add node exporter

kubernetes/apps/observability/kustomization.yaml

@@ -6,6 +6,7 @@ resources:
   # Pre Flux-Kustomizations
   - ./namespace.yaml
   # Flux-Kustomizations
+  - ./node-exporter/ks.yaml
   - ./gatus/ks.yaml
   # - ./smartctl-exporter/ks.yaml
   # - ./victoria-metrics/ks.yaml

kubernetes/apps/observability/node-exporter/app/helmrelease.yaml

@@ -0,0 +1,57 @@
+---
+# yaml-language-server: $schema=https://ks.hsn.dev/helm.toolkit.fluxcd.io/helmrelease_v2.json
+apiVersion: helm.toolkit.fluxcd.io/v2
+kind: HelmRelease
+metadata:
+  name: node-exporter
+spec:
+  interval: 30m
+  chart:
+    spec:
+      chart: prometheus-node-exporter
+      version: 4.38.0
+      sourceRef:
+        kind: HelmRepository
+        name: prometheus-community
+        namespace: flux-system
+      interval: 30m
+  values:
+    fullnameOverride: node-exporter
+
+    image:
+      registry: quay.io
+      repository: prometheus/node-exporter
+
+    prometheus:
+      monitor:
+        enabled: true
+        jobLabel: app.kubernetes.io/instance
+
+        relabelings:
+          - action: replace
+            regex: (.*)
+            replacement: $1
+            sourceLabels:
+              - __meta_kubernetes_pod_node_name
+            targetLabel: kubernetes_node
+          - action: replace
+            regex: (.*)
+            replacement: $1
+            sourceLabels:
+              - __meta_kubernetes_pod_node_name
+            targetLabel: nodename
+          - action: replace
+            regex: (.*)
+            replacement: $1.bjw-s.internal:9100
+            sourceLabels:
+              - kubernetes_node
+            targetLabel: instance
+
+    resources:
+      requests:
+        cpu: 23m
+        memory: 64M
+      limits:
+        memory: 64M
+
+    hostNetwork: false

kubernetes/apps/observability/node-exporter/app/kustomization.yaml

@@ -0,0 +1,6 @@
+---
+# yaml-language-server: $schema=https://json.schemastore.org/kustomization
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - ./helmrelease.yaml

kubernetes/apps/observability/node-exporter/ks.yaml

@@ -0,0 +1,19 @@
+---
+# yaml-language-server: $schema=https://raw.githubusercontent.com/fluxcd-community/flux2-schemas/main/kustomization-kustomize-v1.json
+apiVersion: kustomize.toolkit.fluxcd.io/v1
+kind: Kustomization
+metadata:
+  name: &app node-exporter
+  namespace: flux-system
+spec:
+  targetNamespace: observability
+  commonMetadata:
+    labels:
+      app.kubernetes.io/name: *app
+  interval: 10m
+  path: "./kubernetes/apps/observability/node-exporter/app"
+  prune: true
+  sourceRef:
+    kind: GitRepository
+    name: homelab
+  wait: false