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/usr/lib/ocf/resource.d/heartbeat/AoEtarget is in cluster-agents 1:1.0.4-0ubuntu2.

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The actual contents of the file can be viewed below.

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#!/bin/bash
#
#
# AoEtarget OCF RA. 
# Manages an ATA-over-Ethernet (AoE) target utilizing the vblade utility.
#
#   (c) 2009-2010 Florian Haas, Dejan Muhamedagic,
#                 and Linux-HA contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# Further, this software is distributed without any warranty that it is
# free of the rightful claim of any third person regarding infringement
# or the like.  Any license provided herein, whether implied or
# otherwise, applies only to this software file.  Patent licenses, if
# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
#

######################################################################
# Initialization:

: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs

# Defaults
OCF_RESKEY_nic_default="eth0"
OCF_RESKEY_pid_default="${HA_RSCTMP}/AoEtarget-${OCF_RESOURCE_INSTANCE}.pid"
OCF_RESKEY_binary_default="/usr/sbin/vblade"

: ${OCF_RESKEY_nic=${OCF_RESKEY_nic_default}}
: ${OCF_RESKEY_pid=${OCF_RESKEY_pid_default}}
: ${OCF_RESKEY_binary=${OCF_RESKEY_binary_default}}

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

meta_data() {
    cat <<EOF
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="AoEtarget" version="0.1">
  <version>1.0</version>
  <longdesc lang="en">
This resource agent manages an ATA-over-Ethernet (AoE) target using vblade.
It exports any block device, or file, as an AoE target using the 
specified Ethernet device, shelf, and slot number.
</longdesc>
  <shortdesc lang="en">Manages ATA-over-Ethernet (AoE) target exports</shortdesc>
  <parameters>
    <parameter name="device" required="1">
      <longdesc lang="en">
The local block device (or file) to export as an AoE target.
</longdesc>
      <shortdesc lang="en">Device to export</shortdesc>
      <content type="string"/>
    </parameter>
    <parameter name="nic" required="1">
      <longdesc lang="en">
The local Ethernet interface to use for exporting this AoE target.
</longdesc>
      <shortdesc lang="en">Ethernet interface</shortdesc>
      <content type="string" default="${OCF_RESKEY_nic_default}"/>
    </parameter>
    <parameter name="shelf" required="0">
      <longdesc lang="en">
The AoE shelf number to use when exporting this target.
</longdesc>
      <shortdesc lang="en">AoE shelf number</shortdesc>
      <content type="integer"/>
    </parameter>
    <parameter name="slot" required="1">
      <longdesc lang="en">
The AoE slot number to use when exporting this target.
</longdesc>
      <shortdesc lang="en">AoE slot number</shortdesc>
      <content type="integer"/>
    </parameter>
    <parameter name="pid" required="0" unique="1">
      <longdesc lang="en">
The file to record the daemon pid to.
</longdesc>
      <shortdesc lang="en">Daemon pid file</shortdesc>
      <content type="string" default="${OCF_RESKEY_pid_default}"/>
    </parameter>
    <parameter name="binary" required="0">
      <longdesc lang="en">
Location of the vblade binary.
</longdesc>
      <shortdesc lang="en">vblade binary</shortdesc>
      <content type="string" default="${OCF_RESKEY_binary_default}"/>
    </parameter>
  </parameters>
  <actions>
    <action name="start" timeout="15"/>
    <action name="stop" timeout="15"/>
    <action name="monitor" timeout="15" interval="10" depth="0"/>
    <action name="reload" timeout="15"/>
    <action name="meta-data" timeout="5"/>
    <action name="validate-all" timeout="15"/>
  </actions>
</resource-agent>
EOF
}

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

AoEtarget_usage() {
	cat <<END
usage: $0 {start|stop|status|monitor|validate-all|meta-data}

