terraform-module-template VS atlantis

You should not use multiple optional inputs, at least not if those are going to be used to decide to create optional resources. Instead you should favor composition of modules. An example of composition using "Higher order modules" can be found here https://github.com/DontShaveTheYak/terraform-module-template

Yeah I do. I'm actually the author of the https://github.com/DontShaveTheYak/terraform-module-template That sets up all those tools for you.

A higher-order module is just a module that calls another module to extend that modules functionality. You can see it being used here https://github.com/DontShaveTheYak/terraform-module-template/tree/main/modules/greet_multiple

My latest project is https://github.com/DontShaveTheYak/terraform-module-template

Atlantis is a pull request automation tool that works well with plain Terraform right away. But what if we're already using Terramate to generate Terraform code?

Atlantis automates reviewing and deploying Terraform via pull requests, streamlining collaboration and ensuring consistency across Terraform deployments.

For example, Atlantisgo for Terraform, Zapier’s Kubechecks for Argo CD, Quizlet’s GitHub action all do something similar to this. But a generic, extensible tool for IaC providers doesn’t seem to exist. Additionally, many of them require exposing your Kubernetes cluster or other infrastructure to third-party access, webhooks, etc.

Our first attempt was to introduce other engineering teams to Terraform - the Platform team was already using it extensively with Terragrunt, and using Atlantis to automate plan and apply operations in a Git flow to ensure infrastructure was consistent. We'd written modules, with documentation, and an engineer would simply need to raise a PR to use the module and provide the right values, and Atlantis (once the PR was approved by Platform) would go ahead and set it up for them.

Alternatively, you can look at solutions like Atlantis or spacelift.

Atlantis: https://www.runatlantis.io/

Looking at the commits at https://github.com/runatlantis/atlantis, it looks like 1.6.5. Am I right?

We use Atlantis [0] for CI/CD automation of Terraform pull requests to a centralized repository. It's pretty good too, especially for a self-hosted solution. I can't see how Terraform Cloud's costs would be justifiable for us without a custom contract.

[0] https://www.runatlantis.io/