Prometheus

Erato provides a Prometheus endpoint based on metrics.rs.

What it exposes

• Tokio runtime metrics via tokio-metrics + metrics-rs integration
• erato_info gauge with labels:
  • version
  • environment
  • service
  • deployment_version

Configuration

Enable the integration in erato.toml:

[integrations.prometheus]
enabled = true
host = "127.0.0.1"
port = 3131

When enabled, Erato starts a dedicated listener and prints the metrics URL at startup:

http://<host>:<port>/metrics

integrations.prometheus.port must be different from http_port.

For all configuration fields, see Configuration Reference.