• 使用windos模拟搭建web集群(二)


    一.通过rsync搭建备份服务器

    这三个目录我们需要做实时热备,他们分别是  系统的脚本目录  系统的配置文件目录  系统的定时任务目录

    [root@mage-monitor-01 ~]# cat /server/scripts/backuplist 
    /server/scripts
    /etc
    /var/spool/cron

    1.使用ansible 的 file模块 在所有主机上模拟创建 一个写脚本的 目录

    [root@mage-monitor-01 scripts]# for i in `cat backuplist`;do ansible all -m file -a "path=/server/scripts state=directory"; done;

    2.服务端安装部署rsync 

    [root@store-rsync-01 ~]# yum install -y rsync

     设置rsync的开机自启动

    [root@store-rsync-01 ~]# chmod +x /etc/rc.d/rc.local 
    [root@store-rsync-01 ~]# echo  "rsync --daemon" >>/etc/rc.d/rc.local

    配置

    uid = root
    gid = root
    use chroot = no
    max connections = 200
    timeout = 300
    pid file = /var/run/rsyncd.pid
    lock file = /var/run/rsync.lock
    log file = /var/log/rsyncd.log
    ignore errors
    read only = false
    list = false
    hosts allow = 192.168.5.0/24
    auth users = benjamin
    secrets file = /etc/rsync.password
    [backup]
    comment = "backup dir "
    path = /backup
    [nfsbackup]
    comment = "nfsbackup dir"
    path = /nfsbackup
    [scripts]
    comment = "scripts dir"
    path = /server/scripts
    [etc]
    comment = "etc dir"
    path = /etc
    [crontab]
    comment = "crontab dir"
    path = /var/spool/cron

    创建 rsync用户

    [root@store-rsync-01 ~]# useradd -s /sbin/nologin -M rsync

    创建数据备份储存目录,目录修改属主

    [root@backup ~]# mkdir /nfsbackup/
    [root@backup ~]# chown -R rsync.rsync /nfsbackup/

    创建认证用户密码文件并进行授权600

    [root@store-rsync-01 ~]# echo "benjamin:123" >>/etc/rsync.password 
    [root@store-rsync-01 ~]# chmod 600 /etc/rsync.password

    启动rsync服务

    rsync --daemon
    [root@store-rsync-01 ~]# ps -ef |grep rsync
    root       1087      1  0 07:57 ?        00:00:00 rsync --daemon
    root       1091   1049  0 07:57 pts/0    00:00:00 grep --color=auto rsync

    3.客户端测试

    创建安全认证文件,并进行修改权限600

    echo "123" >>/etc/rsync.password
    chmod 600 /etc/rsync.password
    [root@mage-monitor-01 scripts]# rsync -avz `pwd`  benjamin@192.168.5.131::nfsbackup  --password-file=/etc/rsync.password
    sending incremental file list
    rsync: chgrp "scripts" (in nfsbackup) failed: Operation not permitted (1)
    scripts/
    scripts/a.sh
    rsync: chgrp "scripts/.a.sh.SdKZyg" (in nfsbackup) failed: Operation not permitted (1)
    
    sent 122 bytes  received 216 bytes  676.00 bytes/sec
    total size is 0  speedup is 0.00
    rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1178) [sender=3.1.2]

    4.使用ansible  copy模块 将/etc/rsync.password   和  同步脚本发送到所有主机

    备份脚本

    [root@mage-monitor-01 scripts]# cat backup_to_rsync.sh 
    #!/bin/bash
    
    #source function lib
    . /etc/init.d/functions
    
    rsync_host=rsync.woniu.com
    
    #Defined varibles
    IP=$(ifconfig eth1|awk -F '[ :]+' 'NR==2 {print $3}')
    Path="/backup/$IP"
    TIME=`/bin/date +%F`
    BackupFile=/server/scripts/backuplist
    
    # Judge the existence of varibles
    [ ! -d $Path ] && mkdir -p $Path
    
    [ ! -f $BackupFile ] && {
       echo "Please give me $BackupFile"
       exit 1
    }
    
    # Defined result function
    function Msg(){
      if [ $? -eq 0 ];then
            action "$*" /bin/true
      else
            action "$*" /bin/false
      fi
    }
    
    # Backup config files
    tar  zcfh $Path/conf_${TIME}.tar.gz `cat $BackupFile` &>/dev/null
    Msg 'Backup config files'
    
    # Make a flag for backup
    find $Path -type f -name "${TIME}.tar.gz"|xargs md5sum >$Path/flag_$TIME 2>/dev/null
    Msg 'Make a flag for backup'
    
    # Send backup to backup server
    rsync -avz $Path  benjamin@${rsync_host}::backup  --password-file=/etc/rsync.password
    Msg  'Send backup to backup server'
    
    # Delete backup a week ago
    find ${Path-/tmp} -type f -name "*.tar.gz" -mtime +7|xargs rm -f &>/dev/null
    Msg 'Delete backup a week ago'
    [root@mage-monitor-01 ~]# ansible all -m copy -a "src=/server/scripts/backuplist  dest=/server/scripts/"                             
    [root@mage-monitor-01 scripts]# ansible all -m copy -a "src=/etc/rsync.password dest=/etc"
    [root@mage-monitor-01 scripts]# ansible all -m copy -a "src=/server/scripts/backup_to_rsync.sh  dest=/server/scripts/" 

    5.将脚本加入定时任务使用每天凌晨推送 ansible的 shell 模块

    centos7默认 的定时任务文件没有执行权限需要添加一下

    [root@mage-monitor-01 scripts]# ansible all -m shell -a "chmod +x /etc/rc.d/rc.local"  

    定时脚本

    [root@mage-monitor-01 scripts]# cat set_backup_script.sh 
    #!/bin/bash
    function crond_backup(){
            [ `crontab -l|grep "backup data"|wc -l` -eq 0 ]&&{
    
            echo -e "#backup data
     00 00 * * * /bin/sh /server/scripts/backup_to_rsync.sh >/dev/null 2>&1" >> 
    /var/spool/cron/root
    crontab -l 
    sleep 2
    }||{
            echo "backup cron is exist,no config."
    }
    
    }
    crond_backup

    将脚本 发送到所有主机 已存在的不做覆盖

    [root@mage-monitor-01 ~]# ansible all -m copy -a "src=/server/scripts/set_backup_script.sh  dest=/server/scripts/"

    使用ansible的 script模块 执行脚本 removes参数判断脚本不存在就不执行,反之就执行

    [root@mage-monitor-01 ~]# ansible all -m script -a "removes=/server/scripts/set_backup_script.sh /server/scripts/set_backup_script.sh "

    将备份结果发邮件提醒就不弄了,比较简单。

    下一节搞小米监控

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  • 原文地址:https://www.cnblogs.com/benjamin77/p/9265025.html
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