From SDD Conf, London 2017: Modernizing .NET Apps with Docker. Moves an ASP.NET app to Docker, first by installing an MSI in a Dockerfile, then by using multi-stage builds to compile and package the app in Docker. Then splits out features into other containers, and finally deploys to Azure using Docker Enterprise Edition to manage the solution.

1. The Velvet Revolution
Modernizing .NET Apps with Docker
Elton Stoneman | Developer Advocate
@EltonStoneman | elton@docker.com

2. Today
• The Docker Platform
• ASP.NET Apps in Docker
• Modernizing Apps with Docker
• The Path to Production

3. Tomorrow
• Microservices
• DevOps
• Cloud
• .NET Core
• Nano Server
• Linux

4. GET
v0

5. GET
v1

6. GET
v2

7. GET
v3

8. GET
v4

9. Docker is a Platform

10. .NET Fx
ASP.NET
Web App
Server Core
IIS
> docker build

11. # escape=`
FROM microsoft/aspnet:windowsservercore
COPY MyApp-1.0.msi C:
RUN msiexec /i C:MyApp-1.0.msi /qn

12. # escape=`
FROM microsoft/windowsservercore
SHELL ["powershell", "-Command"]
RUN Add-WindowsFeature Web-server, `
NET-Framework-45-ASPNET, Web-Asp-Net45; `
Remove-Website -Name 'Default Web Site'
COPY ProductLaunchWeb /product-launch-web
RUN New-Website -Name 'product-launch' `
-PhysicalPath 'C:product-launch-web' -Port 80
EXPOSE 80
COPY bootstrap.ps1 /
ENTRYPOINT ./bootstrap.ps1

13. > docker push
hub.docker.com

15. > docker run

16. > docker run
.NET Fx
ASP.NET
Web App
Server Core
IISw3wp.exe

17. > docker run

18. Dockerizing ASP.NET

19. GET
• Consistency
– Build & distribute
– Run & monitor
– Scale & update
– Secure
v1

20. GET
• Foundation
– Fast, safe deployment
– Break up monoliths
– Adopt new technologies
– Change processes
v1

21. Modernizing Apps with Docker

22. Performance
Heavy usage
crashes app
Data Insight
Support ticket
for queries
UX
Full release
for UI change

23. Performance
Heavy usage
crashes app

24. Performance Feature Demo

25. GET
v2

26. GET
v2

27. Performance
Heavy usage
crashes app
Data Insight
Support ticket
for queries

28. Data Insight Feature Demo

29. GET
v3

30. GET
v3

31. Performance
Heavy usage
crashes app
Data Insight
Support ticket
for queries
UX
Full release
for UI change

32. UX Feature Demo

33. GET
v4

34. GET
v4

35. Performance
Heavy usage
crashes app
Data Insight
Support ticket
for queries
UX
Full release
for UI change

36. From
• ASP.NET WebForms app
• SQL Server database

37. To
• Event-driven architecture
• Self-service analytics
• Self-service content

38. With
• Agent-less builds
• Consistent dev & ops experience
• Automated update (and rollback)

39. The Path to Production

40. Manager Worker Worker
PS C:> docker …

41. Manager Worker Worker Worker
PS C:> docker …
:~$ docker …

42. Manager + UCP Worker + DTR Worker Worker

43. Production Demo

44. Takeaways
• Docker is a mature platform
• Dockerizing apps is easy
–It can be the goal
–Or the start of a modernization program

45. • Docker Labs | dockr.ly/labs
• Image2Docker | dockr.ly/i2d-win
• DockerCon EU | October, Copenhagen
• @EltonStoneman
What Next?

46. THANK YOU