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#!/bin/sh
### BEGIN INIT INFO
# Provides: haproxy
# Required-Start: $local_fs $network $remote_fs
# Required-Stop: $local_fs $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: fast and reliable load balancing reverse proxy
# Description: This file should be used to start and stop haproxy.
### END INIT INFO
# Author: Arnaud Cornet <acornet@debian.org>
PATH=/sbin:/usr/sbin:/bin:/usr/bin
PIDFILE=/var/run/haproxy.pid
CONFIG=/etc/haproxy/haproxy.cfg
HAPROXY=/usr/local/sbin/haproxy
CONFIGTEST_LOG=/var/log/haproxy_configtest.log
EXTRAOPTS=
ENABLED=1
test -x $HAPROXY || exit 0
test -f "$CONFIG" || exit 0
if [ -e /etc/default/haproxy ]; then
. /etc/default/haproxy
fi
test "$ENABLED" != "0" || exit 0
[ -f /etc/default/rcS ] && . /etc/default/rcS
. /lib/lsb/init-functions
haproxy_start()
{
start-stop-daemon --start --pidfile "$PIDFILE" \
--exec $HAPROXY -- -f "$CONFIG" -D -p "$PIDFILE" \
$EXTRAOPTS || return 2
return 0
}
haproxy_stop()
{
if [ ! -f $PIDFILE ] ; then
# This is a success according to LSB
return 0
fi
for pid in $(cat $PIDFILE) ; do
/bin/kill $pid || return 4
done
rm -f $PIDFILE
return 0
}
haproxy_reload()
{
$HAPROXY -f "$CONFIG" -p $PIDFILE -D $EXTRAOPTS -sf $(cat $PIDFILE) \
|| return 2
return 0
}
haproxy_status()
{
if [ ! -f $PIDFILE ] ; then
# program not running
return 3
fi
for pid in $(cat $PIDFILE) ; do
if ! ps --no-headers p "$pid" | grep haproxy > /dev/null ; then
# program running, bogus pidfile
return 1
fi
done
return 0
}
haproxy_configtest()
{
$HAPROXY -f "$CONFIG" -c > "$CONFIGTEST_LOG" 2>&1
ret=$?
if [ $ret -eq 0 ]; then
# Valid config - remove $CONFIGTEST_LOG
rm "$CONFIGTEST_LOG"
fi
return $ret
}
case "$1" in
start)
log_daemon_msg "Starting haproxy" "haproxy"
haproxy_start
ret=$?
case "$ret" in
0)
log_end_msg 0
;;
1)
log_end_msg 1
echo "pid file '$PIDFILE' found, haproxy not started."
;;
2)
log_end_msg 1
;;
esac
exit $ret
;;
stop)
log_daemon_msg "Stopping haproxy" "haproxy"
haproxy_stop
ret=$?
case "$ret" in
0|1)
log_end_msg 0
;;
2)
log_end_msg 1
;;
esac
exit $ret
;;
reload|force-reload)
log_daemon_msg "Reloading haproxy" "haproxy"
haproxy_reload
case "$?" in
0|1)
log_end_msg 0
;;
2)
log_end_msg 1
;;
esac
;;
restart)
log_daemon_msg "Checking haproxy configuration" "haproxy"
haproxy_configtest
ret=$?
case "$ret" in
0)
log_end_msg 0
;;
1)
log_end_msg 1
echo "Restart process aborted."
echo "Check $CONFIGTEST_LOG for details."
# Abort restart
exit $ret
;;
esac
log_daemon_msg "Restarting haproxy" "haproxy"
haproxy_stop
haproxy_start
case "$?" in
0)
log_end_msg 0
;;
1)
log_end_msg 1
;;
2)
log_end_msg 1
;;
esac
;;
status)
haproxy_status
ret=$?
case "$ret" in
0)
echo "haproxy is running."
;;
1)
echo "haproxy dead, but $PIDFILE exists."
;;
*)
echo "haproxy not running."
;;
esac
exit $ret
;;
configtest)
haproxy_configtest
ret=$?
case "$ret" in
0)
echo "haproxy configuration is valid."
;;
1)
echo "haproxy configuration is NOT valid. Check $CONFIGTEST_LOG for details."
;;
esac
exit $ret
;;
*)
echo "Usage: /etc/init.d/haproxy {start|stop|reload|restart|status|configtest}"
exit 2
;;
esac
:
global
daemon
maxconn 256
defaults
mode http
timeout connect 5000ms
timeout client 50000ms
timeout server 50000ms
frontend http-in
bind *:80
default_backend neo4j-slaves
backend neo4j-slaves
option httpchk GET /db/manage/server/ha/slave
server s1 10.0.1.10:7474 maxconn 32 check
server s2 10.0.1.11:7474 maxconn 32 check
server s3 10.0.1.12:7474 maxconn 32 check
listen admin
bind *:8080
stats enable
apt-get build-dep -y haproxy
apt-get install -y libssl-dev
wget http://haproxy.1wt.eu/download/1.5/src/devel/haproxy-1.5-dev21.tar.gz
tar xzvf haproxy-1.5-dev21.tar.gz
cd haproxy-1.5-dev21/
make TARGET="linux26" USE_STATIC_PCRE=1 USE_OPENSSL=1
make install
curl https://gist.github.com/luhn/9038945/raw/haproxy.initd > /etc/init.d/haproxy
chmod +x /etc/init.d/haproxy
mkdir /etc/haproxy
update-rc.d haproxy defaults
adduser --system haproxy
groupadd haproxy
usermod -G haproxy haproxy
curl https://gist.github.com/luhn/9038945/raw/haproxy.sample.cfg > /etc/haproxy/haproxy.cfg
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