Feature Request: Support Pushing Metrics to OpenTelemetry Collector

[hrithikesh026]

🧩 Feature Request: Support Pushing Metrics to OpenTelemetry Collector

Summary

It would be valuable for the connector-service to support emitting and exporting metrics to an OpenTelemetry (OTel) Collector, enabling better observability and integration with existing monitoring pipelines.

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Motivation

Adding OTel support would provide the following benefits:

• Unified observability stack with other components of the system
• Standardized metric formats (OTLP)
• Easy forwarding of metrics to Prometheus, Grafana, or third-party observability platforms (e.g., Datadog, New Relic)
• Supports cloud-native practices and improves debuggability

This is especially useful in environments where metrics collection needs to be centralized and scalable.

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Proposed Solution

Integrate OpenTelemetry metrics support using crates such as:

• opentelemetry
• opentelemetry-otlp
• (Optional) metrics with an OpenTelemetry bridge

Example Initialization (OTLP Exporter):

use opentelemetry::sdk::metrics::controllers;
use opentelemetry::sdk::metrics::processors;
use opentelemetry::sdk::export::metrics::aggregation;
use opentelemetry_otlp::WithExportConfig;

let exporter = opentelemetry_otlp::new_exporter()
    .tonic()
    .with_endpoint("http://otel-collector:4317");

let meter_provider = controllers::basic(processors::factory(
        aggregation::cumulative_temporality_selector(),
        opentelemetry::sdk::metrics::selectors::simple::Selector::Exact,
    ))
    .with_exporter(exporter)
    .build();

opentelemetry::global::set_meter_provider(meter_provider);

[ssenthilnathan3]

Hey, @hrithikesh026 ! 👋

I know this is early but I’d love to take this up. I have experience with Rust and observability tooling, and I'm familiar with the opentelemetry and opentelemetry-otlp crates. I can work on integrating metric export to the collector, and can include config-driven endpoint setup.

Let me know if there's any additional context or direction you'd like me to follow before I begin!