[ericcurtin]

Summary

Add server.extraEnv so the gateway container can take extra env vars, such as OTEL_*.

Related Issue

Closes #4553

Changes

• Add server.extraEnv to the gateway pod template.
• Add unit tests for the StatefulSet and Deployment.
• Document it in the chart README and gateway configuration docs.

Release Notes

Helm: server.extraEnv adds env vars, including Secret refs, to the gateway container.

Testing

• Checks appropriate to the affected code and behavior pass (helm unittest, helm lint, mise run helm:docs:check, mise run docs)
• Unit tests added/updated (if applicable)
• E2E tests added/updated (if applicable)

Checklist

• Follows Conventional Commits
• Commits are signed off (DCO)
• Architecture docs updated (if applicable)

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[ericcurtin]

@krishicks @matthewgrossman could you please triage #4553 so the issue check can pass? PTAL, and /ok to test e895b2f2bc81bd8ec5d22feafec5d5efb796e09e if it looks good. Thank you!

[krishicks]

/ok to test e895b2f

[ericcurtin]

@krishicks @TaylorMutch thank you for the approval. PTAL when you get a chance to add this to the merge queue.