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#!/bin/bash
#------------------------------------------------------------------
# Copyright (c) 2006-2011 Gluster, Inc. <http://www.gluster.com>
# This file is part of Gluster Management Gateway.
#
# Gluster Management Gateway is free software; you can redistribute
# it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation; either
# version 3 of the License, or (at your option) any later version.
#
# Gluster Management Gateway 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see
# <http://www.gnu.org/licenses/>.
#------------------------------------------------------------------
# Variables
USAGE_ERR=1
FUSE_ERR=2
CHKCONFIG_ERR=3
TAR_ERR=4
GMGBE_ROOT_DIR="/opt/glustermg"
function quit()
{
echo ${1}
echo
exit ${2}
}
function pre()
{
modprobe -q fuse
if ! lsmod | grep -qw fuse; then
quit "fuse kernel module is not found!" ${FUSE_ERR}
fi
if [ ! -f /sbin/chkconfig ]; then
quit "/sbin/chkconfig not found!" ${CHKCONFIG_ERR}
fi
if ! which python 1>/dev/null 2>/dev/null; then
quit "python not found" -2
fi
if python -c 'import sys; sys.exit(sys.version_info >= (2,4,0) and sys.version_info < (3,0,0))'; then
python -c 'import sys; print "Python", sys.version'
quit "python version 2.4+ and less than 3.0 is required" -2
fi
if ! which perl 1>/dev/null 2>/dev/null; then
quit "perl not found" -2
fi
if ! perl -MRRDs -e 1 2>/dev/null; then
quit "perl::RRDs not found" -2
fi
if ! which smbd 1>/dev/null 2>/dev/null; then
quit "samba not found" -2
fi
if [ ! -f /usr/lib64/libxml2.so.2 ]; then
quit "libxml2 not found" -2
fi
}
function check_tar_gz()
{
file $GMGBE_ARCHIVE_PATH | grep "gzip" > /dev/null;
if [ $? != 0 ] ; then
quit "The given filename is not a gunzipped tarball. The file name must be of the form glustermg-backend-version.tar.gz" ${TAR_ERR}
fi
}
function get_gmg_version()
{
# Format is /path/to/glustermg-backend-version.tar.gz
# Remove prefix
PART1=${GMGBE_ARCHIVE_PATH#*glustermg-backend-}
# Remove suffix
GMG_VERSION=${PART1%.tar.gz}
GMGBE_DIR="${GMGBE_ROOT_DIR}/${GMG_VERSION}/backend";
}
function make_dirs()
{
mkdir -p $GMGBE_DIR /var/lib/rrd
}
function extract_archive()
{
tar xvfz ${GMGBE_ARCHIVE_PATH}
# The tar contains files in path glustermg-backend-version/gmg-scripts/*.py
SRC_DIR=glustermg-backend-${GMG_VERSION}
mv ${SRC_DIR}/gmg-scripts/* ${GMGBE_DIR}
rm -rf ${SRC_DIR}
}
function create_links()
{
ln -fs ${GMGBE_DIR}/multicast-discoverd.py /usr/sbin/multicast-discoverd
ln -fs ${GMGBE_DIR}/gluster_cifs_volume_startup.py /usr/sbin/gluster_cifs_volume_startup
ln -fs ${GMGBE_DIR}/multicast-discoverd.init.d /etc/init.d/multicast-discoverd
ln -fs ${GMGBE_DIR}/gluster-volume-settings.init.d /etc/init.d/gluster-volume-settings
}
function post()
{
if [ -f /etc/sudoers ]; then
chmod 644 /etc/sudoers
sed -i '/^Defaults.*requiretty/d' /etc/sudoers
chmod 0440 /etc/sudoers
fi
if ! grep -q rrd_cpu.pl /etc/crontab; then
echo "*/5 * * * * root /opt/glustermg/${GMG_VERSION}/backend/rrd_cpu.pl" >> /etc/crontab
fi
if ! grep -q rrd_mem.pl /etc/crontab; then
echo "*/5 * * * * root /opt/glustermg/${GMG_VERSION}/backend/rrd_mem.pl" >> /etc/crontab
fi
if ! grep -q rrd_net.pl /etc/crontab; then
echo "*/5 * * * * root /opt/glustermg/${GMG_VERSION}/backend/rrd_net.pl" >> /etc/crontab
fi
/sbin/chkconfig --add multicast-discoverd
/sbin/chkconfig --level 345 multicast-discoverd on
if /etc/init.d/multicast-discoverd status >/dev/null; then
/etc/init.d/multicast-discoverd restart
else
/etc/init.d/multicast-discoverd start
fi
/etc/init.d/crond reload
/sbin/chkconfig smb on
/sbin/chkconfig --add gluster-volume-settings
}
#-----------------------------------
# Main Action Body
#-----------------------------------
if [ $# -ne 1 ]; then
quit "Usage: $0 <path to glustermg-backend-version.tar.gz>" ${USAGE_ERR}
fi
GMGBE_ARCHIVE_PATH=${1}
pre
check_tar_gz
get_gmg_version
make_dirs
extract_archive
create_links
post
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