network: Gather OVN-Kubernetes UDN CRs

The ClusterUserDefinedNetwork (CUDN) is cluster-scoped, installed by
cluster-network-operator [1].

Creating CUDN CR result with a NetworkAttachmentDefinition (NAD) CR
being created according to the CUDN CR 'spec.network', in each selected
namespaces according to the CUDN CR 'spec.namespaceSelector'.

Collect CUDN CRs.

Having CUDN CRs collected enable troubleshooting OVN-Kubernetes
user-defined networks in case of miss-configurations or env issues.
The

[1] https://github.com/openshift/cluster-network-operator

Signed-off-by: Or Mergi <[email protected]>

Author: ormergi

collection-scripts/gather_network_logs_basics

@@ -141,6 +141,7 @@ gather_scale_data
 
 if [[ "${NETWORK_TYPE}" == "ovnkubernetes" ]]; then
     oc adm inspect ${log_collection_args} --dest-dir must-gather egressips.k8s.ovn.org
+    oc adm inspect ${log_collection_args} --dest-dir must-gather clusteruserdefinednetworks.k8s.ovn.org
     oc adm inspect ${log_collection_args} --dest-dir must-gather adminnetworkpolicies.policy.networking.k8s.io
     oc adm inspect ${log_collection_args} --dest-dir must-gather baselineadminnetworkpolicies.policy.networking.k8s.io
     gather_ovn_kubernetes_data