add prometheus component setup

components/prometheus/namespace.yaml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: prometheus-system

components/prometheus/prometheus-community_helmrepository.yaml

@@ -0,0 +1,10 @@
+---
+apiVersion: source.toolkit.fluxcd.io/v1beta1
+kind: HelmRepository
+metadata:
+  name: prometheus-community
+  namespace: prometheus-system
+spec:
+  interval: 20m0s
+  url: https://prometheus-community.github.io/helm-charts
+

components/prometheus/prometheus-stack.yaml

@@ -0,0 +1,16 @@
+---
+apiVersion: helm.toolkit.fluxcd.io/v2beta1
+kind: HelmRelease
+metadata:
+  name: prometheus-stack
+  namespace: prometheus-system
+spec:
+  chart:
+    spec:
+      chart: prometheus-stack
+      sourceRef:
+        kind: HelmRepository
+        name: prometheus-community
+  interval: 20m0s
+
+