Fixi iscsi register backport (#67542)

* Fix KeyError for iSCSI parameters (#67463)

The required parameters for the LUN mapping for destination LUN is
address, port and iqn. However if the user doesn't pass parameters
like  CHAP authentication parameters, we will get KeyError. The patch
fixes the same.

* add changelog

Co-authored-by: Nijin Ashok <nashok@redhat.com>

changelogs/fragments/67463-ovirt_vm-fix-keyError-for-iSCSI-parameters.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - "ovirt_vm: correct keyError for iSCSI parameters"

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

@@ -2166,13 +2166,13 @@ def _get_lun_mappings(module):
                             ['iscsi', 'fcp']) else None,
                         logical_units=[
                             otypes.LogicalUnit(
-                                id=lunMapping['dest_logical_unit_id'],
-                                port=lunMapping['dest_logical_unit_port'],
-                                portal=lunMapping['dest_logical_unit_portal'],
-                                address=lunMapping['dest_logical_unit_address'],
-                                target=lunMapping['dest_logical_unit_target'],
-                                password=lunMapping['dest_logical_unit_password'],
-                                username=lunMapping['dest_logical_unit_username'],
+                                id=lunMapping.get('dest_logical_unit_id'),
+                                port=lunMapping.get('dest_logical_unit_port'),
+                                portal=lunMapping.get('dest_logical_unit_portal'),
+                                address=lunMapping.get('dest_logical_unit_address'),
+                                target=lunMapping.get('dest_logical_unit_target'),
+                                password=lunMapping.get('dest_logical_unit_password'),
+                                username=lunMapping.get('dest_logical_unit_username'),
                             )
                         ],
                     ),