feat(otel): allow envFrom in otel collector deployment configuration.

[thober35]

• Allow Users to define existing secrets or configmaps for their otelCollector via envFrom

Summary by CodeRabbit

• New Features
  • Added optional configuration to inject additional environment variables from ConfigMaps or Secrets into the OpenTelemetry Collector component. Users can now specify custom environment sources via Helm values configuration.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: d5af7ca8-32e8-4c86-bbe2-47c2a7c9c4fb

📥 Commits

Reviewing files that changed from the base of the PR and between 4dc2148 and 72a7f7e.

📒 Files selected for processing (2)

• charts/signoz/templates/otel-collector/deployment.yaml
• charts/signoz/values.yaml

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📝 Walkthrough

Walkthrough

The changes add support for injecting additional environment sources into the otel-collector container via a new additionalEnvFrom configuration field in the Helm chart values, with corresponding template logic to apply these settings conditionally.

Changes

Cohort / File(s)	Summary
Helm Configuration Addition charts/signoz/templates/otel-collector/deployment.yaml, charts/signoz/values.yaml	Introduces optional otelCollector.additionalEnvFrom field allowing users to specify additional environment variable sources (e.g., ConfigMaps, Secrets) for the otel-collector container. Template conditionally renders the envFrom block when configured.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Poem

🐰 A carrot-cutter's delight, we say,
New configs bloom in the envFrom way,
Where Secrets and Maps dance in harmony bright,
Our collector now gathers them all, day and night! 🌱✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'feat(otel): allow envFrom in otel collector deployment configuration' directly and clearly describes the main change: adding envFrom support to the otel collector configuration.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

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• Create PR with unit tests
• Post copyable unit tests in a comment

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[thober35]

Hello! Is somebody able to review this PR? Thank you!