DockerCLI/docs/reference/commandline/plugin_set.md

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# plugin set
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Change settings for a plugin
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## Description
Change settings for a plugin. The plugin must be disabled.
The settings currently supported are:
* env variables
* source of mounts
* path of devices
* args
## What is settable ?
Look at the plugin manifest, it's easy to see what fields are settable,
by looking at the `Settable` field.
Here is an extract of a plugin manifest:
```json
{
"config": {
"args": {
"name": "myargs",
"settable": ["value"],
"value": ["foo", "bar"]
},
"env": [
{
"name": "DEBUG",
"settable": ["value"],
"value": "0"
},
{
"name": "LOGGING",
"value": "1"
}
],
"devices": [
{
"name": "mydevice",
"path": "/dev/foo",
"settable": ["path"]
}
],
"mounts": [
{
"destination": "/baz",
"name": "mymount",
"options": ["rbind"],
"settable": ["source"],
"source": "/foo",
"type": "bind"
}
]
}
}
```
In this example, we can see that the `value` of the `DEBUG` environment variable is settable,
the `source` of the `mymount` mount is also settable. Same for the `path` of `mydevice` and `value` of `myargs`.
On the contrary, the `LOGGING` environment variable doesn't have any settable field, which implies that user cannot tweak it.
## Examples
### Change an environment variable
The following example change the env variable `DEBUG` on the
`sample-volume-plugin` plugin.
```console
$ docker plugin inspect -f {{.Settings.Env}} tiborvass/sample-volume-plugin
[DEBUG=0]
$ docker plugin set tiborvass/sample-volume-plugin DEBUG=1
$ docker plugin inspect -f {{.Settings.Env}} tiborvass/sample-volume-plugin
[DEBUG=1]
```
### Change the source of a mount
The following example change the source of the `mymount` mount on
the `myplugin` plugin.
```console
$ docker plugin inspect -f '{{with $mount := index .Settings.Mounts 0}}{{$mount.Source}}{{end}}' myplugin
/foo
$ docker plugins set myplugin mymount.source=/bar
$ docker plugin inspect -f '{{with $mount := index .Settings.Mounts 0}}{{$mount.Source}}{{end}}' myplugin
/bar
```
> [!NOTE]
> Since only `source` is settable in `mymount`,
> `docker plugins set mymount=/bar myplugin` would work too.
### Change a device path
The following example change the path of the `mydevice` device on
the `myplugin` plugin.
```console
$ docker plugin inspect -f '{{with $device := index .Settings.Devices 0}}{{$device.Path}}{{end}}' myplugin
/dev/foo
$ docker plugins set myplugin mydevice.path=/dev/bar
$ docker plugin inspect -f '{{with $device := index .Settings.Devices 0}}{{$device.Path}}{{end}}' myplugin
/dev/bar
```
> [!NOTE]
> Since only `path` is settable in `mydevice`,
> `docker plugins set mydevice=/dev/bar myplugin` would work too.
### Change the source of the arguments
The following example change the value of the args on the `myplugin` plugin.
```console
$ docker plugin inspect -f '{{.Settings.Args}}' myplugin
["foo", "bar"]
$ docker plugins set myplugin myargs="foo bar baz"
$ docker plugin inspect -f '{{.Settings.Args}}' myplugin
["foo", "bar", "baz"]
```
## Related commands
* [plugin create](plugin_create.md)
* [plugin disable](plugin_disable.md)
* [plugin enable](plugin_enable.md)
* [plugin inspect](plugin_inspect.md)
* [plugin install](plugin_install.md)
* [plugin ls](plugin_ls.md)
* [plugin push](plugin_push.md)
* [plugin rm](plugin_rm.md)
* [plugin upgrade](plugin_upgrade.md)