nginx与keepalived+tomcat高可用搭建

安装环境准备

yum -y install pcre-devel opemssl opemssl-devel

• nginx安装

1. 解压 

      tar -zxvf nginx-1.14.0.tar.gz

    2.  安装

       cd nginx-1.14.0

       ./configer

        make && make install

3. 启动与关闭

    cd  安装目录  我的机器  /usr/local/nginx/sbin

     开启：./nginx

     关闭: ./nginx -s stop

nginx 配置

cd /usr/local/nginx/conf/nginx.conf

两台机器配置一样

nginx配置tomcat  采用iphash策略

keepalived配置

• 

  keepalived主结点配置

  

  keepalived从节点配置

  #!/bin/bash
  
  
  #请找准自己的nginx的pid文件
  
  if [ -f /user/local/nginx/logs/nginx.pid ]
  then
      echo -e 'nginx running' #方便调试
  else 
      service keepalived stop
      echo -e 'keealived stoped !!!'
  fi

  可执行权限

• chmod +x nginx_check.sh

  启动keepalived与测试

service keeppalived start

检测

ip addr

如果有配置的虚拟IP出现则暴露成功！可以试着关闭nignx看暴露的虚拟IP是否可能访问，keepallied服务是否能成功关闭！