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/usr/lib/ocf/resource.d/heartbeat/SysInfo is in resource-agents 1:3.9.2-5ubuntu4.

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The actual contents of the file can be viewed below.

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#!/bin/bash
#
#
#	SysInfo OCF Resource Agent
#	It records (in the CIB) various attributes of a node
#
# Copyright (c) 2004 SUSE LINUX AG, Lars Marowsky-Brée
#                    All Rights Reserved.
#
# 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

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

meta_data() {
	cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="SysInfo">
<version>1.0</version>

<longdesc lang="en">
This is a SysInfo Resource Agent.
It records (in the CIB) various attributes of a node
Sample Linux output:
   arch:   i686
   os:     Linux-2.4.26-gentoo-r14
   free_swap:      1999
   cpu_info:       Intel(R) Celeron(R) CPU 2.40GHz
   cpu_speed:      4771.02
   cpu_cores:      1
   cpu_load:       0.00
   ram_total:      513
   ram_free:       117
   root_free:      2.4

Sample Darwin output:
   arch:   i386
   os:     Darwin-8.6.2
   cpu_info:       Intel Core Duo
   cpu_speed:      2.16
   cpu_cores:      2
   cpu_load:       0.18
   ram_total:      2016
   ram_free:       787
   root_free:      13

Units:
   free_swap: Mb
   ram_*:     Mb
   root_free: Gb
   cpu_speed (Linux): bogomips
   cpu_speed (Darwin): Ghz

</longdesc>
<shortdesc lang="en">Records various node attributes in the CIB</shortdesc>

<parameters>

<parameter name="pidfile" unique="0">
<longdesc lang="en">PID file</longdesc>
<shortdesc lang="en">PID file</shortdesc>
<content type="string" default="$OCF_RESKEY_pidfile" />
</parameter>

<parameter name="delay" unique="0">
<longdesc lang="en">Interval to allow values to stabilize</longdesc>
<shortdesc lang="en">Dampening Delay</shortdesc>
<content type="string" default="0s" />
</parameter>

</parameters>
<actions>
<action name="start"   timeout="20s" />
<action name="stop"    timeout="20s" />
<action name="monitor" timeout="20s" interval="60s"/>
<action name="meta-data"  timeout="5" />
<action name="validate-all"  timeout="20s" />
</actions>
</resource-agent>
END
}

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

UpdateStat() {
    name=$1; shift
    value="$*"
    echo -e "$name:\t$value"
    ${HA_SBIN_DIR}/attrd_updater ${OCF_RESKEY_delay} -S status -n $name -v "$value"
}

SysInfoStats() {

    UpdateStat arch "`uname -m`"
    UpdateStat os "`uname -s`-`uname -r`"

    case `uname -s` in
	"Darwin")
	    mem=`top -l 1 | grep Mem: | awk '{print $10}'`
	    mem_used=`top -l 1 | grep Mem: | awk '{print $8}'`
	    mem=`SysInfo_mem_units $mem`
	    mem_used=`SysInfo_mem_units $mem_used`
	    mem_total=`expr $mem_used + $mem`
	    cpu_type=`system_profiler SPHardwareDataType | grep "CPU Type:"`
	    cpu_type=${cpu_type/*: /}
	    cpu_speed=`system_profiler SPHardwareDataType | grep "CPU Speed:" | awk '{print $3}'`
	    cpu_cores=`system_profiler SPHardwareDataType | grep "Number Of"`
	    cpu_cores=${cpu_cores/*: /}
	;;
	"Linux")
	    if [ -f /proc/cpuinfo ]; then
		cpu_type=`grep "model name" /proc/cpuinfo | head -n 1`
		cpu_type=${cpu_type/*: /}
		cpu_speed=`grep "bogomips" /proc/cpuinfo | head -n 1`
		cpu_speed=${cpu_speed/*: /}
		cpu_cores=`grep "^processor" /proc/cpuinfo | wc -l`
	    fi

