# # mysql handler script for backupninja # getconf backupdir /var/backups/mysql getconf databases all getconf ignores getconf dbhost localhost getconf hotcopy no getconf sqldump no getconf compress yes getconf vsname # authentication: getconf user getconf dbusername getconf dbpassword getconf configfile /etc/mysql/debian.cnf if [ "$user" == "" ]; then userset=false; user=root; else userset=true; userhome=`getent passwd "$user" | awk -F: '{print $6}'` [ -f $userhome/.my.cnf ] || fatal "Can't find config file in $userhome/.my.cnf" fi ## Prepare ignore part of the command ## This only works for mysqldump at the moment ignore='' for i in $ignores; do ignore="$ignore --ignore-table=$i" done # If vservers are configured, decide if the handler should # use them or if it should just operate on the host if [ "$vservers" = "yes" ] then if [ ! -z $vsname ] then info "Using vserver '$vsname'" usevserver=1 else info "No vserver name specified, actions will be performed on the host" fi fi # If needed, make sure that the specified vserver exists and is running. if [ $usevserver ] then info "Examining vserver '$vsname'" # does it exist ? vroot="$VROOTDIR/$vsname" [ -d $vroot ] || fatal "vserver '$vsname' does not exist at '$vroot'" # is it running ? $VSERVERINFO -q $vsname RUNNING if [ $? -ne 0 ] then fatal "vserver $vsname is not running." fi fi # create backup dirs, the vroot variable will be empty if no vsname was specified # and will proceed to operate on the host [ -d $vroot$backupdir ] || mkdir -p $vroot$backupdir [ -d $vroot$backupdir ] || fatal "Backup directory '$vroot$backupdir'" hotdir="$backupdir/hotcopy" dumpdir="$backupdir/sqldump" if [ $usevserver ] then [ "$sqldump" == "no" -o -d $vroot$dumpdir ] || $VSERVER $vsname exec mkdir -p $dumpdir [ "$hotcopy" == "no" -o -d $vroot$hotdir ] || $VSERVER $vsname exec mkdir -p $hotdir else [ "$sqldump" == "no" -o -d $dumpdir ] || mkdir -p $dumpdir [ "$hotcopy" == "no" -o -d $hotdir ] || mkdir -p $hotdir fi ####################################################################### ## AUTHENTICATION # # one of three authentication methods: # 1. setting the user, so that /home/user/.my.cnf is used. # 2. specifying the user and password in the handler config, # which generates a temporary .my.cnf in /root/.my.cnf # 3. specify the config file with --defaults-file # (this option DOESN'T WORK WITH MYSQLHOTCOPY) # # create .my.cnf # only if dbusername and dbpassword specified. # we create a tmp file because we don't want to # specify the password on the command line. defaultsfile="" if [ "$dbusername" != "" -a "$dbpassword" != "" ]; then home=`getent passwd "root" | 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 $oldmask defaultsfile="--defaults-file=$mycnf" elif [ "$userset" == "false" ]; then # if user is set, don't use $configfile defaultsfile="--defaults-file=$configfile" fi ####################################################################### ## HOT COPY if [ "$hotcopy" == "yes" ]; then if [ "$databases" == "all" ]; then if [ $usevserver ] then execstr="$VSERVER $vsname exec $MYSQLHOTCOPY --quiet --allowold --regexp /.\*/./.\*/ $hotdir" else execstr="$MYSQLHOTCOPY --quiet --allowold --regexp /.\*/./.\*/ $hotdir" fi 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 if [ $usevserver ] then execstr="$VSERVER $vsname exec $MYSQLHOTCOPY --allowold $db $hotdir" else execstr="$MYSQLHOTCOPY --allowold $db $hotdir" fi 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 if [ $usevserver ] then databases=`echo 'show databases' | $VSERVER $vsname exec su $user -c "$MYSQL $defaultsfile" | grep -v Database` else databases=`echo 'show databases' | su $user -c "$MYSQL $defaultsfile" | grep -v Database` fi fi for db in $databases; do if [ $usevserver ] then execstr="$VSERVER $vsname exec $MYSQLDUMP $defaultsfile --lock-tables --complete-insert --add-drop-table --quick --quote-names $ignore $db > $vroot$dumpdir/${db}.sql" else execstr="$MYSQLDUMP $defaultsfile --lock-tables --complete-insert --add-drop-table --quick --quote-names $ignore $db > $dumpdir/${db}.sql" fi 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 $vroot$dumpdir/*.sql 2>&1` debug $output fi fi # clean up tmp config file if [ "$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