functions/Start-PrerequisiteCheck.ps1
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function Start-PrerequisiteCheck { <# .SYNOPSIS Check system prerequisites .DESCRIPTION This method will ensure that all prerequisites are in place before the automated configuration .PARAMETER ComputerName Computer name we are running against .PARAMETER SqlRemote Switch to check for remote SQL instnaces .PARAMETER Confirm Parameter used to prompt for user confirmation .PARAMETER WhatIf Parameter used to validate a run without making changes .PARAMETER EnableException Depending on whether $EnableException is true or false it will do the following: 1. ($True) - Throw a bloody terminating error. Game over. 2. ($False) - Write a nice warning about how Foo failed bar, then terminate the function. The return on the next line will then end the calling function. .EXAMPLE PS C:\> Start-PrerequisiteCheck -ComputerName Machine01 -Verbose This will start the prerequisite checks .EXAMPLE PS C:\> Start-PrerequisiteCheck -ComputerName Machine01 -SqlRemote -Verbose This will start the prerequisite checks and check for a remote Sql instance .EXAMPLE PS C:\> Start-PrerequisiteCheck -ComputerName Machine01 -EnableException This will change the termination when we encounter an error .NOTES The prerequisites below are still required for successful AIP scanner installation. 1. A Windows Server 2012 R2 or 2016 Server to run the service with a minimum 4 CPU and 4GB RAM physical or virtual NOTE: The scanner will allocate RAM 2.5-3 times of size of all files being scanned in parallel. Thus, if you scan 40 files that are 20MB each at the same time, it should take about 202.540=2GB RAM. However, if you have one big 1GB file it can take 3GB of RAM just for that file. Internet connectivity necessary for Azure Information Protection ---------------------------------------------------------------- NOTE: A SQL Server 2012+ local or remote instance (Any version from Express or better is supported) Sysadmin role needed to install scanner service (user running Install-AIPScanner, not the service account) NOTE: If using SQL Server Express, the SQL Instance name is ServerName\SQLExpress. NOTE: At this time, a different SQL instance is needed for each AIP Scanner node. Service account created in On Premises AD (I will call this account AIPScanner in this document). Service requires Log on locally right and Log on as a service right (the second will be given during scanner service install). Service account requires Read permissions to each repository for discovery and Read/Write permissions for classification/protection. AzInfoProtection.exe available on the Microsoft Download Center (The scanner bits are included with the AIP Client) For more information on the logging system and PSFramework: https://psframework.org/documentation/documents/psframework/logging/loggingto/debuglog.html #> [CmdletBinding(SupportsShouldProcess)] param ( [object] $ComputerName = (Get-PSFConfigValue -Fullname AIPScannerConfig.ComputerName), [switch] $SqlRemote, [switch] $EnableException ) begin { Write-PSFMessage -Level Host -String 'Start-PrerequisiteCheck.Message1' } process { if (-NOT (Assert-ElevatedPermission)) { return } Assert-IEEnhancedSC $OriginalPreference = $ProgressPreference $ProgressPreference = "SilentlyContinue" Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message2' $ServerVersion = Get-CimInstance Win32_OperatingSystem | Select-Object -ExpandProperty Caption if (($ServerVersion -match "Microsoft Windows Server 2012 R2")` -or ($ServerVersion -like "Microsoft Windows Server 2016*")` -or ($ServerVersion -like "Microsoft Windows Server 2019*")` -or ($ServerVersion -like "Microsoft Windows Server 2022*")) { Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message3' } else { Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message4' return } Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message5' $WindowsFeature = Get-WindowsFeature | Where-Object Name -eq "NFS-Client" if (-NOT ($WindowsFeature.Installed)) { Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message6' Install-WindowsFeature -Name "NFS-Client" -verbose } else { Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message7' } Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message8' $ComputerSystem = Get-CimInstance -Class "Win32_ComputerSystem" $Memory = [math]::Ceiling($ComputerSystem.TotalPhysicalMemory / 1024 / 1024 / 1024) if ( $Memory -lt 4 ) { Write-PSFMessage -Level Host -String 'Start-PrerequisiteCheck.Message9' return } else { Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message10' -StringValues $Memory } try { Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message11' if (Test-NetConnection -InformationLevel Quiet) { Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message12' } else { Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message13' return } Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message14' if ($SqlRemote) { foreach ($ServerInstance in $ComputerName) { if (Get-SqlInstance -ServerInstance $ServerInstance -ErrorAction Stop) { Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message15' -StringValues $ServerInstance $Instancefound = $true } else { $Instancefound = $false } } if (-NOT ($Instancefound)) { Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message16' return } } else { # Check local instance if (Get-SqlInstance -ServerInstance ("$env:COMPUTERNAME\SQLEXPRESS") -ErrorAction Continue) { Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message17' -StringValues "$env:COMPUTERNAME\SQLEXPRESS" } else { Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message18' return } } if (Get-LocalUser -Name (Get-PSFConfigValue -Fullname AIPScannerConfig.ScannerAccountName) -ErrorAction SilentlyContinue) { Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message19' New-AIPFileShare if (New-AzureTenantAccountAndApplication) { New-AIPScannerInstall } else { return } } else { Write-PSFMessage -Level Verbose -String 'Start-PrerequisiteCheck.Message20' } # Restore original preferences $ProgressPreference = $OriginalPreference } catch { Stop-PSFFunction -String 'Start-PrerequisiteCheck.Message21' -EnableException $EnableException -Cmdlet $PSCmdlet -ErrorRecord $_ } } end { Write-PSFMessage -Level Host -String 'Start-PrerequisiteCheck.Message22' } } |