From c6aa7b905339fa5ab39bd429317d1123778dd1c6 Mon Sep 17 00:00:00 2001
From: Justin Cormack <justin.cormack@docker.com>
Date: Tue, 18 Jul 2017 11:51:52 +0100
Subject: [PATCH] Add onshutdown support to runc

This will run any containers in `/containers/onshutdown` on a clean
shutdown.

Signed-off-by: Justin Cormack <justin.cormack@docker.com>
---
 pkg/runc/etc/shutdown.d/010-onshutdown | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100755 pkg/runc/etc/shutdown.d/010-onshutdown

diff --git a/pkg/runc/etc/shutdown.d/010-onshutdown b/pkg/runc/etc/shutdown.d/010-onshutdown
new file mode 100755
index 000000000..1f72d37cc
--- /dev/null
+++ b/pkg/runc/etc/shutdown.d/010-onshutdown
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# start onshutdown containers, run to completion
+
+if [ -d /containers/onshutdown ]
+then
+	for f in $(find /containers/onshutdown -mindepth 1 -maxdepth 1 | sort)
+	do
+		base="$(basename $f)"
+		/bin/mount --bind "$f/rootfs" "$f/rootfs"
+		mount -o remount,rw "$f/rootfs"
+		/usr/bin/runc run --bundle "$f" "$(basename $f)"
+		printf " - $base\n"
+	done
+fi