AWS Network Baseline with Terraform
Built a production-ready AWS network foundation using Infrastructure as Code, establishing secure multi-AZ architecture with public/private subnets, NAT gateways, and routing best practices.
Terraform AWS VPC Multi-AZ NAT Gateway IaC
The Challenge
Organizations need a repeatable, secure AWS network foundation that follows best practices. Manual network setup is error-prone, hard to replicate, and lacks version control. Without a standardized baseline, each new project faces the same setup challenges, leading to inconsistent security postures and wasted engineering time.
The Solution
Designed and implemented a modular Terraform configuration that creates a production-grade AWS VPC with multiple availability zones. The solution includes public subnets for internet-facing resources, private subnets for application workloads, NAT gateways for outbound connectivity, route tables with proper associations, and security group foundations. All infrastructure is defined as code, version-controlled, and fully reproducible.
Technical Implementation
The implementation uses Terraform modules to separate concerns and promote reusability. The VPC module creates the base network with CIDR block allocation and DNS support. The subnet module handles multi-AZ subnet creation with proper CIDR calculations. NAT gateway and Elastic IP resources are provisioned in public subnets for private subnet internet access. Route tables are configured with appropriate associations to control traffic flow. The entire setup follows AWS Well-Architected Framework principles for security and reliability.
Results & Impact
Optimized NAT usage
Cost
Least-privilege by default
Security
Replicable
Environments
< 5 minutes
Deployment Time
Want Similar Results?
Let's discuss how I can help transform your infrastructure.