What file would you modify to configure Docker daemon options?

To configure Docker daemon options, the appropriate file to modify is daemon.json. This file allows users to specify various settings for the Docker daemon in JSON format. These settings can include network configurations, logging drivers, storage options, and other parameters that dictate how the Docker daemon behaves.

Using daemon.json is particularly beneficial because it centralizes daemon-related configurations in a single file, making it easier to manage and modify settings as needed. The changes made in this file will typically be recognized when the Docker service is restarted, allowing the new configurations to take effect.

In contrast, docker-compose.yml is used primarily for defining and managing multi-container Docker applications, while a Dockerfile is a script that contains instructions to build Docker images. The config.docker option does not refer to a standard file used in Docker configurations, making it irrelevant in this context.