service-scripts/genericServiceScript at master · cyclops26/service-scripts · GitHub

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#!/bin/bash
#
# APPLICATION_NAME      This shell script takes care of starting and stopping APPLICATION_NAME
#
# chkconfig: - 80 20
#
### BEGIN INIT INFO
# Provides: APPLICATION_NAME
# Required-Start: $network
# Required-Stop: $network
# Default-Start:     3 4 5
# Default-Stop:      0 1 2 6
# Short-Description: APPLICATION_NAME daemon
# Description:       Starts the APPLICATION_NAME daemon.
### END INIT INFO
#
# Author: Eli Keimig
# Copyright: GPL 2012


# VARIABLES
USER="root"
NAME="Application_Name"
BIN="/usr/bin"
CONTAINER="${BIN}/CONTAINER" # REPLACE "CONTAINER" with something like "perl, bash, or python"
PROGRAM="Script_to_Execute"
START_ARGS="-d"
NAME="Container for ${NAME}"
LOG="/var/log/${NAME}_Service.log"
HOME="/apps/serviceDirectory"
WAIT_TIME=60

# EXECUTION

function start {
  PID=`/bin/ps -ef | grep "${PROGRAM}" | grep -v "grep" | awk '{print $2}'`
  if [ ${PID} ]
  then
    /bin/echo "${NAME} is already started"
  else
    /bin/echo "Starting ${NAME}..."
    su ${USER} -c "${CONTAINER} ${HOME}/${PROGRAM} ${START_ARGS}" >> ${LOG} 2>&1 &
    /bin/echo "${NAME} will be up shortly..."
    /bin/sleep 5
    PID_VALIDATE=`/bin/ps -ef | grep "${PROGRAM}" | grep -v "grep" | awk '{print $2}'`
    if [ ${PID_VALIDATE} ]
    then
      /bin/echo "${NAME} is now running"
    else
      /bin/echo "${NAME} failed to start - Please check ${LOG} for more information"
    fi
  fi
}

function stop {
  /bin/echo "Stopping ${NAME}..."

  PID=`/bin/ps -ef | grep "${PROGRAM}" | grep -v "grep" | awk '{print $2}'`
  if [ ${PID} ]
  then
    /bin/echo "${NAME} is stopping.."

    /bin/su ${USER} -c "/bin/kill -15 ${PID}" >> ${LOG} 2>&1 &

    MAX_TRIES=$((WAIT_TIME/5))

    while [ true ]; do
      if [ -z ${PID} ]
      then
        /bin/echo "Stopped ${NAME}"
        break;
      fi

      /bin/echo "."

      ((tries ++))
      if [ ${tries} -ge ${MAX_TRIES} ]
      then
        /bin/echo "Process not responding..."
        /bin/echo "Killing process..."
        /bin/kill -9 ${PID}
      fi

      /bin/sleep 5;
      PID=`/bin/ps -ef | grep "${PROGRAM}" | grep -v "grep" | awk '{print $2}'`
    done;

  else
    /bin/echo "${NAME} is not running"
  fi
}

function status {
        PID=`/bin/ps -ef | grep "${PROGRAM}" | grep -v "grep" | awk '{print $2}'`
        if [ ${PID} ]
        then
            /bin/echo "${NAME} is running"
        else
            /bin/echo "${NAME} is not running"
        fi
}

case $1 in
        start)
            start
            ;;
        restart)

            stop

            start

            ;;
        status)
            status
            ;;
        stop)
            stop
            ;;
esac