【轉】Haproxy安裝及配置

時間 2019-11-30

標籤 haproxy 安裝配置欄目負載均衡简体版

原文原文鏈接

1.安裝php

# wget http://haproxy.1wt.eu/download/1.3/src/haproxy-1.3.20.tar.gzhtml

# tar zcvf haproxy-1.3.20.tar.gzpython

# cd haproxy-1.3.20linux

# make TARGET=linux26 PREFIX=/usr/local/haproxy #將haproxy安裝到/usr/local/haproxyweb

# make install PREFIX=/usr/local/haproxyredis

2.配置算法

安裝完畢後，進入安裝目錄配置文件，默認狀況下目錄裏是沒有.cfg配置文件的，能夠回到安裝文件目錄下將examples下的haproxy.cfg拷貝到usr/local/haproxy下。vim

# cd /usr/local/haproxy後端

# vi haproxy.cfg瀏覽器

默認文件內容以下：

# this config needs haproxy-1.1.28 or haproxy-1.2.1

global

log 127.0.0.1 local0

log 127.0.0.1 local1 notice

#log loghost local0 info

maxconn 4096

chroot /usr/share/haproxy

uid 99

gid 99

daemon

#debug

#quiet

defaults

log global

mode http

option httplog

option dontlognull

retries 3

redispatch

maxconn 2000

contimeout 5000

clitimeout 50000

srvtimeout 50000

listen appli1-rewrite 0.0.0.0:10001

cookie SERVERID rewrite

balance roundrobin

server app1_1 192.168.34.23:8080 cookie app1inst1 check inter 2000 rise 2 fall 5

server app1_2 192.168.34.32:8080 cookie app1inst2 check inter 2000 rise 2 fall 5

server app1_3 192.168.34.27:8080 cookie app1inst3 check inter 2000 rise 2 fall 5

server app1_4 192.168.34.42:8080 cookie app1inst4 check inter 2000 rise 2 fall 5

listen appli2-insert 0.0.0.0:10002

option httpchk

balance roundrobin

cookie SERVERID insert indirect nocache

server inst1 192.168.114.56:80 cookie server01 check inter 2000 fall 3

server inst2 192.168.114.56:81 cookie server02 check inter 2000 fall 3

capture cookie vgnvisitor= len 32

option httpclose # disable keep-alive

rspidel ^Set-cookie:\ IP= # do not let this cookie tell our internal IP address

listen appli3-relais 0.0.0.0:10003

dispatch 192.168.135.17:80

listen appli4-backup 0.0.0.0:10004

option httpchk /index.html

option persist

balance roundrobin

server inst1 192.168.114.56:80 check inter 2000 fall 3

server inst2 192.168.114.56:81 check inter 2000 fall 3 backup

listen ssl-relay 0.0.0.0:8443

option ssl-hello-chk

balance source

server inst1 192.168.110.56:443 check inter 2000 fall 3

server inst2 192.168.110.57:443 check inter 2000 fall 3

server back1 192.168.120.58:443 backup

listen appli5-backup 0.0.0.0:10005

option httpchk *

balance roundrobin

cookie SERVERID insert indirect nocache

server inst1 192.168.114.56:80 cookie server01 check inter 2000 fall 3

server inst2 192.168.114.56:81 cookie server02 check inter 2000 fall 3

server inst3 192.168.114.57:80 backup check inter 2000 fall 3

capture cookie ASPSESSION len 32

srvtimeout 20000

option httpclose # disable keep-alive

