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pez-docs/workloads/monitoring/README.md
Rasmus Wejlgaard 4508f740e5 Update documentation for current setup 
- Update locations/london.md with current server state (london-a FreeBSD monitoring, london-b Ubuntu/ZFS storage, london-c offline)
- Update locations/copenhagen.md with current servers (copenhagen-a Minecraft+WoW, copenhagen-b offline, copenhagen-c general)
- Add locations/helsinki.md documenting helsinki-a (Caddy gateway, Authelia, Bitwarden, LDAP) and nuremberg-a (mail/poste.io)
- Add workloads/jellyfin, navidrome, nextcloud, arr-stack, minecraft, wow, mail, monitoring, bitwarden, authelia
- Add principles/zfs documenting the london-b ZFS pool setup
- Add principles/caddy documenting the reverse proxy setup on helsinki-a
- Update introduction.md to mention all locations
2026-03-04 09:41:57 +00:00

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Monitoring

What

Prometheus and Grafana for metrics collection and visualisation across the fleet.

Where

Runs on london-a (FreeBSD 14.3). london-a is a dedicated monitoring host — very lightly loaded, disk at 6%.

Service URL Port
Grafana grafana.pez.sh 3000
Prometheus prometheus.pez.sh 9090

Both are behind Authelia.

Scrape Targets

Prometheus scrapes metrics from exporters running across the fleet. All connections are made over Tailscale.

Exporters in use:

  • smartctl exporter — disk health metrics (london-b)
  • prom-plex-exporter — Plex metrics (london-b)
  • Node exporter on various hosts

Dashboards

Grafana dashboards cover:

  • Server health (CPU, memory, disk, network)
  • ZFS pool status
  • Disk SMART data
  • Plex activity

Status Page

status.pez.sh is a separate lightweight status page that pulls availability data from Prometheus. 90-day uptime history. Source: RWejlgaard/pez-status.