Just incase; put chart into chart

chart/templates/monitoring-prometheus.yaml

@@ -0,0 +1,40 @@
+---
+apiVersion: source.toolkit.fluxcd.io/v1
+kind: HelmRepository
+metadata:
+  name: prometheus-community
+  namespace: {{ .Release.Namespace }}
+spec:
+  url: https://prometheus-community.github.io/helm-charts
+  interval: 1h
+---
+apiVersion: helm.toolkit.fluxcd.io/v2
+kind: HelmRelease
+metadata:
+  name: prometheus-operator
+  namespace: {{ .Release.Namespace }}
+spec:
+  interval: 30m
+  chart:
+    spec:
+      chart: kube-prometheus-stack
+      version: 58.1.2
+      sourceRef:
+        kind: HelmRepository
+        name: prometheus-community
+        namespace: {{ .Release.Namespace }}
+  install:
+    createNamespace: false
+  upgrade:
+    disableWait: true
+  timeout: 5m
+  values:
+    prometheus:
+      prometheusSpec:
+        serviceMonitorSelectorNilUsesHelmValues: false
+    # Optional: expose Prometheus/Grafana via NodePort, Ingress, etc.
+    grafana:
+      enabled: false
+    alertmanager:
+      enabled: true
+