AZ-400: Secretless Authentication! ?
Goal: Authenticate a pipeline to Azure without using Service Principals or stored secrets.
The Solution: Managed Identity ?
- The Choice: Use a System-Assigned Managed Identity.
- How it Works: Ties the identity directly to the Azure resource's lifecycle (e.g., the build agent).
- The Benefit: Eliminates the need to store, rotate, or manage secrets—Azure handles authentication automatically.
Why not others?
- PAT: User-scoped and still requires secret management.
- Hard-coded: A critical security anti-pattern; never put credentials in code.
- GitHub App Token: Intended for GitHub integrations, not Azure resource access.
Exam Tip: 'No secrets' + 'Azure to Azure' = Managed Identity. ?
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