Disable-AzureRmVmssDiskEncryption fails if there is any other extension other than ‘AzureDiskEncryption’ extension on VMSS

[v-viban]

Cmdlet(s)

Disable-AzureRmVmssDiskEncryption

PowerShell Version

Instructions: to get PowerShell version, type $PSVersionTable and look for the value associated with PSVersion

PSVersion            - 5.1.16299.15

Module Version

OS Version

BuildVersion         - 10.0.16299.15  

Description

Disable-AzureRmVmssDiskEncryption fails if there is any other extension other than ‘AzureDiskEncryption’ extension on VMSS (Windows OS)

Debug Output

Instructions: to get Debug Output, set $DebugPreference="Continue" and then execute the cmdlet or script causing the issue
Also debug log file attached here.
DisableVMSSDELogs.txt

PS D:\>>> Disable-AzureRmVmssDiskEncryption -ResourceGroupName 'VMMSEnableDETestRG' -VMScaleSetName 'nt1vm' -Debug -Verbose *>&1 | foreach-object {$_.ToString()} | Out-File 'DisableDELogs.txt' 
Disable-AzureRmVmssDiskEncryption : Extension, AzureDiskEncryption,  is not installed in the VM Scale Set.
At line:1 char:1
+ Disable-AzureRmVmssDiskEncryption -ResourceGroupName 'VMMSEnableDETes ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidArgument: (:) [Disable-AzureRmVmssDiskEncryption], ArgumentException
    + FullyQualifiedErrorId : InvalidArgument,Microsoft.Azure.Commands.Compute.Extension.AzureDiskEncryption.RemoveAzureVmssDiskEncryptionCommand

Script/Steps for Reproduction

1. Deploy Windows Cluster to Azure
2. Enable VMSS Disk Encryiption using Set-AzureRmVmssDiskEncryptionExtension
3. Wait for completion
4. Verify if disk encryption enables for OS volume
5. Now to try disable disk encryption using Disable-AzureRmVmssDiskEncryption
   it says - Disable-AzureRmVmssDiskEncryption : Extension, AzureDiskEncryption, is not installed in the VM Scale Set.
   It seems it didn't work if there is any other extension other than ‘AzureDiskEncryption’ extension on VMSS.

[v-viban]

Please assign this to @hyonholee
Thanks

[cormacpayne]

@ejarvi Hey Eric, would you mind taking a look at this issue?

[ejarvi]

investigating