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add one missing blank and remove double blanks 

add one missing blank and remove double blanks
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Dmitry Voytik 2016-10-19 17:43:14 +02:00 committed by GitHub
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8
engine/extend/plugins_volume.md
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@ -34,14 +34,14 @@ beyond the lifetime of a single Engine host. See the
## Command-line changes ## Command-line changes
A volume plugin makes use of the `-v`and `--volume-driver` flag on the `docker run` command. The `-v` flag accepts a volume name and the `--volume-driver` flag a driver type, for example: A volume plugin makes use of the `-v` and `--volume-driver` flag on the `docker run` command. The `-v` flag accepts a volume name and the `--volume-driver` flag a driver type, for example:
$ docker run -ti -v volumename:/data --volume-driver=flocker busybox sh $ docker run -ti -v volumename:/data --volume-driver=flocker busybox sh
This command passes the `volumename` through to the volume plugin as a This command passes the `volumename` through to the volume plugin as a
user-given name for the volume. The `volumename` must not begin with a `/`. user-given name for the volume. The `volumename` must not begin with a `/`.
By having the user specify a `volumename`, a plugin can associate the volume By having the user specify a `volumename`, a plugin can associate the volume
with an external volume beyond the lifetime of a single container or container 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 host. This can be used, for example, to move a stateful container from one
server to another. server to another.
@ -79,7 +79,7 @@ containers.
``` ```
Instruct the plugin that the user wants to create a volume, given a user Instruct the plugin that the user wants to create a volume, given a user
specified volume name. The plugin does not need to actually manifest the specified volume name. The plugin does not need to actually manifest the
volume on the filesystem yet (until Mount is called). volume on the filesystem yet (until Mount is called).
Opts is a map of driver specific options passed through from the user request. Opts is a map of driver specific options passed through from the user request.
@ -174,7 +174,7 @@ however the plugin may be queried again later if one is not provided.
``` ```
Indication that Docker no longer is using the named volume. This is called once Indication that Docker no longer is using the named volume. This is called once
per container stop. Plugin may deduce that it is safe to deprovision it at per container stop. Plugin may deduce that it is safe to deprovision it at
this point. this point.
`ID` is a unique ID for the caller that is requesting the mount. `ID` is a unique ID for the caller that is requesting the mount.