cmhealth

0.3.0

backlog/Test-WsusIISAppPoolSettings.ps1

function Test-WsusIisAppPoolSettings {
    [CmdletBinding()]
    param (
        [parameter()][string] $TestName = "WSUS IIS Application Pool Settings",
        [parameter()][string] $TestGroup = "configuration",
        [parameter()][string] $Description = "Validate WSUS IIS application pool settings",
        [parameter()][hashtable] $ScriptParams
    )
    try {
        $startTime = (Get-Date)
        [int32]$QueueLength = Get-CmHealthDefaultValue -KeySet "wsus:QueueLength" -DataSet $CmHealthConfig
        [int32]$PrivateMemLimit = Get-CmHealthDefaultValue -KeySet "wsus:PrivateMemLimit" -DataSet $CmHealthConfig
        $stat   = "PASS"
        $except = "WARNING"
        $msg    = "No issues found"
        [System.Collections.Generic.List[PSObject]]$tempdata = @() # for detailed test output to return if needed
        $oldLoc = $(Get-Location).Path
        if (!(Get-Module WebAdministration -ListAvailable)) { throw "WebAdministration module not installed. Please install RSAT" }
        Import-Module WebAdministration
        $WsusAppPool = Get-ItemProperty IIS:\AppPools\WsusPool
        Write-Verbose "recommended queue length: $QueueLength"
        $cql = $(Get-ItemProperty IIS:\AppPools\WsusPool\).queueLength
        if ($cql -ne $QueueLength) {
            if ($ScriptParams.Remediate -eq $True) {
                Set-ItemProperty -Path $WsusAppPool.PSPath -Name queueLength -Value $QueueLength
                $tempdata.Add([pscustomobject]@{
                    Test    = "QueueLength"
                    Status  = "REMEDIATED"
                    Message = "new queue length: $((Get-ItemProperty IIS:\AppPools\WsusPool\).queueLength)"
                })
                $stat = "REMEDIATED"
                $msg  = "QueueLenght has been updated to $QueueLength"
            }
            else {
                $tempdata.Add([pscustomobject]@{
                    Test    = "QueueLength"
                    Status  = $except
                    Message = "queue length is currently: $cql. Should be $QueueLength"
                })
                $stat = $except
                $msg = "Queuelength is incorrect"
            }
        }
        else {
            $tempdata.Add([pscustomobject]@{
                Test    = "QueueLength"
                Status  = "PASS"
                Message = "queue length is currently set to: $cql"
            })
        }
        $applicationPoolsPath = "/system.applicationHost/applicationPools"
        $applicationPools = Get-WebConfiguration $applicationPoolsPath
        foreach ($appPool in $applicationPools.Collection) {
            $appPoolPath = "$applicationPoolsPath/add[@name='$($appPool.Name)']"
            if ($appPool.Name -eq 'WsusPool') {
                Write-Verbose "recommended private memory limit: $PrivateMemLimit"
                $cpm = $(Get-WebConfiguration "$appPoolPath/recycling/periodicRestart/@privateMemory").Value
                Write-Verbose "current private memory limit: $cpm"
                if ($cpm -ne $PrivateMemLimit) {
                    if ($ScriptParams.Remediate -eq $True) {
                        Set-WebConfiguration "$appPoolPath/recycling/periodicRestart/@privateMemory" -Value $PrivateMemLimit
                        $newpm = Get-WebConfiguration "$appPoolPath/recycling/periodicRestart/@privateMemory"
                        $tempdata.Add([pscustomobject]@{
                            Test    = "PrivateMemLimit"
                            Status  = "REMEDIATED"
                            Message = "new private memory limit: $newpm"
                        })
                        $stat = "REMEDIATED"
                        $msg = "PrivateMemLimit has been updated to $PrivateMemLimit"
                    }
                    else {
                        $tempdata.Add([pscustomobject]@{
                            Test    = "PrivateMemLimit"
                            Status  = $except
                            Message = "private memory limit is set to: $cpm. Should be $PrivateMemLimit"
                        })
                        $stat = $except
                        $msg  = "PrivateMemLimit is incorrect"
                    }
                }
                else {
                    $tempdata.Add([pscustomobject]@{
                        Test    = "PrivateMemLimit"
                        Status  = "PASS"
                        Message = "private memory limit is currently set to: $cpm"
                    })
                }
            }
        }
    }
    catch {
        $stat = 'ERROR'
        $msg = $_.Exception.Message -join ';'
    }
    finally {
        Set-Location $oldLoc
        $rt = Get-RunTime -BaseTime $startTime
        Write-Output $([pscustomobject]@{
            TestName    = $TestName
            TestGroup   = $TestGroup
            TestData    = $tempdata
            Description = $Description
            Status      = $stat
            Message     = $msg
            RunTime     = $rt
            Credential  = $(if($ScriptParams.Credential){$($ScriptParams.Credential).UserName} else { $env:USERNAME })
        })
    }
}