AzStackHci.EnvironmentChecker

1.2100.2685.475

Obs/scripts/ObservabilityDeploymentHelper.psm1

                                ##------------------------------------------------------------------

##  <copyright file="ObservabilityDeploymentHelper.psm1" company="Microsoft">

##    Copyright (C) Microsoft. All rights reserved.

##  </copyright>

##------------------------------------------------------------------

#region Imports

Import-Module (Join-Path -Path $PSScriptRoot -ChildPath 'ExtensionHelper.psm1') `

    -DisableNameChecking `

    -Verbose:$false

Import-Module (Join-Path -Path $global:ObsArtifactsPaths.GMA -ChildPath 'GMATenantJsonHelper.psm1') `

    -DisableNameChecking `

    -Verbose:$false

#endregion Imports

#region Constants

$PublisherRegex = "Microsoft\.AzureStack\.Observability\.ObservabilityDeployment\.([\w+-]+)\.etwManifest.man"

$EventSourceLogSizeInBytes = 16777216

$ObservabilityDeploymentPath = Get-ObservabilityDeploymentPackagePath

$ObservabilityVhdFileName = "Observability.vhdx"

$AccessPath = "$env:SystemDrive\Observability"

$CleanupThresholdPercent = 90

$FreeSpaceThresholdPercent = 80

$PurgeFolderFrequencyInMinutes = 10

$SubFolderConfigFileName = "ObservabilityFoldersHost.json"

$ObservabilityScheduledTaskPath = "\Microsoft\AzureStack\Observability\"

$ObservabilityDeploymentScheduledTasks = @(

    'MountObservabilityVolume',

    'ObservabilityCensus',

    'ObservabilityRegistrationCensus',

    'ObservabilityUptime',

    'ObservabilityVolumePruner',

    'ObservabilityVolumeQuotaStatistics'

)

#endregion Constants

#region Functions

function Register-ObservabilityEventSources

{

    Param (

        [Parameter(Mandatory = $False)]

        [System.String] $LogFile

    )

    $functionName = $MyInvocation.MyCommand.Name

    Write-Log "[$functionName] Entering." -LogFile $LogFile

    $manifests = (Get-ChildItem "$ObservabilityDeploymentPath\lib\net472\*.etwManifest.man").FullName

    foreach ($manifest in $manifests)

    {

        $manifestDllPath = $manifest -creplace 'man', 'dll'

        $match = Select-String $PublisherRegex -InputObject $manifest

        $publisherName = $match.Matches.Groups[1].Value

        $eventSourceLogName = "$publisherName/Operational"

        Write-Log "[$functionName] Granting read only access for everyone to $manifest and $manifestDllPath" -LogFile $LogFile

        Write-Log "[$functionName] $(icacls $manifest /grant Everyone:R)" -LogFile $LogFile

        Write-Log "[$functionName] $(icacls $manifestDllPath /grant Everyone:R)" -LogFile $LogFile

        $publisherList = wevtutil ep

        if($publisherList.Contains($publisherName))

        {

            Write-Log "[$functionName] Publisher $publisherName already exists. Uninstalling." -LogFile $LogFile

            Write-Log "[$functionName] $(wevtutil uninstall-manifest $manifest /resourceFilePath:"$manifestdllPath" /messageFilePath:"$manifestDllPath")" -LogFile $LogFile

            Write-Log "[$functionName] Successfully unregistered publisher $publisherName." -LogFile $LogFile

        }

        Write-Log "[$functionName] wevtutil installing manifest $manifest with resourceFilePath and messageFilePath $manifestDllPath" -LogFile $LogFile

        Write-Log "[$functionName] $(wevtutil install-manifest $manifest /resourceFilePath:"$manifestdllPath" /messageFilePath:"$manifestDllPath")" -LogFile $LogFile

        Write-Log "[$functionName] wevtutil setting $eventSourceLogName log size to $EventSourceLogSizeInBytes" -LogFile $LogFile

        Write-Log "[$functionName] $(wevtutil set-log $eventSourceLogName /MaxSize:"$EventSourceLogSizeInBytes")" -LogFile $LogFile

    }

    Write-Log "[$functionName] Exiting." -LogFile $LogFile

}

function Unregister-ObservabilityEventSources

{

    Param (

        [Parameter(Mandatory = $False)]

        [System.String] $LogFile

    )

    $functionName = $MyInvocation.MyCommand.Name

    Write-Log "[$functionName] Entering." -LogFile $LogFile

    try {

        $manifests = (Get-ChildItem "$ObservabilityDeploymentPath\lib\net472\*.etwManifest.man").FullName

        foreach ($manifest in $manifests)

