pacemaker-resource-agents 1.1.14-2ubuntu1 / usr / lib / ocf / resource.d / pacemaker / SysInfo

#!/bin/sh
#
#
#	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:

: ${OCF_FUNCTIONS=${OCF_ROOT}/resource.d/heartbeat/.ocf-shellfuncs}
. ${OCF_FUNCTIONS}
: ${__OCF_ACTION=$1}

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

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
   cpu_speed (Linux): bogomips
   cpu_speed (Darwin): Ghz
   *_free:    GB (or user-defined: disk_unit)

</longdesc>
<shortdesc lang="en">SysInfo resource agent</shortdesc>

<parameters>

<parameter name="pidfile" unique="1">
<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>

<parameter name="disks" unique="0">
<longdesc lang="en">
Filesystems or Paths to be queried for free disk space as a SPACE
separated list - e.g "/dev/sda1 /tmp".
Results will be written to an attribute with leading slashes
removed, and other slashes replaced with underscore, and the word
'free' appended - e.g for /dev/sda1 it would be 'dev_sda1_free'.
Note: The root filesystem '/' is always queried to an attribute
named 'root_free'
</longdesc>
<shortdesc lang="en">List of Filesytems/Paths to query for free disk space</shortdesc>
<content type="string" />
</parameter>

<parameter name="disk_unit" unique="0">
<longdesc lang="en">
Unit to report disk free space in.
Can be one of: B, K, M, G, T, P (case-insensitive)
</longdesc>
<shortdesc lang="en">Unit to report disk free space in</shortdesc>
<content type="string" default="G"/>
</parameter>

<parameter name="min_disk_free" unique="0">
<longdesc lang="en">
The amount of free space required in monitored disks. If any
of the monitored disks has less than this amount of free space,
all resources will move away from the node. Set the node-health-strategy
property appropriately for this to take effect.
If the unit is not specified, it defaults to disk_unit.
</longdesc>
<shortdesc lang="en">minimum disk free space required</shortdesc>
<content type="string" default=""/>
</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="30" />
</actions>
</resource-agent>
END
}

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

UpdateStat() {
    name=$1; shift
    value="$*"
    printf "%s:\t%s\n" "$name" "$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 | awk -F': ' '/^CPU Type/ {print $2; exit}'`
	    cpu_speed=`system_profiler SPHardwareDataType | awk -F': ' '/^CPU Speed/ {print $2; exit}'`
	    cpu_cores=`system_profiler SPHardwareDataType | awk -F': ' '/^Number Of/ {print $2; exit}'`
	;;
	"Linux")
	    if [ -f /proc/cpuinfo ]; then
		cpu_type=`awk -F': ' '/model name/ {print $2; exit}' /proc/cpuinfo`
		cpu_speed=`awk -F': ' '/bogomips/ {print $2; exit}' /proc/cpuinfo`
		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 tail: explicit "-n" not available in Solaris; instead simplify
    #	  'tail -n <c>' to the equivalent 'tail -<c>'.
    for disk in "/" ${OCF_RESKEY_disks}; do
	unset disk_free disk_label
	disk_free=`df -h ${disk} | tail -1 | awk '{print $4}'`
	if [ x != x"$disk_free" ]; then
	    disk_label=`echo $disk | sed -e 's#^/$#root#;s#^/*##;s#/#_#g'`
	    disk_free=`SysInfo_hdd_units $disk_free`
	    UpdateStat ${disk_label}_free $disk_free
	    if [ -n "$MIN_FREE" ]; then
		test $disk_free -le $MIN_FREE &&
		    UpdateStat "#health_disk" "red"
	    fi
	fi
    done
}

SysInfo_megabytes() {
    # Size in megabytes
    echo $1 | awk '{ n = $0;
		     sub(/[0-9]+(.[0-9]+)?/, "");
		     split(n, a, $0);
                     n=a[1];
                     if ($0 == "G" || $0 == "") { n *= 1024 };
                     if (/^kB?/) { n /= 1024 };
                     printf "%d\n", n }' # Intentionaly round to an integer
}

SysInfo_mem_units() {
    mem=$1

    if [ -z $1 ]; then 
	return
    fi

    mem=$(SysInfo_megabytes "$1")
    # Round to the next multiple of 50
    r=$(($mem % 50))
    if [ $r != 0 ]; then
	mem=$(($mem + 50 - $r))
    fi

    echo $mem    
}

SysInfo_hdd_units() {
    # Defauts to size in gigabytes

    case $OCF_RESKEY_disk_unit in 
	[Pp]) echo $(($(SysInfo_megabytes "$1") / 1024 / 1024 / 1024));;
	[Tt]) echo $(($(SysInfo_megabytes "$1") / 1024 / 1024));;
	[Gg]) echo $(($(SysInfo_megabytes "$1") / 1024));;
	[Mm]) echo $(SysInfo_megabytes "$1");;
	[Kk]) echo $(($(SysInfo_megabytes "$1") * 1024));;
	[Bb]) echo $(($(SysInfo_megabytes "$1") * 1024 * 1024));;
	*) 
	    ocf_log err "Invalid value for disk_unit: $OCF_RESKEY_disk_unit"
	    echo $(($(SysInfo_megabytes "$1") / 1024));;
    esac
}

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_VARRUN/SysInfo-${OCF_RESOURCE_INSTANCE}"}
: ${OCF_RESKEY_disk_unit:="G"}
: ${OCF_RESKEY_clone:="0"}
if [ x != x${OCF_RESKEY_delay} ]; then
    OCF_RESKEY_delay="-d ${OCF_RESKEY_delay}"
fi
MIN_FREE=""
if [ -n "$OCF_RESKEY_min_disk_free" ]; then
	ocf_is_decimal "$OCF_RESKEY_min_disk_free" &&
		OCF_RESKEY_min_disk_free="$OCF_RESKEY_min_disk_free$OCF_RESKEY_disk_unit"
    MIN_FREE=`SysInfo_hdd_units $OCF_RESKEY_min_disk_free`
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 $?