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詳解centos7中配置keepalived日志為別的路徑

 更新時(shí)間：2018年10月19日 08:35:30   作者：OracleBlog  
這篇文章主要介紹了centos7中配置keepalived日志為別的路徑,小編覺得挺不錯(cuò)的，現(xiàn)在分享給大家，也給大家做個(gè)參考。一起跟隨小編過來(lái)看看吧

keepalived 安裝：

cd <keepalived_sourcecode_path>
./configure --prefix=/usr/local/keepalived
 
make && make install
 
mkdir /etc/keepalived
mkdir /etc/keepalived/scripts
cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
cp /root/keepalived-2.0.6/keepalived/etc/init.d/keepalived /etc/init.d/
cp /usr/local/keepalived/sbin/keepalived /sbin/keepalived
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
chmod +x /etc/init.d/keepalived

由于在默認(rèn)狀態(tài)下keepalived的日志會(huì)寫入到/var/log/message中，我們需要將此剝離出來(lái)。

在centos 6下可以：

（1）首先修改/etc/sysconfig/keepalived文件，注釋掉如下，添加如下： 

#KEEPALIVED_OPTIONS="-D"
KEEPALIVED_OPTIONS="-D -d -S 0"

（2）其次修改 /etc/rsyslog.conf 文件，添加如下：

local0.* /var/log/keepalived.log

在centos 7 下，還需要修改/lib/systemd/system/keepalived.service 文件：

centos 7使用。因?yàn)閏entos 7使用systemctl，通過systemctl調(diào)用service，所以需要修改/lib/systemd/system/keepalived.service文件。

將里面的：

EnvironmentFile=-/usr/local/keepalived/etc/sysconfig/keepalived
ExecStart=/usr/local/keepalived/sbin/keepalived $KEEPALIVED_OPTIONS

修改成：

EnvironmentFile=/etc/sysconfig/keepalived
ExecStart=/sbin/keepalived $KEEPALIVED_OPTIONS

然后重新加載service：

systemctl daemon-reload

整體的思路就是，

1. 通過systemctl start keepalived去啟動(dòng)；

2. 啟動(dòng)keepalived的時(shí)候，會(huì)去讀service的配置文件：/lib/systemd/system/keepalived.service；

3. 在service的配置文件時(shí)：

3.1 啟動(dòng)文件路徑ExecStart=/sbin/keepalived $KEEPALIVED_OPTIONS，即啟動(dòng)方式是帶環(huán)境變量文件中參數(shù)來(lái)啟動(dòng)；

3.2 讀取環(huán)境變量參數(shù)EnvironmentFile=/etc/sysconfig/keepalived。

4. $KEEPALIVED_OPTIONS參數(shù)是在/etc/sysconfig/keepalived的配置；我們配置的是KEEPALIVED_OPTIONS="-D -d -S 0"；而-S是syslog的facility，0表示放在local0，在/etc/rsyslog.conf 中配置local0.* /var/log/keepalived.log

5. 所以，寫日志就去/var/log/keepalived.log了。

以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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