我正在通过PowerShell使用自定义映像创建Azure VM。自定义映像具有操作系统磁盘和数据磁盘配置。但在执行代码时，VM成功部署，但操作系统磁盘和数据磁盘配置不同。
如何编写PowerShell代码来创建操作系统磁盘和数据磁盘沿着自定义映像？
下面是代码：

#Define the required Parameters
$resourceGroup = "RG-Test2"
$location = "West US3"
$subnetConfig = "mySubnet"
$vnet = "MYvNET"
$vmName = "MyTestVM"
$galleryname = "mygallery"
$ImageDefinitionName = "windowsimage1"
# Install the AZ modules and Login to Azure 
Install-Module -Name Az -AllowClobber -Scope CurrentUser
Connect-AzAccount
#Get the Image details present in resource group
$imageDefinition = Get-AzGalleryImageDefinition `
   -GalleryName $galleryname `
   -ResourceGroupName $resourceGroup `
   -Name $ImageDefinitionName
# Create user credential object which would be used for Virtual machine
do {
    $cred = Get-Credential -Message "Enter a username and password for VM."
    $password = $cred.GetNetworkCredential().Password
    if ($password.Length -lt 8) {
        Write-Host "Password must be at least 8 characters long. Please try again."
    }
    else {
        # Password meets the minimum length requirement.
        # You can proceed with the credential ($cred) as needed.
        break
       }
} while ($true)
# Create an inbound network security group rule for port 3389
$nsgRuleSSH = New-AzNetworkSecurityRuleConfig `
              -Name myNetworkSecurityGroupRuleSSH  `
              -Protocol Tcp `
              -Direction Inbound `
              -Priority 1000 `
              -SourceAddressPrefix * `
              -SourcePortRange * `
              -DestinationAddressPrefix * `
              -DestinationPortRange 3389 `
              -Access Allow
# Create a network security group
$nsg = New-AzNetworkSecurityGroup `
       -ResourceGroupName $resourceGroup  `
       -Location $location `
       -Name myNetworkSecurityGroup `
       -SecurityRules $nsgRuleSSH
# Create a virtual network card and associate with public IP address and NSG
$nic = New-AzNetworkInterface `
         -Name myNic `
         -ResourceGroupName $resourceGroup `
         -Location $location `
         -SubnetId $vnet.Subnets[0].Id `
         -NetworkSecurityGroupId $nsg.Id
# Create a virtual machine configuration
$vmConfig = New-AzVMConfig `
   -VMName $vmName `
   -VMSize Standard_D2s_v3 | `
   Set-AzVMSecurityProfile -SecurityType "TrustedLaunch" | `
   Set-AzVMOperatingSystem -Windows -ComputerName $vmName -Credential $cred | `
   Set-AzVMSourceImage -Id $imageDefinition.Id | `
   Add-AzVMNetworkInterface -Id $nic.Id
# Create a virtual machine
$vm = New-AzVM `
   -ResourceGroupName $resourceGroup `
   -Location $location `
   -VM $vmConfig
# Check if the VM creation was successful
if ($vm) {
    Write-Host "VM '$($vmName)' has been created successfully."
} else {
    Write-Host "Failed to create the VM."
}

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