Digger.dev

Digger is a tool that manages your Terraform infrastructure directly within your existing CI/CD system. It automatically runs a `terraform plan` for every pull request, showing the proposed changes as a comment. Once the PR is merged, it runs `terraform apply` to deploy the changes. It also handles state management, offers drift detection to spot configuration mismatches, and provides rollback capabilities if something goes wrong. A key point is that it runs inside your CI pipeline, so your cloud credentials and secrets never have to leave your own secure environment.

The tool is open-source and has gained significant traction with nearly 5,000 GitHub stars. It is designed to be a lightweight layer over Terraform, not a completely new platform. This makes it straightforward for teams already using tools like GitHub Actions or GitLab CI to integrate. It removes the need for manual terraform commands and reduces the risk of human error in the deployment process.

This is built for development and platform engineering teams that use Terraform for infrastructure as code. It is particularly useful for organizations that want to automate their infrastructure deployments without migrating to a full-blown, external DevOps platform. The list of trusted users, which includes companies like Uber and HP Enterprise, shows it is built for production use at scale.