#haproxy1.7编译安装配置
#centos7 x86_64
#高可用、负载均衡 使用#下载
#http://www.haproxy.org/download/1.7/src/haproxy-1.7.8.tar.gz
#cd /data/nfs/download
#yum install gcc gcc-c++ autoconf automake -y#安装haproxy
Hadir=/www/server/haproxy #安装目录
mkdir -p $Hadir
tar -axf haproxy-* && cd ./haproxy-*
make TARGET=linux2628 ARCH=x86_64 PREFIX=$Hadir
make install PREFIX=$Hadir
$Hadir/sbin/haproxy -v#增加用户
useradd -s /sbin/nologin -M haproxy
id haproxy#内核优化
# #NAT转发
# sed -i 's@net.ipv4.ip_forward = 0@net.ipv4.ip_forward = 1@g' /etc/sysctl.conf
# grep ip_forward /etc/sysctl.conf
echo "net.ipv4.ip_nonlocal_bind = 1" >>/etc/sysctl.conf #允许没监听IP时启动
sysctl -p#启动脚本配置
cp ./examples/haproxy.init $Hadir/haproxy
chmod 755 $Hadir/haproxy
sed -i '/^BIN=/cBIN='$Hadir'/sbin/$BASENAME' $Hadir/haproxy
sed -i '/^CFG=/cCFG='$Hadir'/$BASENAME.cfg' $Hadir/haproxy#日志配置
sed -i 's/^#$ModLoad imudp/$ModLoad imudp/g' /etc/rsyslog.conf
sed -i 's/^#$UDPServerRun 514/$UDPServerRun 514/g' /etc/rsyslog.conf
echo 'local0.* /var/log/haproxy.log'>>/etc/rsyslog.conf #添加haproxy日志路径
systemctl restart rsyslog#生成配置文件
echo "

###########全局配置#########globallog 127.0.0.1 local0log 127.0.0.1 local1 noticedaemon#nbproc 1     #进程数量 maxconn 4096  #最大连接数 user haproxy  #运行用户  group haproxy #运行组 chroot /var/lib/haproxypidfile /var/run/haproxy.pid
########默认配置############defaultslog globalmode http            #默认模式{ tcp|http|health }option httplog       #日志类别,采用httplogoption dontlognull   #不记录健康检查日志信息  retries 2            #2次连接失败不可用option forwardfor    #后端服务获得真实ipoption httpclose     #请求完毕后主动关闭http通道option abortonclose  #服务器负载很高，自动结束比较久的链接  maxconn 4096         #最大连接数  timeout connect 5m   #连接超时  timeout client 1m    #客户端超时  timeout server 31m   #服务器超时  timeout check 10s    #心跳检测超时  balance roundrobin   #负载均衡方式，轮询
########统计页面配置########listen stats  bind 0.0.0.0:1080 mode httpoption httploglog 127.0.0.1 local0 err stats refresh 30smaxconn 10               #最大连接数  stats uri /admin         #状态页面 http//ip:1080/admin访问
    stats realm Haproxy\ Statisticsstats auth admin:admin   #用户和密码:adminstats hide-version       #隐藏版本信息  stats admin if TRUE      #设置手工启动/禁用########设置haproxy 错误页面#####  #errorfile 403 /opt/haproxy/errorfiles/403.http  #errorfile 500 /opt/haproxy/errorfiles/500.http  #errorfile 502 /opt/haproxy/errorfiles/502.httperrorloc 503 https://www.baidu.com/#errorfile 504 /opt/errorfiles/504.http  ########frontend前端配置##############  frontend http_mainbind *:80option forwardforacl web hdr(host) -i elven.win  #acl规则，-i忽略大小写，访问*就触发web规则use_backend web1 if webacl web_kvm path_beg -i /kvmuse_backend kvm if web_kvmdefault_backend web1 #不满足则响应的默认页面  ########backend后端配置##############  backend web1 #www1作用域  service haproxy restartcookie   SERVERIDbalance roundrobinoption httpchk HEAD /index.html HTTP/1.0server web1 192.168.20.81:80 weight 1 check inter 2000 rise 2 fall 3  server web2 192.168.18.12:80 weight 1 check inter 2000 rise 2 fall 3  backend kvmserver kvm1 127.0.0.1:8000">$Hadir/haproxy.cfg
chown -R haproxy:haproxy $Hadir/#启动
/www/server/haproxy/haproxy start
netstat -antp|grep haproxy
ps -ef|grep haproxy#添加自启动
ln -sf /www/server/haproxy/haproxy /etc/init.d/haproxy
chkconfig --add haproxy
chkconfig haproxy on
chkconfig --list haproxy
service haproxy restart#查看监控
http://ip:1080/admin
#cat /var/log/haproxy.log##启动报错 第 26 行:[: =: 期待一元表达式，[]里的变量用加上引号“”
#修改为如下：[ "${NETWORKING}" = "no" ] && exit 0