus Azure Load Balancer

34. Application Request Routing
Webfarm Framework inside VNET
Frontends
Web Workers (IIS)
Azure
Load Balancer

35. Time Triggered
Azure Function
Infrastructure API
Health Status
Management API
Update Azure
Load BalancerUnhealthy

36. Handling Unavailable
Web Workers (IIS Servers)
When a Server is unavailable due to installation issues

38. Table Storage x3
Health Status
Service Bus
Queue
Health Check
Time Triggered
Azure Function
Infrastructure API
Health Status
Management API Restart VM
Service Bus Triggered
Azure Function

39. Slack integration for
Azure Health Alerts

40. Ref.: https://azure.microsoft.com/da-dk/status/

43. The Future

44. Headless CMS
• New Cloud Product
• With Azure Functions built-in
• Seemless to the User
• Event based

45. Future
use-cases
• Small APIs
• Image Service
• Self-service / ChatOps
• Serverless Databases
• Serverless vs Containers

47. Thank YouThank You