what is use of ec2-credentials table in keystone database?
What is use of ec2-credentials table in Keystone database? The table contains following schema
| Field | Type | Null | Key | Default | Extra |
+-----------+-------------+------+-----+---------+-------+
| access | varchar(64) | NO | PRI | NULL | |
| secret | varchar(64) | YES | | NULL | |
| user_id | varchar(64) | YES | | NULL | |
| tenant_id | varchar(64) | YES | | NULL | |
i am not getting the purpose of this table?