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歡迎跳轉到本文的原文鏈接：https://honeypps.com/backend/modify-keepalived-config-location/

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上一篇博文主要講述了如何使用Keepalived實現tomcat服務器的雙機熱備。這篇博文是對上一篇博文的擴展，主要講述如何修改Keepalived的默認配置文件的路徑以及重定向Keepalived日志的輸出路徑。關于如何安裝keepalived以及keepalived的安裝路徑問題，請參考上一篇博文。

Keepalived默認的配置文件路徑在/etc/keepalived/keepalived.conf

Keepalived默認的日志文件保存在/var/log/messages

有時候由于現實的需要，比如項目的路徑規劃，需要將這些文件路徑修改到合適的位置。

首先看一下/etc/sysconfig/keepalived文件

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# Options for keepalived. See `keepalived --help' output and keepalived(8) and # keepalived.conf(5) man pages for a list of all options. Here are the most # common ones : # # --vrrp -P Only run with VRRP subsystem. # --check -C Only run with Health-checker subsystem. # --dont-release-vrrp -V Dont remove VRRP VIPs & VROUTEs on daemon stop. # --dont-release-ipvs -I Dont remove IPVS topology on daemon stop. # --dump-conf -d Dump the configuration data. # --log-detail -D Detailed log messages. # --log-facility -S 0-7 Set local syslog facility (default=LOG_DAEMON) #KEEPALIVED_OPTIONS="-D"

注意到這段文件中只有一個KEEPALIVED_OPTIONS="-D"，這個就是修改文件路徑的關鍵。

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這里補充下Keeaplived的相關知識

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/usr/local/keepalived/sbin/keepalived --vrrp -P [Only run with VRRP subsystem.] /usr/local/keepalived/sbin/keepalived --check -C [Only run with Health-checker subsystem.] /usr/local/keepalived/sbin/keepalived --dont-release-vrrp -V [Dont remove VRRP VIPs & VROUTEs on daemon stop. ] /usr/local/keepalived/sbin/keepalived --dont-release-ipvs -I [Dont remove IPVS topology on daemon stop. ] /usr/local/keepalived/sbin/keepalived --dont-fork -n [Dont fork the daemon process. ] /usr/local/keepalived/sbin/keepalived --use-file -f [Use the specified configuration file. Default is /etc/keepalived/keepalived.conf. ] /usr/local/keepalived/sbin/keepalived --dump-conf -d [Dump the configuration data. ] /usr/local/keepalived/sbin/keepalived --log-console -l [Log message to local console. ] /usr/local/keepalived/sbin/keepalived --log-detail -D [Detailed log messages. ] /usr/local/keepalived/sbin/keepalived --log-facility -S 0-7 [Set syslog facility to LOG_LOCAL[0-7]. (default=LOG_DAEMON) ] /usr/local/keepalived/sbin/keepalived --help -h [Display this short inlined help screen. ] /usr/local/keepalived/sbin/keepalived --version -v [Display the version number ] /usr/local/keepalived/sbin/keepalived --pid -p [pidfile ] /usr/local/keepalived/sbin/keepalived --checkers_pid -c [checkers pidfile ] /usr/local/keepalived/sbin/keepalived --vrrp_pid -r [vrrp pidfile]

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細心的讀者可能注意到“-D” 就是輸出日志的選項，而-f就是修改默認配置文件路徑的選項。

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在/etc/sysconfig/keepalived中的KEEPALIVED_OPTIONS修改為：

KEEPALIVED_OPTIONS="-f [配置文件路徑] -D"

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這里的[配置文件路徑]]就是你所要修改的keepalived的配置文件的路徑。

同樣注意到要修改日志文件的默認路徑就需要“-S”。這里將KEEPALIVED_OPTIONS再做修改，改為：

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KEEPALIVED_OPTIONS="-f [配置文件路徑] -D -S 0"

這里的“-S 0”表示local0.* 具體的還需要看一下/etc/rsyslog.conf文件：

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# Log all kernel messages to the console. # Logging much else clutters up the screen. #kern.* /dev/console# Log anything (except mail) of level info or higher. # Don't log private authentication messages! *.info;mail.none;authpriv.none;cron.none /var/log/messages# The authpriv file has restricted access. authpriv.* /var/log/secure# Log all the mail messages in one place. mail.* -/var/log/maillog# Log cron stuff cron.* /var/log/cron# Everybody gets emergency messages *.emerg *# Save news errors of level crit and higher in a special file. uucp,news.crit /var/log/spooler# Save boot messages also to boot.log local7.* /var/log/boot.log

看到最后一句：

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local7.* /var/log/boot.log

同樣我們可以在這個文件中添加

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local0.* ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? /var/log/keepalived.log

這樣我們就可以修改日志路徑。

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歡迎跳轉到本文的原文鏈接：https://honeypps.com/backend/modify-keepalived-config-location/

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歡迎支持筆者新作：《深入理解Kafka:核心設計與實踐原理》和《RabbitMQ實戰指南》，同時歡迎關注筆者的微信公眾號：朱小廝的博客。

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