tests/Test-HostIISLogFiles.ps1
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function Test-HostIISLogFiles { [CmdletBinding()] param ( [parameter()][string] $TestName = "Test-HostIISLogFiles", [parameter()][string] $TestGroup = "configuration", [parameter()][string] $Description = "Validate IIS Log File retention", [parameter()][hashtable] $ScriptParams ) try { [int]$MaxDaysOld = Get-CmHealthDefaultValue -KeySet "iis:LogFilesMaxDaysOld" -DataSet $CmHealthConfig [int]$MaxSpacePct = Get-CmHealthDefaultValue -KeySet "iis:LogFilesMaxSpacePercent" -DataSet $CmHealthConfig Write-Verbose "MaxDaysOld = $MaxDaysOld" Write-Verbose "MaxSpacePct = $MaxSpacePct" $stat = "PASS" $msg = "No issues found" [System.Collections.Generic.List[PSObject]]$tempdata = @() # for detailed test output to return if needed if (!(Get-Module WebAdministration -ListAvailable)) { throw "WebAdministration module not installed. Please install RSAT" } Import-Module WebAdministration $LogsBase = $(Get-Item 'IIS:\Sites\Default Web Site').logfile.directory -replace '%SystemDrive%', "$($env:SYSTEMDRIVE)" #$LogsBase = $(Get-ItemProperty -Path 'IIS:\Sites\Default Web Site').logFile.directory -replace '%SystemDrive%', 'C:' $IISLogsPath = Join-Path $LogsBase -ChildPath "W3SVC1" $logs = Get-ChildItem -Path $IISLogsPath -Filter "*.log" $numlogs = $logs.Count Write-Verbose "$numlogs log files were found" $tsize = 0 $logs | Select-Object -ExpandProperty Length | Foreach-Object { $tsize += $_ } $OldLogs = @($logs | Where-Object { $_.LastWriteTime -lt (Get-Date).AddDays(-$MaxDaysOld) }) $TotalSpaceMB = [math]::Round($tsize / 1MB, 2) if ($OldLogs.Count -gt 0) { Write-Verbose "$($oldLogs.Count) older log files were found" if ($Remediate -eq $True) { $OldLogs | Select-Object -ExpandProperty FullName | Remove-Item -Force $stat = "REMEDIATED" $msg = "deleted $($OldLogs.Count) of $numlogs IIS logs older than $MaxDaysOld days old" } else { $stat = "FAIL" $msg = "$($OldLogs.Count) of $numlogs IIS logs older than $MaxDaysOld days old" } } else { $stat = "PASS" $msg = "there are no IIS logs older than $MaxDaysOld days old" } $tempdata.Add([pscustomobject]@{ Status = $stat Message = $msg }) $totalDiskSize = $(Get-CimInstance -ClassName Win32_LogicalDisk -Filter "DeviceID = 'C:'" | Select-Object -ExpandProperty Size) / 1MB $logSpaceUsed = [math]::Round($TotalSpaceMB / $totalDiskSize, 4) if (($logSpaceUsed * 100) -gt $MaxSpacePct) { $stat = "FAIL" $msg = "IIS logs are using $TotalSpaceMB MB or $($logSpaceUsed * 100)`% of total capacity" } else { $stat = "PASS" $msg = "IIS logs are using $TotalSpaceMB MB or $($logSpaceUsed * 100)`% of total capacity" } $tempdata.Add([pscustomobject]@{ Status = $stat Message = $msg }) $result = [pscustomobject]@{ TestName = $TestName TestGroup = $TestGroup TestData = $tempdata Description = $Description Status = $stat Message = $msg Credential = $(if($ScriptParams.Credential){$($ScriptParams.Credential).UserName} else { $env:USERNAME }) } } catch { $result = [pscustomobject]@{ TestName = $TestName TestGroup = $TestGroup TestData = $tempdata Description = $Description Status = 'ERROR' Activity = $($_.CategoryInfo.Activity -join(";")) Message = $($_.Exception.Message -join(";")) Trace = $($_.ScriptStackTrace -join(";")) RunAs = $($env:USERNAME) RunOn = $($env:COMPUTERNAME) Credential = $(if($ScriptParams.Credential){$($ScriptParams.Credential).UserName} else { $env:USERNAME }) } } finally { Write-Output $result } } |