kustomize/pkg/commands/testdata/testcase-base-only/in/resources/networkpolicy.yaml

apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: nginx
spec:
  podSelector:
    matchExpressions:
      - {key: app, operator: In, values: [test]}
  ingress:
    - from:
        - podSelector:
            matchLabels:
              app: nginx