AWS Lambda Tutorial | Stop EC2 Instance Using Lambda Function

Welcome to Learn More Technologies! 🚀 In this video, you will learn AWS Lambda and a real-time automation use case — how to stop an EC2 instance using a Lambda function. This is a very common and important use case for cost optimization and automation in AWS. We will explain both the concept and the hands-on implementation step by step. ⚙️ What You Will Learn in This Video: 1️⃣ What is AWS Lambda? Serverless compute service No server management Pay only for execution time Event-driven architecture 2️⃣ Why Use Lambda to Stop EC2? Reduce AWS cost Automate non-production environments Stop idle EC2 instances Used with EventBridge (CloudWatch) scheduler 3️⃣ Architecture Overview AWS Lambda function IAM Role with EC2 permissions EC2 instance Optional: EventBridge for scheduling 4️⃣ IAM Role Creation (Important Step) Create IAM role for Lambda Attach permissions: ec2:StopInstances ec2:DescribeInstances 5️⃣ Create Lambda Function (Hands-On) Runtime: Python Create Lambda function Add IAM role Paste EC2 stop code Sample Lambda Code (Python): import boto3 def lambda_handler(event, context): ec2 = boto3.client('ec2') ec2.stop_instances( InstanceIds=['i-xxxxxxxxxxxx'] ) return "EC2 Instance Stopped Successfully" 6️⃣ Test Lambda Function Configure test event Execute function Verify EC2 instance state changes to stopped 7️⃣ Automate with EventBridge (Optional) Schedule Lambda to run at a specific time Example: Stop EC2 every day at 7 PM Useful for dev/test environments 🎯 Who Should Watch This? ✔ AWS beginners ✔ Cloud & DevOps engineers ✔ Students preparing for AWS certifications ✔ Anyone learning AWS automation 📌 Why This Use Case is Important? This Lambda + EC2 automation is widely used in real-world projects to: Save AWS billing costs Improve cloud efficiency Build serverless automation skills 👍 If this video helped you, Like 👍, Share 📤, and Subscribe 🔔 to Learn More Technologies for more AWS hands-on tutorials! 💬 Comment below if you want a Lambda + EC2 Start automation or cost optimization series next. #aws #lambdafunction #awslambda #ec2instance #awstutorial #serverlesscomputing #cloudcomputing #learnaws #devops #AWSAutomation #costoptimization #awsbeginner #learnmoretechnologies #techlearning