AWS › AWS Cost Management & Billing
How can AWS Budgets Actions automatically respond to spending thresholds being exceeded, beyond just sending an alert?
AdvancedAnswer
AWS Budgets Actions let you configure automated responses that trigger once a budget threshold is exceeded, such as automatically applying a restrictive IAM policy to prevent further resource creation, or automatically stopping specific EC2 or RDS instances, providing an actual enforcement mechanism rather than just a passive notification, which is especially useful for controlling runaway costs in development or testing accounts.
aws budgets create-budget-action --account-id 123456789012 --budget-name dev-budget --action-type APPLY_IAM_POLICY --action-threshold '{"ActionThresholdValue":100,"ActionThresholdType":"PERCENTAGE"}'Real-world example A company sets up a Budgets Action on its development account that automatically attaches a policy denying the launch of new EC2 instances once the monthly budget threshold is fully exceeded, effectively putting a hard stop on unplanned overspending.