This file is indexed.

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

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
#!/bin/sh
#
# 
# LVM
#
# Description:	Manages an LVM volume as an HA resource
#
#
# Author:	Alan Robertson
# Support:	linux-ha@lists.linux-ha.org
# License:	GNU General Public License (GPL)
# Copyright:	(C) 2002 - 2005 International Business Machines, Inc.
#
#	This code significantly inspired by the LVM resource
#	in FailSafe by Lars Marowsky-Bree
#
#
# An example usage in /etc/ha.d/haresources: 
#       node1  10.0.0.170 ServeRAID::1::1 LVM::myvolname
#
# See usage() function below for more details...
#
#	  OCF parameters are as below:
#		OCF_RESKEY_volgrpname
#		
#######################################################################
# Initialization:

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

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


usage() {
  methods=`LVM_methods`
  methods=`echo $methods | tr ' ' '|'`
  cat <<-!
	usage: $0 $methods

	$0 manages an  Linux Volume Manager volume (LVM) as an HA resource

	The 'start' operation brings the given volume online
	The 'stop' operation takes the given volume offline
	The 'status' operation reports whether the volume is available
	The 'monitor' operation reports whether the volume seems present
	The 'validate-all' operation checks whether the OCF parameters are valid
	The 'methods' operation reports on the methods $0 supports

	!
}

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

<longdesc lang="en">
Resource script for LVM. It manages an  Linux Volume Manager volume (LVM) 
as an HA resource. 
</longdesc>
<shortdesc lang="en">Controls the availability of an LVM Volume Group</shortdesc>

<parameters>
<parameter name="volgrpname" unique="0" required="1">
<longdesc lang="en">
The name of volume group.
</longdesc>
<shortdesc lang="en">Volume group name</shortdesc>
<content type="string" default="" />
</parameter>
<parameter name="exclusive" unique="0" required="0">
<longdesc lang="en">
If set, the volume group will be activated exclusively.
</longdesc>
<shortdesc lang="en">Exclusive activation</shortdesc>
<content type="string" default="false" />
</parameter>

<parameter name="partial_activation" unique="0" required="0">
<longdesc lang="en">
If set, the volume group will be activated even only partial of the physical
volumes available. It helps to set to true, when you are using mirroring
logical volumes.
</longdesc>
<shortdesc lang="en">Activate VG even with partial PV only</shortdesc>
<content type="string" default="false" />
</parameter>

</parameters>

<actions>
<action name="start" timeout="30" />
<action name="stop" timeout="30" />
<action name="status" timeout="30" />
<action name="monitor" depth="0" timeout="30" interval="10" />
<action name="methods" timeout="5" />
<action name="meta-data" timeout="5" />
<action name="validate-all" timeout="5" />
</actions>
</resource-agent>
END
}

#
# methods: What methods/operations do we support?
#
LVM_methods() {
  cat <<-!
	start
	stop
	status
	monitor
	methods
	validate-all
	usage
	!
}

#
#	Return LVM status (silently)
#
LVM_status() {
  if 
    [ "$LVM_MAJOR" -eq "1" ]
  then
	vgdisplay $1 2>&1 | grep -i 'Status.*available' 2>&1 >/dev/null
	return $?
  else
	vgdisplay -v $1 2>&1 | grep -i 'Status[ \t]*available' 2>&1 >/dev/null
	return $?
  fi
}

#
#	Report on LVM volume status to stdout...
#
LVM_report_status() {

  if 
    [ "$LVM_MAJOR" -eq "1" ]
  then
	VGOUT=`vgdisplay $1 2>&1`
	echo "$VGOUT" | grep -i 'Status.*available' >/dev/null
	rc=$?
  else
	VGOUT=`vgdisplay -v $1 2>&1`
	echo "$VGOUT" | grep -i 'Status[ \t]*available' >/dev/null
	rc=$?
  fi

  if
    [ $rc -eq 0 ]
  then
    : Volume $1 is available
  else
    ocf_log debug "LVM Volume $1 is not available (stopped)"
    return $OCF_NOT_RUNNING
  fi

  if
    echo "$VGOUT" | grep -i 'Access.*read/write' >/dev/null
  then
    ocf_log debug "Volume $1 is available read/write (running)"
  else
    ocf_log debug "Volume $1 is available read-only (running)"
  fi
  
  return $OCF_SUCCESS
}

#
#	Monitor the volume - does it really seem to be working?
#
#
LVM_monitor() {
  if
    LVM_status $1
  then
    : OK
  else
    ocf_log info "LVM Volume $1 is offline"
    return $OCF_NOT_RUNNING
  fi

