lvm2/clvmd.ocf

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#!/bin/bash
# Copyright (c) 2008 Xinwei Hu
# 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 initialization
. ${OCF_ROOT}/resource.d/heartbeat/.ocf-shellfuncs
# Parameter defaults
: ${OCF_RESKEY_CRM_meta_globally_unique:="false"}
: ${OCF_RESKEY_daemon_timeout:="80"}
: ${OCF_RESKEY_daemon_options:="-d0"}
# Common variables
DAEMON="/usr/sbin/clvmd"
CMIRRORD="/usr/sbin/cmirrord"
status_daemons()
{
PID=`pidofproc "$DAEMON"`
NPID=`pidofproc "$CMIRRORD"`
if [ -n "$PID" -a -n "$NPID" ]; then
return $OCF_SUCCESS
fi
return $OCF_NOT_RUNNING
}
status_clvmd()
{
PID=`pidofproc "$DAEMON"`
if [ -n "$PID" ]; then
return $OCF_SUCCESS
fi
return $OCF_NOT_RUNNING
}
status_cmirrord()
{
PID=`pidofproc "$CMIRRORD"`
if [ -n "$PID" ]; then
return $OCF_SUCCESS
fi
return $OCF_NOT_RUNNING
}
bringup_clvmd()
{
if [ ! -e "$DAEMON" ]; then
ocf_log err "Required binary not found: $DAEMON"
return $OCF_ERR_INSTALLED
fi
start_daemon "$DAEMON" "$OCF_RESKEY_daemon_options"; rc=$?
if [ $rc != 0 ]; then
ocf_log err "Could not start $DAEMON"
return $OCF_ERR_GENERIC
fi
sleep 1
COUNT=0
rc=$OCF_NOT_RUNNING
while [ $rc = $OCF_NOT_RUNNING ]; do
COUNT=`expr $COUNT + 1`
if [ $COUNT -gt $OCF_RESKEY_daemon_timeout ]; then
ocf_log err "`basename $DAEMON` did not come up"
return $OCF_ERR_GENERIC
fi
status_clvmd; rc=$?
sleep 1
done
return $rc
}
bringup_cmirrord()
{
if [ ! -e "$CMIRRORD" ]; then
ocf_log err "Required binary not found: $DAEMON"
return $OCF_ERR_INSTALLED
fi
start_daemon "$CMIRRORD" "$OCF_RESKEY_daemon_options"; rc=$?
if [ $rc != 0 ]; then
ocf_log err "Could not start $CMIRRORD"
return $OCF_ERR_GENERIC
fi
sleep 1
COUNT=0
rc=$OCF_NOT_RUNNING
while [ $rc = $OCF_NOT_RUNNING ]; do
COUNT=`expr $COUNT + 1`
if [ $COUNT -gt $OCF_RESKEY_daemon_timeout ]; then
ocf_log err "`basename $DAEMON` did not come up"
return $OCF_ERR_GENERIC
fi
status_cmirrord; rc=$?
sleep 1
done
return $rc
}
kill_clvmd()
{
status_clvmd; rc=$?
if [ $rc != $OCF_SUCCESS ]; then
return rc
fi
ocf_log info "Stopping `basename "$DAEMON"`"
killproc -INT "$DAEMON"
sleep 1
status_daemons; rc=$?
COUNT=0
while [ $rc = $OCF_SUCCESS ]; do
COUNT=`expr $COUNT + 1`
if [ $COUNT -gt $OCF_RESKEY_daemon_timeout ]; then
ocf_log err "`basename $DAEMON` shutdown emergency"
killproc -9 "$DAEMON"
status_clvmd; rc=$?
if [ $rc = $OCF_NOT_RUNNING ]; then
return $OCF_SUCCESS
else
return $OCF_ERR_GENERIC
fi
fi
killproc -INT "$DAEMON"
sleep 1
status_clvmd; rc=$?
done
return $OCF_SUCCESS
}
kill_cmirrord()
{
status_cmirrord; rc=$?
if [ $rc != $OCF_SUCCESS ]; then
return rc
fi
ocf_log info "Stopping `basename "$CMIRRORD"`"
killproc -INT "$CMIRRORD"
sleep 1
status_cmirrord; rc=$?
