Isha Lamboo created NIFI-9728:
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Summary: Add support for user-assigned managed identity to
ADLSCredentialsControllerService
Key: NIFI-9728
URL: https://issues.apache.org/jira/browse/NIFI-9728
Project: Apache NiFi
Issue Type: Improvement
Reporter: Isha Lamboo
The ADLSCredentialsControllerService has support the Azure (system-assigned)
managed identity, obtaining access tokens from the local Azure Instance
Metadata service endpoint.
Azure also supports user-assigned Managed Identities that are available through
the same Metadata endpoint by specifying the correct ClientID.
Currently if more than one Managed Identity is available, the Controller
appears to obtain a token from one of them at random(?).
The improvement would be to add a new property "Managed Identity ClientID" and
if not empty, make the ADLSCredentialsControllerService obtain a token for that
specific identity.
If the NIFI-8278 is implemented, a new Authentication Type of "User-assigned
Managed Identity" can control whether to use the ClientID property or obtain
the system-assigned Managed Identity.
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