#!/bin/bash
VOLNAME=
CONF=
IP=
LOG=
DBGLVL=
OPT=
FILE1=
trap cleanup SIGHUP SIGINT SIGTERM
if [ $EUID -ne 0 ]; then
echo "You have to be root to run this script"
exit 1
fi
function usage {
echo " Usage : nfs-ganesha.sh [-l <logfile>][-n <dbg_lvl>] -v <volname> -i <ganesha_host_ip> -f <config_file> -o <start|stop>
[-h] display this help
[-l <logfile>] set the logfile for the daemon
[-n <dbg_lvl>] set the verbosity level
dbg_lvl options NIV_NULL, NIV_MAJ, NIV_CRIT, NIV_EVENT, NIV_DEBUG, NIV_MID_DEBUG, NIV_FULL_DEBUG
-v <volname> name of the volume to be exported
-i <ganesha_host_ip> IP of the ganesha host
-f <config_file> set the config file to be used
-o <start|stop> start or stop ganesha server
===========Default Values=============
LogFile : /tmp/nfs-ganesha.log
DebugLevel : NIV_EVENT"
}
while getopts "hf:i:l:n:v:o: -l help" OPTION
do
case $OPTION in
f) CONF=$OPTARG
;;
i) IP=$OPTARG
;;
l) LOG=$OPTARG
;;
n) DBGLVL=$OPTARG
;;
h) usage
exit 1
;;
v) VOLNAME=$OPTARG
;;
o) OPT=$OPTARG
;;
esac
done
function cleanup ()
{
if [ -f /tmp/old-ganesha.conf ]
then cp /tmp/old-ganesha.conf $CONF
exit 1
fi
}
function check_for_stop()
{
if echo $OPT | grep -i -q "stop"
then stop_ganesha
fi
}
function check_usage()
{
if [ "$VOLNAME" = "" ]
then
usage
exit 1
fi
if [ "$CONF" = "" ]
then
usage
exit 1
fi
if [ "$IP" = "" ]
then
usage
exit 1
fi
if [ "$OPT" = "" ]
then
usage
exit 1
fi
}
function check_ip {
if [[ ! $IP =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
echo "Invalid IP , please enter the correct IP of the ganesha host."
usage
exit 1
fi
}
function check_volname
{
if ! ls /var/lib/glusterd/vols | grep -q "$VOLNAME" ; then
echo "Volume doesn't exist. Please enter a valid volume name."
exit 1
fi
}
function check_conf
{
if ! [ -f "$CONF" ]; then
echo "The config_file $CONF doesn't exist."
usage
exit 1
else
if ! [ -s "$CONF" ]; then
echo "The cofig_file $CONF is empty "
exit 1
fi
fi
}
function check_option
{
if ! echo $OPT | grep -i -q -e "start" -q -e "stop"
then
echo "Invalid value for option 'o': start or stop expected"
exit 1
else if echo $OPT | grep -i -q "start"
then
OPT="start"
else
OPT="stop"
fi
fi
}
function check_debug
{
if [ "$DBGLVL" = "" ] ; then
DBGLVL="NIV_EVENT"
else
if ! echo $DBGLVL | grep -q -e " NIV_NULL" -q -e "NIV_MAJOR" -q -e " NIV_CRIT" -q -e "NIV_EVENT" -q -e "NIV_DEBUG" -q -e "NIV_FULL_DEBUG"
then
echo "Invalid value for option 'n': NIV_NULL, NIV_MAJ, NIV_CRIT, NIV_EVENT, NIV_DEBUG, NIV_MID_DEBUG or NIV_FULL_DEBUG expected."
