Using Pulumi and Structurizr to Build a C4 Model

Anuj Agarwal
5 min readJul 31, 2024

In modern software development, it’s crucial to have clear and effective ways to design, manage, and visualize your infrastructure and architecture.

Combining Pulumi and Structurizr can provide a powerful way to manage and visualize your infrastructure and software architecture. Pulumi allows you to define your infrastructure as code, while Structurizr enables you to visualize your architecture using the C4 model. This guide will walk you through an example of how to use both tools to build a C4 model for a simple web application.

Basic of C4 Model , Pulumi and Structurizr and how they can help you.

What is the C4 Model?

The C4 model is a simple yet powerful way to visualize software architecture. It breaks down the architecture into four levels:

  1. Context Diagram: Shows how your system interacts with external users and systems.
  2. Container Diagram: Details the high-level technology components, like web servers, databases, and APIs.
  3. Component Diagram: Focuses on the internal structure of each container, showing how different parts of your system work together.
  4. Code (or Class) Diagram: Provides the most detailed view, focusing on the implementation details like classes and

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Anuj Agarwal

Director - Technology at Natwest. Product Manager and Technologist who loves to solve problems with innovative technological solutions.