	    if [ -f /proc/meminfo ]; then
	        # meminfo results are in kB
		mem=`grep "SwapFree" /proc/meminfo | awk '{print $2"k"}'`
		if [ ! -z $mem ]; then
		    UpdateStat free_swap `SysInfo_mem_units $mem`
		fi
		mem=`grep "Inactive" /proc/meminfo | awk '{print $2"k"}'`
		mem_total=`grep "MemTotal" /proc/meminfo | awk '{print $2"k"}'`
	    else
		mem=`top -n 1 | grep Mem: | awk '{print $7}'`
	    fi
	    ;;
	*)
    esac

    if [ x != x"$cpu_type" ]; then
	UpdateStat cpu_info "$cpu_type"
    fi

    if [ x != x"$cpu_speed" ]; then
	UpdateStat cpu_speed "$cpu_speed"
    fi

    if [ x != x"$cpu_cores" ]; then
	UpdateStat cpu_cores "$cpu_cores"
    fi

    loads=`uptime`
    load15=`echo ${loads} | awk '{print $10}'`
    UpdateStat cpu_load $load15

    if [ ! -z "$mem" ]; then
        # Massage the memory values
 	UpdateStat ram_total `SysInfo_mem_units $mem_total`
	UpdateStat ram_free `SysInfo_mem_units $mem`
    fi

    # Portability notes:
    #   o df:   -h flag not available on Solaris 8.  (OK on 9, 10, ...) #FIXME#
    #   o tail: explicit "-n" not available in Solaris; instead simplify
    #	  'tail -n <c>' to the equivalent 'tail -<c>'.
    disk=`df -h / | tail -1 | awk '{print $4}'`
    if [ x != x"$disk" ]; then
        UpdateStat root_free `SysInfo_hdd_units $disk`
    fi
}

SysInfo_mem_units() {
    mem=$1

    if [ -z $1 ]; then 
	return
    fi

    memlen=`expr ${#mem} - 1`
    memlen_alt=`expr ${#mem} - 2`    
    if [ ${mem:$memlen:1} = "G" ]; then
	mem="${mem:0:$memlen}"
	if [ $mem != ${mem/./} ]; then
	    mem_before=${mem/.*/}
	    mem_after=${mem/*./}
	    mem=$[mem_before*1024]
	    if [ ${#mem_after} = 0 ]; then
		:
	    elif [ ${#mem_after} = 1 ]; then
		mem=$[mem+100*$mem_after]
	    elif [ ${#mem_after} = 2 ]; then
		mem=$[mem+10*$mem_after]
	    elif [ ${#mem_after} = 3 ]; then
		mem=$[mem+$mem_after]
	    else 
		mem_after=${mem_after:0:3}
		mem=$[mem+$mem_after]
	    fi
	fi
    elif [ ${mem:$memlen:1} = "M" ]; then
	mem=${mem/.*/}
	mem="${mem:0:$memlen}"
    elif [ ${mem:$memlen:1} = "k" ]; then
	mem="${mem:0:$memlen}"
	mem=${mem/.*/}
	mem=`expr $mem / 1024`
    elif [ ${mem:$memlen_alt:2} = "kB" ]; then
	mem="${mem:0:$memlen_alt}"
	mem=${mem/.*/}
	mem=`expr $mem / 1024`
    elif [ ${mem:$memlen_alt:2} = "Mb" ]; then
	mem="${mem:0:$memlen_alt}"
	mem=${mem/.*/}
    elif [ ${mem:$memlen_alt:2} = "MB" ]; then
	mem="${mem:0:$memlen_alt}"
	mem=${mem/.*/}
    fi

