backupninja/handlers/mysql
2005-01-03 22:22:58 +00:00

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#
# mysql handler script for backupninja
#
getconf backupdir /var/backups/mysql
getconf databases all
getconf compress yes
getconf dbusername
getconf dbpassword
getconf dbhost localhost
getconf hotcopy no
getconf sqldump no
getconf user root
# create backup dirs
[ -d $backupdir ] || mkdir -p $backupdir
[ -d $backupdir ] || fatal "Backup directory '$backupdir'"
hotdir="$backupdir/hotcopy"
dumpdir="$backupdir/sqldump"
[ "$sqldump" == "no" -o -d $dumpdir ] || mkdir -p $dumpdir
[ "$hotcopy" == "no" -o -d $hotdir ] || mkdir -p $hotdir
# create .my.cnf
# (we do this because we don't want to have to specify the password on the command line
# because then anyone would be able to see it with a 'ps aux'. instead, we create a
# temporary ~/.my.cnf in root's home directory).
if [ "$dbusername" != "" ]; then
home=`grep '^root' /etc/passwd | awk -F: '{print $6}'`
[ -d $home ] || fatal "Can't find root's home directory ($home)."
mycnf="$home/.my.cnf"
if [ -f $mycnf ]; then
# rename temporarily
tmpcnf="$home/my.cnf.disable"
debug "mv $mycnf $tmpcnf"
mv $mycnf $tmpcnf
fi
oldmask=`umask`
umask 077
cat > $mycnf <<EOF
# auto generated backupninja mysql conf
[mysql]
user=$dbusername
password=$dbpassword
[mysqldump]
user=$dbusername
password=$dbpassword
[mysqlhotcopy]
user=$dbusername
password=$dbpassword
EOF
umask $oldmask
fi
## HOT COPY
if [ "$hotcopy" == "yes" ]; then
if [ "$databases" == "all" ]; then
execstr="$MYSQLHOTCOPY --quiet --allowold --regexp /.\*/./.\*/ $hotdir"
debug "su $user -c '$execstr'"
if [ ! $test ]; then
output=`su $user -c "$execstr" 2>&1`
code=$?
if [ "$code" == "0" ]; then
debug $output
info "Successfully finished hotcopy of all mysql databases"
else
warning $output
warning "Failed to hotcopy all mysql databases"
fi
fi
else
for db in $databases; do
execstr="$MYSQLHOTCOPY --allowold $db $hotdir"
debug "su $user -c '$execstr'"
if [ ! $test ]; then
output=`su $user -c "$execstr" 2>&1`
code=$?
if [ "$code" == "0" ]; then
debug $output
info "Successfully finished hotcopy of mysql database $db"
else
warning $output
warning "Failed to hotcopy mysql database $db"
fi
fi
done
fi
fi
## SQL DUMP
if [ "$sqldump" == "yes" ]; then
if [ "$databases" == "all" ]; then
databases=`echo 'show databases' | su $user -c "$MYSQL" | grep -v Database`
fi
for db in $databases; do
execstr="$MYSQLDUMP --lock-tables --complete-insert --add-drop-table --quick --quote-names $db > $dumpdir/${db}.sql"
debug "su $user -c '$execstr'"
if [ ! $test ]; then
output=`su $user -c "$execstr" 2>&1`
code=$?
if [ "$code" == "0" ]; then
debug $output
info "Successfully finished dump of mysql database $db"
else
warning $output
warning "Failed to dump mysql databases $db"
fi
fi
done
if [ "$compress" == "yes" ]; then
output=`$GZIP -f $dumpdir/*.sql 2>&1`
debug $output
fi
fi
if [ "$dbusername" != "" ]; then
## clean up tmp config file
debug "rm $mycnf"
rm $mycnf
if [ -f "$tmpcnf" ]; then
debug "mv $tmpcnf $mycnf"
mv $tmpcnf $mycnf
fi
fi
return 0