Undefined Description of problem:
In ASH arm template 06_workers.json[1], there is an unused variable "identityName" defined, this is harmless, but little weird to be present in official upi installation doc[2], which might confuse user when installing UPI cluster on ASH. [1] https://github.com/openshift/installer/blob/master/upi/azurestack/06_workers.json#L52 [2] https://docs.openshift.com/container-platform/4.17/installing/installing_azure_stack_hub/upi/installing-azure-stack-hub-user-infra.html#installation-arm-worker_installing-azure-stack-hub-user-infra suggest to remove it from arm template.
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