        {

            $manifestDllPath = $manifest -creplace 'man', 'dll'

            $match = Select-String $PublisherRegex -InputObject $manifest

            $publisherName = $match.Matches.Groups[1].Value

            Write-Log "[$functionName] Granting read only access for everyone to $manifest and $manifestDllPath" -LogFile $LogFile

            Write-Log "[$functionName] $(icacls $manifest /grant Everyone:R)" -LogFile $LogFile

            Write-Log "[$functionName] $(icacls $manifestDllPath /grant Everyone:R)" -LogFile $LogFile

            $publisherList = wevtutil ep

            if($publisherList.Contains($publisherName))

            {

                Write-Log "[$functionName] Publisher $publisherName is registered. Unregistering." -LogFile $LogFile

                Write-Log "[$functionName] $(wevtutil uninstall-manifest $manifest /resourceFilePath:"$manifestdllPath" /messageFilePath:"$manifestDllPath")" -LogFile $LogFile

                Write-Log "[$functionName] Successfully unregistered publisher $publisherName." -LogFile $LogFile

            }

            else {

                Write-Log "[$functionName] Publisher $publisherName for manifest ($manifest) was not registered only." -LogFile $LogFile

            }

        }

    }

    catch {

        $exceptionDetails = Get-ExceptionDetails -ErrorObject $_

        ## Making this as a non-terminating error in case there are exceptions here.

        Write-Log "[$functionName] Failed due to exception: $exceptionDetails." -LogFile $LogFile -Level $MiscConstants.Level.Warning

    }

    Write-Log "[$functionName] Exiting." -LogFile $LogFile

}

function Set-ObservabilityDeploymentScheduledTasks

{

    Param (

        [Parameter(Mandatory = $False)]

        [System.String] $LogFile

    )

    $functionName = $MyInvocation.MyCommand.Name

    Import-Module "$ObservabilityDeploymentPath\content\Powershell\ObservabilityHelpers.psm1" -DisableNameChecking

    Import-Module "$ObservabilityDeploymentPath\content\Powershell\ObservabilityUptimeHelpers.psm1" -DisableNameChecking

    Import-Module "$ObservabilityDeploymentPath\content\Powershell\ObservabilityCensusHelpers.psm1"

    $observabilityVhdPath = Get-ObservabilityVhdFileIfExists -LogFile $LogFile

    if ($observabilityVhdPath)

    {

        Write-Log -Message "$functionName : Registering scheduledtask MountObservabilityVolume." -LogFile $LogFile

        Add-MountVolumeScheduledTask -Path $observabilityVhdPath | Out-Null

        Write-Log -Message "$functionName : Successfully registered scheduledtask MountObservabilityVolume." -LogFile $LogFile

    }

    Write-Log -Message "$functionName : Registering scheduled task ObservabilityUptime." -LogFile $LogFile

    Set-UptimeTaskWithRetry | Out-Null

    Write-Log -Message "$functionName : Successfully registered scheduled task ObservabilityUptime." -LogFile $LogFile

    Write-Log -Message "$functionName : Registering scheduled task ObservabilityRegistrationCensus." -LogFile $LogFile

    Set-RegistrationEventsTaskWithRetry | Out-Null

    Write-Log -Message "$functionName : Successfully registered scheduled task ObservabilityRegistrationCensus." -LogFile $LogFile

    Write-Log -Message "$functionName : Registering scheduled task ObservabilityCensus." -LogFile $LogFile

    Set-CensusTaskWithRetry | Out-Null

    Write-Log -Message "$functionName : Successfully registered scheduled task ObservabilityCensus." -LogFile $LogFile

    Write-Log -Message "$functionName : Registering scheduled tasks ObservabilityVolumePruner and ObservabilityVolumeQuotaStatistics." -LogFile $LogFile

    New-VolumeFoldersAndPrunerWithRetry `

        -AccessPath $AccessPath `

        -CleanupThresholdPercent $CleanupThresholdPercent `

        -FreeSpaceThresholdPercent $FreeSpaceThresholdPercent `

        -PurgeFolderFrequencyInMinutes $PurgeFolderFrequencyInMinutes `

        -SubFolderConfigFileName $SubFolderConfigFileName | Out-Null

    Write-Log -Message "$functionName : Successfully registered scheduled tasks ObservabilityVolumePruner and ObservabilityVolumeQuotaStatistics." -LogFile $LogFile

    Disable-ObservabilityDeploymentScheduledTasks -LogFile $LogFile

}

function Enable-ObservabilityDeploymentScheduledTasks

{

    Param (

        [Parameter(Mandatory = $False)]

        [System.String] $LogFile

    )

