From 33518d7d62493c7d00e3792146399c9572abe915 Mon Sep 17 00:00:00 2001
From: Scott Moser <smoser@brickies.net>
Date: Tue, 28 Feb 2017 16:53:56 -0500
Subject: Add profile.d script for showing warnings on login.

Z99-cloudinit-warnings.sh can be dropped into /etc/profile.d.
Warnings that are written to /var/lib/cloud/instance/warnings
will be displayed to the user on stderr when they log in.
---
 packages/debian/rules.in        |  1 +
 tools/Z99-cloudinit-warnings.sh | 30 ++++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 tools/Z99-cloudinit-warnings.sh

diff --git a/packages/debian/rules.in b/packages/debian/rules.in
index 3df6053a..053b7649 100755
--- a/packages/debian/rules.in
+++ b/packages/debian/rules.in
@@ -12,6 +12,7 @@ override_dh_install:
 	install -d debian/cloud-init/etc/rsyslog.d
 	cp tools/21-cloudinit.conf debian/cloud-init/etc/rsyslog.d/21-cloudinit.conf
 	install -D ./tools/Z99-cloud-locale-test.sh debian/cloud-init/etc/profile.d/Z99-cloud-locale-test.sh
+	install -D ./tools/Z99-cloudinit-warnings.sh debian/cloud-init/etc/profile.d/Z99-cloudinit-warnings.sh
 
 override_dh_auto_test:
 ifeq (,$(findstring nocheck,$(DEB_BUILD_OPTIONS)))
diff --git a/tools/Z99-cloudinit-warnings.sh b/tools/Z99-cloudinit-warnings.sh
new file mode 100644
index 00000000..b237786b
--- /dev/null
+++ b/tools/Z99-cloudinit-warnings.sh
@@ -0,0 +1,30 @@
+#!/bin/sh
+# This file is part of cloud-init. See LICENSE file for license information.
+
+# Purpose: show user warnings on login.
+
+cloud_init_warnings() {
+    local skipf="" warning="" idir="/var/lib/cloud/instance" n=0
+    local warndir="$idir/warnings"
+    local ufile="$HOME/.cloud-warnings.skip" sfile="$warndir/.skip"
+    [ -d "$warndir" ] || return 0
+    [ ! -f "$ufile" ] || return 0
+    [ ! -f "$skipf" ] || return 0
+
+    for warning in "$warndir"/*; do
+        [ -f "$warning" ] || continue
+        cat "$warning"
+        n=$((n+1))
+    done
+    [ $n -eq 0 ] && return 0
+    echo ""
+    echo "Disable the warnings above by:"
+    echo "  touch $ufile"
+    echo "or"
+    echo "  touch $sfile"
+}
+
+cloud_init_warnings 1>&2
+unset cloud_init_warnings
+
+# vi: syntax=sh ts=4 expandtab
-- 
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