---
# NFD master: apiserver, metrics from host.
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
  name: nfd-master
  namespace: nfd
spec:
  endpointSelector:
    matchLabels:
      app.kubernetes.io/name: node-feature-discovery
      role: master
  ingress:
    - fromEntities:
        - host
      toPorts:
        - ports:
            - port: "8080"
              protocol: TCP
    - fromEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: nfd
      toPorts:
        - ports:
            - port: "8081"
              protocol: TCP
  egress:
    - toEntities:
        - kube-apiserver
      toPorts:
        - ports:
            - port: "6443"
              protocol: TCP
    - toEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: kube-system
            k8s-app: kube-dns
      toPorts:
        - ports:
            - port: "53"
              protocol: UDP
            - port: "53"
              protocol: TCP
---
# NFD worker: reports to master, apiserver, metrics from host.
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
  name: nfd-worker
  namespace: nfd
spec:
  endpointSelector:
    matchLabels:
      app.kubernetes.io/name: node-feature-discovery
      role: worker
  ingress:
    - fromEntities:
        - host
      toPorts:
        - ports:
            - port: "8080"
              protocol: TCP
  egress:
    - toEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: nfd
            role: master
      toPorts:
        - ports:
            - port: "8081"
              protocol: TCP
    - toEntities:
        - kube-apiserver
      toPorts:
        - ports:
            - port: "6443"
              protocol: TCP
    - toEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: kube-system
            k8s-app: kube-dns
      toPorts:
        - ports:
            - port: "53"
              protocol: UDP
            - port: "53"
              protocol: TCP
---
# Host egress to NFD pods (metrics).
apiVersion: cilium.io/v2
kind: CiliumClusterwideNetworkPolicy
metadata:
  name: host-egress-nfd
spec:
  nodeSelector: {}
  egress:
    - toEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: nfd
      toPorts:
        - ports:
            - port: "8080"
              protocol: TCP
---
# NFD GC: only needs apiserver.
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
  name: nfd-gc
  namespace: nfd
spec:
  endpointSelector:
    matchLabels:
      app.kubernetes.io/name: node-feature-discovery
      role: gc
  ingress:
    - fromEntities:
        - host
      toPorts:
        - ports:
            - port: "8080"
              protocol: TCP
  egress:
    - toEntities:
        - kube-apiserver
      toPorts:
        - ports:
            - port: "6443"
              protocol: TCP
    - toEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: kube-system
            k8s-app: kube-dns
      toPorts:
        - ports:
            - port: "53"
              protocol: UDP
            - port: "53"
              protocol: TCP