2022Keepalived的安装配置.docx

2022Keepalived的安装配置Keepalived的安装配置Keepalived是Linux下一个轻量级的高可用解决方案，它与HeartBeat、RoseHA实现的功能类似，都可以实现服务或者网络的高可用，但是又有差别。下面我打算了关于Keepalived安装和配置的文章，供应给大家参考!一、Keepalived的安装过程Keepalived的安装特别简洁，下面通过源码编译的方式介绍下Keepalived的安装过程。首先打开Keepalived的官方网址http://www.keepalived.org，从中可以下载到各种版本的Keepalived，这里下载的是keepalived-1.2.12.tar.gz。以操作系统环境Centos6.3为例，Keepalived安装步骤如下：[root@keepalived-masterapp]#tarzxvfkeepalived-1.2.12.tar.gz[root@keepalived-masterapp]#cdkeepalived-1.2.12[root@keepalived-masterkeepalived-1.2.12]#./configure--sysconf=/etc\>--with-kernel-dir=/usr/src/kernels/2.6.32-431.5.1.el6.x86_64[root@keepalived-masterkeepalived-1.2.12]#make[root@keepalived-masterkeepalived-1.2.12]#makeinstall[root@keepalived-masterkeepalived-1.2.12]#ln-s/usr/local/sbin/keepalived/sbin/[root@keepalived-masterkeepalived-1.2.12]#chkconfig--addkeepalived[root@keepalived-masterkeepalived-1.2.12]#chkconfig--level35keepalivedon在编译选项中，;--sysconf;指定了Keepalived配置文件的安装路径，即路径为/etc/Keepalived/Keepalived.conf;;--with-kernel-dir;是个很重要的参数，但这个参数并不是要把Keepalived编译进内核，而是指定运用内核源码中的头文件，即include书目。只有在运用LVS时，才须要用到;--with-kernel-dir;参数，其他时候是不须要的。在Keepalived输出的加载模块信息，其中：?UseIPVSFramework表示运用IPVS框架，也就是负载均衡模块，后面的;Yes;表示启用IPVS功能。一般在搭建高可用负载均衡集群时会启用IPVS功能，假如只是运用Keepalived的高可用功能，则不须要启用IPVS模块，可以在编译Keepalived时通过;--disable-lvs;关闭IPVS功能。?IPVSsyncdaemonsupport表示启用IPVS的同步功能，此模块一般和IPVS模块一起运用，假如须要关闭，可在编译Keepalived时通过;--disable-lvs-syncd;参数实现。?IPVSuselibnl表示运用新版的libnl。libnl是NETLINK的一个实现，假如要运用新版的libnl，须要在系统中安装libnl和libnl-devel软件包。?UseVRRPFramework表示运用VRRP框架，这是实现Keepalived高可用功能必需的模块。?UseVRRPVMAC表示运用基础VMAC接口的xmitVRRP包，这是Keepalived在1.2.10版本及以后新增的一个功能。至此，Keepalived的安装介绍完毕。下面起先进入Keepalived配置的讲解。二、Keepalived的全局配置在上节安装Keepalived的过程中，指定了Keepalived配置文件的路径为/etc/Keepalived/Keepalived.conf，Keepalived的全部配置均在这个配置文件中完成。由于Keepalived.conf文件中可配置的选项比较多，这里依据配置文件所实现的功能，将Keepalived配置分为三类，分别是：全局配置(GlobalConfiguration)、VRRPD配置和LVS配置。下面将主要介绍下Keepalived配置文件中一些常用配置选项的含义和用法。Keepalived的配置文