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Creating Production Vpc Multi Az

Published by aws in agent-toolkit-for-aws

No known issues6k installs

What this skill does

Creates a production-ready VPC with public and private subnets across multiple Availability Zones, including internet gateway, NAT gateways, route tables, and security groups following AWS Well-Architected principles. Use when deploying multi-AZ VPC infrastructure with automatic CIDR planning and DNS resolution.

Add Creating Production Vpc Multi Az to your agent

Review the source and files first. When you are ready, copy the prompt instruction or use the CLI command supported by your environment.

Install with a prompt

Paste this into a compatible coding agent:

add this skill "creating-production-vpc-multi-az" from https://github.com/aws/agent-toolkit-for-aws

Install with the CLI

Run this command in a controlled environment after reviewing the repository:

npx skills add https://github.com/aws/agent-toolkit-for-aws --skill creating-production-vpc-multi-az

Skill instructions

Creating a Production-Ready VPC Across Multiple Availability Zones

Overview

Domain expertise for creating production-ready VPC infrastructure distributed across multiple Availability Zones. Covers VPC creation with DNS support, public and private subnet layout with automatic CIDR calculation, internet gateway, NAT gateways for high-availability outbound access, route table configuration, and tiered security groups following AWS Well-Architected principles.

Create a production VPC

To create a fully configured multi-AZ VPC with public/private subnets, NAT gateways, route tables, and security groups, follow the procedure exactly. See Production VPC creation procedure.

Key parameters:

  • vpc_name (required): Name prefix for all resources
  • region (required): Target AWS region
  • allowed_web_cidrs (required): CIDR blocks allowed for web access — allow 0.0.0.0/0 only if explicitly requested
  • vpc_cidr (optional, default 10.0.0.0/16): VPC CIDR block
  • availability_zones (optional, default 3): Number of AZs (2–6)
  • environment (required): Environment tag
  • enable_ssh_access (optional, default false): Whether to create SSH security group

Troubleshooting

Insufficient Availability Zones

The target region must have at least 2 available AZs. Use aws ec2 describe-availability-zones to verify.

NAT Gateway creation delays

NAT Gateways can take several minutes to become available. The procedure waits for availability before configuring route tables.

Security group CIDR warnings

The procedure warns about 0.0.0.0/0 for web access CIDRs and recommends specific IP ranges for production workloads, but allows it if explicitly requested.

Files included

  • references/create-production-vpc-multi-az.md
  • SKILL.md
Creating Production Vpc Multi Az: Install, Source and Security | FunnelSlayer