Standardize OpenTelemetry environment variable naming

[Daniel-Vaz]

Description

This PR addresses the OpenTelemetry configuration inconsistency reported in #1273 by standardizing environment variable naming to follow the official OpenTelemetry specification.

Changes Made

kagent-core

• Updated _utils.py to check standard OpenTelemetry environment variables first:
  • OTEL_EXPORTER_OTLP_TRACES_ENDPOINT (standard) → OTEL_TRACING_EXPORTER_OTLP_ENDPOINT (legacy fallback)
  • OTEL_EXPORTER_OTLP_LOGS_ENDPOINT (standard) → OTEL_LOGGING_EXPORTER_OTLP_ENDPOINT (legacy fallback)
• Maintained backward compatibility with legacy variable names
• Both now fall back to OTEL_EXPORTER_OTLP_ENDPOINT as per OpenTelemetry spec

Helm

• Controller ConfigMap: Implemented smart endpoint configuration
  • Uses OTEL_EXPORTER_OTLP_ENDPOINT when tracing and logging endpoints are identical
  • Uses signal-specific endpoints (OTEL_EXPORTER_OTLP_TRACES_ENDPOINT / OTEL_EXPORTER_OTLP_LOGS_ENDPOINT) when different
• QueryDoc ConfigMap: Added OTEL_EXPORTER_OTLP_TRACES_ENDPOINT for consistency

[Copilot]

Pull request overview

This PR standardizes OpenTelemetry OTLP endpoint environment variable naming across kagent-core and Helm charts to align with the official OTel spec, while retaining legacy fallbacks in the Python runtime to address the configuration mismatch reported in #1273.

Changes:

• Updated Python OTel configuration to prefer signal-specific standard env vars (OTEL_EXPORTER_OTLP_{TRACES,LOGS}_ENDPOINT) with legacy and general fallback.
• Updated controller Helm ConfigMap to use a unified endpoint when trace/log endpoints match, otherwise emit signal-specific endpoints.
• Updated QueryDoc Helm ConfigMap to include OTEL_EXPORTER_OTLP_TRACES_ENDPOINT for consistency.

Reviewed changes

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

File	Description
python/packages/kagent-core/src/kagent/core/tracing/_utils.py	Prefer standard OTel env vars for trace/log endpoints with backward-compatible fallbacks.
helm/kagent/templates/controller-configmap.yaml	Emit unified vs signal-specific OTLP endpoint env vars based on whether trace/log endpoints are equal.
helm/tools/querydoc/templates/configmap.yaml	Add OTEL_EXPORTER_OTLP_TRACES_ENDPOINT alongside existing OTLP env vars.

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[Copilot]

Pull request overview

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

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[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.

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