Serverless web application in Azure with a load balancer

Creating an serverless web application in Azure with a load balancer involves several components. Here’s a step-by-step description of the architecture, followed by a diagram outline:

Architecture Diagram Outline

1. Client Side: User interacts via web browser or client application.
2. Azure Front Door: Distributes traffic across multiple Azure regions. Provides SSL termination and WAF (Web Application Firewall) capabilities.
3. Azure API Management: Provides a unified endpoint for the backend Azure Functions. Handles API versioning, rate limiting, and security.
4. Azure Functions: Serverless compute service to run backend logic. Integrates with various Azure services.
5. Azure Storage:

- Blob Storage: Stores static files (HTML, CSS, JS, images).

- Table/Queue Storage: Manages application state and tasks.

6. Azure Cosmos DB / Azure SQL Database: Stores application data. Provides scalability and global distribution.

7. Azure Application Insights: Monitors application performance. Provides diagnostic and analytics capabilities.

Key Points:

• Azure Front Door ensures global traffic management, SSL termination, and WAF.
• Azure API Management serves as a gateway to manage APIs.
• Azure Functions execute the serverless backend logic, interacting with various storage and database services.
• Azure Storage (Blob, Table, Queue) handles static content and application state management.
• Azure Cosmos DB / Azure SQL Database provide robust data storage solutions.
• Azure Application Insights offers performance monitoring and diagnostics.

This architecture ensures scalability, high availability, and efficient resource management, leveraging Azure’s serverless and managed services.

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Thanks

Nishant