#!/usr/bin/env bash
# Copyright 2015 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
function start()
{
unset gid
# accept "-G gid" option
while getopts "G:" opt; do
case ${opt} in
G) gid=${OPTARG};;
*):;;
esac
done
shift $((OPTIND - 1))
# prepare /etc/exports
for i in "$@"; do
# fsid=0: needed for NFSv4
echo "$i *(rw,fsid=0,insecure,no_root_squash)" >> /etc/exports
if [ -v gid ] ; then
chmod 070 "$i"
chgrp "$gid" "$i"
fi
# move index.html to here
/bin/cp /tmp/index.html "$i/"
chmod 644 "$i/index.html"
echo "Serving $i"
done
# start rpcbind if it is not started yet
/usr/sbin/rpcinfo 127.0.0.1 > /dev/null; s=$?
if [ $s -ne 0 ]; then
echo "Starting rpcbind"
/usr/sbin/rpcbind -w
fi
mount -t nfsd nfsd /proc/fs/nfsd
# -V 3: enable NFSv3
/usr/sbin/rpc.mountd -N 2 -V 3
/usr/sbin/exportfs -r
# -G 10 to reduce grace time to 10 seconds (the lowest allowed)
/usr/sbin/rpc.nfsd -G 10 -N 2 -V 3
/usr/sbin/rpc.statd --no-notify
echo "NFS started"
}
function stop()
{
echo "Stopping NFS"
/usr/sbin/rpc.nfsd 0
/usr/sbin/exportfs -au
/usr/sbin/exportfs -f
kill "$( pidof rpc.mountd )"
umount /proc/fs/nfsd
echo > /etc/exports
exit 0
}
# rpc.statd has issues with very high ulimits
ulimit -n 65535
trap stop TERM
start "$@"
# Ugly hack to do nothing and wait for SIGTERM
while true; do
sleep 5
done