Create Enable-NestedHyperV.ps1

src/windows/Enable-NestedHyperV.ps1

@@ -0,0 +1,106 @@
+$scriptStartTime = get-date -f yyyyMMddHHmmss
+$scriptPath = split-path -path $MyInvocation.MyCommand.Path -parent
+$scriptName = (split-path -path $MyInvocation.MyCommand.Path -leaf).Split('.')[0]
+$logFile = "$env:PUBLIC\Desktop\$($scriptName).log"
+$scriptStartTime | out-file -FilePath $logFile -Append
+
+$nestedGuestVmName = 'ProblemVM'
+$batchFile = "$env:allusersprofile\Microsoft\Windows\Start Menu\Programs\StartUp\RunHyperVManagerAndVMConnect.cmd"
+$batchFileContents = @"
+start $env:windir\System32\mmc.exe $env:windir\System32\virtmgmt.msc
+start $env:windir\System32\vmconnect.exe localhost $nestedGuestVmName
+"@
+
+$features = get-windowsfeature -ErrorAction Stop
+$hyperv = $features | where Name -eq 'Hyper-V'
+$hypervTools = $features | where Name -eq 'Hyper-V-Tools'
+$hypervPowerShell = $features | where Name -eq 'Hyper-V-Powershell'
+$dhcp = $features | where Name -eq 'DHCP'
+$rsatDhcp = $features | where Name -eq 'RSAT-DHCP'
+
+if ($hyperv.Installed -and $hypervTools.Installed -and $hypervPowerShell.Installed)
+{
+    "START: Creating nested guest VM" | out-file -FilePath $logFile -Append
+    # Sets "Do not start Server Manager automatically at logon"
+    $return = New-ItemProperty -Path HKLM:\Software\Microsoft\ServerManager -Name DoNotOpenServerManagerAtLogon -PropertyType DWORD -Value 1 -force -ErrorAction SilentlyContinue
+    $return = New-ItemProperty -Path HKLM:\Software\Microsoft\ServerManager\Oobe -Name DoNotOpenInitialConfigurationTasksAtLogon -PropertyType DWORD -Value 1 -force -ErrorAction SilentlyContinue
+
+    try {
+
+        # Configure NAT so nested guest has external network connectivity
+        # See also https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/user-guide/nested-virtualization#networking-options
+        $switch = get-vmswitch -Name Internal -SwitchType Internal -ErrorAction SilentlyContinue | select -first 1
+        if (!$switch)
+        {
+            $switch = New-VMSwitch -Name Internal -SwitchType Internal -ErrorAction Stop
+        }
+        $adapter = Get-NetAdapter -Name 'vEthernet (Internal)' -ErrorAction Stop
+
+        $ip = get-netipaddress -IPAddress 192.168.0.1 -ErrorAction SilentlyContinue | select -first 1
+        if (!$ip)
+        {
+            $return = New-NetIPAddress -IPAddress 192.168.0.1 -PrefixLength 24 -InterfaceIndex $adapter.ifIndex -ErrorAction Stop
+        }
+
+        $nat = Get-NetNat -Name InternalNAT -ErrorAction SilentlyContinue | select -first 1
+        if (!$nat)
+        {
+            $return = New-NetNat -Name InternalNAT -InternalIPInterfaceAddressPrefix 192.168.0.0/24 -ErrorAction Stop
+        }
+
+        # Configure DHCP server service so nested guest can get an IP from DHCP and will use 168.63.129.16 for DNS and 192.168.0.1 as default gateway
+        if ($dhcp.Installed -eq $false -or $rsatDhcp.Installed -eq $false)
+        {
+            $return = Install-WindowsFeature -Name DHCP -IncludeManagementTools -ErrorAction Stop
+        }
+        $scope = Get-DhcpServerv4Scope -ErrorAction SilentlyContinue | where Name -eq Scope1 | select -first 1
+        if (!$scope)
+        {
+            $return = Add-DhcpServerV4Scope -Name Scope1 -StartRange 192.168.0.100 -EndRange 192.168.0.200 -SubnetMask 255.255.255.0 -ErrorAction Stop
+        }
+        $return = Set-DhcpServerv4OptionValue -DnsServer 168.63.129.16 -Router 192.168.0.1 -ErrorAction Stop
+
+        # Create the nested guest VM
+        $return = new-vm -name $nestedGuestVmName -MemoryStartupBytes 4GB -NoVHD -BootDevice IDE -Generation 1 -ErrorAction Stop
+        $return = set-vm -name $nestedGuestVmName -ProcessorCount 2 -CheckpointType Disabled -ErrorAction Stop
+        $disk = get-disk -ErrorAction Stop | where {$_.FriendlyName -eq 'Msft Virtual Disk'}
+        $return = $disk | set-disk -IsOffline $true -ErrorAction Stop
+        $return = $disk | Add-VMHardDiskDrive -VMName $nestedGuestVmName -ErrorAction Stop
+        $return = $switch | Connect-VMNetworkAdapter -VMName $nestedGuestVmName -ErrorAction Stop
+        $return = start-vm -Name $nestedGuestVmName -ErrorAction Stop
+        $nestedGuestVmState = (get-vm -Name $nestedGuestVmName -ErrorAction Stop).State
+
+        # Create a batch file in the all users startup folder so both Hyper-V Manager and VMConnect run automatically at logon.
+        $return = $batchFileContents | out-file -FilePath $batchFile -Force -Encoding Default
+        $return = copy-item -path "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Administrative Tools\Hyper-V Manager.lnk" -Destination "C:\Users\Public\Desktop"
+        # Suppress the prompt for "Do you want to allow your PC to be discoverable by other PCs and devices on this network"
+        $return = new-item -Path "HKLM:\SYSTEM\CurrentControlSet\Control\Network\NewNetworkWindowOff" -Force
+        "END: Creating nested guest VM" | out-file -FilePath $logFile -Append
+    }
+    catch {
+        throw $_
+        exit 1
+    }
+
+    # Returns the nested guest VM status to the calling script - "Running" if all went well.
+    $nestedGuestVmState
+}
+else
+{
+    "START: Installing Hyper-V" | out-file -FilePath $logFile -Append
+    try {
+        # Install Hyper-V role. The required restart is handled in the calling script, not this script, to make sure that this script cleanly returns the Hyper-V role install status to the calling script.
+        $return = install-windowsfeature -name Hyper-V -IncludeManagementTools -ErrorAction Stop
+    }
+    catch {
+        throw $_
+        exit 1
+    }
+    "END: Installing Hyper-V" | out-file -FilePath $logFile -Append
+    $return.ExitCode
+    write-host $return.ExitCode
+    return $return.ExitCode
+}
+
+$scriptEndTime = get-date -f yyyyMMddHHmmss
+$scriptEndTime | out-file -FilePath $logFile -Append