4.2 Reloading or Restarting the Docker Engine

If you change the Docker Engine configuration while the docker service is running, you must reload the service configuration to make the changes take effect.

To reload the docker service configuration, enter the following command:

# systemctl daemon-reload

If you do not reload the service configuration, systemd continues to use the original, cached configuration.

If you need to restart the docker service itself, enter the following command:

# systemctl restart docker