nodeExporter-networkPolicy.yaml

apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  labels:
    app.kubernetes.io/component: exporter
    app.kubernetes.io/name: node-exporter
    app.kubernetes.io/part-of: kube-prometheus
    app.kubernetes.io/version: 1.8.2
  name: node-exporter
  namespace: monitoring
spec:
  egress:
  - {}
  ingress:
  - from:
    - podSelector:
        matchLabels:
          app.kubernetes.io/name: prometheus
    ports:
    - port: 9100
      protocol: TCP
  podSelector:
    matchLabels:
      app.kubernetes.io/component: exporter
      app.kubernetes.io/name: node-exporter
      app.kubernetes.io/part-of: kube-prometheus
  policyTypes:
  - Egress
  - Ingress