Here's the next version. The start cmd might look a little scary (to me
at least), but now it starts the cmd without leaving the actual "su"
command around.
Here's a senseless example configuration:
<primitive id="sleep" class="ocf" type="anything" provider="dk">
<instance_attributes id="ia-sleep">
<attributes>
<nvpair id="ia-sleep-1" name="binfile" value="/bin/sleep"/>
<nvpair id="ia-sleep-2" name="cmdline_options" value="50000"/>
<nvpair id="ia-sleep-3" name="pidfile" value="/tmp/sleep.pid"/>
<nvpair id="ia-sleep-4" name="logfile" value="/tmp/sleep.log"/>
<nvpair id="ia-sleep-5" name="errlogfile" value="/tmp/sleep.err.log"/>
</attributes>
</instance_attributes>
<operations>
<op id="op-sleep-1" name="monitor" interval="60s" timeout="15s"/>
</operations>
</primitive>
Regards
Dominik
#!/bin/sh
#
# OCF Resource Agent compliant resource script.
#
# Copyright (c) 2008 IN-telegence GmbH & Co. KG, Dominik Klein
# 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.
# OCF instance parameters
# OCF_RESKEY_binfile
# OCF_RESKEY_cmdline_options
# OCF_RESKEY_pidfile
# OCF_RESKEY_logfile
# OCF_RESKEY_errlogfile
# OCF_RESKEY_user
# OCF_RESKEY_stop_escalation_sec
# OCF_RESKEY_monitor_hook
# Initialization:
. ${OCF_ROOT}/resource.d/heartbeat/.ocf-shellfuncs
getpid() { # make sure that the file contains a number
grep '^[0-9][0-9]*$' $1
}
anything_status() {
if test -f "$pidfile" && pid=`getpid $pidfile` && kill -0 $pid
then
return $OCF_RUNNING
else
return $OCF_NOT_RUNNING
fi
}
anything_start() {
if ! anything_status
then
if [ -n "$logfile" -a -n "$errlogfile" ]
then
# We have logfile and errlogfile, so redirect STDOUT
und STDERR to different files
cmd="su - $user -c \"nohup $binfile $cmdline_options >>
$logfile 2>> $errlogfile & \"'echo \$!' "
else if [ -n "$logfile" ]
then
# We only have logfile so redirect STDOUT and
STDERR to the same file
cmd="su - $user -c \"nohup $binfile
$cmdline_options >> $logfile 2>&1 & \"'echo \$!' "
else
# We have neither logfile nor errlogfile, so
we're not going to redirect anything
cmd="su - $user -c \"nohup $binfile
$cmdline_options & \"'echo \$!'"
fi
fi
ocf_log debug "Starting $process: $cmd"
# Execute the command as created above
eval $cmd > $pidfile
#echo $! > $pidfile
if anything_status
then
ocf_log debug "$process: $cmd started successfully"
return $OCF_SUCCESS
else
ocf_log err "$process: $cmd could not be started"
return $OCF_ERR_GENERIC
fi
else
# If already running, consider start successful
ocf_log debug "$process: $cmd is already running"
return $OCF_SUCCESS
fi
}
anything_stop() {
if anything_status
then
pid=`getpid $pidfile`
kill $pid
i=0
while [ $i -lt $stop_escalation_sec ]
do
# there may be programs without command line options
sleep 1
if ! anything_status
then
rm -f $pidfile > /dev/null 2>&1
return $OCF_SUCCESS
fi
let "i++"
done
# one last attempt with sigkill
ocf_log warn "Stop $process: $process could not be stopped by
SIGTERM, now sending SIGKILL."
kill -9 $pid
if ! anything_status
then
ocf_log debug "Stop $process: SIGKILL did the job."
return $OCF_SUCCESS
else
ocf_log err "Stop $process: failed to stop even with
SIGKILL."
return $OCF_ERR_GENERIC
fi
else
# was not running, so stop can be considered successful
rm -f $pidfile > /dev/null 2>&1
return $OCF_SUCCESS
fi
return $OCF_ERR_GENERIC
}
anything_monitor() {
anything_status
ret=$?
