logstash-forwarder.init

#!/bin/sh
#
#   /etc/init.d/logstash-forwarder
#
#   Starts and stops logstash-forwader as a "daemon".
#
# chkconfig: 2345 30 70
# description: Starts and stops logstash-forwarder as a daemon.

# The name of this service
NAME=logstash-forwarder

### Start Configuration Options ###

# The JSON config to use
LSF_CONFIG=/etc/logstash-forwarder.conf

# The logstash-forwarder binary
LSF_BIN=/opt/logstash-forwarder/bin/logstash-forwarder

# Any logstash-forwarder options
LSF_OPTS="-spool-size 1000"

# The log file for local info
LSF_LOG=/var/log/logstash-forwarder

# The PID file
PID_FILE=/var/run/logstash-forwarder.pid

# The command to daemonize
DAEMON="nohup ${LSF_BIN} -config ${LSF_CONFIG} ${LSF_OPTS} >>${LSF_LOG} 2>&1 &"

### End Configuration Options ###

. /etc/init.d/functions

check_prereqs() {
  if [ ! -f ${LSF_CONFIG} ]; then
    echo "ERROR: LSF_CONFIG (${LSF_CONFIG}) doesn't exist."
    exit 1
  elif [ ! -d `dirname ${LSF_LOG}` ]; then
    echo "ERROR: LSF_LOG parent directory (`dirname ${LSF_LOG}`) doesn't exist."
    exit 1
  fi
}

start() {
  check_prereqs

  echo -n $"Starting $NAME: "

  daemon --check $NAME --pidfile $PID_FILE $DAEMON

  RETVAL=$?

  if [ $RETVAL -ne 0 ]; then
    echo_failure
    echo
  else
    PID=$(ps aux | grep -m 1 "$LSF_BIN" | awk '{print $2}')
    echo -n $PID > $PID_FILE
    echo_success
    echo
  fi
  return $RETVAL
}

stop () {
  echo -n $"Stopping $NAME: "
  killproc -p $PID_FILE $NAME
  RETVAL=$?
  echo
  return $RETVAL
}

restart () {
  stop
  start
}

case "$1" in
  start)
    start
    ;;
  stop)
    stop
    ;;
  status)
    status -p $PID_FILE $NAME
    ;;
  restart)
    restart
    ;;
  *)
    echo "Usage: $0 {start|stop|status}"
    exit 2
    ;;
esac

exit $?