[📑 Docs]: Normalize structure: Elastic Load Balancer with LocalStack

[blkgrlcto]

What docs changes are you proposing?

Source: https://docs.localstack.cloud/aws/tutorials/elb-load-balancing/

What’s missing

• Intro
• Prerequisites
• Architecture diagram
• Steps
• Testing the application
• Conclusion

Proposed edits

• Add ## Introduction.
• Add ## Architecture diagram.
• Add ## Testing the application with ELB DNS curl checks.
• Add ## Conclusion.

Acceptance criteria

• All 6 sections present with diagram and explicit validation.

Code of Conduct

• I agree to follow this project's Code of Conduct

[abhirajadhikary06]

@blkgrlcto Assign me this issue. I have got an overview of what is required to be done.

1. Add 'Introduction' header wrapping existing ELB overview.
2. Insert 'Architecture' section with diagram (Client → ALB → Target Group → Lambdas.
3. Group setup/deploy into 'Steps' header.
4. Extract curl/jq tests to new 'Testing the application' section with validation steps.
5. Enhance existing 'Conclusion' with closure sentence.

Proposed Architecture diagram format.

Architecture

The setup involves forwarding HTTP/HTTPS traffic through an ALB to Lambda targets in a VPC. Key components:

• Client/Browser: Sends requests to the ALB DNS endpoint.
• ALB Listener: Receives traffic on port 80/443 and routes based on path rules.
• Target Group: Forwards to registered Lambda functions (e.g., via priority rules for /hello1 and /hello2).
• Lambda Functions: Process requests and return responses (e.g., "Hello 1").
• VPC/Subnet: Provides isolated networking for the ALB.

Correct me if I am wrong at any point.