Consider adding an integration for grafana/otel-lgtm

[paulomorgado]

Aspire issue link

No response

Overview

Grafana provides a container image with preconfigured OpenTelemetry backend based on the OpenTelemetry Collector, Prometheus, Loki, Tempo, and Grafana for development and testing purposes.

The OpenTelemetry Collector receives OpenTelemetry signals on ports 4317 (gRPC) and 4318 (HTTP). It forwards metrics to a Prometheus database, spans to a Tempo database, and logs to a Loki database. Grafana has all three databases configured as data sources and exposes its Web UI on port 3000.

It would be nice to have such integration.

Usage example

builder.AddGrafanaOtelLgtm(...);

Additional context

This should share most of the logic of the OpenTelemetryCollector integration.

Help us help you

Yes, I'd like to be assigned to work on this item

[paulomorgado]

@martincostello, would you care to share your thoughts?

[paulomorgado]

Asked Copilot to bootstrap this based on the OpenTelemetryCollector integration: #1159

[martincostello]

This seems reasonable to me.

The only possible concern I have is that as we currently version as 0.x.y (so, not stable v1), this creates a sort of pseudo-public API contract on the extensibility hooks and environment variables we expose to the user in the base image, so if we made any breaking changes there we'd cause issues for any strongly-typed methods over them that might be added. That is however mitigated by the fact the user could override the container tag until any breaking changes were addressed and that the default tag is pinned to a specific version and not latest.

[paulomorgado]

We could have a preview integration.

As an example, Aspire.Hosting.Keycloak is still in preview.

[aaronpowell]

I think we have something in the community toolkit that ships as preview. Anyway, we have all the required stuff in MS Build to publish preview packages on release