function Get-MicroserviceNewRelicMapping {
<#
.SYNOPSIS
    Determine which microservices should report to New Relic. Utilized by Classify-Packages.

.PARAMETER BuildCheckoutDirectory
    Directory where the code is checked out by TC.

.PARAMETER PackageMetadata
    Packages object to populate.
#>

    [CmdletBinding()]
    param(
        $BuildCheckoutDirectory,
        [PSObject]$PackageMetadata
    )
    # For each of the microservice packages, figure out if they will have new relic enabled or disabled.
    # Build out the config checkout directory.
    $configCheckoutDirectory = (Join-Path $BuildCheckoutDirectory "config-defaults")

    if($PackageMetadata.DisableMicroserviceNewRelic) {
        Write-Host "Now determining which microservices need New Relic Enabled/Disabled"

        # Read in the package names to leave new-relic enabled for.
        $newRelicServicePath = (Join-Path $configCheckoutDirectory "NewRelicMicroServices/NewRelicMicroServices.txt")
        if(Test-Path $newRelicServicePath) {
            $newRelicMicroservicesToLeaveEnabled = [array](Get-Content -Path $newRelicServicePath)
        } else {
            Write-Warning "Could not find NewRelicMicroServices.txt to leave new relic enabled. Assuming no microservices should have NewRelic enabled."
            $newRelicMicroservicesToLeaveEnabled = $null;
        }
        foreach($package in $PackageMetadata.AppPackagesToInstall) {
            if($package.IsMicroservice) {
                $enableNewRelic = ($newRelicMicroservicesToLeaveEnabled -contains $package.Name)
                Add-Member -InputObject $package -NotePropertyName "EnableNewRelic" -NotePropertyValue $enableNewRelic -Force
            }
        }
    } else {
        Write-Host "New Relic will be left enabled on microservices."
    }
    return $PackageMetadata
}