#!/bin/bash

# lxc: linux Container library

# Authors:
# Feng Li <lifeng68@huawei.com>

# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.

# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

set -ex

cleanup() {
	set +e
	lxc-destroy -n lxc-test-rootfs -f
	if [ $PHASE != "done" ]; then
		echo "rootfs test failed at $PHASE"
		exit 1
	fi
	echo "rootfs test passed"
	exit 0
}

PHASE=setup
trap cleanup EXIT

lxc-destroy -n lxc-test-rootfs -f || true
lxc-create -t busybox -n lxc-test-rootfs

PHASE=ro_rootfs
echo "Starting phase $PHASE"
config=/var/lib/lxc/lxc-test-rootfs/config
sed -i '/lxc.rootfs.options/d' $config
echo "lxc.rootfs.options = ro" >> $config

lxc-start -n lxc-test-rootfs
pid=`lxc-info -n lxc-test-rootfs -p -H`
ro=0
mkdir /proc/$pid/root/rotest || ro=1
[ $ro -ne 0 ]

lxc-stop -n lxc-test-rootfs -k
PHASE=rw_rootfs
echo "Starting phase $PHASE"
sed -i '/lxc.rootfs.options/d' $config
echo "lxc.rootfs.options = rw" >> $config
lxc-start -n lxc-test-rootfs
pid=`lxc-info -n lxc-test-rootfs -p -H`
ro=0
mkdir /proc/$pid/root/rwtest || ro=1
[ $ro -ne 1 ]
rmdir /proc/$pid/root/rwtest
ro=0

PHASE=done