DSCResources/DSC_ClusterPreferredOwner/DSC_ClusterPreferredOwner.psm1
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$script:resourceHelperModulePath = Join-Path -Path $PSScriptRoot -ChildPath '..\..\Modules\DscResource.Common' Import-Module -Name $script:resourceHelperModulePath $script:localizedData = Get-LocalizedData -DefaultUICulture 'en-US' <# .SYNOPSIS Returns the current state of the failover cluster group and cluster resource preferred owners. .PARAMETER ClusterGroup Name of the cluster group. .PARAMETER ClusterName Name of the cluster. .PARAMETER Nodes The nodes to set as owners. .PARAMETER ClusterResources The resources to set preferred owners on. .PARAMETER Ensure If the preferred owners should be present or absent. Default value is 'Present'. #> function Get-TargetResource { [OutputType([System.Collections.Hashtable])] param ( [Parameter(Mandatory = $true)] [System.String] $ClusterGroup, [Parameter(Mandatory = $true)] [System.String] $ClusterName, [Parameter(Mandatory = $true)] [System.String[]] $Nodes, [Parameter()] [System.String[]] $ClusterResources, [Parameter()] [ValidateSet('Present', 'Absent')] [System.String] $Ensure = 'Present' ) Write-Verbose -Message ($script:localizedData.GetOwnerInformationForCluster -f $ClusterName) $ownerNodes = @( Write-Verbose -Message ($script:localizedData.GetOwnerInformationForClusterGroup -f $ClusterGroup) ((Get-ClusterGroup -Cluster $ClusterName | Where-Object -FilterScript { $_.Name -like $ClusterGroup } | Get-ClusterOwnerNode).OwnerNodes).Name if ($ClusterResources) { foreach ($resource in $ClusterResources) { Write-Verbose -Message ($script:localizedData.GetOwnerInformationForClusterResource -f $resource) ((Get-ClusterResource -Cluster $ClusterName | Where-Object -FilterScript { $_.Name -like $resource } | Get-ClusterOwnerNode).OwnerNodes).Name } } ) $ownerNodes = $ownerNodes | Select-Object -Unique @{ ClusterGroup = $ClusterGroup ClusterName = $ClusterName Nodes = $ownerNodes ClusterResources = $ClusterResources Ensure = $Ensure } } <# .SYNOPSIS Configures the desired preferred owners on the failover cluster group and cluster resource. .PARAMETER ClusterGroup Name of the cluster group. .PARAMETER ClusterName Name of the cluster. .PARAMETER Nodes The nodes to set as owners. .PARAMETER ClusterResources The resources to set preferred owners on. .PARAMETER Ensure If the preferred owners should be present or absent. Default value is 'Present'. #> function Set-TargetResource { param ( [Parameter(Mandatory = $true)] [System.String] $ClusterGroup, [Parameter(Mandatory = $true)] [System.String] $ClusterName, [Parameter(Mandatory = $true)] [System.String[]] $Nodes, [Parameter()] [System.String[]] $ClusterResources, [Parameter()] [ValidateSet('Present', 'Absent')] [System.String] $Ensure = 'Present' ) Write-Verbose -Message ($script:localizedData.GetAllNodesOfCluster -f $ClusterName) $allNodes = (Get-ClusterNode -Cluster $ClusterName).Name if ($Ensure -eq 'Present') { Write-Verbose -Message ($script:localizedData.SetOwnerForClusterGroup -f $ClusterGroup, $Nodes) $null = Get-ClusterGroup -Cluster $ClusterName | Where-Object -FilterScript { $_.Name -like $ClusterGroup } | Set-ClusterOwnerNode -Owners $Nodes $null = Get-ClusterResource | Where-Object { $_.OwnerGroup -like $ClusterGroup } | Set-ClusterOwnerNode -Owners $allNodes Write-Verbose -Message ($script:localizedData.MoveClusterGroup -f $ClusterGroup, $Nodes[0]) $null = Get-ClusterGroup -Cluster $ClusterName | Where-Object -FilterScript { $_.name -like $ClusterGroup } | Move-ClusterGroup -Node $Nodes[0] foreach ($resource in $ClusterResources) { Write-Verbose -Message ($script:localizedData.SetOwnerForClusterResource -f $resource, $Nodes) $null = Get-ClusterResource -Cluster $ClusterName | Where-Object -FilterScript { $_.Name -like $resource } | Set-ClusterOwnerNode -Owners $Nodes } } if ($Ensure -eq 'Absent') { Write-Verbose -Message ($script:localizedData.GetOwnerInformationForClusterGroup -f $ClusterGroup) $currentOwners = ((Get-ClusterGroup -Cluster $ClusterName | Where-Object -FilterScript { $_.Name -like $ClusterGroup } | Get-ClusterOwnerNode).OwnerNodes).Name | Sort-Object -Unique $newOwners = @( foreach ($currentOwner in $currentOwners) { if ($Nodes -notcontains $currentOwner) { $currentOwner } } ) Write-Verbose -Message ($script:localizedData.RemoveOwnerFromClusterGroup -f $ClusterGroup, $Nodes) $null = Get-ClusterGroup -Cluster $ClusterName | Where-Object -FilterScript { $_.Name -like $ClusterGroup } | Set-ClusterOwnerNode $newOwners Write-Verbose -Message ($script:localizedData.SetOwnerForClusterGroup -f $ClusterGroup, $newOwners) $null = Get-ClusterResource | Where-Object -FilterScript { $_.OwnerGroup -like $ClusterGroup } | Set-ClusterOwnerNode $allNodes Write-Verbose -Message ($script:localizedData.MoveClusterGroup -f $ClusterGroup, $newOwners[0]) $null = Get-ClusterGroup -Cluster $ClusterName | Where-Object -FilterScript { $_.Name -like $ClusterGroup } | Move-ClusterGroup -Node $newOwners[0] foreach ($resource in $ClusterResources) { Write-Verbose -Message ($script:localizedData.GetOwnerInformationForClusterResource -f $resource) $currentOwners = ((Get-ClusterResource -Cluster $ClusterName | Where-Object -FilterScript { $_.Name -like $resource } | Get-ClusterOwnerNode).OwnerNodes).Name | Sort-Object -Unique $newOwners = @( foreach ($currentOwner in $currentOwners) { if ($Nodes -notcontains $currentOwner) { $currentOwner } } ) Write-Verbose -Message ($script:localizedData.SetOwnerForClusterResource -f $resource, $newOwners) $null = Get-ClusterResource -Cluster $ClusterName | Where-Object -FilterScript { $_.Name -like $resource } | Set-ClusterOwnerNode -Owners $newOwners } } } <# .SYNOPSIS Tests so that the desired preferred owners on the failover cluster group and cluster resource are in desired state. .PARAMETER ClusterGroup Name of the cluster group. .PARAMETER ClusterName Name of the cluster. .PARAMETER Nodes The nodes to set as owners. .PARAMETER ClusterResources The resources to set preferred owners on. .PARAMETER Ensure If the preferred owners should be present or absent. Default value is 'Present'. #> function Test-TargetResource { [OutputType([System.Boolean])] param ( [Parameter(Mandatory = $true)] [System.String] $ClusterGroup, [Parameter(Mandatory = $true)] [System.String] $ClusterName, [Parameter(Mandatory = $true)] [System.String[]] $Nodes, [Parameter()] [System.String[]] $ClusterResources, [Parameter()] [ValidateSet('Present', 'Absent')] [System.String] $Ensure = 'Present' ) Write-Verbose -Message ($script:localizedData.TestOwnerInformationForCluster -f $ClusterName) $getTargetResourceResult = (Get-TargetResource @PSBoundParameters).Nodes $result = $true if ($Ensure -eq 'Present') { foreach ($object in $getTargetResourceResult) { if ($Nodes -notcontains $object) { Write-Verbose -Message ($script:localizedData.WasNotFoundAsPossibleOwner -f $object) $result = $false } } foreach ($object in $Nodes) { if ($getTargetResourceResult -notcontains $object) { Write-Verbose -Message ($script:localizedData.WasNotFoundAsPossibleOwner -f $object) $result = $false } } } if ($Ensure -eq 'Absent') { foreach ($object in $getTargetResourceResult) { if ($Nodes -contains $object) { Write-Verbose -Message ($script:localizedData.WasFoundAsPossibleOwner -f $object) $result = $false } } foreach ($object in $Nodes) { if ($getTargetResourceResult -contains $object) { Write-Verbose -Message ($script:localizedData.WasFoundAsPossibleOwner -f $object) $result = $false } } } $result } |