option checkcache # block response if set-cookie & cacheable

rspidel ^Set-cookie:\ IP= # do not let this cookie tell our internal IP address

errorloc 502 http://192.168.114.58/error502.html

errorfile 503 /etc/haproxy/errors/503.http

根據實際需求，更改配置文件，個人配置以下

global #全局設置

log 127.0.0.1 local0 #日誌輸出配置，全部日誌都記錄在本機，經過local0輸出

#log loghost local0 info

maxconn 4096 #最大鏈接數

chroot /usr/local/haproxy

uid 99 #所屬運行的用戶uid

gid 99 #所屬運行的用戶組

daemon #之後臺形式運行haproxy

nbproc 2 #啓動2個haproxy實例

pidfile /usr/local/haproxy/haproxy.pid #將全部進程寫入pid文件

#debug

#quiet

defaults #默認設置

#log global

log 127.0.0.1 local3 #日誌文件的輸出定向

mode http #所處理的類別,默認採用http模式，可配置成tcp做4層消息轉發

option httplog #日誌類別,採用httplog

option dontlognull

option forwardfor #若是後端服務器須要得到客戶端真實ip須要配置的參數，能夠從Http Header中得到客戶端ip

option httpclose #每次請求完畢後主動關閉http通道,haproxy不支持keep-alive,只能模擬這種模式的實現

retries 3 #3次鏈接失敗就認爲服務器不可用，主要經過後面的check檢查

option redispatch #當serverid對應的服務器掛掉後，強制定向到其餘健康服務器

maxconn 2000 #最大鏈接數

stats uri /haproxy-admin #haproxy 監控頁面的訪問地址

contimeout 5000 #鏈接超時時間

clitimeout 50000 #客戶端鏈接超時時間

srvtimeout 50000 #服務器端鏈接超時時間

stats auth Frank:Frank #設置監控頁面的用戶和密碼：Frank

stats hide - version #隱藏統計頁面的HAproxy版本信息

frontend http-in #前臺

bind *:80

mode http

option httplog

log global

default_backend htmpool #靜態服務器池

backend htmpool #後臺

balance leastconn#負載均衡算法

option httpchk HEAD /index.htm HTTP/1.0 #健康檢查

server web1 10.16.0.9:8085 cookie 1 weight 5 check inter 2000 rise 2 fall 3

server web2 10.16.0.10:8085 cookie 2 weight 3 check inter 2000 rise 2 fall 3

#cookie 1表示serverid爲1，check inter 1500 是檢測心跳頻率

#rise 2是2次正確認爲服務器可用，fall 3是3次失敗認爲服務器不可用，weight表明權重

3.加上日誌支持

# vim /etc/syslog.conf

在最下邊增長
local3.* /var/log/haproxy.log
local0.* /var/log/haproxy.log

#vim /etc/sysconfig/syslog

修改： SYSLOGD_OPTIONS="-r -m 0"

重啓日誌服務service syslog restart

4.設置開機啓動

爲了方便系統在開機時加載，還能夠建立啓動腳本：
# vim /etc/rc.d/init.d/haproxy 內容以下：

#! /bin/sh
set -e

PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/haproxy/sbin
PROGDIR=/usr/local/haproxy
PROGNAME=haproxy
DAEMON=$PROGDIR/sbin/$PROGNAME
CONFIG=$PROGDIR/$PROGNAME.conf
PIDFILE=$PROGDIR/$PROGNAME.pid
DESC="HAProxy daemon"
SCRIPTNAME=/etc/init.d/$PROGNAME

# Gracefully exit if the package has been removed.
test -x $DAEMON || exit 0

start()
{
echo -n "Starting $DESC: $PROGNAME"
$DAEMON -f $CONFIG
echo "."
}

stop()
{
echo -n "Stopping $DESC: $PROGNAME"
haproxy_pid=cat $PIDFILE
kill $haproxy_pid
echo "."
}

restart()
{
echo -n "Restarting $DESC: $PROGNAME"
$DAEMON -f $CONFIG -p $PIDFILE -sf $(cat $PIDFILE)
echo "."
}

case "$1" in
start)
start
;;
stop)
stop
;;
restart)
restart
;;
*)
echo "Usage: $SCRIPTNAME {start|stop|restart}" >&2
exit 1
;;
esac