apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: nginx-ingress
  namespace: monitoring  # 存放在与 Prometheus 相同的命名空间
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: ingress-nginx  # 确保这个标签匹配你的 Ingress Controller 服务
  namespaceSelector:
    matchNames:
      - ingress-nginx  # NGINX Ingress Controller 所在的命名空间
  endpoints:
  - port: metrics  # NGINX Ingress Controller 服务中公开指标的端口名称
    interval: 30s