#!/bin/sh
#
# /etc/init.d/xendomains
# Start / stop domains automatically when domain 0 boots / shuts down.
#
# chkconfig: 345 99 00
# description: Start / stop Xen domains.
#
# This script offers fairly basic functionality.  It should work on Redhat
# but also on LSB-compliant SuSE releases and on Debian with the LSB package
# installed.  (LSB is the Linux Standard Base)
#
# Based on the example in the "Designing High Quality Integrated Linux
# Applications HOWTO" by Avi Alkalay
# <http://www.tldp.org/HOWTO/HighQuality-Apps-HOWTO/>
#
### BEGIN INIT INFO
# Provides:          xendomains
# Required-Start:    $syslog $remote_fs xend
# Should-Start:
# Required-Stop:     $syslog $remote_fs xend
# Should-Stop:
# Default-Start:     3 4 5
# Default-Stop:      0 1 2 6
# Short-Description: Start/stop secondary xen domains
# Description:       Start / stop domains automatically when domain 0
#                    boots / shuts down.
### END INIT INFO

if ! [ -e /proc/xen/privcmd ]; then
	exit 0
fi

RETVAL=0

INITD=/etc/init.d

AUTODIR=/etc/xen/auto
LOCKFILE=/var/lock/subsys/xendomains

if [ -e /lib/lsb ]; then
    # assume an LSB-compliant distro (Debian with LSB package,
    # recent-enough SuSE, others...)

    . /lib/lsb/init-functions # source LSB standard functions

    on_fn_exit()
    {
	if [ $RETVAL -eq 0 ]; then
	    log_success_msg
	else
	    log_failure_msg
	fi
    }
elif [ -r $INITD/functions ]; then
    # assume a Redhat-like distro
    . $INITD/functions # source Redhat functions

    on_fn_exit()
    {
	if [ $RETVAL -eq 0 ]; then
	    success
	else
	    failure
	fi

	echo
    }
else
    # none of the above
    LOCKFILE=/var/lock/xendomains

    on_fn_exit()
    {
	echo
    }
fi



start() {
    if [ -f $LOCKFILE ]; then return; fi

    echo -n $"Starting auto Xen domains:"

    # We expect config scripts for auto starting domains to be in
    # AUTODIR - they could just be symlinks to files elsewhere
    if [ -d $AUTODIR ] && [ $(ls $AUTODIR | wc -l) -gt 0 ]; then
	touch $LOCKFILE

       # Create all domains with config files in AUTODIR.
	for dom in  $AUTODIR/*; do
	    xm create --quiet --defconfig $dom
	    if [ $? -ne 0 ]; then
		RETVAL=$?
	    fi
	done

    fi

    on_fn_exit
}

stop()
{
    # NB. this shuts down ALL Xen domains (politely), not just the ones in
    # AUTODIR/*
    # This is because it's easier to do ;-) but arguably if this script is run
    # on system shutdown then it's also the right thing to do.

    echo -n $"Shutting down all Xen domains:"

    xm shutdown --all --wait --halt

    RETVAL=$?

    [ $RETVAL -eq 0 ] && rm -f $LOCKFILE

    on_fn_exit
}

# This does NOT necessarily restart all running domains: instead it
# stops all running domains and then boots all the domains specified in
# AUTODIR.  If other domains have been started manually then they will
# not get restarted.
# Commented out to avoid confusion!
#
#restart()
#{
#    stop
#    start
#}

# same as restart for now - commented out to avoid confusion
#reload()
#{
#    restart
#}


case "$1" in
    start)
	start
	;;

    stop)
	stop
	;;

# The following are commented out to disable them by default to avoid confusion
# - see the notes above
#
#    restart)
#	restart
#	;;
#
#    reload)
#	reload
#	;;

    status)
	xm list
	;;

    *)
	echo $"Usage: $0 {start|stop|status}"
	;;
esac

exit $RETVAL