#!/bin/sh
#
# keepalived   LVS cluster monitor daemon.
#
#              Written by Andres Salomon <dilinger@voxel.net>
#
### BEGIN INIT INFO
# Provides:          keepalived
# Required-Start:    $syslog $network $remote_fs
# Required-Stop:     $syslog $network $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Starts keepalived
# Description:       Starts keepalived lvs loadbalancer
### END INIT INFO
PATH=/sbin:/bin:/usr/sbin:/usr/bin
DAEMON="ip netns exec {{ amphora_nsname }} {{ keepalived_cmd }}"
NAME=octavia-keepalived
DESC=octavia-keepalived
TMPFILES="/tmp/.vrrp /tmp/.healthcheckers"
{% if vrrp_pid and check_pid %}
DAEMON_ARGS="--log-facility={{ administrative_log_facility }} -f {{ keepalived_cfg }} -p {{ keepalived_pid }} -r {{ vrrp_pid }} -c {{ check_pid }}"
{% else %}
DAEMON_ARGS="-log-facility={{ administrative_log_facility }} -f {{ keepalived_cfg }} -p {{ keepalived_pid }}"
{% endif %}

#includes lsb functions
. /lib/lsb/init-functions

test -f $DAEMON || exit 0


# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

case "$1" in
  start)
       	log_daemon_msg "Starting $DESC" "$NAME"
	for file in $TMPFILES
	do
       		test -e $file && test ! -L $file && rm $file
	done
	if start-stop-daemon --start --quiet --pidfile {{ keepalived_pid }} \
               --exec $DAEMON -- $DAEMON_ARGS; then
		log_end_msg 0
	else
		log_end_msg 1
	fi
       ;;
  stop)
	log_daemon_msg "Stopping $DESC" "$NAME"
	if start-stop-daemon --oknodo --stop --quiet --pidfile {{ keepalived_pid }} \
        	--exec $DAEMON; then
		log_end_msg 0
	else
		log_end_msg 1
	fi
       ;;
  reload|force-reload)
	log_action_begin_msg "Reloading $DESC configuration..."
      	if start-stop-daemon --stop --quiet --signal 1 --pidfile \
               {{ keepalived_pid }} --exec $DAEMON; then
	       log_end_msg 0
	else
		log_action_end_msg 1
	fi
       ;;
  restart)
  	log_action_begin_msg "Restarting $DESC" "$NAME"

       	start-stop-daemon --stop --quiet --pidfile \
		{{ keepalived_pid }} --exec $DAEMON || true
       sleep 1
       if start-stop-daemon --start --quiet --pidfile \
               {{ keepalived_pid }} --exec $DAEMON -- $DAEMON_ARGS; then
	       log_end_msg 0
	else
		log_end_msg 1
	fi
       ;;
  *)
       echo "Usage: /etc/init.d/$NAME {start|stop|restart|reload|force-reload}" >&2
       exit 1
       ;;
esac

exit 0
