OTEL plugin ignores configured header type for incoming requests

[aetimmes]

Is there an existing issue for this?

• I have searched the existing issues

Kong version ($ kong version)

Kong 3.5.0.0-ent

Current Behavior

The opentelemetry plugin ignores the configured header preference on incoming requests and emits warning logs whenever a request with mismatching headers is received.

Expected Behavior

The plugin should only ingest trace headers of the configured type and silently ignore incoming request headers of all other trace types.

Steps To Reproduce

Configure the opentelemetry plugin with a specific type (eg header_type: datadog).

Anything else?

No response

[ADD-SP]

Thanks @aetimmes, this issue is already tracked internally (KAG-3568).

[chronolaw]

@ADD-SP, could you add the ticket number here? thanks.

[samugi]

this is now supported with #12670