[2.9] zabbix_template: fixed zabbix no longer returning macros as part of the template (#69235)

* fixed zabbix no longer returning macros as part of the template (#66996)


(cherry picked from commit c80d0c40ce)

* added changelog fragment

changelogs/fragments/66996-zabbix-template.yaml

@@ -0,0 +1,2 @@
+bugfixes:
+- zabbix_template - no longer fails with KeyError when there are no macros present in existing template (see https://github.com/ansible-collections/community.zabbix/issues/19)

lib/ansible/modules/monitoring/zabbix/zabbix_template.py

@@ -417,6 +417,9 @@ class Template(object):
                     changed = True
                     break
 
+        if 'macros' not in existing_template['zabbix_export']['templates'][0]:
+            existing_template['zabbix_export']['templates'][0]['macros'] = []
+
         if template_macros is not None:
             existing_macros = existing_template['zabbix_export']['templates'][0]['macros']
             if template_macros != existing_macros: