Page MenuHomeClusterLabs Projects
Files F4525461

clustermon.sh
No OneTemporary
Actions

clustermon.sh
View Options

#!/bin/bash
#
# Cluster Monitoring Script, for use with crm_mon and Pacemaker,
# to emulate the no-longer-supported --snmp-traps and --mail options.
# (However, alerts are the recommended means of doing this since
# Pacemaker 1.1.15.)
#
# Copyright 2013 Rob Thomas <xrobau@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# Uncomment these lines to run a test of the script.
#CRM_notify_desc=OK
#CRM_notify_node=freepbx-a
#CRM_notify_rc=0
#CRM_notify_recipient=emailalert@hipbx.org
#CRM_notify_rsc=spare_fs
#CRM_notify_status=0
#CRM_notify_target_rc=0
#CRM_notify_task=start
# Set some defaults
FROMADDR=cluster@`hostname`
# Check to see if we should do anything with this alert.
# You could put some smarts in this, a database lookup, etc
# This is just a simple setup that tries to guess what you
# want to do based on the notify_recipient option to crm_mon
# Basic examples:
# pcs resource create ClusterMon-Email --clone ClusterMon user=root extra_options="-E /usr/local/bin/clustermon-new.sh -e emailalert@hipbx.org"
# pcs resource create ClusterMon-SNMP --clone ClusterMon user=root extra_options="-E /usr/local/bin/clustermon-new.sh -e 192.168.254.254"
function getDest {
# This looks for an '@' in the notify_recipient. If it finds it, it'll send an email.
# Otherwise, it'll send a SNMP trap.
if [ ! -z "${CRM_notify_recipient}" ]
then
if [[ "${CRM_notify_recipient}" == *@* ]]
then
SMTPDEST=${CRM_notify_recipient}
DEST='smtp'
else
SNMPDEST=${CRM_notify_recipient}
DEST='snmp'
fi
else
# Hard coded defaults. Please change these.
SMTPDEST='ididntchangethedefaults@hipbx.org'
SNMPDEST='192.168.254.254'
SNMPCOMMUNITY='public'
# If 'DEST' is blank, nothing happens.
DEST='both'
fi
}
# Other Predefined functions
function sendsmtp {
# Re-implemtation of code in crm_mon.c
[ -z "${SMTPDEST}" ] && return
[ -z "${CRM_notify_node}" ] && CRM_notify_node="-"
node=${CRM_notify_node}
[ -z "${CRM_notify_rsc}" ] && CRM_notify_rsc="-"
rsc=${CRM_notify_rsc}
[ -z "${CRM_notify_desc}" ] && CRM_notify_desc="-"
desc=${CRM_notify_desc}
crm_mail_prefix="Cluster notification"
subject="${crm_mail_prefix} - ${CRM_notify_task} event for ${rsc} on ${node}"
body="\n${crm_mail_pref}\n====\n\n"
if [ ${CRM_notify_target_rc} -eq ${CRM_notify_rc} ]
then
body="${body}Completed operation ${CRM_notify_task} for resource ${rsc} on ${node}\n"
else
body="${body}Operation ${CRM_notify_task} for resource ${rsc} on ${node} failed: ${desc}\n"
fi
statusstr=$(ocf_status ${CRM_notify_status})
body="${body}\nDetails:\n\toperation status: (${CRM_notify_status}) ${statusstr}\n"
if [ "${CRM_notify_status}" -eq 0 ]
then
result=$(ocf_exitcode ${CRM_notify_rc})
target=$(ocf_exitcode ${CRM_notify_target_rc})
body="${body}\tscript returned: (${CRM_notify_rc}) ${result}\n"
body="${body}\texpected return value: (${CRM_notify_target_rc}) ${target}\n"
fi
echo -e $body | mail -r "$FROMADDR" -s "$subject" "$SMTPDEST"
}
function ocf_status {
case $1 in
-1) echo "pending" ;;
0) echo "complete" ;;
1) echo "Cancelled" ;;
2) echo "Timed Out" ;;
3) echo "NOT SUPPORTED" ;;
4) echo "Error" ;;
5) echo "Not installed" ;;
*) echo "Exceptionally unusual" ;;
esac
}
function ocf_exitcode {
case $1 in
0) echo "OK" ;;
1) echo "Unknown Error" ;;
2) echo "Invalid Parameter" ;;
3) echo "Unimplemented Feature" ;;
4) echo "Insufficient Privileges" ;;
5) echo "not installed" ;;
6) echo "not configured" ;;
7) echo "not running" ;;
8) echo "master" ;;
9) echo "master (failed)" ;;
192) echo "OCF_EXEC_ERROR" ;;
193) echo "OCF_UNKNOWN" ;;
194) echo "OCF_SIGNAL" ;;
195) echo "OCF_NOT_SUPPORTED" ;;
196) echo "OCF_PENDING" ;;
197) echo "OCF_CANCELLED" ;;
198) echo "OCF_TIMEOUT" ;;
199) echo "OCF_OTHER_ERROR" ;;
*) echo "Exceptionally unknown error" ;;
esac
}
function sendsnmp() {
[ -f /usr/bin/snmptrap ] && /usr/bin/snmptrap -v 2c -c "$SNMPCOMMUNITY" "$SNMPDEST" "" PACEMAKER-MIB::pacemakerNotification \
PACEMAKER-MIB::pacemakerNotificationNode s "${CRM_notify_node}" \
PACEMAKER-MIB::pacemakerNotificationResource s "${CRM_notify_rsc}" \
PACEMAKER-MIB::pacemakerNotificationOperation s "${CRM_notify_task}" \
PACEMAKER-MIB::pacemakerNotificationDescription s "${CRM_notify_desc}" \
PACEMAKER-MIB::pacemakerNotificationStatus i "${CRM_notify_status}" \
PACEMAKER-MIB::pacemakerNotificationReturnCode i ${CRM_notify_rc} \
PACEMAKER-MIB::pacemakerNotificationTargetReturnCode i ${CRM_notify_target_rc}
}
# Lets see who wants to do what with this.
getDest
# Do we want to do anything with this alert?
if [ -z "$DEST" ]
then
exit 0;
fi
if [ "$DEST" == "both" -o "$DEST" == "smtp" ]
then
sendsmtp;
fi
if [ "$DEST" == "both" -o "$DEST" == "snmp" ]
then
sendsnmp;
fi

File Metadata

Mime Type
text/x-shellscript
Expires
Thu, Jun 26, 7:06 PM (1 d, 7 h)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
1959475
Default Alt Text
clustermon.sh (5 KB)

Event Timeline