public/Backup-CADatabase.ps1
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function Backup-CADatabase { <# .SYNOPSIS Backup certificate authority with or without the private key. .DESCRIPTION Creates a folder and backup the Active Directory Certificate Services database to the folder. .PARAMETER Path Backup path. .PARAMETER PrivateKey Backup private key. .EXAMPLE Backup-CADatabase -Path 'C:\Backup'; .EXAMPLE Backup-CADatabase -Path 'C:\Backup' -PrivateKey; #> [cmdletbinding()] [OutputType([pscustomobject])] param ( # Backup path. [Parameter(Mandatory = $false, ValueFromPipelineByPropertyName = $true)] [ValidateNotNullOrEmpty()] [ValidateScript({ $_ -match '^[a-zA-Z]:\\' })] [ValidateScript({ Test-Path $_ -PathType 'Container' -IsValid })] [string]$Path = $script:ModuleBackupFolder, # Private key backup. [Parameter(Mandatory = $false, ValueFromPipelineByPropertyName = $true)] [switch]$PrivateKey ) BEGIN { # Write to log. $customProgress = Write-CustomProgress -Activity $MyInvocation.MyCommand.Name -CurrentOperation 'Backup ADCS database'; # Get disk space. $disksSpace = Get-DiskSpace; # Get database size. $databaseSize = Get-CADatabaseSize; # Get drive letter. $driveLetter = $Path.Substring(0, 2); # Get disk space for drive. $diskSpace = $disksSpace | Where-Object { $_.DriveLetter -eq $driveLetter }; # If disk space is less than database size. if ($diskSpace.FreeSpace -lt $databaseSize.Total) { # Write to event log. Write-CustomEventLog -EventId 1 -AdditionalMessage ('Free space is {0} GB, required space is {1} GB' -f $diskSpace.FreeSpaceInGB, $databaseSize.TotalGb); # Throw exception. throw ('Not enough disk space, free space is {0} GB, required space is {1} GB' -f $diskSpace.FreeSpaceInGB, $databaseSize.TotalGb); } # Else the disk space is enough. else { # Write to log. Write-CustomLog -Message ('Disk space is enough, free space is {0} GB, required space is {1} GB' -f $diskSpace.FreeSpace, $databaseSize.TotalGb) -Level Verbose; } # If the path does not exist. if (-not (Test-Path $Path)) { # Create the path. $null = New-Item -Path $Path -ItemType 'Directory' -Force; } # Get the CertSvc service status. $serviceStatus = Get-CAService; # If the service is not running. if ($serviceStatus -ne 'Running') { # Write to event log. Write-CustomEventLog -EventId 2; # Throw exception. throw ('The CertSvc service is not running. The service must be running to backup the database'); } # Get the common name of the certificate authority. $commonName = Get-CACommonName; # Object to return. [pscustomobject]$result = [pscustomobject]@{ DatabasePath = ('{0}\DataBase' -f $Path); PrivateKeyPath = $null; }; } PROCESS { # If private key backup is requested. if ($true -eq $PrivateKey) { # Write to event log. Write-CustomEventLog -EventId 12; # Try to backup the private key. try { # Write to log. Write-CustomLog -Message ("Trying to backup the database with private key to the directory '{0}'" -f $Path) -Level Verbose; # Backup the database. Backup-CARoleService -Path $Path -KeepLog -Force -ErrorAction Stop; # Write to log. Write-CustomLog -Message ("Successfully made a backup of the database including the private key to the directory '{0}'" -f $Path) -Level Verbose; # Set private key path. $result.PrivateKeyPath = ('{0}\{1}.p12' -f $Path, $commonName); # Write to event log. Write-CustomEventLog -EventId 5; } # Something went wrong. catch { # Write to log. Write-CustomLog -Message ("Failed to backup the database including the private key to the directory '{0}'. Will try without the private key" -f $Path) -Level Warning; # Write to event log. Write-CustomEventLog -EventId 3; # Backup without private key. $null = Backup-CADatabase -Path $Path; } } # Else backup without private key. else { # Write to event log. Write-CustomEventLog -EventId 11; # Try to backup the database. try { # Write to log. Write-CustomLog -Message ("Trying to backup the database without the private key to the directory '{0}'" -f $Path) -Level Verbose; # Backup the database. Backup-CARoleService -Path $Path -DatabaseOnly -KeepLog -Force -ErrorAction Stop; # Write to log. Write-CustomLog -Message ("Successfully made a backup of the database without the private key to the directory '{0}'" -f $Path) -Level Verbose; # Write to event log. Write-CustomEventLog -EventId 6; } # Something went wrong. catch { # Write to event log. Write-CustomEventLog -EventId 4; # Throw exception. throw ('Failed to backup the database. {0}' -f $_.Exception.Message); } } } END { # Write to log. Write-CustomProgress @customProgress; # Return result. return $result; } } |