AWS Lambda Tutorial | Stop EC2 Instance Using Lambda Function
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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
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#serverlesscomputing #cloudcomputing #learnaws
#devops #AWSAutomation #costoptimization
#awsbeginner #learnmoretechnologies #techlearning
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