apiVersion: cilium.io/v2
kind: CiliumClusterwideNetworkPolicy
metadata:
  name: monitoring
spec:
  nodeSelector:
    # apply to all nodes
    matchLabels: {}
  ingress:
    # prometheus -> monitoring ports
    - fromEndpoints:
        - matchLabels:
            io.cilium.k8s.policy.serviceaccount: prometheus-kube-prometheus-prometheus
            io.kubernetes.pod.namespace: observability
      toPorts:
        - ports:
            - port: '9100'
              protocol: TCP
            - port: '9962'
              protocol: TCP
            - port: '9963'
              protocol: TCP
            - port: '9965'
              protocol: TCP
            - port: '10257'
              protocol: TCP
            - port: '10259'
              protocol: TCP
  egress:
    - toEndpoints:
        - matchLabels:
            io.cilium.k8s.policy.serviceaccount: prometheus-kube-prometheus-prometheus
            io.kubernetes.pod.namespace: observability
      toPorts:
        - ports:
            - port: '9090'
              protocol: TCP