haproxy负载均衡

web_proxy server 192.168.20.112
web1 server 192.168.20.137

web2 server 192.168.20.140

echo "192.168.20.137 > /usr/local/nginx/html/index.html
echo "192.168.20.140 > /usr/local/nginx/html/index.html

下载安装haproxy

tar -zxvf haproxy-1.4.24.tar.gz

cd haproxy-1.4.24

uname -r #查看下linux内核

make TARGET=linux2632 PREFIX=/usr/local/haproxy

make install PREFIX=/usr/local/haproxy

2.创建chroot所需目录

mkdir /var/haproxy

3.创建haproxy主配置文件

global

log 127.0.0.1 local3

chroot /var/haproxy

pidfile /var/haproxy/haproxy.pid

maxconn 4000

user haproxy

group haproxy

daemon

nbproc 1

stats socket /var/haproxy/stats

defaults

mode http

log global

option httplog

option dontlognull

option http-server-close

option forwardfor

option redispatch

retries 3

timeout http-request 10s

timeout queue 1m

timeout connect 10s

timeout client 1m

timeout server 1m

timeout http-keep-alive 10s

stats uri /admin?stats

#stats hide-version（隐藏版本号）

timeout check 10s

#balance source

maxconn 3000

listen web_proxy 192.168.20.112:8000

server web1 192.168.20.137:8000 cookie app1inst1 check inter 2000 rise 2 fall 5

server web2 192.168.20.140:8000 cookie app1inst2 check inter 2000 rise 2 fall 5

listen admin_status
      bind *:8000
      mode  http
      stats  enable
      stats  uri /admin?status
      stats  auth yzg:yzg1314520
      stats  refresh 5
      stats  hide-version

因为haproxy本来就有主配置文件在/etc/haproxy/haproxy.cfg，所以我们要把自己弄的主配置文件替换掉原本haproxy自己本身的主配置文件，

cp /etc/haproxy/haproxy.cfg /etc/haproxy/haproxy.cfg.bak

cp /etc/haproxy.cfg /etc/haproxy/haproxy.cfg

然后重启haproxy服务

service haproxy restart

4.创建haproxy用户和组

useradd -s /sbin/nologin haproxy

5.修改日志配置文件

vim /etc/rsyslog.conf # 最下面添加这三行

$ModLoad imudp

$UDPServerRun 514

local3.* /var/log/haproxy.log

6.重启rsyslog
service rsyslog restart

7.启动haproxy服务
  haproxy -f /etc/haproxy.cfg
echo”/usr/local/sbin/haproxy -f /etc/haproxy.cfg start  "  >> etc/rc.d/rc.local

8.在浏览器输入http://192.168.20.137 和http://192.168.20.140 来确认网址是否能正确访问

9.浏览器输入web_proxy server端的ip看是否轮询 web1 2.


10.用web_proxy 192.168.20.112:8000/admin?stats 去访问浏览器看是否打开图形界面

wKiom1Wcz42zAKh-AARDfaLBJ1I667.jpg(126.83 KB, 下载次数: 0)

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