if [ $ret -eq $OCF_SUCCESS ]
then
# implement your deeper monitor operation here
if [ -n "$OCF_RESKEY_monitor_hook" ]; then
eval "$OCF_RESKEY_monitor_hook"
return
else
true
fi
else
return $ret
fi
}
process="$OCF_RESOURCE_INSTANCE"
binfile="$OCF_RESKEY_binfile"
cmdline_options="$OCF_RESKEY_cmdline_options"
pidfile="$OCF_RESKEY_pidfile"
[ -z "$pidfile" -a -n "$binfile" ] && pidfile=/var/run/anything_${process}.pid
logfile="$OCF_RESKEY_logfile"
errlogfile="$OCF_RESKEY_errlogfile"
user="$OCF_RESKEY_user"
[ -z "$user" ] && user=root
stop_escalation_sec="$OCF_RESKEY_stop_escalation_sec"
[ -z "$stop_escalation_sec" ] && stop_escalation_sec=10000
#ocf_log debug "binfile $binfile"
#ocf_log debug "cmdline_options $cmdline_options"
#ocf_log debug "logfile $logfile"
#ocf_log debug "errlogfile $errlogfile"
#ocf_log debug "process $process"
#ocf_log debug "pidfile $pidfile"
#ocf_log debug "stop_escalation_sec $stop_escalation_sec"
anything_validate() {
if [ ! -x "$binfile" ]
then
exit $OCF_ERR_INSTALLED
fi
if ! id $user &>/dev/null
then
exit $OCF_ERR_INSTALLED
fi
for filename in "$logfile" "$errlogfile"
do
if [ -n "$filename" ]
then
if [ ! -d "$(dirname $filename)" ]
then
ocf_log err "$(dirname $filename) for $filename
does not exist! Please create it."
exit $OCF_ERR_INSTALLED
fi
fi
done
return $OCF_SUCCESS
}
anything_meta() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="anything_ra">
<version>1.0</version>
<longdesc lang="en">
This is a custom OCF RA to start IN-telegence programs
</longdesc>
<shortdesc lang="en">DK's custom OCF resource agent</shortdesc>
<parameters>
<parameter name="binfile" required="1" unique="1">
<longdesc lang="en">
The full name of the binary to be executed
</longdesc>
<shortdesc lang="en">Full path name of the binary to be executed</shortdesc>
<content type="string" default="" />
</parameter>
<parameter name="cmdline_options">
<longdesc lang="en">
Command line options to pass to the binary
</longdesc>
<shortdesc lang="en">Command line options</shortdesc>
<content type="string" />
</parameter>
<parameter name="pidfile">
<longdesc lang="en">
File to read/write the PID from/to.
</longdesc>
<shortdesc lang="en">File to write STDOUT to</shortdesc>
<content type="string" />
</parameter>
<parameter name="logfile">
<longdesc lang="en">
File to write STDOUT to
</longdesc>
<shortdesc lang="en">File to write STDOUT to</shortdesc>
<content type="string" />
</parameter>
<parameter name="errlogfile">
<longdesc lang="en">
File to write STDERR to
</longdesc>
<shortdesc lang="en">File to write STDERR to</shortdesc>
<content type="string" />
</parameter>
<parameter name="user">
<longdesc lang="en">
User to run the command as
</longdesc>
<shortdesc lang="en">User to run the command as</shortdesc>
<content type="string" default="root"/>
</parameter>
<parameter name="stop_escalation_sec">
<longdesc lang="en">
In the stop operation: Seconds to wait for kill -TERM to succeed
before sending kill -KILL. Defaults to 10000, which usually translates to
the configured stop operation timeout (unless that is really looong).
</longdesc>
<shortdesc lang="en">seconds to wait before SIGKILL in stop</shortdesc>
<content type="string" default="10000"/>
</parameter>
<parameter name="monitor_hook">
<longdesc lang="en">
Command to run in monitor operation
</longdesc>
<shortdesc lang="en">Command to run in monitor operation</shortdesc>
<content type="string"/>
</parameter>
</parameters>
<actions>
<action name="start" timeout="90" />
<action name="stop" timeout="100" />
<action name="monitor" depth="0" timeout="20" interval="10" />
<action name="meta-data" timeout="5" />
<action name="validate-all" timeout="5" />
</actions>
</resource-agent>
END
exit 0
}
case "$1" in
meta-data|metadata|meta_data)
anything_meta
;;
start)
anything_start
;;
stop)
anything_stop
;;
monitor)
anything_monitor
;;
validate-all)
anything_validate
;;
promote|demote|notify)
exit $OCF_SUCCESS
;;
*)
ocf_log err "$0 was called with unsupported arguments: $*"
exit $OCF_ERR_GENERIC
;;
esac
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