enabling-lambda-vpc-internet-access

What problem does it solve?

AWS Lambda functions running inside VPC private subnets often cannot reach the public internet because they do not have public IP addresses, breaking outbound calls to external services.

Core Features & Use Cases

• Creates NAT Gateway-based egress: Sets up NAT Gateway infrastructure to provide outbound internet access from private subnets.
• Configures subnet routing: Updates private subnet route tables so 0.0.0.0/0 traffic flows through the NAT Gateway.
• Validates security group egress: Ensures the Lambda security group outbound rules permit required HTTP/HTTPS traffic (typically ports 80 and 443).
• Use Case: Enable an existing VPC-attached Lambda to call a third-party API (e.g., payment provider, ticketing system, or public URL endpoints) without moving the function out of the VPC.

Quick Start

Ask the AI to set up NAT Gateway egress for your Lambda by following the Lambda VPC internet access setup procedure for the specific lambda function name you provide.