how to deploy nodeExporter on kubernetes1.19¶

cat node-exporter-ds.yaml

apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: node-exporter
  labels:
    app: node-exporter
spec:
  selector:
    matchLabels:
      app: node-exporter
  template:
    metadata:
      labels:
        app: node-exporter
      annotations:
         prometheus.io/scrape: "true"
         prometheus.io/port: "9100"
    spec:
      hostPID: true
      hostIPC: true
      hostNetwork: true
      containers:
        - ports:
            - containerPort: 9100
              protocol: TCP
          securityContext:
            privileged: true
          image: prom/node-exporter
          args:
            - --path.procfs
            - /host/proc
            - --path.sysfs
            - /host/sys
            - --collector.filesystem.ignored-mount-points
            - '"^/(sys|proc|dev|host|etc)($|/)"'
          name: node-exporter
          volumeMounts:
            - name: dev
              mountPath: /host/dev
            - name: proc
              mountPath: /host/proc
            - name: sys
              mountPath: /host/sys
            - name: rootfs
              mountPath: /rootfs
      volumes:
        - name: proc
          hostPath:
            path: /proc
        - name: dev
          hostPath:
            path: /dev
        - name: sys
          hostPath:
            path: /sys
        - name: rootfs
          hostPath:
            path: /

cat node_exporter.service

[Unit]
Description=Node Exporter
Wants=network-online.target
After=network-online.target

[Service]
User=root
Group=root
Type=simple
ExecStart=/usr/bin/node_exporter

[Install]
WantedBy=multi-user.target

cat prometheus.yaml

- job_name: 'nodes'

  scrape_interval: 10s

  static_configs:
    - targets: ['192.168.0.202:9100']
    - targets: ['192.168.0.203:9100']
    - targets: ['192.168.0.204:9100']
    - targets: ['192.168.0.205:9100']
    - targets: ['192.168.0.206:9100']
    - targets: ['192.168.0.207:9100']