haproxy服务器

haproxy服务器1：192.168.79.150

haproxy服务器2：192.168.79.160

WEB1（http服务器）：192.168.79.20

WEB2（http服务器）：192.168.79.21

keepalived服务器：192.168.79.150

VIP 192.168.79.10

httpd WEB1，2服务器

yum -y install httpd
systemctl start httpd
cd  /var/www/html
vim index.html
WEB1:a
WEB2:b

haproxy1服务器：

yum -y install haproxy

[root@localhost haproxy]# haproxy -v
HA-Proxy version 1.5.18 2016/05/10
Copyright 2000-2016 Willy Tarreau <willy@haproxy.org>

vim /etc/haproxy/haproxy.cfg
frontend  main *:80
 64     acl url_static       path_beg       -i /static /images /javascript /
    stylesheets 65     acl url_static       path_end       -i .jpg .gif .png .css .js
 66 
 67    # use_backend static          if url_static
 68   ！   use_backend static
 69    # default_backend             app

74 backend static   #通过backend关键字定义一个名为static的后端真是服务器池 使用静态，动态分离如果url——path匹配.jpg gif png css js 静态文件 则访问此后端 定义了一个名为 app的后端真实服务器池 用来指定默认的后端真实服务器池
 75     balance   #：算法  roundrobin #简单轮询调度 
 76  ！   server      static 192.168.79.20:80 check inter 2000 fall 3
 77  ！   server      static 192.168.79.21:80 check inter 2000 fall 3
 78 
 79 #---------------------------------------------------------------------
 80 # round robin balancing between the various backends
 81 #---------------------------------------------------------------------
 82 backend app
 83     balance     roundrobin
 84     server  app1 127.0.0.1:5001 check
 85     server  app2 127.0.0.1:5002 check
 
 

在最后添加

listen stats
       bind 0.0.0.0:8080
       stats refresh 30s
       stats uri /stats
       stats realm Haproxy Manager
       stats auth admin:admin
       stats hide-version
       stats admin if TRUE

重启

在192.168.79.150 haproxy调度器服务器上安装热备份工具

yum -y install keepalived

[root@localhost haproxy]# cd /etc/keepalived/
[root@localhost keepalived]# ls
keepalived.conf
vim keepalived.conf

global_defs{
        router_id HA_TEST_R1
   }
vrrp_script check_haproxy {
        script "/etc/haproxy/check.sh"
        interval 2
}
vrrp_instance VI_1 {
    state MASTER
    interface ens33
    virtual_router_id 1
    priority 120
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.79.111
    }   
        track_script {
             check_haproxy
}            
}

[root@localhost keepalived]# cd /etc/haproxy/
[root@localhost haproxy]# ls
check.sh  haproxy.cfg

[root@localhost haproxy]# vim check.sh
#!/bin/bash

A=`ps -C haproxy --no-header |wc -l`
if [ $A -eq 0 ];
then
   systemctl start haproxy
   if [ `ps -C haproxy --no-header |wc -l` -eq 0];
   then
         systemctl stop keepalived
         sleep 3600
   fi
fi

systemctl restart keepalived
systemctl restart haproxy

ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state 
UP group default qlen 1000    link/ether 00:0c:29:96:34:2c brd ff:ff:ff:ff:ff:ff
    inet 192.168.79.150/24 brd 192.168.79.255 scope global noprefixroute ens
33       valid_lft forever preferred_lft forever
    inet 192.168.79.111/32 scope global ens33

调度器HAPROXY2服务器：

yum -y install keepalived
yum -y install haproxy

在调度机1上 SCP root@192.168.79.160:/etc/haproxy/haproxy.cfg
          SCP root@192.168.79.160:/etc/keepalived/keepalived.conf
          修改
          global_defs {
        router_id HA_TEST_R2
   }
vrrp_instance VI_1 {
    state BACKUP
    interface ens33
    virtual_router_id 1
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.79.111
    }
}

systemctl start keepalived
systemctl start haproxy

init 0 进入调度机2 测试 飘逸ip

进入79.160
ip a
inet 192.168.79.160/24 brd 192.168.79.255 scope global noprefixroute ens
33       valid_lft forever preferred_lft forever
    inet 192.168.79.111/32 scope global ens33
    
    成功

脚本


150 调度机1
[root@localhost haproxy]# systemctl stop haproxy
[root@localhost haproxy]# ps -C haproxy
   PID TTY          TIME CMD
  3609 ?        00:00:00 haproxy
  3610 ?        00:00:00 haproxy
  
  
  vim haproxy.cfg
  26     log         127.0.0.1 local2 info   #添加 info
  
  vim /etc/rsyslog.conf
15 $ModLoad imudp
 16 $UDPServerRun 514

73 local7.*                                                /var/log/boot.lo
    g 74 local2.*        /var/log/haproxy.log
    
    [root@localhost log]# ls   #网页刷一下
anaconda  dmesg               lastlog   spooler                 wtmp
audit     dmesg.old           maillog   tallylog                yum.log
boot.log  firewalld           messages  tuned
btmp      grubby_prune_debug  rhsm      vmware-vgauthsvc.log.0
cron      haproxy.log

   wtmp

audit dmesg.old maillog tallylog yum.log
boot.log firewalld messages tuned
btmp grubby_prune_debug rhsm vmware-vgauthsvc.log.0
cron haproxy.log