DSCResources/DSC_WaitForCluster/DSC_WaitForCluster.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 Get the values for which failover cluster and for how long to wait for the cluster to exist. .PARAMETER Name Name of the cluster to wait for. .PARAMETER RetryIntervalSec Interval to check for cluster existence. Default values is 10 seconds. .PARAMETER RetryCount Maximum number of retries to check for cluster existence. Default value is 50 retries. #> function Get-TargetResource { [OutputType([System.Collections.Hashtable])] param ( [Parameter(Mandatory = $true)] [System.String] $Name, [Parameter()] [System.UInt64] $RetryIntervalSec = 10, [Parameter()] [System.UInt32] $RetryCount = 50 ) Write-Verbose -Message $script:localizedData.ReturnParameterValues @{ Name = $Name RetryIntervalSec = $RetryIntervalSec RetryCount = $RetryCount } } <# .SYNOPSIS Waits for the specific failover cluster to exist. It will throw an error if the cluster has not been detected during the timeout period. .PARAMETER Name Name of the cluster to wait for. .PARAMETER RetryIntervalSec Interval to check for cluster existence. Default values is 10 seconds. .PARAMETER RetryCount Maximum number of retries to check for cluster existence. Default value is 50 retries. #> function Set-TargetResource { param ( [Parameter(Mandatory = $true)] [System.String] $Name, [Parameter()] [System.UInt64] $RetryIntervalSec = 10, [Parameter()] [System.UInt32] $RetryCount = 50 ) $clusterFound = $false Write-Verbose -Message ($script:localizedData.CheckClusterPresent -f $Name) for ($count = 0; $count -lt $RetryCount; $count++) { try { $computerObject = Get-CimInstance -ClassName Win32_ComputerSystem if ($null -eq $computerObject -or $null -eq $computerObject.Domain) { Write-Verbose -Message $script:localizedData.TargetNodeDomainMissing break } $cluster = Get-Cluster -Name $Name -Domain $computerObject.Domain if ($null -ne $cluster) { Write-Verbose -Message ($script:localizedData.ClusterPresent -f $Name) $clusterFound = $true break } } catch { Write-Verbose -Message ($script:localizedData.ClusterAbsent -f $Name, $RetryIntervalSec) } Write-Verbose -Message ($script:localizedData.ClusterAbsent -f $Name, $RetryIntervalSec) Start-Sleep -Seconds $RetryIntervalSec } if (-not $clusterFound) { $errorMessage = $script:localizedData.ClusterAbsentAfterTimeOut -f $Name, $count, $RetryIntervalSec New-InvalidOperationException -Message $errorMessage } } <# .SYNOPSIS Test if the specific failover cluster exist. .PARAMETER Name Name of the cluster to wait for. .PARAMETER RetryIntervalSec Interval to check for cluster existence. Default values is 10 seconds. .PARAMETER RetryCount Maximum number of retries to check for cluster existence. Default value is 50 retries. #> function Test-TargetResource { [OutputType([Boolean])] param ( [Parameter(Mandatory = $true)] [System.String] $Name, [Parameter()] [System.UInt64] $RetryIntervalSec = 10, [Parameter()] [System.UInt32] $RetryCount = 50 ) Write-Verbose -Message ($script:localizedData.EvaluatingClusterPresent -f $Name) $testTargetResourceReturnValue = $false try { $computerObject = Get-CimInstance -ClassName Win32_ComputerSystem if ($null -eq $computerObject -or $null -eq $computerObject.Domain) { Write-Verbose -Message $script:localizedData.TargetNodeDomainMissing } else { $cluster = Get-Cluster -Name $Name -Domain $computerObject.Domain if ($null -eq $cluster) { Write-Verbose -Message ($script:localizedData.ClusterAbsentWithDomain -f $Name, $computerObject.Domain) } else { Write-Verbose -Message ($script:localizedData.ClusterPresent -f $Name) $testTargetResourceReturnValue = $true } } } catch { Write-Verbose -Message ($script:localizedData.ClusterAbsentWithError -f $Name, $_.Message) } $testTargetResourceReturnValue } |