Azure Event Grid

Overview

Azure Event Grid is a fully managed event routing service that enables the creation of event-driven architectures. It routes events from various sources to different destinations in near real-time, ensuring that your applications can react to events as they happen.

Core Functionality

Event Sources

• Azure Services: Such as Azure Blob Storage, Azure Functions, and Azure Resource Manager.
• Custom Sources: Applications can publish custom events to Event Grid.

Event Handlers

• Azure Services: Such as Azure Functions, Logic Apps, and Azure Automation.
• Custom Handlers: Any webhook-based application that can process events.

Event Routing

• Filters: Define criteria to route events to specific handlers based on event type or data.
• Retry Policies: Ensure reliable delivery of events with configurable retry logic.

Security and Compliance

• Role-Based Access Control (RBAC): Manage access to event subscriptions.
• Managed Identities: Securely authenticate to Azure services without managing credentials.

Well-Architected Framework Considerations

Cost Optimization

Azure Event Grid charges only for the events consumed, making it a cost-effective solution. Serverless services like Azure Functions and Logic Apps further reduce operational costs.

Operational Excellence

Built-in monitoring and diagnostics allow tracking event delivery and troubleshooting efficiently, ensuring smooth operations and quick issue resolution.

Performance Efficiency

Ensures low-latency event delivery, enabling near real-time processing of events, which improves overall system performance.

Reliability

Guarantees at-least-once delivery of events and supports retry policies to handle transient failures, ensuring no event loss.

Security

Supports RBAC and managed identities for secure access to event sources and handlers, ensuring a secure environment.

References

• Azure Event Grid documentation
• Azure Event Grid Event Handlers
• Azure Event Grid Security and Authorization