k8s_flux_infra/components/monitoring/controllers/base/kube-prometheus-stack.yaml

apiVersion: source.toolkit.fluxcd.io/v1
kind: HelmRepository
metadata:
    name: prometheus-community
    namespace: monitoring
spec:
    interval: 12h
    type: oci
    url: oci://ghcr.io/prometheus-community/charts
---
apiVersion: helm.toolkit.fluxcd.io/v2
kind: HelmRelease
metadata:
    name: kube-prometheus-stack
    namespace: monitoring
spec:
    serviceAccountName: flux
    interval: 1h
    chart:
        spec:
            version: 79.4.1 # {"$imagepolicy": "flux-system:kube-prometheus-stack:tag"}
            chart: kube-prometheus-stack
            sourceRef:
                kind: HelmRepository
                name: prometheus-community
            interval: 12h
    install:
        crds: Create
        timeout: 9m
    upgrade:
        crds: CreateReplace
        timeout: 9m
    driftDetection:
        mode: enabled
        ignore:
            - paths:
                - /metadata/annotations/prometheus-operator-validated
              target:
                kind: PrometheusRule
    valuesFrom:
        - kind: ConfigMap
          name: flux-kube-state-metrics-config
          valuesKey: kube-state-metrics-config.yaml
        - kind: Secret
          name: flux-grafana-auth-secret
          valuesKey: values.yaml
    values:
        alertmanager:
            enabled: false
        prometheus:
            prometheusSpec:
                retention: 12h
                resources:
                    requests:
                        cpu: 200m
                        memory: 200Mi
                podMonitorNamespaceSelector: {}
                podMonitorSelector:
                    matchLabels:
                        app.kubernetes.io/component: monitoring
        grafana:
            defaultDashboardsEnabled: false