feat: support apisix.tracing configuration

[guoqqqi]

Summary

• Add apisix.tracing configuration parameter to gateway helm chart
• Default value: false
• When enabled, provides comprehensive request lifecycle tracing (SSL/SNI, rewrite, access, header_filter, body_filter, and log)
• When disabled, OpenTelemetry collects only a single span per request

Closes #269

Changes

• values.yaml: Added apisix.tracing: false with helm-docs annotation
• configmap.yaml: Added template rendering for tracing value
• Chart.yaml: Bumped chart version from 0.2.57 to 0.2.58
• README.md: Regenerated via helm-docs

References

• Gateway config-default.yaml: https://github.com/api7/api7-ee-3-gateway/blob/main/conf/config-default.yaml#L170
• Similar PR: feat: support more gateway config #245

Summary by CodeRabbit

• New Features

  • Added configurable tracing parameter to control request lifecycle tracing behavior. When enabled, provides comprehensive tracing across SSL/SNI, rewrite, access, filter, and logging phases. Default setting (disabled) limits OpenTelemetry to single-span collection per request.

• Chores

  • Chart version updated to 0.2.58.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 9003aad4-e99d-4a1c-b425-228cc4a2a138

📥 Commits

Reviewing files that changed from the base of the PR and between a73c426 and ee0cd7b.

📒 Files selected for processing (4)

• charts/gateway/Chart.yaml
• charts/gateway/README.md
• charts/gateway/templates/configmap.yaml
• charts/gateway/values.yaml

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📝 Walkthrough

Walkthrough

Adds configurable apisix.tracing parameter to the gateway Helm chart, allowing users to control request lifecycle tracing behavior. Updates chart version, adds parameter documentation, default value, and ConfigMap template rendering.

Changes

Cohort / File(s)	Summary
Chart Metadata charts/gateway/Chart.yaml	Bumped Helm chart version from 0.2.57 to 0.2.58.
Configuration & Documentation charts/gateway/values.yaml, charts/gateway/README.md, charts/gateway/templates/configmap.yaml	Added new apisix.tracing boolean parameter (default false) to Helm values, documented its behavior (comprehensive lifecycle tracing when enabled, single span per request when disabled), and integrated it into the APISIX ConfigMap template.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

Poem

🐰 A tracing toggle hops into the chart so fine,
Request lifecycles dance when enabled—a sign!
Version bumped and values set true,
APISIX now traces what requests do! ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'feat: support apisix.tracing configuration' clearly and concisely summarizes the main change: adding support for configurable apisix.tracing parameter in the Helm chart.
Linked Issues check	✅ Passed	The pull request fully implements the requirements from issue #269: adds apisix.tracing configuration parameter to values.yaml, integrates it into configmap.yaml template, and documents it in README.md.
Out of Scope Changes check	✅ Passed	All changes are directly related to implementing the apisix.tracing configuration feature; chart version bump is a standard practice and no unrelated modifications are present.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/support-apisix-tracing

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