hydra-maester/config/default/manager_prometheus_metrics_patch.yaml

# This patch enables Prometheus scraping for the manager pod.
apiVersion: apps/v1
kind: Deployment
metadata:
  name: controller-manager
  namespace: system
spec:
  template:
    metadata:
      annotations:
        prometheus.io/scrape: "true"
    spec:
      containers:
        # Expose the prometheus metrics on default port
        - name: manager
          ports:
            - containerPort: 8080
              name: metrics
              protocol: TCP