    # Round to the next multiple of 50
    memlen=`expr ${#mem} - 2`
    mem_round="${mem:$memlen:2}"
    if [ x$mem_round = x ]; then 
	:
    elif [ $mem_round = "00" ]; then 
	:
    else
	mem_round=`echo $mem_round | sed 's/^0//'`
	if [ $mem_round -lt "50" ]; then 
	    mem=$[mem+50]
	    mem=$[mem-$mem_round]

	else 
	    mem=$[mem+100]
	    mem=$[mem-$mem_round]
	fi
    fi
    echo $mem    
}

SysInfo_hdd_units() {
    disk=$1
    disklen=`expr ${#disk} - 1`
    disklen_alt=`expr ${#disk} - 2`
    if [ ${disk:$disklen:1} = "G" ]; then
	disk="${disk:0:$disklen}"
    elif [ ${disk:$disklen:1} = "M" ]; then
	disk="${disk:0:$disklen}"
	disk=${disk/.*/}
	disk=`expr $disk / 1024`
    elif [ ${disk:$disklen:1} = "k" ]; then
	disk="${disk:0:$disklen}"
	disk=${disk/.*/}
	disk=`expr $disk / 1048576`
    elif [ ${disk:$disklen_alt:2} = "kB" ]; then
	disk="${disk:0:$disklen_alt}"
	disk=${disk/.*/}
	disk=`expr $disk / 1048576`
    elif [ ${disk:$disklen_alt:2} = "Mb" ]; then
	disk="${disk:0:$disklen_alt}"
	disk=${disk/.*/}
	disk=`expr $disk / 1024`
    elif [ ${disk:$disklen_alt:2} = "MB" ]; then
	disk="${disk:0:$disklen_alt}"
	disk=${disk/.*/}
	disk=`expr $disk / 1024`
    fi
    echo $disk    
}

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

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

SysInfo_start() {
    echo $OCF_RESKEY_clone > $OCF_RESKEY_pidfile
    SysInfoStats
    exit $OCF_SUCCESS
}

SysInfo_stop() {
    rm $OCF_RESKEY_pidfile
    exit $OCF_SUCCESS
}

SysInfo_monitor() {
    if [ -f $OCF_RESKEY_pidfile ]; then
	clone=`cat $OCF_RESKEY_pidfile`
    fi

    if [ x$clone = x ]; then
	rm $OCF_RESKEY_pidfile
	exit $OCF_NOT_RUNNING

    elif [ $clone = $OCF_RESKEY_clone ]; then
	SysInfoStats
	exit $OCF_SUCCESS

    elif [ x$OCF_RESKEY_CRM_meta_globally_unique = xtrue  
	    -o x$OCF_RESKEY_CRM_meta_globally_unique = xTrue
	    -o x$OCF_RESKEY_CRM_meta_globally_unique = xyes
	    -o x$OCF_RESKEY_CRM_meta_globally_unique = xYes
	]; then
	SysInfoStats
	exit $OCF_SUCCESS
    fi
    exit $OCF_NOT_RUNNING
}

SysInfo_validate() {
    return $OCF_SUCCESS
}

if [ $# -ne 1 ]; then
    SysInfo_usage
    exit $OCF_ERR_ARGS
fi

: ${OCF_RESKEY_pidfile:="$HA_RSCTMP/SysInfo-${OCF_RESOURCE_INSTANCE}"}
: ${OCF_RESKEY_clone:="0"}
if [ x != x${OCF_RESKEY_delay} ]; then
    OCF_RESKEY_delay="-d ${OCF_RESKEY_delay}"
fi

case $__OCF_ACTION in
meta-data)	meta_data
		exit $OCF_SUCCESS
		;;
start)		SysInfo_start
		;;
stop)		SysInfo_stop
		;;
monitor)	SysInfo_monitor
		;;
validate-all)	SysInfo_validate
		;;
usage|help)	SysInfo_usage
		exit $OCF_SUCCESS
		;;
*)		SysInfo_usage
		exit $OCF_ERR_UNIMPLEMENTED
		;;
esac

exit $?