docker-docs/engine/reference/commandline/config.md

datafolder, datafile, title, redirect_from

datafolder	datafile	title	redirect_from
engine-cli	docker_config	docker config	/edge/engine/reference/commandline/config/

{% if page.datafolder contains '-edge' %} {% include edge_only.md section="cliref" %} {% endif %} {% include cli.md datafolder=page.datafolder datafile=page.datafile %}

More info

Store configuration data using Docker Configs