haproxy+keepalived搭建高可用的软负载均衡F5

1、cd /appstar zxvf haproxy-1.4.24.tar.gz -解压haproxytar zxvf keepalived-1.2.12.tar.gz -解压keepalivedcd keepalived-1.2.12/先安装gcc yum install gcc*，openssl*/yum install openssl-develln -s /usr/src/kernels/2.6.9-78.EL-i686/usr/src/linux./configure make & make installcp /usr/local/etc/rc.d/init.d/keepalived

2、/etc/rc.d/init.d/cp /usr/local/etc/sysconfig/keepalived /etc/sysconfig/mkdir /etc/keepalivedcp /usr/local/etc/keepalived/keepalived.conf /etc/keepalived/ cp/usr/local/sbin/keepalived/usr/sbin/-chkconfig keepalived on -配置自动启动service keepalived startrootfzjh01 # vi /etc/keepalived/keepalived.confgloba

3、l_defs router_id haproxy-1vrrp_script check_nginx script /etc/keepalived/check_haproxy.shinterval 2weight 2vrrp_instance VI_1 state MASTERinterface eth0virtual_router_id 51priority 180 #100advert_int 1authentication auth_type PASSauth_pass 1234track_script check_nginxvirtual_ipaddress 08/2

4、4 dev eth0tar xzvf haproxy-1.4.24.tar.gz cd /apps/haproxy-1.4.24make TARGET=linux26 PREFIX=/usr/local/haproxymake install PREFIX=/usr/local/haproxymkdir/usr/local/haproxy/conf -prootfzjh01 # vi /usr/local/haproxy/conf/haproxy.cfggloballog local0# log local1 noticemaxconn 32000# u

5、ser haproxy# group haproxydaemon# nbproc 4defaultslog globalmode http# option httplogoption dontlognullretries 3option redispatchmaxconn 32000contimeout 30000clitimeout 500000srvtimeout 500000#FOR ADMINlisten admin_statbind *:8088stats enable# stats hide-versionstats uri /lb_status# stats realm Hapr

6、oxy statistics# stats auth sxit:sxitstats refresh 20sstats admin if TRUE#FOR HISlisten his_8080 *:8080balance roundrobincookie SERVERID insert nocache indirectoption httpchk HEAD /xtHisService/index.jsp HTTP/1.0option forwardforserver 6-8080 6:8080 cookie his01 check weight 10ser

7、ver 9-8080 9:8080 cookie his02 check weight 10#FOR EMRlisten emr_8081bind *:8081balance roundrobincookie SERVERID insert nocache indirectoption httpchk HEAD / HTTP/1.0option forwardforserver 2-8081 2:8081 cookie emr01 check weight 10server 3-8081 10.

8、172.0.43:8081 cookie emr02 check weight 10#FOR UDPlisten udp_80bind *:80balance roundrobincookie SERVERID insert nocache indirectoption httpchk HEAD / HTTP/1.0option forwardforserver 2-80 2:80 cookie udp01 check weight 10#FOR LISlisten lis_8082bind *:8082balance roundrobincookie

9、SERVERID insert nocache indirectoption httpchk HEAD / HTTP/1.0option forwardforserver 7-8082 7:8082 cookie lis01 check weight 10server 0-8082 0:8082 cookie lis02 check weight 10Haproxy监控脚本#vi /etc/keepalived/check_haproxy.sh#!/bin/bashA=ps -C haproxy -no-heade

10、rs | wc -l if $A -eq 0 ; then /sbin/service haproxy start sleep 3 A=ps -C haproxy -no-headers | wc -l if $A -eq 0 ;then killall keepalived fifi增加执行权限chmod +x/etc/keepalived/check_haproxy.sh#4. Haproxy自动启动脚本rootlb03 keepalived# vi /etc/init.d/haproxy#!/bin/sh#chkconfig: 2345 10 90#description:haproxy

11、if -f /etc/init.d/functions ; then. /etc/init.d/functionselif -f /etc/rc.d/init.d/functions ; then. /etc/rc.d/init.d/functionselseexit 0fi# Source networking configuration. /etc/sysconfig/network# Check that networking is up. $NETWORKING = no & exit 0config=/usr/local/haproxy/conf/haproxy.cfgexec=/u

12、sr/local/haproxy/sbin/haproxyPID=/var/run/haproxy.pid -f $config | exit 1RETVAL=0start() daemon $exec -c -q -f $config if $? -ne 0 ; then echo Errors found in configuration file. return 1 fi echo -n Starting HAproxy: $exec -D -f $config -p $PID RETVAL=$? echo $RETVAL -eq 0 & touch /var/lock/subsys/h

13、aproxy return $RETVALstop() echo -n Shutting down HAproxy: killproc haproxy -USR1RETVAL=$?echo $RETVAL -eq 0 & rm -f /var/lock/subsys/haproxy $RETVAL -eq 0 & rm -f $PIDreturn $RETVALrestart() $exec -c -q -f $config if $? -ne 0 ; then echo Errors found in configuration file, check it with haproxy check. return 1 fistopstartrhstatus() status haproxy# See how we were called.case $1 instart) start ;stop) stop ;restart) restart ;status) rhstat