DSCResources/MSFT_xWaitForCluster/MSFT_xWaitForCluster.psm1
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# # xWaitForCluster: DSC Resource that will wait for given name of Cluster, it checks the state of the cluster for given # interval until the cluster is found or the number of retries is reached. # # # # The Get-TargetResource cmdlet. # function Get-TargetResource { [OutputType([Hashtable])] param ( [parameter(Mandatory)][string] $Name, [UInt64] $RetryIntervalSec = 10, [UInt32] $RetryCount = 50 ) @{ Name = $Name RetryIntervalSec = $RetryIntervalSec RetryCount = $RetryCount } } # # The Set-TargetResource cmdlet. # function Set-TargetResource { param ( [parameter(Mandatory)][string] $Name, [UInt64] $RetryIntervalSec = 10, [UInt32] $RetryCount = 50 ) $clusterFound = $false Write-Verbose -Message "Checking for cluster $Name ..." for ($count = 0; $count -lt $RetryCount; $count++) { try { $ComputerInfo = Get-WmiObject Win32_ComputerSystem if (($ComputerInfo -eq $null) -or ($ComputerInfo.Domain -eq $null)) { Write-Verbose -Message "Can't find machine's domain name" break; } $cluster = Get-Cluster -Name $Name -Domain $ComputerInfo.Domain if ($cluster -ne $null) { Write-Verbose -Message "Found cluster $Name" $clusterFound = $true break; } } catch { Write-Verbose -Message "Cluster $Name not found. Will retry again after $RetryIntervalSec sec" } Write-Verbose -Message "Cluster $Name not found. Will retry again after $RetryIntervalSec sec" Start-Sleep -Seconds $RetryIntervalSec } if (! $clusterFound) { throw "Cluster $Name not found after $count attempts with $RetryIntervalSec sec interval" } } # # The Test-TargetResource cmdlet. # function Test-TargetResource { [OutputType([Boolean])] param ( [parameter(Mandatory)][string] $Name, [UInt64] $RetryIntervalSec = 10, [UInt32] $RetryCount = 50 ) Write-Verbose -Message "Checking for Cluster $Name ..." try { $ComputerInfo = Get-WmiObject Win32_ComputerSystem if (($ComputerInfo -eq $null) -or ($ComputerInfo.Domain -eq $null)) { Write-Verbose -Message "Can't find machine's domain name" $false } $cluster = Get-Cluster -Name $Name -Domain $ComputerInfo.Domain if ($cluster -eq $null) { Write-Verbose -Message "Cluster $Name not found in domain $ComputerInfo.Domain" $false } else { Write-Verbose -Message "Found cluster $Name" $true } } catch { Write-Verbose -Message "Cluster $Name not found" $false } } |