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//etc/rc0.d/K50cloud-config

#!/bin/sh

#
#    Copyright (C) 2012 Yahoo! Inc.
#
#    Author: Joshua Harlow <harlowja@yahoo-inc.com>
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License version 3, as
#    published by the Free Software Foundation.
#
#    This program 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/>.
#

# See: http://wiki.debian.org/LSBInitScripts
# See: http://tiny.cc/czvbgw
# See: http://www.novell.com/coolsolutions/feature/15380.html
# Also based on dhcpd in RHEL (for comparison)

### BEGIN INIT INFO
# Provides:          cloud-config
# Required-Start:    cloud-init cloud-init-local
# Should-Start:      $time
# Required-Stop:
# Should-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: The config cloud-init job
# Description:       Start cloud-init and runs the config phase
#	and any associated config modules as desired.
### END INIT INFO

# Return values acc. to LSB for all commands but status:
# 0	  - success
# 1       - generic or unspecified error
# 2       - invalid or excess argument(s)
# 3       - unimplemented feature (e.g. "reload")
# 4       - user had insufficient privileges
# 5       - program is not installed
# 6       - program is not configured
# 7       - program is not running
# 8--199  - reserved (8--99 LSB, 100--149 distrib, 150--199 appl)
# 
# Note that starting an already running service, stopping
# or restarting a not-running service as well as the restart
# with force-reload (in case signaling is not supported) are
# considered a success.

RETVAL=0

prog="cloud-init"
cloud_init="/usr/bin/cloud-init"
conf="/etc/cloud/cloud.cfg"

# If there exist sysconfig/default variable override files use it...
[ -f /etc/sysconfig/cloud-init ] && . /etc/sysconfig/cloud-init
[ -f /etc/default/cloud-init ] && . /etc/default/cloud-init

start() {
    [ -x $cloud_init ] || return 5
    [ -f $conf ] || return 6

echo -n $"Starting $prog: "
    $cloud_init $CLOUDINITARGS modules --mode config
    RETVAL=$?
    return $RETVAL
}

stop() {
    echo -n $"Shutting down $prog: "
    # No-op
    RETVAL=7
    return $RETVAL
}

case "$1" in
    start)
        start
        RETVAL=$?
	;;
    stop)
        stop
        RETVAL=$?
	;;
    restart|try-restart|condrestart)
        ## Stop the service and regardless of whether it was
        ## running or not, start it again.
        # 
        ## Note: try-restart is now part of LSB (as of 1.9).
        ## RH has a similar command named condrestart.
        start
        RETVAL=$?
	;;
    reload|force-reload)
        # It does not support reload
        RETVAL=3
	;;
    status)
        echo -n $"Checking for service $prog:"
        # Return value is slightly different for the status command:
        # 0 - service up and running
        # 1 - service dead, but /var/run/  pid  file exists
        # 2 - service dead, but /var/lock/ lock file exists
        # 3 - service not running (unused)
        # 4 - service status unknown :-(
        # 5--199 reserved (5--99 LSB, 100--149 distro, 150--199 appl.)
        RETVAL=3
	;;
    *)
        echo "Usage: $0 {start|stop|status|try-restart|condrestart|restart|force-reload|reload}"
        RETVAL=3
	;;
esac

exit $RETVAL