Cilium repro

ciliumtest.yaml

---
apiVersion: v1
kind: Namespace
metadata:
  name: ciltestout
---
apiVersion: v1
kind: Namespace
metadata:
  name: ciltestin
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: server
  name: server
  namespace: ciltestin
spec:
  replicas: 1
  selector:
    matchLabels:
      app: server
  template:
    metadata:
      labels:
        app: server
    spec:
      containers:
      - image: nginx
        name: nginx
---
apiVersion: v1
kind: Service
metadata:
  labels:
    app: server
  name: server
  namespace: ciltestin
spec:
  ports:
  - port: 80
    protocol: TCP
    targetPort: 80
  selector:
    app: server
---
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
  name: egress
  namespace: ciltestout
spec:
  endpointSelector:
    matchLabels:
      app: client
  egress:
    - toEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: kube-system
            k8s-app: kube-dns
      toPorts:
        - ports:
            - port: "53"
              protocol: UDP
          rules:
            dns:
              - matchPattern: "*"
    - toEndpoints:
        - matchLabels:
            app: server
          matchExpressions:
            - key: k8s:io.kubernetes.pod.namespace
              operator: In
              values:
                - ciltestin
---
apiVersion: v1
kind: Pod
metadata:
  name: client
  namespace: ciltestout
  labels:
    app: client
spec:
  containers:
    - name: client
      image: curlimages/curl
      command: [sleep, infinity]