# volume create

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Create a volume

### Options

| Name                          | Type     | Default  | Description                                                            |
|:------------------------------|:---------|:---------|:-----------------------------------------------------------------------|
| `--availability`              | `string` | `active` | Cluster Volume availability (`active`, `pause`, `drain`)               |
| `-d`, `--driver`              | `string` | `local`  | Specify volume driver name                                             |
| `--group`                     | `string` |          | Cluster Volume group (cluster volumes)                                 |
| `--label`                     | `list`   |          | Set metadata for a volume                                              |
| `--limit-bytes`               | `bytes`  | `0`      | Minimum size of the Cluster Volume in bytes                            |
| [`-o`](#opt), [`--opt`](#opt) | `map`    | `map[]`  | Set driver specific options                                            |
| `--required-bytes`            | `bytes`  | `0`      | Maximum size of the Cluster Volume in bytes                            |
| `--scope`                     | `string` | `single` | Cluster Volume access scope (`single`, `multi`)                        |
| `--secret`                    | `map`    | `map[]`  | Cluster Volume secrets                                                 |
| `--sharing`                   | `string` | `none`   | Cluster Volume access sharing (`none`, `readonly`, `onewriter`, `all`) |
| `--topology-preferred`        | `list`   |          | A topology that the Cluster Volume would be preferred in               |
| `--topology-required`         | `list`   |          | A topology that the Cluster Volume must be accessible from             |
| `--type`                      | `string` | `block`  | Cluster Volume access type (`mount`, `block`)                          |


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## Description

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

## Examples

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

```console
$ docker volume create hello

hello

$ docker run -d -v hello:/world busybox ls /world
```

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:

```console
A volume named  "hello"  already exists with the "some-other" driver. Choose a different volume name.
```

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.

### <a name="opt"></a> Driver-specific options (-o, --opt)

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

```console
$ docker volume create --driver fake \
    --opt tardis=blue \
    --opt timey=wimey \
    foo
```

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 [here](https://man7.org/linux/man-pages/man8/mount.8.html).

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

```console
$ docker volume create --driver local \
    --opt type=tmpfs \
    --opt device=tmpfs \
    --opt o=size=100m,uid=1000 \
    foo
```

Another example that uses `btrfs`:

```console
$ docker volume create --driver local \
    --opt type=btrfs \
    --opt device=/dev/sda2 \
    foo
```

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

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

## Related commands

* [volume inspect](volume_inspect.md)
* [volume ls](volume_ls.md)
* [volume rm](volume_rm.md)
* [volume prune](volume_prune.md)
* [Understand Data Volumes](https://docs.docker.com/storage/volumes/)