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
|
#!/bin/bash
#
# Copyright (c) 2014 Anand Subramanian anands@redhat.com
# Copyright (c) 2015 Red Hat Inc.
# 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}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
if [ -n "${OCF_DEBUG_LIBRARY}" ]; then
. ${OCF_DEBUG_LIBRARY}
else
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
fi
# Defaults
OCF_RESKEY_ganesha_active_default="ganesha-active"
OCF_RESKEY_grace_active_default="grace-active"
OCF_RESKEY_grace_delay_default="5"
: ${OCF_RESKEY_ganesha_active=${OCF_RESKEY_ganesha_active_default}}
: ${OCF_RESKEY_grace_active=${OCF_RESKEY_grace_active_default}}
: ${OCF_RESKEY_grace_delay=${OCF_RESKEY_grace_delay_default}}
ganesha_meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="ganesha_mon">
<version>1.0</version>
<longdesc lang="en">
This Linux-specific resource agent acts as a dummy
resource agent for nfs-ganesha.
</longdesc>
<shortdesc lang="en">Manages the user-space nfs-ganesha NFS server</shortdesc>
<parameters>
<parameter name="ganesha_active">
<longdesc lang="en">NFS-Ganesha daemon active attribute</longdesc>
<shortdesc lang="en">NFS-Ganesha daemon active attribute</shortdesc>
<content type="string" default="ganesha-active" />
</parameter>
<parameter name="grace_active">
<longdesc lang="en">NFS-Ganesha grace active attribute</longdesc>
<shortdesc lang="en">NFS-Ganesha grace active attribute</shortdesc>
<content type="string" default="grace-active" />
</parameter>
<parameter name="grace_delay">
<longdesc lang="en">
NFS-Ganesha grace delay.
When changing this, adjust the ganesha_grace RA's monitor interval to match.
</longdesc>
<shortdesc lang="en">NFS-Ganesha grace delay</shortdesc>
<content type="string" default="5" />
</parameter>
</parameters>
<actions>
<action name="start" timeout="40s" />
<action name="stop" timeout="40s" />
<action name="status" timeout="20s" interval="60s" />
<action name="monitor" depth="0" timeout="10s" interval="10s" />
<action name="meta-data" timeout="20s" />
</actions>
</resource-agent>
END
return ${OCF_SUCCESS}
}
ganesha_mon_usage() {
echo "ganesha.nfsd USAGE"
}
# Make sure meta-data and usage always succeed
case ${__OCF_ACTION} in
meta-data) ganesha_meta_data
exit ${OCF_SUCCESS}
;;
usage|help) ganesha_usage
exit ${OCF_SUCCESS}
;;
*)
;;
esac
ganesha_mon_start()
{
ocf_log debug "ganesha_mon_start"
ganesha_mon_monitor
return $OCF_SUCCESS
}
ganesha_mon_stop()
{
ocf_log debug "ganesha_mon_stop"
return $OCF_SUCCESS
}
ganesha_mon_monitor()
{
local host=$(hostname -s)
local pid_file="/var/run/ganesha.pid"
local rhel6_pid_file="/var/run/ganesha.nfsd.pid"
local proc_pid="/proc/"
# RHEL6 /etc/init.d/nfs-ganesha adds -p /var/run/ganesha.nfsd.pid
# RHEL7 systemd does not. Would be nice if all distros used the
# same pid file.
if [ -e ${rhel6_pid_file} ]; then
pid_file=${rhel6_pid_file}
fi
if [ -e ${pid_file} ]; then
proc_pid="${proc_pid}$(cat ${pid_file})"
fi
if [ "x${proc_pid}" != "x/proc/" -a -d ${proc_pid} ]; then
attrd_updater -n ${OCF_RESKEY_ganesha_active} -v 1
if [ $? -ne 0 ]; then
ocf_log info "warning: attrd_updater -n ${OCF_RESKEY_ganesha_active} -v 1 failed"
fi
# ganesha_grace (nfs-grace) RA follows grace-active attr
# w/ constraint location
attrd_updater -n ${OCF_RESKEY_grace_active} -v 1
if [ $? -ne 0 ]; then
ocf_log info "warning: attrd_updater -n ${OCF_RESKEY_grace_active} -v 1 failed"
fi
# ganesha_mon (nfs-mon) and ganesha_grace (nfs-grace)
# track grace-active crm_attr (attr != crm_attr)
# we can't just use the attr as there's no way to query
# its value in RHEL6 pacemaker
crm_attribute --node=${host} --lifetime=forever --name=${OCF_RESKEY_grace_active} --update=1 2> /dev/null
if [ $? -ne 0 ]; then
host=$(hostname)
crm_attribute --node=${host} --lifetime=forever --name=${OCF_RESKEY_grace_active} --update=1 2> /dev/null
if [ $? -ne 0 ]; then
ocf_log info "mon monitor warning: crm_attribute --node=${host} --lifetime=forever --name=${OCF_RESKEY_grace_active} --update=1 failed"
fi
fi
return ${OCF_SUCCESS}
fi
# VIP fail-over is triggered by clearing the
# ganesha-active node attribute on this node.
#
# Meanwhile the ganesha_grace notify() runs when its
# nfs-grace resource is disabled on a node; which
# is triggered by clearing the grace-active attribute
# on this node.
#
# We need to allow time for it to run and put
# the remaining ganesha.nfsds into grace before
# initiating the VIP fail-over.
attrd_updater -D -n ${OCF_RESKEY_grace_active}
if [ $? -ne 0 ]; then
ocf_log info "warning: attrd_updater -D -n ${OCF_RESKEY_grace_active} failed"
fi
host=$(hostname -s)
crm_attribute --node=${host} --name=${OCF_RESKEY_grace_active} --update=0 2> /dev/null
if [ $? -ne 0 ]; then
host=$(hostname)
crm_attribute --node=${host} --name=${OCF_RESKEY_grace_active} --update=0 2> /dev/null
if [ $? -ne 0 ]; then
ocf_log info "mon monitor warning: crm_attribute --node=${host} --name=${OCF_RESKEY_grace_active} --update=0 failed"
fi
fi
sleep ${OCF_RESKEY_grace_delay}
attrd_updater -D -n ${OCF_RESKEY_ganesha_active}
if [ $? -ne 0 ]; then
ocf_log info "warning: attrd_updater -D -n ${OCF_RESKEY_ganesha_active} failed"
fi
return ${OCF_SUCCESS}
}
ganesha_mon_validate()
{
return ${OCF_SUCCESS}
}
ganesha_mon_validate
# Translate each action into the appropriate function call
case ${__OCF_ACTION} in
start) ganesha_mon_start
;;
stop) ganesha_mon_stop
;;
status|monitor) ganesha_mon_monitor
;;
*) ganesha_mon_usage
exit ${OCF_ERR_UNIMPLEMENTED}
;;
esac
rc=$?
# The resource agent may optionally log a debug message
ocf_log debug "${OCF_RESOURCE_INSTANCE} ${__OCF_ACTION} returned $rc"
exit $rc
|
