About Terraform IBM Modules (TIM)

The Terraform IBM Modules (TIM) provides a curated collection of open-source, enterprise-ready Terraform modules designed to simplify the creation, management, and versioning of complex, compliant environments on IBM Cloud.

These modules are purpose-built for IBM Cloud services, following secure-by-default principles and fully aligned with IBM Cloud best practices. They streamline provisioning tasks and deliver enterprise-ready capabilities for production deployments. Engineered for speed, security, and scalability, TIM enables rapid deployment of robust architectures while ensuring strong governance and reliability standards.

How to use Terraform IBM Modules?

Start by identifying the IBM Cloud service you want to provision — such as Object Storage, Databases, or Virtual Private Cloud (VPC) and then locate the corresponding Terraform module in the terraform-ibm-modules organization. For example, use the terraform-ibm-cos module for IBM Cloud Object Storage, or the terraform-ibm-cloud-monitoring module for deploying IBM Cloud Monitoring instance. Refer here for a more detailed overview.

Before integrating a module into your project, review the available README documentation to understand key details such as required and optional input variables, output values, dependencies, minimum required permissions, and version compatibility with Terraform and the IBM Cloud provider. Each module also includes examples typically a basic example demonstrating minimal configuration using default values, and an advanced example showcasing full functionality and broader configuration options. These examples provide practical guidance for common usage patterns.

Workflow

In general, you will need to execute the following sequence of actions to deploy infrastructure as code using Terraform IBM Modules.

Understand module configuration, review documentation and examples.
Create your project directory and write your Terraform configuration referencing the module.
Execute the Terraform code.

Learn more about how to Deploy a Terraform IBM Module.

Benefits of using Terraform IBM Modules

Terraform IBM Modules can add more value to your Infrastructure as Code practice in one or more of the following ways:

Benefits
Benefit	Description
Best-practice architecture	Modules are built following IBM Cloud and Terraform best practices, reducing design and configuration errors.
Broad service coverage	Provides modules for storage, networking, compute, security, and databases across IBM Cloud.
Actively maintained	Many modules are supported by the IBM Cloud development organization and the open-source community.
Consistent and maintainable IaC	Standardized inputs, outputs, and patterns improve code quality and simplify team collaboration.
Faster development	Prebuilt modules eliminate boilerplate Terraform coding, accelerating provisioning and reducing effort.
Modular and reusable	Encourages building reusable, composable infrastructure rather than large monolithic configurations.
Clear documentation and examples	Each module includes READMEs and basic/advanced examples to guide correct usage.
Controlled versioning	Versioned modules allow safe updates, controlled rollouts, and easier dependency management.
Enterprise-ready	Modules support secure, scalable, and compliant configurations suitable for enterprise workloads.

Building larger solutions using multiple modules

Terraform’s modular design allows you to integrate two or more TIM modules together to create a larger, opinionated, and production-ready solution. Instead of deploying modules separately, you can compose them within a root configuration and use the complete architecture. By combining modules, you can construct a cohesive solution such as a secure VPC-based architecture with monitoring, logging, and encryption enabled. Outputs from one module can become inputs to another, enabling dependency chaining and consistent architecture composition.

See the provided examples built using TIM modules, Secure infrastructure for AI applications and Build a Secure Hub-and-Spoke Infrastructure.

Deployment options

You can deploy your architecture using several different approaches depending on your tooling, workflow, and automation needs.

Some common deployment patterns include:

Deployable Architecture (DA): A Deployable Architecture is a terraform solution often built using multiple TIM modules to create an architectural pattern. The DA can be published as a deployable solution in the IBM Cloud catalog which allows teams to consume complex architecture without writing or understanding Terraform. Publishing as a DA is one option for teams who want to make reusable architectures available inside their organization. You can find more details here for deployment steps.
Plain Terraform: Create a Terraform configuration that calls multiple TIM modules. This configuration can be deployed either using Terraform CLI or through IBM Cloud Schematics.
Terragrunt: Terragrunt provides additional capabilities such as DRY configurations, environment layering, remote state management, and orchestration of multiple modules. More information is available in this tutorial.
HashiStack: You can use TIM modules with HashiStack platforms to support collaborative, policy-driven, and automated deployments.
Pulumi: Pulumi enables you to write IaC using familiar languages such as Python, Go, TypeScript, or C#. If you're new to this, the tutorial will help you get started.

Next steps

As next steps, explore TIM modules using the following references: