add infra app prometheus-exporters

infrastructures/prometheus-exporters/env/k3s-cluster/config.json

@@ -0,0 +1,12 @@
+{
+  "appName": "prometheus-exporters",
+  "userGivenName": "prometheus-exporters",
+  "namespace": "prometheus-exporters",
+  "destNamespace": "prometheus-exporters",
+  "destServer": "https://kubernetes.default.svc",
+  "srcPath": "infrastructures/prometheus-exporters/env/k3s-cluster",
+  "srcRepoURL": "https://github.com/3dwardch3ng/home-cluster-ops.git",
+  "srcTargetRevision": "",
+  "labels": null,
+  "annotations": null
+}

infrastructures/prometheus-exporters/env/k3s-cluster/kustomization.yaml

@@ -0,0 +1,4 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - ./node-exporter.yaml

infrastructures/prometheus-exporters/env/k3s-cluster/node-exporter.yaml

@@ -0,0 +1,44 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: prometheus-node-exporter
+  namespace: prometheus
+  labels:
+    app: prometheus-node-exporter
+spec:
+  replicas: 4
+  selector:
+    matchLabels:
+      app: prometheus-node-exporter
+  template:
+    metadata:
+      labels:
+        app: prometheus-node-exporter
+    spec:
+      hostNetwork: true
+      hostPID: true
+      hostIPC: true
+      topologySpreadConstraints:
+        - maxSkew: 1
+          topologyKey: kubernetes.io/hostname
+          whenUnsatisfiable: DoNotSchedule
+          labelSelector:
+            matchLabels:
+              app: prometheus-node-exporter
+      containers:
+        - name: prometheus-node-exporter
+          image: prom/node-exporter
+          args:
+            - "--path.rootfs=/host"
+          volumeMounts:
+            - name: node-volume
+              mountPath: /host
+              readOnly: true
+              mountPropagation: HostToContainer
+          securityContext:
+            privileged: true
+      volumes:
+        - name: node-volume
+          hostPath:
+            path: /
+            type: Directory