/usr/share/pacemaker/alerts/alert_file.sh.sample is in pacemaker-common 1.1.16-1.
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 | #!/bin/sh
#
# Copyright (C) 2015 Andrew Beekhof <andrew@beekhof.net>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This software 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
# General Public License for more details.
#
# You should have received a copy of the GNU General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
##############################################################################
# Sample configuration (cib fragment in xml notation)
# ================================
# <configuration>
# <alerts>
# <alert id="alert_sample" path="/path/to/alert_file.sh">
# <instance_attributes id="config_for_alert_file">
# <nvpair id="debug_option_1" name="debug_exec_order" value="false"/>
# </instance_attributes>
# <meta_attributes id="config_for_timestamp">
# <nvpair id="ts_fmt" name="timestamp-format" value="%H:%M:%S.%06N"/>
# </meta_attributes>
# <recipient id="logfile_destination" value="/path/to/logfile"/>
# </alert>
# </alerts>
# </configuration>
# No one will probably ever see this echo, unless they run the script manually.
# An alternative would be to log to the system log, or similar. (We can't send
# this to the configured recipient, because that variable won't be defined in
# this case either.)
if [ -z $CRM_alert_version ]; then
echo "$0 must be run by Pacemaker version 1.1.15 or later"
exit 0
fi
# Alert agents must always handle the case where no recipients are defined,
# even if it's a no-op (a recipient might be added to the configuration later).
if [ -z "${CRM_alert_recipient}" ]; then
echo "$0 requires a recipient configured with a full filename path"
exit 0
fi
debug_exec_order_default="false"
# Pacemaker passes instance attributes to alert agents as environment variables.
# It is completely up to the agent what instance attributes to support.
# Here, we define an instance attribute "debug_exec_order".
: ${debug_exec_order=${debug_exec_order_default}}
if [ "${debug_exec_order}" = "true" ]; then
tstamp=`printf "%04d. " "$CRM_alert_node_sequence"`
if [ ! -z "$CRM_alert_timestamp" ]; then
tstamp="${tstamp} $CRM_alert_timestamp (`date "+%H:%M:%S.%06N"`): "
fi
else
if [ ! -z "$CRM_alert_timestamp" ]; then
tstamp="$CRM_alert_timestamp: "
fi
fi
case $CRM_alert_kind in
node)
echo "${tstamp}Node '${CRM_alert_node}' is now '${CRM_alert_desc}'" >> "${CRM_alert_recipient}"
;;
fencing)
# Other keys:
#
# CRM_alert_node
# CRM_alert_task
# CRM_alert_rc
#
echo "${tstamp}Fencing ${CRM_alert_desc}" >> "${CRM_alert_recipient}"
;;
resource)
# Other keys:
#
# CRM_alert_target_rc
# CRM_alert_status
# CRM_alert_rc
#
if [ ${CRM_alert_interval} = "0" ]; then
CRM_alert_interval=""
else
CRM_alert_interval=" (${CRM_alert_interval})"
fi
if [ ${CRM_alert_target_rc} = "0" ]; then
CRM_alert_target_rc=""
else
CRM_alert_target_rc=" (target: ${CRM_alert_target_rc})"
fi
case ${CRM_alert_desc} in
Cancelled) ;;
*)
echo "${tstamp}Resource operation '${CRM_alert_task}${CRM_alert_interval}' for '${CRM_alert_rsc}' on '${CRM_alert_node}': ${CRM_alert_desc}${CRM_alert_target_rc}" >> "${CRM_alert_recipient}"
;;
esac
;;
*)
echo "${tstamp}Unhandled $CRM_alert_kind alert" >> "${CRM_alert_recipient}"
env | grep CRM_alert >> "${CRM_alert_recipient}"
;;
esac
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