Enable verbose logging when System.Debug is set in Azure Pipelines by Copilot · Pull Request #4027 · Azure/azure-sdk-for-rust

Copilot · 2026-03-25T01:17:18Z

When System.Debug is enabled in Azure DevOps, enable verbose logging for both Rust tests and the test-proxy process to improve failure diagnostics.

eng/pipelines/templates/variables/rust.yml: Set RUST_LOG=trace when System.Debug is true, RUST_LOG=info otherwise (single source of truth for Rust log level).
eng/pipelines/templates/jobs/ci.tests.yml and live.tests.yml: Add a conditional step to set Logging__LogLevel__Default=Debug (ASP.NET Core log level for test-proxy) when System.Debug is true.
eng/pipelines/templates/jobs/ci.tests.yml: Add a conditional step to dump test-proxy audit logs via Invoke-WebRequest when System.Debug is true, with error handling so failures don't mask test results.

Original prompt

This section details on the original issue you should resolve

<issue_title>Enable tracing and more information when System.Debug is checked in AzDO</issue_title>
<issue_description>When we check System.Debug (env var SYSTEM_DEBUG, I believe) in Azure DevOps, we should set env vars like in #4025 and set RUST_LOG=trace to log more information for diagnostics so we can more easily troubleshoot issues like we saw for #4001.</issue_description>

<agent_instructions>Get changes to the pipeline in #4025 to determine what environment variables to set when System.Debug is checked in Azure Pipelines. There's an Azure Pipelines variable for that or I believe you can also use the SYSTEM_DEBUG environment variable, but you should figure that out. Open a PR that updates the appropriate pipeline under eng/pipelines to set the env vars before starting the test proxy or running tests.</agent_instructions>

Comments on the Issue (you are @copilot in this section)
@heaths We could add a step to our local build scripts under `eng/pipelines` that would export environment variables `RUST_LOG` and whatever #4025 is setting to have ASP.NET's HTTP server log more information, which test-proxy supports.

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Fixes Enable tracing and more information when System.Debug is checked in AzDO #4026

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When System.Debug is true in Azure DevOps, set RUST_LOG=trace and Logging__LogLevel__Default=Debug to enable verbose logging from both the Rust test code and the ASP.NET Core test-proxy process. Also adds the "Dump Test Proxy Audit Logs" step from PR #4025. Fixes #4026 Co-authored-by: heaths <1532486+heaths@users.noreply.github.com> Agent-Logs-Url: https://github.com/Azure/azure-sdk-for-rust/sessions/a6b116bf-9dde-4eeb-a0ae-b45a876adc6a

Copilot

Pull request overview

Updates the Rust CI/live-test Azure Pipelines job templates so that enabling System.Debug turns on more verbose diagnostics for both Rust tests and the test-proxy process, improving failure triage.

Changes:

Add a conditional step (when System.Debug == true) to set RUST_LOG=trace and Logging__LogLevel__Default=Debug so subsequent steps inherit verbose logging.
In CI test jobs, add a conditional step to dump test-proxy audit logs (GET /Audit/Logs) when System.Debug == true.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
eng/pipelines/templates/jobs/live.tests.yml	Adds conditional verbose logging variable setup for live test jobs.
eng/pipelines/templates/jobs/ci.tests.yml	Adds conditional verbose logging variable setup and a conditional step to dump test-proxy audit logs.

eng/pipelines/templates/jobs/live.tests.yml

eng/pipelines/templates/jobs/ci.tests.yml

@copilot also change variables/rust.yml so that we set "trace" instead of "debug" if System.Debug is true, and set the default level = currently just "" - to "info". Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

heaths

@copilot I told you to also update eng/pipelines/templates/variables/rust.yml to set RUST_LOG to trace when System.Debug is true, or set it to info otherwise.

Instead of duplicating RUST_LOG in each job template, update the shared variables template to use 'trace' when System.Debug is true and 'info' otherwise (previously 'debug' / empty string). Co-authored-by: heaths <1532486+heaths@users.noreply.github.com> Agent-Logs-Url: https://github.com/Azure/azure-sdk-for-rust/sessions/48fbd5b7-0e05-4d88-af2c-410dade8cf74

Copilot · 2026-03-25T20:44:46Z

@copilot I told you to also update eng/pipelines/templates/variables/rust.yml to set RUST_LOG to trace when System.Debug is true, or set it to info otherwise.

Done in aa6e5b8. Updated eng/pipelines/templates/variables/rust.yml to set RUST_LOG=trace when System.Debug is true, and RUST_LOG=info otherwise. The job templates only set Logging__LogLevel__Default=Debug (for test-proxy's ASP.NET logging) so there's no duplication.

heaths · 2026-03-25T20:45:18Z

@copilot summarize the pull request description. Why do you keep leaving your task list in there? It's useless!

Copilot · 2026-03-25T20:47:16Z

@copilot summarize the pull request description. Why do you keep leaving your task list in there? It's useless!

Updated the PR description with a proper summary.

heaths · 2026-03-25T21:42:35Z

/check-enforcer evaluate

scbedd

❤️

Initial plan

a0b890d

Copilot AI assigned Copilot and heaths Mar 25, 2026

Copilot started work on behalf of heaths March 25, 2026 01:17 View session

Copilot AI changed the title ~~[WIP] Enable tracing when System.Debug is checked in AzDO~~ Enable verbose logging when System.Debug is set in Azure Pipelines Mar 25, 2026

Copilot AI requested a review from heaths March 25, 2026 01:23

Copilot finished work on behalf of heaths March 25, 2026 01:24

heaths approved these changes Mar 25, 2026

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heaths marked this pull request as ready for review March 25, 2026 18:42

heaths requested review from RickWinter, danieljurek and weshaggard as code owners March 25, 2026 18:42

Copilot AI review requested due to automatic review settings March 25, 2026 18:42

Copilot started reviewing on behalf of heaths March 25, 2026 18:45 View session

Copilot AI reviewed Mar 25, 2026

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@copilot also change variables/rust.yml so that we set "trace" instead of "debug" if System.Debug is true, and set the default level = currently just "" - to "info". Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

heaths requested changes Mar 25, 2026

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Copilot started work on behalf of heaths March 25, 2026 20:41 View session

Copilot AI requested a review from heaths March 25, 2026 20:45

Copilot finished work on behalf of heaths March 25, 2026 20:45

Copilot started work on behalf of heaths March 25, 2026 20:45 View session

heaths approved these changes Mar 25, 2026

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heaths enabled auto-merge (squash) March 25, 2026 20:46

Copilot AI requested a review from heaths March 25, 2026 20:47

Copilot finished work on behalf of heaths March 25, 2026 20:47

scbedd approved these changes Mar 25, 2026

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heaths merged commit d04bc61 into main Mar 25, 2026
21 checks passed

heaths deleted the copilot/add-debug-tracing-environment-vars branch March 25, 2026 21:44

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Enable verbose logging when System.Debug is set in Azure Pipelines#4027

Enable verbose logging when System.Debug is set in Azure Pipelines#4027
heaths merged 4 commits intomainfrom
copilot/add-debug-tracing-environment-vars

Copilot AI commented Mar 25, 2026 •

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Copilot AI commented Mar 25, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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Copilot AI commented Mar 25, 2026 •

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