[release/v7.6] Add network isolation policy parameter to vPack pipeline #26444
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…26223) Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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Pull Request Overview
This PR backports network isolation policy parameter support to the release/v7.6 vPack pipeline, allowing build engineers to specify network isolation policies (KS4, R1, Netlock) with R1 as the default.
Key Changes:
- Added
netisoparameter with three allowed values (KS4, R1, Netlock) and R1 default - Configured
WindowsHostVersion.NetworkfeatureFlag to use the network isolation policy
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adityapatwardhan
approved these changes
Nov 13, 2025
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Backport of #26223 to release/v7.6
Triggered by @TravisEz13 on behalf of @TravisEz13
Original CL Label: CL-BuildPackaging
/cc @PowerShell/powershell-maintainers
Impact
REQUIRED: Choose either Tooling Impact or Customer Impact (or both). At least one checkbox must be selected.
Tooling Impact
Optional tooling enhancement that allows build engineers to specify network isolation policies (KS4, R1, Netlock) for vPack builds. Default behavior remains unchanged (RS1). Enables more flexible build environment configuration for testing and security scenarios.
Customer Impact
Regression
REQUIRED: Check exactly one box.
This is not a regression.
Testing
Verified by running the vPack pipeline with different network isolation policy values. The parameter is correctly propagated and used in Windows host configuration. Clean cherry-pick with no conflicts.
Risk
REQUIRED: Check exactly one box.
Medium risk: Changes CI/CD pipeline configuration to add network isolation policy support. This is a parameter addition with a safe default (RS1), so existing builds will continue working unchanged. The change has been validated in master and previously backported to v7.4 and v7.5 without issues.