Metacat

#!/bin/sh

#

# Backup files needed for metacat.  This script creates a temporary directory,

# backs up the postgres database, metacat data files, and ldap directory, and 

# then creates a gzipped tar file from those files.  It then writes the backup

# file to a DVD drive and then cleans up any old backup files.

#

# To run this file, install it in /usr/sbin or a similar location and add an

# entry in the root user's crontab to run the command periodically.  The

# following crontab entry would run it every night at 2:00 am

# 0 2 * * *       /usr/sbin/backup-metacat.sh >> $HOME/cron-output 2>&1

#

# This is really just an example script and may not work in your environment

# uless you modify it appropriately.

#

# 13 March 2006 Matt Jones

# Name of the metacat database in postgres to be backed up

DBNAME=metacat

# The day of the week on which the DVD is swapped (1-7, 1=Monday)

# This must be correct or else the write to DVD will not work

SWAPDAY=2

# Number of days of backups to keep online, anything older is removed

DAYSTOKEEP=7

# Device to be used for the DVD writer -- this may vary on your system

DVD=/dev/dvd

#

# Below here lie demons

#

# Set up our umask to protect files from prying eyes

umask 007

# Make a temp dir for the backed up files

TAG=`date +%F-%H%M%S`

DATADIR="/var/metacat"

ARCHROOT="/var/metacat/metacat-backup"

mkdir $ARCHROOT

chgrp postgres $ARCHROOT

chmod g+rwxs $ARCHROOT

ARCHNAME="metacat-backup-$TAG"

ARCHDIR="$ARCHROOT/$ARCHNAME"

mkdir $ARCHDIR

# Shut down the tomcat server so nobody else changes anything while we backup

/etc/init.d/tomcat stop

# Shut down ldap too

/etc/init.d/slapd stop

# Backup postgres

su - postgres -c "pg_dump $DBNAME > $ARCHDIR/metacat-postgres-backup.sql"

# Backup the data files

tar czf $ARCHDIR/datafiles-backup.tgz --exclude=$ARCHROOT $DATADIR

# Backup LDAP to an LDIF file

slapcat -l $ARCHDIR/$DBNAME-ldap.ldif

# Restart LDAP

/etc/init.d/slapd start

# Restart tomcat

/etc/init.d/tomcat start

# Tar up the archive and copy it to archive media

cd $ARCHROOT

tar czf $ARCHDIR.tgz $ARCHNAME

# Clean up the temp files

rm -rf $ARCHDIR

# Write the backup file to DVD

DAY=`date +%u`

DVDFLAG=-M

if [ $DAY == $SWAPDAY ] ; then

  DVDFLAG=-Z

fi

growisofs $DVDFLAG $DVD -R -J $ARCHDIR.tgz

# clean up any of the backup files that are older than DAYSTOKEEP

find $ARCHROOT -mtime +$DAYSTOKEEP -exec rm -f {} \;