haproxy2.6.2编译安装

操作系统: redhat7.9

安装依赖包

yum -y install make gcc pcre-devel bzip2-devel openssl-devel systemd-devel

配置内核转发

[root@haproxy ~]# echo 'net.ipv4.ip_nonlocal_bind = 1' >> /etc/sysctl.conf

[root@haproxy ~]# echo 'net.ipv4.ip_forward = 1' >> /etc/sysctl.conf

[root@haproxy ~]# sysctl -p

net.ipv4.ip_nonlocal_bind = 1

net.ipv4.ip_forward = 1

lua环境安装

下载->解压->编译三步曲:

wget http://www.lua.org/ftp/lua-5.3.4.tar.gz

tar -xzf lua-5.3.4.tar.gz

cd lua-5.3.4

make linux test

替换原来的lua

[root@server lua-5.3.4]# lua -v

Lua 5.1.4  Copyright (C) 1994-2008 Lua.org, PUC-Rio

[root@server lua-5.3.4]# rm -rf /usr/bin/lua

[root@server lua-5.3.4]# ln -s /home/hadoop/software/lua-5.3.4/src/lua /usr/bin/lua

[root@server lua-5.3.4]# lua -v

Lua 5.3.4  Copyright (C) 1994-2017 Lua.org, PUC-Rio

更改主服务器名称(按需)

hostnamectl set-hostname ma

创建用户

useradd -r -M -s /sbin/nologin haproxy

进入到源码目录

make clean

make ARCH=x86_64 TARGET=linux-glibc USE_PCRE=1 USE_OPENSSL=1 USE_ZLIB=1 USE_SYSTEMD=1 USE_LUA=1 LUA_INC=/usr/local/lua-5.4.4/src/ LUA_LIB=/usr/local/lua-5.4.4/src/

make install PREFIX=/usr/local/haproxy

 

创建软链接

ln -sv /usr/local/haproxy/sbin/haproxy /usr/sbin/haproxy

创建启动脚本

vi /usr/lib/systemd/system/haproxy.service

[Unit]
Description=HAProxy Load Balancer
After=syslog.target network.target

[Service]
ExecStartPre=/usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg   -c -q
ExecStart=/usr/sbin/haproxy -Ws -f /etc/haproxy/haproxy.cfg  -p /var/run/haproxy.pid
ExecReload=/bin/kill -USR2

[Install]
WantedBy=multi-user.target

重载服务

systemctl daemon-reload

新建配置文件目录

mkdir -p /etc/haproxy

创建配置文件

vim /etc/haproxy/haproxy.cfg

global
    maxconn 8192
    log  127.0.0.1  local0 info
    #log  127.0.0.1
    #log  loghost  local0  info 
    uid  988 
    gid  982 
    daemon
    nbthread  8
    #debug
    #quiet
    ulimit-n  65535
    chroot  /usr/local/haproxy
    stats  socket  /usr/local/haproxy/haproxy.sock

defaults
    log global
    mode    http
    #mode   tcp
    option  httplog
    option  httpclose
    option  dontlognull
    option  forwardfor
    option  redispatch
    option  forwardfor
    option  redispatch
    option  abortonclose
    retries 3
    maxconn 20480
    balance roundrobin
    #balance    source
    #balance    leastconn
    timeout connect 30s
    timeout client 30s
    timeout server 30s
    timeout check 30s

#--------------web配置-----------------
   listen admin_stats 
   bind 0.0.0.0:8000
    stats enable
    mode http
    log global
    stats uri /haproxy_stats
    stats realm Haproxy\ Statistics
    stats auth admin:admin
    #stats hide-version
    stats admin if TRUE
    stats refresh 30s

frontend web1
        bind :8080
        log global
        mode http
        use_backend webserver1

backend webserver1
    mode http
    #option httpchk GET /gioi
    cookie SERVERID insert indirect nocache
server  141-7007 172.18.189.16:7007 cookie s1 check inter 5000   #后端的主机 IP &权衡
server  141-7009 172.18.189.16:7009 cookie s2 check inter 5000   #后端的主机 IP &权衡

 

 

日志文件配置

vim /etc/rsyslog.conf

#去掉以下两列注释：

$ModLoad imudp

UDPServerRun 514

在添加如下内容：

#Save haproxy messages also to haproxy.log

local0.* /var/log/haproxy.log

 

重起日志服务

systemctl restart rsyslog.service

启动haproxy服务

systemctl start haproxy.service