openwrt-packages-dist/utils/docker-ce/files/dockerd.init

#!/bin/sh /etc/rc.common

USE_PROCD=1
START=25

# docker can't run with a symlink in the path so we just use /opt/docker/
start_service() {
	procd_open_instance
	procd_set_param command /usr/bin/dockerd -g /opt/docker/
	procd_close_instance
}