最近为了测试haproxy的负载均衡,打算搭建几台haproxy测试机,但我又懒想直接用脚本搭建起就可以使用,以后要测试的时候,也可以直接就用脚本搞定.下面来看脚本吧.
cat /root/soft_shell/haproxy_install.sh
#!/bin/bash
#install haproxy
#20160224 by rocdk890
#variables
dir=/usr/local
ha_dir=${dir}/haproxy
ha_cfg=${ha_dir}/conf/haproxy.cfg
ha_init=/etc/init.d/haproxy
kernel=`uname -r | grep '2.6'`
pcre=$(rpm -qa | grep 'pcre' | wc -l)
echo "$dir, $ha_dir, $ha_cfg, $kernel, $pcre"
#check
if [ ! "$kernel" -o "$pcre" -lt "2" ];then
echo -e "the script need linux 2.6 kernel and pcre pcre-devel \nyou can usage 'yum install pcre pcre-devel' or 'rpm -ivh pcre-devel-6.6-2.el5_1.7.x86_64.rpm'"
exit 1
fi
#function
install_ha_cfg (){
#configure haproxy.cfg
#default configure file for test,but need your change the frontend server and backend server ip address,
#good luck!
echo '
global
log 127.0.0.1 local0
maxconn 4096 #最大连接数
chroot /usr/local/haproxy #安装目录
uid 99 #用户haproxy
gid 99 #组haproxy
daemon #守护进程运行
nbproc 1 #进程数量
#pidfile /usr/local/haproxy/logs/haproxy.pid #haproxy pid
pidfile /usr/local/haproxy/haproxy.pid #haproxy pid
defaults
log global
mode http #7层 http;4层tcp
option httplog #http 日志格式
option httpclose #主动关闭http通道
option redispatch #serverId对应的服务器挂掉后,强制定向到其他健康的服务器
option dontlognull
maxconn 2000 #最大连接数
contimeout 5000 #连接超时(毫秒)
clitimeout 50000 #客户端超时(毫秒)
srvtimeout 50000 #服务器超时(毫秒)
frontend haproxy_test #定义前端服务器(haproxy)
bind *:80 #监听地址
default_backend server_pool #指定后端服务器群
#errorfile 502 /usr/local/haproxy/html/maintain.html
#errorfile 503 /usr/local/haproxy/html/maintain.html
#errorfile 504 /usr/local/haproxy/html/maintain.html
backend server_pool #定义后端服务器群(web server/apache/nginx/iis..)
mode http
option forwardfor #后端服务器(apache/nginx/iis/*),从Http Header中获得客户端IP
balance roundrobin #负载均衡的方式,轮询方式
#balance leastconn #负载均衡的方式,最小连接
cookie SERVERID #插入serverid到cookie中,serverid后面可以定义
option httpchk HEAD /check.html #用来做健康检查html文档
server server1 10.0.1.252:80 cookie server1 check inter 2000 rise 3 fall 3 weight 3
server server1 10.0.1.253:80 cookie server1 check inter 2000 rise 3 fall 3 weight 3
server server1 10.0.1.254:80 cookie server1 check inter 2000 rise 3 fall 3 weight 3
#server server2 10.0.1.253:80 cookie server2 check inter 2000 rise 3 fall 3 maxconn 120 weight 3
#server server3 10.0.1.254:80 cookie server3 check maxconn 90 rise 2 fall 3 weight 3
#服务器定义:
#cookie server1表示serverid为server1;
#check inter 2000 是检测心跳频率(check 默认 );
#rise 3 表示 3次正确认为服务器可用;
#fall 3 表示 3次失败认为服务器不可用;
#weight 表示权重。
listen admin_stat #status
bind *:8080 #监听端口
mode http #http的7层模式
stats refresh 30s #统计页面自动刷新时间
stats uri /haproxy-stats #统计页面URL
stats realm Haproxy\ Statistics #统计页面密码框上提示文本
stats auth admin:admin #统计页面用户名和密码设置
stats hide-version #隐藏统计页面上HAProxy的版本信息
stats admin if TRUE #手工启用/禁用,后端服务器
' > "$ha_cfg" && sed -i '1 d' "$ha_cfg"
}
install_ha_init.d (){
#configure /etc/init.d/haproxy
if [ ! -e "$ha_init" ];then
wget -c http://download.slogra.com/haproxy/haproxy -O /etc/init.d/haproxy
chmod +x /etc/init.d/haproxy
chkconfig haproxy on
else
echo "File haproxy already there !"
fi
}
#install
if [ ! -e "$ha_dir" ];then
wget -nc http://download.slogra.com/haproxy/haproxy-1.4.26.tar.gz
tar zxf haproxy*.tar.gz
cd haproxy*/
make TARGET=linux26 USE_STATIC_PCRE=1 PREFIX=/usr/local/haproxy && make install PREFIX=/usr/local/haproxy && mkdir /usr/local/haproxy/{html,logs,conf}
cd ../
#
if [ ! -e "$ha_dir" ];then
echo "error! can't install haproxy please check ! Will now out of the script !"
exit 1
else
! grep 'haproxy' /etc/syslog.conf && echo 'local1.* /var/log/haproxy.log' >> /etc/syslog.conf
sed -ir 's/SYSLOGD_OPTIONS="-m 0"/SYSLOGD_OPTIONS="-r -m 0"/g' /etc/sysconfig/syslog && /etc/init.d/syslog restart
install_ha_cfg
install_ha_init.d
rm -rf haproxy*/
fi
else
echo "haproxy is already exists!"
fi
本脚本把启动文件也放进去了的,所以启动的时候可以直接执行service haproxy start,当然最好是先改好了配置文件再启动.好了,配置文件里也有说明方便大家自己修改.