Centos7编译安装haproxy-1.6.5步骤介绍

下载安装包

yum install gcc vim wget
wget http://www.haproxy.org/download/1.6/src/haproxy-1.6.5.tar.gz

解压编译

tar xf haproxy-1.6.5.tar.gz
cd haproxy-1.6.5
make TARGET=linux31 PREFIX=/usr/local/haproxy
make install PREFIX=/usr/local/haproxy
mkdir /etc/haproxy
groupadd  -r  -g  149  haproxy
useradd -g haproxy -r -s /sbin/nologin -u 149 haproxy

创建配置文件

haproxy configure file

#---------------------------------------------------------------------
# Global settings
#---------------------------------------------------------------------
global
    log    127.0.0.1 local2  ###[err warning info debug]
    chroot  /usr/local/haproxy
    pidfile  /var/run/haproxy.pid ###haproxy的pid存放路径,启动进程的用户必须有权限访问此文件
    maxconn  4000         ###最大连接数，默认4000
    user   haproxy
    group   haproxy
    daemon  ###创建1个进程进入deamon模式运行。此参数要求将运行模式设置为"daemon"

#---------------------------------------------------------------------
# common defaults that all the 'listen' and 'backend' sections will
# use if not designated in their block
#---------------------------------------------------------------------
defaults
    mode   http   ###默认的模式mode { tcp|http|health }，tcp是4层，http是7层，health只会返回OK
    log    global     ###采用全局定义的日志
    option  dontlognull   ###不记录健康检查的日志信息
    option  httpclose    ###每次请求完毕后主动关闭http通道
    option  httplog     ###日志类别http日志格式
    option  forwardfor   ###如果后端服务器需要获得客户端真实ip需要配置的参数，可以从Http Header中获得客户端ip 
    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
    timeout connect 10000  #default 10 second timeout if a backend is not found
    timeout client 300000  ###客户端连接超时
    timeout server 300000  ###服务器连接超时
    maxconn     60000  ###最大连接数
    retries     3    ###3次连接失败就认为服务不可用，也可以通过后面设置
####################################################################
listen stats
        bind 0.0.0.0:1080 #监听端口 
        stats refresh 30s #统计页面自动刷新时间 
        stats uri /stats #统计页面url 
        stats realm Haproxy Manager #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
#---------------------------------------------------------------------
# main frontend which proxys to the backends
#---------------------------------------------------------------------
#frontend main *:5000
#    acl url_static path_beg    -i /static /images /javascript /stylesheets
#    acl url_static path_end    -i .jpg .gif .png .css .js
#
#    use_backend static if url_static ###满足策略要求，则响应策略定义的backend页面
#    default_backend   app       ###不满足则响应backend的默认页面

#---------------------------------------------------------------------
# static backend for serving up images, stylesheets and such
#---------------------------------------------------------------------
#backend static
#    balance     roundrobin           ###负载均衡模式轮询
#   server      static 127.0.0.1:4331 check ###后端服务器定义

#---------------------------------------------------------------------
# round robin balancing between the various backends
#---------------------------------------------------------------------
start test

/usr/local/haproxy/sbin/haproxy -f /etc/haproxy/haproxy.cfg
service start scripts创建启动脚本

#!/bin/bash
#
# haproxy
#
# chkconfig: 35 85 15
# description: HAProxy is a free, very fast and reliable solution
# offering high availability, load balancing, and
# proxying for TCP and HTTP-based applications
# processname: haproxy
# config: /etc/haproxy/haproxy.cfg
# pidfile: /var/run/haproxy.pid

# Source function library.
. /etc/rc.d/init.d/functions

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0

config="/etc/haproxy/haproxy.cfg"
exec="/usr/local/haproxy/sbin/haproxy"
prog=$(basename $exec)

[ -e /etc/sysconfig/$prog ] && . /etc/sysconfig/$prog

lockfile=/var/lock/subsys/haproxy

check() {
    $exec -c -V -f $config
}

start() {
    $exec -c -q -f $config
    if [ $? -ne 0 ]; then
        echo "Errors in configuration file, check with $prog check."
        return 1
    fi

    echo -n $"Starting $prog: "
    # start it up here, usually something like "daemon $exec"
    daemon $exec -D -f $config -p /var/run/$prog.pid
    retval=$?
    echo
    [ $retval -eq 0 ] && touch $lockfile
    return $retval
}

stop() {
    echo -n $"Stopping $prog: "
    # stop it here, often "killproc $prog"
    killproc $prog
    retval=$?
    echo
    [ $retval -eq 0 ] && rm -f $lockfile
    return $retval
}

restart() {
    $exec -c -q -f $config
    if [ $? -ne 0 ]; then
        echo "Errors in configuration file, check with $prog check."
        return 1
    fi
    stop
    start
}

reload() {
    $exec -c -q -f $config
    if [ $? -ne 0 ]; then
        echo "Errors in configuration file, check with $prog check."
        return 1
    fi
    echo -n $"Reloading $prog: "
    $exec -D -f $config -p /var/run/$prog.pid -sf $(cat /var/run/$prog.pid)
    retval=$?
    echo
    return $retval
}

force_reload() {
    restart
}

fdr_status() {
    status $prog
}

case "$1" in
    start|stop|restart|reload)
        $1
        ;;
    force-reload)
        force_reload
        ;;
    checkconfig)
        check
        ;;
    status)
        fdr_status
        ;;
    condrestart|try-restart)
      [ ! -f $lockfile ] || restart
    ;;
    *)
        echo $"Usage: $0 {start|stop|status|checkconfig|restart|try-restart|reload|force-reload}"
        exit 2
esac