All `map` parameters can be specified as `map` for a subset of files or as `string` for all files.
- For the `acl` parameter the key must be a glob. Files without a matching rule will default to `private`.
- For the `content_type` parameter, the key must be a file extension (including the leading dot). To apply a configuration to files without extension, the key can be set to an empty string `""`. For files without a matching rule, the content type is determined automatically.
- For the `content_encoding` parameter, the key must be a file extension (including the leading dot). To apply a configuration to files without extension, the key can be set to an empty string `""`. For files without a matching rule, no Content Encoding header is set.
- For the `cache_control` parameter, the key must be a file extension (including the leading dot). If you want to set cache control for files without an extension, set the key to the empty string `""`. For files without a matching rule, no Cache Control header is set.
**Sync to Minio S3:**
To use [Minio S3](https://docs.min.io/) its required to set `path_style: true`.