hive-metric

A tiny CLI that pushes a single labeled metric to the OTEL collector, then exits. Built on the OpenTelemetry Rust SDK with the OTLP HTTP/JSON exporter.

When to use it

For emitting a one-off counter or gauge from a shell script or systemd unit without embedding an OTEL SDK in the caller — the harness and various hive scripts use it to record per-agent metrics.

Usage

hive-metric <name> <value> [--type counter|gauge] [--labels key=value ...]

Standard OTEL environment variables are read automatically by the SDK:

• OTEL_EXPORTER_OTLP_ENDPOINT — collector URL (required)
• OTEL_EXPORTER_OTLP_HEADERS — auth headers (Key=Value,...)
• OTEL_RESOURCE_ATTRIBUTES — resource labels (k=v,...)

The harness populates all of these per-agent when services.hyperhive.otel.enable = true. See docs/observability.md for the collector setup and the metrics hyperhive exports.