Function extract_docker_compose 

pub fn extract_docker_compose(
    source_path: &str,
    input: &str,
) -> Result<InfrastructureDocument, InfrastructureExtractionError>

Extracts explicit Docker Compose services and their declaration metadata.

Environment values, secret definitions, and source fragments are never retained.

Errors

Returns InfrastructureExtractionError when the source path, size, structure, or YAML document exceeds a documented bound or is malformed.