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File rcnagios of Package nagios33 (Revision 2)
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#! /bin/sh # Copyright (c) 1995-2001 SuSE GmbH Nuernberg, Germany. # 2002 SuSE Linux AG Nuernberg, Germany. # 2007 SuSE Linux GmbH Nuernberg, Germany. # # Author: Wolfgang Rosenauer, Lars Vogdt # # # /etc/init.d/nagios # # and symbolic its link # # /usr/sbin/rcnagios # # System startup script for nagios # ### BEGIN INIT INFO # Provides: nagios # Required-Start: $local_fs $remote_fs $syslog $network # Required-Stop: $local_fs $remote_fs $syslog $network # Should-Start: $time sendmail httpd2 xntpd $named cron ndo2db # Should-Stop: sendmail ndo2db # Default-Start: 3 5 # Default-Stop: 0 1 2 6 # Short-Description: Network monitor Nagios # Description: Starts and stops the Nagios monitor # used to provide network services status for hosts, # services and networks. ### END INIT INFO . /etc/rc.status NAGIOS_BIN=/usr/sbin/nagios NAGIOS_CFG=/etc/nagios/nagios.cfg NAGIOS_SYSCONFIG=/etc/sysconfig/nagios NAGIOS_CFG_ERR_LOG=/var/log/nagios/config.err # Read config and log errors in logfile function config_check () { $NAGIOS_BIN -v $NAGIOS_CFG > /dev/null 2>&1 if [ $? -eq 0 ]; then return 0 else $NAGIOS_BIN -v $NAGIOS_CFG > $NAGIOS_CFG_ERR_LOG 2>&1 return 1 fi } # grab a config option function get_var() { if [ -n "$2" ]; then set -- `grep ^$1 $2 | sed 's@=@ @' | tr -d '[:cntrl:]'` else set -- `grep ^$1 $NAGIOS_CFG | sed 's@=@ @' | tr -d '[:cntrl:]'` fi shift # remove first ARG => search-string echo $* } # check some default files and directories function check_files() { # set default access rights for files and directories for file in $check_result_path $log_file $state_retention_file $status_file; do if [ -e $file ]; then touch $file chown $nagios_user:$nagios_cmdgrp $file fi done chmod 660 $resource_file chown $nagios_user:$nagios_cmdgrp $resource_file # remove some perhaps left over files for file in $command_file $lock_file $status_file $temp_file /var/lock/subsys/nagios; do test -f $file && rm -f $file done } # Check for missing binaries (stale symlinks should not happen) # Note: Special treatment of stop for LSB conformance test -x $NAGIOS_BIN || { echo "$NAGIOS_BIN not installed"; if [ "$1" = "stop" ]; then exit 0; else exit 5; fi; } # Check for existence of needed config file test -r $NAGIOS_CFG || { echo "$NAGIOS_CFG not existing"; if [ "$1" = "stop" ]; then exit 0; else exit 6; fi; } # Check for existence of sysconfig file and read it test -r $NAGIOS_SYSCONFIG || { echo "$NAGIOS_SYSCONFIG not existing"; if [ "$1" = "stop" ]; then exit 0; else exit 6; fi; } . $NAGIOS_SYSCONFIG # set values for sysconfig vars if [ -n "$NAGIOS_NICELEVEL" ]; then NICELEVEL="-n $NAGIOS_NICELEVEL" else NICELEVEL="-n 0" fi if [ -z "$NAGIOS_TIMEOUT" ]; then NAGIOS_TIMEOUT=10 fi # # get variables from config file # nagios_user="$(get_var nagios_user)" lock_file="$(get_var lock_file)" status_file="$(get_var status_file)" log_file="$(get_var log_file)" temp_file="$(get_var temp_file)" state_retention_file="$(get_var state_retention_file)" command_file="$(get_var command_file)" resource_file="$(get_var resource_file)" object_cache_file="$(get_var object_cache_file)" check_result_path="$(get_var check_result_path)" # # use default values if above check doesn't work # : ${nagios_user:=nagios} : ${nagios_cmdgrp:=nagcmd} : ${resource_file:=/etc/nagios/resource.cfg} # check ownership files : ${check_result_path:=/var/spool/nagios} : ${log_file:=/var/log/nagios/nagios.log} : ${state_retention_file:=/var/log/nagios/retention.dat} : ${status_file:=/var/log/nagios/status.dat} # files to remove : ${command_file:=/var/spool/nagios/nagios.cmd} : ${lock_file:=/var/run/nagios.pid} : ${object_cache_file:=/var/lib/nagios/objects.cache} : ${temp_file:=/var/log/nagios/nagios.tmp} # Reset status of this service rc_reset case "$1" in start) echo -n "Starting nagios " config_check if [ $? -eq 0 ]; then # check if nagios is already running NAGPID=$(pidof $NAGIOS_BIN) if [ -n "$NAGPID" ]; then echo "- Error: looks like nagios is still running with PID $NAGPID" echo -n "- trying to kill previous nagios process" kill -9 $NAGPID sleep 2 fi check_files startproc $NICELEVEL -p $lock_file $NAGIOS_BIN -d $NAGIOS_CFG else echo "- Error in configuration files" echo -n "- please read $NAGIOS_CFG_ERR_LOG" rc_failed fi rc_status -v ;; stop) echo -n "Shutting down nagios " # we have to wait for nagios to exit and remove its # own Lockfile, otherwise a following "start" could # happen, and then the exiting nagios will remove the # new Lockfile, allowing multiple nagios daemons # to (sooner or later) run - John Sellens if checkproc $NAGIOS_BIN ; then killproc -p $lock_file -TERM $NAGIOS_BIN sleep 1 if [ -e $lock_file ]; then echo "Warning - nagios did not exit in a timely manner. Waiting..." while [ -e $lock_file ] && [ $NAGIOS_TIMEOUT -gt 0 ] ; do sleep 1 NAGIOS_TIMEOUT=$[$NAGIOS_TIMEOUT-1] echo -n '.' [ $NAGIOS_TIMEOUT -eq 41 ] && echo done fi if checkproc $NAGIOS_BIN ; then killproc -p $lock_file -SIGKILL $NAGIOS_BIN echo -n "Warning: nagios killed" fi else echo -n "nagios not running" rc_failed 7 fi check_files rc_reset rc_status -v ;; try-restart) ## Do a restart only if the service was active before. ## Note: try-restart is now part of LSB (as of 1.9). ## RH has a similar command named condrestart. $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) $0 stop $0 start rc_status ;; reload|force-reload) echo -n "Reload service nagios " config_check if [ $? -eq 0 ]; then echo -n "Passed configuration check - reloading..." killproc -HUP -p $lock_file $NAGIOS_BIN else echo "- Error in configuration files" echo -n "- aborting reload - please read $NAGIOS_CFG_ERR_LOG" rc_failed fi rc_status -v ;; status) echo -n "Checking for nagios " checkproc -p $lock_file $NAGIOS_BIN rc_status -v ;; check|check_verbose) echo "Running configuration check..." config_check if [ $? -eq 0 ]; then echo -n "- Passed configuration check" test -f $NAGIOS_CFG_ERR_LOG && rm $NAGIOS_CFG_ERR_LOG rc_reset else echo "- Error in configuration files" if [ $1 == "check_verbose" ]; then cat $NAGIOS_CFG_ERR_LOG else echo -n "- please read $NAGIOS_CFG_ERR_LOG" fi rc_failed fi rc_status -v ;; *) echo "Usage: $0 {start|stop|status|try-restart|restart|reload|check|check_verbose}" exit 1 ;; esac rc_exit
