DSCResources/cVMSwitch/cVMSwitch.psm1
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function Get-TargetResource { [CmdletBinding()] [OutputType([System.Collections.Hashtable])] param ( [parameter(Mandatory)] [String]$Name, [parameter(Mandatory)] [ValidateSet("External","Internal","Private")] [String]$Type ) # Check if Hyper-V module is present for Hyper-V cmdlets if(!(Get-Module -ListAvailable -Name Hyper-V)) { Throw "Please ensure that Hyper-V role is installed with its PowerShell module" } $switch = Get-VMSwitch -Name $Name -SwitchType $Type -ErrorAction SilentlyContinue @{ Name = $switch.Name Type = $switch.SwitchType NetAdapterName = $( if($switch.NetAdapterInterfaceDescription){ (Get-NetAdapter -InterfaceDescription $switch.NetAdapterInterfaceDescription).Name}) AllowManagementOS = $switch.AllowManagementOS Ensure = if($switch){'Present'}else{'Absent'} Id = $switch.Id NetAdapterInterfaceDescription = $switch.NetAdapterInterfaceDescription EnableIov = $switch.IovEnabled MinimumBandwidthMode = $switch.BandwidthReservationMode } } function Set-TargetResource { [CmdletBinding()] param ( [parameter(Mandatory)] [String]$Name, [parameter(Mandatory)] [ValidateSet('External','Internal','Private')] [String]$Type, [Parameter()] [ValidateNotNullOrEmpty()] [String]$NetAdapterName, [Parameter()] [Boolean]$AllowManagementOS, [Parameter()] [Boolean]$EnableIov, [Parameter()] [ValidateSet('None', 'Default', 'Weight', 'Absolute')] [String] $MinimumBandwidthMode, [ValidateSet("Present","Absent")] [String]$Ensure = "Present" ) # Check if Hyper-V module is present for Hyper-V cmdlets if(!(Get-Module -ListAvailable -Name Hyper-V)) { Throw "Please ensure that Hyper-V role is installed with its PowerShell module" } if($Ensure -eq 'Present') { $switch = (Get-VMSwitch -Name $Name -SwitchType $Type -ErrorAction SilentlyContinue) # If switch is present and it is external type, that means it doesn't have right properties (TEST code ensures that) if($switch -and ($switch.SwitchType -eq 'External')) { Write-Verbose -Message "Checking switch $Name NetAdapterInterface ..." if((Get-NetAdapter -Name $NetAdapterName).InterfaceDescription -ne $switch.NetAdapterInterfaceDescription) { Write-Verbose -Message "Removing switch $Name and creating with right netadapter ..." $switch | Remove-VMSwitch -Force $parameters = @{} $parameters["Name"] = $Name $parameters["NetAdapterName"] = $NetAdapterName $parameters["MinimumBandwidthMode"] = $MinimumBandwidthMode if($PSBoundParameters.ContainsKey("AllowManagementOS")){$parameters["AllowManagementOS"]=$AllowManagementOS} $null = New-VMSwitch @parameters Write-Verbose -Message "Switch $Name has right netadapter $NetAdapterName" } else { Write-Verbose -Message "Switch $Name has right netadapter $NetAdapterName" } Write-Verbose -Message "Checking switch $Name AllowManagementOS ..." if($PSBoundParameters.ContainsKey("AllowManagementOS") -and ($switch.AllowManagementOS -ne $AllowManagementOS)) { Write-Verbose -Message "Switch $Name AllowManagementOS property is not correct" $switch | Set-VMSwitch -AllowManagementOS $AllowManagementOS Write-Verbose -Message "Switch $Name AllowManagementOS property is set to $AllowManagementOS" } else { Write-Verbose -Message "Switch $Name AllowManagementOS is correctly set" } } # If the switch is not present, create one else { Write-Verbose -Message "Switch $Name is not $Ensure." Write-Verbose -Message "Creating Switch ..." $parameters = @{} $parameters["Name"] = $Name if($NetAdapterName) { $parameters["NetAdapterName"] = $NetAdapterName $parameters["MinimumBandwidthMode"] = $MinimumBandwidthMode if($PSBoundParameters.ContainsKey("AllowManagementOS")) { $parameters["AllowManagementOS"] = $AllowManagementOS } } else { $parameters["SwitchType"] = $Type } $null = New-VMSwitch @parameters Write-Verbose -Message "Switch $Name is now $Ensure." } } # Ensure is set to "Absent", remove the switch else { Get-VMSwitch $Name -ErrorAction SilentlyContinue | Remove-VMSwitch -Force } } function Test-TargetResource { [CmdletBinding()] [OutputType([System.Boolean])] param ( [parameter(Mandatory)] [String]$Name, [parameter(Mandatory)] [ValidateSet('External','Internal','Private')] [String]$Type, [Parameter()] [ValidateNotNullOrEmpty()] [String]$NetAdapterName, [Parameter()] [Boolean]$AllowManagementOS, [Parameter()] [Boolean]$EnableIov, [Parameter()] [ValidateSet('None', 'Default', 'Weight', 'Absolute')] [String] $MinimumBandwidthMode, [ValidateSet("Present","Absent")] [String]$Ensure = "Present" ) #region input validation # Check if Hyper-V module is present for Hyper-V cmdlets if(!(Get-Module -ListAvailable -Name Hyper-V)) { Throw "Please ensure that Hyper-V role is installed with its PowerShell module" } If($Type -eq 'External' -and !($NetAdapterName)) { Throw "For external switch type, NetAdapterName must be specified" } If($Type -ne 'External' -and $NetAdapterName) { Throw "For Internal or Private switch type, NetAdapterName should not be specified" } #endregion try { # Check if switch exists Write-Verbose -Message "Checking if Switch $Name is $Ensure ..." $switch = Get-VMSwitch -Name $Name -SwitchType $Type -ErrorAction Stop # If switch exists if($switch) { Write-Verbose -Message "Switch $Name is Present" # If switch should be present, check the switch type if($Ensure -eq 'Present') { # If switch is the external type, check additional propeties if($switch.SwitchType -eq 'External') { Write-Verbose -Message "Checking if Switch $Name has correct NetAdapterInterface ..." if((Get-NetAdapter -Name $NetAdapterName -ErrorAction SilentlyContinue).InterfaceDescription -ne $switch.NetAdapterInterfaceDescription) { return $false } else { Write-Verbose -Message "Switch $Name has correct NetAdapterInterface" } if($PSBoundParameters.ContainsKey("AllowManagementOS")) { Write-Verbose -Message "Checking if Switch $Name has AllowManagementOS set correctly..." if(($switch.AllowManagementOS -ne $AllowManagementOS)) { return $false } else { Write-Verbose -Message "Switch $Name has AllowManagementOS set correctly" } } if ($EnableIov) { if ($switch.IovEnabled -ne $EnableIov) { return $false } } if ($MinimumBandwidthMode -ne $switch.BandwidthReservationMode) { return $false } return $true } else { return $true } } # If switch should be absent, but is there, return $false else { return $false } } } # If no switch was present catch [System.Management.Automation.ActionPreferenceStopException] { Write-Verbose -Message "Switch $Name is not Present" return ($Ensure -eq 'Absent') } } Export-ModuleMember -Function *-TargetResource |