exit 1
fi
fi
}
function check_logfile
{
if [ "$LOG" = "" ]; then
LOG="/tmp/nfs-ganesha.log"
else if [ -f $LOG ]
then
cp $LOG /tmp/old-ganesha.log
FILE1="1"
fi
fi
}
function call_checks
{
check_ip
check_conf
cp $CONF /tmp/old-ganesha.conf
check_debug
check_logfile
check_option
check_volname
}
function check_glusterd()
{
if ! ps aux | grep -q -e "[g]lusterd$" -q -e "[g]lusterd.pid"
then
echo "glusterd not started , please start glusterd. "
exit 1
fi
}
function check_bricks()
{
gluster volume status $VOLUME | grep -q "N/A"
if [ "$?" -eq 0 ]
then
echo "Brick(s) not online , please check $VOLUME volume status"
exit 1
fi
}
function check_glusternfs
{
if echo "$(ls /var/lib/glusterd/vols | wc -l)" | grep -q "1" ; then
if ps aux | grep -q "[g]luster/nfs" ; then
echo "gluster-nfs server is active, needs to be disabled to proceed. "
while true; do
read -p "Do you wish to disable gluster-nfs server ? [Y\N]" yn
case $yn in
[Yy]* ) gluster volume set $VOLNAME nfs.disable ON >/dev/null 2>/dev/null; break;;
[Nn]* ) exit 1;;
* ) echo "Please answer yes or no.";;
esac
done
sleep 2
if ps aux | grep -q "[g]luster/nfs" ; then
echo "Volume set unsuccessful , please try disabling gluster-nfs server "
exit 1
fi
sleep 2
if rpcinfo -p | grep -q -e "nfs_acl" ; then
echo " gluster-nfs ports still in use; please try again"
exit 1
fi
fi
else
if ps aux | grep -q "[g]luster/nfs"; then
echo "Please disable gluster-nfs servers on all the volumes"
exit 1
fi
fi
}
function check_kernelnfs()
{
service nfs status | grep -q -e "dead" -q -e "stopped" -q -e "disabled"
if [ "$?" -eq 1 ]; then
echo "kernel-NFS server is active , it needs to disabled to proceed. "
while true; do
read -p "Do you wish to disable kernel-nfs server ? [Y\N]" yn
case $yn in
[Yy]* ) service nfs stop; break;;
[Nn]* ) exit 1;;
* ) echo "Please answer yes or no.";;
esac
done
sleep 2
service nfs status | grep -q -e "dead" -q -e "stopped" -q -e "inactive" >>/dev/null
if [ "$?" -eq 1 ]; then
echo " kernel-NFS server couldn't be disabled , please try again"
exit 1
else
echo "kernel-NFS server successfully disabled"
fi
fi
}
function check_volstart()
{
if ! cat /var/lib/glusterd/vols/$1/info | grep -q "status=1"
then
echo "Volume $1 is not started, please start the volume."
exit 1
fi
}
function check_ganesha
{
if ps aux | grep -q "[g]anesha.nfsd" ; then
echo "NFS-ganesha server is already active , nothing to do."
exit 1
fi
}
function check_ports
{
if netstat -an | grep -q "2049$" ; then
echo "Port 2049 is already in use , exiting"
exit 1
fi
}
function check_fsal
{
if ! ls /usr/lib64/ganesha | grep -q "libfsalgluster.so" ; then
echo "Cannot find shared object libfsalgluster.so , exiting"
exit 1
fi
}
function start_ganesha
{
check_ganesha
#check_rpms
check_fsal
check_glusterd
check_volstart $1
check_kernelnfs
check_glusternfs $1
check_ports
check_conf $3
check_bricks $1
sed -i /^[[:space:]]*\#/!s/volume.*/"volume=$1,hostname=$2\";"/ $3
sed -i /^[[:space:]]*\#/!s/Pseudo.*/Pseudo="\"\/$1\";"/ $3
sed -i s/Path.*/Path="\"\/$1\";"/ $3
sed -i 's/\r//g' $3
/usr/bin/ganesha.nfsd -f $CONF -L $LOG -N $DBGLVL -d >/dev/null 2>/dev/null
sleep 5
}
function stop_ganesha
{
if ! ps aux | grep -q "[g]anesha.nfsd" ; then
echo "NFS-ganesha server already inactive,nothing to do."
exit 1
fi
kill -9 `cat /var/run/ganesha.pid`
if ps aux | ganesha.nfsd ; then
if rpcinfo -p | grep -q -e "nfs" ; then
echo "NFS-ganesha server could not be stopped, please try again"
fi
else
echo " NFS-ganesha server is now inactive."
exit 0
fi
}
function check_for_stop()
{
if echo $OPT | grep -i -q "stop"
then stop_ganesha
fi
}
check_for_stop
check_usage
call_checks
if [ "$OPT" = "start" ]
then
start_ganesha $VOLNAME $IP $CONF
if ! ps aux | grep -q "[g]anesha.nfsd" ; then
start_ganesha $VOLNAME $IP $CONF
fi
sleep 5
if ! ps aux | grep -q "[g]anesha.nfsd"
then
if [ "$FILE1" = "1" ]
then
cp /tmp/old-ganesha.log $LOG
rm -rf /tmp/ganesha.log
fi
cp /tmp/old-ganesha.conf $CONF
rm -rf /tmp/ganesha.conf
echo "Failed to start NFS-ganesha server , please see $LOG for details"
else
echo ""
echo "NFS-ganesha server started."
echo "============Volume exports============"
showmount -e $IP
echo "======================================"
rm -rf /tmp/old-ganesha.conf
fi
fi
if [ "$OPT" = "stop" ]
then
stop_ganesha
exit 0
fi