Enable opentelemetry sink to send data to to all available endpoints

A note for the community

Use Cases

Right now when you specify opentelemetry endpoint URL, sink supports only concrete endpoint type (e.g. /logs)
This would be fine if there'd be grpc support, but for HTTP protocol it would be desirable to have option to support base otlp endpoint and send data to <BASE>/logs by default
Otherwise if user needs to propagate metrics and logs, he is expected to declare sink multiple times

Attempted Solutions

This is not a bug, but rather a suggestion.
Right now user is expected to declare separate OTLP sink for every supported type of event (i.e. logs/metrics)

Proposal

1. Change interface to support base endpoint
2. Introduce new optional parameters:
   • protocol.uri_suffix_logs with default value /logs
   • protocol.uri_suffix_metrics with default value /metrics
   • protocol.uri_suffix_traces with default value `/traces

References

No response

Version

vector 0.57.0 (x86_64-unknown-linux-musl 8832452 2026-07-14 20:58:30.491174540)

Start by locating the OpenTelemetry sink and its protocol endpoint configuration, then trace how logs, metrics, and traces currently choose their endpoint paths. Implement support for a base OTLP endpoint and the proposed protocol.uri_suffix_logs, protocol.uri_suffix_metrics, and protocol.uri_suffix_traces options, with the documented defaults. Done means one sink can send each supported event type to its corresponding endpoint without separate sink declarations.