docker:volume:create []

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====== docker volume create ======

===== Description?? =====

Create a volume

[[:engine:api:v1|API 1.21+]]  The client and daemon API must both be at least [[:engine:api:v1|1.21]] to use this command. Use the ''docker version'' command on the client to check your client and daemon API versions.

===== Usage?? =====

<code>
$ docker volume create [OPTIONS] [VOLUME]
</code>

===== Extended description?? =====

Creates a new volume that containers can consume and store data in. If a name is not specified, Docker generates a random name.

For example uses of this command, refer to the [[#examples|examples section]] below.

===== Options?? =====

|Name, shorthand|Default|Description|
|''--driver'' , ''-d''|''local''|Specify volume driver name|
|''--label''| |Set metadata for a volume|
|''--name''| |Specify volume name|
|''--opt'' , ''-o''| |Set driver specific options|

===== Examples?? =====

Create a volume and then configure the container to use it:

<code>
$ docker volume create hello

hello

$ docker run -d -v hello:/world busybox ls /world
</code>

The mount is created inside the container�s ''/world'' directory. Docker does not support relative paths for mount points inside the container.

Multiple containers can use the same volume in the same time period. This is useful if two containers need access to shared data. For example, if one container writes and the other reads the data.

Volume names must be unique among drivers. This means you cannot use the same volume name with two different drivers. If you attempt this ''docker'' returns an error:

<code>
A volume named  "hello"  already exists with the "some-other" driver. Choose a different volume name.
</code>

If you specify a volume name already in use on the current driver, Docker assumes you want to re-use the existing volume and does not return an error.

==== Driver-specific options?? ====

Some volume drivers may take options to customize the volume creation. Use the ''-o'' or ''--opt'' flags to pass driver options:

<code>
$ docker volume create --driver fake \
    --opt tardis=blue \
    --opt timey=wimey \
    foo
</code>

These options are passed directly to the volume driver. Options for different volume drivers may do different things (or nothing at all).

The built-in ''local'' driver on Windows does not support any options.

The built-in ''local'' driver on Linux accepts options similar to the linux ''mount'' command. You can provide multiple options by passing the ''--opt'' flag multiple times. Some ''mount'' options (such as the ''o'' option) can take a comma-separated list of options. Complete list of available mount options can be found [[http://man7.org/linux/man-pages/man8/mount.8.html|here]].

For example, the following creates a ''tmpfs'' volume called ''foo'' with a size of 100 megabyte and ''uid'' of 1000.

<code>
$ docker volume create --driver local \
    --opt type=tmpfs \
    --opt device=tmpfs \
    --opt o=size=100m,uid=1000 \
    foo
</code>

Another example that uses ''btrfs'':

<code>
$ docker volume create --driver local \
    --opt type=btrfs \
    --opt device=/dev/sda2 \
    foo
</code>

Another example that uses ''nfs'' to mount the ''/path/to/dir'' in ''rw'' mode from ''192.168.1.1'':

<code>
$ docker volume create --driver local \
    --opt type=nfs \
    --opt o=addr=192.168.1.1,rw \
    --opt device=:/path/to/dir \
    foo
</code>

===== Parent command?? =====

^Command^Description|
|[[:engine:reference:commandline:volume:|docker volume]]|Manage volumes|

===== Related commands?? =====

|Command|Description|
|[[:engine:reference:commandline:volume_create:|docker volume create]]|Create a volume|
|[[:engine:reference:commandline:volume_inspect:|docker volume inspect]]|Display detailed information on one or more volumes|
|[[:engine:reference:commandline:volume_ls:|docker volume ls]]|List volumes|
|[[:engine:reference:commandline:volume_prune:|docker volume prune]]|Remove all unused local volumes|
|[[:engine:reference:commandline:volume_rm:|docker volume rm]]|Remove one or more volumes|
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