115 lines
3.0 KiB
Bash
115 lines
3.0 KiB
Bash
#!/bin/sh
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# Maintenance shell script to vacuum and backup database
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# Put this in /usr/local/etc/periodic/daily, and it will be run
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# every night
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#
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# Written by Palle Girgensohn <girgen@pingpong.net>
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#
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# In public domain, do what you like with it,
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# and use it at your own risk... :)
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#
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# Define these variables in either /etc/periodic.conf or
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# /etc/periodic.conf.local to override the default values.
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#
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# daily_pgsql_backup_enable="YES" # do backup of all databases
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# daily_pgsql_backup_enable="foo bar db1 db2" # only do backup of a limited selection of databases
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# daily_pgsql_vacuum_enable="YES" # do vacuum
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# If there is a global system configuration file, suck it in.
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#
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if [ -r /etc/defaults/periodic.conf ]
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then
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. /etc/defaults/periodic.conf
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source_periodic_confs
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fi
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: ${daily_pgsql_user:="%%PG_USER%%"}
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: ${daily_pgsql_port:=5432}
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: ${daily_pgsql_vacuum_args:="-U ${daily_pgsql_user} -p ${daily_pgsql_port} -qaz"}
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: ${daily_pgsql_pgdump_args:="-U ${daily_pgsql_user} -p ${daily_pgsql_port} -bF c"}
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: ${daily_pgsql_pgdumpall_globals_args:="-U ${daily_pgsql_user} -p ${daily_pgsql_port}"}
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# backupdir is relative to ~pgsql home directory unless it begins with a slash:
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: ${daily_pgsql_backupdir:="~${daily_pgsql_user}/backups"}
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: ${daily_pgsql_savedays:="7"}
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# allow '~´ in dir name
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eval backupdir=${daily_pgsql_backupdir}
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rc=0
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pgsql_backup() {
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# daily_pgsql_backupdir must be writeable by user %%PG_USER%%
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# ~%%PG_USER%% is just that under normal circumstances,
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# but this might not be where you want the backups...
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if [ ! -d ${backupdir} ] ; then
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echo Creating ${backupdir}
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mkdir -m 700 ${backupdir}; chown ${daily_pgsql_user} ${backupdir}
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fi
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echo
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echo "PostgreSQL backups"
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# Protect the data
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umask 077
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rc=$?
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now=`date "+%Y-%m-%dT%H:%M:%S"`
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file=${daily_pgsql_backupdir}/pgglobals_${now}
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su -l ${daily_pgsql_user} -c \
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"umask 077; pg_dumpall -g ${daily_pgsql_pgdumpall_globals_args} | gzip -9 > ${file}.gz"
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db=$1
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while shift; do
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echo -n " $db"
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file=${backupdir}/pgdump_${db}_${now}
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su -l ${daily_pgsql_user} -c "umask 077; pg_dump ${daily_pgsql_pgdump_args} -f ${file} ${db}"
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[ $? -gt 0 ] && rc=3
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db=$1
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done
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if [ $rc -gt 0 ]; then
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echo
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echo "Errors were reported during backup."
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fi
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# cleaning up old data
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find ${backupdir} \( -name 'pgdump_*' -o -name 'pgglobals_*' -o -name '*.dat.gz' -o -name 'toc.dat' \) \
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-a -mtime +${daily_pgsql_savedays} -delete
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echo
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}
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case "$daily_pgsql_backup_enable" in
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[Yy][Ee][Ss])
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dbnames=`su -l ${daily_pgsql_user} -c "umask 077; psql -U ${daily_pgsql_user} -p ${daily_pgsql_port} -q -t -A -d template1 -c SELECT\ datname\ FROM\ pg_database\ WHERE\ datname!=\'template0\'"`
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pgsql_backup $dbnames
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;;
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[Nn][Oo])
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;;
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"")
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;;
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*)
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pgsql_backup $daily_pgsql_backup_enable
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;;
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esac
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case "$daily_pgsql_vacuum_enable" in
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[Yy][Ee][Ss])
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echo
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echo "PostgreSQL vacuum"
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su -l ${daily_pgsql_user} -c "vacuumdb ${daily_pgsql_vacuum_args}"
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if [ $? -gt 0 ]
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then
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echo
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echo "Errors were reported during vacuum."
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rc=3
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fi
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;;
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esac
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exit $rc
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