#!/usr/bin/env bash

set -xeuo pipefail

main() {
	# TODO: add all your desired regions here
	local -a regions=(ap-south-1)

	for region in "${regions[@]}"; do
		aws --region "${region}" cloudwatch put-metric-alarm \
			--alarm-name 'UnderutilizedCPU' \
			--alarm-description 'Detects instances with under utilized CPU across long time horizons' \
			--metric-name 'CPUUtilization' \
			--namespace 'AWS/EC2' \
			--statistic Average \
			--period  300 \
			--evaluation-periods 288 \
			--threshold 15 \
			--comparison-operator LessThanThreshold

		aws --region "${region}" cloudwatch put-metric-alarm \
			--alarm-name 'UnderutilizedMemory' \
			--alarm-description 'Detects instances with under utilized memory across long time horizons' \
			--metric-name 'MemoryUtilization' \
			--namespace 'System/Linux' \
			--statistic Average \
			--period  300 \
			--evaluation-periods 288 \
			--threshold 30 \
			--comparison-operator LessThanThreshold
	done
}

main "$@"