feat(telemetry): expose compute pipeline stage metrics

deploy/telemetry-plane/telegraf/Install-NdcMissionCoreTelegraf.ps1

@@ -2,7 +2,8 @@
 param(
     [string]$Version = "1.38.4",
     [string]$ExpectedSha256 = "6c7878ec319471ac85b82443baec2f3fa5dbcf1b6e2da5d5cd2cbb60fff2bb45",
-    [string]$ConfigurationTemplate = "$PSScriptRoot\mission-core-windows.conf.tmpl"
+    [string]$ConfigurationTemplate = "$PSScriptRoot\mission-core-windows.conf.tmpl",
+    [string]$PipelineCollector = "$PSScriptRoot\Get-NdcMissionCorePipelineTelemetry.ps1"
 )
 
 $ErrorActionPreference = "Stop"
@@ -10,6 +11,7 @@ $serviceName = "telegraf"
 $installRoot = "C:\Program Files\NDC\Mission Core\Telegraf"
 $configurationRoot = "C:\ProgramData\NDC\MissionCore\telemetry-agent"
 $configurationPath = Join-Path $configurationRoot "telegraf.conf"
+$collectorPath = Join-Path $configurationRoot "Get-NdcMissionCorePipelineTelemetry.ps1"
 $archiveUrl = "https://dl.influxdata.com/telegraf/releases/telegraf-$($Version)_windows_amd64.zip"
 $payload = [Console]::In.ReadToEnd() | ConvertFrom-Json
 
@@ -36,6 +38,9 @@ if (Get-Service -Name $serviceName -ErrorAction SilentlyContinue) {
 if (-not (Test-Path -LiteralPath $ConfigurationTemplate -PathType Leaf)) {
     throw "Configuration template not found: $ConfigurationTemplate"
 }
+if (-not (Test-Path -LiteralPath $PipelineCollector -PathType Leaf)) {
+    throw "Pipeline collector not found: $PipelineCollector"
+}
 
 $temporaryRoot = Join-Path $env:TEMP "ndc-mission-core-telegraf-$([Guid]::NewGuid().ToString('N'))"
 $archivePath = Join-Path $temporaryRoot "telegraf.zip"
@@ -57,6 +62,7 @@ try {
     New-Item -ItemType Directory -Path $installRoot, $configurationRoot -Force | Out-Null
     Copy-Item -LiteralPath $sourceExecutable.FullName -Destination (Join-Path $installRoot "telegraf.exe")
     Copy-Item -LiteralPath $ConfigurationTemplate -Destination $configurationPath
+    Copy-Item -LiteralPath $PipelineCollector -Destination $collectorPath
     & icacls.exe $configurationRoot /inheritance:r /grant:r `
         "*S-1-5-18:(OI)(CI)F" "*S-1-5-32-544:(OI)(CI)F" | Out-Null
     if ($LASTEXITCODE -ne 0) {
@@ -114,6 +120,7 @@ try {
         Status = $service.Status.ToString()
         StartType = $service.StartType.ToString()
         Configuration = $configurationPath
+        PipelineCollector = $collectorPath
         Sha256 = $actualSha256
     } | ConvertTo-Json -Compress
 }