| `username` | | None | The username credential. |
| `password` | | None | The password credential. |
| `url_prefix` | | "" | There are cases where an enterprise would have multiple elastic search clusters. One way for them to manage is to have a single endpoint for all the elastic search clusters and use url_prefix for routing requests to different clusters. |
| `env` | | `"PROD"` | Environment to use in namespace when constructing URNs. |
| `platform_instance` | | None | The Platform instance to use while constructing URNs. |
| `index_pattern.allow` | | | List of regex patterns for indexes to include in ingestion. |
| `index_pattern.deny` | | | List of regex patterns for indexes to exclude from ingestion. |
| `index_pattern.ignoreCase` | | `True` | Whether regex matching should ignore case or not |