tomcat 多实例的Sys V风格脚本

-------------------------------------------------[翠花，上脚本]-------------------------------------------------------------------------------

#!/bin/sh
#
# function: Tomcat mutil instance init script for Linux.
# author: 
#          QQ:765482322 
#          mail: login_532_gajun@sina.com
# notice: 
#        1.如果tomcat实例是在同一个目录下，那么只需要修改此脚本中 "export CATALINA_BASE=(path)/$instance_name" 
#          中的path为你所有实例的父目录即可,--instance= 选项就可以使用相对路径
#       2.如果tomcat实例不在同一个目录下，那么只需要修改此脚本中 "export CATALINA_BASE=$instance_name"
#          --instance= 选项后面就得跟实例的绝对路径
#       3.把此脚本放到/usr/local/bin/ 并重名命为tomcat-multi,注意修改其他用户有执行权限 

# 定义java的相关变量
export JAVA_HOME=/usr/java/latest

# define function
# 脚本命令使用语法检测
syntax_check(){
    if [ $arg_count -ne 2 ];then
        help_info
        exit 1
    fi
    option && action || (help_info;exit 1)    
}

# 打印脚本使用帮助信息
help_info(){
cat|grep --color ".*" << EOF
Usage: tomcat-multil <OPTION>... <action>
    
  OPTION:
     --instance=NAME       Add an instance Name must be an instance of the home directory
    
  action:
     start                 Run an instance
     stop                  Stop an instance
     restart               Restart an instance
     configtest            Check configure file 
     status                Show an instance status                   
     print_log             Print tomcat instance run log        
EOF
}

# 根据给定的参数判断用户对tomcat实例所要执行的动作
action(){
run_action=("start" "stop" "restart" "configtest" "status" "print_log")
local i=1
while [ $i -le 2 ];do
        for j in ${run_action[*]};do
            if [ ${arg[$i-1]} == $j ];then
                hit_action=$j;break
            else
                continue
            fi
        done
        if [ -n "$hit_action" ];then
        #echo "hit_action=$hit_action"
            break
        else
            let i++
        fi
done
if [ -z "$hit_action" ];then
    help_info
    exit 1
fi

}

# 通过选项--instance 得到tomcat实例所在路径
option() {
    local i=1
    while [ $i -le 2 ];do
        if echo ${arg[$i-1]} | egrep -i "(^--instance=)" &> /dev/null;then
            instance_name=$(echo ${arg[$i-1]} | sed -r 's/--instance=(.*)/1/')
            break
        else
            let i++
        fi
    done
    if [ -z "$instance_name" ];then
        help_info        
        exit 1
    fi
}

# 启动tomcat实例
start(){
    $CATALINA_HOME/bin/startup.sh &> /dev/null
    sleep 2
    if ps -ef | grep "java" | grep -w "$CATALINA_HOME" &> /dev/null ;then
        echo -e "Starting tomcat instance $instance_name:                    33[32m[  OK  ]33[0m"
    #   echo $tomcat_getpid | bash > $pidfile
    else
        echo -e "Starting tomcat instance $instance_name:                    33[31m[FAILED]33[0m"
    exit 1
    fi
}

# 停止tomcat实例，注意有时使用catalina.sh 执行 stop不成功，所以加了层判断，如果使用catalina.sh 关闭不了进程，就使用kill杀死进程
stop(){
    $CATALINA_HOME/bin/shutdown.sh &> /dev/null 
    sleep 2
    if ps -ef | grep "java" | grep -w "$CATALINA_HOME" &> /dev/null;then
        ps -ef | grep "java" | grep -w "$CATALINA_HOME" | awk '{print $2}' | xargs kill -9 &> /dev/null 
            if [ $? -eq 0 ];then
                echo -e "Stopping tomcat instance $instance_name:                    33[32m[  OK  ]33[0m"
            else
                echo -e "Stopping tomcat instance $instance_name:                    33[31m[FAILED]33[0m"
                exit 2
            fi
    else
        echo -e "Stopping tomcat instance $instance_name:                    33[32m[  OK  ]33[0m"
    fi
}

