#!/bin/sh
### BEGIN INIT INFO
# Provides:          quantum-dhcp-agent
# Required-Start:    $network $local_fs $remote_fs $syslog
# Required-Stop:     $remote_fs
# Should-Start:      mysql postgresql rabbitmq-server keystone
# Should-Stop:       mysql postgresql rabbitmq-server keystone
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Quantum DHCP agent
# Description:       Provide DHCP agent for quantum
### END INIT INFO

# Author: Mehdi Abaakouk <sileht@sileht.net>

# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="OpenStack Quantum DHCP agent"
NAME=quantum-dhcp-agent
DAEMON=/usr/bin/quantum-dhcp-agent
DAEMON_ARGS="--config-file=/etc/quantum/quantum.conf --config-file=/etc/quantum/dhcp_agent.ini --log-file=/var/log/quantum/dhcp-agent.log"
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME

# Exit if the package is not installed
[ -x $DAEMON ] || exit 0

. /lib/lsb/init-functions

do_start()
{
	start-stop-daemon --start --quiet --background --chuid quantum:quantum --make-pidfile --pidfile $PIDFILE --startas $DAEMON --test > /dev/null \
		|| return 1
	start-stop-daemon --start --quiet --background --chuid quantum:quantum --make-pidfile --pidfile $PIDFILE --startas $DAEMON -- \
		$DAEMON_ARGS \
		|| return 2
}

do_stop()
{
	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE
	RETVAL="$?"
	rm -f $PIDFILE
	return "$RETVAL"
}

case "$1" in
  start)
        log_daemon_msg "Starting $DESC" "$NAME"
        do_start
        case "$?" in
            0|1) log_end_msg 0 ;;
            2) log_end_msg 1 ;;
        esac
        ;;
  stop)
	log_daemon_msg "Stopping $DESC" "$NAME"
	do_stop
	case "$?" in
		0|1) log_end_msg 0 ;;
		2) log_end_msg 1 ;;
	esac
	;;
  status)
       status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
       ;;
  restart|force-reload)
        log_daemon_msg "Restarting $DESC" "$NAME"
        do_stop
        case "$?" in
            0|1)
                do_start
                case "$?" in
                    0) log_end_msg 0 ;;
                    1) log_end_msg 1 ;; # Old process is still running
                    *) log_end_msg 1 ;; # Failed to start
                esac
                ;;
            *)
            # Failed to stop
                log_end_msg 1
                ;;
        esac
        ;;

  *)
	echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
	exit 3
	;;
esac
