anthology
A private Terraform registry implementation that provides the same API as the official registry for hosting internal modules.
What is anthology?
Anthology is a private Terraform registry implementation that replicates the official Terraform Registry API. It allows organizations to host their Terraform modules internally when they cannot or should not be public, solving the need for private module management within infrastructure-as-code workflows.
DevOps engineers, infrastructure teams, and organizations using Terraform who need to maintain private module repositories for security, compliance, or organizational reasons.
Developers choose Anthology because it provides a fully compatible, self-hosted alternative to the public Terraform registry, offering flexibility in storage backends and deployment options while maintaining seamless integration with existing Terraform workflows.
Overview
A private Terraform registry implementation as an alternative to the official registry.
Use Cases
Best For
- Hosting proprietary Terraform modules internally
- Organizations with strict security or compliance requirements
- Teams needing full control over module versioning and distribution
- Companies using Terraform in air-gapped or restricted network environments
- Managing internal infrastructure modules across multiple teams
- Deploying private registries with customizable storage backends
Not Ideal For
- Teams exclusively relying on public Terraform modules with no proprietary code
- Organizations preferring fully-managed SaaS solutions like Terraform Cloud's private registry
- Small-scale projects where module management via Git tags is sufficient
- Budget-constrained environments where AWS resource costs are prohibitive
Pros & Cons
Pros
Functions identically to the public Terraform registry, ensuring drop-in replacement without modifying existing Terraform workflows, as stated in the description.
Supports memory, filesystem, and S3 backends, allowing teams to choose storage based on infrastructure needs, detailed in the command-line parameters table.
Can be deployed via Docker with configurable options, exemplified by the docker run command and docker-compose example in the README.
Includes a pre-built Terraform module for AWS that automates provisioning, reducing manual setup effort for cloud deployments.
Cons
The AWS Terraform module provisions paid resources like compute and storage, with explicit cost warnings in the README, leading to ongoing expenses.
As a reimplementation, it may lack features of the official registry, such as integrated discovery, analytics, or provider hosting, not mentioned in the README.
SSL setup requires manual certificate and key paths, and no built-in authentication or authorization mechanisms are documented, posing security gaps for multi-team use.
Frequently Asked Questions
Related Projects
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terralistTerraform Private Registry for modules and providers manageable from a REST API
TerraregOpen source Terraform module registry with UI, optional Git integration and deep analysis. Demo: https://terrareg-main.gitlab-pr.dockstudios.co.uk
boring-registryA Simple Terraform Provider and Module Registry
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