manifests/apps/charts/sys-cilium-policies/templates/prometheus/CiliumNetworkPolicy-allow-etcd-metrics.yaml

apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
  name: allow-etcd-metrics
  namespace: prometheus
spec:
  description: Allow ETCD metrics
  egress:
    - toPorts:
        - ports:
            - port: "2379"
              protocol: TCP
  endpointSelector:
    matchLabels:
      app.kubernetes.io/name: prometheus