oslo_event: set output parameter defaults

This is for handlers that don't support all elements.

Author: skrobul

python/understack-workflows/understack_workflows/oslo_event/keystone_project.py

@@ -136,7 +136,6 @@ def handle_project_deleted(
             netapp_manager.cleanup_project(event.project_id)
         else:
             logger.info("SVM for project %s did not exist.", event.project_id)
-        _save_output("svm_created", str(False))
     except Exception as e:
         logger.error(e)
         return 1

workflows/argo-events/workflowtemplates/openstack-oslo-event.yaml

@@ -67,9 +67,12 @@ spec:
           - name: svm_name
             valueFrom:
               path: /var/run/argo/output.svm_name
+              default: ""
           - name: svm_enabled
             valueFrom:
               path: /var/run/argo/output.svm_enabled
+              default: "False"
           - name: svm_created
             valueFrom:
               path: /var/run/argo/output.svm_created
+              default: "False"