Introduction

In this technology era we are always concerned about reducing the cost whether its CAPex or OPex related. Running EC2 instances 24/7 when they’re not in use can lead to unnecessary costs, especially in development and testing environments. Fortunately, AWS offers a way to automate shutdowns using Lambda functions and CloudWatch Event Rules (now known as EventBridge).

In this guide, you’ll learn how to schedule automatic EC2 shutdowns every day using a simple Python Lambda function and a CloudWatch cron rule.