https://brenthollers.com/tags/vpc/Recent content in VPC on Brent HollersHugoen-USMon, 16 Feb 2026 00:00:00 +0000https://brenthollers.com/posts/absence-system-iac/part-2-building-with-terraform/Mon, 16 Feb 2026 00:00:00 +0000https://brenthollers.com/posts/absence-system-iac/part-2-building-with-terraform/<h1 id="building-secure-modular-infrastructure-with-terraform">Building Secure, Modular Infrastructure with Terraform</h1> <p><em>Part 2 of 4: Building Production-Grade Infrastructure</em></p> <hr> <h2 id="from-design-to-implementation">From Design to Implementation</h2> <p>In <a href="./part-1-from-manual-chaos-to-iac.md">Part 1</a>, we explored <strong>why</strong> we chose Infrastructure as Code and <strong>what</strong> architecture we designed. We made critical decisions about cloud providers, networking, security, and workflow automation.</p> <p>Now comes the <strong>how</strong>: implementing these decisions in Terraform with production-ready patterns.</p> <p><strong>By the end of this article, you&rsquo;ll understand:</strong></p> <ul> <li>Modular Terraform design philosophy</li> <li>VPC networking with public/private subnet isolation</li> <li>Security group least-privilege implementation</li> <li>HTTPS with Application Load Balancer and ACM</li> <li>Common pitfalls and how to avoid them</li> </ul> <p><strong>Target audience:</strong> This is hands-on. We&rsquo;re writing real Terraform code, explaining every decision, and showing patterns you can use immediately.</p>