EUC

The other day I tweeted a short bit of code on how to automate the zeroing-out of your VDI images using SDelete:

Do you like to zero out your #VDI images using SDelete before snapshotting them for your pools?

Do you build your desktop images using @HashiCorp #Packer and would like to automate this? If so check out this code I threw together: https://t.co/14KYRIs4SD #EUC #vExpert

— Mark Brookfield (@virtualhobbit) June 16, 2020

I got quite a few DMs afterwards asking if it was possible to do the same with VMware’s OS Optimization Tool.

So without further ado, here’s the code I use as the last step in my Packer builds before closing them down for svMotioning:

	$ErrorActionPreference = "Stop"

	$webserver = "webserver.contoso.local"
	$url = "http://" + $webserver
	$files = @("VMwareOSOptimizationTool.exe","VMwareOSOptimizationTool.exe.config","my_osot.xml")
	$exe = $files[0]
	$arg = "-o -t " + $files[2]

	# Verify connectivity
	if (Test-Connection $webserver -Quiet){
	# Get the OSOT files
	ForEach ($file in $files)
	{
	Invoke-WebRequest -Uri ($url + "/" + $file) -OutFile $env:TEMP\$file
	}
	} else {
	throw "No connection to server. Aborting."
	}

	# Change to temp folder
	Set-Location $env:TEMP

	# Run OSOT
	Try
	{
	Start-Process $exe -ArgumentList $arg -Passthru -Wait -ErrorAction stop
	}
	Catch
	{
	Write-Error "Failed to run OSOT"
	Write-Error $_.Exception
	Exit -1
	}

	# Delete files
	ForEach ($file in $files)
	{
	Remove-Item -Path $env:TEMP\$file -Confirm:$false
	}