1. A Lap Around the .NET
Ecosystem and let's demystify
cloud-native development
with .NET
Cloud Solution Architect, App Dev
Microsoft APAC
@Kokkisajee
Sajeetharan Sinnathurai
www.Sajeetharan.com @kokkisajee sasinnat@Microsoft.com

2. Happy 10th anniversary .NET Conf!
Thank you for joining us!

3. Agenda
• .NET Ecosystem
• Recent announcements from DotNetConf
• Why cloud native?
• Why Microservices?
• Just a few of millions of .Net Customers
• Demo
• QnA
Today’s Discussion

4. .NET 5 General Availability
• Single file applications & smaller container images
• Web and cloud investments
• Windows desktop development enhancements
• Windows ARM64 support
• Continued performance improvements
• New C# 9.0, F# 5.0 language features
dot.net/get-dotnet5

6. .NET ecosystem momentum
Top 30
40%#1Top 5
#12M
insights.stackoverflow.com/survey/2019#most-loved-dreaded-and-wanted & insights.stackoverflow.com/survey/2020#most-loved-dreaded-and-wanted
github.com/cncf/velocity/
octoverse.github.com/
https://www.techempower.com/benchmarks/#section=data-r19&hw=ph&test=plaintext

7. .NET adoption
200K
Windows developers migrated to .NET Core
230K
First time .NET developers in September 2020
2 million
Publishes per month to Linux from Visual Studio
WinForms & WPF
on .NET Core
.NET Core
.NET on Linux
5 million
.NET developers
Monthly active developers in Visual Studio Family

8. .NET 5 performance improvements
 +30% socket performance improvement on Linux over .NET Core 3.1
 JSON serialization performance improved +19% over .NET Core 3.11
 Serialization of large collections & arrays improved 3x and are now zero-alloc
 gRPC server performance exceeds Go, C++ and Java2
1 All 104 JSON serialization benchmarks improved
2 https://github.com/LesnyRumcajs/grpc_bench/wiki/2020-08-11-bench-results
0
10000
20000
30000
40000
50000
60000
rust_tonic_mt dotnet_grpc go_grpc cpp_grpc_mt java_grpc
gRPC Server Performance Requests/Sec
(higher is better)

9. Windows desktop apps on .NET 5
• Complete development experience
• Windows Forms & WPF designers
• Visual Studio tooling
• Clickonce Installer support
• Third-party tools & controls
• All the benefits of .NET 5
• Self contained, single file EXEs
• No need for .NET Framework on machine
• Best performance
• Modern controls like WebView2

10. Xamarin.Forms 5
• Beautiful Design with Brushes, Shapes, and Paths
• Control templating for native controls
• Improved XAML experience in Visual Studio
• Hot Reload 2.0
• Develop iOS apps on Windows

11. Visual Studio 2019 16.8 GA and 16.9 Preview
• .NET 5.0 included
• .NET productivity enhancements
• Intellicode team completions
• New Git experience
• Linux debugging
• Improved XAML experience
• GitHub Actions in Visual Studio
visualstudio.com/download
aka.ms/vs-preview

12. Full stack .NET web apps with Blazor in .NET 5
• Supports Blazor Server & Blazor WebAssembly
• Blazor WebAssembly enhancements
• Now uses .NET 5 core framework libraries
• 3X faster than previous release
• Supports server-side prerendering & lazy loading dependencies
• Component virtualization
• CSS & JavaScript isolation
• New components
• Growing ecosystem of third-party
& OSS controls and tools

13. Cloud native investments
• Smaller, faster microservices
• Smaller container images
• Single file apps
• Top-level C# programs
• Project Tye tools
• Build, debug and deploy microservices quickly
• Cross-platform development with WSL and Linux
• High-performance reverse proxy (YARP)

14. .NET 5 on Azure App Service
• .NET 5 available today
• .NET releases available on Day 1 going forward
aka.ms/app-service-early-access

16. What is the definition of cloud native

17. What is Cloud Native App Development?
Deploy as microservices
Manage app with
DevOps processes &
tools
Package app code & dependencies
in Kubernetes containers
By 2020, 35% of production apps
will be cloud native
Source: IDC FutureScape: Worldwide Developer and DevOps
2019 Predictions, Oct 2018

18. Real-time
telemetry
SaaS
delivery
Modernize business
critical applications
Geo-distributed
applications
Common cloud native scenarios

