packages/pnp4nagios/skel/etc/init.d/npcd

   1 #!/bin/sh
   2 #
   3 ### BEGIN INIT INFO
   4 # Provides:          npcd
   5 # Required-Start:
   6 # Required-Stop:
   7 # Default-Start:     2 3 4 5
   8 # Default-Stop:      0 1 6
   9 # Short-Description: pnp4nagios NPCD Daemon Version 0.6.5
  10 # Description:          Nagios Performance Data C Daemon
  11 ### END INIT INFO
  12
  13 # chkconfig: 345 99 01
  14 #
  15 # File : npcd
  16 #
  17
  18 cd ###ROOT###
  19 . lib/omd/init_profile
  20 . etc/omd/site.conf
  21
  22 servicename=npcd
  23 prefix=###ROOT###
  24 exec_prefix=###ROOT###
  25 NpcdBin=###ROOT###/bin/npcd
  26 NpcdCfgFile=###ROOT###/etc/pnp4nagios/npcd.cfg
  27 NpcdVarDir=###ROOT###/var/pnp4nagios
  28 NpcdRunFile=###ROOT###/tmp/pnp4nagios/run/npcd.pid
  29 NpcdLockDir=###ROOT###/tmp/pnp4nagios/lock
  30 NpcdLockFile=npcd
  31 NpcdUser=###SITE###
  32 NpcdGroup=###SITE###
  33
  34 status_npcd (){
  35     pid_npcd
  36     if ps -p $NpcdPID > /dev/null 2>&1; then
  37         return 0
  38     else
  39         if test -f $NpcdLockDir/$NpcdLockFile; then
  40             return 2
  41         else
  42             return 1
  43         fi
  44     fi
  45     return 1
  46 }
  47
  48 printstatus_npcd(){
  49     if status_npcd $1 $2; then
  50         echo "$servicename (pid $NpcdPID) is running..."
  51         exit 0
  52     elif test $? = 2; then
  53         echo "$servicename is not running but subsystem locked"
  54         exit 2
  55     else
  56         echo "$servicename is not running"
  57         exit 1
  58     fi
  59 }
  60
  61
  62 killproc_npcd (){
  63     kill $2 $NpcdPID
  64 }
  65
  66
  67 pid_npcd (){
  68     if [ -f "$NpcdRunFile" ]; then
  69         # Handle stale pidfiles
  70         TMPPID=`head -n 1 $NpcdRunFile`
  71         if ps -p $TMPPID >/dev/null 2>&1; then
  72             NpcdPID=$TMPPID
  73             return 0
  74         fi
  75     fi
  76
  77     # It might happen that there is no pidfile or a stale pidfile but
  78     # a process is running. As fallback check the process table for the
  79     # oldest process executed by the site user
  80     PID=$(pgrep -u $OMD_SITE -o -f $NpcdBin)
  81     if [ -n "$PID" ]; then
  82         NpcdPID=$PID
  83         return 0
  84     fi
  85     return 1
  86 }
  87
  88
  89 # Source function library
  90 # Solaris doesn't have an rc.d directory, so do a test first
  91 if [ -f /etc/rc.d/init.d/functions ]; then
  92     . /etc/rc.d/init.d/functions
  93 elif [ -f /etc/init.d/functions ]; then
  94     . /etc/init.d/functions
  95 fi
  96 #### OMD ###
  97 # Start only if PNP is enabled
  98 . ###ROOT###/etc/omd/site.conf
  99 if ( [ "$CONFIG_PNP4NAGIOS" != on ] && [ "$CONFIG_PNP4NAGIOS" != npcd ] ) ; then
 100     exit 5
 101 fi
 102
 103 # Check that npcd exists.
 104 if [ ! -f $NpcdBin ]; then
 105     echo "Executable file $NpcdBin not found.  Exiting."
 106     exit 1
 107 fi
 108
 109 # Check that npcd.cfg exists.
 110 if [ ! -f $NpcdCfgFile ]; then
 111     echo "Configuration file $NpcdCfgFile not found.  Exiting."
 112     exit 1
 113 fi
 114
 115 # See how we were called.
 116 __init_hook $0 $1 pre
 117 case "$1" in
 118     start)
 119         status_npcd
 120         if [ $? -eq 0 ]; then
 121             echo "$servicename already started..."
 122             exit 1
 123         fi
 124         echo -n "Starting $servicename..."
 125         touch $NpcdRunFile
 126         chown $NpcdUser:$NpcdGroup $NpcdRunFile
 127         $NpcdBin -d -f $NpcdCfgFile
 128         if [ -d $NpcdLockDir ]; then touch $NpcdLockDir/$NpcdLockFile; fi
 129         echo "OK"
 130         __init_hook $0 $1 post
 131         exit 0
 132         ;;
 133
 134     stop)
 135         status_npcd
 136         if ! [ $? -eq 0 ]; then
 137             echo "$servicename was not running... could not stop"
 138             exit 0
 139         fi
 140         echo -n "Stopping $servicename..."
 141
 142         pid_npcd
 143         killproc_npcd npcd
 144
 145         # now we have to wait for npcd to exit and remove its
 146         # own NpcdRunFile, otherwise a following "start" could
 147         # happen, and then the exiting npcd will remove the
 148         # new NpcdRunFile, allowing multiple npcd daemons
 149         # to (sooner or later) run - John Sellens
 150         # echo -n 'Waiting for npcd to exit .'
 151         for i in 1 2 3 4 5 6 7 8 9 10 ; do
 152              if status_npcd > /dev/null; then
 153              echo -n '.'
 154              sleep 1
 155              else
 156              break
 157              fi
 158         done
 159         if status_npcd > /dev/null; then
 160              echo ''
 161              echo 'Warning - $servicename did not exit in a timely manner'
 162         else
 163              echo 'OK'
 164         fi
 165         rm -f $NpcdLockDir/$NpcdLockFile
 166         __init_hook $0 $1 post
 167         exit 0
 168         ;;
 169
 170     status)
 171         printstatus_npcd
 172         ;;
 173
 174     restart|reload)
 175         $0 stop
 176         $0 start
 177         ;;
 178
 179     *)
 180         echo "Usage: $servicename {start|stop|restart|reload|status}"
 181         exit 1
 182         ;;
 183
 184 esac
 185
 186 # End of this script