In the section "Enabling Azure boot diagnostics", the YAML provided is incorrect.    

The current docs say to add the following property to enable Azure Managed Diagnostics:

providerSpec:
  diagnostics:
    boot:
      storageAccountType: AzureManaged


However, the diagnostics property is nested within a `value` property, so the above YAML should instead be:

providerSpec:
  value:
    diagnostics:
      boot:
        storageAccountType: AzureManaged 


The same change is necessary for the unmanaged storage account instructions. 

Azure provider spec for reference: https://github.com/openshift/api/blob/1a7b90faeadfea580606b4d24ad6e290eaf0fefb/machine/v1beta1/types_azureprovider.go#L147 

4.12   

Attempt to enable boot diagnostics on an Azure cluster following the documented instructions

    1. Attempt to modify a MachineSet on an Azure cluster to enable diagnostics as documented (adding the diagnostics property directly to the providerSpec block instead of under "value")    

The change will not be accepted as it violates the machine/machineset spec

The change is applied and the machine/machineset will have boot diagnostics enabled