mirror of
https://0xacab.org/liberate/backupninja.git
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134 lines
4.3 KiB
Plaintext
134 lines
4.3 KiB
Plaintext
# -*- mode: sh; sh-basic-offset: 3; indent-tabs-mode: nil; -*-
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#
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# PostgreSQL handler script for backupninja
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#
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getconf backupdir /var/backups/postgres
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getconf databases all
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getconf compress yes
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getconf vsname
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localhost=`hostname`
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# Decide if the handler should operate on a vserver or on the host.
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# In the former case, check that $vsname exists and is running.
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local usevserver=no
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local vroot
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if [ $vservers_are_available = yes ]; then
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if [ -n "$vsname" ]; then
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# does it exist ?
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if ! vservers_exist "$vsname" ; then
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fatal "The vserver given in vsname ($vsname) does not exist."
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fi
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# is it running ?
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vservers_running $vsname || fatal "The vserver $vsname is not running."
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# everything ok
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info "Using vserver '$vsname'."
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usevserver=yes
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vroot="$VROOTDIR/$vsname"
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else
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info "No vserver name specified, actions will be performed on the host."
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fi
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fi
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# Make sure that the system to backup has the needed executables
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if [ $usevserver = yes ]; then
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debug "Examining vserver '$vsname'."
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if [ "$databases" == "all" ]; then
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[ -x "$vroot`$VSERVER $vsname exec which $PGSQLDUMPALL`" ] || \
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fatal "Can't find $PGSQLDUMPALL in vserver $vsname."
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else
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[ -x "$vroot`$VSERVER $vsname exec which $PGSQLDUMP`" ] || \
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fatal "Can't find $PGSQLDUMP in vserver $vsname."
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fi
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else
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if [ "$databases" == "all" ]; then
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[ -x "`which $PGSQLDUMPALL`" ] || \
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fatal "Can't find $PGSQLDUMPALL."
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else
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[ -x "`which $PGSQLDUMP`" ] || \
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fatal "Can't find $PGSQLDUMP."
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fi
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fi
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# create backup dir, the vroot variable will be empty if no vsname was specified
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# and will proceed to operate on the host
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[ -d $vroot$backupdir ] || (debug "mkdir -p $vroot$backupdir"; mkdir -p $vroot$backupdir)
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[ -d $vroot$backupdir ] || fatal "Backup directory '$vroot$backupdir' does not exist, and could not be created."
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# give backup dir the good uid and permissions
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# (in respect to the vserver, if $usevserver = yes)
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if [ $usevserver = yes ]; then
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pguid=`$VSERVER $vsname exec getent passwd $PGSQLUSER | @AWK@ -F: '{print $3}'`
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else
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pguid=`getent passwd $PGSQLUSER | @AWK@ -F: '{print $3}'`
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fi
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[ -n "$pguid" ] || \
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fatal "No user called $PGSQLUSER`[ $usevserver = no ] || echo \" on vserver $vsname\"`."
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debug "chown $pguid $vroot$backupdir"
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chown $pguid $vroot$backupdir
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debug "chmod 700 $vroot$backupdir"
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chmod 700 $vroot$backupdir
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# if $databases = all, use pg_dumpall
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if [ "$databases" == "all" ]; then
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if [ $usevserver = yes ]; then
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if [ "$compress" == "yes" ]; then
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execstr="$VSERVER $vsname exec su - $PGSQLUSER -c \"$PGSQLDUMPALL | $GZIP > $backupdir/${vsname}.sql.gz\""
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else
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execstr="$VSERVER $vsname exec su - $PGSQLUSER -c \"$PGSQLDUMPALL > $backupdir/${vsname}.sql\""
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fi
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else
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if [ "$compress" == "yes" ]; then
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execstr="su - $PGSQLUSER -c \"$PGSQLDUMPALL | $GZIP > $backupdir/${localhost}-all.sql.gz\""
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else
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execstr="su - $PGSQLUSER -c \"$PGSQLDUMPALL > $backupdir/${localhost}-all.sql\""
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fi
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fi
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debug "$execstr"
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if [ ! $test ]; then
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output=`eval $execstr 2>&1`
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code=$?
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if [ "$code" == "0" ]; then
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debug $output
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info "Successfully finished dump of pgsql cluster"
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else
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warning $output
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warning "Failed to dump pgsql cluster"
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fi
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fi
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# else use pg_dump on each specified database
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else
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for db in $databases; do
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if [ $usevserver = yes ]; then
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if [ "$compress" == "yes" ]; then
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execstr="$VSERVER $vsname exec su - $PGSQLUSER -c \"$PGSQLDUMP $db | $GZIP > $backupdir/${db}.sql.gz\""
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else
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execstr="$VSERVER $vsname exec su - $PGSQLUSER -c \"$PGSQLDUMP $db | > $backupdir/${db}.sql\""
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fi
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else
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if [ "$compress" == "yes" ]; then
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execstr="su - $PGSQLUSER -c \"$PGSQLDUMP $db | $GZIP > $backupdir/${db}.sql.gz\""
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else
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execstr="su - $PGSQLUSER -c \"$PGSQLDUMP $db > $backupdir/${db}.sql\""
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fi
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fi
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debug "$execstr"
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if [ ! $test ]; then
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output=`eval $execstr 2>&1`
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code=$?
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if [ "$code" == "0" ]; then
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debug $output
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info "Successfully finished dump of pgsql database ${db}"
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else
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warning $output
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warning "Failed to dump pgsql database ${db}"
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fi
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fi
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done
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fi
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return 0
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