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Azure Functions Secretless Authentication

Azure Functions support managed identities for secretless authentication to Azure services and external providers.

Overview​

Azure Functions use managed identities to provide automatic authentication without storing credentials. This enables:

  • No Service Principal Keys: Automatic managed identity
  • Function-Level Identity: System or user-assigned identities
  • Temporary Credentials: Automatic token management
  • Azure Service Integration: Access Key Vault, Storage, etc.

Key Capabilities​

  • System-assigned and user-assigned managed identities
  • Azure AD authentication
  • Integration with Azure services
  • OIDC token generation for external services
  • RBAC-based access controls

Contributing​

This page is a placeholder. We need your help to create comprehensive documentation!

What we need:

  • Complete guide for Azure Functions managed identities
  • Function app configuration examples
  • System vs user-assigned identity setup
  • Azure service authentication patterns
  • External OIDC federation (AWS, GCP)
  • Role assignment and RBAC configuration
  • Troubleshooting authentication issues
  • Integration guides (e.g., functions-to-storage, functions-to-aws)

How to contribute:

Resources​