Two Access Models
Azure Key Vault supports:
Access policies provide very granular control but are harder to scale. Azure RBAC provides centralized management and is preferred for larger environments.
Using Access Policies
Access policies define:
There is a limit of 1,024 access policies per vault, so assigning policies to groups is strongly recommended.
Using Azure RBAC with Key Vault
When RBAC is enabled:
Microsoft recommends using one Key Vault per application per environment.