honkoma/docs/API/prometheus.md

Prometheus Metrics

Pleroma includes support for exporting metrics via the prometheus_ex library.

Config example:

config :prometheus, Pleroma.Web.Endpoint.MetricsExporter,
  enabled: true,
  auth: {:basic, "myusername", "mypassword"},
  ip_whitelist: ["127.0.0.1"],
  path: "/api/pleroma/app_metrics",
  format: :text

• enabled (Pleroma extension) enables the endpoint
• ip_whitelist (Pleroma extension) could be used to restrict access only to specified IPs
• auth sets the authentication (false for no auth; configurable to HTTP Basic Auth, see prometheus-plugs documentation)
• format sets the output format (:text or :protobuf)
• path sets the path to app metrics page

/api/pleroma/app_metrics

Exports Prometheus application metrics

• Method: GET
• Authentication: not required by default (see configuration options above)
• Params: none
• Response: text

Grafana

Config example

The following is a config example to use with Grafana

  - job_name: 'beam'
    metrics_path: /api/pleroma/app_metrics
    scheme: https
    static_configs:
    - targets: ['pleroma.soykaf.com']