Hey, How to Create Site using AWS-RDS DB?

I followed the following Steps,

  1. Create RDS DB server
  2. Added parameter in common_site_config.json:
    Parameter: “db_host”: “demo.rds.amazonaws.com”,
    “rds_db”: 1
  3. try to create new site, got following error:
    pymysql.err.OperationalError: (1045, “Access denied for user ‘administrator@demo.rds.amazonaws.com’@‘10.3020.13’ (using password: YES)”)

If I missed anything Please share in details,

Thank you in advance.