Pessoal, nesse post irei demonstrar com instalar o HAProxy – TCP/HTTP Load Balance.
Source Download
[lmascarenhas@myserver ~]# cd /usr/local/myapps/programs<br />
[lmascarenhas@myserver ~]# wget http://haproxy.1wt.eu/download/1.3/src/haproxy-1.3.26.tar.gz
Instalação
[lmascarenhas@myserver ~]# tar -vzxf haproxy-1.3.26.tar.gz<br />
[lmascarenhas@myserver ~]# cd haproxy-1.3.26<br />
[lmascarenhas@myserver ~]# make TARGET=linux26 ARCH=i386<br />
[lmascarenhas@myserver ~]# mkdir -p /usr/local/myapps/haproxy-1.3.26/sbin<br />
[lmascarenhas@myserver ~]# cd /opt/<br />
[lmascarenhas@myserver ~]# ln -s /usr/local/myapps/haproxy-1.3.26 haproxy<br />
[lmascarenhas@myserver ~]# cd /usr/sbin/<br />
[lmascarenhas@myserver ~]# ln -s /opt/haproxy/sbin/haproxy haproxy
Configuração
[lmascarenhas@myserver ~]# vim /etc/haproxy/haproxy.cfg
global<br />
maxconn 20000<br />
uid 0<br />
gid 0<br />
daemon<br />
nopoll<br />
noepoll<br />
pidfile /var/run/haproxy.pid<br />
quiet
defaults
mode http
option httplog
option dontlognull
retries 3
stats enable
redispatch
maxconn 20000
timeout client 300000
timeout connect 10000
timeout server 300000
#LOAD HTTP
listen MyLOAD
mode http
balance roundrobin
log
option httplog
option dontlognull
option httpclose
option forwardfor
option httpchk HEAD /index_myload.html HTTP/1.0
server server01MyLoad
server server01MyLoad
stats uri /_stats
stats realm Statistics\ for\ My\ LOAD\ HTTP
stats auth admin:admin
stats scope .
stats scope MyLOAD
Script de inicialização
[lmascarenhas@myserver ~]# vim /etc/init.d/haproxy<br />
#!/bin/sh<br />
#<br />
# chkconfig: - 85 15<br />
# description: HA-Proxy is a TCP/HTTP reverse proxy which is particularly suited \<br />
# for high availability environments.<br />
# processname: haproxy<br />
# config: /etc/haproxy/haproxy.cfg<br />
# pidfile: /var/run/haproxy.pid
# Script Author: Simon Matter simon.matter@invoca.ch
# Version: 2004060600
# Source function library.
if [ -f /etc/init.d/functions ]; then
. /etc/init.d/functions
elif [ -f /etc/rc.d/init.d/functions ] ; then
. /etc/rc.d/init.d/functions
else
exit 0
fi
# Source networking configuration.
. /etc/sysconfig/network
# Check that networking is up.
[ ${NETWORKING} = “no” ] && exit 0
# This is our service name
BASENAME=`basename $0`
if [ -L $0 ]; then
BASENAME=`find $0 -name $BASENAME -printf %l`
BASENAME=`basename $BASENAME`
fi
| [ -f /etc/$BASENAME/$BASENAME.cfg ] | exit 1 |
RETVAL=0
start() {
/usr/sbin/$BASENAME -c -q -f /etc/$BASENAME/$BASENAME.cfg
if [ $? -ne 0 ]; then
echo “Errors found in configuration file, check it with ‘$BASENAME check’.”
return 1
fi
echo -n “Starting $BASENAME: ”
daemon /usr/sbin/$BASENAME -D -f /etc/$BASENAME/$BASENAME.cfg -p /var/run/$BASENAME.pid
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && touch /var/lock/subsys/$BASENAME
return $RETVAL
}
stop() {
echo -n “Shutting down $BASENAME: ”
killproc $BASENAME -USR1
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$BASENAME
[ $RETVAL -eq 0 ] && rm -f /var/run/$BASENAME.pid
return $RETVAL
}
restart() {
/usr/sbin/$BASENAME -c -q -f /etc/$BASENAME/$BASENAME.cfg
if [ $? -ne 0 ]; then
echo “Errors found in configuration file, check it with ‘$BASENAME check’.”
return 1
fi
stop
start
}
check() {
/usr/sbin/$BASENAME -c -q -V -f /etc/$BASENAME/$BASENAME.cfg
}
rhstatus() {
status $BASENAME
}
condrestart() {
| [ -e /var/lock/subsys/$BASENAME ] && restart | : |
}
# See how we were called.
case “$1″ in
start)
start
;;
stop)
stop
;;
restart)
restart
;;
reload)
restart
;;
condrestart)
condrestart
;;
status)
rhstatus
;;
check)
check
;;
*)
| echo $”Usage: $BASENAME {start | stop | restart | reload | condrestart | status | check}” |
exit 1
esac
exit $?
Alterar permissão
[lmascarenhas@myserver ~]# chmod a+x /etc/init.d/haproxy
Fonte: http://haproxy.1wt.eu