标签：root 日志 Fix 技术分享 监控 etc down mon 取消
环境准备：
10.0.0.7 web01 10.0.0.8 web02 10.0.0.3 haproxy centOS 7
1）安装常用软件
yum install -y gcc glibc gcc-c++ screen
2)下载haproxy软件
http://www.haproxy.org/download/1.7/src/haproxy-1.7.10.tar.gz
由于http://www.haproxy.org在国内被屏蔽，只能通过其他方式获取软件
3）将软件上传到相应目录，进行解压，源码编译安装haproxy
[root@lib01 ~]# cd /usr/local/src [root@lib01 src]# tar zxf haproxy-1.7.10.tar.gz [root@lib01 src]# cd haproxy-1.7.10 [root@lib01 haproxy-1.7.10]# make TARGET=linux3100 PREFIX=/usr/local/haproxy-1.7.10 [root@lib01 haproxy-1.7.10]# make install [root@lib01 haproxy-1.7.10]# cp /usr/local/sbin/haproxy /usr/sbin/
通过 haproxy -v，我们可以看到haproxy的版本号
[root@lib02 ~]# haproxy -v HA-Proxy version 1.7.10-a7dcc3b 2018/01/02 Copyright 2000-2018 Willy Tarreau <willy@haproxy.org>
4）创建haproxy用户及配置文件目录
[root@lib01 haproxy-1.7.10]# useradd -r haproxy [root@lib01 haproxy-1.7.10]# mkdir /etc/haproxy [root@lib01 haproxy-1.7.10]# mkdir /var/lib/haproxy [root@lib01 haproxy-1.7.10]# mkdir /var/run/haproxy
5）编辑启动脚本
[root@lib01 haproxy-1.7.10]# cp examples/haproxy.init /etc/init.d/haproxy [root@lib01 haproxy-1.7.10]# chmod 755 /etc/init.d/haproxy
6）编辑配置文件/etc/haproxy/haproxy.cfg
vim /etc/haproxy/haproxy.cfg
global log 127.0.0.1 local3 info chroot /var/lib/haproxy user haproxy group haproxy daemon defaults log global mode http option httplog option dontlognull timeout connect 5000 timeout client 50000 timeout server 50000 frontend www.desc.com mode http bind *:80 stats uri /haproxy?stats default_backend www.desc.com backend www.desc.com option httpchk GET /index.html balance roundrobin server web01 10.0.0.7:80 check inter 2000 rise 3 fall 3 weight 1 server web02 10.0.0.8:80 check inter 2000 rise 3 fall 3 weight 2
启动服务
[root@lib01 haproxy-1.7.10]# /etc/init.d/haproxy start Starting haproxy (via systemctl): [ OK ]
通过web界面，查看状态信息
http://10.0.0.3/haproxy?stats
7）开启日志
vim /etc/rsyslog.conf
$ModLoad imudp #取消注释
$UDPServerRun 514 #取消注释
local3.* /var/log/haproxy.log #最后一行添加local3的路径
[root@lib01 haproxy-1.7.10]# systemctl restart rsyslog.service
[root@lib01 haproxy-1.7.10]# touch /var/log/haproxy.log
[root@lib01 haproxy-1.7.10]# chown -R haproxy.haproxy /var/log/haproxy.log
[root@lib01 haproxy-1.7.10]# /etc/init.d/haproxy restart
Restarting haproxy (via systemctl): [ OK ]
通过监控日志，可以看到haproxy已经启动成功
[root@lib01 haproxy-1.7.10]# tailf /var/log/haproxy.log Dec 10 09:37:39 localhost haproxy[1660]: Stopping frontend www.desc.com in 0 ms. Dec 10 09:37:39 localhost haproxy[1660]: Stopping backend www.desc.com in 0 ms. Dec 10 09:37:39 localhost haproxy[1660]: Proxy www.desc.com stopped (FE: 0 conns, BE: 0 conns). Dec 10 09:37:39 localhost haproxy[1660]: Proxy www.desc.com stopped (FE: 0 conns, BE: 0 conns). Dec 10 09:37:39 localhost haproxy[1692]: Proxy www.desc.com started. Dec 10 09:37:39 localhost haproxy[1692]: Proxy www.desc.com started.
通过测试，我们可以看到自动切换
到此，web的负载均衡配置完成！
标签：root 日志 Fix 技术分享 监控 etc down mon 取消
原文地址：https://www.cnblogs.com/wzxmt/p/10094558.html
