apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  labels:
    app: nginx-ingress
    release: prometheus-operator # required by Prometheus CRD
  name: nginx-ingress
  namespace: kube-system
spec:
  endpoints:
  - interval: 15s
    port: metrics
  jobLabel: app
  selector:
    matchExpressions:
    - key: app
      operator: In
      values:
      - nginx-ingress
    - key: component
      operator: In
      values:
      - controller