Using Fluent Bit on Windows to ship event logs to VictoriaLogs

Wed, 14 Jan 2026 23:30:00 +0000

Fluent Bit is designed solely as a low-overhead forwarding agent, primarily for logs (though it does have support for metrics as well), and has a wide ecosystem of “input” and “output” plugins that permit it to be used to collect logs or metrics from a wide variety of things, then ship said logs or metrics to a wide variety of data stores (e.g., in our case, it’ll ship via a web request POSTing events to VictoriaLogs).

Using Grafana Alloy on Windows to export (push) metrics (from Prometheus) and logs (from Loki)

Sun, 29 Jun 2025 19:30:00 +0000

Grafana Alloy is a multi-use exporter that we can run on our hosts to expose metrics for Prometheus. It also does other stuff, like send logs to Loki. It’s got a lot of features - you can read more it at grafana.com/docs.

Essentially, Grafana Alloy is an Open Telemetry-compatible collector that serves as a unified telemetry agent for popular services like Loki and Prometheus.

Some relevant points about Alloy:

We can replace the Prometheus Windows Exporter with Alloy, as Alloy for Windows has the Prometheus Windows Exporter built in.
We can use Alloy as a collector/forwarder to push metrics to Prometheus (rather than the default pull) which may be desirable, depending on your specific environment and firewalling
Grafana Alloy replaced the older Grafana Agent.
Alloy allows us collect and push logs to Loki in addition to collecting and pushing metrics to Prometheus.
Alloy has a considerable memory footprint compared to the much leaner Windows Exporter, but is necessary if you would like to push metrics to Prometheus. I’ve noticed Alloy consuming an order of magnitude (20x, in this case) more memory than the standalone Exporter (~370 mb vs ~20 mb).

Installing Alloy on Windows

There is not yet a Winget package for Grafana Alloy (thought there was, but couldn’t find it). You can download and (silently) install it with the following PowerShell:

Observability on wporter.org

Using Fluent Bit on Windows to ship event logs to VictoriaLogs

Using Grafana Alloy on Windows to export (push) metrics (from Prometheus) and logs (from Loki)

Installing Alloy on Windows