Integrating EC2 with Lambda (serverless)

Integrating EC2 Servers with Lambda Functions: A Comprehensive Guide, explore the comprehensive step by step guide.

Prerequisites

  • Amazon Web Services (AWS) account
  • Running EC2 instance(s)
  • IAM role for Lambda execution
  • Created Lambda function

Connection Methods

  1. API Gateway Integration

API Gateway provides a secure and scalable entry point for your application programming interface (API).

Step 1: Create API Gateway

  • Log in to AWS Management Console
  • Navigate to API Gateway
  • Create a new REST API
  • Define API endpoint and methods (e.g., POST, GET, PUT, DELETE)

Step 2: Integrate with Lambda

  • Create a new Lambda function or use an existing one
  • Set the handler and runtime environment (e.g., Node.js, Python, Java)
  • Configure the Lambda function to be triggered by API Gateway

Step 3: Connect EC2 to API Gateway

  • Use the EC2 instance’s public IP address or DNS name to send requests to API Gateway
  • Utilize AWS SDKs (e.g., Python, Java) or cURL for HTTP requests
  1. SQS (Simple Queue Service) Integration

SQS provides a reliable and scalable message queue for decoupling applications.

Step 1: Create SQS Queue

  • Log in to AWS Management Console
  • Navigate to SQS
  • Create a new standard queue

Step 2: Configure Lambda

  • Create a new Lambda function or use an existing one
  • Set the handler and runtime environment
  • Configure the Lambda function to be triggered by SQS

Step 3: Connect EC2 to SQS

  • Use the EC2 instance’s public IP address or DNS name to send messages to SQS
  • Leverage AWS SDKs (e.g., Python, Java) for message sending
  1. SNS (Simple Notification Service) Integration

SNS provides a scalable and reliable notification service for application messaging.

Step 1: Create SNS Topic

  • Log in to AWS Management Console
  • Navigate to SNS
  • Create a new topic

Step 2: Configure Lambda

  • Create a new Lambda function or use an existing one
  • Set the handler and runtime environment
  • Configure the Lambda function to be triggered by SNS

Step 3: Connect EC2 to SNS

  • Use the EC2 instance’s public IP address or DNS name to publish messages to SNS
  • Utilize AWS SDKs (e.g., Python, Java) for message publishing

Security Considerations

  • IAM roles and permissions
  • API Gateway and SQS/SNS access policies
  • Encryption (e.g., SSL/TLS)
  • Monitoring and logging with AWS CloudWatch and AWS X-Ray

Benefits

  • Scalability and flexibility
  • Fault tolerance and reliability
  • Cost-effectiveness and reduced administrative burden
  • Easy maintenance and updates

Common Use Cases

  • Real-time data processing and analytics
  • Image and video processing
  • Machine learning and artificial intelligence
  • Web applications and APIs

Best Practices

  • Use AWS CloudFormation for infrastructure as code
  • Implement monitoring and logging for troubleshooting
  • Follow security best practices for IAM and access policies
  • Optimize performance and scalability with caching and load balancing

The article above is rendered by integrating outputs of 1 HUMAN AGENT & 3 AI AGENTS, an amalgamation of HGI and AI to serve technology education globally.

(Article By : Himanshu N)