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homelab_prometheus
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homelab_prometheus/README.md

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Prometheus homelab monitoring stack

Server components:

  • Prometheus
  • Grafana
  • Grafana Loki
  • Prometheus
  • Prometheus-snmp-exporter
  • Grafana-matrix-forwarder

Configured client components:

  • Promtail
  • Node exporter

Todo:

  • Split nixos config into several files
  • Replace grafana-matrix-forwarder with something sensible
  • Move secrets

Install

  • Copy/symlink var_prometheus to /var/prometheus
  • Create the file /var/prometheus/GRAFANASECRETS (If using matrix)
  • Move prometheus.nix somewhere sensible and include it in your configuration.nix
  • Enable nginx in your configuration

Forwarding alerts to matrix

Grafana prefers to push alerts using webhooks. Matrix does not have builtin-support for this. I want to move to Matrix-Webhook, but for now I am using Grafana to matrix forwarder.

Create the file /var/prometheus/GRAFANASECRETS and populate it with MATRIX_USER, MATRIX_PASSWORD and MATRIX_HOMESERVER. Note that these "secrets" will be visible in your nix store and even in your systemd service.