Grafana

Grafana

Purpose

Grafana provides dashboards and visualization on top of the homelab’s Prometheus metrics. Runs as a single Deployment in the default namespace of the k3s cluster, fronted by Traefik.

Deployment

Item	Value
Namespace	default
Image	grafana/grafana:latest
Replicas	1 (strategy: Recreate)
Container port	3000
Resources	requests 50m/256Mi, limits 500m/512Mi
Storage	PVC grafana-data, 2Gi, storageClassName: local-path → /var/lib/grafana
Reloader	reloader.stakater.com/auto: "true"

Provisioning

Grafana is pre-provisioned via ConfigMaps mounted into the pod, rather than configured by hand through the UI on first boot:

• grafana-datasource-prometheus → /etc/grafana/provisioning/datasources (wires up the Prometheus datasource automatically)
• grafana-dashboard-provider → /etc/grafana/provisioning/dashboards
• grafana-dashboard-315 → /var/lib/grafana/dashboards (community dashboard ID 315, Node Exporter Full)

Ingress

Traefik IngressRoute, TLS via the shared local-example-com-tls wildcard cert:

• grafana.prod-k3s.iot-proxmox.net (middleware: default-headers)
• www.grafana.prod-k3s.iot-proxmox.net

Both route to the grafana ClusterIP Service on port 3000.