---
title: Charmhub |  interface
description: Interfaces describe the relation between two charms. This interface shows
  opinionated, standardized interface specifications for charm relations.
url: https://charmhub.io/integrations/placement
---

#

## Other charms using this interface

### Providers

* [placement](https://charmhub.io/placement)

### Requirers

* [nova-cloud-controller](https://charmhub.io/nova-cloud-controller)