Terraform Cloud / Enterprise Workspaces vs. Spacelift Stacks

This post discusses the differences between two popular tools for managing Terraform codebases at scale - Spacelift and Terraform Cloud/Enterprise. Both tools combine source code, a git branch, a tool, and a directory to manage infrastructure resources. However, Spacelift supports multiple IaC tools such as OpenTofu, Pulumi, CloudFormation, K8s, Ansible, and Terragrunt, while Terraform Cloud/Enterprise only supports Terraform. Additionally, Spacelift allows users to customize their workflow by bringing their own image and controlling what happens before and after every runner phase, which is not possible with TFC/TFE. The post also provides a step-by-step guide on how to create both a TFC/TFE workspace and a Spacelift stack.