#kubectl get servicemonitor nginx -n monitoring -o yaml

apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"monitoring.coreos.com/v1","kind":"ServiceMonitor","metadata":{"annotations":{},"labels":{"app":"nginx"},"name":"nginx","namespace":"monitoring"},"spec":{"endpoints":[{"port":"exporter"}],"namespaceSelector":{"matchNames":["app"]},"selector":{"matchLabels":{"app":"nginx"}}}}
  creationTimestamp: "2021-06-23T14:45:28Z"
  generation: 3
  labels:
    app: nginx
  name: nginx
  namespace: monitoring
  resourceVersion: "19192847"
  selfLink: /apis/monitoring.coreos.com/v1/namespaces/monitoring/servicemonitors/nginx
  uid: d4fe18d7-fa7f-4940-a995-d5d90fc78a52
spec:
  endpoints:
  - port: exporter
  namespaceSelector:
    matchNames:
    - app
  selector:
    matchLabels:
      app: nginx