#!/bin/sh
#
# License: GNU General Public License (GPL) 
# Author:  Martin Fick <mogulguy@yahoo.com>
# Date:    04/19/07
# Version: 1.1
#
#	This script manages a VServer instance
#
#	It can start or stop a VServer
#
#	usage: $0 {start|stop|status|monitor|meta-data}
#
#
#       OCF parameters are as below
#       OCF_RESKEY_vserver
#
#######################################################################
# Initialization:

#. /usr/lib/heartbeat/ocf-shellfuncs

USAGE="usage: $0 {start|stop|status|monitor|meta-data}";

#######################################################################


meta_data() {
        cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="VServer">
 <version>1.0</version>
 <longdesc lang="en">
This script manages a VServer instance.
It can start or stop a VServer.
 </longdesc>
 <shortdesc lang="en">OCF Resource Agent compliant VServer script.</shortdesc>

 <parameters>

  <parameter name="vserver" unique="1" required="1">
   <longdesc lang="en">
The vserver name is the name as found under /etc/vservers
   </longdesc>
   <shortdesc lang="en">VServer Name</shortdesc>
    <content type="string" default="" />
   </parameter>

 </parameters>

 <actions>
  <action name="start"   timeout="2m" />
  <action name="stop"    timeout="1m" />
  <action name="monitor" depth="0"  timeout="1m" interval="5s" start-delay="2m" />
  <action name="status" depth="0"  timeout="1m" interval="5s" start-delay="2m" />
  <action name="meta-data"  timeout="1m" />
 </actions>
</resource-agent>
END
}

vserver_reload() {
    vserver_stop || return
    vserver_start
}

vserver_stop() {
  #
  #	Is the VServer already stopped?
  #
    vserver_status
    [ $? -ne 0 ] && return 0

    /usr/sbin/vserver "$OCF_RESKEY_vserver" "stop"

    vserver_status
    [ $? -ne 0 ] && return 0

    return 1
}

vserver_start() {
    vserver_status
    [ $? -eq 0 ] && return 0

    /usr/sbin/vserver "$OCF_RESKEY_vserver" "start"
    vserver_status
}

vserver_status() {
    /usr/sbin/vserver "$OCF_RESKEY_vserver" "status"
    rc=$?
    if [ $rc -eq 0 ]; then
	echo "running"
        return 0
    elif [ $rc -eq 3 ]; then
	echo "stopped"
    else
	echo "unknown"
    fi
    return 7
}

vserver_monitor() {
  vserver_status
}


vserver_usage() {
  echo $USAGE >&2
}

vserver_info() {
cat - <<!INFO
	Abstract=VServer Instance takeover
	Argument=VServer Name
	Description:
	A Vserver is a simulated server which is fairly hardware independent
        so it can be easily setup to run on several machines.
	Please rerun with the meta-data command for a list of \\
	valid arguments and their defaults.
!INFO
}

#
#	Start or Stop the given VServer...
#

if [ $# -ne 1 ] ; then
  vserver_usage
  exit 2
fi

  case "$1" in
    start|stop|status|monitor|reload|info|usage)    vserver_$1 ;;
    meta-data)   meta_data ;;
    validate-all|notify|promote|demote)  exit 3 ;;

    *)  vserver_usage ; exit 2 ;;
  esac