refactor: Add kps ocirepositories

kubernetes/main/apps/observability/kube-prometheus-stack/app/helmrelease.yaml

@@ -5,16 +5,11 @@ kind: HelmRelease
 metadata:
   name: &app kube-prometheus-stack
 spec:
-  interval: 5m
-  timeout: 15m
-  chart:
-    spec:
-      chart: kube-prometheus-stack
-      version: 69.7.2
-      sourceRef:
-        kind: HelmRepository
-        name: prometheus-community-charts
-        namespace: flux-system
+  interval: 1h
+  chartRef:
+    kind: OCIRepository
+    name: kube-prometheus-stack
+    namespace: flux-system
   install:
     remediation:
       retries: 3

kubernetes/repositories/oci/kube-prometheus-stack.yaml

@@ -0,0 +1,15 @@
+---
+# yaml-language-server: $schema=https://kubernetes-schemas.pages.dev/source.toolkit.fluxcd.io/ocirepository_v1beta2.json
+apiVersion: source.toolkit.fluxcd.io/v1beta2
+kind: OCIRepository
+metadata:
+  name: kube-prometheus-stack
+  namespace: flux-system
+spec:
+  interval: 1h
+  layerSelector:
+    mediaType: application/vnd.cncf.helm.chart.content.v1.tar+gzip
+    operation: copy
+  ref:
+    tag: 69.7.2
+  url: oci://ghcr.io/prometheus-community/charts/kube-prometheus-stack

kubernetes/repositories/oci/kustomization.yaml

@@ -9,4 +9,5 @@ resources:
   - flux-instance.yaml
   - flux-operator.yaml
   - k8s-ycl.yaml
+  - kube-prometheus-stack.yaml
   - spegel.yaml