# 重启tomcat实例
restart(){
    $CATALINA_HOME/bin/configtest.sh &> /dev/null
    if [ $? -eq 0 ];then
        if ps -ef | grep "java" | grep -w "$CATALINA_HOME" &> /dev/null ;then
            stop
        else
            echo -e "Stopping tomcat instance $instance_name:                    33[31m[FAILED]33[0m"
        fi 
         
        start
    else
        exit 2
    fi
}

# 查看tomcat实例状态
status(){
    if ps -ef | grep "java" | grep -w "$CATALINA_HOME" &> /dev/null;then
        ps -ef | grep "java" | grep -w "$CATALINA_HOME" | awk '{print $2}' | while read java_pid;do
            echo -e "33[32mOK: tomcat instance $instance_name is running ($java_pid)33[0m"
        done
        return 0
    else
        echo -e "33[31mWarning: tomcat instance $instance_name is not running33[0m"
        return 2
    fi
}
        
# tomcat实例配置文件测试
configtest(){
   $CATALINA_HOME/bin/configtest.sh
}

# 打印tomcat启动日志
print_log(){
    local exit_code
    whiptail --title "Print Yes/No Log" --yesno "Choose between Yes and No." 10 60
    exit_code=`echo $?`
    if [ $exit_code -eq 0 ];then
        echo -e "33[32m====================[$instance_name Log]=======================================33[0m"
        tailf $CATALINA_HOME/logs/catalina.out 
    else
        return 1
    fi
}

# main 
# 根据函数syntax确定tomcat实例的家目录 
arg_count=$#
arg=("$1" "$2")
syntax_check 
#export CATALINA_HOME=/usr/local/tomcat/instance/$instance_name
export CATALINA_HOME=/opt/tomc_instance/$instance_name

#  
case $hit_action in 
start)
    if ps -ef | grep "java" | grep -w "$CATALINA_HOME" &> /dev/null ;then
        echo -e "33[32mNotice: Service tomcat instance $instance_name is running ...33[0m"
        exit 1
    else
        start
    sleep 0.3
    print_log    
    fi
    ;;

stop)
    if ps -ef | grep "java" | grep -w "$CATALINA_HOME" &> /dev/null ;then
        stop
    sleep 0.3
    print_log
    else
        echo -e "33[31mWarning: Service tomcat instance $instance_name is stopped33[0m"
    fi 
    ;;

restart)
    restart
    sleep 0.3
    print_log
    ;;

status)
    status
    ;;

configtest)
    configtest
    ;;

print_log)
    print_log
    ;;

*)
    help_info
esac

实例操作：

　1.查看一个实例的状态

  2.查看帮助信息，没有使用-h选项，不过你可以故意给错选项来查看 ，提供了比较简单地几个选项。

   3.多实例操作，需要以下的脚本，你可以把它保存并重名命为tomcatd，然后把它扔到/etc/init.d/tomcatd ,确保其有执行权限。

#!/bin/bash
#
# chkconfig: 2345 99 21
# description: tomcat multi instance init scripts

# 通过instance数组把你要启动的tomcat实例写在这里
instance=("tomcat8001" "tomcat8002")

# 该服务需要用到的执行程序
prog=/usr/local/bin/tomcat-multi

# 通过for循环遍历数组内的实例名称启动多个实例
case $1 in
start)
    for i in ${instance[*]};do $prog  --instance=$i start;done
    ;;

stop)
    for i in ${instance[*]};do $prog  --instance=$i stop;done
    ;;

restart)
    for i in ${instance[*]};do $prog  --instance=$i restart;done
    ;;

configtest)
    for i in ${instance[*]};do $prog  --instance=$i configtest;done
    ;;

status)
    for i in ${instance[*]};do $prog  --instance=$i status;done
    ;;
                                                                       

  4. 启动并打印日志

　

总结：

     @解决tomcat多实例在部署应用程序后每个手动重启。

     @通过status 选项查看tomcat实例在线情况

     @实现tomcat多实例集中管理，当然通过tomcat-multi 可以实现单实例管理

     @脚本有不合适地方，还请大家给予指出，这里只是给大家一个模板