Ever since the private preview of Terraform Stacks, I’ve been eager to dive in and explore this new approach to provisioning infrastructure. After a year in private preview, the public beta was finally announced at HashiConf 2024, and I’m excited to share my experience!
In this blog, I’ll walk you through the essentials of Terraform Stacks configurations and demonstrate how to deploy a REST API as an S3 proxy using API Gateway.
What is a Stack?
Terraform excels at planning and applying changes to individual resources, but it has historically lacked a built-in solution for consistently deploying identical infrastructure across multiple environments or cloud regions. To work around this, many of us developed our own methods. Personally, I’ve used workspaces for environment-specific configurations and duplicated code with different providers for multi-region setups. However, this approach sacrifices the DRY (Don’t Repeat Yourself) principle and requires stitching together dependencies manually, complicating state management and orchestration.
Terraform Stacks are designed to streamline the coordination, deployment, and lifecycle management of complex, interdependent configurations. With Stacks, we can easily replicate infrastructure across environments and regions, set orchestration rules, and automate the propagation of changes, drastically reducing time and operational overhead.
In essence, Stacks address the “bigger picture” of infrastructure provisioning, offering a scalable solution to manage consistent, repeatable deployments across environments and regions.
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