centos 7中配置keepalived日志为别的路径

keepalived 安装:

由于在默认状态下keepalived的日志会写入到/var/log/message中,我们需要将此剥离出来。

在centos 6下可以:

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

整体的思路就是,

1. 通过systemctl start keepalived去启动;
2. 启动keepalived的时候,会去读service的配置文件:/lib/systemd/system/keepalived.service;
3. 在service的配置文件时:
3.1 启动文件路径ExecStart=/sbin/keepalived $KEEPALIVED_OPTIONS,即启动方式是带环境变量文件中参数来启动;
3.2 读取环境变量参数EnvironmentFile=/etc/sysconfig/keepalived。
4. $KEEPALIVED_OPTIONS参数是在/etc/sysconfig/keepalived的配置;我们配置的是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,写日志就去/var/log/keepalived.log了。

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