57 lines
2.3 KiB
Bash
57 lines
2.3 KiB
Bash
#!/bin/bash
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#This script monitors server load and memory usage for every 10 seconds and sends notification to telegram in case of high usage.
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#Include telegram chat id and bot token ID here
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chat_id=""
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token=""
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host=$HOSTNAME
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ip=($(hostname -I))
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#Temporary files to store data
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resource_usage_info=/tmp/resource_usage_${host}.txt
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msg_caption=/tmp/telegram_msg_caption.txt
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#Set threshold levels for memory usage and load here. If the usage exceeds these values, the notification will be sent.
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mem_threshold=80 #Should be interger. This is in percentage
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load_threshold=$(nproc) #Should be integer. Usually total number of cores.
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#Telegram API to send notificaiton.
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function telegram_send
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{
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curl -s -F chat_id=$chat_id -F parse_mode=markdown -F document=@$resource_usage_info -F caption="$caption" https://api.telegram.org/bot$token/sendDocument > /dev/null 2&>1
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}
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#Monitoring Load on the server
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while :
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do
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min_load=$(cat /proc/loadavg | cut -d . -f1)
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if [ $min_load -ge $load_threshold ]
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then
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echo -e "⚠️High CPU usage detected⚠️\n🖥$(hostname)\n🌎$ip\n⏱$(uptime)\n#CPU" > $msg_caption
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echo -e "CPU usage report from $(hostname)\nServer Time : $(date +"%d%b%Y %T")\n\n\$uptime\n$(uptime)\n\n%CPU %MEM USER\tCMD" > $resource_usage_info
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ps -eo pcpu,pmem,user,cmd | sed '1d' | sort -nr >> $resource_usage_info
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caption=$(<$msg_caption)
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telegram_send
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rm -f $resource_usage_info
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rm -f $msg_caption
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sleep 60 #stop executing script for 15 minutes
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fi
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sleep 10
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#Monitoring Memory usage on the server
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mem=$(free -m)
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mem_usage=$(echo "$mem" | awk 'NR==2{printf "%i\n", ($3*100/$2)}')
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if [ $mem_usage -gt $mem_threshold ]
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then
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echo -e "⚠️High Memory usage detected⚠️\n🖥$(hostname)\n🌎$ip\n🔸$(echo $mem_usage% memory usage)\n#RAM" > $msg_caption
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echo -e "Memory consumption Report from $(hostname)\nServer Time : $(date +"%d%b%Y %T")\n\n\$free -m output\n$mem\n\n%MEM %CPU USER\tCMD" > $resource_usage_info
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ps -eo pmem,pcpu,user,cmd | sed '1d' | sort -nr >> $resource_usage_info
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caption=$(<$msg_caption)
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telegram_send
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rm -f $resource_usage_info
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rm -f $msg_caption
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sleep 60 #stop executing script for 15 minutes
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fi
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sleep 10
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done
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