POWERSHELL: Turn off client ip masking for all application insights resources

DisableClientIpMaskingForAppInsights.ps1

Clear-Host

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Author: Tim Cartwright
Purpose to turn off client ip masking for all application insights resources if masking is enabled

DisableIPMasking:
  - true: disable masking client ips with 0.0.0.0 and show the real client ip
  - false: masks all client ips with 0.0.0.0

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if (-not (Get-AzContext)) {
    Update-AzConfig -EnableLoginByWam $false

    Connect-AzAccount 
}
<#
IF YOU RECIEVE THIS ERROR, IT MEANS THAT THE WORKSPACE FOR THE RESOURCE IS MESSED UP. THERE SHOULD BE A WARNING AT THE TOP OF THE OVERVIEW ON THE RESOURCE:
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New-AzApplicationInsights_CreateExpanded : Could not retrieve the Log Analytics workspace from ARM: /subscriptions/3f1b1b08-5eb5-4120-830c-de5b1d33f9a5/resourceGroups/Silvervine/providers/Microsoft.OperationalInsights/workspaces/PTS-WEB-STAGING
At C:\Program Files\WindowsPowerShell\Modules\Az.ApplicationInsights\2.2.5\ApplicationInsights.Autorest\custom\New-AzApplicationInsights.ps1:234 char:9
+         . Az.ApplicationInsights.internal\New-AzApplicationInsights @ ...
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: ({ ResourceGroup...fab0000\""
} }:<>f__AnonymousType0`4) [New-AzApplicationInsights_CreateExpanded], Exception
    + FullyQualifiedErrorId : BadRequest,Microsoft.Azure.PowerShell.Cmdlets.ApplicationInsights.Cmdlets.NewAzApplicationInsights_CreateExpanded

SOLUTION: You must go into the resource and using the warning message at the top, configure the right workspace. Using the properties does not seem to fix it.
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#>

$resources = Get-AzApplicationInsights

foreach ($resource in $resources) {
    if (-not ($resource.DisableIPMasking)) {
        Write-Output "Updating resource: $($resource.Name)"
        Update-AzApplicationInsights -Name $resource.Name -ResourceGroupName $resource.ResourceGroupName -DisableIPMasking:$true | Select-Object ApplicationId, DisableIPMasking
    }
}

Write-Output "Done"