The current logic for determining if the OpenTelemetry SDK (OTEL) is enabled is not working as expected

[willianccs]

Problem

The current logic for determining if the OpenTelemetry SDK (OTEL) is enabled is not working as expected. Specifically, the following line of code:

dd-trace-js/packages/datadog-instrumentations/src/otel-sdk-trace.js

Lines 7 to 10 in 9794630

	const otelSdkEnabled = process.env.DD_TRACE_OTEL_ENABLED ||
	process.env.OTEL_SDK_DISABLED
	? !process.env.OTEL_SDK_DISABLED
	: undefined

Suggested Solution

To fix this issue, we need to explicitly check the values of the environment variables. Here is the corrected logic:

const otelSdkEnabled = process.env.DD_TRACE_OTEL_ENABLED === 'true' || (process.env.OTEL_SDK_DISABLED !== 'true' && process.env.OTEL_SDK_DISABLED !== undefined);

This should resolve the issue and ensure the logic works correctly without needing to explicitly set OTEL_SDK_DISABLED to false.