Netflix DevOps Engineer System Design Questions

As Netflix manages a plethora of microservices, a central configuration manager is vital for managing dynamic configurations across deployments. Your task is to design a class that can handle storing, updating, and retrieving configurations for various services.
- def get_config(service_name: str) -> Dict[str, str]: Retrieves configuration for a given service.
- def set_config(service_name: str, config: Dict[str, str]) -> None: Updates the configuration for a given service.
- def list_services() -> List[str]: Returns a list of all services currently managed by the configuration manager.Example 1:
Input: set_config('video_service', {'quality': '1080p', 'bitrate': '4500kbps'})
Output: None
Explanation: Updates the configuration for the video_service.Example 2:
Input: get_config('video_service')
Output: {'quality': '1080p', 'bitrate': '4500kbps'}
Explanation: Retrieves the updated configuration for the video_service.Constraints:
- The number of services managed does not exceed 1000.
- Configuration items per service are limited to 100.