Expects to have a fully populated OCF RA-compliant environment set.
END
}

AoEtarget_start() {
    AoEtarget_monitor
    if [ $? =  $OCF_SUCCESS ]; then
	return $OCF_SUCCESS
    fi
    ocf_log info "Exporting device ${OCF_RESKEY_device} on ${OCF_RESKEY_nic} as shelf ${OCF_RESKEY_shelf}, slot ${OCF_RESKEY_slot}"
    ${OCF_RESKEY_binary} ${OCF_RESKEY_shelf} ${OCF_RESKEY_slot} \
	${OCF_RESKEY_nic} ${OCF_RESKEY_device} 2>&1 &
    rc=$?
    pid=$!
    if [ $rc -ne 0 ]; then
	return $OCF_ERR_GENERIC
    fi
    echo $pid > ${OCF_RESKEY_pid} && return $OCF_SUCCESS
    return $OCF_ERR_GENERIC
}

AoEtarget_stop() {
    AoEtarget_monitor
    if [ $? -eq  $OCF_SUCCESS ]; then
	ocf_log info "Unxporting device ${OCF_RESKEY_device} on ${OCF_RESKEY_nic} as shelf ${OCF_RESKEY_shelf}, slot ${OCF_RESKEY_slot}"
	pid=$(cat ${OCF_RESKEY_pid})
	kill -TERM $pid
	# loop until we're really stopped, wait for the LRM to time us
	# out if not
	while AoEtarget_monitor; do
	    sleep 1
	done
    fi
    # Clean up pid file
    rm -f ${OCF_RESKEY_pid}
    return $OCF_SUCCESS
}

AoEtarget_monitor() {
    ocf_pidfile_status ${OCF_RESKEY_pid} >/dev/null 2>&1
    rc=$?
    if [ $rc -eq 2 ]; then
	# no pid file, must assume we're not running
	return $OCF_NOT_RUNNING
    elif [ $rc -eq 1 ]; then
	# stale pid file, assume something went wrong
	return $OCF_ERR_GENERIC
    fi
    return $OCF_RUNNING
}

AoEtarget_validate() {
    # Is our binary executable?
    if [ ! -x ${OCF_RESKEY_binary} ]; then
	ocf_log error "${OCF_RESKEY_binary} not found or not executable"
	return $OCF_ERR_INSTALLED
    fi

    # Do we have all required variables?
    for var in device nic shelf slot pid; do
	param="OCF_RESKEY_${var}"
	if [ -z "${!param}" ]; then
	    ocf_log error "Missing resource parameter \"$var\"!"
	    return $OCF_ERR_CONFIGURED
	fi
    done

    # Is the pid file directory writable? 
    pid_dir=`dirname "$OCF_RESKEY_pid"`
    touch "$pid_dir/$$"
    if [ $? != 0 ]; then
	ocf_log error "Cannot create pid file in $pid_dir -- check directory permissions"
	return $OCF_ERR_INSTALLED
    fi
    rm "$pid_dir/$$"

    # Does the device we are trying to export exist?
    if [ ! -e ${OCF_RESKEY_device} ]; then
	ocf_log error "${OCF_RESKEY_device} does not exist"
	return $OCF_ERR_INSTALLED
    fi
    return $OCF_SUCCESS
}

case $1 in
  meta-data)
	meta_data
	exit $OCF_SUCCESS
	;;
  usage|help)
	AoEtarget_usage
	exit $OCF_SUCCESS
	;;
esac

# Everything except usage and meta-data must pass the validate test
AoEtarget_validate || exit $?

case $__OCF_ACTION in
    start)
	AoEtarget_start
	;;
    stop)
	AoEtarget_stop
	;;
    status|monitor)
	AoEtarget_monitor
	;;
    reload)
	ocf_log err "Reloading..."
	AoEtarget_start
	;;
    validate-all)
	AoEtarget_validate
	;;
    *)
	AoEtarget_usage
	exit $OCF_ERR_UNIMPLEMENTED
	;;
esac

rc=$?
ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION : $rc"
exit $rc