Lability

0.15.0

Src/Public/Remove-LabConfiguration.ps1

                                function Remove-LabConfiguration {

<#

    .SYNOPSIS

        Removes all VMs and associated snapshots of all nodes defined in a PowerShell DSC configuration document.

    .DESCRIPTION

        The Remove-LabConfiguration removes all virtual machines that have a corresponding NodeName defined in the

        AllNode array of the PowerShell DSC configuration document.

        WARNING: ALL EXISTING VIRTUAL MACHINE DATA WILL BE LOST WHEN VIRTUAL MACHINES ARE REMOVED.

        By default, associated virtual machine switches are not removed as they may be used by other virtual

        machines or lab configurations. If you wish to remove any virtual switche defined in the PowerShell DSC

        configuration document, specify the -RemoveSwitch parameter.

    .PARAMETER ConfigurationData

        Specifies a PowerShell DSC configuration data hashtable or a path to an existing PowerShell DSC .psd1

        configuration document used to remove existing virtual machines. One virtual machine is removed per node

        defined in the AllNodes array.

    .PARAMETER RemoveSwitch

        Specifies that any connected virtual switch should also be removed when the virtual machine is removed.

    .LINK

        about_ConfigurationData

        Start-LabConfiguration

#>

    [CmdletBinding(SupportsShouldProcess, ConfirmImpact = 'High')]

    param (

        ## Lab DSC configuration data

        [Parameter(Mandatory, ValueFromPipeline)]

        [System.Collections.Hashtable]

        [Microsoft.PowerShell.DesiredStateConfiguration.ArgumentToConfigurationDataTransformationAttribute()]

        $ConfigurationData,

        ## Include removal of virtual switch(es). By default virtual switches are not removed.

        [Parameter(ValueFromPipelineByPropertyName)]

        [System.Management.Automation.SwitchParameter] $RemoveSwitch

    )

    process {

        Write-Verbose -Message $localized.StartedLabConfiguration;

        $nodes = $ConfigurationData.AllNodes | Where-Object { $_.NodeName -ne '*' };

        $currentNodeCount = 0;

        foreach ($node in $nodes) {

            $currentNodeCount++;

            $nodeProperties = Resolve-NodePropertyValue -NodeName $node.NodeName -ConfigurationData $ConfigurationData;

            [System.Int16] $percentComplete = (($currentNodeCount / $nodes.Count) * 100) - 1;

            $activity = $localized.ConfiguringNode -f $nodeProperties.NodeDisplayName;

            Write-Progress -Id 42 -Activity $activity -PercentComplete $percentComplete;

            ##TODO: Should this not ensure that VMs are powered off

            $shouldProcessMessage = $localized.PerformingOperationOnTarget -f 'Remove-Lab', $nodeProperties.NodeDisplayName;

            $verboseProcessMessage = Get-FormattedMessage -Message ($localized.RemovingVM -f $nodeProperties.NodeDisplayName);

            if ($PSCmdlet.ShouldProcess($verboseProcessMessage, $shouldProcessMessage, $localized.ShouldProcessWarning)) {

                Remove-LabVirtualMachine -Name $node.NodeName -ConfigurationData $ConfigurationData -RemoveSwitch:$RemoveSwitch -Confirm:$false;

            }

        } #end foreach node

        Write-Progress -Id 42 -Activity $activity -Completed;

        Write-Verbose -Message $localized.FinishedLabConfiguration;

    } #end process

} #end function Remove-LabConfiguration

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