dockerd-entrypoint.sh

#!/bin/sh
set -e

/usr/local/bin/dockerd \
	--host=unix:///var/run/docker.sock \
	--host=tcp://127.0.0.1:2375 \
	--storage-driver=overlay &>/var/log/docker.log &


tries=0
d_timeout=60
until docker info >/dev/null 2>&1
do
	if [ "$tries" -gt "$d_timeout" ]; then
                cat /var/log/docker.log
		echo 'Timed out trying to connect to internal docker host.' >&2
		exit 1
	fi
        tries=$(( $tries + 1 ))
	sleep 1
done

eval "$@"