Comment 1 for bug 1799127

actually, there are other issue with the CRD exampe, should be:
apiVersion: "k8s.cni.cncf.io/v1"
kind: NetworkAttachmentDefinition
metadata:
  name: a-bridge-network
  annotations:
    openstack.org/kuryr-config: '{
      "subnetId": "id_of_neutron_subnet_created_previously"
    }'
spec:
  config: '{}'