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