Script buat check service-service yang non aktif, kirim notif via email dan telegram

lib.inc

#!/bin/bash
#Description: File library berisikan variabel-variabel dan function-function
#Author: Yusuf Ayuba

#user yang bisa menjalankan script ini
USER_ALLOW="root"

#inisial variabel-variabel (Silahkan sesuaikan isian email pengirim dan email tujuan) 
FROM="email pengirim"
EMAIL="email tujuan"
FILE_MAIL="mail.txt"

#list service yang akan dicek (tambahkan service-service lain yang ingin dicek)
SERVICES=('httpd' 'mysql' 'mongod' 'clamd')

#inisialisasi variabel bot telegram (silahkan diisi token telegram dan id telegram)
TOKEN="token telegram"
CHAT_ID="id telegram"
ENDPOINT="https://api.telegram.org/bot$TOKEN"

#method bot telegram (more method https://core.telegram.org/bots/api#available-methods)
SEND_MESSAGE="$ENDPOINT/sendMessage"

# ===== BATAS PENGEDITAN

#function kirim email
function send_mail() {
        echo "From: $FROM" > $FILE_MAIL
        echo "To: $EMAIL" >> $FILE_MAIL
        echo "Subject: Service $2 tidak aktif" >> $FILE_MAIL
        echo "" >> $FILE_MAIL
        echo $1 >> $FILE_MAIL

        cat $FILE_MAIL | sendmail -t
}

#function kirim pesan telegram
function send_message() {
        curl -s -X GET $SEND_MESSAGE -d chat_id=$CHAT_ID -d text="$1"
}

service-check.sh

#!/bin/bash
#Description: Script check service yang non aktif
#Author: Yusuf Ayuba

#set path (ditest dan berfungsi normal di ubuntu 16.04 dan centos 7)
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/script

#include file lib.inc
source lib.inc

#check user allow
if [ "$(whoami)" != $USER_ALLOW ]; then
        echo "***********************************************"
        echo "Script harus dijalankan menggunakan user: ${USER_ALLOW}"
        echo "***********************************************"
        exit 1
fi

#looping check
#status 0 = aktif, 1 = tidak aktif
for service in "${SERVICES[@]}"
do
  	#check service
        `pgrep $service >/dev/null 2>&1`
        STATUS=$(echo $?)
        echo $service": "$([ $STATUS == 0 ] && echo "AKTIF" || echo "NON AKTIF")
        if [ $STATUS == 1 ]; then
                #restart service yang down (non aktif)
                service $service start

                #untuk memastikan, check kembali service yang telah direstart
                `pgrep $service >/dev/null 2>&1`
                RESTART=$(echo $?)

                #kirim notifikasi ke email dan telegram
                if [ $RESTART == 0 ]; then
                        MESSAGE="Service $service down, tapi berhasil diaktifkan kembali"
                        send_message "$MESSAGE"
                        send_mail "$MESSAGE" "$service"
                else
                    	MESSAGE="Service $service down, harus diaktifkan secara manual"
                        send_message "$MESSAGE"
                        send_mail "$MESSAGE" "$service"
                fi
        fi
done