Configuration for On-Behalf-Of authentication via AzureSettings

[kostrse]

On-Behalf-Of feature currently controlled by the adxOnBehalfOf feature toggle.

Since we are on the path for stabilization of the On-Behalf-Of feature and standard feature flags are not accessible from backend of external datasources, the proposal is to introduce a permanent option switch in the azsettings.AzureSettings structure.

OBO switch can be added into [azure] configuration section (here):

[azure]
managed_identity_enabled = true

# Enable/disable On-Behalf-Of authentication using AAD client configured in a datasource
client_obo_enabled = false

This configuration section parsed here into azsettings.AzureSettings structure.

We will need to extend the azsettings.AzureSettings in github.com/grafana/grafana-azure-sdk-go/azsettings/settings.go with additional boolean fiend and then update the github.com/grafana/grafana-azure-sdk-go package in Grafana.

Related discussion: #359 (comment)

[kostrse]

PR in Grafana Azure SDK:

• Configuration switch for On-Behalf-Of authentication grafana-azure-sdk-go#9

[asimpson]

Sorry for the delay @kostrse! I went ahead and approved

• Configuration switch for On-Behalf-Of authentication grafana-azure-sdk-go#9