Grafana Alloy

Grafana Alloy is an open-source distribution of the OpenTelemetry Collector with built-in Prometheus pipelines. It collects and forwards metrics, logs, traces and profiles, serving as the telemetry agent in many Grafana-based setups while staying vendor-neutral.

Its main differentiators, per the README, are programmable pipelines configured with an expression-based syntax, support for dozens of OpenTelemetry Collector components alongside new Alloy-specific components, and a big tent philosophy under which it works with other vendors and open-source databases. Topics mention Loki and Prometheus. It is written in Go.

Alloy is licensed under Apache-2.0 and you run it yourself on hosts or in Kubernetes, sending data to Grafana Cloud or any compatible back end. It suits platform and SRE teams that want one configurable collector for all telemetry signals.