Test 1.

Define an NNCP with bridge mapping of the localnet network to be created to the default ovs bridge (br-ex). NNCP for reference:

apiVersion: nmstate.io/v1
kind: NodeNetworkConfigurationPolicy
metadata:
  annotations:
  name: localnet-brex
spec:
  desiredState:
    ovn:
      bridge-mappings:
      - localnet: localnet-network-brex
        bridge: br-ex 
        state: present
  nodeSelector:
    node-role.kubernetes.io/worker: ''

Create a localnet CUDN with 2 namespaces specified under the namespaceSelector, and also define a VLAN tag in the CUDN. For the current implementation we will create the localnet NAD's directly in 2 namespaces. Here is a yaml for one of them (physicalNetworkName should be identical in both NAD's):

apiVersion: k8s.cni.cncf.io/v1
kind: NetworkAttachmentDefinition
metadata:
  annotations:
  name: localnet-network-brex1
  namespace: green-namespace
spec:
  config: |
    {
      "cniVersion": "0.3.1",
      "name": "localnet-network-brex1",
      "type": "ovn-k8s-cni-overlay",
      "topology": "localnet",
      "vlanID": 1000,
      "mtu": 1500,
      "netAttachDefName": "green-namespace/localnet-network-brex1"

      "physicalNetworkName": "awesomelocalnet"
{{    }}}

Create 2 VMs, one in each of the namespaces specified in CNV-55294. Make sure that at lease one of the VMs is not connected to the pod network.

Verify connection between the VMs (ping). Make sure to ping from the VM without the pod network to the other VM.

Please note - since we currently don't have the CUDN implemented in the product we will create the desired localnet NAD/s directly. In the future, when we have it available downstream the test case (and automation) should be changed accordingly.

DOD:

Write a detailed test plan in Polarion.

Verify the test manually.