Arnaud Porterie
cfff66c7bb
Signed-off-by: Arnaud Porterie <arnaud.porterie@docker.com> (cherry picked from commit a31633c2707c78c2ffd684a5a3e576f310af0fb5) Upstream-commit: 8d0486832dafb775e93dafd1229fcf7e81ee4a28 Component: engine
44 lines
1.8 KiB
Markdown
44 lines
1.8 KiB
Markdown
page_title: Experimental feature - Volume plugins
|
|
page_keywords: experimental, Docker, plugins, volume
|
|
|
|
# Overview
|
|
|
|
Docker volume plugins enable Docker deployments to be integrated with external
|
|
storage systems, such as Amazon EBS, and enable data volumes to persist beyond
|
|
the lifetime of a single Docker host. See the [plugin documentation](/experimental/plugins)
|
|
for more information.
|
|
|
|
# Command-line changes
|
|
|
|
This experimental features introduces two changes to the `docker run` command:
|
|
|
|
- The `--volume-driver` flag is introduced.
|
|
- The `-v` syntax is changed to accept a volume name a first component.
|
|
|
|
Example:
|
|
|
|
$ docker run -ti -v volumename:/data --volume-driver=flocker busybox sh
|
|
|
|
By specifying a volume name in conjunction with a volume driver, volume plugins
|
|
such as [Flocker](https://clusterhq.com/docker-plugin/), once installed, can be
|
|
used to manage volumes external to a single host, such as those on EBS. In this
|
|
example, "volumename" is passed through to the volume plugin as a user-given
|
|
name for the volume which allows the plugin to associate it with an external
|
|
volume beyond the lifetime of a single container or container host. This can be
|
|
used, for example, to move a stateful container from one server to another.
|
|
|
|
The `volumename` must not begin with a `/`.
|
|
|
|
# API changes
|
|
|
|
The container creation endpoint (`/containers/create`) accepts a `VolumeDriver`
|
|
field of type `string` allowing to specify the name of the driver. It's default
|
|
value of `"local"` (the default driver for local volumes).
|
|
|
|
# Related GitHub PRs and issues
|
|
|
|
- [#13161](https://github.com/docker/docker/pull/13161) Volume refactor and external volume plugins
|
|
|
|
Send us feedback and comments on [#13420](https://github.com/docker/docker/issues/13420),
|
|
or on the usual Google Groups (docker-user, docker-dev) and IRC channels.
|