~ubuntu-virt/ubuntu/maverick/eucalyptus/2.0

#!/bin/bash

#Copyright (c) 2009  Eucalyptus Systems, Inc.	

#

#This program is free software: you can redistribute it and/or modify

#it under the terms of the GNU General Public License as published by 

#the Free Software Foundation, only version 3 of the License.  

# 

#This file is distributed in the hope that it will be useful, but WITHOUT

#ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

#FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

#for more details.  

#

#You should have received a copy of the GNU General Public License along

#with this program.  If not, see <http://www.gnu.org/licenses/>.

# 

#Please contact Eucalyptus Systems, Inc., 130 Castilian

#Dr., Goleta, CA 93101 USA or visit <http://www.eucalyptus.com/licenses/> 

#if you need additional information or have any questions.

#

#This file may incorporate work covered under the following copyright and

#permission notice:

#

#  Software License Agreement (BSD License)

#

#  Copyright (c) 2008, Regents of the University of California

#  

#

#  Redistribution and use of this software in source and binary forms, with

#  or without modification, are permitted provided that the following

#  conditions are met:

#

#    Redistributions of source code must retain the above copyright notice,

#    this list of conditions and the following disclaimer.

#

#    Redistributions in binary form must reproduce the above copyright

#    notice, this list of conditions and the following disclaimer in the

#    documentation and/or other materials provided with the distribution.

#

#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

#  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED

#  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

#  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER

#  OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

#  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

#  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

#  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

#  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

#  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. USERS OF

#  THIS SOFTWARE ACKNOWLEDGE THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE

#  LICENSED MATERIAL, COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS

#  SOFTWARE, AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING

#  IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA, SANTA

#  BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY, WHICH IN

#  THE REGENTS’ DISCRETION MAY INCLUDE, WITHOUT LIMITATION, REPLACEMENT

#  OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO IDENTIFIED, OR

#  WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT NEEDED TO COMPLY WITH

#  ANY SUCH LICENSES OR RIGHTS.

#

#

# chkconfig: 2345 99 05

# description: script for starting and stopping eucalyptus java ws services

#

### BEGIN INIT INFO

# Provides:                   eucalyptus

# Required-Start:             $remote_fs $syslog 

# Should-Start:               START

# Required-Stop:              $remote_fs $syslog 

# Default-Start:              2 3 4 5

# Default-Stop:	              0 1 6

# Short-Description:          Start Eucalyptus 

# Description:                Start the Eucalyptus services

# X-UnitedLinux-Default-Enabled: yes

### END INIT INFO

#

# Do NOT "set -e"

# we need to source the current path in case of manual intallation

export PATH=/sbin:/usr/sbin:/bin:/usr/bin:$PATH

DESC="Eucalyptus services"

NAME=""

ANT="`which ant 2> /dev/null`"

JAVA="`which java 2> /dev/null`"

EUCA_USER="eucalyptus"

# available services

WALRUS_WS="N"

CLOUD_WS="N"

STORAGE_WS="N"

if [ "$EUID" != "0" ]; then

	echo "Eucalyptus init scripts must be run as root."

	exit 1

fi

# if we have lsb functions let's source them

WE_HAVE_LSB="N"

if [ -e /lib/lsb/init-functions ]; then

	. /lib/lsb/init-functions

	# very old lsb don't have the functions we need

	if type log_daemon_msg > /dev/null 2> /dev/null ; then

		WE_HAVE_LSB="Y"

	fi

fi

# honor the ENV variable if found otherwise look in root

if [ -z "$EUCALYPTUS" ] ; then

       EUCALYPTUS="@prefix@"

       if [ ! -e ${EUCALYPTUS}/etc/eucalyptus/eucalyptus.conf ] ; then 

              EUCALYPTUS="/"

       fi

fi

# Read configuration variable file if it is present

if [ -r $EUCALYPTUS/etc/eucalyptus/eucalyptus.conf ]; then

	EUCA_TMP="`readlink -f ${EUCALYPTUS}`"

	. $EUCALYPTUS/etc/eucalyptus/eucalyptus.conf

	# has eucalyptus been configured?

	if [ "$EUCALYPTUS" = "not_configured" ]; then

		echo "EUCALYPTUS not configured!" 

