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File nrpe.init of Package nagios-nrpe

#!/bin/bash
#
# Copyright (c) 2010 SUSE Linux Products GmbH
# Authors: Lars Vogdt (2010)
#
# /etc/init.d/nrpe
#   and its symbolic link
# /usr/sbin/rcnrpe
#
### BEGIN INIT INFO
# Provides:          nagios-nrpe
# Required-Start:    $remote_fs $syslog $network
# Should-Start:      cron
# Required-Stop:     $remote_fs $syslog
# Should-Stop:       cron
# Default-Start:     3 5
# Default-Stop:      0 1 2 6
# Short-Description: NRPE Nagios Remote Plugin Executor
# Description:       Start NRPE to allow remote execution of
#	Nagios plugins.
### END INIT INFO

NRPE_BIN="/usr/sbin/nrpe"
test -x $NRPE_BIN || { echo "$NRPE_BIN not installed";
    if [ "$1" = "stop" ]; then exit 0;
	else exit 5; fi; }

# Check for existence of needed config file and read it
NRPE_CONFIG="/etc/nagios/nrpe.cfg"
test -r $NRPE_CONFIG || { echo "$NRPE_CONFIG not existing";
    if [ "$1" = "stop" ]; then exit 0;
	else exit 6; fi; }

DEFAULT_PIDFILE="/var/run/nrpe/nrpe.pid"

function get_value() {
    if [ -n "$2" ]; then
        set -- `grep ^$1 $2 | sed 's@=@ @' | tr -d '[:cntrl:]'`
    else
        set -- `grep ^$1 $NRPE_CONFIG | sed 's@=@ @' | tr -d '[:cntrl:]'`
    fi
    shift # remove first ARG => search-string
    echo $*
}

# Shell functions sourced from /etc/rc.status:
. /etc/rc.status

# Reset status of this service
rc_reset

case "$1" in
    start)
    echo -n "Starting Nagios NRPE "
    pid_file="$(get_value pid_file)"
    nrpe_group="$(get_value nrpe_group)"
    nrpe_user="$(get_value nrpe_user)"
    : ${pid_file=:=$DEFAULT_PIDFILE}
    : ${nrpe_group:=nagios}
    : ${nrpe_user:=nagios}
    if [ -z "$pid_file" ]; then
        PIDDIR=$(dirname $pid_file)
    else
        PIDDIR=$(dirname $DEFAULT_PIDFILE)
    fi
    case "$PIDDIR" in 
        /var/run)
            if [ x"$nrpe_user" != x"root" ]; then
                DATESTRING=`date +"%Y%m%d"`
                mv -f "$NRPE_CONFIG"  "$NRPE_CONFIG-$DATESTRING"
                sed -e "s|^pid_file.*|pid_file=$DEFAULT_PIDFILE|g" "$NRPE_CONFIG-$DATESTRING" > "$NRPE_CONFIG" 
                /bin/logger -t rcnrpe "Configured $pid_file in $NRPE_CONFIG moved to $DEFAULT_PIDFILE. Backup is $NRPE_CONFIG-$DATESTRING"
                test -f "$pid_file" && rm "$pid_file"
                install -d -m755 -o$nrpe_user -g$nrpe_group $(dirname "$DEFAULT_PIDFILE")
            else
                test -d "$PIDDIR" || mkdir -p "$PIDDIR"
            fi
        ;;
        *)
            test -d $(dirname "$DEFAULT_PIDFILE") || install -d -m755 -o$nrpe_user -g$nrpe_group $(dirname "$DEFAULT_PIDFILE")
        ;;
    esac
	/sbin/startproc $NRPE_BIN -c $NRPE_CONFIG -d
	
	# Remember status and be verbose
	rc_status -v
	;;
    stop)
	# Stop daemons.
	echo -n "Shutting down Nagios NRPE "
	/sbin/killproc -TERM $NRPE_BIN

# Remember status and be verbose
	rc_status -v
	;;
    try-restart|condrestart)
        if test "$1" = "condrestart"; then
	        echo "${attn} Use try-restart ${done}(LSB)${attn} rather than condrestart ${warn}(RH)${norm}"
	fi
	$0 status
	if test $? = 0; then
	        $0 restart
	else
		rc_reset	# Not running is not a failure.
	fi

# Remember status and be quiet
	rc_status
        ;;
    restart)
	## Stop the service and regardless of whether it was
	## running or not, start it again.
	$0 stop
	$0 start

# Remember status and be quiet
	rc_status
	;;
    reload|force-reload)
	echo -n "Reload service Nagios NRPE "
	/sbin/killproc -HUP $NRPE_BIN

# Remember status and be verbose
	rc_status -v
        ;;
    status)
  	echo -n "Checking for service Nagios NRPE "
	## Check status with checkproc(8), if process is running
	## checkproc will return with exit status 0.

# Status has a slightly different for the status command:
	# 0 - service running
	# 1 - service dead, but /var/run/  pid  file exists
	# 2 - service dead, but /var/lock/ lock file exists
	# 3 - service not running
	/sbin/checkproc $NRPE_BIN

# Remember status and be verbose
	rc_status -v
	;;
    *)
	echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload}"
	exit 1
esac
rc_exit

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File nrpe.init of Package nagios-nrpe

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