Haproxy multi instance initscripts, FreeBSD & Debian

haproxy_debian.sh

#!/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 <[email protected]>

PATH=/sbin:/usr/sbin:/bin:/usr/bin
PIDFILE=/var/run/haproxy.pid
CONFIG=/etc/haproxy/haproxy.conf
HAPROXY=/usr/sbin/haproxy
EXTRAOPTS=
ENABLED=0

test -x $HAPROXY || 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

if [ -n "$2"  ]; then
  profile="$2"
  if [ "x${PROFILES}" != "x"  ]; then
    PIDFILE="/var/run/haproxy_${profile}.pid"
    CONFIG="/etc/haproxy/haproxy_${profile}.conf"
    if [ ! -f "$CONFIG" ]; then
      echo "You must define a configuration file (${CONFIG})"
      exit 1
    fi
  else
    echo "$0: extra argument ignored"
  fi
else
  if [ "x${PROFILES}" != "x" -a "x$1" != "x"  ]; then
    for profile in ${PROFILES}; do
      echo "===> haproxy profile: ${profile}"
      /etc/init.d/haproxy $1 ${profile}
    done
    exit 0
  fi
fi

haproxy_start()
{
  start-stop-daemon --start --pidfile "$PIDFILE" \
    --exec $HAPROXY -- -q -f "$CONFIG" -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 -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_checkconfig()
{
  $HAPROXY -q -c -f $CONFIG
  [ $? -eq 0 ] || exit 1
}

case "$1" in
start)
  log_daemon_msg "Starting haproxy" "haproxy"
  haproxy_checkconfig
  haproxy_start
  ret=$?
  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 $ret
  ;;
reload|force-reload)
  log_daemon_msg "Reloading haproxy" "haproxy"
  haproxy_checkconfig
  haproxy_reload
  case "$?" in
  0|1)
    log_end_msg 0
    ;;
  2)
    log_end_msg 1
    ;;
  esac
  ;;
restart)
  log_daemon_msg "Restarting haproxy" "haproxy"
  haproxy_checkconfig
  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
  ;;
*)
  echo "Usage: /etc/init.d/haproxy {start|stop|reload|restart|status}"
  exit 2
  ;;
esac

:

haproxy_freebsd.sh

#!/bin/sh
#
# $FreeBSD: net/haproxy/files/haproxy.in 305869 2012-10-14 11:46:52Z crees $
#

# PROVIDE: haproxy
# REQUIRE: DAEMON LOGIN
# KEYWORD: shutdown

#######
#
# Add the following lines to /etc/rc.conf to enable haproxy:
#
# haproxy_enable (bool):        default: "NO"
#                               Set to "YES" to enable haproxy
# haproxy_profiles (str):               Set to "" by default.
#                               Define your profiles here.
# haproxy_pidfile (str):        default: /var/run/${name}.pid
#                               Set to the full path of the pid file
# haproxy_config (str):         default: /usr/local/etc/${name}.conf
#                               Set to the full path of the config file
# haproxy_flags (str):          default: Autogenerated using pidfile and config options
#                               Set to override with your own options
#
#######
#
# rc.d Script Runtime Options:
#
# start         - starts application normally
# stop          - (softstop) stops all proxies and exits once all sessions are closed 
# forcestop     - (immediate) stops all proxies and kills active sessions
# reload        - hot-reconfig using "-sf" option (active sessions kept)
# forcereload   - hot-reconfig using "-st" option (active sessions killed)
# restart       - equiv to "stop" then "start"
# configtest    - checks configuration file defined in haproxy_config
#
#######

. /etc/rc.subr

name="haproxy"
rcvar=haproxy_enable
command="/usr/local/sbin/haproxy"

_pidprefix="/var/run"

# Load Configs/Set Defaults
load_rc_config $name
: ${haproxy_enable:="NO"}
: ${haproxy_profiles:=""}
pidfile=${haproxy_pidfile:-"/var/run/haproxy.pid"}
: ${haproxy_config:="/usr/local/etc/${name}.conf"}
: ${haproxy_flags="-q -f ${haproxy_config} -p ${pidfile}"}

# Update the globals
required_files=$haproxy_config

# Commands: start, stop, restart, reload, configtest
extra_commands="reload configtest"

configtest_cmd="$command -c -f $haproxy_config"
start_precmd="$command -q -c -f $haproxy_config"
reload_cmd="haproxy_reload"

# For stopping, SIGUSR1 = softstop, SIGTERM = faststop
sig_stop=${rc_force:-USR1}

if [ -n "$2" ]; then
        profile="$2"
        if [ "x${haproxy_profiles}" != "x" ]; then
                pidfile="${_pidprefix}/haproxy_${profile}.pid"
                eval haproxy_config="\${haproxy_${profile}_config:-/usr/local/etc/haproxy_${profile}.conf}"
                if [ "x${haproxy_config}" = "x" ]; then
                        echo "You must define a configuration file (haproxy_${profile}_config)"
                        exit 1
                fi
                required_files="${haproxy_config}"
                eval haproxy_enable="\${haproxy_${profile}_enable:-${haproxy_enable}}"
                eval haproxy_flags="\${haproxy_${profile}_flags:-${haproxy_flags}}"
                haproxy_flags="-q -f ${haproxy_config} -p ${pidfile}"
        else
                echo "$0: extra argument ignored"
        fi
else
        if [ "x${haproxy_profiles}" != "x" -a "x$1" != "x" ]; then
                for profile in ${haproxy_profiles}; do
                        echo "===> haproxy profile: ${profile}"
                        /usr/local/etc/rc.d/haproxy $1 ${profile}
                        retcode="$?"
                        if [ "0${retcode}" -ne 0 ]; then
                                failed="${profile} (${retcode}) ${failed:-}"
                        else
                                success="${profile} ${success:-}"
                        fi
                done
                exit 0
        fi
fi

haproxy_reload()
{
        # Check configuration file quietly first
        ${command} -q -c -f ${haproxy_config}
        if [ $? -ne 0 ]; then
            err 1 "Error found in ${haproxy_config} - not reloading current process!"
        fi
        rc_pid=$(check_pidfile ${pidfile} ${command})
        if [ $rc_pid ]; then
                if [ $rc_force ]; then
                        ${command} ${haproxy_flags} -st ${rc_pid}
                else
                        ${command} ${haproxy_flags} -sf ${rc_pid}
                fi
        else
                _run_rc_notrunning
                return 1
        fi
}

run_rc_command "$1"