		exit 1

	fi

	# there may be inconsistencied between conf file and env variable

	if [ "$EUCA_TMP" != "`readlink -f ${EUCALYPTUS}`" ]; then

		echo "Warning: you should check EUCALYPTUS in conf file"

	fi

else

	# on removal of RPM we can get in a state in which the conf file

	# is gone but the services are still running: make this hard

	# failure only if we are not stopping

	echo "Cannot find eucalyptus configuration file!"

	if [ "$1" != "stop" ]; then

		exit 1

	fi

fi

export EUCALYPTUS

pidfile=$EUCALYPTUS/var/run/eucalyptus/eucalyptus-cloud.pid

# read in the services which should be running

read_ws_list() {

	STORAGE_WS="N"

	WALRUS_WS="N"

	CLOUD_WS="N"	

	NAME=""

	for x in `cat $EUCALYPTUS/var/lib/eucalyptus/services 2> /dev/null` ; do

		case $x in

		walrus)

			WALRUS_WS="Y"

			NAME="walrus $NAME"

			;;

		sc) 

			STORAGE_WS="Y"

			NAME="sc $NAME"

			;;

		cloud)

			CLOUD_WS="Y"

			NAME="cloud $NAME"

			;;

		*)

			echo "Unknown service! ($x)"

			;;

		esac

	done

}

check_java() {

	java_min_version="1.6.0"

	# we need a good JAVA_HOME

	if [ -z "$JAVA_HOME" ]; then

		# user didn't setup JAVA_HOME, let's look for it

		if [ -z "$JAVA" ]; then

			echo "Cannot find java!"

			exit 1

		fi

		JAVA_HOME="`readlink -f $JAVA`"

		JAVA_HOME="`dirname $JAVA_HOME|sed 's:/jre/bin::'`"

		if [ ! -d $JAVA_HOME ]; then

			echo "Cannot find a good JAVA_HOME"

			exit 1

		fi

	fi

	# to be sure we are using the right java/JAVA_HOME

	JAVA="$JAVA_HOME/jre/bin/java"

	# let's see if we can find a decent java

	if [ -x "$JAVA" ]; then

		java_version=`$JAVA -version 2>&1 | grep "java version" | sed -e 's/.*java version "\(.*\)".*/\1/'`

		if [ `expr $java_version "<" $java_min_version` -eq 0 ]; then

			export JAVA_HOME

			return 

		fi

	fi

	echo "Eucalyptus needs java version >= $java_min_version"

	exit 1

}

do_start() {

	if [ -z "$CLOUD_OPTS" ]; then

		local CLOUD_OPTS="--log-level=TRACE"

	fi

	# basic checks

	if [ ! -x $EUCALYPTUS/usr/sbin/euca_conf ]; then

		echo "Some eucalyptus components are missing"

		exit 1

	fi

	check_java

	cd $EUCALYPTUS/etc/eucalyptus

	# options from the configuration file

	if [ "$DISABLE_DNS" != "N" ]; then

		CLOUD_OPTS="$CLOUD_OPTS --remote-dns"

	fi

	if [ "$DISABLE_EBS" = "Y" ]; then

		CLOUD_OPTS="$CLOUD_OPTS --disable-storage"

	fi

	if [ "$DISABLE_ISCSI" != "N" ]; then

		CLOUD_OPTS="$CLOUD_OPTS --disable-iscsi"

	fi

	# enabled services

	if [ "$STORAGE_WS" != "Y" ]; then

		if [ "$DISABLE_EBS" != "Y" ]; then

			CLOUD_OPTS="$CLOUD_OPTS --disable-storage"

		fi

	else

		if [ "$DISABLE_EBS" = "Y" ]; then

			echo "DISABLE_EBS is set in eucalyptus.conf: not starting the sc"

		else

			if ! $EUCALYPTUS/usr/sbin/euca_conf --check sc ; then

				exit 1

			fi

		fi

	fi

	if [ "$WALRUS_WS" != "Y" ]; then

		CLOUD_OPTS="$CLOUD_OPTS --disable-walrus"

	else

		if ! $EUCALYPTUS/usr/sbin/euca_conf --check walrus ; then

			exit 1

		fi

	fi

	if [ "$CLOUD_WS" != "Y" ]; then

		CLOUD_OPTS="$CLOUD_OPTS --disable-cloud"

	else

		if ! $EUCALYPTUS/usr/sbin/euca_conf --check cloud ; then

			exit 1

		fi

	fi

	if [ "${STORAGE_WS}${CLOUD_WS}${WALRUS_WS}" = "NNN" ]; then

		# nothing to start

		NAME="none"

		return 0

	fi

    # try log4j for a bit, see if anyone panics. $EUCALYPTUS/usr/sbin/eucalyptus-cloud $CLOUD_OPTS -h $EUCALYPTUS -u $EUCA_USER --pidfile ${pidfile} -f -o $EUCALYPTUS/var/log/eucalyptus/cloud-output.log >/dev/null 2>&1

