Docker Daemon File (daemon.json)

• Purpose: Configures the Docker daemon itself.
• Location: Typically found at /etc/docker/daemon.json on Linux systems.
• Contents: Contains settings related to the Docker daemon's behavior, such as storage drivers, network configuration, TLS settings, and more.
• Example settings:
  • Storage driver: {"storage-driver": "overlay2"}
  • Insecure registries: `{"insecure-registries": ["[invalid URL removed]"]}
  • Log driver: {"log-driver": "json-file"}

Docker Config File (config.json)

• Purpose: Stores authentication credentials for Docker registries.

• Location: Typically found at ~/.docker/config.json on Linux systems.

• Contents: Contains username, password, and other authentication information for accessing Docker registries.

• Example content:

  {
      "auths": {
          "https://my-registry.example.com": {
              "auth": "base64encoded_credentials"
          }
      }
  }
  

In summary:

• The Docker daemon file controls how the Docker daemon operates.
• The Docker config file manages authentication information for accessing Docker registries.