feat: windows-exporter into windows vhd build

[chmill-zz]

What this PR does / why we need it:

this is adding node-exporter into the vhdbuild by default for windows. At boot CSE will register the service in nssm

Which issue(s) this PR fixes:

Fixes #

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds windows-exporter to the Windows VHD build so nodes can start the aks-windows-exporter service during CSE using VHD-baked assets (with a sentinel to keep aks-vm-extension in no-op mode for these VHDs).

Changes:

• Bake windows-exporter binaries/config/health script into the Windows VHD and create a sentinel file.
• Register/start aks-windows-exporter at CSE time via new windowsexporterfunc.ps1, with unit tests and VHD content tests.
• Add e2e validation ensuring the service is running and serving metrics when the sentinel is present.

Reviewed changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
vhdbuilder/packer/windows/windows-vhd-builder-sig.json	Stages windows-exporter config + health script into c:\k\ during image build.
vhdbuilder/packer/windows/configure-windows-vhd.ps1	Extracts/stages windows-exporter into C:\k\windows-exporter and creates sentinel.
vhdbuilder/packer/test/windows-vhd-content-test.ps1	Validates windows-exporter assets + sentinel exist on the built VHD.
staging/cse/windows/windowsexporterfunc.ps1	New CSE-time installer to register/start aks-windows-exporter via NSSM and health-check it.
staging/cse/windows/windowsexporterfunc.tests.ps1	Adds Pester tests for sentinel/no-op behavior and error code on missing NSSM.
parts/windows/kuberneteswindowssetup.ps1	Dot-sources exporter functions and invokes Install-WindowsExporter during BasePrep.
parts/windows/windowscsehelper.ps1	Adds a new Windows CSE error code for windows-exporter start failure.
staging/cse/windows/kubernetesfunc.ps1	Adds Defender exclusions for windows-exporter log file paths.
parts/windows/windowsexporter/windows-exporter-config.yml	New baked config (port 19182, enabled collectors, service include filter, debug logging).
parts/windows/windowsexporter/windows-exporter-health.ps1	New baked health/version helper used by CSE health validation.
parts/common/components.json	Adds windows-exporter component download metadata for VHD caching.
e2e/validators.go	Adds Windows exporter validator (service + metrics) gated by sentinel presence.
e2e/scenario_win_test.go	Runs the new validator across Windows e2e scenarios.
e2e/config/config.go	Fixes a formatting issue in panic error rendering (%w -> %v).
staging/cse/windows/README	Updates the list of scripts to download, including windowsexporterfunc.ps1.

[Copilot]

Pull request overview

Copilot reviewed 15 out of 15 changed files in this pull request and generated 6 comments.

[github-actions]

Changes cached containers or packages on windows VHDs

Please get a Windows SIG member to approve.

The following dif file shows any additions or deletions from what will be cached on windows VHDs organised by VHD type.

• Additions are new things cached.
• Deletions are things no longer cached.

diff --git a/vhd_files/2022-containerd-gen2.txt b/vhd_files/2022-containerd-gen2.txt
index ce25fa5..83b378c 100644
--- a/vhd_files/2022-containerd-gen2.txt
+++ b/vhd_files/2022-containerd-gen2.txt
@@ -33,0 +34 @@ c:\akse-cache\win-vnet-cni\: https://packages.aks.azure.com/azure-cni/v1.6.21/bi
+c:\akse-cache\windows-exporter\: https://packages.aks.azure.com/dalec-packages/windows-exporter/0.31.2/windows/amd64/windows-exporter_0.31.2-1_amd64.zip
diff --git a/vhd_files/2022-containerd.txt b/vhd_files/2022-containerd.txt
index 620eb5a..0110021 100644
--- a/vhd_files/2022-containerd.txt
+++ b/vhd_files/2022-containerd.txt
@@ -33,0 +34 @@ c:\akse-cache\win-vnet-cni\: https://packages.aks.azure.com/azure-cni/v1.6.21/bi
+c:\akse-cache\windows-exporter\: https://packages.aks.azure.com/dalec-packages/windows-exporter/0.31.2/windows/amd64/windows-exporter_0.31.2-1_amd64.zip
diff --git a/vhd_files/2025-gen2.txt b/vhd_files/2025-gen2.txt
index d5aea5a..d9c995c 100644
--- a/vhd_files/2025-gen2.txt
+++ b/vhd_files/2025-gen2.txt
@@ -31,0 +32 @@ c:\akse-cache\win-vnet-cni\: https://packages.aks.azure.com/azure-cni/v1.6.21/bi
+c:\akse-cache\windows-exporter\: https://packages.aks.azure.com/dalec-packages/windows-exporter/0.31.2/windows/amd64/windows-exporter_0.31.2-1_amd64.zip
diff --git a/vhd_files/2025.txt b/vhd_files/2025.txt
index 7012908..395b4e0 100644
--- a/vhd_files/2025.txt
+++ b/vhd_files/2025.txt
@@ -31,0 +32 @@ c:\akse-cache\win-vnet-cni\: https://packages.aks.azure.com/azure-cni/v1.6.21/bi
+c:\akse-cache\windows-exporter\: https://packages.aks.azure.com/dalec-packages/windows-exporter/0.31.2/windows/amd64/windows-exporter_0.31.2-1_amd64.zip
diff --git a/vhd_files/23H2-gen2.txt b/vhd_files/23H2-gen2.txt
index 41b56d8..2e010f7 100644
--- a/vhd_files/23H2-gen2.txt
+++ b/vhd_files/23H2-gen2.txt
@@ -32,0 +33 @@ c:\akse-cache\win-vnet-cni\: https://packages.aks.azure.com/azure-cni/v1.6.21/bi
+c:\akse-cache\windows-exporter\: https://packages.aks.azure.com/dalec-packages/windows-exporter/0.31.2/windows/amd64/windows-exporter_0.31.2-1_amd64.zip
diff --git a/vhd_files/23H2.txt b/vhd_files/23H2.txt
index efdd638..f8ae8fa 100644
--- a/vhd_files/23H2.txt
+++ b/vhd_files/23H2.txt
@@ -32,0 +33 @@ c:\akse-cache\win-vnet-cni\: https://packages.aks.azure.com/azure-cni/v1.6.21/bi
+c:\akse-cache\windows-exporter\: https://packages.aks.azure.com/dalec-packages/windows-exporter/0.31.2/windows/amd64/windows-exporter_0.31.2-1_amd64.zip