[shell script] use menu commands to build scripts for creating folders in the cluster

background

There is a need , You need to create the same directory on each host in the cluster , For example, to add a directory x, Then all hosts in the cluster need to create this x Catalog , And change the execution permission of the directory .

Realization

For ease of operation , Prepare to use menu commands to build options , The script selects the corresponding operation according to the options .

2.1 The configuration file

services_conf The configuration is as follows ：

test1/logs;test1/project-logs;test1/agent/logs
test2/logs;test2/project-logs;test2/agent/logs
test3/logs;test3/project-logs;test3/agent/logs
test4/logs;test4/project-logs;test4/agent/logs

2.2 Script

#!/bin/bash

#  Determine if the configuration file exists 
function file_exist() {
    
  conf_filename=$1
  [ ! -f $conf_filename ] && {
    
   echo "there is no conf file named $conf_filename"
   exit 1
  }
}

#  Execute commands in the cluster 
function create_dir() {
    
  echo "ansible  The order to be executed is  $1"
  ansible all -m shell -a "$1"
}

function main_op() {
    
  services_conf=$1
  services_name=`cat $services_conf | grep -v "^#"`
  oldIFS=$IFS
  IFS=$'\n'
  
  for service in $services_name
  do
   echo "service:$service  Start to deal with ........."
   IFS=$";"
   for sub_item in $service
   do
     # If the folder does not exist, create 
     if [ ! -d /home/work/chao/$sub_item ];then
       create_dir "mkdir -p /home/work/chao/$sub_item && chmod -R 777 /home/work/chao/$sub_item"
     else
       echo "$sub_item Already exists ..............."
     fi
   done
   echo "$service Finished processing ..................."
   echo
  done
  IFS=$oldIFS
}

########## The script starts to execute 
echo "Now ,the shell will be executed named $0.............."
PS3="Enter option"

flag=1
while [ $flag -eq 1 ]
do
 echo "Please input a number: 1.  Create directory ; 2. sign out "
 select option in " Create directory " " sign out "
 do
   case $option in
     " sign out ")
        flag=0
        break
        ;;
     " Create directory ")
        echo -e "\033[31m  Start creating directory ................\033[0m"
        file_exist services_conf
        main_op services_conf
        echo
        echo -e "\033[31m  Finish creating directory ................\033[0m"
        ;;
      *)
      clear
      echo " I'm sorry , Wrong option entered !"
      echo "Please input a number: 1.  Create directory ; 2. sign out "
      ;;
    esac
 #select
 done
#while
done