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scripts – 如何在係統重新啟動時自動重新啟動 Tomcat7?

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問題描述

我已經在 Ubuntu 12.04 LTS 上安裝了 Tomcat 7,它在 Amzon EC2 實例上運行。現在我希望 tomcat 應該在係統重啟時自動重啟。

我讀了 this blog ,它建議將以下腳本添加到 /etc/init.d/tomcat7

# Tomcat auto-start
#
# description: Auto-starts tomcat
# processname: tomcat
# pidfile: /var/run/tomcat.pid

case $1 in
start)
sh /usr/share/tomcat7/bin/startup.sh
;;
stop) 
sh /usr/share/tomcat7/bin/shutdown.sh
;;
restart)
sh /usr/share/tomcat7/bin/shutdown.sh
sh /usr/share/tomcat7/bin/startup.sh
;;
esac 
exit 0

並發出以下命令:

sudo chmod 755 /etc/init.d/tomcat7

sudo ln -s /etc/init.d/tomcat7 /etc/rc1.d/K99tomcat

sudo ln -s /etc/init.d/tomcat7 /etc/rc2.d/S99tomcat

sudo /etc/init.d/tomcat7 restart

我的問題

  1. tomcat7 已經有腳本了,我們要把建議的腳本粘貼到哪裏呢?

  2. 建議的程序是否正確?

最佳回答

在 /etc/init.d/tomcat7 中創建 init 腳本,內容如下(您的腳本也應該可以工作,但我認為這個更符合標準)。

這樣 Tomcat 隻會在配置網絡接口後啟動。

初始化腳本內容:

#!/bin/bash

### BEGIN INIT INFO
# Provides:        tomcat7
# Required-Start:  $network
# Required-Stop:   $network
# Default-Start:   2 3 4 5
# Default-Stop:    0 1 6
# Short-Description: Start/Stop Tomcat server
### END INIT INFO

PATH=/sbin:/bin:/usr/sbin:/usr/bin

start() {
 sh /usr/share/tomcat7/bin/startup.sh
}

stop() {
 sh /usr/share/tomcat7/bin/shutdown.sh
}

case $1 in
  start|stop) $1;;
  restart) stop; start;;
  *) echo "Run as $0 <start|stop|restart>"; exit 1;;
esac

更改其權限並自動添加正確的符號鏈接:

chmod 755 /etc/init.d/tomcat7
update-rc.d tomcat7 defaults

從現在開始,它會在進入適當的運行級別後自動啟動和關閉。你也可以用 service tomcat7 <stop|start|restart> 來控製它

次佳回答

#!/bin/bash
#
# Author : subz
# Copyright (c) 2k15
#
# Make kill the tomcat process
#
TOMCAT_HOME=/media/subin/works/Applications/apache-tomcat-7.0.57
SHUTDOWN_WAIT=5

tomcat_pid() {
  echo `ps aux | grep org.apache.catalina.startup.Bootstrap | grep -v grep | awk '{ print $2 }'`
}

start() {
  pid=$(tomcat_pid)
  if [ -n "$pid" ] 
  then
    echo "Tomcat is already running (pid: $pid)"
  else
    # Start tomcat
    echo "Starting tomcat"
    /bin/sh $TOMCAT_HOME/bin/startup.sh
  fi


  return 0
}

stop() {
  pid=$(tomcat_pid)
  if [ -n "$pid" ]
  then
    echo "Stoping Tomcat"
    /bin/sh $TOMCAT_HOME/bin/shutdown.sh

    let kwait=$SHUTDOWN_WAIT
    count=0;
    until [ `ps -p $pid | grep -c $pid` = '0' ] || [ $count -gt $kwait ]
    do
      echo -n -e "\nwaiting for processes to exit";
      sleep 1
      let count=$count+1;
    done

    if [ $count -gt $kwait ]; then
      echo -n -e "\nkilling processes which didn't stop after $SHUTDOWN_WAIT seconds"
      kill -9 $pid
      echo  " \nprocess killed manually"
    fi
  else
    echo "Tomcat is not running"
  fi

  return 0
}
pid=$(tomcat_pid)

 if [ -n "$pid" ]
  then
    echo "Tomcat is running with pid: $pid"
    stop
  else
    echo "Tomcat is not running"
    start
  fi
exit 0

第三種回答

不能將此添加到 /etc/rc.local

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

sleep 10
/usr/share/tomcat7/bin/startup.sh

參考資料

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