CentOS 7.2 WSO2ESB service script

#CentOS 7.2 / RHEL 7.2 service script

#Create a service user and let the user own the WSO2 ESB installation
sudo adduser wso2esb
sudo chown -R wso2esb:wso2esb /opt/wso2esb-5.0.0

#These instructions are working with RHEL 7.2 (or CentOS 7.2)


#Create a service file
sudo vi /opt/wso2esb-5.0.0/bin/service.sh

#!/bin/bash
# --------------------------------------------------------------
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
#
# --------------------------------------------------------------
# This service script will be executed to start the servers.
# --------------------------------------------------------------
#

USER="wso2bps"                        #eg: ubuntu
PRODUCT_CODE="BPS"                    #eg: CEP
CARBON_HOME="/opt/wso2bps-3.6.0"      #eg: /mnt/10.0.0.1/wso2esb-4.9.0
LOCK_FILE="${CARBON_HOME}/wso2carbon.lck"
PID_FILE="${CARBON_HOME}/wso2carbon.pid"
CMD="${CARBON_HOME}/bin/wso2server.sh"     #eg: ${CARBON_HOME}/bin/wso2server.sh
JAVA_HOME="{{bps_java_path}}"          #eg: /usr/java/default

export JAVA_HOME=$JAVA_HOME

# Status the service
status() {
 if [ -f $PID_FILE ]
     then
  PID=`cat $PID_FILE`
  ps -fp $PID > /dev/null 2>&1
  PIDVAL=$?
     else
  PIDVAL=3
 fi

 if [ $PIDVAL -eq 0 ]
     then
  echo "WSO2 $PRODUCT_CODE server is running ..."
     else
  echo "WSO2 $PRODUCT_CODE server is stopped."
 fi
 return $PIDVAL
}

# Start the service
start() {
 if [ -f $PID_FILE ]
     then
  PID=`cat $PID_FILE`
  ps -fp $PID > /dev/null 2>&1
  PIDVAL=$?
     else
  PIDVAL=3
 fi

 if [ $PIDVAL -eq 0 ]
     then
        echo "WSO2 $PRODUCT_CODE server is running ..."
     else
        echo -n "Starting WSO2 $PRODUCT_CODE server: "
        touch $LOCK_FILE
        su $USER -c "$CMD -Dsetup start > /dev/null 2>&1 &"
        sleep 5
        if [ -f $PID_FILE ]
     then
   PID=`cat $PID_FILE`
   ps -fp $PID > /dev/null 2>&1
   PIDVAL=$?
   if [ $PIDVAL -eq 0 ]
       then
    echo "success"
       else
    echo "failure"
   fi
     else
   echo "failure"
   PIDVAL=2
        fi
 fi
 echo
 return $PIDVAL
}

# Restart the service
restart() {
 echo -n "Restarting WSO2 $PRODUCT_CODE server: "
 touch $LOCK_FILE
 su $USER -c "$CMD restart > /dev/null 2>&1 &"
 sleep 15
 if [ -f $PID_FILE ]
     then
  PID=`cat $PID_FILE`
  ps -fp $PID > /dev/null 2>&1
  PIDVAL=$?
  if [ $PIDVAL -eq 0 ]
      then
   echo "success"
      else
   echo "failure"
  fi
     else
  echo "failure"
  PIDVAL=2
 fi
 echo
 return $PIDVAL
}

# Stop the service
stop() {
 if [ -f $PID_FILE ]
     then
  PID=`cat $PID_FILE`
  ps -fp $PID > /dev/null 2>&1
  PIDVAL=$?
  if [ $PIDVAL -eq 0 ]
      then
   echo -n "Stopping WSO2 $PRODUCT_CODE server: "
   su $USER -c "$CMD stop > /dev/null 2>&1 &"
   rm -f $LOCK_FILE
   sleep 10
   PID=`cat $PID_FILE`
   ps -fp $PID > /dev/null 2>&1
   PIDVAL=$?
   if [ $PIDVAL -eq 0 ]
       then
    echo "failure"
    PIDVAL=2
       else
    echo "success"
    PIDVAL=0
   fi
      else
         echo "WSO2 $PRODUCT_CODE server is not running."
         PIDVAL=0
  fi
     else
        echo "WSO2 $PRODUCT_CODE server is not running."
        PIDVAL=0
 fi
 echo
 return $PIDVAL
}


### main logic ###
case "$1" in
start)
    start
    ;;
stop)
    stop
    ;;
status)
    status
    ;;
restart|reload|condrestart)
    restart
    ;;
*)
   echo $"Usage: $0 {start|stop|restart|reload|status}"
   exit 1
esac
exit $?




##### END OF THE SERVICE FILE #####


sudo chmod 755 /opt/wso2esb-5.0.0/bin/service.sh

sudo vi /usr/lib/systemd/system/wso2esb.service

[Unit]
Description=WSO2 ESB Service
After=network.target

[Service]
ExecStart=/opt/wso2esb-5.0.0/bin/service.sh start
ExecStop=/opt/wso2esb-5.0.0/bin/service.sh stop
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target

cd /etc/systemd/system/multi-user.target.wants
ln –s / usr/lib/systemd/system/wso2esb.service

#Enable the service
 #bug workaround
sudo systemctl daemon-reexec
sudo systemctl enable wso2esb.service

#List services:
systemctl --type=service

#Start service
sudo systemctl start wso2esb.service



##########

# simple service  for any app

etc/systemd/system/myserver.service



[Unit]
Description=Custom Server
After=network.target

[Service]
Type=simple
User=the_username
ExecStart=/srv/...../bin/service.sh
Restart=on-abort


[Install]
WantedBy=multi-user.target


systemctl daemon-reload
systemctl enable myserver.service