20. Cloud-native is about…
Speed agility

21. Cloud native capabilities
six capabilities
The Cloud
Microservices
Modern Design
Containers
Automation
Backing Services

22. All about the cloud…
Designed for
the cloud
Developed in
the cloud
Deployed to
the cloud
Cloud from end-to-end

23. Embrace modern design principles
 Question
”modern”

24. Think 12-factor

25. Built as microservices
 Set of independent services
 Each targets a specific business capability

26. Microservice architecture

27. Deployed in containers
 Package application code, dependencies, and runtime
environment together into a unit of deployment
Host (physical machine/VM)
Container: Basket:2.0
Basket.API v2
Lib-L v4
Lib-M v2
Runtime v6
Container: Product:2.0
Product.API v2
Lib-L v5
Runtime v7
Container: Product:1.0
Product.API v1
Lib-L v3
Runtime v5
Guarantee
Consistency
Improve VM
Workload Density
Performant
Disposable
Embrace
Orchestration

28. Consumes backing services
Backing Services

29. Automate everything

30. Infrastructure as Code
Automate infrastructure

31. Automate code deployment
 Azure Pipelines

32. GitHub

33. Automate the environment
Scheduling
Provision
containers
Affinity/anti-affinity
Nearby or far apart
Health monitoring
Fix failures
Failover
Re-provision instances
Scaling
Add/remove instances
Networking
Container networking
Service discovery
Container discovery
Coordinated app upgrades
Rolling upgrades
orchestration

34. Manage Kubernetes
with ease
Build on an
enterprise-grade,
secure foundation
Run anything,
anywhere
Accelerate
containerized
development
Azure Kubernetes Service (AKS)
Ship faster, operate easily, and scale confidently with managed Kubernetes on Azure

35. Microservices: for faster app development
• Independent deployments
• Improved scale and resource
utilization per service
• Smaller, focused teams
Monolithic
APP APP APP
Microservices
Large, all-inclusive app Small, independent services

36. Demo : Deploy application to AKS

37. Project Tye in .NET 5
Build, debug and deploy microservices faster
Service discovery via configuration
conventions
Add dependencies (Redis, SQL
Server, etc.) without writing
docker files
Run and debug locally using
containers and Kubernetes
Local dashboard for metrics,
logging, debugging
Automatically dockerize and deploy
to Azure Kubernetes Service
Frontend
Service
Service
Service
Name Type Source Bindings
AKS
Dependency
Dependency
Dependency

38. Demo : Tye
Github : sajeetharan/dotnetconfsl-tye

39. Azure
Virtual
Machines
Azure App
Service
Azure Kubernetes
Service (AKS)
Azure SignalR
Service
Azure Functions
Azure is the best cloud for .NET
Azure
Cognitive
Services
Azure Storage
Azure SQL
Database
Azure Cosmos
DB
Azure App
Insights
And many
more…

40. Recommendations
Azure Virtual
Machines (VMs)
Azure App
Service
Azure Kubernetes
Service (AKS)
Azure
Functions
Azure
Batch
Azure Container
Instances (ACI)
Web apps
(Monolithic
architecture)
N-Tier apps
(Coarse-grain
services)
Cloud-Native
(Microservices
architecture)
Batch / Jobs
(Background
tasks)
Application
Architecture
Recommended Azure
event-driven
Recommended
Application’s
background tasks
Recommended
Large Batch scale
Recommended
Recommended
Recommended Possible
Recommended Large app portfolio
Recommended

42. Cloud native guidance
https://dotnet.microsoft.com/learn/dotnet/architecture-guides

43. dot.net/customers

44. Stack Overflow
completes their
migration to
.NET Core 3.1
Stack Overflow sees better
performance, faster development,
and containerization benefits with
.NET Core.

45.  .NET 5.0 released today!
 Major releases every year in November
 LTS for even numbered releases
 Predictable schedule, minor releases as needed
.NET Schedule
Nov 2020
.NET 5.0
Nov 2021
.NET 6.0
LTS
Nov 2022
.NET 7.0
Nov 2023
.NET 8.0
LTS
Nov 2024
.NET 9.0

46. Thank you!
Sajeetharan Sinnathurai,
Cloud Solution Architect(APAC OCP),
@kokkisajee
sasinnat@Microsoft.com