基于haproxy-1.5.12版本的http层负载均衡代理转发，附带测试效果

——前期环境部署：
haproxy 192.168.64.129
nginx 192.168.64.129
client 192.168.64.128

(1.在server端口添加4个虚拟机 [haproxy和nginx共用一台服务器，不同端口]

[root@haproxy ~]# tree -n /usr/local/nginx/conf/conf.d/
/usr/local/nginx/conf/conf.d/
├── bbs.example.com.8000.conf
├── bbs.example.com.8001.conf
├── www.example.com.8002.conf
└── www.example.com.8003.conf

0 directories, 4 files
[root@haproxy ~]# tree -n /usr/local/nginx/html/
/usr/local/nginx/html/
├── bbs_8000
│   ├── index.html
│   ├── index.php
│   └── www
│       ├── example.css
│       ├── example.html
│       └── example.js
├── bbs_8001
│   ├── index.html
│   ├── index.php
│   └── www
│       ├── example.css
│       ├── example.html
│       └── example.js
├── www_8002
│   ├── index.html
│   ├── index.php
│   └── www
│       ├── example.css
│       ├── example.html
│       └── example.js
└── www_8003
├── index.html
├── index.php
└── www
├── example.css
├── example.html
└── example.js

8 directories, 20 files

(2.在client添加hosts信息,并访问测试域名

#添加hosts信息
[root@client ~]# tail -n2 /etc/hosts
192.168.64.129  www.example.com
192.168.64.129  bbs.example.com
#访问测试域名
[root@client ~]# curl bbs.example.com:8000
bbs.example.com:8000

[root@client ~]# curl bbs.example.com:8001
bbs.example.com:8001
[root@client ~]# curl www.example.com:8002
www.example.com:8002
[root@client ~]# curl www.example.com:8003
www.example.com:8003

——测试haproxy代理转发
(1.基于虚拟主机的转发 [实现效果:访问www.example.com将会访问192.168.64.129:8002和8003的内容]

frontend http_web
bind 192.168.64.129:80
acl www_example_com hdr_beg(host) -i www.example.com
use_backend www if www_example_com
backend www
balance        roundrobin
option httpchk HEAD /index.html
server example_web01 192.168.64.129:8002 check inter 1500 rise 3 fall 3 weight 3
server example_web01 192.168.64.129:8003 check inter 1500 rise 3 fall 3 weight 3

测试效果如下：



(2.基于域名(301)跳转 [实现效果:访问www.example.com将会访问bbs.example.com的内容]

frontend http_web
bind 192.168.64.129:80
acl www_example_com hdr_beg(host) -i www.example.com
acl bbs_example_com hdr_beg(host) -i bbs.example.com

use_backend bbs if www_example_com

backend bbs
balance        roundrobin
option httpchk HEAD /index.html
server example_web01 192.168.64.129:8000 check inter 1500 rise 3 fall 3 weight 3
server example_web01 192.168.64.129:8001 check inter 1500 rise 3 fall 3 weight 3

测试效果如下：



(3.基于url目录跳转 [实现效果:访问www.example.com/www/examlpe.html将会访问bbs.example.com/www/examlpe.html的内容]

frontend http_web
bind 192.168.64.129:80
acl www_example_com hdr_beg(host) -i www.example.com
acl bbs_example_com hdr_beg(host) -i bbs.example.com
acl www_path  path_beg -i /www

use_backend bbs_pool if bbs or www_path

backend bbs_pool
balance        roundrobin
option httpchk HEAD /index.html
server example_web01 192.168.64.129:8000 check inter 1500 rise 3 fall 3 weight 3
server example_web01 192.168.64.129:8001 check inter 1500 rise 3 fall 3 weight 3

测试效果如下：


(4.基于后缀以css,js结尾的静态文件文件跳转

frontend http_web
bind 192.168.64.129:80
acl www_example_com hdr_beg(host) -i www.example.com
acl bbs_example_com hdr_beg(host) -i bbs.example.com
acl www_static  path_end -i .js .css

use_backend bbs if www_static

backend bbs
balance        roundrobin
option httpchk HEAD /index.html
server example_web01 192.168.64.129:8000 check inter 1500 rise 3 fall 3 weight 3
server example_web01 192.168.64.129:8001 check inter 1500 rise 3 fall 3 weight 3

测试效果如下：



待补充...