You can extend the capabilities of the Docker Engine by loading third-party plugins.
Plugins extend Docker's functionality. They come in specific types. For example, a volume plugin might enable Docker volumes to persist across multiple Docker hosts.
Currently Docker supports volume and network driver plugins. In the future it will support additional plugin types.
Follow the instructions in the plugin's documentation.
The following plugins exist:
The Flocker plugin is a volume plugin which provides multi-host portable volumes for Docker, enabling you to run databases and other stateful containers and move them around across a cluster of machines.
The GlusterFS plugin is another volume plugin that provides multi-host volumes management for Docker using GlusterFS.
The Keywhiz plugin is a plugin that provides credentials and secret management using Keywhiz as a central repository.
The REX-Ray plugin is a volume plugin which is written in Go and provides advanced storage functionality for many platforms including EC2, OpenStack, XtremIO, and ScaleIO.
If you are having problems with Docker after loading a plugin, ask the authors of the plugin for help. The Docker team may not be able to assist you.
If you are interested in writing a plugin for Docker, or seeing how they work under the hood, see the docker plugins reference.