add vertical-pod-autoscaler to kube-system apps

Author: piontec

flux-modules/kube-system/kustomization.yaml

@@ -8,3 +8,5 @@ resources:
   - ingress-nginx-secgroup-oidc-cm.yaml
   - storageclass.yaml
   - ../kube-system-extra/kustomization-kube-system-extra.yaml
+  - vpa-helmrepo.yaml
+  - vpa-helmrelease.yaml

flux-modules/kube-system/vpa-helmrelease.yaml

@@ -0,0 +1,37 @@
+apiVersion: helm.toolkit.fluxcd.io/v2
+kind: HelmRelease
+metadata:
+  name: vpa
+  namespace: kube-system
+spec:
+  interval: 1h
+  chart:
+    spec:
+      chart: vertical-pod-autoscaler
+      version: ">=9.9.0"
+      sourceRef:
+        kind: HelmRepository
+        name: vpa
+        namespace: kube-system
+  values:
+    admissionController:
+      metrics:
+        serviceMonitor:
+          enabled: true
+    recommender:
+      extraArgs:
+        recommendation-lower-bound-cpu-percentile: "0.7"
+        recommendation-lower-bound-memory-percentile: "0.7"
+        pod-recommendation-min-cpu-millicores: 25
+        pod-recommendation-min-memory-mb: 25
+        recommender-name: performance
+        memory-saver: true
+      metrics:
+        serviceMonitor:
+          enabled: true
+    updater:
+      extraArgs:
+        min-replicas: 1
+      metrics:
+        serviceMonitor:
+          enabled: true

flux-modules/kube-system/vpa-helmrepo.yaml

@@ -0,0 +1,8 @@
+apiVersion: source.toolkit.fluxcd.io/v1
+kind: HelmRepository
+metadata:
+  name: vpa
+  namespace: kube-system
+spec:
+  interval: 1h
+  url: https://cowboysysop.github.io/charts/