  vgck $1 >/dev/null 2>&1

  return $?
}

#
#	Enable LVM volume
#
LVM_start() {

  # TODO: This MUST run vgimport as well

  ocf_log info "Activating volume group $1"

  if [ "$LVM_MAJOR" -eq "1" ]; then
	ocf_run vgscan $1
  else
	ocf_run vgscan
  fi

  active_mode="ly"
  if ocf_is_true "$OCF_RESKEY_exclusive" ; then
  	active_mode="ey"
  fi	
  partial_active=""
  if ocf_is_true "$OCF_RESKEY_partial_activation" ; then
	partial_active="--partial"
  fi

  ocf_run vgchange -a $active_mode $partial_active $1 || return $OCF_ERR_GENERIC

  if LVM_status $1; then
    : OK Volume $1 activated just fine!
    return $OCF_SUCCESS 
  else
    ocf_log err "LVM: $1 did not activate correctly"
    return $OCF_NOT_RUNNING
  fi
}

#
#	Disable the LVM volume
#
LVM_stop() {

  vgdisplay "$1" 2>&1 | grep 'Volume group .* not found' >/dev/null && {
    ocf_log info "Volume group $1 not found"
    return 0
  }
  ocf_log info "Deactivating volume group $1"
  ocf_run vgchange -a ln $1 || return 1

  if
    LVM_status $1
  then
    ocf_log err "LVM: $1 did not stop correctly"
    return $OCF_ERR_GENERIC 
  fi

  # TODO: This MUST run vgexport as well

  return $OCF_SUCCESS
}

#
#	Check whether the OCF instance parameters are valid
#
LVM_validate_all() {
  check_binary $AWK

#	Off-the-shelf tests...  
  vgck "$VOLUME" >/dev/null 2>&1
  
  if [ $? -ne 0 ]; then
	ocf_log err "Volume group [$VOLUME] does not exist or contains error!"
	exit $OCF_ERR_GENERIC
  fi

#	Double-check
  if 
    [ "$LVM_MAJOR" -eq "1" ]
  then
	vgdisplay "$VOLUME" >/dev/null 2>&1
  else
	vgdisplay -v "$VOLUME" >/dev/null 2>&1
  fi

  if [ $? -ne 0 ]; then
	ocf_log err "Volume group [$VOLUME] does not exist or contains error!"
	exit $OCF_ERR_GENERIC
  fi

  return $OCF_SUCCESS
}
#
#	'main' starts here...
#

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

case $1 in
  meta-data)	meta_data
		exit $OCF_SUCCESS;;

  methods)	LVM_methods
		exit $?;;

  usage)	usage
		exit $OCF_SUCCESS;;
  *)		;;
esac

if 
  [ -z "$OCF_RESKEY_volgrpname" ]
then
#  echo "You must identify the volume group name!"
  ocf_log err "You must identify the volume group name!"
#  usage
  exit $OCF_ERR_CONFIGURED 
fi

# Get the LVM version number, for this to work we assume(thanks to panjiam):
# 
# LVM1 outputs like this
#
#	# vgchange --version
#	vgchange: Logical Volume Manager 1.0.3
#	Heinz Mauelshagen, Sistina Software  19/02/2002 (IOP 10)
#
# LVM2 and higher versions output in this format
#
#	# vgchange --version
#	LVM version:     2.00.15 (2004-04-19)
#	Library version: 1.00.09-ioctl (2004-03-31)
#	Driver version:  4.1.0

LVM_VERSION=`vgchange --version 2>&1 | \
	$AWK '/Logical Volume Manager/ {print $5"\n"; exit; }
	     /LVM version:/ {printf $3"\n"; exit;}'`
rc=$?

if
  ( [ $rc -ne 0 ] || [ -z "$LVM_VERSION" ] )
then
  ocf_log err "LVM: $1 could not determine LVM version. Try 'vgchange --version' manually and modify $0 ?"
  exit $OCF_ERR_INSTALLED
fi
LVM_MAJOR="${LVM_VERSION%%.*}"

VOLUME=$OCF_RESKEY_volgrpname

# What kind of method was invoked?
case "$1" in

  start)	LVM_start $VOLUME
		exit $?;;

  stop)		LVM_stop $VOLUME
		exit $?;;

  status)	LVM_report_status $VOLUME
		exit $?;;

  monitor)	LVM_monitor $VOLUME
		exit $?;;

  validate-all)	LVM_validate_all
		;;

  *)		usage
		exit $OCF_ERR_UNIMPLEMENTED;;
esac