Application Modernization with Microsoft Azure
Azure is the best option for your app modernization project, here is how to go about it.
By adopting a Cloud-native app modernization approach, organizations can re-architect existing applications or build new ones from the ground up to take full advantage of cloud platforms and services.
Example: Moving a legacy web application to Azure App Service while using Azure Functions for new, event-driven features.
This addresses various challenges by transforming old systems into more agile, scalable, and maintainable solutions.
The good thing is you don't have to necessarily completely replace your existing solutions, there are alternative strategies like:
Rehosting (Lift and Shift): Moving an application to a new environment, typically the cloud, without changing its underlying architecture.
Azure Options: Migrate on-premises servers (Windows/Linux) to Azure VMs, Move storage to Azure Blob storage or Azure File or Azure SQL Database which supports PaaS features like automatic patching, scaling, and backup. Extend your on-premises identity management and authentication with Azure AD.
Refactoring: Modify your existing application to improve its structure and performance without changing its core functionality.
Azure Options: Refactor your legacy apps to run on Azure App Service by breaking them into web apps, APIs, or mobile services. Break down your existing monolithic application into microservices and containerize these components using Azure Kubernetes Service.
Rebuilding: A complete rewrite of portions or modules of your application with cloud-native architecture such as event-driven architectures etc.
Azure Options: Rebuild portions of the application using Azure-native services like Azure App Services, Azure Functions, and Azure Logic Apps.
Other services that can transform your business process:
Azure Functions to build serverless webhooks and middleware logic
Azure Application Insights for Logging & monitoring
Azure CDN to cache static files e.g img, html,css
Azure Cache for Redis to store session states
Azure Key vault to manage secrets and keys
Azure Blob Storage for object storage
Azure Webjobs for background jobs.
Azure SQL for Relational Database
Azure Service Bus for messaging
Azure App Service for Web Apps
Azure Computer Vision for AI
Azure Devops for CI/CD
The entire process requires a consideration of technology & business needs. The choice of Azure service is largely dependent on the legacy application complexity, scalability & security requirement and of course costs.
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