ovirt_host_networks: Fix idempotency (#37075)

lib/ansible/modules/cloud/ovirt/ovirt_host_networks.py

@@ -283,14 +283,33 @@ def main():
         labels = module.params['labels']
         nic_name = bond.get('name') if bond else module.params['interface']
 
-        nics_service = hosts_service.host_service(host.id).nics_service()
+        host_service = hosts_service.host_service(host.id)
+        nics_service = host_service.nics_service()
         nic = search_by_name(nics_service, nic_name)
 
+        network_names = [network['name'] for network in networks]
         state = module.params['state']
         if (
             state == 'present' and
             (nic is None or host_networks_module.has_update(nics_service.service(nic.id)))
         ):
+            # Remove networks which are attached to different interface then user want:
+            attachments_service = host_service.network_attachments_service()
+            remove_network_attachments = [
+                a for a in attachments_service.list()
+                if get_link_name(connection, a.network) in network_names and
+                get_link_name(connection, a.host_nic) != interface
+            ]
+            if remove_network_attachments:
+                host_networks_module.action(
+                    entity=host,
+                    action='setup_networks',
+                    post_action=host_networks_module._action_save_configuration,
+                    check_connectivity=module.params['check'],
+                    removed_network_attachments=remove_network_attachments,
+                )
+
+            # Assign the networks:
             host_networks_module.action(
                 entity=host,
                 action='setup_networks',
@@ -343,7 +362,9 @@ def main():
                                 ),
                             ),
                         ],
-                    ) for network in networks
+                    ) for network in networks if network['name'] not in [
+                        get_link_name(connection, a.network) for a in attachments_service.list()
+                    ]  # Attach only networks which are not yet attached.
                 ] if networks else None,
             )
         elif state == 'absent' and nic:
@@ -353,7 +374,6 @@ def main():
             attachments = attachments_service.list()
             attached_labels = set([str(lbl.id) for lbl in nic_service.network_labels_service().list()])
             if networks:
-                network_names = [network['name'] for network in networks]
                 attachments = [
                     attachment for attachment in attachments
                     if get_link_name(connection, attachment.network) in network_names
@@ -374,7 +394,7 @@ def main():
                     ] if bond else None,
                     removed_labels=[
                         otypes.NetworkLabel(id=str(name)) for name in labels
-                    ],
+                    ] if labels else None,
                     removed_network_attachments=list(attachments),
                 )