---
title: Reference
description: Canonical makes open source secure, reliable and easy to use, providing
  support for Ubuntu and a portfolio of enterprise-grade technologies. Founded in
  2004, Canonical operates globally with team members in over 80 countries.
url: https://canonical-com-2946.demos.haus/maas/docs/reference?format=md
---

*Submit*

# Reference

Find the precise details to set parameters, make informed decisions, and take the right actions in MAAS.

## [Release notes](https://canonical-com-2946.demos.haus/maas/docs/reference?format=md#p-12193-release-notes)

The MAAS [release notes](https://maas.io/docs/release-notes-and-upgrade-instructions) provide a comprehensive record of the last few versions of MAAS.

## [MAAS API and CLI reference](https://canonical-com-2946.demos.haus/maas/docs/reference?format=md#p-12193-maas-api-and-cli-reference)

Every feature available in the UI is also accessible through the MAAS API and CLI.

* [Learn how to login to the MAAS API](https://maas.io/docs/how-to-authenticate-to-the-maas-api).
* [Manage your API profile](https://maas.io/docs/profile).
* [Discover MAAS API calls](https://maas.io/docs/api).
* [Get extended help with MAAS CLI commands](https://maas.io/docs/cli-reference).

## [Configuration guides](https://canonical-com-2946.demos.haus/maas/docs/reference?format=md#p-12193-configuration-guides)

These essential reference materials will help make better choices, resolve issues, and clarify ambiguities.

* [Installation requirements](https://maas.io/docs/installation-requirements).
* [cloud-init](https://maas.io/docs/how-to-use-cloud-init-with-maas).
* [Configuration options](https://maas.io/docs/configuration-reference).
* [Hardware test scripts](https://maas.io/docs/reference-hardware-test-scripts).
* [Logging reference](https://maas.io/docs/maas-logging-reference).
* [MAAS metric parameters](https://maas.io/docs/reference-maas-metrics).
* [Power drivers catalog](https://maas.io/docs/reference-power-drivers).
* [Standard storage layouts](https://maas.io/docs/reference-maas-storage#p-17455-standard-storage-layouts).
* [Custom storage layouts](https://maas.io/docs/reference-maas-storage#p-17455-custom-storage-layouts).
* [Terraform](https://maas.io/docs/reference-terraform).
* [Troubleshooting guide](https://maas.io/docs/maas-troubleshooting-guide).

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Last updated 1 year, 1 month ago. [Help improve this document in the forum](https://discourse.maas.io/t/reference/6143).