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#!/bin/sh
#
# Resource script for rsync daemon
#
# Description: Manages rsync daemon as an OCF resource in
# an High Availability setup.
#
# Author: Dhairesh Oza <odhairesh@novell.com>
# License: GNU General Public License (GPL)
#
#
# usage: $0 {start|stop|status|monitor|validate-all|meta-data}
#
# The "start" arg starts rsyncd.
#
# The "stop" arg stops it.
#
# OCF parameters:
# OCF_RESKEY_binpath
# OCF_RESKEY_conffile
# OCF_RESKEY_bwlimit
#
# Note:This RA requires that the rsyncd config files has a "pid file"
# entry so that it is able to act on the correct process
##########################################################################
# Initialization:
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
USAGE="Usage: $0 {start|stop|status|monitor|validate-all|meta-data}";
##########################################################################
usage()
{
echo $USAGE >&2
}
meta_data()
{
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="rsyncd">
<version>1.0</version>
<longdesc lang="en">
This script manages rsync daemon
</longdesc>
<shortdesc lang="en">Manages an rsync daemon</shortdesc>
<parameters>
<parameter name="binpath">
<longdesc lang="en">
The rsync binary path.
For example, "/usr/bin/rsync"
</longdesc>
<shortdesc lang="en">Full path to the rsync binary</shortdesc>
<content type="string" default="rsync"/>
</parameter>
<parameter name="conffile">
<longdesc lang="en">
The rsync daemon configuration file name with full path.
For example, "/etc/rsyncd.conf"
</longdesc>
<shortdesc lang="en">Configuration file name with full path</shortdesc>
<content type="string" default="/etc/rsyncd.conf" />
</parameter>
<parameter name="bwlimit">
<longdesc lang="en">
This option allows you to specify a maximum transfer
rate in kilobytes per second. This option is
most effective when using rsync with large files
(several megabytes and up). Due to the nature of
rsync transfers, blocks of data are sent, then if
rsync determines the transfer was too fast, it will
wait before sending the next data block. The result
is an average transfer rate equaling the specified
limit. A value of zero specifies no limit.
</longdesc>
<shortdesc lang="en">limit I/O bandwidth, KBytes per second</shortdesc>
<content type="string" default=""/>
</parameter>
</parameters>
<actions>
<action name="start" timeout="20s"/>
<action name="stop" timeout="20s"/>
<action name="monitor" depth="0" timeout="20s" interval="60s" />
<action name="validate-all" timeout="20s"/>
<action name="meta-data" timeout="5s"/>
</actions>
</resource-agent>
END
exit $OCF_SUCCESS
}
get_pid_and_conf_file()
{
if [ -n "$OCF_RESKEY_conffile" ]; then
CONF_FILE=$OCF_RESKEY_conffile
else
CONF_FILE="/etc/rsyncd.conf"
fi
grep -v "^#" "$CONF_FILE" | grep "pid file" > /dev/null
if [ $? -eq 0 ]; then
PIDFILE=`grep -v "^#" "$CONF_FILE" | grep "pid file" | awk -F "=" '{ print $2 }'`
fi
}
rsyncd_status()
{
if [ -n "$PIDFILE" -a -f $PIDFILE ]; then
# rsync is probably running
PID=`cat $PIDFILE`
if [ -n "$PID" ]; then
if ps -p $PID | grep rsync >/dev/null ; then
ocf_log info "rsync daemon running"
return $OCF_SUCCESS
else
ocf_log info "rsync daemon is not running but pid file exists"
return $OCF_ERR_GENERIC
fi
else
ocf_exit_reason "PID file empty!"
return $OCF_ERR_GENERIC
fi
fi
# rsyncd is not running
ocf_log info "rsync daemon is not running"
return $OCF_NOT_RUNNING
}
rsyncd_start()
{
# if rsyncd is running return success
rsyncd_status
retVal=$?
if [ $retVal -eq $OCF_SUCCESS ]; then
exit $OCF_SUCCESS
elif [ $retVal -ne $OCF_NOT_RUNNING ]; then
ocf_exit_reason "Error. Unknown status."
exit $OCF_ERR_GENERIC
fi
if [ -n "$OCF_RESKEY_binpath" ]; then
COMMAND="$OCF_RESKEY_binpath --daemon"
else
COMMAND="rsync --daemon"
fi
if [ -n "$OCF_RESKEY_conffile" ]; then
COMMAND="$COMMAND --config $OCF_RESKEY_conffile"
fi
if [ -n "$OCF_RESKEY_bwlimit" ]; then
COMMAND="$COMMAND --bwlimit $OCF_RESKEY_bwlimit"
fi
if grep -v "^#" "$CONF_FILE" | grep "pid file" > /dev/null ; then
$COMMAND;
if [ $? -ne 0 ]; then
ocf_exit_reason "Error. rsync daemon returned error $?."
exit $OCF_ERR_GENERIC
fi
else
ocf_exit_reason "Error. \"pid file\" entry required in the rsyncd config file by rsyncd OCF RA."
return $OCF_ERR_GENERIC
fi
ocf_log info "Started rsync daemon."
exit $OCF_SUCCESS
}
rsyncd_stop()
{
if rsyncd_status ; then
PID=`cat $PIDFILE`
if [ -n "$PID" ] ; then
kill $PID
if [ $? -ne 0 ]; then
kill -s KILL $PID
if [ $? -ne 0 ]; then
ocf_exit_reason "Error. Could not stop rsync daemon."
return $OCF_ERR_GENERIC
fi
fi
rm $PIDFILE 2>/dev/null
fi
fi
ocf_log info "Stopped rsync daemon."
exit $OCF_SUCCESS
}
rsyncd_monitor()
{
rsyncd_status
}
rsyncd_validate_all()
{
if [ -n "$OCF_RESKEY_binpath" -a ! -x "$OCF_RESKEY_binpath" ]; then
ocf_exit_reason "Binary path $OCF_RESKEY_binpath does not exist."
exit $OCF_ERR_ARGS
fi
if [ -n "$OCF_RESKEY_conffile" -a ! -f "$OCF_RESKEY_conffile" ]; then
ocf_exit_reason "Config file $OCF_RESKEY_conffile does not exist."
exit $OCF_ERR_ARGS
fi
if grep -v "^#" "$CONF_FILE" | grep "pid file" > /dev/null ; then
:
else
ocf_exit_reason "Error. \"pid file\" entry required in the rsyncd config file by rsyncd OCF RA."
return $OCF_ERR_GENERIC
fi
#Not checking "$OCF_RESKEY_bwlimit"
return $OCF_SUCCESS
}
#
# Main
#
if [ $# -ne 1 ]; then
usage
exit $OCF_ERR_ARGS
fi
case $1 in
start) get_pid_and_conf_file
rsyncd_start
;;
stop) get_pid_and_conf_file
rsyncd_stop
;;
status) get_pid_and_conf_file
rsyncd_status
;;
monitor)get_pid_and_conf_file
rsyncd_monitor
;;
validate-all) get_pid_and_conf_file
rsyncd_validate_all
;;
meta-data) meta_data
;;
usage) usage
exit $OCF_SUCCESS
;;
*) usage
exit $OCF_ERR_UNIMPLEMENTED
;;
esac

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