Haproxy 启动脚本

# 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: /usr/local/haproxy/conf/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="/usr/local/haproxy/haproxy.conf"
exec="/usr/local/haproxy/sbin/haproxy"
prog="haproxy"
pidfile="/var/run/haproxy.pid"
[ -e /etc/sysconfig/$prog ] && . /etc/sysconfig/$prog

lockfile=/var/lock/subsys/haproxy

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

start() {
    if [ -e $pidfile ];then
    echo "haproxy already running...."
    exit 1
    fi

    $exec -q -c -f $config
    if [ $? -ne 0 ]; then
        echo "Errors in configuration file, check with $prog check."
        return 1
    fi
    echo -n $"Starting $prog: "
    daemon $exec -q -D -f $config -p $pidfile 2> /dev/null
    retval=$?
    echo
    [ $retval -eq 0 ] && touch $lockfile
    return $retval
}

stop() {
    echo -n $"Stopping $prog: "
   # kill -TTOU $(cat $pidfile)
   # kill -USR1 $(cat $pidfile)
    killproc $prog -USR1 2> /dev/null && killall haproxy 2> /dev/null
    retval=$?
    echo
    [ $retval -eq 0 ] && rm -f $pidfile
    [ $retval -eq 0 ] && rm -f $lockfile
    return $retval
}

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

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