AzureAssess

0.1.24

Storage/Join-AzureAssessStoragesPrivateEndpoints.ps1

                                <#

.SYNOPSIS

    Update storage acciybts collected with known private endpoints to determine if they are accessible from the internet

    When public internet access is neither enabled nor disabled ( PublicNetworkAccess = $null ), the web app will determine access in function of the presence of private endpoints

.EXAMPLE

    PS C:\Join-AzureAssessStoragesPrivateEndpoints

#>

function Join-AzureAssessStoragesPrivateEndpoints() {

    # TODO: put all file definition in main script

    # load web apps csv

    $storagescsv = Join-Path -Path "." -ChildPath "storages.csv" 

    $storages = get-content -Path $storagescsv | ConvertFrom-Csv

    # load private endpoints csv

    $privateendpointscsv = Join-Path -Path "." -ChildPath "privateendpoints.csv" 

    $privateendpoints = get-content -Path $privateendpointscsv | ConvertFrom-Csv

    # create a list with private endpoints targeted services (service subscription/resoucegroup/type/name)

    $privateendpointsservices = @()

    foreach($privateendpoint in $privateendpoints) {

        $privateendpointsservices += "/subscriptions/$($privateendpoint.ServiceSubscriptionId)/resourceGroups/$($privateendpoint.ServiceResourceGroupName)/$($privateendpoint.ServiceProvider)/$($privateendpoint.ServiceName)"

    }

    # updqte webapps PublicNetworkAccess property:

    # storage accounts public network access needs to be explicitly enabled/disabled

    # https://learn.microsoft.com/en-us/azure/storage/common/storage-network-security?tabs=azure-portal#about-virtual-network-endpoints

    # null would be default to allow public access

    foreach($storage in $storages) {

        if ([string]::IsNullOrWhiteSpace($storage.PublicNetworkAccess)) {

            $storage.PublicNetworkAccess = $true

        }

        if ($privateendpointsservices -contains "$($storage.ResourceGroupId)/$($storage.Type)/$($storage.Name)") {       

            $storage.HasPrivateEndpoint = $true

        } else {

            $storage.HasPrivateEndpoint = $false

        }

    }

    # export updated webapps to csv

    $storages | Export-Csv -Path $storagescsv -NoTypeInformation

}

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