Linux服务创建及jq配置服务列表查看

1.应用背景

随着业务需求，后台处理服务不断增多，对于这些服务或后台程序的查看、更新操作越来越凌乱，所以我们首先需要一个服务列表查看工具，方便查看各

服务的端口、运行状态、jar包路径等等。

2.创建服务方式

2.1创建service,通过简单命令start、stop、restart、status管理

demo:

创建服务文件：ihr-resumemessdeal 并copy至:/etc/rc.d/init.d

 1 #!/bin/sh

 2 #chkconfig:2345 80 05

 3 #description:ihr-resumemessdeal.jar

 4 description_txt="*******服务"

 5 path_txt="/service_resumemessdeal_jar/ihr-resumemessdeal.jar"

6 app_command="nohup java -jar /usr/local/ihr-services/service_resumemessdeal_jar/ihr-resumemessdeal.jar > /dev/null 2>&1 &"

 7 app_pidname="ihr-resumemessdeal.jar"

 8 pidlist=""

 9 checkpid(){

10    pidlist=`ps -ef|grep $app_pidname|grep -v "grep"|awk '{print $2}'`

11 }

12 start(){

13   echo "$app_pidname 服务准备启动"

14   checkpid

15   if [ "$pidlist" = "" ]

16      then

17        su - root -c "$app_command"

18        checkpid

19        if [ "$pidlist" = "" ]

20          then

21            echo "$app_pidname 服务启动失败"

22          else

23            echo "$app_pidname 服务启动成功"

24        fi

25      else

26        echo "$app_pidname 已存在并运行中"

27   fi

28 }

29 stop(){

30    checkpid

31    if [ "$pidlist" = "" ]

32       then

33        echo "$app_pidname 服务不存在,或已停止运行"

34       else

35         kill -9 $pidlist

36         checkpid

37         if [ "$pidlist" = "" ]

38            then

39              echo "$app_pidname 服务停止成功"

40            else

41              echo "$app_pidname 服务停止失败，请重新操作"

42         fi

43    fi

44 }

45 restart(){

46    stop

47    start

48 }

49 status(){

50    checkpid

51    if [ "$pidlist" = "" ]

52       then

53          echo "已停止"

54       else

55         echo "运行中"

56    fi

57 }

58 description(){

59    echo "$description_txt"

60 }

61 path(){

62   echo "$path_txt"

63 }

64 pidnum(){

65     checkpid

66   if [ "$pidlist" = "" ]

67       then

68        echo "无"

69       else

70        echo "$pidlist"

71    fi

72 }

73

74 case $1 in

75 start)

76     start;;

77 stop)

78     stop;;

79 restart)

80     restart;;

81 status)

82     status;;

83 description)

84     description;;

85 path)

86     path;;

87 pidnum)

88     pidnum;;

89 *);;

90 esac

运行：

chmod u+x ihr-resumemessdeal

chkconfig --add ihr-resumemessdeal

service ihr-resumemessdeal start

测试命令：

2.2直接运行为linux后台程序：（大部分运维都这样做）

demo:

nohup java -jar /usr/local/ihr-services/service_resumemessdeal_jar/ihr-resumemessdeal.jar > /dev/null 2>&1 &

3.服务列表管理

3.1针对2.1创建服务列表脚本

uthor:zefeng.guo

servicelist=`chkconfig --list |grep '^ihr-' |awk '{print $1}'`printf "\033[33m%-26s %-9s %-10s  %-30s %-20s\033[0m\n" 服务名  状态  进程ID 描述  服务路径for sl in $servicelist

  do

   sta=`service $sl status`

   des=`service $sl description`

   pat=`service $sl path`

   pidn=`service $sl pidnum`

   if [ "$sta" = "空命令" ]

     then

       printf "\033[44m%-23s %-10s %-10s %-30s %-20s\033[0m\n" $sl $sta $pidn $des $pat

     elif [ "$pidn" = "无" ]

     then

      printf "\033[45m%-23s %-10s %-10s %-30s %-20s\033[0m\n" $sl $sta $pidn $des $pat

     else

       printf "\033[32m%-23s %-10s %-10s %-30s %-20s\033[0m\n" $sl ${sta} $pidn $des $pat

   fi

 done

运行如下：

3.2针对2.2 创建服务列表脚本

对于运行于后台得jar包程序查看，我们可以通过jq（linux读取json配置文件）配置获取程序基本信息：

3.2.1 创建服务配置test.json

 1 [

 2     {

 3         "index": 0,

 4         "name": "ihr-rtfeedbackdeal.jar",

 5         "desc": "简历转发",

 6         "dir": "/service_rtfeedbackdeal_jar/ihr-rtfeedbackdeal.jar"

 7     },

 8     {

 9         "index": 1,

10         "name": "ihr-resu3333333333.jar",

11         "desc": "简历填写",

12         "dir": "service_resum3333_jar/ihr-resumem33333.jar"

13     },

14     {

15         "index": 2,

16         "name": "ihr-resumemessdeal.jar",

17         "desc": "简历反馈",

18         "dir": "service_resumemessdeal_jar/ihr-resumemessdeal.jar"

19     },

20     {

21         "index": 3,

22         "name": "ihr-aaaaaaaaaa.jar",

23         "desc": "简历修改",

24         "dir": "service_resumeme11111_jar/ihr-resu111111111.jar"

25     },

26     {

27         "index": 4,

28         "name": "ihr-aaaarrrr.jar",

29         "desc": "简历回收",

30         "dir": "service_resumeme11111_jar/ihr-resu13333.jar"

31     }

32 ]

3.2.1 读取配置文件并检索程序运行状态：

cd /home/gzf/tools/jq

jqpath="/jq"

testpath="/home/gzf/tools/jq/test.json"

servicenames=`cat $testpath | .$jqpath .[] | .$jqpath .index`printf "\033[33m%-26s %-9s %-10s  %-30s %-20s\033[0m\n" 服务名  状态  进程ID 描述  服务路径

sl="ihr-"for sc in $servicenames

  do

     sl=`cat $testpath | .$jqpath .[$sc] | .$jqpath .name`

     sl=${sl//\"/}

     pidn=`ps -ef | grep $sl | grep -v "grep"| awk '{print $2}'`

     des=`cat $testpath | .$jqpath .[$sc] | .$jqpath .desc`

     pat=`cat $testpath | .$jqpath .[$sc] | .$jqpath .dir`

          sta="运行"     

      if [ "$pidn" = "空命令" ]

     then

       printf "\033[44m%-23s %-10s %-10s %-30s %-20s\033[0m\n" $sl $sta $pidn $des $pat

     elif [ "$pidn" = "" ]

     then

      sta="停止"

      pidn="无"

      printf "\033[45m%-23s %-10s %-10s %-30s %-20s\033[0m\n" $sl $sta $pidn $des $pat

     else

       printf "\033[32m%-23s %-10s %-10s %-30s %-20s\033[0m\n" $sl ${sta} $pidn $des $pat

   fi

 done

运行如下：

3.备注：

知识点：

3.1 nohup命令的用法

3.2 linux服务的创建

3.3 jq（linux读取json配置）的用法

3.4 printf命令的用法