From 6a1f59bfeeb95ec181b36ce0236e0a9cd6baa691 Mon Sep 17 00:00:00 2001
From: Alexandros Kiousis <alexk@noc.grnet.gr>
Date: Wed, 17 Sep 2014 20:25:03 +0300
Subject: [PATCH 1/2] Add a SELINUX relabel function for RHEL-like oses

---
 common.sh.in | 19 +++++++++++++++++++
 create       |  2 ++
 2 files changed, 21 insertions(+)

diff --git a/common.sh.in b/common.sh.in
index 804d049..7083848 100644
--- a/common.sh.in
+++ b/common.sh.in
@@ -399,6 +399,25 @@ setup_console() {
     esac
 }
 
+filesystem_check() {
+    local target=$1
+    if [ -z "$target" ] ; then
+        log_error "target not set for filesystem_check"
+        exit 1
+    fi
+
+    get_os $target
+
+    case "${OPERATING_SYSTEM}" in
+       fedora|centos|redhat)
+        # we have to force a filesystem relabeling for SELinux after messing
+        # around with the filesystem in fedora
+        echo "Enforce an automatic relabeling in the initial boot process..."
+        touch $target/.autorelabel
+       ;;
+    esac
+}
+
 cleanup() {
   if [ ${#CLEANUP[*]} -gt 0 ]; then
     LAST_ELEMENT=$((${#CLEANUP[*]}-1))
diff --git a/create b/create
index a6c7f64..e9eaad9 100755
--- a/create
+++ b/create
@@ -119,6 +119,8 @@ if [ "$CDINSTALL" = "no" ] ; then
         setup_console $TARGET
     fi
 
+    filesystem_check $TARGET
+
     RUN_PARTS=`which run-parts`
 
     if [ -n "$RUN_PARTS" -a -n "$CUSTOMIZE_DIR" -a -d "$CUSTOMIZE_DIR" ]; then

From 60f598b4c94d3545d28e7e535b2947645915eb14 Mon Sep 17 00:00:00 2001
From: Alexandros Kiousis <alexk@noc.grnet.gr>
Date: Thu, 18 Sep 2014 15:01:53 +0300
Subject: [PATCH 2/2] A hook that randomizes the system crontab

---
 example/hooks/cron_randomize | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 example/hooks/cron_randomize

diff --git a/example/hooks/cron_randomize b/example/hooks/cron_randomize
new file mode 100644
index 0000000..25f02a5
--- /dev/null
+++ b/example/hooks/cron_randomize
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+#
+# Copyright (C) 2011 Greek Research and Technology Network
+#
+
+set -e
+
+. common.sh
+
+debug set -x
+
+trap cleanup EXIT
+
+n=$RANDOM
+min=$(( n %= 30 ))
+
+echo "SHELL=/bin/sh" > ${TARGET}/etc/crontab
+echo "PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin" >> ${TARGET}/etc/crontab
+printf "\n" >> ${TARGET}/etc/crontab
+echo "# m h dom mon dow user  command" >> ${TARGET}/etc/crontab
+echo "$min * * * *      root    cd / && run-parts --report cron.hourly" >> ${TARGET}/etc/crontab
+echo "$((min + 7)) 6 * * *  root    test -x /usr/sbin/anacron || ( cd / && run-parts --report cron.daily )" >> ${TARGET}/etc/crontab
+echo "$((min + 13)) 6 * * 7 root    test -x /usr/sbin/anacron || ( cd / && run-parts --report cron.weekly )" >> ${TARGET}/etc/crontab
+echo "$((min + 24)) 6 1 * * root    test -x /usr/sbin/anacron || ( cd / && run-parts --report cron.monthly )" >> ${TARGET}/etc/crontab
+
+trap - EXIT
+exit 0