From 681594c11c197cbffdbac57e6d3ad7490a662ff9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <mail@daniel-baumann.ch>
Date: Fri, 8 Oct 2021 19:31:08 +0200
Subject: Adding shutdown handling in bfh-container.

Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>
---
 debian/bfh-container.postrm  | 30 ++++++++++++++++++++++++++++++
 debian/bfh-container.preinst | 32 ++++++++++++++++++++++++++++++++
 debian/local/shutdown        | 13 +++++++++++++
 debian/local/shutdown.txt    |  6 ++++++
 debian/rules                 | 16 ++++++++++++++++
 5 files changed, 97 insertions(+)
 create mode 100755 debian/bfh-container.postrm
 create mode 100755 debian/bfh-container.preinst
 create mode 100755 debian/local/shutdown
 create mode 100644 debian/local/shutdown.txt

diff --git a/debian/bfh-container.postrm b/debian/bfh-container.postrm
new file mode 100755
index 0000000..ec69346
--- /dev/null
+++ b/debian/bfh-container.postrm
@@ -0,0 +1,30 @@
+#!/bin/sh
+
+set -e
+
+case "${1}" in
+	remove)
+		for FILE in halt poweroff reboot shutdown coldreboot
+		do
+			dpkg-divert --package bfh-container --quiet --remove --rename --divert /lib/container/divert/${FILE}.orig /sbin/${FILE}
+		done
+
+		for FILE in pm-hibernate pm-suspend pm-suspend-hybrid
+		do
+			dpkg-divert --package bfh-container --quiet --remove --rename --divert /lib/container/divert/${FILE}.orig /usr/sbin/${FILE}
+		done
+		;;
+
+	purge|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
+
+		;;
+
+	*)
+		echo "postrm called with unknown argument \`${1}'" >&2
+		exit 1
+		;;
+esac
+
+#DEBHELPER#
+
+exit 0
diff --git a/debian/bfh-container.preinst b/debian/bfh-container.preinst
new file mode 100755
index 0000000..335d160
--- /dev/null
+++ b/debian/bfh-container.preinst
@@ -0,0 +1,32 @@
+#!/bin/sh
+
+set -e
+
+case "${1}" in
+	install|upgrade)
+		mkdir -p /lib/container/divert
+
+		for FILE in halt poweroff reboot shutdown coldreboot
+		do
+			dpkg-divert --package bfh-container --quiet --add --rename --divert /lib/container/divert/${FILE}.orig /sbin/${FILE}
+		done
+
+		for FILE in pm-hibernate pm-suspend pm-suspend-hybrid
+		do
+			dpkg-divert --package bfh-container --quiet --add --rename --divert /lib/container/divert/${FILE}.orig /usr/sbin/${FILE}
+		done
+		;;
+
+	abort-upgrade)
+
+		;;
+
+	*)
+		echo "preinst called with unknown argument \`${1}'" >&2
+		exit 1
+		;;
+esac
+
+#DEBHELPER#
+
+exit 0
diff --git a/debian/local/shutdown b/debian/local/shutdown
new file mode 100755
index 0000000..30e959d
--- /dev/null
+++ b/debian/local/shutdown
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+echo "${0}: disabled in systemd-nspawn container"
+
+if [ -e /etc/compute-tools/shutdown.txt ]
+then
+	cat /etc/compute-tools/shutdown.txt
+elif [ -e /usr/share/container/shutdown.txt ]
+then
+	cat /usr/share/container/shutdown.txt
+fi
+
+exit 1
diff --git a/debian/local/shutdown.txt b/debian/local/shutdown.txt
new file mode 100644
index 0000000..b082bf0
--- /dev/null
+++ b/debian/local/shutdown.txt
@@ -0,0 +1,6 @@
+
+Linux container share the kernel of the host system they are running on,
+there is no need to reboot just the container.
+
+However, please contact your system administrator to reboot this
+container from the host system.
diff --git a/debian/rules b/debian/rules
index b9a70ab..7bb7904 100755
--- a/debian/rules
+++ b/debian/rules
@@ -7,6 +7,22 @@ override_dh_auto_install:
 	dh_auto_install -- DESTDIR=$(CURDIR)/debian/bfh-base-system
 
 execute_after_dh_auto_install:
+	# shutdown
+	mkdir -p debian/bfh-container/sbin
+	for FILE in halt poweroff reboot shutdown coldreboot; \
+	do \
+		cp debian/local/shutdown debian/bfh-container/sbin/$${FILE}; \
+	done
+
+	mkdir -p debian/bfh-container/usr/sbin
+	for FILE in pm-hibernate pm-suspend pm-suspend-hybrid; \
+	do \
+		cp debian/local/shutdown debian/bfh-container/usr/sbin/$${FILE}; \
+	done
+
+	mkdir -p debian/bfh-container/usr/share/container
+	cp debian/local/shutdown.txt debian/bfh-container/usr/share/container
+
 	# removing useless files
 	rm -f debian/tmp/usr/share/doc/*/CHANGELOG.txt
 	rm -f debian/tmp/usr/share/doc/*/LICENSE.txt
-- 
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