中小站点简单备份策略
基于drupal的中小行网站，我们可以使用backup_migrate模块，该模块提供了定期备份的功能，备份的时间、保留多少个备份等等设置，设置好之后，定期执行cron即可备份成功。 一般的Drupal小站，我们只需使用svn即可，在服务器端，我们把备份好的数据提交到svn，就可以达到备份的目的。由于Drupal的备份模块可以设置备份保留的文件份数，因此不会造成太多的备份文件，从而导致svn很大。
下面是一个简单的备份脚本，放置到站点根目录，然后加到crontab每天执行即可。
| #!/bin/bash date #start dateDRUSH_PHP=/bin/php #php pathexport DRUSH_PHP drush cronsvn st sites/default/files/backup_migrate/scheduled/ | grep '^!' | awk '{print $2}' | xargs svn delete --forcesvn add sites/default/files/backup_migrate/scheduled/*svn ci sites/default/files/backup_migrate/scheduled/ -m 'add backup files'date #end date |
crontab的设置如下
大型站点MySQL备份策略
如果是数据库稍大的站点，使用svn临时备份就略显单薄，这时需要使用MySQL备份策略，一般情况下我们需要把整个数据库都备份压缩，然后定期转移到备份数据库或者放到其他的云服务器，这里给出一个简单的PHP示例代码。
| #!/usr/bin/php -q<?php $to = "gaoxinzhao@gmail.com";$hostname = exec('/bin/hostname');$mycnf = "/home/robbin/.my.cnf"; $ignore = array('information_schema', 'test', 'mysql', 'wdcpdb'); function trimw($str) { $str = str_replace(array("n", "r", "t", " ", "o", "xOB"), '', $str); return $str;} if (!file_exists($mycnf)) { mail($to, "No .my.cnf exists on $hostname", "MySQL cannot dump because .my.cnf is missing on $hostname .") ; exit("cant get user creds");} $myconf = file_get_contents($mycnf) or die( "Failed to open bmesh_admin's .my.cnf" ); preg_match( "/buser(.*)/", $myconf, $matches ) or die( mail($to, "No username in .my.cnf on $hostname", "MySQL cannot dump on $hostname")); $usr = (explode('=', $matches[0]));$user = trimw($usr[1]); preg_match( "/bpassword(.*)/", $myconf, $matches ) or die( mail($to, "No password in .my.cnf on $hostname", "MySQL cannot dump on $hostname")); $pass = (explode('=', $matches[0]));$password = trimw($pass[1]); mysql_connect("localhost",$user,$password) or die ("could not connect: " . mysql_error());mysql_select_db("mysql");$result = mysql_query("show databases"); $bpath = "/home/robbin/backup/mysql";$btime = date("Y-m-d H:i:s");$bstamp = strtotime($btime);$byear = date("Y", $bstamp);$bmonth = date("m", $bstamp);$bday = date("d", $bstamp);$btod = date("H-i-s", $bstamp); while ($res = mysql_fetch_array($result)){ $myDb = $res["Database"]; if (in_array($myDb, $ignore)) continue; $mdir = "$bpath/$byear/$bmonth/$bday/$btod/$myDb"; $out = `mkdir -p $mdir`; $myFile = $myDb . ".sql"; $bldCmd = "cd $mdir ; "; $bldCmd .= "mysqldump -u$user -p$password --single-transaction --add-drop-table -R -c -Q $myDb > $myFile ;"; //$bldCmd .= "chmod 644 $myFile ; "; //$bldCmd .= "chown root:root $myFile ; "; $bldCmd .= "gzip -9 $myFile"; print "Backing up $myDbn"; print "Securing $myDbn"; $out = `$bldCmd`;}$out = `chmod 700 $bpath/$byear`;print "$outn";print "Backups are in $bpathn"; |
