ec2-health.sh.txt

#!/bin/bash
# Purpose: Check the System Health, CPU Utilization & take actions accordingly
# Maintainer: Muhammad Asim@cloudelligent.com


# nproc command basically displays in output the number of available processing units
cores=`nproc`

# Last 15 min Load avarage on System

load=`awk '{print $3}'< /proc/loadavg`

echo " "

# Relative Load on System

# The correlation between Relative CPU utilization (x-axis) and Absolute CPU utilization (y-axis)

echo | awk -v c="${cores}" -v l="${load}" '{print "Relative load on EC2 instance is " l*100/c "%"}'


# Actions

usage=$(echo | awk -v c="${cores}" -v l="${load}" '{print l*100/c}' | awk -F. '{print $1}')
if [[ ${usage} -ge 80 ]]; then

    echo -e "\nCloudelligent Internal Infra is restarting\n"

    shutdown -r now
fi

# END