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#!/bin/sh
#
# $FreeBSD$
#
# Maintenance shell script to vacuum and backup database
# Put this in /usr/local/etc/periodic/daily, and it will be run
# every night
#
# Written by Palle Girgensohn <girgen@pingpong.net>
#
# In public domain, do what you like with it,
# and use it at your own risk... :)
#
# Define these variables in either /etc/periodic.conf or
# /etc/periodic.conf.local to override the default values.
#
# daily_pgsql_backup_enable="YES" # do backup of all databases
# daily_pgsql_backup_enable="foo bar db1 db2" # only do backup of a limited selection of databases
# daily_pgsql_vacuum_enable="YES" # do vacuum
daily_pgsql_vacuum_args="-z"
daily_pgsql_pgdump_args="-b -F c"
# backupdir is relative to ~pgsql home directory unless it begins with a slash:
daily_pgsql_backupdir="~pgsql/backups"
daily_pgsql_savedays="7"
# If there is a global system configuration file, suck it in.
#
if [ -r /etc/defaults/periodic.conf ]
then
. /etc/defaults/periodic.conf
source_periodic_confs
fi
# allow '~´ in dir name
eval backupdir=${daily_pgsql_backupdir}
rc=0
pgsql_backup() {
# daily_pgsql_backupdir must be writeable by user pgsql
# ~pgsql is just that under normal circumstances,
# but this might not be where you want the backups...
if [ ! -d ${backupdir} ] ; then
echo Creating ${backupdir}
mkdir -m 700 ${backupdir}; chown pgsql ${backupdir}
fi
echo
echo "PostgreSQL backups"
# Protect the data
umask 077
rc=$?
now=`date "+%Y-%m-%dT%H:%M:%S"`
file=${daily_pgsql_backupdir}/pgglobals_${now}
su -l pgsql -c "umask 077; pg_dumpall -g | gzip -9 > ${file}.gz"
db=$1
while shift; do
echo -n " $db"
file=${backupdir}/pgdump_${db}_${now}
su -l pgsql -c "umask 077; pg_dump ${daily_pgsql_pgdump_args} -f ${file} ${db}"
[ $? -gt 0 ] && rc=3
db=$1
done
if [ $rc -gt 0 ]; then
echo
echo "Errors were reported during backup."
fi
# cleaning up old data
find ${backupdir} \( -name 'pgdump_*' -o -name 'pgglobals_*' \) \
-a -mtime +${daily_pgsql_savedays} -delete
echo
}
case "$daily_pgsql_backup_enable" in
[Yy][Ee][Ss])
dbnames=`su -l pgsql -c "umask 077; psql -q -t -A -d template1 -c SELECT\ datname\ FROM\ pg_database\ WHERE\ datname!=\'template0\'"`
pgsql_backup $dbnames
;;
[Nn][Oo])
;;
"")
;;
*)
pgsql_backup $daily_pgsql_backup_enable
;;
esac
case "$daily_pgsql_vacuum_enable" in
[Yy][Ee][Ss])
echo
echo "PostgreSQL vacuum"
su -l pgsql -c "vacuumdb -a -q ${daily_pgsql_vacuum_args}"
if [ $? -gt 0 ]
then
echo
echo "Errors were reported during vacuum."
rc=3
fi
;;
esac
exit $rc
|