    $functionName = $MyInvocation.MyCommand.Name

    foreach($taskName in $ObservabilityDeploymentScheduledTasks)

    {

        $task = ScheduledTasks\Get-ScheduledTask `

            -TaskPath $ObservabilityScheduledTaskPath `

            -TaskName $taskName `

            -ErrorAction $MiscConstants.ErrorActionPreference.SilentlyContinue

        if ($null -eq $task)

        {

            Write-Log `

                -Message "$functionName : No scheduled task with name $taskName was found to enable." `

                -LogFile $LogFile

        }

        else {

            ScheduledTasks\Enable-ScheduledTask `

                -InputObject $task `

                -ErrorAction $MiscConstants.ErrorActionPreference.Stop `

                -Verbose:$false `

                | Out-Null

            Write-Log `

                -Message "$functionName : Successfully enabled obs scheduled task with name name $($task.TaskName) at path $($task.TaskPath)." `

                -LogFile $LogFile

        }

    }

}

function Disable-ObservabilityDeploymentScheduledTasks

{

    Param (

        [Parameter(Mandatory = $False)]

        [System.String] $LogFile

    )

    $functionName = $MyInvocation.MyCommand.Name

    foreach($taskName in $ObservabilityDeploymentScheduledTasks)

    {

        $task = ScheduledTasks\Get-ScheduledTask `

            -TaskPath $ObservabilityScheduledTaskPath `

            -TaskName $taskName `

            -ErrorAction $MiscConstants.ErrorActionPreference.SilentlyContinue

        if ($null -eq $task)

        {

            Write-Log `

                -Message "$functionName : No scheduled task with name $taskName was found to disable." `

                -LogFile $LogFile

        }

        else {

            ScheduledTasks\Disable-ScheduledTask `

                -InputObject $task `

                -ErrorAction $MiscConstants.ErrorActionPreference.Stop `

                -Verbose:$false `

                | Out-Null

            Write-Log `

                -Message "$functionName : Successfully disabled obs scheduled task with name $($task.TaskName) at path $($task.TaskPath)." `

                -LogFile $LogFile

        }

    }

}

function Unregister-ObservabilityDeploymentScheduledTasks

{

    Param (

        [Parameter(Mandatory = $False)]

        [System.String] $LogFile

    )

    $functionName = $MyInvocation.MyCommand.Name

    foreach($taskName in $ObservabilityDeploymentScheduledTasks)

    {

        $task = ScheduledTasks\Get-ScheduledTask `

            -TaskPath $ObservabilityScheduledTaskPath `

            -TaskName $taskName `

            -ErrorAction $MiscConstants.ErrorActionPreference.SilentlyContinue

        if ($null -eq $task)

        {

            Write-Log `

                -Message "$functionName : No scheduled task with name $taskName was found to unregister." `

                -LogFile $LogFile

        }

        else {

            ScheduledTasks\Unregister-ScheduledTask `

                -InputObject $task `

                -ErrorAction $MiscConstants.ErrorActionPreference.Stop `

                -Verbose:$false `

                -Confirm:$false `

                | Out-Null

            Write-Log `

                -Message "$functionName : Successfully unregistered obs scheduled task with name $($task.TaskName) at path $($task.TaskPath)." `

                -LogFile $LogFile

        }

    }

}

function Get-ObservabilityVhdFileIfExists

{

    Param (

        [Parameter(Mandatory = $False)]

        [System.String] $LogFile

    )

    $functionName = $MyInvocation.MyCommand.Name

    Write-Log `

        -Message "[$functionName] Entering." `

        -LogFile $LogFile

    $letterDrives = (Get-PSDrive).Name -match '^[a-z]$'

    foreach($drive in $letterDrives)

    {

        $vhdPath = Join-Path "$($drive):" -ChildPath $ObservabilityVhdFileName

        if (Test-Path $vhdPath)

        {

            Write-Log `

                -Message "[$functionName] Found Observability volume at $vhdPath." `

                -LogFile $LogFile

            return $vhdPath

        }

    }

    Write-Log `

        -Message "[$functionName] No $ObservabilityVhdFileName file found." `

        -LogFile $LogFile

    return $false

}

#endregion Functions

#region Exports

Export-ModuleMember -Function Disable-ObservabilityDeploymentScheduledTasks

Export-ModuleMember -Function Enable-ObservabilityDeploymentScheduledTasks

Export-ModuleMember -Function Register-ObservabilityEventSources

Export-ModuleMember -Function Set-ObservabilityDeploymentScheduledTasks

Export-ModuleMember -Function Unregister-ObservabilityDeploymentScheduledTasks

Export-ModuleMember -Function Unregister-ObservabilityEventSources

#endregion Exports

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