# The CAPTF book is online

The documentation for Cluster API Provider Terraform now has a home of its own at [captf.io/docs](<https://captf.io/docs/index.md>). It covers what CAPTF is and how it works, how to run clusters with it, how to write a module for it, and how to operate the manager.

## What is in it

- **Getting started.** A [Quick Start](<https://captf.io/docs/getting-started/quick-start/index.md>) that installs the provider and brings up a cluster with the no-op modules, on any Kubernetes cluster and with no cloud account, and a tutorial that takes you through [your first module](<https://captf.io/docs/getting-started/first-module/index.md>).
- **Concepts.** The [architecture](<https://captf.io/docs/concepts/architecture/index.md>), the kinds, Terraform state, secrets, approvals, jobs and deletion, each explained from the controller’s side.
- **Guides.** How to provide credentials, pass module variables, use ClusterClass templates, run machine pools, and handle drift and plan approval.
- **The module contract.** The [`v1alpha1` contract](<https://captf.io/docs/module-author/contract/v1alpha1/index.md>) every module is written to, with its changelog, and integration guides for the kubeadm and RKE2 control planes.
- **Operations and runbooks.** Installation, configuration, observability, upgrades and recovery, and [runbooks](<https://captf.io/docs/operator-guide/runbooks/index.md>) for failing Jobs, stuck destroys, stale locks and more.
- **Reference.** The API, conditions, events, metrics, alerts and flags, generated from the provider’s source so they stay in step with it.

## Status

Every kind and the module contract are `v1alpha1` and pre-release: the contract is frozen for implementation but may still change. CAPTF has no end-to-end tests yet. The [Known Limitations](<https://captf.io/docs/operator-guide/limitations/index.md>) page lists everything it does not do.