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Node Exporter on Kubernetes

A DaemonSet that runs Prometheus Node Exporter on every node, including control-plane nodes, with a Service Prometheus discovers automatically.

Customize names, versions →

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:
      hostNetwork: true
      hostPID: true
      securityContext:
        runAsNonRoot: true
        runAsUser: 65534
      tolerations:
        - operator: Exists
      containers:
        - name: node-exporter
          image: prom/node-exporter:v1.9.1
          args:
            - --path.procfs=/host/proc
            - --path.sysfs=/host/sys
            - --path.rootfs=/host/root
            - --collector.filesystem.mount-points-exclude=^/(dev|proc|sys|var/lib/docker/.+|var/lib/kubelet/.+)($|/)
          ports:
            - name: metrics
              containerPort: 9100
          resources:
            requests:
              cpu: 50m
              memory: 64Mi
            limits:
              memory: 128Mi
          volumeMounts:
            - name: proc
              mountPath: /host/proc
              readOnly: true
            - name: sys
              mountPath: /host/sys
              readOnly: true
            - name: root
              mountPath: /host/root
              mountPropagation: HostToContainer
              readOnly: true
      volumes:
        - name: proc
          hostPath:
            path: /proc
        - name: sys
          hostPath:
            path: /sys
        - name: root
          hostPath:
            path: /
---
apiVersion: v1
kind: Service
metadata:
  name: node-exporter
  namespace: monitoring
  annotations:
    prometheus.io/scrape: "true"
    prometheus.io/port: "9100"
spec:
  clusterIP: None
  selector:
    app: node-exporter
  ports:
    - name: metrics
      port: 9100
      targetPort: metrics

How to use it

kubectl create namespace monitoring --dry-run=client -o yaml | kubectl apply -f -
kubectl apply -f node-exporter.yaml
kubectl -n monitoring get pods -w

• The Service carries prometheus.io/scrape annotations, so the Prometheus template on this site picks it up with no extra config.

Prefer Docker Compose? See the Node Exporter Docker Compose version.