infra/modules/clan/prometheus/README.md

Prometheus

Monitoring over the Yggdrasil network. Requires the yggdrasil clan service on every machine in the instance.

Roles:

• server: runs Prometheus and Alertmanager, scraping every nodes machine by its Yggdrasil address. Optional matrix-alertmanager forwards alerts to Matrix rooms; the bot token and webhook secret are generated as clan vars.
• nodes: enables the services.prometheus.exporters listed in exporters (with openFirewall) so the server can harvest them.