	$EUCALYPTUS/usr/sbin/eucalyptus-cloud $CLOUD_OPTS -h $EUCALYPTUS -u $EUCA_USER --pidfile ${pidfile} -f -L console-log >/dev/null 2>&1

	return $?

}

do_status() {

	if [ -s ${pidfile} ]; then

		pid=`cat ${pidfile} 2> /dev/null`

		if ! ps axww|grep $pid|grep eucalyptus-cloud.pid > /dev/null; then

			# pid file is not matching

			rm -f ${pidfile}

			return 1

		fi

	else

		# no pidfile, no running services

		return 1

	fi

	return $?

}

do_stop() {

	# now stop the service

	if [ -s "${pidfile}" ]; then

		pid=`cat $pidfile 2> /dev/null`

		kill $pid > /dev/null 2>&1

	else

		return

	fi

	# let's way few seconds than kill harder

	timeout=20

	while [ $timeout -gt 0 ]; do

		if do_status ; then

			sleep 1

			timeout=$(($timeout - 1))

		else

			break

		fi

	done

	if [ $timeout -eq 0 ]; then

		kill -9 $pid > /dev/null 2>&1 

	fi

	rm -f $pidfile

}

# let's get the user to use

if [ -z "$EUCA_USER" ] ; then

	EUCA_USER="root"

fi

# set the library path correctly

export LD_LIBRARY_PATH="$EUCALYPTUS/usr/lib/eucalyptus:$LD_LIBRARY_PATH"

#VERBOSE="yes"

# read services to start

read_ws_list

case "$1" in

  start)

	if [ "$VERBOSE" != no ]; then

		if [ "$WE_HAVE_LSB" = "Y" ]; then

			log_daemon_msg "Starting $DESC" "$NAME"

		else

			echo -n "Starting $DESC: $NAME"

		fi

	fi

	# let's check there is no previous cloud running

	if do_status ; then

		echo

		echo "another $DESC is already running!"

		if [ "$VERBOSE" != no ]; then

			if [ "$WE_HAVE_LSB" = "Y" ]; then

				log_end_msg 1

			fi

		fi

		exit 0

	fi

	do_start

	case "$?" in

	0|1) 

		if [ "$VERBOSE" != no ]; then

			if [ "$WE_HAVE_LSB" = "Y" ]; then

				log_end_msg 0

			else

				echo "done."

			fi

		fi

		;;

	*)

		if [ "$VERBOSE" != no ]; then

			if [ "$WE_HAVE_LSB" = "Y" ]; then

				log_end_msg 1

			else

				echo "failed!"

			fi

		fi

		;;

	esac

	;;

  stop)

	if [ "$VERBOSE" != no ]; then

		if [ "$WE_HAVE_LSB" = "Y" ]; then

			log_daemon_msg "Stopping $DESC" "$NAME"

		else

			echo -n "Stopping $DESC: $NAME"

		fi

	fi

	# let's check there is a previous cloud running

	if ! do_status ; then

		echo

		echo "no $DESC is running!"

		if [ "$VERBOSE" != no ]; then

			if [ "$WE_HAVE_LSB" = "Y" ]; then

				log_end_msg 1

			fi

		fi

		exit 0

	fi

	do_stop

	if [ "$VERBOSE" != no ]; then

		if [ "$WE_HAVE_LSB" = "Y" ]; then

			log_end_msg 0

		else

			echo "done."

		fi

	fi

	;;

  restart)

	$0 stop

	$0 start

  	;;

  status)

	if do_status ; then

		echo "$DESC ($NAME) is/are running"

	else

		exit 3

	fi

	;;

  *)

	echo "Usage: $0 {start|stop|restart}" >&2

	exit 3

	;;

esac