This document discusses app modernization and moving applications to the cloud. It notes that most IT budgets are spent on maintaining existing systems rather than new initiatives. App modernization can help by moving applications to containers, microservices, and serverless architectures. This allows lifting applications to the cloud which provides auto-scaling, redundancy, and frees up resources for innovation. The document outlines strategies like rehosting, refactoring, and rewriting applications using containers, Kubernetes, and serverless functions on Azure. This modernization journey provides agility, time to market, cost savings, and simplifies IT operations.

1. The path to the future…
#APPMODERNISATION #UGIDOTNET
Lorenzo Barbieri
Cloud Solutions Architect
@_geniodelmale
linkedin.com/in/geniodelmale

2. Never rewrite!
(Almost…)
• https://www.joelonsoftware.com/2000/04/06/things-you-should-never-do-part-i/
• https://medium.com/@herbcaudill/lessons-from-6-software-rewrite-stories-
635e4c8f7c22
• The history repeated some years later…

3. Balancing IT and business
of IT budgets are
dedicated towards
maintenance (“keeping
the lights on”)
72% Connect with
customers
and empower
employees
IT challenges Business needs

4. App
Modernization
to the rescue!

5. Web/API
or
?Desktop

6. WinForms UWPWPF Web Others
Current investments on Desktop Apps

7. Multiple Journeys to help evolve Desktop Apps

8. Multiple Journeys to help evolve Desktop Apps
Desktop Apps
Modernization:
MSIX, App Containers,
.NET Core 3, XAML Island,
Ink, Windows ML, etc…

9. Web/API

10. Application layers
Infrastructure
Data + Intelligence
Application

11. The journey to the (hybrid) cloud
DevOps
Deliver faster and more reliably
On-Premises
Application
Infrastructure
Data + Intelligence

12. (Hybrid) Cloud app continuum
Agility – Time to Market – Total Cost of Ownership – IT Simplification
EngineeringComplexityandCost
Existing on-
premises
applications
VMs
Rehost
Containers
&
App
Services
Refactor
Microservices
Rearchitect
Serverless
Rebuild
New
SaaS apps
Replace
App Modernization
Lift & Shift

13. Modernizing web apps with Azure
No consistent service level/uptime.
No scaling if unexpected traffic.
Reduced agility/lack of flexibility.
Monolithic applications, legacy code.
Lack of resources for new initiatives.
Limited technical support.
Challenges App Service benefits
Built-in no-configuration auto-
scaling, load balancing and failover.
CI/CD/DevOps out of the box.
Serverless options for all app
scenarios.
Frees IT to focus on innovation.
Use existing skills, tools & frameworks.

14. What is a container?
Virtualize the hardware
VMs as units of scaling
Virtual machines
App
Containers
Virtualize the operating system
Applications as units of scaling
Container
App

15. What are microservices?
Monolithic
APP APP APP
Microservices
Large, all-inclusive app Small, independent services
Decoupled
These service modules are highly decoupled building
blocks that are small enough to implement a single
functionality but together can form larger systems
A Software Architectural Style
Applications are composed of small, independent modules
that communicate with each other using well-defined APIs.
Not platform specific.
Independently versioned, deployed & scaled
With a microservices architecture, developers can create,
manage and improve application services independently,
even using different languages
Containers provide the consistent format and isolation
desired by microservices.

16. How can containers help your app modernization journey?
From traditional systems to a portfolio of modern apps
Continuous innovation with DevOps
46x more frequent for code delivery2
1: Datadog Report: 8 Surprising Facts About Real Docker Adoption; 2: 2017 state of DevOps Report
App
Container
App
Existing/New
Applications
Lift and shift to
containers
Each host often runs
8 containers
at a time1
Microservices
Seconds to
deploy, churns
12x faster1

17. Containers in Azure
Choice of developer tools and clients
Azure Container Registry Docker Hub
App Service
Deploy web apps
or APIs using
containers in a
PaaS environment
Service Fabric
Modernize .NET
applications to
microservices
using Windows
Server containers
Kubernetes Service Container Instance
Scale and orchestrate
Linux containers using
Kubernetes
Ecosystem
Bring your
Partner solutions
that run great on
Azure
Elastically burst
from your Azure
Kubernetes Service
(AKS) cluster

18. Azure Serverless

20. App Modernization continuum
Infrastructure
abstraction< Control Productivity >

21. THANKS!!!
#APPMODERNISATION #UGIDOTNET
Lorenzo Barbieri
Cloud Solutions Architect
@_geniodelmale
linkedin.com/in/geniodelmale