create-vnet-set-subnet-private-storage.ps1

$rgName = 'learn-rg'
$location = 'EastUS'
$vnetName = 'myVNet'
$vnetAddressPrefix = '10.0.0.0/16'
$subnetName = 'default'
$subnetAddressPrefix = '10.0.0.0/24'

# 
$rgParams = @{
    Name = $rgName
    Location = $location
}
$rg = New-AzResourceGroup @rgParams

# 
$vnetParams = @{
    Name = $vnetName
    ResourceGroupName = $rgParams.Name
    Location = $rgParams.Location
    AddressPrefix = $vnetAddressPrefix
}
$virtualNetwork = New-AzVirtualNetwork @vnetParams
if ($virtualNetwork -eq $null) {
    echo 'error creating VirtualNetwork';
    exit;
}

# 
$subnetConfigParams = @{
    Name = $subnetName
    VirtualNetwork = $virtualNetwork
    AddressPrefix = $subnetAddressPrefix
}
$subnetConfig = Add-AzVirtualNetworkSubnetConfig @subnetConfigParams
if ($subnetConfig -eq $null) {
    echo 'error adding VirtualNetworkSubnetConfig';
    exit;
}
$virtualNetwork = $virtualNetwork | Set-AzVirtualNetwork
if ($virtualNetwork -eq $null) {
    echo 'error updating VirtualNetwork with new subnet config';
    exit;
}

# 
$subnetConfigParams = @{
    Name = $subnetName
    AddressPrefix = $subnetAddressPrefix
    ServiceEndpoint = 'Microsoft.Storage'
}
$virtualNetwork = $virtualNetwork | Set-AzVirtualNetworkSubnetConfig @subnetConfigParams | Set-AzVirtualNetwork
if ($virtualNetwork -eq $null) {
    echo 'error updating VirtualNetwork with new subnet config';
    exit;
}