环境
- 操作系统：CentOS 7
- Keepalived版本：1.4.2
准备
下载Keepalived安装包
– 方式一，将下载好的安装包上传至服务器，点击下载：keepalived-1.4.2.tar.gz
– 方式二，通过wget命令直接在服务器下载
wget https://itze.cn/uploads/keepalived-1.4.2.tar.gz
安装
解压到/usr/local/src（位置自己可以改变）
tar -zxvf keepalived-1.4.2.tar.gz -C /usr/local/src
安装依赖插件
yum install -y gcc openssl-devel popt-devel
进入解压后的目录，进行配置，进行编译
cd /usr/local/src/keepalived-1.4.2
./configure --prefix=/usr/local/keepalived
进行编译，完成后进行安装
make && make install
运行前配置
cp /usr/local/src/keepalived-1.4.2/keepalived/etc/init.d/keepalived /etc/init.d/
mkdir /etc/keepalived
cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
cp /usr/local/src/keepalived-1.4.2/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
cp /usr/local/keepalived/sbin/keepalived /usr/sbin/
配置文件的修改这里不介绍，根据自己业务需要修改，会在本站文章：基于HA机制的Mycat高可用中有介绍
启动验证
systemctl start keepalived
查看状态
systemctl status keepalived