Haproxy的安装以及启动脚本的调试

1 ）源代码安装haproxy
[root@mysql-slave src]# tar xf haproxy-1.6.4.tar.gz
[root@mysql-slave src]# cd haproxy-1.6.4
[root@mysql-slave haproxy-1.6.4]# make TARGET=linux26 PREFIX=/usr/local/haproxy
[root@mysql-slave haproxy-1.6.4]# echo $?
0
[root@mysql-slave haproxy-1.6.4]# make install PREFIX=/usr/local/haproxy
[root@mysql-slave haproxy-1.6.4]# mkdir /usr/local/haproxy/conf
[root@mysql-slave haproxy-1.6.4]# ls
CHANGELOG CONTRIBUTING ebtree haproxy include MAINTAINERS README src tests VERSION
contrib doc examples haproxy-systemd-wrapper LICENSE Makefile ROADMAP SUBVERS VERDATE
[root@mysql-slave haproxy-1.6.4]# cp examples/option-http_proxy.cfg /usr/local/haproxy/conf/haproxy.cfg

2）haproxy的启动脚本配置
由于我的安装包是下载在/usr/local/src下的，我们查看下解压后的haproxy的文件
[root@mysql-slave examples]# pwd
/usr/local/src/haproxy-1.6.4/examples
[root@mysql-slave examples]# ls
acl-content-sw.cfg check.conf debug2html haproxy.init init.haproxy ssl.cfg
auth.cfg content-sw-sample.cfg debugfind haproxy.spec option-http_proxy.cfg stats_haproxy.sh
check debug2ansi errorfiles haproxy.vim seamless_reload.txt transparent_proxy.cfg
如上，我们可以看到一个名为haproxy.init文件
简单查看下haproxy.init的内容
[root@mysql-slave examples]# cat haproxy.init

#!/bin/sh
#
# chkconfig: - 85 15
# description: HA-Proxy is a TCP/HTTP reverse proxy which is particularly suited \
#              for high availability environments.
# processname: haproxy
# config: /etc/haproxy/haproxy.cfg
# 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 $BASENAME`
fi
BIN=/usr/sbin/$BASENAME
CFG=/etc/$BASENAME/$BASENAME.cfg
[ -f $CFG ] || exit 1
PIDFILE=/var/run/$BASENAME.pid
LOCKFILE=/var/lock/subsys/$BASENAME
RETVAL=0
start() {
quiet_check
if [ $? -ne 0 ]; then
echo "Errors found in configuration file, check it with '$BASENAME check'."
return 1
fi
echo -n "Starting $BASENAME: "
daemon $BIN -D -f $CFG -p $PIDFILE
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && touch $LOCKFILE
return $RETVAL
}
stop() {
echo -n "Shutting down $BASENAME: "
killproc $BASENAME -USR1
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && rm -f $LOCKFILE
[ $RETVAL -eq 0 ] && rm -f $PIDFILE
return $RETVAL
}
restart() {
quiet_check
if [ $? -ne 0 ]; then
echo "Errors found in configuration file, check it with '$BASENAME check'."
return 1
fi
stop
start
}
reload() {
if ! [ -s $PIDFILE ]; then
return 0
fi
quiet_check
if [ $? -ne 0 ]; then
echo "Errors found in configuration file, check it with '$BASENAME check'."
return 1
fi
$BIN -D -f $CFG -p $PIDFILE -sf $(cat $PIDFILE)
}
check() {
$BIN -c -q -V -f $CFG
}
quiet_check() {
$BIN -c -q -f $CFG
}
rhstatus() {
status $BASENAME
}
condrestart() {
[ -e $LOCKFILE ] && restart || :
}
# See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
restart)
restart
;;
reload)
reload
;;
condrestart)
condrestart
;;
status)
rhstatus
;;
check)
check
;;
*)
echo $"Usage: $BASENAME {start|stop|restart|reload|condrestart|status|check}"
exit 1
esac

exit $?

我们发现，稍微调整下，就是一个完整的haproxy的启动脚本，所以偷下懒，直接修改两个位置：
BIN=/usr/local/haproxy/sbin/haproxy
# haproxy命令所在的位置
CFG=/usr/local/haproxy/conf/haproxy.cfg
# haproxy.cfg为haproxy的配置文件
修改完成后，将修改后的haproxy.init拷贝到/etc/init.d/目录下

[root@mysql-slave examples]# cp /usr/local/src/haproxy-1.6.4/examples/haproxy.init /etc/init.d/
[root@mysql-slave examples]# mv /etc/init.d/haproxy.init /etc/init.d/haproxy
[root@mysql-slave examples]# chmod +x /etc/init.d/haproxy
[root@mysql-slave examples]# /etc/init.d/haproxy
Usage: haproxy {start|stop|restart|reload|condrestart|status|check}
简单的测试下：
[root@mysql-slave examples]# /etc/init.d/haproxy status
haproxy (pid  54309) 正在运行...
[root@mysql-slave examples]# /etc/init.d/haproxy stop
Shutting down haproxy:                                     [确定]
[root@mysql-slave examples]# /etc/init.d/haproxy status
haproxy 已停
[root@mysql-slave examples]# /etc/init.d/haproxy start
Starting haproxy:                                          [确定]
[root@mysql-slave examples]# /etc/init.d/haproxy reload
[root@mysql-slave examples]# echo $?
0
[root@mysql-slave examples]# /etc/init.d/haproxy condrestart
Shutting down haproxy:                                     [确定]
Starting haproxy:                                          [确定]
[root@mysql-slave examples]# /etc/init.d/haproxy check
Configuration file is valid
到此，haproxy的安装与脚本的配置就已经完成

附件：http://down.51cto.com/data/2368319