home-server/deployments/monitoring/prometheus.yaml

---
apiVersion: v1
kind: Namespace
metadata:
  name: monitoring
---
apiVersion: source.toolkit.fluxcd.io/v1
kind: HelmRepository
metadata:
  name: prometheus-community
  namespace: flux-system
spec:
  url: https://prometheus-community.github.io/helm-charts
  interval: 1h
---
apiVersion: helm.toolkit.fluxcd.io/v2
kind: HelmRelease
metadata:
  name: prometheus-operator
  namespace: monitoring
spec:
  interval: 30m
  chart:
    spec:
      chart: kube-prometheus-stack
      version: 58.1.2
      sourceRef:
        kind: HelmRepository
        name: prometheus-community
        namespace: flux-system
  install:
    createNamespace: true
  upgrade:
    disableWait: true
  timeout: 5m
  values:
    prometheus:
      prometheusSpec:
        serviceMonitorSelectorNilUsesHelmValues: false
    # Optional: expose Prometheus/Grafana via NodePort, Ingress, etc.
    grafana:
      enabled: true
      service:
        type: ClusterIP
    alertmanager:
      enabled: true