docker configuration section很清楚:
Log into your host as a user with sudo or root privileges.
If you don’t have one, create the /etc/default/docker file on your host. Depending on how you installed Docker, you may already have this file.
Open the file with your favorite editor.
$sudo vi /etc/default/docker
Add a DOCKER_OPTS variable with the following options. These options are appended to the docker daemon’s run command.
DOCKER_OPTS="--label=com.example.storage=ssd"
Save and close the file.
Restart the docker daemon.
$sudo restart docker