DSCResources/DSC_DnsServerSecondaryZone/DSC_DnsServerSecondaryZone.psm1
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$script:dscResourceCommonPath = Join-Path -Path $PSScriptRoot -ChildPath '..\..\Modules\DscResource.Common' $script:dnsServerDscCommonPath = Join-Path -Path $PSScriptRoot -ChildPath '..\..\Modules\DnsServerDsc.Common' Import-Module -Name $script:dscResourceCommonPath Import-Module -Name $script:dnsServerDscCommonPath $script:localizedData = Get-LocalizedData -DefaultUICulture 'en-US' function Get-TargetResource { [CmdletBinding()] [OutputType([System.Collections.Hashtable])] param ( [Parameter(Mandatory = $true)] [System.String] $Name, [Parameter(Mandatory = $true)] [String[]] $MasterServers ) #region Input Validation # Check for DnsServer module/role Assert-Module -ModuleName 'DnsServer' #endregion Write-Verbose -Message 'Getting DNS zone.' $dnsZone = Get-DnsServerZone -Name $Name -ErrorAction SilentlyContinue if ($dnsZone) { $Ensure = 'Present' } else { $Ensure = 'Absent' } @{ Name = $Name Ensure = $Ensure MasterServers = [string[]]$($dnsZone.MasterServers.IPAddressToString) Type = $dnsZone.ZoneType } } function Set-TargetResource { [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [System.String] $Name, [Parameter(Mandatory = $true)] [String[]] $MasterServers, [Parameter()] [ValidateSet("Present","Absent")] [System.String] $Ensure = 'Present' ) Write-Verbose -Message 'Setting DNS zone.' if ($PSBoundParameters.ContainsKey('Debug')) { $null = $PSBoundParameters.Remove('Debug') } Test-ResourceProperties @PSBoundParameters -Apply # Restart the DNS service Restart-Service DNS } function Test-TargetResource { [CmdletBinding()] [OutputType([System.Boolean])] param ( [Parameter(Mandatory = $true)] [System.String] $Name, [Parameter(Mandatory = $true)] [String[]] $MasterServers, [Parameter()] [ValidateSet("Present","Absent")] [System.String] $Ensure = 'Present' ) #region Input Validation # Check for DnsServer module/role Assert-Module -ModuleName 'DnsServer' #endregion Write-Verbose -Message 'Validating DNS zone.' if ($PSBoundParameters.ContainsKey('Debug')) { $null = $PSBoundParameters.Remove('Debug') } Test-ResourceProperties @PSBoundParameters } #region Helper Functions function Test-ResourceProperties { [CmdletBinding()] [OutputType([bool])] param ( [Parameter(Mandatory = $true)] [System.String] $Name, [Parameter(Mandatory = $true)] [String[]] $MasterServers, [Parameter()] [ValidateSet("Present","Absent")] [System.String] $Ensure = 'Present', [Parameter()] [Switch] $Apply ) $zoneMessage = $($script:localizedData.CheckingZoneMessage) -f $Name Write-Verbose -Message $zoneMessage $dnsZone = Get-DnsServerZone -Name $Name -ErrorAction SilentlyContinue # Found DNS Zone if ($dnsZone) { $testZoneMessage = $($script:localizedData.TestZoneMessage) -f 'present', $Ensure Write-Verbose -Message $testZoneMessage # If the zone should be present if ($Ensure -eq 'Present') { # Check if the zone is secondary $secondaryZoneMessage = $script:localizedData.CheckingSecondaryZoneMessage Write-Verbose -Message $secondaryZoneMessage # If the zone is already secondary zone if ($dnsZone.ZoneType -eq "Secondary") { $correctZoneMessage = $($script:localizedData.AlreadySecondaryZoneMessage) -f $Name Write-Verbose -Message $correctZoneMessage # Check the master server property $checkPropertyMessage = $($script:localizedData.CheckPropertyMessage) -f 'master servers' Write-Verbose -Message $checkPropertyMessage # Compare the master server property if ((-not $dnsZone.MasterServers) -or (Compare-Object $($dnsZone.MasterServers.IPAddressToString) $MasterServers)) { $notDesiredPropertyMessage = $($script:localizedData.NotDesiredPropertyMessage) -f ` 'master servers',$MasterServers,$dnsZone.MasterServers Write-Verbose -Message $notDesiredPropertyMessage if ($Apply) { Set-DnsServerSecondaryZone -Name $Name -MasterServers $MasterServers $setPropertyMessage = $($script:localizedData.SetPropertyMessage) -f 'master servers' Write-Verbose -Message $setPropertyMessage } else { return $false } } # end master server mismatch else { $desiredPropertyMessage = $($script:localizedData.DesiredPropertyMessage) -f 'master servers' Write-Verbose -Message $desiredPropertyMessage if (-not $Apply) { return $true } } # end master servers match } # end zone is already secondary # If the zone is not secondary, make it so else { $notCorrectZoneMessage = $($script:localizedData.NotSecondaryZoneMessage) -f $Name,$dnsZone.ZoneType Write-Verbose -Message $notCorrectZoneMessage # Convert the zone to Secondary zone if ($Apply) { ConvertTo-DnsServerSecondaryZone -Name $Name -MasterServers $MasterServers -ZoneFile $Name -Force $setZoneMessage = $($script:localizedData.SetSecondaryZoneMessage) -f $Name Write-Verbose -Message $setZoneMessage } else { return $false } } # end zone is not secondary }# end ensure -eq present # If zone should be absent else { if ($Apply) { $removingZoneMessage = $script:localizedData.RemovingZoneMessage Write-Verbose -Message $removingZoneMessage Remove-DnsServerZone -Name $Name -Force $deleteZoneMessage = $($script:localizedData.DeleteZoneMessage) -f $Name Write-Verbose -Message $deleteZoneMessage } else { return $false } } # end ensure -eq absent } # end found dns zone # Not found DNS Zone else { $testZoneMessage = $($script:localizedData.TestZoneMessage) -f 'absent', $Ensure Write-Verbose -Message $testZoneMessage if ($Ensure -eq 'Present') { if ($Apply) { $addingSecondaryZoneMessage = $script:localizedData.AddingSecondaryZoneMessage Write-Verbose -Message $addingSecondaryZoneMessage # Add the zone and start the transfer Add-DnsServerSecondaryZone -Name $Name -MasterServers $MasterServers -ZoneFile $Name Start-DnsServerZoneTransfer -Name $Name -FullTransfer $newSecondaryZoneMessage = $($script:localizedData.NewSecondaryZoneMessage) -f $Name Write-Verbose -Message $newSecondaryZoneMessage } else { return $false } } # end ensure -eq Present else { if (-not $Apply) { return $true } } # end ensure -eq Absent } } #endregion |