COUNT=0
while [ $rc = $OCF_SUCCESS ]; do
COUNT=`expr $COUNT + 1`
if [ $COUNT -gt $OCF_RESKEY_daemon_timeout ]; then
ocf_log err "`basename $CMIRRORD` shutdown emergency"
killproc -9 "$CMIRRORD"
status_cmirrord; rc=$?
if [ $rc = $OCF_NOT_RUNNING ]; then
return $OCF_SUCCESS
else
return $OCF_ERR_GENERIC
fi
fi
killproc -INT "$CMIRRORD"
sleep 1
status_cmirrord; rc=$?
done
return $OCF_SUCCESS
}
clvmd_start()
{
clvmd_validate
ocf_log info "Starting $OCF_RESOURCE_INSTANCE"
status_clvmd; rc=$?
if [ $rc == $OCF_NOT_RUNNING ]; then
bringup_clvmd; rc=$?
if [ $rc != $OCF_SUCCESS ]; then
return $OCF_ERR_GENERIC
fi
fi
status_cmirrord; rc=$?
if [ $rc == $OCF_NOT_RUNNING ]; then
bringup_cmirrord; rc=$?
if [ $rc != $OCF_SUCCESS ]; then
kill_clvmd
return $OCF_ERR_GENERIC
fi
fi
return $OCF_SUCCESS
}
clvmd_stop() {
clvmd_validate
ocf_log info "Stopping $OCF_RESOURCE_INSTANCE"
status_clvmd; rc=$?
if [ $rc != $OCF_NOT_RUNNING ]; then
kill_clvmd; krc=$?
if [ $krc != $OCF_SUCCESS ]; then
ocf_log err "Failed to stop clvmd"
return $OCF_ERR_GENERIC
fi
fi
status_cmirrord; rc=$?
if [ $rc != $OCF_NOT_RUNNING ]; then
kill_cmirrord; krc=$?
if [ $krc != $OCF_SUCCESS ]; then
ocf_log err "Failed to stop cmirrord"
return $OCF_ERR_GENERIC
fi
fi
return $OCF_SUCCESS
}
clvmd_monitor() {
clvmd_validate
status_daemons
return $?
}
clvmd_usage() {
echo "usage: $0 {start|stop|monitor|validate-all|meta-data}"
echo " Expects to have a fully populated OCF RA-compliant environment set."
echo " In particualr, a value for OCF_ROOT"
}
clvmd_validate() {
: TODO: check for globally_unique=true and return OCF_ERR_CONFIGURED
case ${OCF_RESKEY_CRM_meta_globally_unique} in
yes|Yes|true|True|1)
ocf_log err "$OCF_RESOURCE_INSTANCE must be configured with the globally_unique=false meta attribute"
exit $OCF_ERR_CONFIGURED
;;
esac
return $OCF_SUCCESS
}
meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="clvmd">
<version>1.0</version>
<longdesc lang="en">
This is a Resource Agent for both clvmd and cmirrord.
It starts clvmd and cmirrord as anonymous clones.
</longdesc>
<shortdesc lang="en">clvmd resource agent</shortdesc>
<parameters>
<parameter name="daemon_timeout" unique="0">
<longdesc lang="en">
Number of seconds to allow the control daemon to come up and down
</longdesc>
<shortdesc lang="en">Daemon Timeout</shortdesc>
<content type="string" default="80"/>
</parameter>
<parameter name="daemon_options" unique="0">
<longdesc lang="en">
Options to clvmd. Refer to clvmd.8 for detailed descriptions.
</longdesc>
<shortdesc lang="en">Daemon Options</shortdesc>
<content type="string" default="-d2"/>
</parameter>
</parameters>
<actions>
<action name="start" timeout="90" />
<action name="stop" timeout="100" />
<action name="monitor" timeout="20" depth="0"/>
<action name="meta-data" timeout="5" />
<action name="validate-all" timeout="30" />
</actions>
</resource-agent>
END
}
case $__OCF_ACTION in
meta-data) meta_data
exit $OCF_SUCCESS
;;
start) clvmd_start
;;
stop) clvmd_stop
;;
monitor) clvmd_monitor
;;
validate-all) clvmd_validate
;;
usage|help) clvmd_usage
exit $OCF_SUCCESS
;;
*) clvmd_usage
exit $OCF_ERR_UNIMPLEMENTED
;;
esac
exit $?