| title: | Formation |
|---|---|
| description: | A Deis formation is a set of infrastructure used to host a single application or service backed by a single git repository. |
| keywords: | formation, deis |
A :ref:`formation` is a set of infrastructure used to host a single application or service backed by a single git repository. Each formation includes :ref:`Layers <layer>` of :ref:`Nodes <node>` used to host services, a set of :ref:`Containers <container>` used to run isolated processes, and a :ref:`Release` that defines the current :ref:`Build` and :ref:`config` deployed by containers.