apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: node-exporter
  namespace: monitoring
  labels:
    app: node-exporter
spec:
  selector:
    matchLabels:
      app: node-exporter
  updateStrategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 1
  template:
    metadata:
      labels:
        app: node-exporter
    spec:
      serviceAccountName: node-exporter
      securityContext:
        runAsNonRoot: true
        runAsUser: 65534
      containers:
        - name: node-exporter
          image: quay.io/prometheus/node-exporter:v1.7.0
          imagePullPolicy: IfNotPresent
          args:
            - --path.procfs=/host/proc
            - --path.sysfs=/host/sys
            - --web.listen-address=0.0.0.0:9100
            - --collector.ethtool
          ports:
            - name: metrics
              containerPort: 9100
              protocol: TCP
          livenessProbe:
            httpGet:
              path: /
              port: 9100
          readinessProbe:
            httpGet:
              path: /
              port: 9100
          resources:
            limits:
              cpu: 200m
              memory: 50Mi
            requests:
              cpu: 100m
              memory: 30Mi
          volumeMounts:
            - name: proc
              mountPath: /host/proc
              readOnly: true
            - name: sys
              mountPath: /host/sys
              readOnly: true
      hostNetwork: true
      hostPID: true
      tolerations:
        - effect: NoSchedule
          operator: Exists
      volumes:
        - name: proc
          hostPath:
            path: /proc
        - name: sys
          hostPath:
            path: /sys
