It worked !! thank you so much
/usr/bin/curator /home/elkadmin/curator/curator-action-delete.yml --config /home/elkadmin/curator/curator-cfg.yml
2020-06-30 10:22:48,904 INFO Preparing Action ID: 1, "delete_indices"
2020-06-30 10:22:48,904 INFO Creating client object and testing connection
2020-06-30 10:22:48,908 INFO Instantiating client object
2020-06-30 10:22:48,908 INFO Testing client connectivity
2020-06-30 10:22:48,912 INFO Successfully created Elasticsearch client object with provided settings
2020-06-30 10:22:48,915 WARNING allow_ilm_indices: true
2020-06-30 10:22:48,915 WARNING Permitting operation on indices with an ILM policy
2020-06-30 10:22:48,915 INFO Trying Action ID: 1, "delete_indices": Delete old indexes.
2020-06-30 10:22:49,137 INFO Deleting 3 selected indices: ['cisco-asa-2020.06.24', 'cisco-asa-2020.06.23', 'cisco-asa-2020.06.25']
2020-06-30 10:22:49,137 INFO ---deleting index cisco-asa-2020.06.24
2020-06-30 10:22:49,137 INFO ---deleting index cisco-asa-2020.06.23
2020-06-30 10:22:49,137 INFO ---deleting index cisco-asa-2020.06.25
2020-06-30 10:22:51,737 INFO Action ID: 1, "delete_indices" completed.
2020-06-30 10:22:51,737 INFO Job completed.