migrate ciVisibilityEnabled

[mtoffl01]

What does this PR do?

Migrates tracer to using Config.ciVisibilityEnabled instead of its local ciVisibilityEnabled

Motivation

Go Config Revamp

Reviewer's Checklist

• Changed code has unit tests for its functionality at or near 100% coverage.
• System-Tests covering this feature have been added and enabled with the va.b.c-dev version tag.
• There is a benchmark for any new code, or changes to existing code.
• If this interacts with the agent in a new way, a system test has been added.
• New code is free of linting errors. You can check this by running ./scripts/lint.sh locally.
• Add an appropriate team label so this PR gets put in the right place for the release notes.
• Non-trivial go.mod changes, e.g. adding new modules, are reviewed by @DataDog/dd-trace-go-guild.

Unsure? Have a question? Request a review!

[mtoffl01]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• feat(config): Config Visibility - report telemetry about all config sources #4247
• migrate ciVisibilityEnabled #4293 👈 (View in Graphite)
• chore(config): migrate serviceName #4292
• chore(config): migrate retryInterval #4240
• chore(config): migrate serviceMappings #4281
• chore(config): migrate featureFlags #4280
• chore(config): migrate env #4279
• chore(config): migrate version #4278
• chore(config): migrate hostname #4271
• chore(config): migrate logDirectory #4267
• chore(config): migrate statsComputationEnabled #4265
• chore(config): migrate noDebugStack #4264
• chore(config): migrate spanTimeout #4263
• chore(config): migrate debugAbandonedSpans #4262
• chore(config): migrate dynamicInstrumentationEnabled #4261
• chore(config): migrate partialFlushMinSpans #4260
• chore(config): migrate partialFlushEnabled #4259
• chore(config): migrate first chunk tracer configs #4258
• chore(config): migrate globalSampleRate and introduce configProvider.getFloatWithValidator #4257
• chore(config): migrate logToStdout and isLambdaFunction #4256
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-12-19 16:31:26

Comparing candidate commit 931a6c9 in PR branch 12-17-migrate_civisibilityenabled with baseline commit 5d9df19 in branch 12-17-migrate_servicename.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 8 metrics, 0 unstable metrics.

[codecov]

Codecov Report

❌ Patch coverage is 14.28571% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 58.44%. Comparing base (5d9df19) to head (931a6c9).

Files with missing lines	Patch %	Lines
internal/config/config.go	10.00%	9 Missing ⚠️
ddtrace/tracer/tracer.go	0.00%	0 Missing and 2 partials ⚠️
ddtrace/tracer/option.go	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
ddtrace/tracer/stats.go	98.46% <100.00%> (ø)
ddtrace/tracer/option.go	83.74% <0.00%> (+0.13%)	⬆️
ddtrace/tracer/tracer.go	86.40% <0.00%> (ø)
internal/config/config.go	16.91% <10.00%> (+0.39%)	⬆️

... and 64 files with indirect coverage changes

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[datadog-datadog-prod-us1]

✅ Tests

🎉 All green!

❄️ No new flaky tests detected
🧪 All tests passed

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