From ad5af964fc03b835e8b0b908cb6de2de59ee9a2c Mon Sep 17 00:00:00 2001
From: Olaf Meeuwissen <paddy-hack@member.fsf.org>
Date: Fri, 18 Aug 2017 17:39:51 +0900
Subject: [PATCH] Don't run init scripts from installation scripts

---
 scripts/tweak-init-policy | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100755 scripts/tweak-init-policy

diff --git a/scripts/tweak-init-policy b/scripts/tweak-init-policy
new file mode 100755
index 0000000..6437687
--- /dev/null
+++ b/scripts/tweak-init-policy
@@ -0,0 +1,19 @@
+#!/bin/sh -eu
+# tweak-init-policy -- for use in a Docker image
+# Copyright (C) 2017  Olaf Meeuwissen
+#
+# License: GPL-3.0+
+
+cat > /usr/sbin/policy-rc.d.docker <<EOF
+#!/bin/sh
+exit 101		# action forbidden by policy
+EOF
+chmod 0755 /usr/sbin/policy-rc.d.docker
+
+update-alternatives --quiet --install /usr/sbin/policy-rc.d \
+                    policy-rc.d /usr/sbin/policy-rc.d.docker 100
+
+dpkg-divert --quiet --local --add /sbin/initctl
+ln -fs /bin/true /sbin/initctl
+
+rm $0