Add poststart delay to Docker init script

basic.sh

@@ -48,5 +48,8 @@ for SERVICE in consolefont crond nginx ntpd sshd; do
     rc-update add ${SERVICE} boot
     service ${SERVICE} start
 done
+
+# Configure Docker service
+cp ${SOURCE_DIR}/etc/init.d/docker /etc/init.d/docker
 rc-update add docker
 service docker start

basic/etc/init.d/docker

@@ -0,0 +1,42 @@
+#!/sbin/openrc-run
+# Copyright 1999-2013 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+command="${DOCKERD_BINARY:-/usr/bin/dockerd}"
+pidfile="${DOCKER_PIDFILE:-/run/${RC_SVCNAME}.pid}"
+command_args="-p \"${pidfile}\" ${DOCKER_OPTS}"
+DOCKER_LOGFILE="${DOCKER_LOGFILE:-/var/log/${RC_SVCNAME}.log}"
+DOCKER_ERRFILE="${DOCKER_ERRFILE:-${DOCKER_LOGFILE}}"
+DOCKER_OUTFILE="${DOCKER_OUTFILE:-${DOCKER_LOGFILE}}"
+start_stop_daemon_args="--background \
+	--stderr \"${DOCKER_ERRFILE}\" --stdout \"${DOCKER_OUTFILE}\""
+
+grsecdir=/proc/sys/kernel/grsecurity
+
+depend() {
+	need sysfs
+}
+
+start_pre() {
+	checkpath -f -m 0644 -o root:docker "$DOCKER_LOGFILE"
+
+	for i in $disable_grsec; do
+		if [ -e "$grsecdir/$i" ]; then
+			einfo " Disabling $i"
+			echo 0 > "$grsecdir/$i"
+		fi
+	done
+	ulimit -n 1048576
+
+	# Having non-zero limits causes performance problems due to accounting overhead
+	# in the kernel. We recommend using cgroups to do container-local accounting.
+	ulimit -p unlimited
+
+	return 0
+}
+
+start_post() {
+	until [ -e /var/run/docker.sock ]; do
+		usleep 100000
+	done
+}