End‑to‑End IaC Architecture

Overview

This end‑to‑end IaC architecture represents a complete Azure platform built using Landing Zones, Terraform, and DevOps pipelines. It brings together identity, networking, management, security, governance, and workloads into a single, automated deployment model that can be repeatedly applied across environments (DEV/TEST/PROD, corporate, and customer workloads).

Azure Landing Zone Structure

The platform is organized using Azure Management Groups and subscriptions aligned to the Cloud Adoption Framework:

Global root management group with domains for Compliance, Platform, Workloads, MSDN, and Corporate.
Dedicated subscriptions for Connectivity, Identity, Management, PROD, TEST, DEV, and sandboxes.
Landing Zones for Connectivity, Management, Workloads, and Corporate applications.

Core IaC Modules

Core / Resource Organization

Create Management Groups and hierarchy.
Define and assign Policy Definitions and Initiatives.
Create Role Definitions and Role Assignments.
Provision foundational Resource Groups.

Management

Deploy Log Analytics workspaces and Automation Accounts.
Configure diagnostic settings and monitoring baselines.
Enable Defender for Cloud and cost management views.
Standardize logs, metrics, and alerting patterns.

Identity

Integrate Azure Entra ID and domain services.
Apply identity and access policies via IaC.
Create Entra ID resources and role templates.
Enforce secure identity patterns across workloads.

Connectivity

Deploy regional hub virtual networks and shared services.
Configure Azure Firewall, VPN Gateway, ExpressRoute.
Implement hub‑and‑spoke or mesh topologies.
Centralize DNS and routing for all workloads.

DevOps & Terraform Workflow

The entire platform is delivered through Infrastructure as Code using Terraform and Azure DevOps:

Terraform modules encapsulate core, management, identity, and connectivity patterns.
Azure DevOps pipelines orchestrate plan/apply workflows across environments.
Policies, roles, and platform resources are version‑controlled in Git.
Alerts, action groups, and application environments are provisioned as part of the same pipeline.

Outcome

This end‑to‑end IaC approach provides a repeatable blueprint for building secure, compliant, and scalable Azure environments. It allows enterprises to onboard new workloads quickly, maintain strong governance, and evolve the platform over time without sacrificing consistency or control.