fix linux node exporter

Author: MikeZappa87

clusterloader2/pkg/prometheus/manifests/exporters/node_exporter/linux-exporter-podmonitor.yaml

@@ -0,0 +1,19 @@
+apiVersion: monitoring.coreos.com/v1
+kind: PodMonitor
+metadata:
+  name: node-exporter
+  namespace: monitoring
+  labels:
+    app: node-exporter  # must match your Prometheus CR's `podMonitorSelector`
+spec:
+  selector:
+    matchLabels:
+      app: node-exporter
+  namespaceSelector:
+    matchNames:
+      - monitoring
+  podMetricsEndpoints:
+    - port: metrics
+      path: /metrics
+      interval: 5s
+

clusterloader2/pkg/prometheus/manifests/exporters/node_exporter/node-exporter-daemonset.yaml

@@ -0,0 +1,94 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: node-exporter
+  namespace: monitoring
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: node-exporter
+rules:
+  - apiGroups: [""]
+    resources:
+      - nodes
+      - nodes/proxy
+      - services
+      - endpoints
+      - pods
+    verbs: ["get", "list", "watch"]
+  - apiGroups: [""]
+    resources:
+      - nodes/metrics
+    verbs: ["get"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: node-exporter
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: node-exporter
+subjects:
+  - kind: ServiceAccount
+    name: node-exporter
+    namespace: monitoring
+---
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: node-exporter
+  namespace: monitoring
+  labels:
+    app: node-exporter
+spec:
+  selector:
+    matchLabels:
+      app: node-exporter
+  template:
+    metadata:
+      labels:
+        app: node-exporter
+    spec:
+      serviceAccountName: node-exporter
+      hostNetwork: true
+      hostPID: true
+      containers:
+        - name: node-exporter
+          image: quay.io/prometheus/node-exporter:latest
+          args:
+            - "--path.procfs=/host/proc"
+            - "--path.sysfs=/host/sys"
+            - "--collector.disable-defaults"
+            - "--collector.cpu"
+            - "--collector.meminfo"
+            - "--collector.loadavg"
+            - "--collector.stat"
+          ports:
+            - containerPort: 9100
+              hostPort: 9100
+              name: metrics
+          resources:
+            limits:
+              memory: 100Mi
+            requests:
+              cpu: 100m
+              memory: 50Mi
+          volumeMounts:
+            - name: proc
+              mountPath: /host/proc
+              readOnly: true
+            - name: sys
+              mountPath: /host/sys
+              readOnly: true
+      nodeSelector:
+        kubernetes.io/os: linux
+      volumes:
+        - name: proc
+          hostPath:
+            path: /proc
+        - name: sys
+          hostPath:
+            path: /sys
+      terminationGracePeriodSeconds: 30