# -*- mode: sh; sh-basic-offset: 3; indent-tabs-mode: nil; -*- # # 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 # 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 ## 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 # create backup dirs, $vroot will be empty if no vsname was specified # and we will instead 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 [ $usevserver = yes ] then [ "$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 $hotdir fi ####################################################################### ## AUTHENTICATION # # one of three authentication methods: # 1. setting the user, so that /home/user/.my.cnf is used. # 2. specifying the user and password in the handler config, # which generates a temporary .my.cnf in /root/.my.cnf # 3. specify the config file with --defaults-extra-file # (this option DOESN'T WORK WITH MYSQLHOTCOPY) # # create .my.cnf # only if dbusername and dbpassword specified. # we create a tmp file because we don't want to # specify the password on the command line. defaultsfile="" if [ "$dbusername" != "" -a "$dbpassword" != "" ] then if [ $usevserver = yes ] then vhome=`$VSERVER $vsname exec getent passwd "root" | awk -F: '{print $6}'` home="$vroot$vhome" else home=`getent passwd "root" | awk -F: '{print $6}'` fi [ -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 > $mycnf <&1` code=$? 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 [ $usevserver = yes ] then execstr="$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 info "Initializing SQL dump method" if [ "$databases" == "all" ] then if [ $usevserver = yes ] then debug 'echo show databases | $VSERVER $vsname exec su $user -c \"$MYSQL $defaultsfile\" | grep -v Database' databases=`echo 'show databases' | $VSERVER $vsname exec su $user -c "$MYSQL $defaultsfile" | grep -v Database` if [ $? -ne 0 ] then fatal "Authentication problem, maybe user/password is wrong" fi else databases=`echo 'show databases' | su $user -c "$MYSQL $defaultsfile" | grep -v Database` if [ $? -ne 0 ] then fatal "Authentication problem, maybe user/password is wrong" fi fi fi for db in $databases do if [ $usevserver = yes ] then if [ "$compress" == "yes" ]; then execstr="$VSERVER $vsname exec $MYSQLDUMP $defaultsfile --lock-tables --complete-insert --add-drop-table --quick --quote-names $ignore $db | $GZIP > $vroot$dumpdir/${db}.sql.gz" else execstr="$VSERVER $vsname exec $MYSQLDUMP $defaultsfile --lock-tables --complete-insert --add-drop-table --quick --quote-names $ignore $db > $vroot$dumpdir/${db}.sql" fi else if [ "$compress" == "yes" ]; then execstr="$MYSQLDUMP $defaultsfile --lock-tables --complete-insert --add-drop-table --quick --quote-names $ignore $db | $GZIP > $dumpdir/${db}.sql.gz" else execstr="$MYSQLDUMP $defaultsfile --lock-tables --complete-insert --add-drop-table --quick --quote-names $ignore $db > $dumpdir/${db}.sql" fi 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 $db" fi fi done fi # clean up tmp config file if [ "$dbusername" != "" -a "$dbpassword" != "" ] 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