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#!/bin/sh
#
# Script for custom emergency powerfail shutdown of a host to do actions that
# were not implemented as part of normal OS shutdown routine for some reason.
# Must run as root or with sufficient privileges to execute the actions.
# Can print to >&3 some shell lines that would be sourced by the main script.
# Copyright (c) 2013-2015, by Eaton (R) Corporation. All rights reserved.
#
# Note: This file (ipp-host-shutdown.sample) is delivered by the package and
# will be overwritten in case of upgrades. It is an example implementation of
# a host-specific shutdown routine; make a copy, preferably with a name unique
# to a host-role in your deployment, and reference it from `ipp.conf` with the
# `SHUTDOWNSCRIPT_CUSTOM` variable.
# Notification configuration is normally exported by `ipp-os-shutdown`
#CONSOLE_NOTIF=1
#SYSLOG_NOTIF=1
#CMD_WALL="wall"
#CMD_SYSLOG="logger"
[ -z "${DefaultSubject-}" ] && \
DefaultSubject="Intelligent Power Protector (IPP) Emergency Shutdown"
[ -z "${MessageCustomShutdownStarting_s-}" ] && \
MessageCustomShutdownStarting_s="Initiating custom shutdown for %s..."
[ -z "${MessageCustomShutdownCompleted_s-}" ] && \
MessageCustomShutdownCompleted_s="Custom shutdown for %s is completed"
[ -z "${MessageIrreversibleTrap-}" ] && \
MessageIrreversibleTrap="Sorry, the powerfail shutdown is now irreversible, you should not abort it!"
# String with current timestamp (for logging)
ldate=""
get_ldate() {
ldate="`date +\"%y-%m-%d - %H:%M:%S\"`" && return 0
# Optional first argument can contain the default value
if [ -n "$1" ] ; then ldate="$1" ; else ldate="`date`"; fi
}
logmsg() {
# The argument string is wrapped with formalities and
# logged into echo > stdout, syslog and wall
echo "${ldate}: $*"
if [ "$CONSOLE_NOTIF" -eq 1 -a -n "$CMD_WALL" ]; then
echo "${DefaultSubject}\n$* at ${ldate}" | $CMD_WALL 2>/dev/null
fi
if [ "$SYSLOG_NOTIF" -eq 1 -a -n "$CMD_SYSLOG" ]; then
$CMD_SYSLOG -t eaton-ipp "$*" 2>/dev/null
fi
}
# The custom shutdown routine if clusterware is present
if [ -x /etc/init.d/NONEXISTENT/clusterware ]; then
get_ldate
logmsg $(printf "$MessageCustomShutdownStarting_s" "clusterware")
trap 'echo "$MessageIrreversibleTrap">&2' 1 2 3 15
# Launch the cluster shutdown command
/etc/init.d/NONEXISTENT/clusterware stop
# Sleep after/during(?) cluster shutdown
# This cycle allows to keep ignoring CTRL+C and equivalents
# (a single sleep is indeed broken out of despite our traps)
N=300
while [ $N -gt 0 ]; do
N="`expr $N - 1`"
sleep 1
done
# By default, after clusterware stop there's nothing fragile left
# so we can ask for fast shutdown
[ -z "${SDFLAG_COMMONOPTIONS-}" ] && \
echo 'SDFLAG_COMMONOPTIONS="$SDFLAG_UNGRACEFUL"' >&3
get_ldate
logmsg $(printf "$MessageCustomShutdownCompleted_s" "clusterware")
trap '-' 1 2 3 15
fi
exit 0
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