DSCResources/DSC_ExchDatabaseAvailabilityGroupMember/DSC_ExchDatabaseAvailabilityGroupMember.psm1
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function Get-TargetResource { [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSDSCUseVerboseMessageInDSCResource", "")] [CmdletBinding()] [OutputType([System.Collections.Hashtable])] param ( [Parameter(Mandatory = $true)] [System.String] $MailboxServer, [Parameter(Mandatory = $true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [Parameter(Mandatory = $true)] [System.String] $DAGName, [Parameter()] [System.String] $DomainController, [Parameter()] [System.Boolean] $SkipDagValidation ) Write-FunctionEntry -Parameters @{ 'MailboxServer' = $MailboxServer 'DAGName' = $DAGName } -Verbose:$VerbosePreference # Establish remote PowerShell session Get-RemoteExchangeSession -Credential $Credential -CommandsToLoad 'Get-DatabaseAvailabilityGroup' -Verbose:$VerbosePreference # Setup params Add-ToPSBoundParametersFromHashtable -PSBoundParametersIn $PSBoundParameters -ParamsToAdd @{ 'Identity' = $PSBoundParameters['DAGName'] } Remove-FromPSBoundParametersUsingHashtable -PSBoundParametersIn $PSBoundParameters -ParamsToKeep 'Identity', 'DomainController' $dag = Get-DatabaseAvailabilityGroup @PSBoundParameters -Status -ErrorAction SilentlyContinue if ($null -ne $dag -and $null -ne $dag.Servers) { # See if this server is already in the DAG $server = $dag.Servers | Where-Object { $_.Name -eq "$($MailboxServer)" } if ($null -ne $server) { $returnValue = @{ MailboxServer = [System.String] $MailboxServer DAGName = [System.String] $dag.Name } } } $returnValue } function Set-TargetResource { [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSDSCUseVerboseMessageInDSCResource", "")] [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [System.String] $MailboxServer, [Parameter(Mandatory = $true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [Parameter(Mandatory = $true)] [System.String] $DAGName, [Parameter()] [System.String] $DomainController, [Parameter()] [System.Boolean] $SkipDagValidation ) Write-FunctionEntry -Parameters @{ 'MailboxServer' = $MailboxServer 'DAGName' = $DAGName } -Verbose:$VerbosePreference # Establish remote PowerShell session Get-RemoteExchangeSession -Credential $Credential -CommandsToLoad 'Add-DatabaseAvailabilityGroupServer' -Verbose:$VerbosePreference # Setup params Add-ToPSBoundParametersFromHashtable -PSBoundParametersIn $PSBoundParameters -ParamsToAdd @{ 'Identity' = $PSBoundParameters['DAGName'] } Remove-FromPSBoundParametersUsingHashtable -PSBoundParametersIn $PSBoundParameters -ParamsToRemove 'DAGName', 'Credential' $failoverClusteringRole = Get-WindowsFeature -Name Failover-Clustering -ErrorAction SilentlyContinue # Make sure the Failover-Clustering role is installed before trying to add the member to the DAG if ($null -eq $failoverClusteringRole -or !$failoverClusteringRole.Installed) { Write-Error -Message 'The Failover-Clustering role must be fully installed before the server can be added to the cluster.' return } # Force a reboot if the cluster is in an InstallPending state elseif ($failoverClusteringRole.InstallState -like 'InstallPending') { Write-Warning -Message 'A reboot is required to finish installing the Failover-Clustering role. This must occur before the server can be added to the DAG.' Set-DSCMachineStatus -NewDSCMachineStatus 1 return } Add-DatabaseAvailabilityGroupServer @PSBoundParameters } function Test-TargetResource { [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSDSCUseVerboseMessageInDSCResource", "")] [CmdletBinding()] [OutputType([System.Boolean])] param ( [Parameter(Mandatory = $true)] [System.String] $MailboxServer, [Parameter(Mandatory = $true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [Parameter(Mandatory = $true)] [System.String] $DAGName, [Parameter()] [System.String] $DomainController, [Parameter()] [System.Boolean] $SkipDagValidation ) Write-FunctionEntry -Parameters @{ 'MailboxServer' = $MailboxServer 'DAGName' = $DAGName } -Verbose:$VerbosePreference # Establish remote PowerShell session Get-RemoteExchangeSession -Credential $Credential -CommandsToLoad 'Get-DatabaseAvailabilityGroup' -Verbose:$VerbosePreference # Setup params Add-ToPSBoundParametersFromHashtable -PSBoundParametersIn $PSBoundParameters -ParamsToAdd @{ 'Identity' = $PSBoundParameters['DAGName'] } Remove-FromPSBoundParametersUsingHashtable -PSBoundParametersIn $PSBoundParameters -ParamsToKeep 'Identity', 'DomainController' $dag = Get-DatabaseAvailabilityGroup @PSBoundParameters -Status -ErrorAction SilentlyContinue $testResults = $true if ($null -eq $dag -or $dag.Name -notlike "$($DAGName)") { Write-Error -Message 'Unable to retrieve Database Availability Group settings' $testResults = $false } else { if ($null -eq ($dag.Servers | Where-Object { $_.Name -eq "$($MailboxServer)" })) { Write-Verbose -Message 'Server is not a member of the Database Availability Group' $testResults = $false } } return $testResults } Export-ModuleMember -Function *-TargetResource |