This environment variable enables Workload Identity for authenticating against the primary GCS bucket during DR recovery. It is always set to true and is hardcoded by Terraform when var.dr != "". Workload Identity allows the standby cluster to access the primary bucket across regions without requiring static credentials.

It is injected into the HumioCluster pod spec as an extraEnvVar and is preserved across both standby and active DR modes to prevent pod recreation during promotion.